METHODS, SYSTEMS AND DEVICES FOR SPINAL SURGERY POSITION OPTIMIZATION
Three components are proposed, each having at its core a system for producing measurements of the relative motion of anatomical structures of mammals (the “measurement system”). The measurement system in this case would be comprised of an apparatus for imaging the joint of through a prescribed motion, and a process and mechanism for deriving quantitative measurement output data from the resulting images. The components of the present invention include: (1) a software device for reporting measurement output of the measurement system and for allowing users to interact with the measurement output data; (2) an apparatus and method for utilizing measurement output of the measurement system for therapeutic and surgical applications such as surgical navigation and patient positioning during a therapeutic procedure; and (3) an apparatus providing input image data for the measurement system that assists with the imaging of joints connecting anatomical regions that are in motion during operation.
This application is a continuation of application Ser. No. 15/295,402, filed Oct. 17, 2016, which is a continuation of application Ser. No. 14/874,813, filed Oct. 5, 2015, which is a continuation of Ser. No. 13/882,022, filed Jul. 16, 2013 which is the national stage of PCT/US2011/64404 filed Dec. 12, 2011, which claims the benefit of U.S. Provisional Application Nos. 61/451,548 filed Mar. 10, 2011, entitled Medical Imaging System Mounted and Movable Within a Vertical Plane for Imaging Moving Objects; 61/422,283, filed Dec. 13, 2010, entitled Methods Systems and Devices for a Clinical Data Reporting Software System, 61/444,265 filed Feb. 18, 2011, entitled Methods, Systems and Devices for A Clinical Data Reporting And Surgical Navigation, 61/453,236 filed Mar. 16, 2011, entitled Methods, Systems and Devices for a Clinical Data Reporting Software System, 61/454,601 filed Mar. 21, 2011, entitled Methods, Systems and Devices for a Clinical Data Reporting Software System and Product Design Tools, and 61/499,272 filed Jun. 21, 2011, entitled Methods, Systems and Devices for a Clinical Data Reporting and Surgical Navigation which applications are incorporated herein by reference.
BACKGROUND OF THE INVENTIONOne of the most prevalent joint problems is back pain, particularly in the “small of the back” or lumbosacral (L4-S1) region. In many cases, the pain severely limits a person's functional ability and quality of life. Such pain can result from a variety of spinal pathologies. Through disease or injury, the vertebral bodies, intervertebral discs, laminae, spinous process, articular processes, or facets of one or more spinal vertebrae can become damaged, such that the vertebrae no longer articulate or properly align with each other. This can result in an undesired anatomy, loss of mobility, and pain or discomfort. Duke University Medical Center researchers found that patients suffering from back pain in the United States consume more than $90 billion annually in health care expenses, with approximately $26 billion being directly attributable to treatment. Additionally, there is a substantial impact on the productivity of workers as a result of lost work days. Similar trends have also been observed in the United Kingdom and other countries.
As part of the diagnostic process of determining the cause of pain coming from a joint such as the lumbar spine, health care providers rely on an understanding of joint anatomy and mechanics when evaluating a subject's suspected joint problem and/or biomechanical performance issue. Currently available orthopedic diagnostic methods are capable of detecting a limited number of specific and treatable defects. These techniques include X-Rays, MRI, discography, and physical exams of the patient. In addition, spinal kinematic studies such as flexion extension X-rays are used to specifically detect whether or not a joint has dysfunctional motion. These methods have become widely available and broadly adopted into the practice of treating joint problems and addressing joint performance issues.
U.S. Pat. No. US 2004-0172145 A1 discloses a tilting table capable of some movement to keep an iso-center at a fixed position. U.S. Patent Publication No.: US 2006-0185091 A1 describes a multi-articulated tilting table which positions and supports a subject during examination and treatment. U.S. Pat. Publication No. US 2005-0259794 A1 to Breen discloses a device for controlling joint motion and minimizing the effects of muscle involvement in the joint motion being studied. See also U.S. Pat. No. 7,502,641. This device minimizes variability among joint motion measurements across wide populations of subjects. As a result, comparative analyses of such measurements can be performed to determine statistical differences between the motion of “normal” and “unhealthy” subjects which in turn can provide a basis for determining the statistical confidence with which any given subject could be considered “normal” or “unhealthy” based solely on joint motion measurements. US 2009/0099481 A1 to Deitz for Devices, Systems an Methods for Measuring and Evaluating the Motion and Function of Joints and Associated Muscles discloses an apparatus configured to cause and control joint motion of a patient.
New approaches that involve the use of patient positioning devices during imaging discussed above, coupled with the use of imaging modalities that afford for moving-video type images (such as fluoroscopy) and automated computer image processing, have created new clinical diagnostic capabilities. These capabilities include the ability to produce low variability, quartitative measurements of the relative motion between anatomical structures in mammals, and in particular the ability to measure inter-vertebral kinematics in live human subjects. These new capabilities base been validated in clinical studies to significantly outperform older methods, such as flexion/extension X-rays, in determining whether or not a human spine joint has dysfunctional motion with the development of these new systems for assessing inter-vertebral kinematics, there arises the need for components to enable a number of clinical applications of this newly-available diagnostic data.
One need is for new ways of viewing this new type of kinematic data. Another need is for the ability to leverage this data to improve upon the tools that users have in providing therapy to patients. Yet another need is to be able to generate measurement system results for anatomy that is typically hard or impossible to image, such as anatomy that does not stay fixed in space during operation, such as a knee (as opposed to a lumbar spine, which can be easily imaged with a fixed imaging device.
SUMMARY OF THE INVENTIONThree components to the system are proposed, each component is adapted and configured to work with a measurement system or device for producing or obtaining measurements of a relative motion of anatomical structures of mammals. The measurement system in this case would be comprised of, for example, an apparatus for imaging a target joint through a prescribed range of motion to obtain one or more images, and a process or device for deriving quantitative measurement output data from the images. The components of the present disclosure include (1) a software device having a user interface which delivers data from the measurement system; (2) an apparatus and method for utilizing measurement output of the measurement system for therapeutic and surgical applications such as surgical navigation and patient positioning during a therapeutic procedure; and (3) an apparatus providing input image data for the measurement system that assists with imaging during joint operation to afford for the imaging of joints connecting anatomical regions that are in motion during operation. The user is typically a healthcare provider or clinician.
The first of these three component, the clinical data reporting software interface, is an algorithm encoded in computer-readable media which delivers to a user interface at least one measurement output from the measurement system communicate through the process of initialization by a user, interpretation of results from the measurement system and comparison with aggregated data contained in the computer readable media. The software interface is configured to operate in a communications network, and with one or more input and output devices.
The clinical data reporting software interface allows the user to initialize the system once prior to or during a first use of the software interface to define, for example, a list of one or more procedures of interest, one or more associated risks, and one or more risk mitigation factors associated with each procedure. The initialization information can be updated as often as desired, and/or can be dynamically updated by communication with an service provided. These risk and risk mitigation factors relate to the appropriateness of a particular procedures in view of a specific patient's presentations. The combination of risk and risk mitigation factors are definable as specific alerts in the reporting system that can be presented to the user for consideration of changes to planned procedures for each patient based on that patient's specific measurement system testing results.
The clinical data reporting software interface integrates user preferences for procedures of interest along with associated risk factors and risk mitigation factors to facilitate interpretation of patient specific results for specific kinematic dysfunctions, at each spine level. Threshold limits for quantitatively detecting kinematic dysfunctions can be set and changed interactively by the user.
The clinical data reporting software interface provides a process and mechanism for collecting additional data on each subject to include: demographic, height/weight/other physical measurements, subject history, symptoms, co-morbidities, neurologic exam results, prior procedures performed and related outcome, and others; as well as a process and device for transmitting this additional data to an aggregated database.
The clinical data reporting software interface provides a process and device for collecting aggregated data from all subjects tested, creating a database that can be used for consideration and comparison of outcomes for subjects matched based on: 1) kinematic presentation, 2) additional data collected, and 3) procedure being considered. User can view potential clinical outcomes of procedure being considered by querying aggregated database.
The clinical data reporting software interface interprets kinematic results of subjects that were tested in a standing or lying down position, which allows for isolating the muscle or load contribution, and additionally allowing for the use of this data within a computer model of spine biomechanics that can further isolate the potential muscular and soft tissue causes of any functional problems.
The surgical navigation and patient positioning system is an apparatus and method for utilizing measurement output of the measurement system during therapeutic procedures. It comprises a communications network, communication medium, input and output devices, computing application and software application that communicate and compute data through the process of acquisition of data from the measurement system, processing of data to determine appropriate target geometric and spatial parameters, communicating this data to a surgical navigation system and/or a patient positioning device (such as an intra-operative patient positioning device).
The surgical navigation and patient positioning system provides a mechanism to incorporate kinematic data into systems used by users during therapeutic procedures, specifically surgical navigation and surgical pattern positioning systems. In the case of surgical navigation, an apparatus and method are provided for determining the optimal geometry for a surgical construct; such as determining the optimal spatial relationships between and among an inter-body device, posterior rods and screws, and two vertebral endplates for spinal fusion surgical construct. Once determined, the data describing this optimal geometry is then communicated to a surgical navigation system and incorporated into the system's targeting module, so that the surgical navigation system can be used to assist the surgeon in achieving optimal geometry for the surgical construct. In the case of patient positioning (such as intra-operative patient positioning), an apparatus and method are provided for determining and achieving the optimal positioning of the patient on the procedure table. Once determined, the data describing this optimal positioning of the patient is then communicated to a surgical patient positioning system and incorporated into the position control system so that the optimal patient position can be achieved during surgery. The control system can additionally be in communication with additional patient data collection systems to provide real time feedback as to the effect of patient positioning changes on the position, orientation, and motion of the anatomy of interest, for the purpose of allowing the control system to achieve the target anatomical geometry and orientation by adjustments made to the surgical patient positioning system.
The imaging system is adaptable to be moveable within a vertical plane and is an apparatus providing input image data for the measurement system that assists with imaging during joint operation, it consists of a medical imaging system mounted to a free floating, ballasted vertical plane, so that the medical imaging system can be moved to keep joint anatomy within a moving field of view, such as keeping a knee in a field of view as a live human testing subject is walking. It incorporates motion recording sensors position-able with respect to an image intensifser system motion, with attachment mechanisms to engage the medical imaging system or the recording sensors to piece of human anatomy. It may additionally incorporate actuators capable of providing the motive force to affect a repositioning of the medical imaging system.
Having an imaging system moveable within a vertical plane is ideal for use with joints that connect two anatomical regions that both move, such as the human knee that connects the tibia/fibula to the femur, both of which are in motion during operation of the knee. This is in contrast to joints where one of the two anatomical regions connected by the joint stays relatively fixed, such as the torso for shoulder rotation, or the pelvis for lumbar spine rotation, and therefore can be imaged with a fixed imaging system such that the joint stays in within the field of imaging during operation. When both of the anatomical regions connected by a joint are in motion, it can be impossible to keep that joint within a field of view unless the imaging system is moving as well, which is an operational objective of the imaging system moveable within a vertical plane.
For all three of the components included in the present disclosure, the inputs, information and reports can be transmitted through either a direct wire-based electronic connection between the two or more components, or through a wireless connection, and can be of the type that is derived from computer programming or from operator, user or subject input, or from a combination of computer programmed information plus operator, user and/or subject input. Those skilled in the art will appreciate that the system described herein can be applied or incorporated into any communications network, communication medium, input and output devices and computing application available now and what will be available in the future.
An aspect of the disclosure is directed to a method for computer-assisted analysis of kinematic data. A method comprising, for example, encoding a kinematic evaluation algorithm as one or more decision trees, each decision tree further comprising, one or more decision points comprising one or more questions, and one or more termination points, providing one or more images for a patient from an imaging system; initiating an evaluation by identifying one or more proposed procedures for the patient; evaluating the proposed procedure applied to the one or more images from the imaging system according to the algorithm; comparing the evaluation of the proposed procedure to a user profile; and providing a summary of one or more alerts for the one or more proposed procedures based on the user profile and the one or more patient images. Additionally, the method can be performed on a communication network. In some aspects, the method further comprises the steps of: creating a user profile prior to the step of providing one or more images from an imaging system wherein the step of creating further composes identifying one or more procedures of interest for the user, creating one or more alerts for the one or more procedures of interest based on a user preference, wherein the alerts include one or more kinematic risk factors and one or more kinematic mitigation factors. Additionally, the one or more alerts can be based on one or more threshold limits set by the user, either during the initiation process or during a later adjustment. The method is adaptable such that the user an user change the one or more threshold limits at any time, including during evaluation of a particular patient's data. Typically, a summary is provided to the user by a results viewer. In some aspects, the additional steps of comparing the evaluation of the proposed procedure to the updated one or more threshold limits and providing an updated summary of one or more alerts for the one or more proposed procedures is also contemplated. Additionally, one or more alerts can be allocated a priority and, in at least some configurations, the one or more alerts can be presented to the user in a sort based on the allocated priority. Additionally, risk mitigation factors are categorizable as at least one or more of good, bad, and neutral. Moreover, in at least some aspects, the summary is displayed on an electronic device screen and further wherein the summary is displayed with one or more of each of videos, images, and tables. Additionally, the step of evaluating can further comprise evaluating one or more patient specific parameters. In at least some situations, the one or more patient specific parameters is one or more parameter selected from the group comprising: demographics, height, weight, physical measurements, health history, symptoms, neurological exam results, co-morbidities.
Still another aspect of the disclosure is directed to a method for computer-assisted analysis of kinematic data. The computer-assisted method comprises, for example: aggregating kinematic data from two or more patients into a database; encoding a kinematic evaluation algorithm as one or more decision trees, each decision tree further comprising, one or more decision points comprising one or more questions; and one or more termination points, providing one or more images for a patient from an imaging system according to the algorithm; initiating an evaluation by identifying one or more proposed procedures for the patient; evaluating the proposed procedure applied to the one or more images from the imaging system and the database of aggregated data; comparing the evaluation of the proposed procedure to a user profile; and providing a summary of one or more alerts for the one or more proposed procedures based on the user profile and the one or more patient images. Additionally, the method can be performed on a communication network. In some aspects, the method further comprises the steps of: creating a user profile prior to the step of providing one or more images from an imaging system wherein the step of creating further comprises identifying one or more procedures of interest for the user, creating one or more alerts for the one or more procedures of interest based on a user preference, wherein the alerts include one or more kinematic risk factors and one or more kinematic mitigation factors. Additionally, the one or more alerts can be based on one or more threshold limits set by the user, either during the initiation process or during a later adjustment. The method is adaptable such that the user an user change the one or more threshold limits at any time, including during evaluation of a particular patient's data. Typically, a summary is provided to the user by a results viewer. In some aspects, the additional steps of comparing the evaluation of the proposed procedure to the updated one or more threshold limits and providing an updated summary of one or more alerts for the one or more proposed procedures is also contemplated. Additionally, one or more alerts can be allocated a priority and, in at least some configurations, the one or more alerts can be presented to the user in a sort based on the allocated priority. Additionally, risk mitigation factors are categorizable as at least one or more of good, bad, and neutral. Moreover, in at least some aspects, the summary is displayed on an electronic device screen and further wherein the summary is displayed with one or more of each of videos, images, and tables. Additionally, the step of evaluating can further comprise evaluating one or more patient specific parameters, in at least some situations, the one or more patient specific parameters is one or more parameter selected from the group comprising: demographics, height, weight physical measurements, health history, symptoms, neurological exam results, co-morbidities.
Yet another aspect of the disclosure is directed to a system for evaluating kinematic data received from a patient. The system comprises: an imaging system adapted to capture one or more images of a target joint from a patient; a modeler adapted to provide a model of a target biomechanical behavior for the target joint; a comparer adapted to compare the one or more images of the target joint with the computer implemented model and generate resulting image. The system can include a communication network through which various components of the system communicate. The system can further comprising one or more of a computer, a smart phone, and a tablet. Additionally, the system of claim can further include a database of kinematic data. The database of kinematic data can be from one or more patients. Additionally, a results viewer can be provided.
In still another aspect of the disclosure, a system for obtaining kinematic data from a patient is provided which comprises: an imaging system adapted to capture one or more images of a target joint from a patient; an apparatus for measuring joint motion comprising, a passive motion device adapted and configured to continuously move a joint of the subject through a range of motion, the passive motion device further comprising, a platform base, and a passive motion platform further comprising a static platform connected to an upper surface of the platform base, a movable platform connected to at least one of the static platform or an upper surface of the platform base, wherein the static platform is adjacent the movable platform wherein movement of the movable platform is achieved in operation by a motor in communication with the moveable platform, and an imaging device adapted and configured to image the joint of the subject during the motion of the passive motion device, a comparer adapted to compare the one or more images of the target joint with the computer implemented model. The system can include a communication network through which various components of the system communicate. The system can further comprising one or more of a computer, a smart phone, and a tablet. Additionally, the system of claim can further include a database of kinematic data. The database of kinematic data can be from one or more patients. Additionally, a results viewer can be provided.
Yet another aspect of the disclosure is directed to a surgical system comprising, an imaging system adapted to capture one or more images of a target joint from a patient; an apparatus for measuring joint motion comprising, a passive motion device adapted and configured to continuously move a joint of the subject through a range of motion, the passive motion device further comprising, a platform base, and a passive motion platform further comprising a static platform connected to an upper surface of the platform base, a movable platform connected to at least one of the static platform or an upper surface of the platform base, wherein the static platform is adjacent the movable platform wherein movement of the movable platform is achieved in operation by a motor in communication with the moveable platform, and an imaging device adapted and configured to image the joint of the subject during the motion of the passive motion device; and a device having a plurality of articulating arms having at least two articulation joints, the articulating arms being adapted to be inserted into an operative space and further adapted to controllably articulate inside the operative space, with at least three degrees of freedom of movement, at least one access port adapted to receive the articulating arms, and a controller adapted to control the articulation of the articulating arms inside the operative space to perform a surgical procedure. The system can include a communication network through which various components of the system communicate. The system can further comprising one or more of a computer, a smart phone, and a tablet. Additionally, the system of claim can further include a database of kinematic data. The database of kinematic data cast be from one or more patients. Additionally, a results viewer can be provided.
An aspect of the disclosure is directed to a method for computer-assisted analysis of kinematic data. Methods comprise: encoding a kinematic evaluation algorithm as one or more decision trees, each decision tree further comprising, one or more decision points comprising one or more questions; and one or more termination points, providing one or more images for a patient from an imaging system; initiating an evaluation by identifying one or more proposed procedures for the patient; evaluating the proposed procedure applied to the one or more images from the imaging system according to the algorithm; comparing the evaluation of the proposed procedure to a user profile; and providing a summary of one or more alerts for the one or more proposed procedures based on the user profile and the one or more patient images. Additionally the method can be performed on a communication network, such as the Internet or an intranet using wired and wireless capability. Additional method steps can include, creating a user profile prior to the step of providing one or more images from an imaging system wherein the step or creating further comprises identifying one or more procedures of interest for the user, creating one or more alerts for the one or more procedures of interest based on a user preference, wherein the alerts include one or more kinematic risk factors and one or more kinematic mitigation factors. In at least some instances, one or more alerts can be issued based on one or more threshold limits set by the user. Users can also change the one or mote threshold limits either at a mail profile (thus impacting all cases or all future cases evaluated) or for a specific case. Additionally, the summary is provided to the user by a results viewer. Additionally, the method can include comparing the evaluation of the proposed procedure to the updated one or more threshold limits and providing an updated summary of one or more alerts for the one or more proposed procedures. Moreover, the one or more alerts are allocated a priority and further wherein the one or more alerts are sorted based on the allocated priority. In some aspects, the risk mitigation factors are categorizable as at least one or more of good, bad, and neutral. Additionally, the summary is displayed on an electronic device screen and further wherein the summary is displayed with one or more of each of videos, images, and tables. The step of evaluating can further comprise evaluating one or more patient specific parameters. Suitable patient parameters include, for example, one or more parameter selected from the group comprising; demographics, height, weight, physical measurements, health history, symptoms, neurological exam results, co-morbidities.
Another aspect of the disclosure is directed to a method for computer-assisted analysis of kinematic data where the method comprises; aggregating kinematic data from two or more patients into a database; encoding a kinematic evaluation algorithm as one or more decision trees, each decision tree further comprising, one or more decision points comprising one or more questions; and one or more termination points, providing one or more images for a patient from an imaging system according to the algorithm, initiating an evaluation by identifying one or more proposed procedures for the patient; evaluating the proposed procedure applied to the one or more images from the imaging system and the database of aggregated data; comparing the evaluation of the proposed procedure to a user profile, and providing a summary of one or more alerts for the one or more proposed procedures based on the user profile and the one or more patient images. Additionally the method can be performed on a communication network, such as the Internet or an intranet using wired and wireless capability. Additional method steps can include, creating a user profile prior to the step of providing one or more images from an imaging system wherein the step of creating further comprises identifying one or more procedures of interest for the user, creating one or more alerts for the one or more procedures of interest based on a user preference, wherein the alerts include one or more kinematic risk factors and one or more kinematic mitigation factors. In at least some instances, one or more alerts can be issued based on one or more threshold limits set by the user. Users can also change the one or more threshold limits either at a mail profile (thus impacting all cases or all future cases evaluated) or for a specific case. Additionally, the summary is provided to the user by a results viewer. Additionally, the method can include comparing the evaluation of the proposed procedure to the updated one or more threshold limits and providing an updated summary of one or more alerts for the one or more proposed procedures. Moreover, the one or more alerts are allocated a priority and further wherein the one or more alerts are sorted based on the allocated priority. In some aspects, the risk mitigation factors are categorizable as at least one or more of good, bad, and neutral. Additionally, the summary is displayed on an electronic device screen and further wherein the summary is displayed with one or more of each of videos, images, and tables. The step of evaluating can further comprise evaluating one or more patient specific parameters. Suitable patient parameters include, for example, one or more parameter selected from the group comprising: demographics, height, weight, physical measurements, health history, symptoms, neurological exam results, co-morbidities.
Still another aspect of the disclosure is directed to a system for evaluating kinematic data from a patient. A suitable system comprises, an imaging system adapted to capture one or more images of a target joint from a patient; a modeler adapted to provide a model of a target biomechanical behavior for the target joint; a comparer adapted to compare the one or more images of the target joint with the computer implemented model and generate resulting image. The system can further be configured to operate on or in conjunction with a communication network, such as the Internet or an intranet using wired and wireless capability. Additionally, the system can employ one or more of a computer, a smart phone, and a tablet. Additionally, the system can create, access, and/or maintain a database of kinematic data. A results viewer can also be provided.
Yet another aspect of the disclosure is directed to a system for obtaining kinematic data from a patient wherein the system comprises: an imaging system adapted to capture one or more images of a target joint from a patient; an apparatus for measuring joint motion comprising a passive motion device adapted and configured to continuously move a joint of the subject through a range of motion, the passive motion device further comprising, a platform base, and a passive motion platform further comprising a static platform connected to an upper surface of the platform base, a movable platform connected to at least one of the static platform or an upper surface of the platform base, wherein the static platform is adjacent the movable platform wherein movement of the movable platform is achieved in operation by a motor in communication with the moveable platform and an imaging device adapted and configured to image the joint of the subject during the motion of the passive motion device a comparer adapted to compare the one or more images of the target joint with the computer implemented model. The system can further be configured to operate on or in conjunction with a communication network, such as the Internet or an intranet using wired and wireless capability. Additionally, the system can employ one or more of a computer, a smart phone, and a tablet. Additionally, the system can create, access, and/or maintain a database of kinematic data. A results viewer can also be provided.
Another aspect of the disclosure is directed to a surgical system. The surgical system comprises, for example, an imaging system adapted to capture one or more images of a target joint from a patient; an apparatus for measuring joint motion comprising, a passive motion device adapted and configured to continuously move a joint of the subject through a range of motion, the passive motion device further comprising, a platform base, and a passive motion platform further comprising a static platform connected to an upper surface of the platform base, a movable platform connected to at least one of the static platform or an upper surface of the platform base, wherein the static platform is adjacent the movable platform wherein movement of the movable platform is achieved in operation by a motor in communication with the moveable platform, and an imaging device adapted and configured to image the joint of the subject during the motion of the passive motion device; and a device having a plurality of articulating arms having at least two articulation joints, the articulating arms being adapted to be inserted into an operative space and further adapted to controllably articulate inside the operative space, with at least three degrees of freedom of movement, at least one access port adapted to receive the articulating arms, and a controller adapted to control the articulation of the articulating arms inside the operative space to perform a surgical procedure. The surgical system can further be configured to operate on or in conjunction with a communication network, such as the Internet or an intranet using wired and wireless capability. Additionally, the surgical system can employ one or more of a computer, a smart phone, and a tablet. Additionally, the surgical system can create, access, and/or maintain a database of kinematic data. A results viewer can also be provided.
An additional aspect of the disclosure is directed to an imaging system comprising: a motion device for continuously moving a mammalian joint; an imaging device mounted to a free floating, ballasted vertical plane, wherein the imaging device is moveable relative to the motion device during use to maintain a target anatomy within a targeted field of view; and a connector adapted to connect the imaging device to the motion device such that the imaging device and motion device move together when activated. One or more actuators can also be provided that are in communication with the processing system and adapted to reposition the imaging device in response to the instruction. Additionally, a collimator cars be included. In some configurations, the system comprises one or more motion sensors positionable on a patient and in communication with one or more of the imaging device and one or more recording sensors. In still other configurations, a processing system for processing information from the one or more motion sensors to generate an instruction is provided. Additionally, one or more actuators in communication with the processing system and adapted to reposition the imaging device and motion device in response to an instruction can be provided. In some configurations, the instruction is at least one of automatically generated, semi-automatically generated, or manually generated, or combinations thereof. Moreover, the connector can be a connection rod.
INCORPORATION BY REFERENCEAll publications, patents, and patent applications mentioned in this specification are herein incorporated by reference to the same extent as if each individual publication, patent, or patent application was specifically and individually indicated to be incorporated by reference.
The novel features of the invention are set forth with particularity in the appended claims. A better understanding of the features and advantages of the present invention will be obtained by reference to the following detailed description that sets forth illustrative embodiments, in which the principles of the invention are utilized, and the accompanying drawings of which:
In order to understand the configurability, adaptability, and operational aspects of the systems, methods and devices disclosed herein, it is helpful to understand the anatomical references of the body 50 with respect to which the position and operation of the devices, and components thereof, are described. As shown in
For purposes of illustration, the devices and methods of the disclosure are described below with reference to the spine of the human body. However, as will be appreciation by those skilled in the art, the devices and methods can be employed to address any effected bone or joint, including, for example, the hip, the knee, the ankle, the wrist, the elbow, and the shoulder. Additionally, the devices and methods can also be employed with any mammal.
II. Competing SystemsThe systems and methods described herein rely on a variety of computer systems, networks and/or digital devices for operation. In order to fully appreciate how the system operates an understanding of suitable computing systems is useful. The systems and methods disclosed herein are enabled as a result of application via a suitable computing system.
As will be appreciated by those skilled in the art, a computer readable medium stores computer data, which data can include computer program code that is executable by a computer, in machine readable form. By way of example, and not limitation, a computer readable medium may comprise computer readable storage media, for tangible or fixed storage of data, or communication media for transient interpretation of code-containing signals. Computes readable storage media, as used herein, refers to physical or tangible storage (as opposed to signals) and includes without limitation volatile and non-volatile, removable and non-removable storage media implemented it any method oi technology for the tangible storage of information such as computer-readable instructions, data structures, program modules or other data. Computer readable storage media includes but is not limited to RAM, ROM, EPROM, EEPROM, flash memory or other solid state memory technology CD-ROM, DVD, or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other physical or material medium which can be used to tangibly store the desired information or data or instructions and winch can be accessed by a computer or processor
In operation, the CPU 102 fetches, decodes, and executes instructions, and transfers information to and from other resources via the computer's main data-transfer path, system bus 140. Such a system bus connects the components in the computing system 100 and defines the medium for data exchange. Memory devices coupled to the system bus 140 include random access memory (RAM) 124 and read only memory (ROM) 126. Such memories include circuitry that allows information to be stored and retrieved. The ROMs 126 generally contain stored data that cannot be modified. Data stored in the RAM 124 can be read or changed by CPU 102 or other hardware devices. Access to the RAM 124 and/or ROM 126 may be controlled by memory controller 122. The memory controller 122 may provide an address translation function that translates virtual addresses into physical addresses as instructions are executed.
In addition, the computing system 100 can contain peripherals controller 128 responsible for communicating instructions from the CPU 102 to peripherals, such as, printer 142, keyboard 118, mouse 120, and data storage drive 143. Display 108, which is controlled by a display controller 163, is used to display visual output generated by the computing system 100. Such visual output may include text, graphics, animated graphics, and video. The display controller 134 includes electronic components required to generate a video signal that is sent to display 108. Further, the computing system 100 can contain network adaptor 136 which may be used to connect the computing system 100 to an external communications network 132.
III. Networks an Internet ProtocolAs is well understood by those skilled in the art, the Internet is a worldwide network of computer networks. Today, the Internet is a public and self-sustaining network that is available to many millions of users. The Internet uses a set of communication protocols called TCP/IP (i.e., Transmission Control Protocol/Internet Protocol) to connect hosts. The Internet has a communications infrastructure known as the Internet backbone. Access to the Internet backbone is largely controlled by Internet Service Providers (ISPs) that resell access to corporations and individuals.
The Internet Protocol (IP) enables data to be sent from one device (e.g., a phone, a Personal Digital Assistant (PDA), a computer, etc.) to another device on a network. There are a variety of versions of IP today, including, e.g., IPv4, IPv6, etc. Other IPs are no doubt available and will continue to become available in the future, any of which can be used without departing from the scope of the disclosure. Each host device on the network has at least one IP address that is its own unique identifier and acts as a connectionless protocol. The connection between end points during a communication is not continuous. When a user sends or receives data or messages, the data or messages are divided into components known as packets. Every packet is treated as an independent unit of data and routed to its final destination—but not necessarily via the same path.
The Open System Interconnection (OSI) model was established to standardize transmission between points over the Internet or other networks. The OSI model separates the communications processes between two points in a network into seven stacked layers, with each layer adding its own set of functions. Each device handles a message so that there is a downward flow through each layer at a sending end point and an upward flow through the layers at a receiving end point. The programming and/or hardware that provides the seven layers of function is typically a combination of device operating systems, application software, TCP/IP and/or other transport and network protocols, and other software and hardware.
Typically, the top four layers are used when a message passes from or to a user and the bottom three layers are used when a message passes through a device (e.g., an IP host device). An IP host is any device on the network that is capable of transmitting and receiving IP packets, such as a server, a router or a workstation. Messages destined for some other host are not passed up to the upper layers but are forwarded to the other host. The layers of the OSI model are listed below. Layer 7 (i.e., the application layer) is a layer at which, e.g., communication partners are identified, quality of service is identified, user authentication and privacy are considered, constraints on data syntax are identified, etc. Layer 6 (i.e., the presentation layer) is a layer that, e.g., converts incoming and outgoing data from one presentation format to another, etc. Layer 5 (i.e., the session layer) is a layer that, e.g., sets up, coordinates, and terminates conversations, exchanges and dialogs between the applications, etc. Layer-4 (i.e., the transport layer) is a layer that, e.g., manages end-to-end control and error-checking, etc. Layer-3 (i.e., the network layers is a layer that, e.g., handles routing and forwarding, etc. Layer-2 (i.e., the data-link layer) is a layer that, e.g., provides synchronization for the physical level, does bit-stuffing and furnishes transmission protocol knowledge and management, etc. The Institute of Electrical and Electronics Engineers (IEEE) sub-divides the data-link layer into two further sub-layers, the MAC (Media Access Control) layer that controls the data transfer to and from the physical layer and the LLC (Logical Link Control) layer that interfaces with the network layer and interprets commands and performs error recovery. Layer 1 (i.e., the physical layer) is a layer that, e.g., conveys the bit stream through the network at the physical level. The IEEE sub-divides the physical layer into the PLCP (Physical Layer Convergence Procedure) sub-layer and the PMD (Physical Medium Dependent) sub-layer.
IV. Wireless NetworksWireless networks can incorporate a variety of types of mobile devices, such as, e.g., cellular and wireless telephones, PCs (personal computers), laptop computer, wearable computers, cordless phones, pagers, headsets, printers, PDAs, etc. For example, mobile devices may include digital systems to secure last wireless transmissions of voice and/or data. Typical mobile devices include some or all of the following components: a transceiver (for example a transmitter and a receiver, including a single chip transceiver with an integrated transmitter, receiver and, if desired, other functions); an antenna, a processor; display; one or more audio transducers (for example, a speaker or a microphone as in devices for audio communications); electromagnetic data storage (such as ROM, RAM digital data storage, etc., such as in devices where data processing is provided); memory; flash memory; and/or a full chip set or integrated circuit; interfaces (such as universal serial bus (USB), coder-decoder (CODEC), universal asynchronous receiver-transmitter (UART), phase-change memory (PCM), etc.). Other components can be provided without departing from the scope of the disclosure.
Wireless LANs (WLANs) in winch a mobile uses can connect to a local area network (LAN) through a wireless connection may be employed for wireless communications. Wireless communications can include communications that propagate via electromagnetic waves, such as light, infrared, radio, and microwave. There are a variety of WLAN standards that currently exist, such as Bluetooth®, IEEE 802.11, and the obsolete HomeRF.
By way of example, Bluetooth products may be used to provide links between mobile computers, mobile phones, portable handheld devices, personal digital assistants (PDAs), and other mobile devices and connectivity to the Internet. Bluetooth is a computing and telecommunications industry specification that details how mobile devices can easily interconnect with each other and with non-mobile devices using a short-range wireless connection. Bluetooth creates a digital wireless protocol to address end-user problems arising from the proliferation of various mobile devices that need to keep data synchronized and consistent from one device to another, thereby allowing equipment from different vendors to work seamlessly together.
An IEEE standard, IEEE 802.11, specifies technologies for wireless LANs and devices Using 802.11, wireless networking may be accomplished with each single base station supporting several devices. In some examples, devices may come pre-equipped with wireless hardware or a user may install a separate piece of hardware, such as a card, that may include an antenna. By way of example, devices used in 802.11 typically include three notable elements, whether or not the device is an access point (AP), a mobile station (STA), a bridge, a personal computing memory card International Association (PCMCIA) card (or PC card) or another device a radio transceiver; an antenna; and a MAC (Media Access Control) layer that controls packet flow between points in a network.
In addition Multiple Interface Devices (MIDs) may be utilized in some wireless networks MIDs may contain two independent network interfaces, such as a Bluetooth interface and an 802.11 interface, thus allowing the MID to participate on two separate networks as well as to interface with Bluetooth devices. The MID may have an IP address and a common IP (network) name associated with the IP address.
Wireless network devices may include, but are not limited to Bluetooth devices, WiMAX (Worldwide Interoperability for Microwave Access), Multiple Interface Devices (MIDs), 802.11x devices (IEEE 802.11 devices including, 802.11a, 802.11b and 802.11g devices), HomeRF (Home Radio Frequency) devices, Wi-Fi (Wireless Fidelity) devices, GPRS (General Packet Radio Service) devices, 3 G cellular devices 2.5 G cellular devices, GSM (Global System for Mobile Communications) devices, EDGE (Enhanced Data for GSM Evolution) devices, TDMA type (Time Division Multiple Access) devices, or CDMA type (Code Division Multiple Access) devices, including CDMA2000. Each network device may contain addresses of varying types including but not limited to an IP address, a Bluetooth Device Address, a Bluetooth Common Name, a Bluetooth IP address, a Bluetooth IP Common Name, an 802.11 IP Address an 802.11 IP common Name, or an IEEE MAC address.
Wireless networks can also involve methods and protocols found in, Mobile IP (Internet Protocol) systems, in PCS systems, and in other mobile network systems. With respect to Mobile IP, this involves a standard communications protocol created by the Internet Engineering Task Force (IETF). With Mobile IP, mobile device users can move across networks while maintaining then IP Address assigned once. See Request for Comments (RFC) 3344. NB: RFCs are formal documents of the Internet Engineering Task Force (IETF). Mobile IP enhances Internet Protocol (IP) and adds a mechanism to forward Internet traffic to mobile devices when connecting outside their home network. Mobile IP assigns each mobile node a home address on its home network and a care-of-address (CoA) that identifies the current location of the device within a network and its subnets. When a device is moved to a different network, it receives a new care-of address. A mobility agent on the home network can associate each home address with its care-of address. The mobile node can send the home agent a binding update each time it changes its care-of address using Internet Control Message Protocol (ICMP).
In basic IP routing (e.g., outside mobile IP), routing mechanisms rely on the assumptions that each network node has a constant attachment point to the Internet and that each node's IP address identifies the network link it is attached to. In this document, the terminology “node” includes a connection point, which can include a redistribution point or an end point for data transmissions, and which can recognize, process and/or forward communications to other nodes. For example, Internet routers can look at an IP address prefix or the like identifying a device's network. Then, at a network level, routers can look at a set of bits identifying a particular subnet. Then, at a subnet level, routers can look at a set of bits identifying a particular device. With typical mobile IP communications, if a user disconnects a mobile device from the Internet and tries to reconnect it at a new subnet, then the device has to be reconfigured with a new IP address, a proper netmask and a default router. Otherwise, routing protocols would not be able to deliver the packets properly.
In IEEE P802.21/D.01.09, September 2006 entitled Draft IEEE Standard for Local and Metropolitan Area Networks: Media Independent Handover Services, among other things, the document specifies 802 media access-independent mechanisms that optimize handovers between 802 systems and cellular systems. The IEEE 802.21 standard defines extensible media access independent mechanisms that enable the optimization of handovers between heterogeneous 802 systems and may facilitate handovers between 802 systems and cellular systems. “The scope of the IEEE 802.21 (Media Independent Handover) standard is to develop a specification that provides link layer intelligence and other related network information to upper layers to optimize handovers between heterogeneous media. This includes links specified by 3GPP, 3GPP2 and both wired and wireless media in the IEEE 802 family of standards. Note, in this document, unless otherwise noted, “media” refers to method mode of accessing a telecommunication system (e.g. cable, radio, satellite, etc.), as opposed to sensory aspects of communication (e.g. audio, video, etc.). “See 1.1 of I.E.E.E. P802.21/D.01.09, September 2006, entitled Draft IEEE Standard for Local and Metropolitan Area Networks: Media Independent Handover Services, the entire contents of which document is incorporated herein into and as part of this patent application. Other IEEE, or other such standards on protocols can be relied on as appropriate or desirable.
Processor 202 may include any type of conventional processor or microprocessor that interprets an executes instructions. Local memory 244 may include a random access memory (RAM) or another type of dynamic storage device that stores information and instructions for execution by processor 202 and/or a read only memory (ROM) or another type of static storage device that stores static information and instructions for use by processor 202.
Input unit 246 may include one or more conventional mechanisms that permit an operator to input information to a server 110. such as a keyboard 118, a mouse 120 (shown in
Memory interface 222 may include a memory controller 122. Memory interface 222 may connect to one or more memory devices, such as one or more local disks 274, and control the reading and writing of chunk data to/from local disks 276. Memory interface 222 may access chunk data using a chunk handle and a byte range within that chunk.
Processor 302 max include any type of conventional processor or microprocessor that interprets and executes instructions. Main memory 344 may include a RAM or another type of dynamic storage device that stores information and instructions for execution by processor 302. ROM 326 may include a conventional ROM device or another type of static storage device that stores static information and instructions for use by processor 302. Storage device 378 may include a magnetic and/or optical recording medium and its corresponding drive. For example, storage device 378 may include one or more local disks that provide persistent storage.
Input devices 346 used to achieve the desired technical effect and transformation may include one or more conventional mechanisms that permit an operator to input information to the master system 374, such as a keyboard 118, a mouse 120, (shown in
Master system 376 used to achieve the desired technical effect and transformation may maintain the system metadata within one or more computer readable mediums, such as main memory 344 and/or storage device.
The computer implemented system provides a storage and delivery base which allows users to exchange services and information openly on the Internet used to achieve the desired technical effect and transformation. A user will be enabled to operate as both a consumer and producer of any and all digital content or information through one or more master system servers.
A user executes a browser to view digital content items and can connect to the front end server via a network which is typically the Internet, but can also be any network, including but not limited to any combination of a LAN, a MAN, a WAN, a mobile, wired or wireless network, a private network, or a virtual private network. As will be understood, a very large numbers (e.g., millions) of users are supported and can be in communication with the website at any time. The uses may include a variety of different computing devices. Examples of user devices include, but are not limited to, personal computers, digital assistants, personal digital assistants, cellular phones, mobile phones, smart phones or laptop computers.
The browser can include any application that allows users to access web pages on the World Wide Web. Suitable applications include, but are not limited to, Microsoft Internet Explorer®, Netscape Navigator®, Mozilla® Firefox, Apple® Safari or any application adapted to allow access to web pages on the World Wide Web. The browser can also include a video player (e.g., Flash™ from Adobe Systems, Inc.), or any other player adapted for the video file formats used in the video hosting website. Alternatively, videos can be accessed by a standalone program separate from the browser. A user can access a video from the website by, for example, browsing a catalog of digital content, conducting searches on keywords, reviewing aggregate lists from other users or the system administrator (e.g., collections of videos forming channels), or viewing digital content associated with particular user groups (e.g., communities).
VI. Computer Network EnvironmentComputing system 100, described above, can be deployed as part of a computer network used to achieve the desired technical effect and transformation. In general, the above description for computing environments applies to both server computers and client computers deployed in a network environment.
In operation, a user (not shown) may interact with a computing application running on a client competing environment to obtain desired data and/of computing applications. The data and/or computing applications may be stored on server computing environment 400 and communicated to cooperating users through client computing environments over exemplary communications network 450. The computing applications, described in more detail below, are used to achieve the desired technical effect and transformation set forth. A participating user may request access to specific data and applications housed in whole or in part on server computing environment 400. These data may be communicated between client computing environments and server computing environments for processing and storage. Server computing environment 400 may host computing applications, processes and applets for the generation, authentication, encryption, and communication data and applications and may cooperate with other server computing environments (not shown), third party service providers (not shown), network attached storage (NAS) and storage area networks (SAN) to realize application/data transactions.
VII. Media Independent Information ServiceThe Media Independent Information Service (MIIS) provides a framework and corresponding mechanisms by which an MIHF entity may discover and obtain network information existing within a geographical area to facilitate handovers. Additionally or alternatively, neighboring network information discovered and obtained by this framework and mechanisms can also be used in conjunction with user and network operator policies for optimum initial network selection and access (attachment), or network re-selection in idle mode.
MIIS primarily provides a set of information elements (IEs), the information structure and its representation, and a query/response type of mechanism for information transfer. The information can be present in some information server from which, e.g., an MIHF in the Mobile Node (MN) can access it.
Depending on the type of mobility, support for different types of information elements may be necessary for performing handovers, MIIS provides the capability for obtaining information about lower layers such as neighbor maps and other link layer parameters as well as information about available higher layer services such as Internet connectivity.
MIIS provides a generic mechanism to allow a service provides and a mobile user to exchange information on different handover candidate access networks. The handover candidate information can include different access technologies such as IEEE 802 networks, 3GPP networks and 3GPP2 networks. The MIIS also allows this collective information to be accessed from any single network. For example, by using an IEEE 802.11 access network, it can be possible to get information not only about all other IEEE 802 based networks in a particular region but also about 3GPP and 3GPP2 networks. Similarly, using, e.g., a 3GPP2 interface, it can be possible to get access to information about all IEEE 802 and 3GPP networks in a given region. This capability allows the MN to use its currently active access network and inquire about other available access networks in a geographical region. Thus, a MN is freed from the burden of powering up each of its individual radios and establishing network connectivity for the purpose of retrieving helerogeneous network information. MIIS enables this functionality across all available access networks by providing a uniform way to retrieve heterogeneous network information in any geographical area.
VIII. Software Programs Implementable in the Computing and Network Environments to Achieve a Desired Technical Effect or Transformation A. Clinical Data Reporting Software InterfaceA clinical data reporting software interface comprises a communications network, communication medium, input and output devices, computing application and software application that communicate and compute data through a process of initialization by user, interpolation of results, and comparison with aggregated data.
The clinical data reporting software interface integrates user preferences for procedures of interest along with associated risk factors and risk mitigation factors to facilitate interpretation of patient specific results for specific kinematic dysfunctions, at each spine level. A user profile is also created during the initialization step and generally does not change from patient-to-patient tor a particular user, however this profile is changeable by the user.
The process of analyzing and interpreting results within the clinical data reporting software interface is performed each time a subject (patient) undergoes kinematic testing. The results for each subject tested indicates one or more specific kinematic dysfunctions that have been detected. In the context of the spine, the one or more dysfunctions can be provided at each spine level. The combination of risk and risk mitigation factors are defined as specific alerts in the reporting system that can be presented to the user (surgeon) for evaluation of changes to a planned procedure for a particular patient.
Additionally, users can view kinematic testing results via the results viewer. Moreover, the results viewer allows for multiple types of results viewing, including the viewing of moving video images along with templates, graph, and numeric data, as depicted in the screen shot 740 presented as
The results viewer also enables a user to interact with quantitative data regarding the detection of specific kinematic dysfunctions.
As shown in
The clinical data reporting software system provides a process of creating a centralized aggregate database allowing for data input, viewing and querying that can be used by the user to compare potential clinical outcomes of the subjects.
For patients who get tested, there is an additional process that allows the user (surgeon/clinician) to input additional data, then view data regarding potential clinical outcomes of procedures being considered by querying the aggregated database. Kinematic testing results for each patient, which indicates the specific kinematic dysfunction that has been detected, for example, at each spine level 820 communicates with a query aggregated database 840 to determine outcomes for patients matched based on kinematic presentation, additional data collected on the patient, and the procedure being considered. The user can change the list of procedures being considered 832 which changes the list of specific procedures being considered for a specific patient 830 which in turn impacts the list of alerts generated for each procedure being considered 826. The list of alerts 826 also factors in the user profile from the initialization process 822. When alerts are presented to the user 828 it is possible for the clinician to change threshold limits for detecting kinematic dysfunctions 824, which can impact the query aggregated database 840. Additional data may also be collected from the patient 834 which can then be transmitted to the centralized database 838 and presented to the user 836.
As an example, the clinical data reporting software system interprets kinematic results of subjects that were tested in a standing (active) or lying down (passive) position, which allows for isolating the muscle or load contribution, generating and/or interlacing with a computer model of biomechanics specific to a given subject. These computer models of biomechanics usually include anatomical and functional models, and by inputting patient specific data along with measurements of how kinematics were different between loaded active and unloaded passive bending, it can be possible to produce explanatory hypotheses that can explain the observed kinematics based on the anatomical and functional models.
One skilled in the art will appreciate that only one embodiment of the patient data recording software interface is represented in the above description, and there are many other alternative embodiments of different joints other than the spine, different mammalian animals other than humans, different embodiments and designs other than those presented to accomplish the essential function described herein.
B. Surgical Navigation and Patient PositioningSystems and methods are also contemplated for registering, for example, spinal motion data to an instrument-supported therapeutic procedure, such when using surgical planning, assistance and/or surgical navigation systems. The systems and methods use the platform disclosed in
The therapeutic procedure can comprise of instrumentation that facilitates a predetermined therapeutic outcome. For example, spinal motion and dura-vertebral articulation can be determined by a kinematic measuring system. The motion data can then be transferred and registered to an automated or mechanical device. Suitable instruments include a surgical navigation system, which is automated or manually operated, or combinations thereof. Surgical navigation systems include, for example, StealthStation® iNAV™ or iOR™ or Treon™ or TRIA™, available from Medtronic or PiGalileo™ Computer-Assisted Orthopedic Surgery System available from Plus Orthopedics. Moreover, the therapeutic procedure may or may not include surgical implants, such as where a therapy is targeted at matching pre-determined outcome to therapy. Inter-vertebral motion data can also be acquired manually or via an automated system. The system can also be adapted and configured to acquire both static and dynamic parameters. As will be appreciated by those skilled in the art, data to be transferred can be manually or automatically transferred. An optimal position and orientation outcome of the spine can also be determined by the system and transferred within the system or to another system or user. In at least some embodiments, the such surgical navigation system operates such that it can maintain orientation and position in up to 6 degrees of freedom; moving up and down (heaving); moving left and right (swaying); moving forward and backward (surging); tilting forward and backward (pitching); turning left and right (yawing), and tilting side to side (rolling).
A variety of implants, such as spinal implants, can be used with the system, including devices that fuse the spine or facilitate motion preservation. Such implants can have pre-determined optimal specifications for position and orientation
The surgical navigation system 1050 may also then connect with an operating table/patient positioner 1052. This operating table/patient positioner 1052 is then able to communicate data to and from the surgical navigation system (to: control data to control to position of the patient and other data; from: data regarding position of the patient, and other data), which in turn is in communication with one or more of the various components (e.g., computer model, kinematic testing results, specific procedures being considered, surgical scenario planning, clinical databases, data regarding specific contemplated implants, and/or kinematic testing system). This operating table/patient positioner 1052 can then be used to put the patient into a specific posture during a surgical operation based on parameters determined via the surgical navigation system 1050 or any of the components with which the surgical navigation system 1050 is in communication. A feedback loop is also contemplated, wherein real time kinematic testing system and other testing modalities to assess position and function of anatomy and instrumentation can be collected from the patient 1053 and is communicated to the surgical navigation system 1050, which can then utilize this data to adjust either parameters within the surgical navigation system 1050, or parameters within the operating table/patient positioner 1052. Such real time kinematic testing systems 1054 could include imaging modalities, position sensors, motion sensors, electromyography data collection devices, and a host of other data collection devices. In an alternative embodiment, the operating table/patient positioner 1052 can be connected directly to the various components of the system (e.g., computer model, kinematic testing results, specific procedures being considered, surgical scenario planning, clinical databases, data regarding specific contemplated implants, and/or kinematic testing system) without the use of a surgical navigation system (for such a configuration, all of the connections going into the surgical navigation system 1050 would instead connect directly to the patient positioner 1052, thus bypassing the surgical navigation system 1050).
The inputs, information and reports can be transmitted through either a direct wire-based electronic connection between the two or more components, or through a wireless connection, and can be of the type that is derived from computer programming or from operator, user or subject input, or from a combination of computer programmed information plus operator, user and/or subject input.
C. Imaging System Moveable within a Vertical Plane
The imaging system moveable within a vertical plane is an apparatus providing input image data for the measurement system that assists with imaging during joint operation it consists of a medical imaging system mounted to a free floating, ballasted vertical plane, so that the medical imaging system can be moved in tandem with the motion of the joint to keep joint anatomy within a field of view (for example keeping a knee in a field of view as a live human testing subject is walking). It can be operated in a manual or automatic mode, as further described below.
The image data can be transmitted through either a direct wire-based electronic connection between the two or more components, or through a wireless connection, and can be of the type that is derived from computer programming or from operator, user or subject input, or from a combination of computer programmed information plus operator, user and/or subject input. One skilled in the art will appreciate that there are many shapes, sizes, and configurations of the imaging system moveable within a vertical plane required for various mammalian joints.
A collimator device 1713 may be optionally attached to either or both of the attachment arms 1701 and/or 1705 for use in the case of ionizing radiation based imaging modalities. This collimator device is intended to block the path of ionizing radiation for one or both of two purposes: (1) minimize the dose of absorbed radiation on the part of the patient, and (2) minimize “flare”, which can degrade the contrast of medical images and can occur when X-rays pass unimpeded from the source to the detector without first passing through the patient. This collimator device is composed of a leaded material or some other material wish sufficient density as to partially or completely block ionizing radiation from passing through it. Stationary collimator devices that do not adjust during imaging are not useful, as the field of interest within the imaging frame changes as the joint of interest is in operation during testing. Therefore the collimator device 1713 is intended to maintain a changing field of interest within the imaging frame as the position of the patient's anatomy changes as a function of normal joint operation, such that “flare” and radiation dose to the patient are both minimized while not obscuring any of the physiologic structures of interest. In one embodiment, the collimator connects to both attachment arms 1701 and 1705 according to
The apparatus can further be adapted and configured to keep a specific part of the patient's anatomy within the imaging field of interest during imaging. This can be accomplished by an imaging field adjustment mechanism capable of calculating the positional adjustments necessary to keep the joint of interest within and/or centered within the imaging field, then producing a movement between the support frame base 1717 and the support frame vertical member 1715, such that the specific part of the patient's anatomy is held within and/or centered within the field of imaging. In one embodiment, tins imaging field adjustment mechanism would function as follows: (1) while attached to the apparatus, the patient is moved to extreme position #1 of the motion sweep that is being studied; (2) the apparatus is positioned relative to the medical diagnostic device such that the anatomy of interest on the patient is centered in the field of image of the diagnostic device; (3) this relative position between the imaging device and the apparatus is recorded as extreme position #1; (4) the patient is then moved to extreme position #2 of the motion sweep that is being studied; (5) this relative portion between the imaging device and the apparatus is recorded as extreme position #2. Once these two extreme relative positions between the apparatus and medical diagnostic device have been recorded, the imaging field adjustment mechanism then affects a relative motion between the support frame base 1717 and the support frame vertical member 1715 from extreme position #1 to extreme position #2, and possibly back again, in such a way that this relative motion is synchronized with the motion sweep of the apparatus to hold a specific part of the patient's anatomy within and/or centered within the imaging field of interest. Furthermore, the calculation of motion between the support frame base 1717 and the support frame vertical member 1715 required to keep the anatomy of interest within the imaging field can be recorded and integrated into the computation of the range of motion of the specific joint of interest. In an alternative embodiment of the imaging field adjustment mechanism, an image centering marker as placed on the patient that denotes where the center of the imaging field should be positioned. The image centering marker interacts with the medical diagnostic device in such a way that the center of the imaging field always remains fixed on the image centering marker. So as to not interfere with the anatomy of interest, the Image centering marker does not have to be in the actual center of the imaging field, but instead in a position within the image that remains relatively fixed throughout the motion. Data encoding devices can be optionally attached to either of the attachment arms 1701 and 1705 and/or the patient and data to be transmitted directly to the medical images or other diagnostic formats. During operation of the device, there are several sets of data that can be generated by the operation of the motion control device or by the operation of other devices used during testing, such as the attachment mechanisms 1703 and 1707, or the medical diagnostic device. Such data could include: time synchronization data which is data indicating the exact point in time when the motion device begins and ends a tested motion sequence or a surgical step; the position of each or both of the attachment arms 1701 and 1705, which could be a goniometer measurement, a protractor measurement, or a measurement of the displacement of each attachment arms 1701 and 1705 relative to the starting position or relative to the attachment mechanisms 1703 and 1707; parameters associated with the actuators, such as the level of applied force, displacement, velocity, or other parameters; the weight applied to the attachment arms 1701 and 1705 by the patient at any given moment; the force applied by the subject on the attachment arms 1701 and 1705 at any given moment; the displacement, velocity, or other parameters associated with the imaging field adjustment mechanism, or any other measurement parameter that is relevant to the tested motion and that can be generated by, for example, sensors included within the motion control device or by an input from a data source external to the motion control device, such as the medical diagnostic device. The data encoding device may either be mechanical or digital devices that are capable of producing discernable analog or digital markings within the field of imaging that therefore get captured on the medical images resulting from the operation of the present disclosure (when the medical diagnostic device is a medical imaging device) that; (1) do not interfere with part of the field of imaging of interest for the prescribed diagnostic study, (2) can transmit data via the image that can be decoded at a later point in time such that all encoded data can be derived entirely through an analysis of each medical image. In one embodiment of the present disclosure using X-ray based fluoroscopy imaging, the data encoding device can be a radio-opaque protractor showing the angular displacement of the attachment arms 1701 and 1705, or alternatively could be a radio-opaque analogue needle-gauge to measure the current through the actuator at any point in time.
Different orientations of the diagnostic imaging system: The present disclosure contemplates a mechanism adapted and configured to perform diagnostic imaging of a joint where the field of imaging is fixed in space; however a diagnostic imaging system that does not have a field of imaging that is fixed in space could also be utilized. In such a case, the diagnostic imaging equipment would be operably moveable so that the field of imaging does not stay fixed in space, but instead would stay fixed with respect to: (1) the motion platform (2) a landmark on the subject, or (3) any trajectory defined by the operator.
While preferred embodiments of the present disclosure have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous variations, changes, and substitutions will now occur to those skilled in the art without departing from the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in practicing the invention. It is intended that the following claims define the scope of the invention and that methods and structures within the scope of these claims and their equivalents be covered thereby.
Claims
1. A spinal surgery position optimization system comprising a processor wherein the processor is configured to:
- receive one or more images of a spinal region generated by a medical imaging device;
- process measurements from the one or more images of a spatial relationship between vertebral bodies comprising a spine joint that is not being targeted for an implantation procedure, for one or more spine joints visible within an area of interest from the images;
- determine an optimal fixed spatial relationships between vertebral body endplates for one or more spine joints being targeted for a spinal fusion implantation procedure; and
- generate optimized position data for the vertebral body endplates.
Type: Application
Filed: Oct 10, 2017
Publication Date: May 3, 2018
Inventors: Adam DEITZ (Austin, TX), Richard K. GRANT (Sudbury, MA)
Application Number: 15/729,409
