Patents Assigned to Orthosensor
-
Patent number: 9839390Abstract: A prosthetic component suitable for long-term implantation is provided. The prosthetic component measures a parameter of the muscular-skeletal system is disclosed. The prosthetic component comprises a first structure having at least one support surface, a second structure having at least one feature configured to couple to bone, and at least one sensor. The prosthetic component is a housing for the at least one sensor and electronic circuitry. The electronic circuitry is hermetically sealed from an external environment. The at least one sensor couples to the support surface of the first structure. The support surface of the first structure is compliant. The first and second structure are coupled together housing the at least one sensor and electronic circuitry.Type: GrantFiled: January 13, 2014Date of Patent: December 12, 2017Assignee: Orthosensor Inc.Inventors: Marc Stein, Andrew Chase
-
Patent number: 9820678Abstract: A system is disclosed herein for providing a kinetic assessment and preparation of a prosthetic joint comprising one or more prosthetic components. The system comprises a prosthetic component including sensors and circuitry configured to measure load, position of load, and joint alignment. The system further includes a remote system for receiving, processing, and displaying quantitative measurements from the sensors. The kinetic assessment measures joint alignment under loading that will be similar to that of a final joint installation. The kinetic assessment can use trial or permanent prosthetic components. Furthermore, adjustments can be made to the applied load magnitude, position of load, and joint alignment by various means to fine-tune an installation. The kinetic assessment increases both performance and reliability of the installed joint by reducing error that is introduced by elements that load or modify the joint dynamics not taken into account by prior assessment methods.Type: GrantFiled: September 13, 2013Date of Patent: November 21, 2017Assignee: ORTHOSENSOR INCInventors: Marc Stein, Martin Roche
-
Patent number: 9757051Abstract: At least one embodiment is directed to a tracking system for the muscular-skeletal system. The tracking system can identify position and orientation. The tracking system can be attached to a device or integrated into a device. In one embodiment, the tracking system couples to a handheld tool. The handheld tool with the tracking system and one or more sensors can be used to generate tracking data of the tool location and trajectory while measuring parameters of the muscular-skeletal system at an identified location. The tracking system can be used in conjunction with a second tool to guide the second tool to the identified location of the first tool. The tracking system can guide the second tool along the same trajectory as the first tool. For example, the second tool can be used to install a prosthetic component at a predetermined location and a predetermined orientation. The tracking system can track hand movements of a surgeon holding the handheld tool within 1 millimeter over a path less than 5 meters.Type: GrantFiled: December 7, 2015Date of Patent: September 12, 2017Assignee: ORTHOSENSOR INC.Inventors: Marc Stein, Glen Vaughn
-
Publication number: 20170252187Abstract: An orthopedic measurement system is disclosed to measure leg alignment. The measurement system includes a tri-axial gyroscope configured to measure movement of a leg. The gyroscope is coupled to a tibia of the leg. For example, the gyroscope can be placed in an insert or tibial prosthetic component that couples to the tibia. The gyroscope is used to measure alignment relative to the mechanical axis of the leg. The leg alignment measurement is performed by putting the leg through a first leg movement and a second leg movement. The gyroscope outputs angular velocities on the axes the sensor is rotated about. The gyroscope is coupled to a computer that calculates the alignment of the leg relative to the mechanical axis from the gyroscope measurement data.Type: ApplicationFiled: March 3, 2017Publication date: September 7, 2017Applicant: Orthosensor IncInventors: Ryan M. Chapman, Doug W. Van Citters, Gordon Goodchild
-
Patent number: 9642571Abstract: A system and method for is provided for operation of an orthopedic system. The system includes a load sensor for converting an applied pressure associated with a force load on an anatomical joint, and an inertial sensing device configured to measure alignment. The inertial sensing device provides alignment measurement data to measure alignment. An ultrasonic transducer, MEMs microphone, electromagnets, optical elements, metallic objects or other transducers can be configured to convert or convey a physical movement to an electrical signal and support measurement of muscular-skeletal alignment. The load sensor can be used to measure load magnitude and position of load of an applied load by the muscular-skeletal system.Type: GrantFiled: December 2, 2015Date of Patent: May 9, 2017Assignee: ORTHOSENSOR INCInventors: Jason McIntosh, Martin Roche, Marc Boillot, Carlos Gil
-
Patent number: 9642676Abstract: A system and method is disclosed herein for measuring bone slope or tilt of a prepared bone surface of the muscular-skeletal system. The system comprises a three-axis accelerometer for measuring position, rotation, and tilt. In one embodiment, the three-axis accelerometer can be housed in a prosthetic component that couples to a prepared bone surface. The system further includes a remote system for receiving, processing, and displaying quantitative measurements from one or more sensors. A bone is placed in extension. The three-axis accelerometer is referenced to a bone landmark of the bone when the bone is in extension. The three-axis accelerometer is then coupled to the prepared bone surface with the bone in extension. The slope or tilt of the bone surface is measured. In the example, the slope or tilt of the bone surface corresponds to at least one surface of the prosthetic component attached thereto.Type: GrantFiled: September 13, 2013Date of Patent: May 9, 2017Assignee: ORTHOSENSOR INCInventors: Marc Stein, Martin Roche
-
Publication number: 20170119472Abstract: A spine measurement system comprises an optical measurement probe, one or more targets, a fluoroscope, and a remote station. A-P and lateral images of the spine are taken using the fluoroscope and provided to the remote station. The remote station includes computer vision that can identify endplates and pedicle screws in the spine. The computer vision in the remote station is further used to identify vertebra and bone landmarks of the spine. The remote station can generate quantitative measurement data such as Cobb angles and axial rotation of the spine from the fluoroscope images that correspond to the spine deformity. The optical measurement probe can send images of the spine with pedicle screw extenders extending from the pedicle screws to the remote station. The remotes station using computer vision can provide spine metrics in real-time by tracking position of the pedicle screw extenders.Type: ApplicationFiled: October 26, 2016Publication date: May 4, 2017Applicant: Orthosensor IncInventors: Erik Herrmann, Scott Clegg
-
Publication number: 20170119316Abstract: A spine measurement system comprises an optical measurement probe, one or more targets, a fluoroscope, and a remote station. A-P and lateral images of the spine are taken using the fluoroscope and provided to the remote station. The remote station includes computer vision that can identify endplates and pedicle screws in the spine. The computer vision in the remote station is further used to identify vertebra and bone landmarks of the spine. The remote station can generate quantitative measurement data such as Cobb angles and axial rotation of the spine from the fluoroscope images that correspond to the spine deformity. The optical measurement probe can send images of the spine with pedicle screw extenders extending from the pedicle screws to the remote station. The remotes station using computer vision can provide spine metrics in real-time by tracking position of the pedicle screw extenders.Type: ApplicationFiled: October 26, 2016Publication date: May 4, 2017Applicant: Orthosensor IncInventors: Erik Herrmann, Scott Clegg
-
Publication number: 20170119281Abstract: A spine measurement system comprising a camera, an encoded collar, and a remote station. A rod is shaped having one or more bends to modify a curvature of a spine. The encoded collar is coupled to the rod. The encoded collar includes a plurality of markings where each marking represents a rod position. The rod and encoded collar are in a field of view of the camera. The camera takes a number of images as the rod rotates at least 360 degrees. The remote station measures the 2D images to produce quantitative measurements that yield a 3D model of the rod shape. The remote station can use the 3D rod shape to determine metrics that relate to how the rod shapes the spine. For example, a Cobb angle can be calculated from the rod shape to determine if the rod yields the desired spine outcome.Type: ApplicationFiled: October 26, 2016Publication date: May 4, 2017Applicant: Orthosensor IncInventor: Erik Herrmann
-
Patent number: 9622701Abstract: An orthopedic implant having a three-axis accelerometer is disclosed. The three-axis accelerometer is used to detect micro-motion in the implant. The micro-motion can be due to loosening of the implant. The implant is configured to couple to the muscular-skeletal system. In one embodiment, the implant is configured to couple to bone. An impact force is imparted to the bone or implant. The impact force can be provided via a transducer coupled to the implant. In the example, the impact force is imparted along a single axis. The three-axis accelerometer measures the impact force along each axis. Resultant peaks of the quantitative measurement and the frequencies at which they occur are measured. The peaks and frequencies of the measurements correspond to micro-motion. Typically, the frequency of interest is less than 1 KHz to determine if micro-motion is occurring.Type: GrantFiled: February 5, 2016Date of Patent: April 18, 2017Assignee: ORTHOSENSOR INCInventors: Marc Stein, Yoong-Joong Kim, Matthew J. Cohen, Chelsea A. Liddell
-
Patent number: 9615887Abstract: A knee bone cut system and method is disclosed. The knee bone cut system supports cutting an anterior portion of a distal end of a femur. The system comprises a sensored insert, a femoral rotation guide, and a remote system to receive and display sensor data. The sensored insert provide data related to load magnitude, position of load, and leg position. The femoral rotation guide has moveable condyles to adjust condyle position in a rapid manner. A pinch mechanism and lock mechanism respectively move the condyles into contact with the sensored insert. Moreover, the femoral rotation guide can be loaded similar to a final installed insert over a range of motion. For example, the patella can be placed on the femoral rotation guide allowing the patella to load the sensored insert. The femoral insert guide includes guide holes that are used in conjunction with a bone cutting jig.Type: GrantFiled: September 13, 2013Date of Patent: April 11, 2017Assignee: ORTHOSENSOR INC.Inventors: Marc Stein, Martin Roche
-
Patent number: 9592010Abstract: A dual-mode closed-loop measurement system (100) for capturing a transit time, phase, or frequency of energy waves propagating through a medium (122) is disclosed. A first device comprises an inductor drive circuit (102), an inductor (104), a transducer (106), and a filter (110). A second circuit comprises an inductor (114) and a transducer (116). A parameter to be measured is applied to the medium (122). The medium (122) is coupled between the first device and the second device. The first device initiates the transmit inductor (104) to query via inductive coupling to a receive inductor (114) on the second device via a first path. The inductor (114) triggers a transducer (116) on the second device to emit an energy wave that is propagated in the medium (122) and detected by the first device. The transit time of energy waves is affected by the parameter by known relationship.Type: GrantFiled: June 29, 2010Date of Patent: March 14, 2017Assignee: ORTHOSENSOR INC.Inventor: Marc Stein
-
Patent number: 9566020Abstract: A system and method is disclosed herein for measuring anterior-posterior slope of a bone to set a cutting jig coupled to the muscular-skeletal system. The system comprises a sensored module that can be placed within a prosthetic component to measure anterior-posterior slope. The system further includes a remote system for receiving, processing, and displaying quantitative measurements from the sensors. A first bone and a second bone are placed in extension. A sensored module is referenced to a bone landmark of the first bone. The sensored module includes a three-axis accelerometer that is configured to measure position, tilt, and rotation. A bone cutting jig is coupled to the first bone. The sensored insert is coupled to the bone cutting jig. The accelerometer in the sensored insert is used to measure the anterior-posterior slope. The bone cutting jig is then adjusted to a predetermined anterior-posterior slope as measured by the sensored insert.Type: GrantFiled: September 13, 2013Date of Patent: February 14, 2017Assignee: ORTHOSENSOR INCInventors: Marc Stein, Martin Roche
-
Patent number: 9492116Abstract: An orthopedic implant having an energy-harvesting device is disclosed. In one embodiment the orthopedic implant is a prosthetic component of a joint of the muscular-skeletal system. The orthopedic implant can include electronic circuitry, a power source, and one or more sensors for measuring a parameter of the muscular-skeletal system or a parameter of in proximity to the implant. The energy-harvesting device generates charge for powering the electronic circuitry using movement of the muscular-skeletal system. The energy-harvesting device comprises a piezo-electric element that converts changes in force into charge that is stored onto a storage device. The energy-harvesting device is coupled to the patella of a knee joint. Movement of the knee joint changes a force applied to the energy-harvesting device thereby generating charge that is coupled to circuitry in a prosthetic component of the knee joint.Type: GrantFiled: December 8, 2015Date of Patent: November 15, 2016Assignee: ORTHOSENSOR INC.Inventor: Marc Stein
-
Patent number: 9492238Abstract: A system and method is disclosed herein for measuring alignment of the muscular-skeletal system. The system comprises a sensored module that can be placed within a prosthetic component to measure load, position of load, and joint alignment. The system further includes a remote system for receiving, processing, and displaying quantitative measurements from the sensors. Alignment relative to a mechanical axis is measured. In a two bone system with a joint therebetween the total alignment measured comprises offsets measured for each bone. The joint is placed in a predetermined flexion that supports measurement of the joint as it is moved. The joint pivots on a point that is along the mechanical axis. Points along the arc made by the joint rotating between a first and second point are measured. An arc maximum is determined. The arc maximum is then converted to varus or valgus offset relative to the mechanical axis.Type: GrantFiled: September 13, 2013Date of Patent: November 15, 2016Assignee: ORTHOSENSOR INCInventors: Marc Stein, Martin Roche
-
Patent number: 9492115Abstract: A prosthetic component suitable for long-term implantation is provided. The prosthetic component includes electronic circuitry and sensors to measure a parameter of the muscular-skeletal system. The prosthetic component comprises a first structure having at least one support surface, a second structure having at least one feature configured to couple to bone. The electronic circuitry and sensors are hermetically sealed within the prosthetic component. Sensors can be used to monitor synovial fluid in proximity to the joint to determine joint health. The prosthetic component can include a temperature sensor, a pH sensor, and an optical sensor. The temperature, pH, color, and turbidity of the synovial fluid can be correlated to a variety of joint conditions. Measurements over time can be analyzed for trends. The temperature, pH, color, and tubidity can be calibrated for the patient. The measurements are compared against this patient reference.Type: GrantFiled: February 17, 2014Date of Patent: November 15, 2016Assignee: ORTHOSENSOR INC.Inventors: Marc Stein, Andrew Chase, John Keggi, Noah Bonnheim, Natalie Burkhard, Philip Henson
-
Patent number: 9492119Abstract: A sensing insert device (100) is disclosed for measuring a parameter of the muscular-skeletal system. The sensing insert device (100) can be temporary or permanent. The sensing module (200) is a self-contained encapsulated measurement device having at least one contacting surface that couples to the muscular-skeletal system. The sensing module (200) comprises one or more sensing assemblages (2302), electronic circuitry (307), an antenna (2302), and communication circuitry (320). The sensing assemblages (2302) are between a top plate (1502) and a bottom plate (1504) in a sensing platform (121). The bottom plate (1504) is supported by a ledge (1708) on an interior surface of a sidewall (1716) of a housing (1706). A cap (1702) couples to top plate (1502). The sensing assemblage (2302) includes one of a piezo-resistive sensor, MEMS sensor, strain gauge, or mechanical sensor when a force, pressure, or load is applied to the top plate (1502).Type: GrantFiled: June 29, 2010Date of Patent: November 15, 2016Assignee: ORTHOSENSOR INC.Inventors: Marc Stein, Martin Roche
-
Patent number: 9462964Abstract: At least one embodiment is directed to an insert for measuring a parameter of the muscular-skeletal system. The insert can be temporary or permanent. In one embodiment, the insert is prosthetic component for a single compartment of the knee. The insert comprises a support structure and a support structure respectively having an articular surface and a load bearing surface. The height of the insert is less than 10 millimeters. At least one internal cavity is formed when support structures are coupled together for housing electronic circuitry, sensors, and the power source. The cavity can be sterilized through a port. A membrane is between the port and the cavity. A sterilization gas permeates the membrane for sterilizing cavity. The membrane reduces the ingress of solids and liquids to the cavity.Type: GrantFiled: September 23, 2011Date of Patent: October 11, 2016Assignee: ORTHOSENSOR INCInventors: Marc Stein, Andrew Miller, Jason Addink, Andrew U. Chase
-
Patent number: 9456769Abstract: A system and method for measuring medial-lateral tilt of a bone is disclosed. The bone is coupled to a joint of the muscular-skeletal system. The method comprises coupling a three-axis accelerometer to a prepared bone surface of a bone. The three-axis accelerometer is configured to measure position, rotation, and tilt. The joint is rotated between two points. The rotation between the two points traverses an arc having a maximum therebetween. The joint pivots off of a surface to which the bone is coupled. In one embodiment, a pivot point and joint rotation relates to a mechanical axis of the joint and bone. The three-axis accelerometer measures data points along the arc as it is rotated between the two points. Multiple passes along the arc generates sufficient data points to determine the maximum. The position of the maximum is used to calculate the medial-lateral tilt of the bone.Type: GrantFiled: September 13, 2013Date of Patent: October 4, 2016Assignee: ORTHOSENSOR INC.Inventors: Marc Stein, Martin Roche
-
Patent number: 9452022Abstract: A disposable tool suitable for use in orthopedic alignment that registers points of interest on a first and second bone and transmits location data related to the points of interest to the sensor to assess orthopedic alignment with the points of interest. A display can report and visually display alignment information in real-time.Type: GrantFiled: December 31, 2010Date of Patent: September 27, 2016Assignee: ORTHOSENSOR INCInventors: Jason McIntosh, Marc Boillot