Abstract: A method is for generating image data using a computer tomography device. CT raw data is provided. An initial image is produced from the CT raw data. The initial image is segmented into regions based upon anatomical features. An image mask corresponding to the regions in each case is produced for the initial image, the image mask defining an effective region for a respectively assigned mapping rule. The mapping rules are applied in the effective regions defined by the respective image masks, and the image data is generated based upon the initial image processed via the mapping rules.

Abstract: A method and system for fast non-invasive computer-based computation of a hemodynamic index, such as fractional flow reserve (FFR) from medical image data of a patient is disclosed. A patient-specific anatomical model of one or more arteries of a patient is automatically generated based on medical image data of the patient. Regions in the automatically generated patient-specific anatomical model for which user feedback is required for accurate computation of a hemodynamic index are predicted using one or more trained machine learning models.

Abstract: There is provided a method for predicting risk of osteoporotic fracture, comprising: receiving imaging data of a computed tomography (CT) scan of a body of a patient containing at least a bone portion, the CT scan being performed with settings selected for imaging of non-osteoporosis related pathology; processing the imaging data to identify the bone portion; automatically extracting features based on the imaging data denoting the identified bone portion; computing an osteoporotic fracture predictive factor indicative of the risk of developing at least one osteoporotic fracture in the patient, or the risk of the patient having at least one severe osteoporotic fracture, based on the extracted features, the predictive factor calculated by applying a trained osteoporotic fracture classifier to the extracted features, the osteoporotic fracture classifier trained from data from a plurality of CT scans performed with settings selected for imaging non-osteoporosis related pathology; and providing the predictive fact

Abstract: A system is for determining fat and lean body tissue components of body tissue. A propagating wave is provided into the body tissue. A first set of normally directed reflections of the propagating wave is received at a first measurement site and a second set of angled reflections of the propagating wave is received from the body tissue at a second measurement site. A fat body tissue depth and optionally also a lean body tissue depth are obtained based on the times at which reflections of the first and second sets are received. This arrangement requires only two receivers in order to resolve the depth of the fat and lean body tissue constituents. The propagation paths are simplified by arranging the transceiver to direct a wave normally into the tissue.

Abstract: Micromachined ultrasonic transducers having pressure ports are described. The micromachined ultrasonic transducers may comprise flexible membranes configured to vibrate over a cavity. The cavity may be sealed, in some instances by the membrane itself. A pressure port may provide access to the cavity, and thus control of the cavity pressure. In some embodiments, an ultrasound device including an array of micromachined ultrasonic transducers is provided, with pressure ports for at least some of the ultrasonic transducers. The pressure ports may be used to control pressure across the array.

Abstract: A transducer cover for use in an ultrasonic medical instrument having a transducer is disclosed. The transducer cover includes a vibration absorbing layer of a generally cylindrical form made of a synthetic resin having a vibration absorbing property, and a chemical blocking layer of a generally cylindrical form made of a synthetic resin which is impermeable to water and chemicals. The vibration absorbing layer and the chemical blocking layer are coaxially laminated, and capable of sealing arrangement over and around the transducer. Also disclosed is an ultrasonic medical instrument having an ultrasonic transducer and the transducer cover, and a method for forming the transducer cover over and around an ultrasonic transducer of an ultrasonic medical instrument.

Abstract: Exemplary embodiments provide systems and methods for portable medical ultrasound imaging. Preferred embodiments utilize a hand portable, battery powered system having a display and a user interface operative to control imaging and display operations. A keyboard control panel can be used alone or in combination with touchscreen controls to actuate a graphical user interface. Exemplary embodiments also provide an ultrasound engine circuit board including one or more multi-chip modules, and a portable medical ultrasound imaging system including an ultrasound engine circuit board.

Abstract: A tension transmission device as a control system for a probing portion of a three-dimensional mechanical probe is fitted to a support portion. The tension transmission device includes a driving shaft, a first tension member, and a second tension member. The driving shaft defines first and second fastening points. The first fastening point and the second fastening point are located at axially-distanced points of the driving shaft which are not diametrically opposite. The first and second tension members wind around a circumference of the driving shaft guided by a first pulley and a second pulley, to rotate and manipulate the driven shaft of the probing portion.

Abstract: Vertical packaging configurations for ultrasound chips are described. Vertical packaging may involve use of integrated interconnects other than wires for wire bonding. Examples of such integrated interconnects include edge-contact vias, through silicon vias and conductive pillars. Edge-contact vias are vias defined in a trench formed in the ultrasound chip. Multiple vias may be provided for each trench, thus increasing the density of vias. Such vias enable electric access to the ultrasound transducers. Through silicon vias are formed through the silicon handle and provide access from the bottom surface of the ultrasound chip. Conductive pillars, including copper pillars, are disposed around the perimeter of an ultrasound chip and provide access to the ultrasound transducers from the top surface of the chip. Use of these types of packaging techniques can enable a substantial reduction in the dimensions of an ultrasound device.

Abstract: An ultrasound device is described. The ultrasound device may include a cavity, a membrane, and a sensing electrode. When an electrical signal is applied to the sensing electrode and a static bias is applied to the membrane, the membrane vibrates within the cavity and produces ultrasonic signals. The cavity, the membrane, and the sensing electrode may be considered a capacitive micromachined ultrasonic transducer (CMUT). The sensing electrode may be shaped as a ring, whereby the central portion of the sensing electrode is removed. Removal of the central portion of the sensing electrode may reduce the parasitic capacitance without substantially affecting the production of ultrasonic signals by the CMUT. This, in turn, can result in an increase in the signal-to-noise ratio (SNR) of the ultrasonic signals. The ultrasound device may further include a bond pad configured for wire bonding, and a trench electrically isolating the bond pad from the membrane.

Abstract: An ultrasound observation apparatus includes: an operation controller configured to control a shape of a region of interest that is set in an ultrasound image according to a change in a contact position at which a contacting object contacts a touch pad, the operation controller being configured to detect two contact positions of the contacting object on the touch pad, calculate a first positional relationship based on the two contact positions in the touch pad, detect a position of the region of interest that is set in the ultrasound image, calculate a second positional relationship based on a position at which the region of interest is set and on a reference position, and control the shape of the region of interest based on a relative relationship between the first positional relationship and the second positional relationship.

Abstract: An ultrasound observation device includes a processor including hardware, wherein the processor is configured to: generate ultrasound image data; set, in a region of interest, a plurality of small regions by dividing the region of interest in accordance with a preset condition; generate a histogram of each of the small regions; calculate a determination value for each of the small regions; determine whether the physical quantity in each of the small regions is uniform; change a determination target small region in accordance with a preset condition when the physical quantity in the determination target small region among the small regions is determined to be not uniform; set the determination target small region as an attenuation rate calculation target region when the physical quantity in the determination target small region is determined to be uniform; and set an attenuation rate of the attenuation rate calculation target region.

Abstract: An ultrasound imaging system according to the present disclosure may include or be operatively associated with an ultrasound transducer configured to acquire echo signals responsive to ultrasound pulses transmitted toward a medium. The system may include a channel memory configured to store the acquired echo signals, a neural network coupled to the channel memory and configured to receive one or more samples of the acquired echo signals, one or more samples of beamformed signals based on the acquired echo signals, or both, and to provide imaging data based on the one or more samples of the acquired echo signals, the one or more samples of beamformed signals, or both, and may further include a display processor configured to generate an ultrasound image using the imaging data provided by the neural network. The system may further include a user interface configured to display the ultrasound image produced by the display processor.

Abstract: An ultrasound system according to some embodiments may include an ultrasound transducer configured to transmit ultrasound pulses toward tissue and generate echo signals responsive to the ultrasound pulses, a channel memory configured to store the echo signals, a beamformer configured to generated beamformed signals responsive to the echo signals, a neural network configured to receive one or more samples of the echo signals or the beamformed signals and produce a first type of ultrasound imaging data, and a processor configured to generate a second type of ultrasound imaging data, wherein the one or more processors may be further configured to generate an ultrasound image based on the first type of ultrasound imaging data and the second type of ultrasound imaging data and to cause a display communicatively coupled therewith to display the ultrasound image.

Abstract: A method and system for registering a pre-operative 3D medical image volume of a target organ to intra-operative ultrasound images is disclosed. An intra-operative 3D B-mode ultrasound volume and an intra-operative 3D ultrasound elastography volume are acquired. Patient-specific boundary conditions for a biomechanical tissue model of a target organ are determined using the intra-operative 3D B-mode volume. Patient-specific material properties for the biomechanical tissue model of the target organ are determined using the 3D ultrasound elastography volume. The target organ in the pre-operative 3D medical image volume is deformed using the biomechanical tissue model with the patient-specific material properties with the deformation of the target organ in the pre-operative 3D medical image volume constrained by the patient-specific boundary conditions.

Abstract: The present invention relates to an ultrasound imaging system (100) for producing spatially compounded 3D ultrasound image data, comprising: —an ultrasound acquisition unit (16) for acquiring a plurality of 3D ultrasound image data having different but at least partially overlapping field of views, —a tracking unit (62) adapted to determine a relative spatial position of each of 5 the plurality of 3D ultrasound image data with respect to each other, and —a stitching unit (64) adapted to compound the plurality of 3D ultrasound image data by stitching them to each other in order to generate compounded 3D ultrasound image data, wherein the stitching unit (64) is adapted to calculate a stitching order of the plurality of 3D ultrasound image data based on the determined relative spatial position of the 3D 10 ultrasound image data by minimizing an overlapping area of the different field of views of the plurality of 3D ultrasound image data, and wherein stitching unit (64) is adapted to stitch the plurality of 3D ul

Abstract: A time gain compensation (TGC) circuit for an ultrasound device includes a first amplifier having an integrating capacitor and a control circuit configured to generate a TGC control signal that controls an integration time of the integrating capacitor, thereby controlling a gain of the first amplifier. The integration time is an amount of time an input signal is coupled to the first amplifier before the input signal is isolated from the first amplifier.

Abstract: A power supply connected to an ultrasonic treatment instrument. The power supply includes an oscillator, a field programmable gate array (FPGA), and a drive circuit. The oscillator generates a basic clock. The FPGA receives the basic clock generated by the oscillator. The FPGA generates a pulse width modulation (PWM) wave for driving a ultrasonic transducer based on the basic clock. The drive circuit is connected to the FPGA, and digitally amplifies the PWM wave to output the amplified PWM wave. The FPGA outputs the PWM wave when an output signal for driving the ultrasonic treatment instrument is input, and the PWM wave is modulated by comparing a value of first data representing a sine wave in constant current control with a value of second data representing a reference wave. The FPGA outputs a rectangular wave with a predetermined duty ratio when the output signal is not input.

Abstract: The present invention includes strainers used to gather solids from voided urine. Embodiments include urinary bowl strainers, hand-held strainers and disposable hand-held urine strainers, all of which are particularly useful for gathering kidney stones passed in urine that are intended for verification of passing said kidney stones, and for laboratory analysis which may be used to guide clinical treatment to prevent recurrent kidney stone formation. Embodiments of disposable urine samplers are also disclosed. The embodiments of urine strainers and samplers disclosed herein are particularly adapted for use by female patients, though male patients may also use the devices.

Abstract: A closure device is provided. The closure device includes a first planar disk delivered to a first vascular vessel and a second planar disk delivered to a second vascular vessel adjacent to the first vascular vessel. The closure device also includes a compression element configured to pull the first planar disk and the second planar disk together. The first planar disk and the second planar disk are disposed in parallel planes and have a common axis.

Abstract: An apparatus for sealing a puncture through tissue having an introducer sheath therein includes an elongate positioning member including a housing on a proximal end and an expandable member on a distal end, and a cartridge advanceable along the positioning member from a proximal position to a distal position. The cartridge includes a tubular member including a sealant and an advancer member disposed within lumen of the tubular member. A sleeve is slidably disposed over the tubular member distal end such that, when the tubular member is advanced over the positioning member, the tubular member distal end enters the introducer sheath while the sleeve is stopped and slides over the tubular member to expose the tubular member distal end within the introducer sheath. The introducer sheath and cartridge are then withdrawn, exposing the sealant within the puncture.

Abstract: A closure device for sealing a percutaneous puncture in a wall of a body passageway, the closure device including at least one of a toggle configured to engage an interior surface of the body passageway or a plug configured to engage an exterior surface of the body passageway and a guide wire configured to extend from an outside of the body to inside the body passageway, wherein at least one of the toggle and the plug is associated with the guide wire.

Abstract: A tissue specimen retrieval device includes a housing, an outer shaft extending distally from the housing, an end effector assembly extending distally from the outer shaft in a deployed position, a tissue specimen bag supported on the end effector assembly and including an open end extending between proximal and distal end portions of the end effector assembly, a cinch loop disposed about the open end of the tissue specimen bag, and a distal cinch tab. The distal cinch tab is disposed at the distal end portion of the end effector assembly and extends from the open end of the tissue specimen bag. The distal cinch tab is operably coupled to the cinch loop such that pulling the distal cinch tab distally relative to the cinch loop constricts the cinch loop about the open end of the tissue specimen bag to cinch the open end of the tissue specimen bag closed.

Abstract: A positive stop distractor, and arrays thereof, each instrument adapted with a generally flat/planar paddle and one or more mechanical stops on the planar paddle. And a modular distractor used to provide sustained distraction of a joint space, particularly a spinal disc space, including a distractor handle, a body, and a retrievable shim, and an optional cable for retention and retrieval of the shim.

Abstract: Provided is a retractor for endoscopic surgery, and more particularly, to a retractor for endoscopic surgery, the retractor being configured to supply and discharge gas to and from a human body, or directly to and from a human body. The retractor includes: a penetrating member penetrating through a human body; an anti-separation member provided at a lower portion of the penetrating member to prevent separation of the retractor from the human body; and a supply and exhaust member for supplying or exhausting gas, wherein the anti-separation member is provided with at least one of a supply hole to supply gas to the human body and an exhaust hole to exhaust gas from the human body by communicating with the supply and exhaust member, whereby gas supply or gas exhaust is preformed through the anti-separation member.

Abstract: Meniscal repair devices, systems, and methods are provided.

Abstract: A suture bridge includes an elongated rigid insert including a first material, and a deformable shell including a second material, the second material being different than the first material, the shell at least partially surrounding the rigid insert, the insert and the shell collectively forming a bridge body having a first leg including a first patient contacting surface configured to contact a patient's skin, a second leg spaced from the first leg and including a second patient contacting surface configured to contact the patient's skin, a first support connected to the first leg, a second support connected to the second leg, and a traversing member extending between the first support and the second support, the traversing member being connected to the first support distal the first leg and connected to the second support distal the second leg.

Abstract: A method and device are provided for closing a port site incision after a minimally invasive surgical procedure is performed. The closure device includes an access device and a suture needle. A body of the access device has a proximal portion and a distal portion and defines a channel that extends between the proximal and distal portions. A head of the access device is supported on the proximal portion of the body. The suture needle includes a shaft having a proximal portion and a distal portion, and a curved portion that extends from the distal portion of the shaft and includes a tip configured to penetrate tissue. The shaft extends through and is movable within a slot in the head to move the curved portion of the suture needle from an inactive position located within the channel to an active position positioned located externally of the channel.

Abstract: A port site closure instrument includes a pair of wings and a body having proximal, central, and distal portions. The proximal portion defines a proximal suture aperture and first and second needle apertures. The central portion defines third and fourth needle apertures. A first needle channel is defined through the body communicating the first and third needle apertures. A second needle channel is defined through the body communicating the second and fourth needle apertures. The distal portion defines distal suture apertures. A first suture channel is defined by the body communicating the proximal and distal suture apertures. The pair of wings is pivotally supported by the distal portion of the body. Each of the wings define a suture slot such that a suture exiting one of the distal suture apertures and positioned in the suture slots is aligned with one of the first or second needle channels.

Abstract: A suture passing device includes a jaw assembly that is moved to an open configuration after exiting a hollow needle distal tip and moved to a closed configuration when retracted into the needle tip. The jaw assembly may include a pair of jaw members biased to a default diverging configuration. A suture capturing mechanism formed on the jaw members securely captures suture to both push and pull the captured when the jaw assembly is retracted into the hollow distal tip. The device may also include a second suture capturing mechanism that loosely captures suture and enables the captured suture to slide.

Abstract: The suture passer includes a body, from which two mechanisms protrude: a hollow needle through which a suture is guided, the suture exiting at the surgical site; and a sliding hollow tube with a distal opening, with a pincer/clamp/jaws held within the sliding hollow tube. The two primary parts of the suture passer are the hollow needle and the retrieval member.

Abstract: Shipping wedges for installing end effectors onto an endoscopic assembly of a surgical tack applier are provided. In aspects, a shipping wedge includes an elongate body extending along a longitudinal axis and defining a channel therethrough, and an arm disposed within a slot defined in a side wall of the elongate body. The arm includes a first end coupled to the side wall and a second end that is movable laterally with respect to the side wall. In aspects, a shipping wedge includes an elongate body extending along a longitudinal axis and defining a channel therethrough. A proximal portion of the elongate body includes a first arm extending proximally from a distal portion of the elongate body and a locking tab extending laterally into the channel of the elongate body.

Abstract: Tissue fasteners carried on a tissue piercing deployment wire fasten tissue layers of a mammalian body together include a first member, a second member, and a connecting member extending between the first and second members. One of the first and second members has an elongated slot permitting fastener deployment while avoiding excessive tissue compression.

Abstract: A surgical instrument has a staple cartridge housing a plurality of staples and an anvil configured to capture tissue therebetween. The surgical instrument also has a firing assembly configured to deploy the plurality of staples into the captured tissue during a firing sequence, and a handle that includes an electric motor operably coupled to the firing assembly, wherein the electric motor is configured to motivate the firing assembly to deploy the plurality of staples into the captured tissue during the firing sequence, and a power pack. The power pack includes rechargeable battery cells configured to power the electric motor, at least one battery-cell health indicator, and an electronic control circuit configured to assess whether a subset of rechargeable battery cells is damaged during the firing sequence based on at least one measurement performed by the at least one battery-cell health indicator.

Abstract: A loading unit for use with a surgical stapling apparatus is provided and includes a tool assembly having a cartridge assembly and an anvil assembly that are movable in relation to one another; a surgical buttress releasably secured to a tissue contacting surface of the anvil assembly and/or the cartridge assembly, wherein each surgical buttress is secured to the anvil assembly and/or the cartridge assembly by at least one anchor; a release assembly associated with the anvil assembly and/or the cartridge assembly; and a drive assembly slidably translatable through the tool assembly between proximal and distal positions, wherein the drive assembly actuates the release assembly to thereby release the anchor to free the surgical buttress from the anvil assembly and/or the cartridge assembly.

Abstract: The present invention relates to a medical instrument, and particularly relates to a hemostatic clip device. The device includes a clamping component and a holder component. The head portion of the sleeve is provided with open slots for clamping arms to move. The tail ends of the outer side edges of clamping arms each is provided with a recess. A hole, corresponding to the position of the recess of one clamping arm, is formed in the other one. The sleeve is connected with the sleeve holder through inner core. The head end of the double-wire supporting arm is connected with the holes, and the other end is connected with wire rope and passes through the sleeve, the inner core, the sleeve holder and a bourdon tube so as to be connected with an operation handle. The device has the advantages of simple structure, firm clamping, convenient use and the like.

Abstract: The present invention generally provides improved medical devices, systems, and methods, particularly for treating one or both lungs of a patient with an implant, such as a coil, having a strength tuned to a patient's tissue treatment region. More particularly, embodiments of the present invention include implant assemblies and systems for treating a lung of a patient with chronic obstructive pulmonary disease. The implant assemblies may comprise an elongate body comprising an alloy that may be characterized by its austenite final tuning. The implant may include multiple portions that may be of different austenite final tunings.

Abstract: An occlusive system for the vasculature and an embolic coil used in such an occlusive system is described. Also described is an occlusive plug which can be used for occlusive purposes within the vasculature.

Abstract: Devices, systems, and methods for reducing stress on a blood vessel are disclosed herein. A damping device (100) configured in accordance with embodiments of the present technology can include an anchoring member (104) coupled to a flexible, compliant damping member (102) including a generally tubular sidewall having an outer surface (115), an inner surface (113) defining a lumen configured to direct blood flow, a first end portion (106) and a second end portion (108), and a damping region (120) between the first and second end portions (106, 108). The inner and outer surfaces (113, 115) of the damping member (102) can be spaced apart by a distance that is greater at the damping region (120) than at either of the first or second end portions (106, 108).

Abstract: Implantable therapeutic devices and methods for endovascular placement of devices at a target site, such an opening at a neck of an aneurysm, are disclosed. Selected embodiments of the present technology have closures that at least partially occlude the neck of an aneurysm to stabilize embolic or coagulative treatment of the aneurysm.

Abstract: An example system for detecting leakage around an implant is disclosed. The example system for detecting leakage around an occlusive implant disposed in the left atrial appendage includes an elongate shaft having a port disposed at a distal end region thereof and a first sensor disposed adjacent the elongate shaft. The elongate shaft is configured to be positioned adjacent the occlusive implant such that the first sensor is positioned on a first side of the occlusive implant and the port is positioned on a second side of the occlusive implant. Further, the first sensor is configured to measure a first parameter and the first parameter is utilized to determine a fluid leak between the occlusive implant and a tissue wall defining the left atrial appendage.

Abstract: Methods and systems for inverting and closing a left atrial appendage. The system can include a vacuum tube, closed-end needle, and tissue glue. The vacuum tube may have a plunger-like end for attachment to the left atrial appendage and may also be capable attaching to a vacuum source. The method can comprise the steps of attaching the vacuum tube to the left atrial appendage, advancing a closed-end needle through the left atrial appendage, retracting the vacuum tube to invert the left atrial appendage, and injecting tissue glue through the closed-end needle so that the exterior sides of the left atrial appendage are glued together and the appendage will fibrous and atrophy over time, thereby eliminating formation of a thrombus within the apex of the atrial appendage.

Abstract: An exemplary occlusion device is disclosed. In various embodiments, the exemplary occlusion device includes a cap chamber and a bulb chamber for occluding a left atrial appendage (LAA). In particular embodiments, after delivery to the LAA, the cap chamber and the bulb chamber are each inflated via various amounts of fluid(s) to occlude the LAA.

Abstract: A vaso-occlusive device includes an inner braided member having an unconstrained deployed configuration and a constrained delivery configuration. The inner braided member includes a first plurality of filaments made of a first material composition, where a pair of filaments of the first plurality defines a first braid angle when the inner braided member is in the deployed configuration. The device also includes an outer braided member disposed at least partially around the inner braided member, and having an unconstrained deployed configuration and a constrained delivery configuration. The outer braided member includes a second plurality of filaments made of a second material composition different from the first material, where the first material has a greater radiopacity than the second material. A pair of filaments of the second plurality defines a second braid angle, substantially equal to the first braid angle, when the outer braided member is in the deployed configuration.

Abstract: The present disclosure relates generally to orthopaedic surgical tools used to cut and/or resect a bone of a patient during an orthopaedic surgical procedure such as, for example, a joint replacement procedure.

Abstract: Guides, systems, and methods for maintaining, correcting and/or fusing joint deformities are disclosed. The guide system including a cut guide, an alignment guide, and at least one directional wire. The cut guide including a base portion, an extension member extending away from a bottom surface of the base portion, and at least one arm extending away from an end of the base portion. The alignment guide, including a base portion, a first extension member extending away from a bottom surface of the base portion in a first direction, and a second extension member extending away from the bottom surface of the base portion in a second direction. Methods of using a guide system for maintaining, correcting and/or fusing joint deformities are also disclosed.

Abstract: Devices and methods for performing total knee arthroplasty procedures with kinematic alignment are described herein. A method of performing a total knee arthroplasty can comprise positioning a femoral cut guide adjacent a distal end of a femur, positioning a tibial cut guide proximate a proximal end of a tibia adjacent an anterior surface of the tibia, adjusting a position of the femoral cut guide and the tibial cut guide relative to each other using a tibial positioning device, fixing the position of the femoral cut guide relative to the tibial cut guide using the tibial positioning device, and resecting the femur and tibia with parallel resections using the femoral and tibial cut guides.

Abstract: A system and method for harvesting autologous tissue, mincing it into fragments that are visible and measurable when filtered, and delivering a portion of the tissue back into the patient without the need to directly touch the tissue. During the same surgical procedure, the tissue can be mixed with a biocompatible agent before introduction into the repair site.

Abstract: The present application is directed a Joint Revision Surgery Apparatus which includes a blade guide block which has a plurality of blade guide slots and a central cavity. The blade guide block central cavity is positioned over the trunnion end of the existing prosthesis to be removed and secured to the prothesis. Straight, curved and compound curved knife blades are guided by the blade guide slots to cut the prothesis free. The securing of the guide blade block support apparatus against the femur is accomplished by the means of a T handle screw or eyebolt threading into one of the threaded orifice in the blade guide block frame. The guide blocks in varying sizes and configurations, straight and curved knifes blades and related accessories may be sold as a complete kit. The Joint Revision Surgery Apparatus facilitates rapid, efficient and complete removal of an existing prosthesis during joint revision surgery.

Abstract: An orthopedic device for a shoulder joint includes a patient-specific alignment guide. The alignment guide includes a cap having a three-dimensional engagement surface customized in a pre-operative plan by computer imaging to be complementary and closely mate and conform to a humeral head of a proximal humerus of a patient. The alignment guide includes a tubular element extending from the cap and defining a longitudinal guiding bore for guiding an alignment pin at a patient-specific position and orientation determined in the pre-operative plan, and an orientation feature on the cap. The orientation feature is designed to orient the cap relative to the humeral head when the orientation feature is aligned with a landmark of the proximal humerus.