Abstract: A multi-lumen stent assembly (100) for deployment in a bifurcated vessel. This assembly is made of a self-expandable main body component (200) and two lumen extensions (300), able to be inserted into one of the lumens of a double-barrelled portion (208) of the main body component (200). The main body component (200) has a proximal end (201) configured to be placed toward the heart and a distal end (202). The main body component (200) has a main body portion (203), a concaved portion (206), and a transition portion (205). The main body portion (203) has a cylindrical lumen (204) of constant diameter. The concaved portion (206) has a double-barrelled portion (208) having two lumens (211). A cross-section of the transition portion (205) evolving from a circular shape to an elliptical shape towards the transition portion (205), a larger diameter of this shape being in a central plane (CP).

Abstract: Certain embodiments generally provide an improved tibial base member comprising keel portions that allow one or both cruciate ligaments to be preserved. Other embodiments provide improved lateral and/or medial inserts having a mesial lip that helps relieve and or prevent impingement between the femoral component and the tibial eminence. Other embodiments provide improved femoral components having various chamfers to provide additional clearance with respect to the tibial eminence and posterior cruciate ligament without decreasing bone coverage.

Abstract: A powered prosthetic thigh can have a proximal portion configured to couple to a prosthetic hip socket and can have a distal portion attached to the proximal portion. The distal portion can have a distal connector configured to couple to a prosthetic knee. The powered prosthetic thigh can also have a computer controlled actuator configured to rotate the prosthetic thigh relative to the prosthetic hip socket.

Abstract: A stent has a tubular shaped framework that includes a plurality of vertices that are each defined by a pair of struts. A plurality of induction responsive muscles are associated, respectively, with one of the plurality of vertices by being attached to each strut of a pair of struts. The induction responsive muscles have a relaxed state at body temperatures, and have a contracted state at an elevated temperature greater than body temperature. If the stent has an initial unsatisfactory implant orientation or position or other expansion irregularity, the application of an electromagnetic induction field may be applied to temporary 11 reduce the diameter of the stent to adjust its positioning and/or orientation.

Abstract: Tracheal stents may include a plurality of wave form structures each extending radially about the support structure, a plurality of axial loop members extending axially between adjacent wave form structures and a polymeric covering disposed thereover. Tracheal stents may include an expandable metal structure and a plurality of spacer fins extending above an outer surface of the expandable metal structure. The plurality of spacer fins may be formed of a material different than that of the expandable metal structure.

Abstract: At least partial function of a human limb is restored by surgically removing at least a portion of an injured or diseased human limb from a surgical site of an individual and transplanting a selected muscle into the remaining biological body of the individual, followed by contacting the transplanted selected muscle, or an associated nerve, with an electrode, to thereby control a device, such as a prosthetic limb, linked to the electrode. Simulating proprioceptive sensory feedback from a device includes mechanically linking at least one pair of agonist and antagonist muscles, wherein a nerve innervates each muscle, and supporting each pair with a support, whereby contraction of the agonist muscle of each pair will cause extension of the paired antagonist muscle. An electrode is implanted in a muscle of each pair and electrically connected to a motor controller of the device, thereby simulating proprioceptive sensory feedback from the device.

Abstract: A mosaic implant (2010) comprises a mesh support frame comprising a plurality of polygonal support rings (2040 A, B, C) connected by a plurality of struts (2014), and a plurality of mosaic plates (2012). The support rings are positioned within the mosaic plates; the struts extend between adjacent plates. An implant (1510) for filling a bore hole comprises a plate (1512) and a support frame (1520) having a central portion (1522) located at least partially within the plate, a polygonal outer rim (1524) having a plurality of fastening points for attaching the implant to bone surrounding a bore hole, and a plurality of arms (1530) extending between the central portion and the outer rim. The plurality of arms extend inwardly and downwardly away from the outer rim such that the central portion is located below the plane of the outer rim and the upper surface of the plate is flush with or slightly above the upper surface of the outer rim.

Abstract: Methods of bionic control of a device include passing an alternating current through a muscle to cause the muscle to contract, recording an electrophysiological signal from the contracting muscle, processing the electrophysiological signal to determine a measurement of electrical impedance, forwarding the measurement of electrical impedance to a controller, and controlling the device with a control action. A change of electrical impedance during muscle contraction is used as a basis for the control action.

Abstract: A vascular graft includes deformable sleeves that include an electrical component. The electrical component can be variable-resistance or piezoelectric, in embodiments, such that deformation of the sleeves due to pressure changes create or modify an electrical signal. A transponder can then transmit information relating to the pressure inside and outside of the vascular graft.

Abstract: A length extensible implantable device includes a porous member and a longitudinal constraining member. The longitudinal constraining member can constrain at least a portion, up to the entire length of, the porous member in the longitudinal direction. The length of the longitudinally constrained portion can be expanded by applying force to the porous member. The porous member may be a porous tubular member.

Abstract: Glaucoma can be treated by implanting an intraocular shunt into the eye. Such procedures can employ various deployment devices, shunts, and implantation techniques. A method for treating glaucoma can include positioning an intraocular shunt in eye tissue such that the shunt conducts fluid from the anterior chamber to the suprachoroidal space and delivers a pharmaceutical or biological agent to the eye.

Abstract: A transdermal intraosseous device for coupling a bone stump to an external prosthetic device includes a bone fixator, an external connector and a plurality of modular interface components. The bone fixator includes a proximal portion configured for anchoring into the bone stump of the patient and a distal portion including a base collar configured for subcutaneous implantation. The external connector has a distal portion for coupling to the external prosthetic device and a proximal portion for coupling to the distal portion of the bone fixator. Each interface component can be removably coupled to the base collar and has different size and shape to provide a surgeon-selected transition between the prosthetic device and the patient's skin.

Abstract: Various stents and stent-graft systems for treatment of medical conditions are disclosed. In one embodiment, an exemplary stent-graft system may be used for endovascular treatment of a thoracic aortic aneurysm. The stent-graft system may comprise proximal and distal components, each comprising a graft having proximal and distal ends, where upon deployment the proximal and distal components at least partially overlap with one another to provide a fluid passageway therebetween. The proximal component may comprise a proximal stent having a plurality of proximal and distal apices connected by a plurality of generally straight portions, where a radius of curvature of at least one of the proximal apices may be greater than the radius of curvature of at least one of the distal apices. The distal component may comprise a proximal z-stent coupled to the graft, where the proximal end of the graft comprises at least scallop formed therein that generally follows the shape of the proximal z-stent.

Abstract: A tendon repair implant delivery system and methods incorporating a guide member having a temporary fixation member on or adjacent to the distal end. The point of fixation defines a target site for placement of the tendon repair implant which is subsequently affixed to the tendon.

Abstract: Systems and methods are disclosed for operating a joint of a prosthesis during a phase of stance. In an embodiment, a method for such operation comprises determining a joint angle of the joint, determining a walking speed of the prosthesis, retrieving a torque value from a lookup table stored in a memory, on the basis of the joint angle and the walking speed, and initiating a signal to apply a torque to the joint of the prosthesis in an amount based on the torque value.

Abstract: The present invention provides a prosthetic finger. The prosthetic finger includes a finger mounting rack, a worm gear, a rotating shaft, a base joint rack, a finger base knuckle, a finger proximal knuckle, a finger distal knuckle, a tension spring, and a transmission rope, a grommet, a motor reducer assembly, a first bevel gear, a worm, a second bevel gear. The prosthetic finger can ensure that the connection of all the parts is reliable, the rotation of the worm gear is smooth, the tension spring is protected, and the transmission rope is not easy to fall off, so that the working reliability of the whole prosthetic finger can be improved and the possibility of failure can be reduced on the whole.

Abstract: According to one aspect of the present disclosure, a method and technique for manufacturing a stent are disclosed. The stent is a non-metallic stent having a furled small-diameter state and an expanded large-diameter state where the stent, in the furled small-diameter state, includes a plurality of central lobes arranged at spaced-apart intervals and extending longitudinally defining a stent axis, the plurality of central lobes defining a cylindrical plane of the stent. The stent also includes at least one peripheral lobe formed on at least one of the plurality of central lobes, the peripheral lobe oriented along the cylindrical plane.

Abstract: An implant positioning device and a method of using the device are described. The positioning device includes an end effector configured to contact an implant component during a surgical procedure, the end effector connected to an actuator for imparting an impact force to the implant component during the surgical procedure, a motor mechanically connected to the actuator and configured to move the actuator to produce one or more impacts on the end effector, thereby imparting the impact force to the implant component, and a control circuit coupled to the motor. The control circuit is configured to generate at least one motor control signal, transfer the at least one motor control signal to the motor, and, as a result of the at least one motor control signal, cause the motor to move the actuator to produce one or more impacts on the end effector.

Abstract: A method of conducting a surgical procedure including implanting an anchor into a bone, wherein the anchor comprises a receiving portion and a screw, the screw including a screw head contained within the receiving portion and pivotally engageable with a surface of the receiving portion, and wherein the receiving portion and the screw comprising a different material. The method further includes selecting a rod from a group of rod types and coupling the rod with the receiving portion to stabilize a position of a portion of the spine.

Abstract: An artificial heart for use in a human recipient includes a housing within which a quartet of turbine pump segments are operative. The quartet of turbine pump segments is configured to provide a pair of redundant input and output turbine pump segment pairs each input and output pair being coupled by a curved passage providing a redundancy which, in turn, enhances the safety factor provided by the artificial heart. Each turbine pump segment includes an impeller forwarded for rotation and having a plurality of impeller blades together with a static deswirler positioned within the impeller output flow to reduce the swirling turbulence of the blood flow induced by the rotating impeller.