Abstract: A circular stapling instrument including a stapling forming assembly that is actuated independently from actuation of the cutting assembly is provided. The instrument includes a handle assembly, an elongate body extending from the handle assembly, a cartridge assembly mounted on a distal end of the elongate body. The cartridge assembly includes a pusher and a knife assembly. The knife assembly is selectively fixed relative to the pusher.

Abstract: A method for inducing weight loss in a patient, the method comprising: intentionally occluding a blood vessel so as to create hypoperfusion in a gastrointestinal organ serviced by the blood vessel, whereby to interfere with normal gastrointestinal function and thereby induce weight loss in a patient.

Abstract: An occlusion device (e.g., for treatment of the left atrial appendage) includes a framework and a biocompatible covering disposed over at least a part of the framework. The framework may include a proximal portion, a middle portion, and a distal portion, wherein: the proximal portion includes a first hub that has a fixed first diameter; the middle portion has a second diameter and includes a plurality of beams extending from the first hub to a distal portion, wherein each of the plurality of beams is connected to an adjacent beam by a first circumferentially extending column of strut pairs; and the distal portion has a third diameter. In one or more embodiments, the framework includes improved circumferential strength and minimizes foreshortening.

Abstract: A medical instrument comprising: (a) a first joint comprising a first member and a second member, the first member configured to be repositionable with respect to the second member in a first degree of freedom; (b) a second joint operatively coupled to the first joint, the second joint comprising a third member and a fourth member, the third member configured to be repositionable with respect to the fourth member in a second degree of freedom; (c) a pair of repositionable jaws operatively coupled to the first joint and the second joint; (d) an occlusion clip detachably mounted to the pair of repositionable jaws; and, (e) a controller operatively coupled to the first joint, the second joint, and the pair of repositionable jaws, the controller including a first control configured to direct repositioning of at least one of the first member and the second member, and a second control configured to direct repositioning of at least one of the third member and the fourth member, and a third control configured to dir

Abstract: A prosthetic implant comprises an articular surface and a bone contacting surface. The articular surface has a first concavity extending along a first curved axis and the bone contacting surface has a convexity extending along a second curved axis. Geometric relationships between the concavity of the articular surface and convexity of the bone contacting surface are described. A resulting feature of this implant is a bone contacting surface including both planar and non-planar geometries. Instrumentation and a method for the preparation of the non-planar bone surface are also described.

Abstract: An elongated-shaped chisel used for bone manipulation during oral surgery. The chisel has a body with a top edge at one end that is configured to interface with a hammer, and a pointed edge at the other end to interface with the bone. An elongated-shaped sleeve surrounds the body of the chisel. A movement-control mechanism that is configured to control the movement of the chisel in relationship to the sleeve, wherein the movement-control mechanism comprises a first section that is associated with the elongated-shaped chisel and a second section that is associated with the elongated-shaped sleeve.

Abstract: Medical instrumentation is provided, in particular for implanting a hip joint stem, which includes a rasping instrument having a rasp stem defining a longitudinal direction. The rasp stem has at least two depth stops arranged or formed thereon. An implantation set is also provided which includes such a rasping instrument.

Abstract: An undercutting system for preparing a region between an ilium and a sacrum for sacroiliac fusion. The undercutting system includes an insertion apparatus and a cutting assembly. The cutting assembly is operably mounted with respect to the insertion apparatus. The cutting assembly has a distal end and a proximal end. The cutting assembly includes a plurality of cutting elements and a cutting element attachment mechanism. The cutting element attachment mechanism engages the cutting elements to operably mount the cutting elements with respect to the insertion apparatus. The cutting element attachment mechanism permits the cutting elements to pivot with respect to each other.

Abstract: A method of surgically implanting a glenoid component into the glenoid of a patient is disclosed. The method includes securing a rasp guide into the glenoid of the patient. The method also includes oscillating a surgical rasp over the rasp guide to form a cavity that is shaped to receive the glenoid component. The method also includes implanting the glenoid component in the cavity.

Abstract: Electrohydraulic lithotripters comprising a plurality of electrohydraulic probes are disclosed. Each probe of the plurality of probes comprise a first electrode and a second electrode positioned at a distal end of the probe such that when the probe is discharged, an electric arc between the first electrode and the second electrode produces a shockwave that radiates from the distal end of the probe. A first probe and a second probe of the plurality of probes may be configured to discharge simultaneously or sequentially.

Abstract: A surgical instrument includes an elongated shaft having a distal portion and a proximal portion coupled to a housing. An inner shaft member extends at least partially through the elongated shaft and is selectively movable in a longitudinal direction. An end effector is supported by the distal portion of the elongated shaft. The end effector includes upper and lower jaw members pivotally coupled to the distal portion of the elongated shaft about a pivot axis and including a pair of laterally spaced flanges. The pairs of flanges of the jaw members are arranged in an offset configuration such that one flange of the upper jaw member is positioned on a laterally exterior side of a corresponding flange of the lower jaw member, and the other flange of the upper jaw member is positioned on a laterally interior side of the other flange of the lower jaw member.

Abstract: An approximator device is provided. The approximator device may include an elongate member having a working end and a control end, at least two prongs disposed on the working end configured to engage tissue and longitudinally interface with one another, and a control mechanism disposed at the control end operatively coupled to one or more of the prongs and configured to longitudinally move the one or more prongs between an open position and an approximating position.

Abstract: A minimally invasive laparoscopic tissue removal device, namely a morcellator. The device includes, from proximal end to distal end, a handle, handle guard, elongate sheath, and mouth, finally terminating in a safety tip. The elongate sheath and mouth are concentric, such that two elongate, rotating cutting/shredding blades/teeth and one elongate auger feed screw can be positioned along the length of the sheath and mouth. The teeth are opposingly disposed and staggered, such that contact with tissue mass grabs and pulls tissue inwards toward the auger, which transports the tissue proximally toward the outside of the patient's body. A motor unit and gear assembly can be coupled to the teeth and auger to drive rotation of the teeth and auger. A cup assembly can be disposed in overlying relation to the mouth for guiding the tissue mass towards the mouth. Various mechanisms of safely covering the mouth are contemplated as well.

Abstract: A surgical instrument includes a body, a grip, and a strip assembly. The strip assembly releasably couples the grip with the body. The grip is movable from a first position to a second position. The grip is coupled with the body in the first position and detached from at least a portion of the body in the second position. At least a portion of the strip assembly detaches from at least a portion of the grip, the body, or another portion of the strip assembly when the grip is in the second position.

Abstract: An ultrasonic surgical assembly includes an ultrasonic transducer operable to convert a received motional current into a movement of a cutting blade of an ultrasonic waveguide, a measurement circuit connected in a parallel configuration with the ultrasonic transducer, a variable power source operable to supply current through a set of connection points to the parallel configuration and thereby create the motional current in the ultrasonic transducer, and a current controller operable to regulate the motional current by varying an output of the variable power source, thereby maintaining a substantially constant rate of movement of the cutting blade across a variety of cutting loads.

Abstract: A needle assembly has a needle hub that has a body to which are formed two plates at opposite sides thereof in a parallel relationship. The plates have respective upper edges and lower edges that lie substantially along respective planes, so that the needle hub may be stably placed onto a surface by means of the respective edges. The plates also prevent the rolling of the needle between the fingers of the clinician when the clinician holds the needle assembly by means of the plates. A partition is formed orthogonally proximate to the front ends of the parallel plates. The connector at the proximal portion of the needle hub is configured to have a non-conventional configuration that allows it to mate only with a counterpart connector that has a complementary non-conventional configuration.

Abstract: The present subject matter provides a trocar and sheath assembly for placement of implantable devices adjacent a body lumen, and a method of using the trocar and sheath assembly for implanting an implantable device at a target site for controllable coaptation of a patient's urethra.

Abstract: A surgical needle having notches in a sidewall with enhanced ultrasound reflectivity is disclosed. Indentations, ridges, projections, overhanging edges, and other structures are formed in the notches to retain small amounts of air or other reflective material as the surgical needle is passed through tissue. The additional amounts of reflective material retained by these structures will significantly enhance the ultrasound reflectivity and enhance the response to ultrasonic probing to provide an enhanced image during needle placement in a medical patient so that the needle may be accurately placed as desired. Alternatively or additionally, the notches are filled with a substance that contains air bubbles suspended in the substance wherein the suspended air bubbles provide the reflectivity enhancement. In both embodiments, the needle will be visible at any angle in which the device is used in a medical patient.

Abstract: A surgical apparatus for hair removal surgery includes an extraction module, a visualization component and a bridging component. The extraction module includes independently controllable coring and clipping devices. The visualization component acts to align a target hair follicle with the extraction module. The extraction module also includes at least one independently controllable suction port. The instrument also includes a dissection module having a tissue separating device.

Abstract: A method of preparing a knee joint for a prosthesis in a patient includes mating a patient-specific three-dimensional curved inner surface of a femoral alignment guide onto a corresponding three-dimensional femoral joint surface of the patient. The patient-specific three-dimensional curved inner surface is preoperatively configured from medical scans of the knee joint of the patient. First and second holes are drilled into an anterior portion of the femoral joint surface through corresponding first and second guiding apertures of the femoral alignment guide.

Abstract: A receiving part for coupling a bone anchor to a rod is provided, where the bone anchor includes a shank for anchoring to a bone or a vertebra. The receiving part includes a first end and a second end, the second end being connected to the shank, a bore extending from the first end into the receiving part for receiving a fixation device, the bore having a bore axis, and a recess for receiving a rod, the recess being open at the first end of the receiving part for allowing insertion of the rod and having opposing sidewalls on at least one side of the bore. When a rod is inserted into the recess, a longitudinal axis of the rod extends substantially perpendicular to the bore axis. A resilient retention element is provided on at least one of the opposing sidewalls, where the resilient retention element is deflectable toward the at least one sidewall when the rod is inserted.

Abstract: A spinal rod includes a central connector and first and second legs. The central connector has first and second ends. The first leg has first, second, and third sections. The first section of the first leg is directly coupled to the first end of the central connector. The second leg has first, second, and third sections. The first section of the second leg is directly coupled to the second end of the central connector. The second leg is spaced apart from the first leg to define a gap therebetween. The spinal rod defines a longitudinal axis and each of the second sections is parallel to the longitudinal axis in first and second planes that are orthogonal to one another. The first plane passes through each of the second sections which are each offset from the longitudinal axis. The second plane passes through the central connector and bisects the spinal rod.

Abstract: A growing rod for mounting between attachment mechanisms that are secured to anatomical structures of a patient having scoliosis. The growing rod includes an outer housing and an inner housing disposed within the outer housing. The inner housing includes a magnet assembly including a magnet having a first pole and a second pole and a gear reduction mechanism coupled to the magnet. A first rod is secured to the inner housing and a second rod is secured to the outer housing. The gear reduction mechanism reduces an output rotation of the magnet to rotate a driver that operates to move the inner housing along a longitudinal axis with respect to the outer housing.

Abstract: This disclosure provides a system for securing a bone to a rod, the system comprising a ligature, a body, and two fasteners. The ligature has two free ends and an intermediate portion therebetween, the intermediate portion being configured to engage a bone. A portion of a rod can be fastened to the body using one of the fasteners. The ligature can be fastened to the body using another one of the fasteners. The two fasteners are distinct from one another and are adapted to fasten two free end portions of the ligature to the body independently from fastening the portion of the rod to the body.

Abstract: Spinal fixation systems including a member, a first attachment portion, a second attachment portion, and an intermediate portion. The first attachment portion is attached at a superior end of the member and includes a first opening. The second attachment portion is attached at an inferior end of the member and includes a second opening. The intermediate portion connects the first and second attachment portions. The spinal fixation systems may also include a relief in at least one of the first opening and the second opening. The systems may also include a third attachment portion with a third opening and an intermediate portion with a first and a second elastic mechanism. The first elastic mechanism connects the first and third attachment portions and the second elastic mechanism connects the third and second attachment portions. Surgical methods for inserting the spinal fixation systems in a patient are also disclosed.

Abstract: Systems, assemblies, components and methods for correcting alignment of one or more vertebrae of a spine are provided. A first elongate derotator member includes a first elongate element having a first proximal end portion and a first distal end portion. The first distal end portion is releasably engageable with a first implant implanted in one of the vertebrae. A second elongate derotator member comprising a second elongate element is releasably engageable with a second implant implanted in the same vertebra. A transverse member is engageable with the first and second elongate elements.

Abstract: Open implant closure structures include a helically wound guide and advancement flange form having pivot-splay accommodating and splay control surfaces with opposing load flanks in initial non-parallel relation.

Abstract: A spinal fixation system includes a rod and anchor devices that include a bone engaging fastener having a head defining a spherical socket. A ball insert is placed within the socket and rotated so that the ball insert is juxtaposed with the socket. The anchor device further includes a yoke defining a yoke channel for receiving the rod and a stem engaged to the ball insert captured within the socket. A sleeve disposed between the yoke channel and the fastener head supports the rod. A set screw is operable to clamp the rod against the sleeve and draw the insert into engagement within the socket. A releasable detent defined between the yoke and the fastener head is configured to releasably retain the yoke in at least one discrete position relative to the fastener. Portions of the releasable detent may also exert a frictional retention force against the fastener head.

Abstract: A vertebral attachment system and method for retaining a spinal vertebra (25) on a rod (2) employ a device (1) including a body (3) for attachment to the rod, a flexible strip (4) for linking the vertebra to the attachment body and a means (5) for adjustably locking the flexible strip on the attachment body. The attachment body (3) is made of a single part having a U-shaped cross-section, for passing the rod between the bottom wall (10) of the U and the adjustable locking means. The adjustable locking means (5) consists of a linking part (18) connecting the opposite ends of the two arms (6, 7) of the U, arranged such as to compress the rod against the wall. The arms (6, 7) each include a recess (14) opposite thereof, located on the bottom side of the U, for passing the two ends of the strip between the bottom and the rod in order to form a loop for attachment to a vertebra.

Abstract: A vertebral attachment system and method for retaining a spinal vertebra (25) on a rod (2) employ a device (1) including a body (3) for attachment to the rod, a flexible strip (4) for linking the vertebra to the attachment body and a means (5) for adjustably locking the flexible strip on the attachment body. The attachment body (3) is made of a single part having a U-shaped cross-section, for passing the rod between the bottom wall (10) of the U and the adjustable locking means. The adjustable locking means (5) consists of a linking part (18) connecting the opposite ends of the two arms (6, 7) of the U, arranged such as to compress the rod against the wall. The arms (6, 7) each include a recess (14) opposite thereof, located on the bottom side of the U, for passing the two ends of the strip between the bottom and the rod in order to form a loop for attachment to a vertebra.

Abstract: An implantable spacer for placement between adjacent spinous processes is provided. The spacer includes a body and a wing rotatably connected to the body. The wing includes two U-shaped configurations that together define a substantially H-shaped configuration for retaining the spacer between adjacent spinous processes. An actuator assembly is connected to the body and to the wing with the proximal end of the spacer being connectable to a removable driver that is configured to engage the actuator assembly. While connected to the spacer, the driver is rotatable in one direction to deploy the wing from an undeployed to a deployed configuration and in an opposite direction to undeploy the wing. In the deployed configuration, the spacer acts as a space holder opening up the area of the spinal canal, maintaining foraminal height, reducing stress on the facet joints and relieving pain for the patient.

Abstract: An interspinous process implant is disclosed that includes an elongated threaded implant body defining a longitudinal axis and having a main body portion with opposed proximal and distal end portions, and a removable body portion operatively connected to the proximal end portion of the main body portion, a distal anchor assembly including two deployable anchor blades mounted for pivotal movement between a stowed position located within an interior cavity of the main body portion and a deployed position radially extending from the main body portion, and a proximal anchor assembly including an anchor collar mounted for longitudinal movement along the longitudinal axis of the implant body between a first position spaced apart from the distal anchor assembly and a second position approximated with the distal anchor assembly.

Abstract: The present invention provides spinous process implant and associated methods. In one aspect of the invention the implant limits the maximum spacing between the spinous processes. In another aspect of the invention, a spacer has at least one transverse opening to facilitate tissue in-growth. In another aspect of the invention, an implant includes a spacer and separate extensions engageable with the spacer. The spacer is provided in a variety of lengths and superior to inferior surface spacings. In another aspect of the invention, an implant includes a spacer and a cerclage element offset from the midline of the spacer in use so that the spacer defines a fulcrum and the cerclage element is operative to impart a moment to the vertebrae about the spacer. In another aspect of the invention, instrumentation for inserting the implant is provided. In other aspects of the invention, methods for treating spine disease are provided.

Abstract: A device for straightening and stabilizing the vertebral column, particularly for stabilizing broken vertebrae, includes a supporting implant which is plastically expandable by internal pressure. The supporting implant can be placed into the interior of a vertebral body which has been fractured under compression or between adjacent vertebral bodies. A pressure balloon to which pressure fluid can be admitted may be arranged in the interior of the supporting implant for producing the internal pressure.

Abstract: A system for treating a fracture of a bone with an intramedullary canal. A first implant has a body with an elongate intramedullary portion and a paddle having a surface to engage the bone. The intramedullary portion has a length between first and second lengthwise ends and can be directed into the intramedullary canal to place the first implant into an operative position with the paddle exposed outside of the intramedullary canal. At least one fixation element maintains the implant operatively positioned. The intramedullary portion is elongate with a primary length portion having a first lengthwise axis. At least a portion of the paddle surface faces away from the first lengthwise axis.

Abstract: An intramedullary rod for use with a fastener to repair a femur includes an elongate nail extending along a longitudinal axis and having a stem and a head. The head is provided with an aperture extending along an axis at an angle to the longitudinal axis for receiving the fastener. A mechanism is carried by the head for pivoting the axis of the aperture from a first angled position relative to the head to a second angled position relative to the head. A method for using the rod and fastener is provided.

Abstract: A bone re-angling device may be used in performing an osteotomy. The re-angling device may be a generally wedge-shaped body. The re-angling device maybe coupled to the bone using a fixation member.

Abstract: A locking mechanism for a polyaxial locking screw is provided, together with a polyaxial locking assembly for locking a receiving member to a substrate. Also provided is a plating system for pelvic reconstruction.

Abstract: A bone fixation system has a bone implant with an implant body. The implant body defines an upper surface, a bone-facing surface spaced from the upper surface along a transverse direction, and at least one aperture defined by an inner wall. A bone fixation element is configured for insertion at least partially through the aperture. The bone fixation element defines a proximal end and a distal end spaced from the proximal end along a central axis. The bone fixation element has a head and a shaft that extends relative to the head toward the distal end. The head defines a first ridge, a second ridge spaced from the first ridge, and a groove disposed between the first and second ridges. The groove can receive at least a portion of the inner wall to couple the bone fixation element to the bone implant.

Abstract: Implant devices for the internal fixation of fractured bones, and more particularly to ankle plates for the tibia bone are disclosed and include an anterolateral tibia plate having an L-shaped body including a proximal portion defining a longitudinal axis, and a distal portion defining a traverse axis, and having a support bridge connected between the proximal portion and the distal portion. Implant devices disclosed also include an anterior tibia plate having an elongated first portion, a second portion that widens outward with respect to the elongated first portion, and a plurality of removable tabs attached to the outer edge of the second portion. Implant devices disclosed also include a medial tibia plate having an elongated shaft with a proximal portion and a distal portion. The distal portion is configured to extend proximate to a base of medial malleolus, and has a curvature with respect to a longitudinal axis defined by the elongated shaft. The distal portion may include a plurality of removable tabs.

Abstract: Protheses and methods for treating canine cruciate ligament disease are disclosed comprising placement of a specifically configured implant on the femur or tibia to displace targeted muscle or connective tissue associated with the stifle joint so as to reduce cranial tibial thrust.

Abstract: An apparatus for treating a fracture of the distal radius of a patient, having a pivot pin configured to engage the radius at an attachment point distal to the fracture, and a handle assembly configured to engage the pivot pin dorsal to the patient's hand is presented. The pivot pin is configured to insert through and fixedly engage at least a portion of the distal fracture bone fragment associated with the radius. The handle assembly, once coupled to the pivot pin, provides adjustment of the position of the distal fracture bone fragment.

Abstract: Various exemplary methods, systems, and devices for blood flow are provided. In general, an implant can be configured to be implanted in bone and to delay clotting of blood flowing from the bone. The implant can include an anti-coagulation agent to delay the clotting of the blood. The anti-coagulation agent can be a coating on the implant, can be natural to a material forming the implant, or can be impregnated into a material forming the implant. In an exemplary embodiment, the implant is implanted in a bone in a surgical procedure for securing a soft tissue to bone, such as a rotator cuff repair procedure or an anterior cruciate ligament (ACL) repair procedure.

Abstract: A bone screw for pelvic bone fixation, the bone screw comprising an elongate body having a first end which is threaded for engaging at least one bone in the pelvic region, a second end comprising a screw head, and at least one opening across the length of the elongate body for adjustably receiving a fastening means to limit movement of the bone screw away from the engaged bone in use, wherein the at least one opening is shaped such that the position of the fastening means relative to the elongate body of the bone screw can be adjusted. A system for bone fixation in the pelvic region includes the bone screw and the fastening means.

Abstract: A bone anchoring element comprising a shaft (2) for anchoring in a bone, with a plurality of barb elements (7) arranged in at least one helical line around the shaft axis (M) is described, wherein said barb elements are elastically movable relative to the shaft. The bone anchoring element (1) is easy to press into a core hole bore in a bone. The barb elements (7) act in a similar manner as do the threads on a conventional bone screw and thus provide for depth positioning. Moreover, the barb elements at the same time secure the bone anchoring element and prevent it from sliding-out.

Abstract: A compression screw system, said compression screw system comprising: a compression screw comprising a shaft, a screw thread formed on said shaft at a distal location, and a bone-engaging feature formed on said shaft at a proximal location, wherein at least a portion of said shaft disposed between said screw thread and said bone-engaging feature is capable of being stretched; and a holding element connectable to said compression screw for releasably holding said at least a portion of said shaft in a stretched condition.

Abstract: Embodiments of the invention provide a bone screw device including a bone screw with a temporary encasement. In some embodiments, the temporary encasement comprises a biocompatible material that may be an osteoinductive, a hemostatic and or a bacteriocide. Some embodiments include a temporary encasement including a therapeutic. In some embodiments, the temporary encasement comprises a wax. In some embodiments, the screw head is substantially U-shaped. In some embodiments, the screw includes an extension tip extending from the screw shaft. Some embodiments of the invention include a system for percutaneous implantation of a bone screw including a screwdriver shaft rotatably coupled to a screw that includes a temporary encasement. In some embodiments, the screw shaft can be at least partially rotated by the screwdriver shaft. Some further embodiments further include a retractable sleeve at least partially surrounding the screwdriver shaft and the bone screw.

Abstract: A dynamic bone anchor includes an anchor member having first and second ends and a tubular section between the ends, a longitudinal axis extending from the first to second end, an outer surface, and a bone engagement structure for engaging a bone on at least a portion of the outer surface; and a longitudinal core member having a first portion and a second portion configured to be received in the tubular section and to connected to the anchor member, with the first portion configured to be spaced apart from the anchor member and movable with respect to it. The core member is made at least partially of a nickel-titanium (Ni—Ti) based shape memory alloy such that its shape after transitioning from a martensitic to austenitic phase is configured to result in a press-fit connection between the second portion and the anchor member with the second portion in the austenitic phase.

Abstract: A screw device for compressing and fixing together a proximal and distal bone part along a surgical axis comprising: a bone screw portion comprising an elongate body inscribed with bone screw threads at a leading end of an outer surface of said body; an elongate tubular torque stabilizer portion for spanning said bone parts and comprising one or more torsion stops to engage each bone part to limit rotational movement between the bone parts and a translation stop on said torque stabilizer to seat against a portion of the proximal bone to limit translation of said torque stabilizer portion along the surgical axis; and a compressor lock portion engaging the bone screw portion and torque stabilizer portion to draw said bone screw portion proximally along the surgical axis toward said translation stop therein compressing said bone parts together.

Abstract: Adjustable opening jacks with designs that incorporate a novel locking hinge mechanism and adjustable separation arms to achieve broader scopes of application, bone plate specificity, and variable bone size capability during various osteotomy procedures. The locking hinge mechanism constrains the upper body from moving in either the vertical plane or anterior-posterior (AP) slope trajectory depending on the mode of application. The opening jack has a configuration that allows for a straight and/or sloped opening.