A transection device including a hollow tubular body extending from a proximal end to a distal end. A plurality of stabilizing members extend from the distal end of the tubular body and define a reduced diameter opening into a receiving chamber adjacent the distal end of the tubular body. A blade is positioned within the tubular body and moveable between an initial position within the tubular body to an extended position wherein at least a portion of the blade extends into the receiving chamber. A depressible member extends from the proximal end and is configured to move the blade between the initial position and the extended position. A compression member may be positioned between the plunger member and the blade.

A method of anchoring soft tissue to a suitable bone site, using a soft suture anchor, includes steps of disposing the soft suture anchor on a shaft of an inserter, and securing a proximal end of a tensioning suture limb, extending proximally from the soft suture anchor, to structure in a handle of the inserter, so that it is maintained in place at a first level of holding tension (T.sub.hold). The inserter shaft is inserted into a hone hole at a desired procedural site, so that the soft suture anchor is positioned at a location where it is to be anchored. A further step involves actuating a control mechanism in the inserter handle to move the structure proximally to apply a second level of deployment tension (T.sub.load) to the tensioning suture limb.

A medical implant (1) designed to enable bony fusion between a first bone (20) and a second bone (21), said implant being in the form of an elongate part comprising, extending along the longitudinal axis of the part, a head (2) and a body (3) spaced apart from each other by a connection zone (4) connecting the head (2) to the body (3), said head (2) being suitable for being inserted into the first bone (20), said body (3) being suitable for being inserted into the second bone (21), said body (3) being a hollow body that is slotted longitudinally along at least a portion of its length in order to define at least three elastically deformable longitudinal tabs (5) by means of which said body (3) is suitable for being inserted into the second bone (21). Each longitudinal tab (5) of the body (3) is an arcuate tab (5) that presents an outer face (6), i.e. directed towards the outside of the body (3), extending longitudinally in curved manner with curvature having its concave side directed towards the outside of the body (3).

A method of controlling motor velocity in a surgical instrument is disclosed. The surgical instrument includes a displacement member, a motor coupled to the displacement member, a control circuit coupled to the motor, a position sensor coupled to the control circuit, and a timer coupled to the control circuit. The method includes receiving a first position of a displacement member from a position sensor, starting a timer, advancing the displacement member to a second position by setting a motor velocity to a first velocity, receiving the second positon from the position sensor, stopping the timer when the displacement member reaches the second position, receiving elapsed time from the timer, wherein the elapsed time is the time taken by the displacement to move from the first position to the second positon, and controlling, by the control circuit, velocity of the motor based on the elapsed time.

A calcification treatment device includes an outer body (12) including an inner cavity and at least one outer calcification treatment member (16) facing towards the inner cavity. An inner body (18) is movable into the inner cavity and includes at least one inner calcification treatment member (20) facing towards an inner surface of the outer body. One of the outer and inner calcification treatment members includes an expandable treatment member and one of the outer and inner calcification treatment members includes one or more fracturing elements capable of fracturing a calcification of a valve tissue.

A surgical anvil assembly for use with a circular stapling instrument includes an anvil center rod defining a longitudinal axis and an anvil head pivotally coupled to the anvil center rod and movable between a first operative condition and a second tilted condition. The anvil assembly further includes a locking assembly configured to selectively lock the anvil head in each of the first and second conditions.

A computer-assisted system comprises a manipulator configured to support a tool, a lockable joint, and a controller. The manipulator extends distally from a base and comprises a distal portion. The lockable joint is coupled to the base and located proximally relative to the base. The controller is operably coupled to a powered joint. The powered joint is located distally relative to the base. The controller is configured to perform operations. The operations comprise: driving the powered joint to move the distal portion while the lockable joint is locked, and driving the powered joint to move the base while the lockable joint is unlocked and a position of the distal portion is externally maintained. A method includes processes for operating a computer-assisted system. A method includes determining a desired motion envelope for a tool supported by a manipulator, and positioning a base of the manipulator based on the desired motion envelope.

A motorized surgical instrument is disclosed. The surgical instrument includes a displacement member configured to translate over a plurality of predefined zones. A motor comprising a shaft is coupled to the displacement member. A control circuit is coupled to the motor. A position sensor is coupled to the control circuit to monitor the rotation of the shaft. A timer circuit is coupled to the control circuit. The control circuit is configured to receive rotations of the shaft in a current zone defined by a set rotation interval, measure time at a set position of the rotation interval, wherein the measured time is defined as the time taken by the displacement member to traverse the rotation interval based on a predetermined number of shaft rotations, and set a command velocity of the displacement member for a subsequent zone based on the measured time in the current predefined zone.

A medical device has a rotatable drive shaft, a rotary body that includes a cutting edge for applying a cutting force to a stenosed site, and that is disposed on a distal side of the drive shaft so as to be rotated in conjunction with rotation of the drive shaft, a switching portion whose distal end is disposed at a position protruding from the cutting edge, and a holding portion that holds the switching portion so as to move the switching portion on the same plane as the cutting edge or to a position away from the stenosed site beyond the cutting edge in accordance with a pushing force, when the switching portion is pushed against the stenosed site.

A preoperative surgical planning system uses a head-mounted device to execute a preoperative surgical simulation whereby a virtual tool and a virtual anatomical model are provided on the display of the head-mounted device. The virtual tool is tracked relative to the virtual anatomical model in the preoperative surgical simulation in which the virtual tool is moveable in response to receipt of a control input from the wearer of the head-mounted device and wherein the virtual tool is configured to remove a portion of the virtual anatomical model. A planning parameter is automatically generated based on tracking of the virtual tool relative to the virtual anatomical model in the preoperative surgical simulation. The generated planning parameter is stored for future retrieval by a surgical system to facilitate intraoperative surgery based on the generated planning parameter.