A stone retrieval device includes a sheath and a stone retrieval basket that includes a distal region with a plurality of basket wires and a proximal region with one or more core wires. The stone retrieval basket is contained within the sheath and is movable out a distal opening of the sheath to cause the plurality of basket wires to open into a basket shape. The stone retrieval device further includes a lock mechanism that locks the position of the stone retrieval basket with respect to the position of the sheath and a basket force controller that includes a first control stage and a second control stage. The first control stage includes a sensor for measuring force on the stone retrieval basket when the lock mechanism is in an unlocked position, and the second control stage includes a sensor for measuring force on the stone retrieval basket when the lock mechanism is in a locked position. The stone retrieval device further includes an automatic release mechanism that releases the stone retrieval basket when the force on the stone retrieval basket exceeds a predetermined maximum force.

A method comprises providing an articulation tool including an articulation mechanism comprising a proximal link and a distal link, end effector, elongated shaft, rotating member, and an articulation lock comprising a first lock configured to prevent pivoting of the elongated shaft about a yaw axis, a second lock configured to prevent pivoting about a pitch axis, and an actuator to actuate both locks simultaneously. The method further comprises driving movement of the proximal link which causes corresponding movement of the distal link, adjusting the actuator between an unlocked configuration and a locked configuration in which the links and end effector are held in a fixed orientation with respect to the elongated shaft, and driving rotation of the rotating member which causes rotation of the elongated shaft while the links and end effector are held in the fixed orientation and rotation of the end effector about the end effector longitudinal axis.

An adapter assembly for connecting an end effector to an actuation assembly includes a base member defining a plurality of notches spaced at least partially about a circumference of the base member, a handle supported on the base member and rotatable about a longitudinal axis of the base member, and a latch mechanism supported on the handle assembly and selectively engageable with the base member. The latch mechanism includes a button member and a locking member. The button member is movable between a first position in which the locking member is received within one of the plurality of notches to lock the handle relative to the base member, and a second position in which the locking member is spaced from the plurality of notches to unlock the handle relative to the base member.

A surgical instrument includes a steering unit capable of articulation and a locking device connected to the steering unit and configured to lock or unlock at least any one of a pitch motion or a yaw motion of the steering unit, in which the locking device includes a first body part coupled to the steering unit, a second body part coupled to the steering unit and capable of moving relative to the first body part, and a locking unit capable of moving between the first body part and the second body part and simultaneously contacting the first body part and the second body part.

An assembly for fastening tissue is disclosed. The assembly may comprise a first jaw comprising a cartridge, wherein the cartridge comprises a plurality of fasteners. The plurality of fasteners comprises a first fastener comprising a first height and a second fastener comprising a second height, wherein the second height is different than the first height. The assembly further comprises a second jaw, wherein at least one of the first jaw and the second jaw is movable relative to the other. The second jaw comprises a plurality of fastener-engaging portions. The plurality of fastener-engaging portions comprises a first fastener-engaging portion and a second fastener-engaging portion. The assembly further comprises a compressible layer intermediate the first jaw and the second jaw.

This invention is directed to a medical device having a longitudinal axis, and including a handle and a catheter. The handle can include a body having a proximal end and a distal end, an actuator moveably coupled to the body, and a handle control member coupled to the actuator, wherein the actuator can be configured to move relative to the body to move the handle control member. The catheter can include a shaft having a proximal end and a distal end, wherein the proximal end of the shaft and the distal end of the body can be configured for releasable coupling. The catheter can also include a steering section located along the shaft and a catheter control member coupled to the steering section, wherein the catheter control member can be configured to move relative to the shaft to move the steering section relative to the longitudinal axis. The medical device can also include a securing member configured to move relative to at least one of the handle and the catheter to releasably couple the handle control member to the catheter control member.

The invention relates to a completely mechanical laparoscopic surgical instrument which can be disposed of after a single use or which can be sterilized and re-used more than once. The instrument essentially comprises: a gripping zone provided with two gripping elements (2, 3) hinged to one another by means of a pivot shaft (4), a working tool (30) provided with two jaws hinged to one another by means of a pivot shaft, and an actuation mechanism that can transmit movement from the gripping zone to the working tool (30). According to the invention, the tool can adopt multiple positions and/or orientations during its use with the assistance of substantially annular bodies that are coupled to connecting rods associated with the gripping elements.

A surgical instrument includes a steering unit capable of articulation and a locking device connected to the steering unit and configured to lock or unlock at least any one of a pitch motion or a yaw motion of the steering unit, in which the locking device includes a first body part coupled to the steering unit, a second body part coupled to the steering unit and capable of moving relative to the first body part, and a locking unit capable of moving between the first body part and the second body part and simultaneously contacting the first body part and the second body part.

A surgical instrument including a handle, a hollow shaft, and an end effector coupled to a distal end of the hollow shaft, the end effector being operatively connected to the handle through operating means extending within the hollow shaft. A multiaxial joint couples a distal end of the handle to a proximal end of the hollow shaft, the multiaxial joint allowing multiaxial rotation of the hollow shaft in relation to the handle. The multiaxial rotation includes rotation of the hollow shaft around a center axis of the hollow shaft, and rotation in at least two planes in relation to the distal of the handle.

A mechanical teleoperated device for remote manipulation includes a slave unit having a number of slave links interconnected by a plurality of slave joints; an end-effector connected to the slave unit; a master unit having a corresponding number of master links interconnected by a plurality of master joints; and a handle connected to a distal end of the master unit. The device further includes first device arranged to kinematically connect the slave unit with the master unit, second device arranged to kinematically connect the end-effector with the handle, and a mechanical constraint device configured to ensure that one master link of the master unit is guided along its longitudinal axis so that the corresponding slave link of the slave unit always translates along a virtual axis parallel to the longitudinal axis of the guided master link in the vicinity of the remote manipulation when the mechanical teleoperated device is operated.