A surgical tool can include a handle, an outer tube, an end effector, an inner tube, and a guide tube. The outer tube can be connected to the handle and can extend along a longitudinal axis. The end effector can be connected to the outer tube. The inner shaft can be located within the outer tube and can extend along the longitudinal axis. The inner shaft can be connected to the end effector and the outer shaft. The handle can be operable to translate the inner shaft with respect to the outer tube to operate the end effector. The guide tube can be located within the outer tube between the handle and the end effector. The guide tube can include a conduit extending therethrough.

A surgical instrument includes a housing, a shaft extending therefrom, an end effector assembly supported by the shaft, a movable handle, and a drive assembly. The drive assembly includes a translatable drive member for actuating the end effector assembly, and a torsion spring including first and second legs. The first leg is configured to translate through the housing in response to movement of the movable handle relative to the housing. The second leg is configured to translate through the housing in cooperation with the first leg to move the drive member longitudinally when a force acting on the drive member is less than a threshold force, and to remain in fixed position, thereby tensioning the torsion spring and retaining the drive member in fixed position when the force acting on the drive member is equal to or exceeds the threshold force.

An end effector for stapling and cutting an anatomical structure includes an anvil, a cartridge, and a blade. The anvil has an anvil face and a plurality of staple pockets positioned on the anvil face. The cartridge has a cartridge face defining a cartridge blade channel, the cartridge being configured to retain a plurality of staples. Each of the plurality of staples comprises a first staple leg, a second staple leg, and a crown connecting the first and second staple legs and having a midpoint. Each of the plurality of staples comprises an open staple configuration and a closed staple configuration where a first portion of the first staple leg and a second portion of the second staple leg are bent relative to the crown such that the first portion of the first staple leg and the second portion of the second staple leg cross the midpoint of the crown.

A staple cartridge assembly for use with a surgical stapler. The assembly has a cartridge body having a support portion with a plurality of staple cavities with openings. There is also a plurality of staples, wherein at least a portion of each the staple is removably stored within a staple cavity. Each the staple is movable between an unfired position and a fired position, and is deformable between an unfired configuration and a fired configuration. The assembly also includes a compressible tissue thickness compensator configured to be captured within the staples. The compressible tissue thickness compensator at least partially covers the staple cavity openings. The compressed tissue thickness compensator is configured to assume different compressed heights within different the staples. The compressible tissue thickness compensator comprising a lyophilized foam having an anti-microbial agent embedded therein.

An self-actuating grasping device and corresponding method of using the grasping device for retrieving a foreign object from a location in a patient's body. The grasping device has a handle with a self-actuating mechanism, an actuator on the handle coupled to an actuator wire, an elongated shaft member extending distally from the handle with the actuation wire coaxially disposed therein and opposing jaws at a distal end of the elongated shaft member that are coupled to the actuation wire and pivot between open and closed configurations. The self-actuating mechanism has a bias that imparts a closing force to the opposing jaws through the actuation wire. Actuation of the actuator is configured to impart an opening force to the opposing jaws through the actuation wire.

A medical device is provided. The medical device includes an elongated device body having a steerable portion including a plurality of segments. The segments are co-axially mounted over at least one elongated elastic element which is configured for limiting rotation of the segments with respect to each other. The medical device also includes a control wire running alongside the elongated device body and being unrestrained at the steerable portion such that tensioning of the control wire angles the steerable portion from a longitudinal axis of the elongated device body and deflects the control wire away from the steerable portion.

A system for use in surgery includes a central body, a visualization system operably connected to the central body, a video rendering system, a head-mounted display for displaying images from the video rendering system, a sensor system, and a robotic device operably connected to the central body. The visualization system includes at least one camera and a pan system and/or a tilt system. The sensor system tracks the position and/or orientation in space of the head-mounted display relative to a reference point. The pan system and/or the tilt system are configured to adjust the field of view of the camera in response to information from the sensor system about changes in at least one of position and orientation in space of the head-mounted display relative to the reference point.

An actuator handle for a hand-held surgical tool, the actuator handle comprising: a body part adapted to be gripped by a user's hand, the body part having an end effector mounted or mountable thereon; an actuating member alongside the body part and arranged to be operably moveable by a single finger of the said hand, in a substantially linear manner between first and second positions relative to the body part, for actuating the end effector in use; and one or more coupling components coupled to the actuating member, for mechanically transmitting motive force from the actuating member to the end effector upon movement of the actuating member between the first and second positions by the user in use. A surgical clip, for example for use in aneurysm clipping, is also provided, the clip comprising: first and second clipping arms that are mutually openable and closable; biasing means arranged to resiliently bias the first and second clipping arms into a closed configuration; and first and second engagement fixtures respectively coupled to the first and second clipping arms and arranged such that first and second gripping arms of a complementary surgical clip deployment tool can grip the clip and open the clipping arms by applying a lateral force to the first and second engagement fixtures; wherein each of the first and second engagement fixtures comprises at least part of a ball or at least part of a loop or cup, with which each of the arms of said surgical clip deployment tool can engage in a substantially ball-and-socket manner.

Medical devices including a housing, an actuator, a body having a passageway extending through the body, a drive shaft extending through the passageway, and a clip coupled to the body and the drive shaft to fix the body relative to the drive shaft. The medical device further including features to couple the clip to at least one of the body and/or the drive shaft such that back out of the clip is inhibited.

A staple cartridge comprising a cartridge deck, a longitudinal slot defined within the staple cartridge, staple cavities defined in the deck, and a tissue thickness compensator is disclosed. The tissue thickness compensator comprises lumens. Each of the lumens comprise a cross-section and are formed by a tubular element. The lumens are laterally-oriented and spaced on the cartridge deck along the longitudinal axis of the staple cartridge. Each lumen extends across the width of the staple cartridge such that each lumen overlaps a plurality of the staple cavities and the longitudinal slot. The lumens are configured to collapse when pressure is applied to the lumens during a firing motion.