Provided are an end tool of a surgical instrument and a surgical instrument for electrocautery including the same, and in particular, an end tool of a surgical instrument and a surgical instrument for electrocautery including the end tool that is capable of rotating in two or more directions and intuitively matching a movement of a manipulation portion, wherein the surgical instrument may be installed on a robot arm or manually operable in order to be used in laparoscopic surgery or other various surgeries.

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.

A deployment mechanism for selectively deploying and retracting an energizable member and/an insulative member relative to an end effector assembly of a surgical instrument includes one or more actuators, a clutch assembly, and a drive assembly. The clutch assembly is configured to couple to the actuator(s) to provide rotational motion in the first direction in response to such rotation of the actuator(s) and to decouple from the actuator(s) in response to rotation thereof in the second direction. The drive assembly is operably coupled to the clutch assembly and is configured to convert the rotational motion provided by the clutch assembly into longitudinal motion to translate the energizable member and/or insulative member from a storage position to a deployed position and to translate the energizable member and/or the insulative member from the deployed position back to the storage position.

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.

A minimally invasive heart stabilizer includes a guide tube, a revolute joint, a stabilizing end-effector, and a linkage. The guide tube is sized to allow insertion through an endoscopic cannula. The revolute joint is coupled to a distal end of the guide tube. The stabilizing end-effector is coupled to the revolute joint. The linkage has a distal end and a proximal end. The distal end is pivotally connected to the end-effector. The stabilizing end-effector includes two tissue engaging members in parallel alignment with one another. The two tissue engaging members are joined via an arrangement of links.

Methods and devices for using surgical devices with articulating end effectors are provided. Surgical devices with articulating end effectors can provide rotary driven pivoting of the end effector. In some embodiments, the device can include a handle, a first and a second tube extending from the handle, the second tube disposed within the first tube, and an end effector that includes a pair of distal jaws configured to move in response to rotation of the first tube about a longitudinal axis thereof and rotation of the second tube about a longitudinal axis thereof. The jaws can move in two different ways depending on whether the first and second tubes are rotating in a same direction as one another or in different ways than each other. The jaws can open/close and articulate using the same mechanical mechanism. The device can be powered, or the device can be non-powered.

A robotic surgical instrument comprising a shaft and end effector element connected by an articulation. The articulation comprises a first joint driveable by a first pair of driving elements. The first joint permits the end effector element to rotate about a first axis transverse to a longitudinal axis of the shaft, the rotation of the end effector element about the first axis bounded by an extreme rotation angle relative to the longitudinal axis. A second joint is driveable by a second pair of driving elements. A pulley arrangement constrains the second pair of driving elements, and comprises a first set of pulleys rotatable about the first axis, and a second set of pulleys located relative to the first set of pulleys such that at the extreme rotation angle the second pair of driving elements is retained in contact with both the first and second sets of pulleys.

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.

A surgical tool having an open-close end effector is to be provided. The surgical tool includes a shaft, a wrist that is connected to the end of the shaft and is rotatable about a first axis, a first jaw member and a second jaw member that are supported rotatably about a second axis with respect to the wrist, sets of first and second forward and backward cables that transmit forces for turning the first jaw member and the second jaw member, respectively, about the second axis, and a turning motion unit that generates a turning motion of the wrist about the first axis so that pre-tension of the set of first forward and backward cables and the set of second forward and backward cables does not change.

A medical treatment instrument of the present invention includes: a pair of opening and closing pieces; an opening and closing shaft section configured to hold the pair of opening and closing pieces so that the pair of opening and closing pieces are able to pivot relative to each other; a first gear fixed to either of the pair of opening and closing pieces to pivot about the opening and closing shaft section; a second gear which is able to rotate to transmit a rotational force to the first gear; a rotatable member fixed to the second gear coaxially with the second gear and having a diameter larger than a diameter of the second gear; and a power transmission member provided around an outer circumference of the rotatable member and configured to rotate the rotatable member.