Laparoscopic suturing instrument with manual drive

摘要

A suture needle driving instrument comprises a shaft, an end effector, and a handle assembly. The end effector is located at the distal end of the shaft and includes a pair of grasping arms operable to grasp and release a needle. The handle assembly comprises a trigger-operated actuation assembly that is operable to rotate a second grasping arm relative to the shaft. The trigger-operated actuation assembly may include a trigger and a trigger gear assembly that is operable to rotate the second grasping arm. A clutch assembly may also be included to selectively couple a drive shaft associated with the second grasping arm to another shaft. The handle assembly may further include a toggle actuation assembly that is operable to grasp and release a needle with the grasping arms. A locking feature may be included to prevent use of the toggle actuation assembly until trigger-operated actuation assembly has been operated.

主权项

1. An apparatus comprising:
(a) a shaft, wherein the shaft has a distal end and a proximal end; (b) an end effector located at the distal end of the shaft, wherein the end effector comprises:
(i) a first needle grasping member, and(ii) a second needle grasping member,wherein the first needle grasping member and second needle grasping member are each operable to grasp and release a suture needle; and (c) a handle assembly coupled to the proximal end of the shaft, the handle assembly comprising a trigger-operated actuation assembly, wherein the trigger-operated actuation assembly is operable to:
(i) actuate the first needle grasping member to selectively grasp and release the suture needle,(ii) actuate the second needle grasping member to selectively grasp and release the suture needle, and(iii) rotate the second needle grasping member relative to the shaft and the first needle grasping member about an axis that is parallel to the longitudinal axis of the shaft as the first needle grasping member remains stationary.