METHODS AND DEVICES FOR CONTROLLING MOTORIZED SURGICAL DEVICES

摘要

Methods and devices for controlling motorized surgical devices are provided. In general, the methods and devices can allow a surgical device to grasp and cut tissue. In some embodiments, the device can include at least one sensor and a motor, and an output of the motor can be configured to be adjusted based at least in part on an output from the at least one sensor. The output of the motor can be configured to provide power for translation of a cutting element along an end effector of the device. Adjusting the motor's output can cause the cutting element to translate through the end effector at different speeds, thereby allowing the cutting element to cut through tissue being grasped by the end effector at different speeds.

主权项

1. A surgical device, comprising:
a proximal portion; an elongate shaft extending distally from the proximal portion; an end effector at a distal end of the elongate shaft, the end effector including first and second jaws configured to grasp tissue between facing engagement surfaces thereof, the end effector being configured to move between a closed position, in which a minimum gap exists between the facing engagement surfaces when no tissue is being grasped by the end effector, and an open position in which another, larger gap exists between the facing engagement surfaces; a first conductive member configured to directly engage the grasped tissue and apply energy to the grasped tissue; and a second conductive member configured to directly engage the grasped tissue when the first conductive member applies the energy thereto, the second conductive member being configured to maintain the minimum gap when the first and second jaws are in the closed position.