SURGICAL DEVICES HAVING CONTROLLED TISSUE CUTTING AND SEALING

摘要

Various surgical devices and methods are provided for monitoring and regulating tissue compression and cutting to improve tissue effect. In general, these devices include a handle portion, an elongate shaft, and an effector disposed at a distal end of the shaft and configured to engage tissue. In one embodiment, one or more sensors can be positioned at various locations on the device and can determine a force applied to tissue engaged by the end effector. When the force exceeds a threshold, a notification signal can be issued to a user. In another embodiment, a sensor can determine an amount of current moving between jaws of the end effector and a controller can slow a speed of the cutting element when the sensed current exceeds a threshold amount.

主权项

1. A surgical device, comprising:
a proximal handle portion that includes a motor; an elongate shaft extending distally from the handle portion; an end effector including first and second jaws disposed at a distal end of the elongate shaft and configured to engage tissue therebetween; an actuator configured to receive an input of pressure from a user that causes the motor to provide power to cause at least one of the first and second jaws to move such that a distance between the first and second jaws is reduced and to advance the cutting element; at least one sensor disposed on at least one of the jaws, the sensor being configured to determine a force applied to tissue disposed between the jaws when the jaws are caused to compress tissue disposed therebetween; and a controller configured to determine when the force exceeds a predetermined threshold and, if the force is in excess of the predetermined threshold, to cause a notification signal to be issued to a user.