Motor control and feedback in powered surgical devices
First Claim
Patent Images
1. A surgical device, comprising:
- a proximal handle portion that includes a motor;
a distal end effector coupled to the handle portion;
a cutting element configured to cut a tissue engaged by the end effector, the motor being configured to supply power that moves the cutting element through the tissue; and
a motor control mechanism configured to cause the amount of the power to dynamically change in response to a change in applied pressure of a manual user input when the cutting element is moving, and the motor control mechanism being configured to cause the amount of the power to remain constant in response to an applied pressure of the manual user input being continually applied at a steady rate when the manual user input and the cutting element are moving.
4 Assignments
0 Petitions
Accused Products
Abstract
Surgical devices and methods are described herein that provide improved motor control and feedback, thereby combining advantages of manually-operated and powered surgical devices. In one embodiment, a surgical device includes a proximal handle portion that includes a motor, a distal end effector coupled to the handle portion, and a cutting element configured to cut tissue engaged by the end effector, wherein the motor is configured to supply power that moves the cutting element. The device also includes a motor control mechanism configured to cause the amount of the power to dynamically change in response to a manual user input when the cutting element is moving.
-
Citations
10 Claims
-
1. A surgical device, comprising:
-
a proximal handle portion that includes a motor; a distal end effector coupled to the handle portion; a cutting element configured to cut a tissue engaged by the end effector, the motor being configured to supply power that moves the cutting element through the tissue; and a motor control mechanism configured to cause the amount of the power to dynamically change in response to a change in applied pressure of a manual user input when the cutting element is moving, and the motor control mechanism being configured to cause the amount of the power to remain constant in response to an applied pressure of the manual user input being continually applied at a steady rate when the manual user input and the cutting element are moving. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A surgical method, comprising:
-
engaging a tissue with a distal end effector of a surgical device, the surgical device comprising a cutting element configured to cut a tissue engaged by the end effector, a proximal handle portion that includes a motor configured to supply power that moves the cutting element through the tissue, the distal end effector coupled to the handle portion, and a motor control mechanism configured to cause the amount of the power to dynamically change in response to a change in applied pressure of a manual user input when the cutting element is moving, and the motor control mechanism being configured to cause the amount of the power to remain constant in response to an applied pressure of the manual user input being continually applied at a steady rate when the manual user input and the cutting element are moving; causing the motor of the device to supply power to the cutting element of the device such that the cutting element moves through the tissue so as to cut the tissue; and when the cutting element is moving, detecting a change in a magnitude of a manual user force being applied to the manual user input, and causing an amount of the power supplied by the motor to dynamically change in response to the detected change. - View Dependent Claims (10)
-
Specification