Method of switching a cordless hand-held ultrasonic cautery cutting device
First Claim
1. A method for operating a surgical device, comprising:
- providinga control circuit operable to carry out at least two operational conditions of the surgical device; and
effecting the at least two operational conditions with a two-stage switch electrically connected to the control circuit, a first stage of the switch effecting a first of the at least two operational conditions and a second stage of the switch effecting a second of the at least two operational conditions different from the first operational condition, the two-stage switch having a variable resistance such that;
the first stage occurs when a first depression force is applied to the switch;
the second stage occurs when a second depression force greater than the first depression force is applied to the switch; and
a holding force lower than at least the second depression force is required to maintain the switch in the second stage.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for operating an ultrasonic, self-powered surgical device, includes the steps of connecting a self-contained power supply to a surgical device handle, providing a control circuit within at least one of the handle and the power supply, the control circuit being operable to carry out at least two operational conditions of the surgical device, and effecting the at least two operational conditions with a two-stage switch electrically connected to the control circuit, a first stage of the switch effecting a first of the at least two operational conditions and a second stage of the switch effecting a second of the at least two operational conditions different from the first operational condition.
-
Citations
18 Claims
-
1. A method for operating a surgical device, comprising:
-
providing a control circuit operable to carry out at least two operational conditions of the surgical device; and effecting the at least two operational conditions with a two-stage switch electrically connected to the control circuit, a first stage of the switch effecting a first of the at least two operational conditions and a second stage of the switch effecting a second of the at least two operational conditions different from the first operational condition, the two-stage switch having a variable resistance such that; the first stage occurs when a first depression force is applied to the switch; the second stage occurs when a second depression force greater than the first depression force is applied to the switch; and a holding force lower than at least the second depression force is required to maintain the switch in the second stage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
Specification