Finger operated switch for controlling a surgical handpiece
First Claim
1. A system for implementing surgical procedures comprising:
- an ultrasonic surgical handpiece having an end-effector;
a generator console for controlling the handpiece;
an electrical connection connecting the handpiece and the console, wherein the console sends a drive current to drive the handpiece which imparts ultrasonic longitudinal movement to the end-effector; and
a finger-operated switch provided on a housing of the handpiece, the switch activating the handpiece at a first power level if a sensor monitored pressure value on the switch reaches a high threshold, deactivating the handpiece if the sensor monitored pressure value reaches a low threshold, and provides its switching functionality according to a lagging effect as the monitored pressure on the switch is changed, and the hand piece operating at a level proportional to the sensor monitored pressure value on the finger-operated switch.
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Accused Products
Abstract
According to the invention, a finger-operated switch for activating and operating an ultrasonic surgical handpiece is provided. The power output of the surgical handpiece is responsive and proportional to the pressure applied to the finger-operated switch. The finger-operated switch includes, but not limited to, force sensitive resistors whose resistance is proportional to the force applied by the finger of the human operator of the surgical handpiece, force sensitive capacitors whose capacitance is proportional to the pressure, deflection or compression of the insulation layer between two electrodes or is proportional to the spacing between the two conductive layers, strain gauges mounted underneath or integral to the housing of the surgical handpiece such that the pressure applied thereto results in an output change in the strain gauges, magnets or ferromagnets encased or embedded in an elastomer with a sensor inside the surgical handpiece that detects the field strength of the magnet and monitors changes relative to the force applied to the handpiece housing, and piezo film or piezo ceramic whose charge or voltage is proportional to the force applied.
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Citations
63 Claims
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1. A system for implementing surgical procedures comprising:
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an ultrasonic surgical handpiece having an end-effector;
a generator console for controlling the handpiece;
an electrical connection connecting the handpiece and the console, wherein the console sends a drive current to drive the handpiece which imparts ultrasonic longitudinal movement to the end-effector; and
a finger-operated switch provided on a housing of the handpiece, the switch activating the handpiece at a first power level if a sensor monitored pressure value on the switch reaches a high threshold, deactivating the handpiece if the sensor monitored pressure value reaches a low threshold, and provides its switching functionality according to a lagging effect as the monitored pressure on the switch is changed, and the hand piece operating at a level proportional to the sensor monitored pressure value on the finger-operated switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A system for implementing surgical procedures comprising:
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an ultrasonic surgical handpiece having an end-effector;
a generator console for controlling the handpiece;
an electrical connection connecting the handpiece and the console, wherein the console sends a drive current to drive the handpiece which imparts ultrasonic longitudinal movement to the end-effector; and
a finger-operated switch provided on a housing of the handpiece, the switch activating the handpiece at a first power level and deactivating the handpiece if a low threshold is reached, and provides its switching functionality according to a lagging effect as the monitored pressure on the switch is changed, and the handpiece operating at a level proportional to a sensor monitored pressure value on the finger-operated switch. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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- 61. An ultrasonic surgical handpiece having a housing with a finger-operated switch located thereon, the switch having a sensor for monitoring pressure thereon so that the handpiece is placed in an operative mode when the sensor monitors a pressure above a first threshold and is placed in another operative mode when the pressure is below a second threshold, and provides its switching functionality according to a lagging effect as the monitored pressure on the switch is changed, and the handpiece operates at a level proportional to a pressure value on the finger-operated switch that is monitored by the sensor.
Specification