Fluid control electrosurgical device
AssigneeLucas DeOliveira
InventorsEgidio L. DeOliveira, John R. Scoville
Life of this patent
Estimating the term…
Abstract
A control device for use with an electrical appliance. The device comprises a handpiece having at least one exhaust port which is connected to positive fluid pressure source. Blocking of the exhaust port will operate an appropriate switch means for controlling the electrical appliance.
Claims10
A control device for use with an electrosurgical generator having two different electrical output modes comprising:
- (a) a handpiece having at least two exhaust ports;
- (b) a pressure source for providing a continuous flow of a fluid to each of said at least two exhaust ports;
- (c) a transmission tube having at least two passageways for connecting said pressure source to each of said at least two exhaust ports of said handpiece;
- (d) a fluid pressure responsive switch means connected by said passageways to said exhaust ports and a pressure source for activating one of said output modes in response to the blockage of at least one of said exhaust ports;
- and
- (e) a blade at one end of said handpiece, said blade being electrically connected to the output of said electrosurgical generator.
An electrosurgical handpiece for controlling the status of an electrosurgical generator having two different electrical output modes comprising at least two exhaust ports for allowing passage of a fluid, at least one input port and a corresponding passageway connecting said input port to each of said exhaust ports, and a blade, said input port capable of being connected to a continuous flowing positive fluid pressure, said blade being electrically connected to the output of said electrosurgical generator.
An electrosurgical instrument which contains no moving parts and is capable of selectively providing electrical energy from an electrosurgical generator to a blade for cutting, coagulation and the like which comprises:
- (a) a body portion having at least one exhaust port, said body having a first end which contains an electrical receptacle, a second end and an intermediate portion therebetween;
- (b) a cable incorporating at least one open fluid transmission tube and one electrical contact wire within and extending throughout the length of said cable, and an electrical connector plug located at the distal end of said cable, incorporating a jack type electrical termination for said wire, and at least one passageway connecting the transmission tube to the face of the plug where the said jack is located;
- (c) means for connecting the distal end of said cable to a continuous flow of fluidic pressure level air supply and electrical energy switching source;
- (d) said proximal end of said cable being connected to said second end of said body portion so as to provide a substantially sealed pathway for the flow of fluidic pressure to said exhaust port;
- (e) a removable blade extending distally from said first end of said body portion and in electrical contact with said electrical receptacle, which is electrically connected to the output of an electrosurgical generator, said blade extending outwardly from said housing;
- (f) a remote source for providing a continuous flow of said fluidic air pressure;
- and
- (g) a remote switching means for controlling the electrical status of said electrosurgical generator.
Dependencies are inferred from the claim text.