Surgery – Instruments – Electrical application
Reexamination Certificate
2000-03-06
2001-09-25
Peffley, Michael (Department: 3739)
Surgery
Instruments
Electrical application
C606S048000, C606S049000
Reexamination Certificate
active
06293945
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to electrosurgical devices for cutting and coagulation combined with suction and irrigation capability.
2. Description of the Related Art
In the past there have been electrosurgical devices which have been used for coagulation combined with suction. There have also been electrosurgical devices for cutting combined with suction. These devices may also provide fluids for irrigating the area being operated on by pumping fluids through the tubes normally used for suction.
It would be useful to have one tool for both electrical cutting and electrical coagulation while providing suction, the device having a small cross section for laparascopic or other microsurgery.
There have been no known devices that have combined electrosurgical cutting and coagulation with the suction so as to have both the cutting with suction and coagulation with suction in one tool.
SUMMARY OF THE INVENTION
The invention combines a retractable electrosurgical cutting electrode with an electrosurgical coagulation electrode and a suction or irrigation tube. A surgeon may now use one device having a small cross section for cutting, coagulating, mechanical disecting, irrigating and suction.
The device has a tube with an insulating sleeve, the tip of which is exposed for electrical coagulation. The tube lumen is used for aspiration and/or delivering fluids for irrigation or medication. Two aspiration suctions are available, a low vacuum for removing smoke and a higher vacuum for removing blood and other debris.
An electrical blade is extended from the lumen of the tube for cutting and dissection, and retracted into the lumen of the tube at other times. When the electrical cutting blade is retracted, the tip of the tube can be used for coagulation. Thus repeated cutting and coagulation steps are possible by extending and retracting the electrical blade.
The tube is preferably malleable and may have the cutting electrode extend from inside the lumen of the tube or from adjacent the tube. Alternatively, the tube may be extendable, moving over a stationary cutting electrode.
A thumb slide may be used in the movable blade embodiment to extend or retract the cutting blade. Likewise, in an alternative embodiment the thumb slide moves the tube such that the blade is either exposed or covered. The thumb slide engages detents which provide a tactile response and locks into a position indicating exposure or covering of the blade, thus reducing errors.
OBJECTS OF THE INVENTION
It is an object of the invention to provide a multifunctional electrosurgical instrument having a cutting electrode for cutting at desired times.
It is an object of the invention to provide a coagulation electrode and means for aspirating and/or irrigating the surgical site obviating the need for instrument exchanges to accomplish such functions.
It is an object of the invention to extend or retract the cutting electrode for use or at the end of an electrosurgical coagulation electrode.
It is an object of an alternative embodiment of the invention to extend or retract the tube over the cutting electrode.
It is an object of the invention to combine the suction tube, the coagulation tube electrode and the cutting electrode in one tube for compactness so as to permit open procedures, laparascopic surgery or microsurgery.
It is an object of the invention to provide a flexible tube for desired shaping to the required use.
It is an object of the invention to provide a low suction vacuum for removing smoke and a higher suction vacuum for removing debris.
Other objects, advantages and novel features of the present invention will become apparent from the following detailed description of the invention when considered in conjunction with the accompanying drawing.
REFERENCES:
patent: 4116198 (1978-09-01), Roos
patent: 4919129 (1990-04-01), Weber, Jr. et al.
patent: 5085657 (1992-02-01), Ben-Simhon
patent: 5197963 (1993-03-01), Parins
patent: 5318565 (1994-06-01), Kuriloff et al.
patent: 5360427 (1994-11-01), Majlessi
patent: 5395312 (1995-03-01), Desai
patent: 5401274 (1995-03-01), Kusunoki
patent: 5449356 (1995-09-01), Walbrink et al.
patent: 5735849 (1998-04-01), Baden et al.
patent: 5895386 (1999-04-01), Odell et al.
patent: 5913857 (1999-06-01), Ritchart et al.
patent: 5968042 (1999-10-01), Ernster
patent: 5989249 (1999-11-01), Kirwan, Jr.
Latterell Scott T.
Parins David J.
Everest Medical Corporation
Nikolai & Mersereau , P.A.
Peffley Michael
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