Surgery – Instruments – Electrical application
Patent
1993-08-16
1995-08-22
Cohen, Lee S.
Surgery
Instruments
Electrical application
606 52, A61B 1739
Patent
active
054434637
ABSTRACT:
A method and an apparatus for selectively coagulating blood vessels or tissue containing blood vessels involves the placement of the blood vessels or tissue containing blood vessels between the prongs of a forceps with the jaws of the forceps containing a plurality of electrodes which are energized by radio-frequency power. A plurality of sensors are associated with the electrodes and in contact with the vessels or tissue in order to measure the temperature rise of the tissue or blood vessels and to provide a feedback to the radio-frequency power in order to control the heating to perform coagulation of the vessels or tissue. In a further development, the upper prong of the device is split into two parts with a cutting blade between the two upper parts in order to provide for cutting of the coagulated vessels subsequent to the coagulation. The cutting may be accomplished either mechanically or with an electrosurgical cutting device.
REFERENCES:
patent: 4655216 (1987-04-01), Tischer
patent: 5122137 (1992-06-01), Lennox
patent: 5190541 (1993-03-01), Abele et al.
patent: 5277201 (1994-01-01), Stern
Sugita et al., "Bipolar coagulator . . . thermocontrol", J. Neurosurg., vol. 41, Dec. 1974, pp. 777-779.
Marion Robert L.
Soderstrom Richard M.
Stern Roger A.
Sullivan Vincent N.
Cohen Lee S.
Vesta Medical, Inc.
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