Method of using a multimodality probe with extendable bipolar el

Details Method of using a multimodality probe with extendable bipolar el Method of using a multimodality probe with extendable bipolar el

1994-09-08

1995-08-15

Cohen, Lee S.

Surgery

Instruments

Light application

606 51, 604 35, A61B 1736, A61B 1739

Patent

active

054414989

ABSTRACT:
A surgical probe, and procedure using the same, enabling a surgeon to cut body tissue by delivering energy, such as a laser beam, to the body tissue and without removing the instrument to cauterize the body tissue by direct application of electric current. The surgical probe includes an elongated member having a fiber optic positioned on a longitudinal axis of the elongated member and pair of elongated electrodes that span an entire length of the elongated member. The elongated electrodes slide lengthwise in a direction parallel to the longitudinal axis. During cutting procedures, the distal ends of the electrodes are in a retracted position not beyond the distal end of the elongated member, and during cauterization procedures, the distal ends of the electrodes are in an extended position beyond the distal end of the elongated member. In a preferred embodiment, the distal ends of the electrodes are pre-bent so as to converge toward each other as they are extended beyond the distal end of the elongated member.

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Kinura et al, "Use of Gas Jet . . . " IEEE Trans on BioMed Eng., vol. BME-25, No. 3, May 1978, pp. 218-224.

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