Arthroscopic surgical instrument with cauterizing capability

Details Arthroscopic surgical instrument with cauterizing capability Arthroscopic surgical instrument with cauterizing capability

1993-05-14

1994-11-15

Pellegrino, Stephen C.

Surgery

Instruments

Electrical application

606 49, 606170, 604 22, A61B 1732

Patent

active

053643950

ABSTRACT:
An instrument capable of selectively cutting or cauterizing tissue includes a handle and an elongated electrically conductive probe with a longitudinally extending lumen communicating with the handle. The distal end of the probe has an aperture formed therethrough between the lumen and the exterior of the probe. An elongated drive shaft is disposed within the lumen for rotation about the longitudinal axis of the drive shaft. A cutting tool is positioned on the shaft opposite the aperture. An electrically insulative layer is disposed on the exterior of the probe extending from the proximal end of the probe to the periphery of a preselected region on the distal end of the probe. The preselected region is selectively couplable to a power source to permit cauterization. An alternate embodiment employs an electrically insulative probe and an embedded electrically conductive pathway coupled to the preselected region. Yet another embodiment utilizes an electrically insulative sleeve selectively disposable about the exterior of the probe. An electrocautery contact is exposed at the outer surface of the distal end of the sleeve and is electrically coupled through the probe, or through an electrical pathway embedded in the sleeve, in order the couple the contact to a power source.

REFERENCES:
patent: 3828780 (1974-08-01), Morrison, Jr.
patent: 3945375 (1976-03-01), Banko
patent: 4815462 (1989-03-01), Clark
patent: 4850354 (1989-07-01), McGurk-Burleson et al.

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