Surgery – Instruments – Blood vessel – duct or teat cutter – scrapper or abrader
Patent
1993-01-28
1995-06-13
Kruter, Jerome L.
Surgery
Instruments
Blood vessel, duct or teat cutter, scrapper or abrader
606170, H61B 1732
Patent
active
054237998
ABSTRACT:
A medical device for removing material from a body vessel comprising a tube, a drive shaft extending through the tube, a stepped root mounted to the drive shaft, a rotatable screw having a distal and proximal end, the screw extending outward from the stepped root to form a helix with an edge, the rotatable screw having a tip and sharp outer cutting edges having a tapered diameter along its length to a minimum diameter at its distal end, and a generally cylindrical housing enclosing the sharp edge of the screw so that the tip of the screw extends outside the housing and enters the tissue, and the sharp edge, in cooperation with the housing, cuts the tissue. The housing has a leading inner edge so that the tissue is removed from the vessel as it enters the housing by cooperation of the screw and the leading inner edge.
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Kruter Jerome L.
Medtronic Inc.
Patton Harold R.
Plunkett Dianne M. F.
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