Surgery – Instruments – Blood vessel – duct or teat cutter – scrapper or abrader
Patent
1990-12-17
1992-05-12
Rosenbaum, C. Fred
Surgery
Instruments
Blood vessel, duct or teat cutter, scrapper or abrader
606180, 604 22, A61B 1732
Patent
active
051123452
ABSTRACT:
An over-the-wire atherectomy cutter includes a hollow cylindrical sleeve which is coaxially attached at its proximal end to a hollow rotatable catheter. The periphery of the distal end of the sleeve is sharpened.
A hollow, substantially cylindrical body is coaxially positioned within the sleeve in an interference fit. A frustum-shaped portion is formed on the distal end of the body and tapers inwardly toward a hollow cylindrical distal tip. The frustum-shaped portion has two openings which extend the axial length of the frustum-shaped portion, to create a pair of straight blades that connect the body to the tip. The straight blades are contiguous to the sharpened distal end of the sleeve to establish a pair of diametrically opposed arcuate cutting edges that are positioned on the distal end of sleeve.
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Interventional Technologies
Lewis William W.
Rosenbaum C. Fred
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