Distal atherectomy catheter

Details Distal atherectomy catheter Distal atherectomy catheter

1992-02-10

1994-12-06

Rimell, Sam

Surgery

Instruments

Blood vessel, duct or teat cutter, scrapper or abrader

606167, 606168, A61B 1732

Patent

active

053706510

ABSTRACT:
This disclosure sets out a catheter for bodily insertion. The catheter tip supports an elongate hollow housing with a window for occlusive material cutting, a cutter head on the interior rotates, driven by a drive wire in the hollow catheter tube. In addition, the cutter head reciprocates or oscillates to cut on its back edge, the edge trimming material entering through the window. The window and optional slots admit the unwanted material and enable trimming for a vacuum removal through the catheter tube. The window is urged into contact by a pair of flexed wires, the wires moving the housing into operative contact.

REFERENCES:
patent: 4669469 (1987-06-01), Gifford, III et al.
patent: 4678459 (1987-07-01), Onik et al.
patent: 4728319 (1988-03-01), Masch
patent: 4842579 (1989-06-01), Shiber
patent: 4857045 (1989-08-01), Rydell
patent: 4857046 (1989-08-01), Stevens et al.
patent: 4883458 (1989-11-01), Shiber
patent: 4895560 (1990-01-01), Papontonakos
patent: 5047040 (1991-09-01), Simpson et al.
patent: 5087265 (1992-02-01), Summers

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