Method and apparatus for removing deposits from a vessel

Details Method and apparatus for removing deposits from a vessel Method and apparatus for removing deposits from a vessel

1990-08-14

1992-01-07

Pellegrino, Stephen C.

Surgery

Instruments

Blood vessel, duct or teat cutter, scrapper or abrader

604 22, A61B 1732

Patent

active

050787225

ABSTRACT:
A catheter for insertion into a subject and for use in removing deposits from inner wall linings of a vessel, typically a blood vessel. The catheter includes a cutting member located at its distal end which is used to separate deposits from the inner wall linings of the vessel that have been forced into a cavity at the catheter's distal end. As deposits are separated from the vessel, the cavity can become filled with such deposits and a pumping device can be inserted into the catheter and rotated with respect to the catheter to withdraw the deposits. Further treatment can cause the pumping member to also become filled with the deposits. In the event this occurs, the pumping device is retracted from the catheter, cleaned and reinserted for further treatment.

REFERENCES:
patent: 4669469 (1987-06-01), Gifford, III et al.
patent: 4857046 (1989-08-01), Stevens et al.
patent: 4917085 (1990-04-01), Smith
patent: 4923462 (1990-05-01), Stevens
patent: 4979939 (1990-12-01), Shiber

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