Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue
Patent
1987-05-13
1989-01-03
Thaler, Michael H.
Surgery
Means for introducing or removing material from body for...
With means for cutting, scarifying, or vibrating tissue
128303R, A61B 1700
Patent
active
047954388
ABSTRACT:
A flexible, small diameter catheter for effecting the formation of a restriction in a vessel, duct or lumen in a living being and methods of using the catheter. The catheter contains a working head arranged for high speed movement with respect to a longitudinal axis of the catheter. The high speed movement of the working head causes the tissue of the vessel, duct or lumen to produce a restriction. In one aspect of the invention the restriction formation is expedited by the expulsion of a liquid and/or particles into the tissue wall adjacent the working head. In another aspect of the invention the working head includes abrasive means thereon for abrading or otherwise sclerosing the tissue of the vessel, duct or lumen adjacent the working head. A sclerosing liquid or a tissue swelling liquid or adhesive agent can also be introduced by the catheter into contact with the tissue of the vessel, duct or lumen to expedite the restriction forming process.
REFERENCES:
patent: 4109654 (1978-06-01), Bolduc et al.
patent: 4136695 (1979-01-01), Dafoe
patent: 4245623 (1981-01-01), Erb
Kensey Kenneth
Nash John
Intravascular Surgical Instruments, Inc.
Thaler Michael H.
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