The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 03, 1989
Filed:
May. 13, 1987
Kenneth Kensey, Hinsdale, IL (US);
John Nash, Downingtown, PA (US);
Intravascular Surgical Instruments, Inc., Frazer, PA (US);
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.