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:
Jun. 16, 1998
Filed:
Mar. 18, 1994
Anthony A Nobles, Fountain Valley, CA (US);
Cordis Innovasive Systems, Inc., Miami Lakes, FL (US);
Abstract
A device and method for removing ingrown biological tissue from the fluid passageway of a drainage shunt which has been implanted in a patient to relieve a hydrocephalic condition, includes a tubular catheter which is slidably insertable through the passageway of the drainage shunt. A blade extends from the distal end of the catheter and, as the tubular catheter is rotated, the blade cuts away any biological tissue which has ingrown in the passageway. A viewing element is insertable through the tubular catheter to view the blade's progress through the tubular catheter and determine its relationship with any tissue that has ingrown in the passageway.