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:
Mar. 26, 2002
Filed:
Jul. 17, 1998
William H. Barnhart, Iowa City, IA (US);
The University of Iowa Research Foundation, Iowa City, IA (US);
Abstract
A surgical instrument for extracting tissue ingrowth from a permeable member of a catheter implanted in a patient is disclosed. The surgical instrument includes a first extracting component and a second extracting component pivotally coupled to the first extracting component. Both extracting components include a wedge having a blunted leading edge sized and shaped to be lodged adjacent an adhesion interface between the permeable member and tissue of a patient when the extracting components are pivoted to a closed position. The extracting components can then be pivoted to an open position to forcibly pull the tissue ingrowth out of the permeable member. Each wedge further has a concave surface sized and shaped such that, after the complete extraction of the tissue ingrowth from the permeable member, the wedges can clench the permeable member when the first extracting component and the second extracting component are pivoted to a closed position.