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:
Jul. 28, 1992
Filed:
Mar. 07, 1991
Applicant:
Inventor:
Colin P Spears, Glendale, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128754 ; 606170 ;
Abstract
A biopsy instrument is provided which has a retractable cutting wire or filament looped external to the innermost surface of the distal end of the tissue cutting cylinder. Forceful retraction of the cutting wire will cause displacement and closure of a loop of wire over the distal margin of the cored tissue biopsy, thus freeing the biopsy specimen in its entirety from its original locus and allowing removal of the entire cored biopsy from the body substantially without stretching the specimen along its length.