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:
Nov. 24, 1987
Filed:
Dec. 19, 1986
Applicant:
Inventor:
John R Haaga, Chagrin Falls, OH (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128753 ; 128305 ; 128754 ;
Abstract
A cannula for a biopsy needle is provided with an axially and circumferentially open end forming cutting edges for severing tissue upon insertion or rotation at a lesion side. Concentric cannulas may be used for electively performing end cutting biopsy sampling or side cutting biopsy sampling with a single instrument.