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. 23, 1996
Filed:
Oct. 05, 1994
Applicant:
Inventors:
Allan Darr, State College, PA (US);
Dan C Ireland, Martinsville, IN (US);
Assignee:
Proact Ltd., State College, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128754 ;
Abstract
A biopsy needle device includes a needle assembly (30) sequentially driven by a spring loaded drive mechanism (44). The needle assembly (30) includes an outer cannula (12) through which a stylet (14) is slidably projected to cut and capture a core of the diagnostic tissue. The cannula (12) and stylet (14) slide on a pair of longitudinal rails (34, 36). A drive carriage (60) follows the path of a pair of cam guide grooves (56, 58), such that the carriage sequentially engages and displaces the cannula (12) and stylet (14), thereby producing the requisite sequential motion of the cannula (12) and stylet (14).