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. 19, 2001
Filed:
Nov. 12, 1997
Applicant:
Inventors:
Harold D. Waitz, Berkeley, CA (US);
Hal Sternberg, Berkeley, CA (US);
Paul E. Segall, Berkeley, CA (US);
Bruce Cohen, Albany, CA (US);
Assignee:
BioTime, Inc., Berkeley, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H 6/908 ;
U.S. Cl.
CPC ...
B65H 6/908 ;
Abstract
A microcannula suitable for cannulation of very small blood vessels having a sharp pointed trochar tightly but removable placed in the lumen of the microcannula. The trochar is held in place by contact friction from an area of reduced inside diameter distal to the tip end, formed by welding the end distal of the microcannula to a tube having a slightly larger diameter. A process for making a microcannula is also provided.