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. 22, 1983
Filed:
Jun. 08, 1981
Applicant:
Inventors:
Ronald B Luther, Newport Beach, CA (US);
Peter F Frey, Buergenstock, CH;
Marshall F Sparks, Santa Ana, CA (US);
Assignees:
Luther Medical Products, Inc., Costa Mesa, CA (US);
Cobra, Inc., Ennetbuergen, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
1282144 ; 128221 ;
Abstract
A cannula needle for a catheter is provided from flat metal sheet blank stock. A groove of controlled depth is formed on the metal sheet which is then rolled to produce a hollow barrel having a slit parallel to the longitudinal axis; the barrel is then cut into individual needles. Gripping wings are then welded to each needle on either side of the slit in a separate operation. In use, when the wings are flexed, the needle will easily split in half along the groove. This enables the cannula to be separated from the catheter.