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. 31, 1990
Filed:
Aug. 29, 1988
Gerald D Buckberg, Los Angeles, CA (US);
James V Maloney, Jr, Los Angeles, CA (US);
Kenneth A Jones, Lake Elsinore, CA (US);
Weldon D West, Mission Viejo, CA (US);
Shiley, Inc., Irvine, CA (US);
Abstract
An arterial cannula is formed with an angled shoulder that limits the degree of insertion of cannula tip into an artery. The shoulder also forms a seal with the artery. Suture flaps are formed on the cannula to attach the cannula to the patient's skin. A stylet for the cannula has a stop on its exterior that prevents blood flow between the cannula and the stylet, and permits clamping of the cannula with the stylet partially withdrawn. A removable anti-backflow ring seals the cannula and provides a convenient initial movement limit for the stylet stop.