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:
Oct. 20, 1998
Filed:
Jan. 11, 1996
Roger J Elgas, Anaheim Hills, CA (US);
Edmund R Corey, Jr, Schwenksville, PA (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
A generally cylindrical membrane-type fiber bundle blood oxygenator concentrically surrounds a generally cylindrical blood heat exchanger including a fiber bundle made of thousands of polymer material micro-conduits. A heat transfer fluid such as water is introduced into the upper end of the heat exchanger and flows downwardly around the outside surfaces of the micro-conduits to an outlet. Upper and lower seals of urethane potting compound separate the heat transfer fluid from the open ends of the micro-conduits through which blood flows. A transition manifold at the upper end of the heat exchanger directs out flowing blood radially outwardly to the upper end of the oxygenator fiber bundle. The blood flows downwardly around the outside surfaces of the fibers of the oxygenator fiber bundle to a blood outlet manifold that collects the oxygenated blood. Upper and lower seals made of urethane potting compound separate the blood flowing around the fibers of the oxygenator fiber bundle from a gas mixture flowing into and out of the open ends of the fibers through upper and lower venous gas headers.