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:
Nov. 12, 1996
Filed:
May. 08, 1995
Paul H Hess, Plymouth, MN (US);
Minntech Corporation, Minneapolis, MN (US);
Abstract
A soft shell reservoir bag is provided as a storage reservoir for blood in a bypass extracorporeal circuit during open heart surgery. The reservoir bag is constructed to allow for the easy venting of air and to prevent the accidental delivery of air to patient. Blood enters the reservoir through the inlet port, passes through the microscreen and exits through the outlet port to a pump which feeds an oxygenator. The shape of the bag and component disposition give the bag its main advantages. The inlet port is positioned above the outlet port which puts a larger volume above the outlet port which promotes mixing and no vortex. Also the shape above the outlet port gives the bag a low hold-up volume and lower resistance to keep the bag open. The shape also promotes low venous resistance.