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:
Dec. 17, 2013
Filed:
Jan. 22, 2009
Shota Nakao, Osaka, JP;
Tomokazu Niitsuma, Hiroshima, JP;
Hideki Izumida, Hiroshima, JP;
JMS Co., Ltd., Hiroshima, JP;
Abstract
A medical heat exchanger includes a thin tube bundlein which a plurality of heat transfer thin tubesfor letting heat medium liquid flow therethrough are arranged and stacked, seal memberstosealing the thin tube bundle while allowing both ends of the heat transfer thin tubes to be exposed and forming a blood channelwhich allows blood to flow therethrough so that the blood comes into contact with each outer surface of the heat transfer thin tubes; a housingcontaining the seal members and the thin tube bundle and provided with an inlet portand an outlet portof the blood positioned respectively at both ends of the blood channel; and a pair of heat transfer thin tube headersforming flow chambersthat respectively surround both ends of the thin tube bundle and having an inlet portand an outlet portof the heat medium liquid. The thin tube bundle is divided into a plurality of thin tube bundle unitsto, and the heat transfer thin tube headers are configured so that the heat medium liquid passes through the plurality of the thin tube bundle units successively. Heat exchange efficiency is enhanced while the flow speed of the heat medium liquid flowing through the heat transfer thin tubes is increased to suppress the increase in volume of the blood channel.