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. 25, 2018
Filed:
Jan. 29, 2015
Applicant:
Nikkiso Co., Ltd., Tokyo, JP;
Inventor:
Yoshimichi Masuda, Higashimurayama, JP;
Assignee:
NIKKISO CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 3/02 (2006.01); A61M 1/00 (2006.01);
U.S. Cl.
CPC ...
A61M 3/0229 (2013.01); A61M 1/0058 (2013.01); A61M 3/0258 (2013.01); A61M 3/0287 (2013.01); A61M 2205/18 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/3337 (2013.01); A61M 2205/3379 (2013.01); A61M 2205/36 (2013.01); A61M 2205/3653 (2013.01); A61M 2205/705 (2013.01); A61M 2205/75 (2013.01); A61M 2205/7545 (2013.01); A61M 2205/7554 (2013.01); A61M 2205/7563 (2013.01); A61M 2210/1021 (2013.01);
Abstract
This system for in-body-cavity liquid perfusion of a circulating type which circulates a liquid such as an isotonic solution perfused within the body cavity, suppresses an excessive increase in internal pressure that would lead to breakage of a hollow fiber membrane module. A drain valve is connected to a drain port of the hollow fiber membrane module. A pressure sensor measures the internal pressure of the hollow fiber membrane module. A control unit opens the drain valve on the basis of the internal pressure of the hollow fiber membrane module measured by the pressure sensor, draining foreign matter from the hollow fiber membrane.