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.

Date of Patent:
Mar. 19, 2024

Filed:

Dec. 17, 2019
Applicant:

Nikkiso Company Limited, Tokyo, JP;

Inventors:

Fumihiko Ishizaki, Shizuoka, JP;

Sumiaki Matsuo, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 1/16 (2006.01); A61M 1/30 (2006.01); A61M 1/34 (2006.01); B01D 61/32 (2006.01);
U.S. Cl.
CPC ...
A61M 1/3448 (2014.02); A61M 1/1645 (2014.02); A61M 1/306 (2014.02); B01D 61/32 (2013.01); A61M 2202/0021 (2013.01);
Abstract

A blood purification apparatus is provided in which waste liquid is prevented from flowing through an ultrafiltration pump during ultrafiltration so that the performance and accuracy of ultrafiltration can be maintained over a long period. The blood purification apparatus includes an ultrafiltration line one end of which is connected to a dialysate introduction line at a position on a downstream side with respect to a duplex pump. The ultrafiltration line is provided with the ultrafiltration pump. The ultrafiltration pump is capable of performing ultrafiltration by drawing dialysate in the dialysate introduction line through the ultrafiltration line such that the volume of the dialysate to be introduced into a dialyzer becomes smaller than the volume of waste liquid to be drained from the dialyzer.


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