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:
Jul. 04, 2000
Filed:
Sep. 08, 1997
Takehisa Nakayama, Hyogo, JP;
Hiroshi Tachibana, Shiga, JP;
Eiichi Yoshida, Hyogo, JP;
Yasufumi Hamanishi, Hyogo, JP;
Yoshizumi Takao, Tokyo, JP;
Masataka Narisada, Tokyo, JP;
Kaneka Corporation, Osaka, JP;
Abstract
The invention pertains to a method and apparatus for treating blood. If pressure constraints occur during the execution of blood treatment, the pump flow rates are rapidly decelerated to remove the pressure constraints so that the treating operation will restore the normal state as quickly as possible. After the pressure constraints have been removed, the pump flow rates are restored at a preset acceleration without causing any excessive pressure buildup due to an abruptly increased load. If the pump flow rates immediately after the start of operation of the processor are increased through two stages of acceleration, the target flow rates can be rapidly reached without exerting any abrupt load on the processor and, hence, without causing an excessive pressure buildup.