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. 23, 2002
Filed:
May. 13, 1999
Otfried Roeher, Dresden, DE;
Steffen Korth, Erfurt, DE;
Friedrich A. Mueller, Loehnberg, DE;
Dieter Rath, Melsungen, DE;
B.Braun Melsungen AG, Melsungen, DE;
Abstract
The ultrafiltration rate of a blood purification apparatus is controlled by a fuzzy control device in dependence on the patient's ( ) blood pressure measured by a blood pressure monitor ( ). For this purpose the blood pressure (P), a short-term blood pressure trend value (TRK) and a long-term blood pressure trend value (TRL) are fed as input variables for the fuzzy controller to the control device ( ). The ultrafiltration rate (UFR) is determined by the volumetric ultrafiltration pump ( ). According to the patient's ( ) blood pressure situation a prestored profile of the ultrafiltration rate is modified. This avoids the necessity of an additional infusion to prevent too strong a blood pressure decrease.