Nova Patents
EP1514562A3

Hemofiltration system

Abstract

A multipurpose hemofiltration system (10) and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system (10) continuously monitors the flow rates of drained fluid, blood, and infusate. When necessary, the pumping rates of the infusate, drained fluid and blood are adjusted to remove a preselected amount of fluid from the blood in a preselected time period. A supervisory controller (160) can monitor patient parameters, such as heart rate (120) and blood pressure (130), and adjust the pumping rates accordingly. The supervisory controller (160) uses fuzzy logic to make expert decisions, based upon a set of supervisory rules, to control each pumping rate to achieve a desired flow rate and to respond to fault conditions. An adaptive controller (162) corrects temporal variations in the flow rate based upon an adaptive law and a control law.

Term

Term ended

Projected expiry passed 28 April 2020, 6.4 years ago.

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Every citation, both waysCites: the store holds 5 of 6

Citations
DocumentRelationOfficeCategoryCited duringRelevant claims
EP0300201A1CitesEuropean Patent Office (EPO)ADSearch report1,6,7
EP0611228A2CitesEuropean Patent Office (EPO)ASearch report1,6,7
US5503624ACitesUnited States of AmericaASearch report1,6,7
WO9306875A1CitesWorld Intellectual Property Organization (WIPO)ADSearch report1,6,7
WO9850091A1CitesWorld Intellectual Property Organization (WIPO)ASearch report1,6,7