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. 14, 2004
Filed:
Mar. 16, 2001
Rolf Heitmeier, Baunatal, DE;
Gerhard Niessner, Melsungen, DE;
B. Braun Melsungen AG, Melsungen, DE;
Abstract
For automatic supply of an active substance to a patient's body ( ) the supply rate (R) of an infusion pump ( ) is evaluated. The supply rate is processed in a patient model ( ) which receives the corresponding active substance data from a drug data bank ( ). The patient model ( ) calculates the concentration (CN ) in the patient's body from the former values of the active substance supply. Said actual concentration value is fed to a concentration controller ( ) which also receives a desired concentration value (CN ). The infusion pump ( ) is controlled as a function of the difference obtained. The desired concentration value can be manually set on an input device ( ) or is supplied by another control portion which generates e. g. a BIS level or an adequate signal from the patient's EEG, the BIS level being a measure of the depth of anaesthesia.