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:
Sep. 06, 1983
Filed:
Apr. 17, 1981
Applicant:
Inventors:
Gerhard Hofmann, Freiburg, DE;
Hermann Taaks, Stegen, DE;
Assignee:
Hellige, GmbH, Freiburg im Breisgau, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ; A61B / ;
U.S. Cl.
CPC ...
340573 ; 128723 ; 324 / ; 328148 ; 340657 ;
Abstract
A respiration monitor for use in an apnea monitor is disclosed in which a threshold value signal is automatically generated proportional to the average value of the monitored impedance of the subject during a base period selected by the operator. A comparator circuit operates to indicate respiration when the ratio between the threshold value signal and the impedance signal reaches a predetermined proportionality factor.