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.

Date of Patent:
May. 25, 1999

Filed:

Apr. 04, 1997
Applicant:
Inventors:

Norio Ishikawa, Tokyo, JP;

Kohei Ono, Tokyo, JP;

Katsumi Nakaichi, Tokyo, JP;

Shin Suda, Tokyo, JP;

Hidehiro Hosaka, Tokyo, JP;

Ryoichi Ochiai, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ; A61B / ;
U.S. Cl.
CPC ...
128898 ; 12820024 ; 600300 ; 600306 ; 600547 ;
Abstract

The apparatus has: electrodes (E.sub.1 to E.sub.6) which are to be attached to a predetermined region of a living body; a skin potential measuring unit (1) which detects the skin potential from the electrodes; a judging unit (3) which detects and stores the skin potential before administration of an anesthetic agent, which detects and stores that after administration of the anesthetic agent, which sets a threshold to be an arbitrary level, on the basis of a change from the stored skin potential before administration of the anesthetic agent to the stored skin potential after administration of the anesthetic agent, and which compares the time-varying skin potential with the threshold, thereby judging the depth of anesthesia; and an alarm unit (6) which raises an alarm in accordance with instructions from the judging unit.


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