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:
Jun. 09, 1992
Filed:
Jun. 01, 1990
Minoru Niwa, Nagoya, JP;
Colin Electronics Co., Ltd., Aichi, JP;
Abstract
An apparatus for detecting a heartbeat synchronous wave produced from a subject in synchronization with heartbeat of the subject, including a probe which is adapted to be set on a body portion of the subject, a sensor for detecting the heartbeat synchronous wave produced from the subject, the sensor being supported by the probe, a judging device for judging whether or not an electric knife is being used on the subject, and a device for, if the judging device judges that the electric knife is being used, ceasing from detecting the heartbeat synchronous wave, or discarding the heartbeat synchronous wave detected when the electric knife is being used. The judging device may be adapted to detect a high frequency electric current flowing from an electric knife to the probe via the body portion of the subject, and judge whether or not the electric knife is being used on the subject, based on the detected high frequency electric current.