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. 07, 1993
Filed:
Mar. 27, 1992
Takashi Isoyama, Tokyo, JP;
Sadahiko Mushika, Aichi, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
The invention is directed to a leak detector for an intra-aorta balloon pump which has a pressure source for pressurizing a primary fluid, a balloon filled with a secondary fluid and inflated thereby, and an isolating device which includes a diaphragm for defining a primary chamber and secondary chamber within the device. The primary chamber is communicated with the pressure source and supplied with the primary fluid, and the secondary chamber is communicated with the balloon and filled with the secondary fluid. The leak detector includes a sensor for detecting a relative position of the diaphragm against at least an inner surface of one of the primary chamber and secondary chamber, and determines a leak of the secondary fluid in response to the relative position of the diaphragm detected by the sensor.