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. 15, 2020
Filed:
Oct. 21, 2015
Murata Manufacturing Co., Ltd., Kyoto, JP;
Yuzo Higashiyama, Kyoto, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
A cuff pressure controller device () is connected to a foregoing cuff () via an air supply tube (). The cuff pressure controller device () includes a controller unit (), a cuff pressure detector unit (), a driver circuit (), a piezoelectric pump (), a check valve (), and a release valve (). The cuff pressure detector unit () detects the cuff pressure of the cuff (). The driver circuit () drives the piezoelectric pump () at a drive frequency of 20 kHz or higher. The controller unit () controls the cuff pressure detector unit (), the driver circuit (), and the release valve () in such a way that the cuff pressure stays within a predetermined range based on detection results of the cuff pressure detector unit () and the like.