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:
May. 02, 1989
Filed:
Jan. 30, 1987
Toru Sato, Yonago, JP;
Toshihisa Hasegawa, Yonago, JP;
Tottori University, Tottori, JP;
Abstract
A cuff pressure regulator for controlling the pressure in an annular, collapsible and inflatable bag-like cuff of a cuffed endotracheal tube inserted in a patient's trachea, while allowing superposition of the patient's ventilatory pressure variation on the cuff pressure. The regulator has a second chamber communicating with the inside of the cuff and a third chamber communicating with the inside of the tube inserted in the patient's trachea. A diaphragm portion of the partition between the second chamber and the third chamber is connected to a cuff pressure setter, so that the pressure in the second chamber is set at a desired level by the setter and controlled in response to the pressure variation in the third chamber.