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:
Jan. 02, 1990
Filed:
Mar. 24, 1988
Jay R Sorensen, Aloha, OR (US);
SpaceLabs, Inc., Bothell, WA (US);
Abstract
A blood pressure cuff having an internal acoustic pickup cup. In one embodiment, the cup communicates with the interior of the blood pressure cuff bladder through an aperture that is sufficiently large to allow pressure equalization between the interior of the bladder and the cup and sufficiently small to prevent Karotkoff sounds from being coupled from the cup to the interior of the bladder. A single pneumatic tube extends from the cup and through the wall of the bladder to a first enclosure that is coupled to a second enclosure through a conduit. The first enclosure contains a microphone for converting the acoustic signals picked up by the cup into a corresponding electrical signal. The second enclosure contains a pressure transducer for providing an electrical signal indicative of the pressure in the bladder. In a second embodiment, the cup and bladder are isolated from each other and separate tubes extend from the bladder and the cup to separate enclosures. The enclosure communicating through one of the conduits with the cup contains a microphone, while the enclosure communicating through the other tube with the bladder contains a pressure transducer.