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. 26, 1984
Filed:
Sep. 08, 1981
Brown University Research Foundation, Providence, RI (US);
Abstract
A catheter including a support suitable for insertion into a body organ, a transducer carried by the support, the transducer including a flexible piezoelectric polymeric membrane, and a pair of surface electrodes mounted on the membrane, the support including a rigid portion defining a flexure cavity inside the catheter, the membrane being mounted on the rigid support portion to permit free flexing of the membrane into and out of the cavity, one surface of the membrane communicating with the cavity, the other surface of the membrane being exposed to the exterior of the catheter to receive and flex in response to pressure variations in the organ, and an electrical cable for transmitting from the electrodes to external circuitry electrical signals produced by said flexure.