04456013 is referenced by 42 patents and cites 7 patents.

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.

Title
Catheter
Application Number
6/299740
Publication Number
4456013
Application Date
September 8, 1981
Publication Date
June 26, 1984
Inventor
Paolo Dario
Leghorn
IT
Pierre M Galletti
Providence
RI, US
Danilo E De Rossi
Pisa
IT
Assignee
Brown University Research Foundation
RI, US
IPC
A61B 5/02
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