Pressure transducer catheter with piezoelectric polymeric...

Details Pressure transducer catheter with piezoelectric polymeric... Pressure transducer catheter with piezoelectric polymeric...

A - Human Necessities

61

B

326/16

A61B 5/02 (2006.01) A61B 5/0215 (2006.01) A61B 5/03 (2006.01) A61M 25/00 (2006.01) G01L 9/00 (2006.01)

Patent

CA 1194135

Abstract of the Disclosure A catheter is disclosed 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 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. Electrical signals produced by the flexure are transmitted from the electrodes to external circuitry.

410848

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