04274423 is referenced by 141 patents and cites 14 patents.

A catheter tip pressure transducer for detecting the pressure in various portions of a living body accurately and safely comprises a pressure sensor disposed within the end portion of a catheter. The pressure sensor comprises a pressure sensitive diaphragm whereon strain gauges are formed by a diffusion method. The pressure sensor is mounted on an insulated supporting member without being secured firmly thereto. A protecting member made of silicone rubber fills the hollow portion of the catheter so as to isolate and protect the pressure sensor and the ambient body tissue.

Pressure is accurately measured by the pressure sensor without being influenced by the thermal stresses which occur in the supporting member. Furthermore, electrical isolation and mechanical safety are obtained.

Title
Catheter tip pressure transducer
Application Number
5/967815
Publication Number
4274423
Application Date
December 8, 1978
Publication Date
June 23, 1981
Inventor
Hazime Inagaki
Nagoya
JP
Isemi Igarashi
Aichi
JP
Masakazu Mizuno
Nagoya
JP
Agent
Blum Kaplan Friedman Silberman & Beran
Assignee
Kabushiki Kaisha Toyota Chuo Kenkyusho
JP
IPC
A61B 5/02
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