GUIDE WIRE TYPE INTRAPSYCHIC ELECTROCARDIOGRAM ELECTRODE HAVING PRESSURE SENSOR

摘要

PROBLEM TO BE SOLVED: To easily measure an intrapsychic electrocardiogram by constituting an intrapsychic electrocardiogram electrode of a sensor part where a blood pressure measuring pressure sensor is installed in an opening part in close vicinity to a metallic X-ray untransmissive tip part, making conductive fine wiring exist in a wire lumen, and covering a wire outside surface with resin. SOLUTION: A guide wire type intrapsychic electrocardiogram electrode to insert/guide a catheter into/to a heart, is constituted of a tip part 1, a sensor part 2 and an extension part 3, and an X-ray untransmissive part composed of a spiral coil 4 round/on which a platinum fine wire is wound/installed, is arranged in the tip part 1. The sensor part 2 has a stainless steel pallium tube 8 having a lumen, and a semiconductor pressure sensor is fixed by an epoxy resin 6 by exposing a pressure receiving surface to an opening part by using a silicon chip 5 arranged in the lumen facing to the opening part arranged in its pallium tube 8 as a pedestal. In order to make the X-ray untransmissive part of the tip part 1 as a unipolar electrode, an outside surface of a guide wire except for this tip part 1 is covered with resin 10.