High-frequency heating power device for catheter

Details High-frequency heating power device for catheter High-frequency heating power device for catheter

1996-05-16

1998-09-01

Bahr, Jennifer

Surgery

Instruments

Electrical application

606 41, 606 35, 606108, A61B 1738

Patent

active

058004262

ABSTRACT:
A high frequency heating power device for an implanted device comprises a switch circuit, an input/output circuit, a high-frequency signal generating circuit, and a check circuit. When a high frequency output circuit applies a high frequency measuring voltage between a guide wire and the body ground board, a voltage is detected which corresponds to the impedance of a circuit which is made up of lead wires, the guide wire, the patient's body, and the body grounding board. It is determined by a discriminating circuit whether or not the voltage thus detected is in a predetermined allowable voltage range. The operator is informed of the discrimination by means of a display circuit and a buzzer circuit, so that he can determine the position of the end of the guide wire with respect to the end of the catheter with ease.

REFERENCES:
patent: 5078714 (1992-01-01), Katims
patent: 5354295 (1994-10-01), Guglielmi et al.
patent: 5569245 (1996-10-01), Guglielmi et al.
patent: 5599346 (1997-02-01), Edwards et al.
patent: 5624449 (1997-04-01), Phan et al.
patent: 5643254 (1997-07-01), Scheldrup et al.

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