High-frequency heating power device for catheter
First Claim
1. A high-frequency heating power device comprising:
- a conductive leading member inserted into a catheter adapted to be inserted through a patient'"'"'s body;
a grounding plate adapted to be set in contact with the patient'"'"'s body;
a high-frequency heating power member for applying a high-frequency heating voltage to said conductive leading member through a lead wire to heat a tip portion of said conductive leading member, said high-frequency heating power member being electrically arranged between said conductive leading member and the grounding plate;
an impedance measuring for applying a high-frequency measuring voltage lower than said high-frequency heating voltage between said conductive leading member and said grounding plate, to measure an impedance of a circuit which is made up of said lead wire, said conductive leading member, said patient'"'"'s body, and said grounding plate; and
an implanted device connected through a joint member to the tip portion of said conductive leading member, said joint member capable of being fused by application of said high-frequency heating voltage.
3 Assignments
0 Petitions
Accused Products
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.
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Citations
13 Claims
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1. A high-frequency heating power device comprising:
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a conductive leading member inserted into a catheter adapted to be inserted through a patient'"'"'s body; a grounding plate adapted to be set in contact with the patient'"'"'s body; a high-frequency heating power member for applying a high-frequency heating voltage to said conductive leading member through a lead wire to heat a tip portion of said conductive leading member, said high-frequency heating power member being electrically arranged between said conductive leading member and the grounding plate; an impedance measuring for applying a high-frequency measuring voltage lower than said high-frequency heating voltage between said conductive leading member and said grounding plate, to measure an impedance of a circuit which is made up of said lead wire, said conductive leading member, said patient'"'"'s body, and said grounding plate; and an implanted device connected through a joint member to the tip portion of said conductive leading member, said joint member capable of being fused by application of said high-frequency heating voltage. - View Dependent Claims (2, 3, 4, 5)
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6. A high-frequency heating power device comprising:
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a conductive leading member inserted into a catheter adapted to be inserted through a patient'"'"'s body; a grounding plate adapted to be set in contact with the patient'"'"'s body; a high-frequency heating power member for applying a high-frequency heating voltage to said conductive leading member through a lead wire to heat a tip portion of said conductive leading member, said high-frequency heating power member being electrically arranged between said conductive leading member and the grounding plate; an impedance measuring member for applying a high-frequency measuring voltage lower than said high-frequency heating voltage between said conductive leading member and said grounding plate, to measure an impedance of a circuit which is made up of said lead wire, said conductive leading member, said patient'"'"'s body, and said grounding plate; and inhibiting means for inhibiting the application of said high-frequency heating voltage which is used for fusing a joint member, when an impedance value measured by said impedance measuring member is out of a predetermined allowable range. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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Specification