High-frequency heating power device for catheter
US5800426A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | May 16, 1996 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | May 16, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1273
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.