Electrosurgical device for treating body tissue with high-frequency power
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United States of America Patent
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Feb 15, 2005
Grant Date -
Nov 7, 2002
app pub date -
Apr 29, 2002
filing date -
May 7, 2001
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Abstract
An electrosurgical device for treating a body tissue with a high-frequency power includes an electrode for exposing the body tissue to the high-frequency power for treatment, and a high-frequency cautery power supply having a control circuit that outputs a high-frequency power generator for outputting the high-frequency power to the electrode. The control circuit of the high-frequency cautery power supply includes a timer for measuring output time and suspension time of the high-frequency power applied to the body tissue, a counting unit for counting the number of output of the high-frequency power, an impedance detector for detecting an impedance of the body tissue in the coagulated state thereof when the body tissue is treated using the high-frequency power applied from the electrode, an impedance comparator for comparing the impedance of the coagulated tissue detected by the impedance detector with an impedance predetermined for the purpose of the treatment of a region to be treated, and a high-frequency power switch for switching the output of the high-frequency power generator.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- OLYMPUS CORPORATION
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Harano, Kenji | Hachioji, JP | 21 | 2894 |
Hatta, Shinji | Hachioji, JP | 35 | 9375 |
Hijii, Kazuya | Hachioji, JP | 27 | 4412 |
Ohyama, Masahide | Hino, JP | 13 | 1530 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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