| Project/Area Number |
06671174
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
General surgery
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| Research Institution | HOKKAIDO UNIVERSITY |
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Principal Investigator |
SATO Naoki Hokkaido Univ., Div. of Surg. Cen., Asso. Pro, 医学部附属病院, 助教授 (70205946)
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| Co-Investigator(Kenkyū-buntansha) |
UCHINO Junichi Hokkaido Univ., First Dep. of Surg., Pro, 医学部, 教授 (40000989)
WADA Tatsuhiko Hokkaido Univ., College of Med. Tech., Pro, 医療技術短期大学部, 教授 (90002112)
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| Project Period (FY) |
1994 – 1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1995: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1994: ¥1,000,000 (Direct Cost: ¥1,000,000)
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| Keywords | Burns caused by electric knives / Spray coagulation / High frequency leakage / スプレー疑固 |
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| Research Abstract |
Electric charges from an electric knife (350W maximum output for pure incision ; 130W maximum output for pinpoint coagulation ; 75W maximum output for spray coagulation) were experimentally loaded on various kinds of surgical gloves to identify the cause of burns under surgical gloves and unpleasant electric shocks, which suddenly occur during operation.
The voltage for coagulation increased only to 3,000V in the pinpoint mode, but easily reached about 6,000V int the spray mode. Rubber glove insulators were easily destroyed at about 50W (about 5,000V) in the spray mode.
The present study revealed that insulator destuction easily occurred in surgical gloves during the ordinary use of an electric knife for spray coagulation. Thus such destruction was thought to be the primary factor for burns occurring under surgical gloves.
It is necessary to prevent burns under gloves that epecial care is taken when the spray mode is applied, high frequency leakage should be prevented through insulating coating of forceps and tweezers, and every electric knife is used at frequency and electric power as low as possible.
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