MURAGAKI Yoshihiro    Department   School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine    Position   Visiting Professor
Article types	Original article
Language	Japanese
Peer review	Peer reviewed
Title	Development and evaluation of water-cooled bipolar forceps
Domestic / Foregin	Domestic
Volume, Issue, Page	82(2),pp.57-61
Author and coauthor	†Shiun T†,Suzuki T,Muragaki Y,Iseki H
Publication date	2012/04
Summary	While recent improvements have been made to bipolar forceps used in surgical proce-dures, especially those used in neurosurgery, problems concerning reduced coagulation performance due to the adhesion of coagulated tissue to the tips of the forceps persist. Various measures, including surface modification and tip cooling, have been attempted, but remain unsatisfactory. In this study, we applied a cooling method that is commonly used for the puncture needle of radio frequency ablation devices to bipolar forceps. Using the newly developed bipolar forceps with circulating coolant inside the thin blades, coagulation performance and tissue adhesion were evaluated in both ex vivo and in vivo environments. Adhesion of tissue to the tips of the forceps was drastically reduced by the cooling. Coagulation time increased, however, because the cooled tips did not induce thermal coagulation; only Joule heat from the electric current of the forceps was re-sponsible for coagulation. Additional radio frequency power can compensate for the low temperature at the tips of the forceps. In conclusion, our newly developed water-cooled bipolar forceps effectively reduce tissue adhesion.
Document No.	2012252971(医中誌)
NAID	110009004318