OBJECTIVE: The goal of this work was to determine whether bipolar forceps using a novel heat pipe thermal regulation technology result in decreased thermal damage of untargeted collateral tissue compared with traditional bipolar forceps.
METHODS: Fresh ex vivo bovine livers underwent controlled coagulation with forceps with (n = 36) or without (n = 36) heat pipe technology. Liver specimens were assessed regarding the extent of thermal injury (heat pipe, n = 20; non-heat pipe, n = 20). During coagulation, tissue temperatures were measured via thermocouple array thermometry and imaged via infrared camera thermography (heat pipe, n = 16; non-heat pipe, n = 16).
RESULTS: Forceps using heat pipe technology were associated with less thermal spread and demonstrated mean tissue temperatures 25% lower than observed with non-heat pipe forceps. The mean width, area, and depth of thermal injury were significantly reduced with heat pipe vs traditional forceps.
CONCLUSION: In an ex vivo study of bovine liver bipolar coagulation, forceps that incorporated heat pipe technology limited thermal spread and reduced the extent of unintended injury to untargeted collateral tissue.
Codman & Shurtleff, Inc, Raynham, Massachusetts (Elliott-Lewis)
Department of Neurosurgery, Center for Spine Health, Cleveland Clinic, Cleveland, Ohio (Benzel)
Reprint requests: Edward C. Benzel, MD, Chairman, Department of Neurosurgery, Director, Center for Spine Health, Cleveland Clinic, 9500 Euclid Ave S-80, Cleveland, OH 44195. E-mail:firstname.lastname@example.org
Received, March 4, 2009.
Accepted, January 15, 2010.