Codman & Shurtleff, Inc., Raynham, Massachusetts, USA.
Neurosurgery. 2009 Dec;65(6):1182-7; discussion 1187. doi: 10.1227/01.NEU.0000356985.27936.93.
To determine whether a novel bipolar forceps device that uses heat-pipe technology to manage tissue temperature would result in less tissue injury compared with a conventional antistick forceps design.
In ex vivo and in vivo experiments, lesions were compared at generator powers of 35 and 50 Malis units and at 3- and 10-second activation times. For the ex vivo studies, lesions were produced in specimens of fresh calf liver. Tissue temperatures were measured by using thermocouples placed in the tissue and also estimated by obtaining thermal photography. Rats were used for the in vivo studies, in which lesions were produced on the surface of the exposed cerebral hemispheres and assessed by histological examination. The extent of tissue injury was determined for both the ex vivo and in vivo studies.
Thermographic and thermometric studies revealed significant tissue temperature reductions at the tips of heat-pipe forceps compared with conventional antistick forceps. In both the ex vivo and in vivo studies, there was less tissue injury produced by the heat-pipe forceps, and this difference was most pronounced with longer activation times.
Bipolar forceps containing heat pipes more effectively limits excessive thermal spread, thereby potentially reducing the risk of unintended injury to collateral or peripheral tissue.
确定一种新型的双极止血镊，该止血镊采用热管技术来管理组织温度，与传统的防粘连设计相比，是否会导致更少的组织损伤。
在离体和体内实验中，分别在发生器功率为 35 和 50 马力单位以及激活时间为 3 和 10 秒的情况下比较损伤。对于离体研究，在新鲜牛肝标本上产生损伤。通过在组织中放置热电偶测量组织温度，并通过获得热成像来估计组织温度。使用大鼠进行体内研究，在暴露的大脑半球表面产生损伤，并通过组织学检查进行评估。对离体和体内研究都确定了组织损伤的程度。
热成像和测温研究显示，与传统的防粘连止血镊相比，热管止血镊的尖端组织温度明显降低。在离体和体内研究中，热管止血镊产生的组织损伤较小，并且随着激活时间的延长，这种差异更为明显。
含有热管的双极止血镊更有效地限制了过度的热扩散，从而可能降低对相邻或周围组织意外损伤的风险。
