公开(公告)号：US08298220B2

公开(公告)日：2012-10-30

申请号：US11940665

申请日：2007-11-15

申请人： Douglas A. Devens, Jr. ,  David W. Vancelette ,  Michael W. V. Perkins

发明人： Douglas A. Devens, Jr. ,  David W. Vancelette ,  Michael W. V. Perkins

IPC分类号： A61B18/18

CPC分类号： A61B18/02

摘要： The present disclosure is directed to a cryoprobe capable of improving the cooling power of a cryosurgical system. A representative cryoprobe can comprise an inner cooling chamber and a radial chamber, positioned between the inner cooling chamber and an exterior wall of the cryoprobe. Preferably, the radial chamber is formed to have a low thermal conductivity so as to significantly reduce the transfer of heat between the body and the refrigerant in the inner chamber during a cryosurgical procedure. The radial chamber can be fabricated such that a vacuum can be applied to the radial chamber to further reduce heat transfer between the body and the inner cooling chamber. The radial chamber extends partially along the length of the cryoprobe such that inner cooling chamber is in direct thermal contact with the exterior wall at a cryoprobe tip.

摘要翻译： 本公开涉及能够改善冷冻手术系统的冷却功率的冷冻探针。 代表性的冷冻探针可以包括位于内部冷却室和冷冻探针的外壁之间的内部冷却室和径向室。 优选地，径向室形成为具有低导热性，以便在冷冻手术过程期间显着地减少体内和内腔中的制冷剂之间的热传递。 可以制造径向室，使得可以向径向室施加真空以进一步减少主体和内部冷却室之间的热传递。 径向室沿着冷冻探针的长度部分延伸，使得内部冷却室在冷冻探针尖处与外壁直接热接触。