Occlusion of vas deferens in uitro and in vivo with Nd2+ YAG laser of 100mW-1000mW was investigated. An optical fiber core in diameter of 200pm was inserted into the lumen of the uas uia a canula in & rabbits and ...Occlusion of vas deferens in uitro and in vivo with Nd2+ YAG laser of 100mW-1000mW was investigated. An optical fiber core in diameter of 200pm was inserted into the lumen of the uas uia a canula in & rabbits and 16 uasa deferens were irradiated in uiuo.The threshold lesion(denned as a half thickness of the uas wall being penetrated)at dijferent power and exposure duration was investigated in uitro. Temperature on the aduentitia was also determined.The uasa delerens were totally occluded in those irradiated with power of 800mW for 24 sec or with power of 1000mW for 16 sec 3 and 4 weeks after irradiation.The authors considered that it would be possible to insert percutaneously a fiber and coagulate vas deferens with laser for sterilization in the near future. However,more investigations are needed before it could be employed in the clinic.展开更多
文摘Occlusion of vas deferens in uitro and in vivo with Nd2+ YAG laser of 100mW-1000mW was investigated. An optical fiber core in diameter of 200pm was inserted into the lumen of the uas uia a canula in & rabbits and 16 uasa deferens were irradiated in uiuo.The threshold lesion(denned as a half thickness of the uas wall being penetrated)at dijferent power and exposure duration was investigated in uitro. Temperature on the aduentitia was also determined.The uasa delerens were totally occluded in those irradiated with power of 800mW for 24 sec or with power of 1000mW for 16 sec 3 and 4 weeks after irradiation.The authors considered that it would be possible to insert percutaneously a fiber and coagulate vas deferens with laser for sterilization in the near future. However,more investigations are needed before it could be employed in the clinic.
