The clinical application and research on vas deferens laser coagulation sterilization / 中华外科杂志

<p><b>OBJECTIVE</b>To study the effect of Ar(+) laser on human vas deferens and to compare the effects of using different radiation levels with varying thickness of tissue and varying levels of injury.</p><p><b>METHODS</b>After initial tests on animals, four human scrotums were opened and treated directly with Ar(+) laser radiation. Then 58 human individual scrotums were treated with radiation by the method of trans-skin puncture. The rate of sperm reduction and elimination was tested.</p><p><b>RESULTS</b>In 60 cases, the sperms were found to be eliminated completely after six months of radiation treatment. In 2 cases the sperms were found not to be eliminated completely due to the insufficient radiation.</p><p><b>CONCLUSION</b>Ar(+) laser is one of the best forms of radiation for coagulation of vas deferens. It can be used to coagulate vas deferens without any complications or sequelae.</p>

Reform and application of the vas deferens puncture tube needle via skin / 中华男科学杂志

The article gives a detailed introduction of the process of marking flat tube needle for vas deferens puncture and a brief explanation of its application. This kind of tube needle can be easily made of readily available material, convenient to be cleaned and sterilized, with high success rate of puncturing and good effect. Other tube needles can be made by imitating it.