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房事后试验在不育症的检查、避孕药及宫内节育器的避孕效应和机制的研究上已成为一种重要的方法和手段。 Davajan等介绍房事后分级采样试验法是应用一支注射器和导管在吸取颈管粘液的同时,逐渐伸到颈管内各部位进行采集粘液,以示各部位的精子数。作者认为如此采样可能使颈管外口的精子在采集标本时带至颈管内,污染颈管中粘液。已为作者试验证实。最后作者提出了改进房事后分级试验的可靠办法。
Post-mortem tests have become an important method and tool in the investigation of infertility, contraceptives and the contraceptive effects and mechanisms of IUDs. Davajan and other room after the introduction of sexual intercourse sampling test method is the use of a syringe and catheter mucus in the absorption of the same time, gradually extended to all parts of the neck tube to collect mucus to show the various parts of the sperm count. The authors believe such sampling may cause the sperm outside the neck to be taken into the neck during acquisition of the specimen, contaminating the mucus in the neck. Has been tested for the author. Finally, the author put forward a reliable method of grading test after improving the sexual intercourse.