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自体外受精一胚胎移植到受精卵冷冻保存、显微授精等一系列生殖医疗技术应用于临床以来,不孕症的治疗,堪称日新月异。以下技术是近几年欧美一些国家开发并应用的。 一、胚活检(embryo biopsy):迄今应用的胎儿诊断技术,不论是孕中期羊水穿刺法、孕早期绒毛采集法,还是中期后脐带采血法,均为分析子宫内胎儿细胞染色体的产前诊断法。而胚活检,则是对移植于子宫前的体外受精胚,经显微镜下操作,取出部分胚胎细胞,进行检查确定无异常,再行宫内移值的着床前亦即妊娠前诊断法。此法,一般于8个细胞期前后,在透明带上做小孔,由此吸
Since in vitro fertilization embryo transfer to fertilized eggs cryopreservation, micro-insemination and a series of reproductive medical technology used in clinical, the treatment of infertility, called ever-changing. The following technologies are developed and applied in some countries in Europe and the United States in recent years. First, the embryo biopsy (embryo biopsy): so far the application of fetal diagnostic techniques, either in the second trimester amniocentesis method, the first trimester villus collection method, or mid-term umbilical cord blood collection methods are for the analysis of intrauterine fetal cell chromosome prenatal diagnosis . The embryo biopsy, it is transplanted in front of the uterus in vitro fertilized embryos, the operation under the microscope, remove some of the embryonic cells, check to determine no abnormalities, and then intrauterine transfer of the pre-pregnancy that is, before the diagnosis. This method, usually in the 8 cell cycle before and after making holes in the zona pellucida, thus sucking