试管上倾-试管婴儿移植后二超没有胎心怎么办
对于很多想去美国做试管婴儿的人来说，了解美国第三代试管婴儿技术就显得很重要了。就技术发展而言，美国试管婴儿技术是目前最成熟也是最先进的，同时也是成功率最高的。
For many people who want to go to the United States to do IVF, the United States to understand
the third generation of IVF technology is very important. In terms of technology development,
the U.S. IVF technology is currently the most mature and most advanced, but also the highest rate
of success.
那么，美国试管婴儿技术到底怎么样呢？第三代试管婴儿技术相比前两代有哪些特别 的改进和提升
呢？下面就一起来了解一下吧。
So what's the US test tube baby technology? What are the special improvements and promotion
compared to the first two generations of the third generation of IVF technology? Come together
and learn about it..
试管婴儿有个衍生技术，叫着床前诊断，俗称“第三代试管婴儿技术”，其意义就在于优生。 先进的生
殖医学研究已将人类生殖的自我控制推向新的极限：第一代试管婴儿(IVF)，解决的是因女 性因素引致的不
孕;第二代试管婴儿(ICSI)， 解决因男性因素引致的不育问题;而第三代试管婴 儿技术(PGD)所取得的突破
是革命性的，它从生物遗传学的角度，帮助人类选择生育最健康的后代， 为有遗传病的未来父母提供生育
健康孩子的机会。那么，第三代试管婴儿成功率有多高?
The test tube baby has a derivative technology, called the implantation before diagnosis,
commonly known as the generation of IVF technologyits significance lies in the students.
Advanced reproductive medical research has human reproduction of self-control is pushed to the
limit: the first generation of in vitro fertilization (IVF), the solution is due to infertility
caused by female factors; the second generation test tube baby (ICSI) to solve because caused
by male factor infertility problems; and the third generation of test tube baby Technology (PGD)
made the breakthrough is a revolutionary, it from the point of view of biological genetics help
humans choose to give birth to healthy offspring, genetic disease in the future parents to provide
opportunities for healthy babies. So, the success rate of the third generation of IVF?
第三代试管婴儿成功率
Third generation of IVF success rate
随着医学仪器设备的完善以及技术 的提升，第三代试管婴儿的成功率最高可高达65%，成功率主要因
医院差异而有所不同，但总体而言成 功率较高。
With the improvement of medical instrument and equipment technology and improvement of, the
success of the third generation of test tube baby rate maximum up to 65%. The success rate was
mainly differ due to differences in the hospital, but overall higher success rate.
第三代试管婴儿技术原理
Third generation of tube baby technology principle
一个健康的卵细胞含有46 个染色体，排列成23对，但在卵细胞可以受精之前，先要进行一次减数分
裂，每对染色体一分为二，其 中不需要的一组23个染色体被排出卵细胞，形成一种称为极体的结构。该检
测是指从体外受精的胚胎中 取1到数个细胞或者取卵细胞的第一极体在种植前进行基因分析，可用以鉴定
胚胎性别，分析胚胎染色体 ，然后移植基因正常的胚胎，从而达到优生优育的目的。1990年报道了首例应
用种植前基因诊断鉴定 性别后，选择女性胚胎移植入得以妊娠。这种孕前基因诊断的胚胎分析技术，已经
使用了数年，用于鉴定 那些父母有遗传病史的胎儿是否有不健康的迹象，比如胆囊纤维化或者血友病等等。
但是现在，美国少数 妇产科专家使用这一技术让父母选择宝宝的性别。
A healthy egg cell contains 46 chromosomes, arranged in 23 pairs, but in the oocytes can be
fertilized before, first to a meiotic division, each pair of chromosomes split, which does not
require a set of 23 chromosomes is discharged out of the egg cell, forming a kind to be called
the polar body structure. The detection is refers to from in vitro fertilization embryo from 1
to the number of cells or take the egg cell of the first polar body in preimplantation genetic
analysis, can be used to identify the sex of the fetus. Analysis embryo chromosome, and then
transplanted genetically normal embryos, so as to achieve the purpose of prenatal and postnatal
care. In 1990 reported the first case of application of gene diagnosis of sex identification before
planting, selection of female embryos into the pregnancy. The prenatal gene diagnosis of the
embryos analysis techniques have been used for a number of years, used to identify the parents
whether genetic history of fetal unhealthy signs, such as cystic fibrosis or hemophilia and so
on. But now, a handful of women in the United States use the technology to give parents a choice
for baby's sex.
第三代试管婴儿的安全性
Safety of the third generation of test tube infants
多年的试验和对出生的婴儿进行 统计，表明第三代试管婴儿不会导致先天缺陷或染色体变异的增加。
第三代试管婴儿在胚胎的基因物质活 跃之前进行，因为它做的很早，胚胎里面的所有细胞仍然是相同的，
并且每个细胞都能够发育成为胎儿的 任何部分。去除早期胚胎的细胞不会改变胚胎发育成为一个完整正常
妊娠的能力。
Years of trials and statistics on the birth of the baby, show that the third generation of
IVF will not lead to an increase in the birth defects or chromosomal mutation. The third generation
of IVF embryo genetic material active before, because any part of it very early in the morning,
all the cells inside the embryo is still the same, and each cell can develops into the embryo.
The removal of the early embryos of the cells does not change the embryo development into a full
normal pregnancy.
就全球试管婴儿技术来说，美国试管婴儿的PGD技术 是全球最顶尖的，也是全球允许做性别筛选的2
个国家之一，此项技术是目前是最有效的性别选择方法， 此方法的准确度为100%，为广大患者家庭实现家
庭两性数目平衡带来了突破性的技术性革命。
On the global IVF and PGD technique the test tube baby is global top, is one of the world's
allows for gender selection, one of the two countries, the technology is currently is the most
effective gender selection method, the accuracy was 100%, for the majority of patients family
achieve bisexual family number balance brought a breakthrough technology revolution.
北京多福赴美孕育是一家专注于为不孕不育患者提供赴美生殖医疗咨询服务的机构，在美国与多家试管婴
儿医疗中心和第三方权威机构保持着良好的联系与沟通，主要是面向国内的高龄女性、生殖系统患有疾病
的患者、有家族遗传病史需要基因筛查的患者、高端人群需要孕育私人个性化定制的客户提供帮助和服务。
北京多福赴美孕育医疗依托国际化环境形势和强大的医疗中心资源，权威合作第三方生殖机构，开展试管
婴儿、美籍代孕、赴美月子三项优势服务。
Beijing DuoFuBaby the United States breeds is a focus for infertility patients to provide the United beauty
reproductive health consulting service agencies. In the United States and several IVF medical center and third
party authority maintained a good contact and communication, mainly for the domestic elderly women,
reproductive system is suffering from a disease patients, there is a family history of genetic disease need gene
screening of patients, high-end crowd need to nurture private customization customers to provide help and services.
Beijing Fuk the United States birth medical rely on international environmental situation and strong medical
resource center, authority cooperation third-party reproductive mechanism, to carry out the test tube baby,
American surrogate, went to the month of three service advantage.
北京多福赴美孕育医疗精心推荐经验丰富的美国专 家，以丰富的妇产及试管婴儿经验，开展试管婴儿基因
筛查PGS，定制婴儿性别，全面排除新生儿的基 因缺陷等专业医疗服务。
Beijing Fuk the United States birth medical carefully recommended experienced experts in the United States, with
rich experience in obstetrics and Gynecology and IVF, to carry out a test tube baby gene screening PGs, custom
baby gender total exclusion of neonatal gene defects and other professional medical services.
“我们拥有的金牌服务团队，将全心全意提供全面优质的服务，让你跨越语言和文 化的障碍，为您打造个
性化、私人化、专业化的孕育服务。成为您的孕育之路最温暖可靠的港湾。
the barriers of language and culture, for you to create personalized, private and professional preparation service.
Become the most warm and reliable harbor in your birth path..
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