健康孩子的诞生是父母的骄傲,是家庭中欢乐的源泉。但是,残疾儿童的降生不但是家庭的悲剧,也给整个社会增添了沉重的负担。近年来,随着医疗卫生事业的蓬勃发展,优生、优育、优教工作的普及,以及超生波检查、羊水及绒毛染色体分析和基因诊断技术的广泛应用,产前诊断有了长足的进展。许多染色体异常、先天畸形和先天代谢性疾病严重的胎儿都做了早期流产处理。但也有不少不易发现的较轻病残儿,或者妊娠后期才发现的残疾儿出生,给家庭和社会带来负担。为了改变这种状况,一 The birth of a healthy child is the pride of parents and the source of joy in the family. However, the birth of children with disabilities is not only a tragedy of families but also adds a heavy burden to the entire community. In recent years, with the vigorous development of medical and health undertakings, the popularization of eugenics, prenatal education and pre-school education, as well as the extensive application of ultrasonography, amniotic fluid and villus chromosome analysis and genetic diagnosis techniques, great progress has been made in prenatal diagnosis. Many abnormal chromosomes, congenital malformations and congenital metabolic diseases have done a very early fetal abortion. However, there are also many less disabled children who are not easy to find, or the disabled children found during the late pregnancy have a burden on families and the community. In order to change this situation,