首页>
外国专利>
Storage system comprising an emptied zona pellucida and spermatozoa placed therein and a method of cryopreservation
Storage system comprising an emptied zona pellucida and spermatozoa placed therein and a method of cryopreservation
展开▼
机译:包括倒空的透明带和放置在其中的精子的存储系统以及冷冻保存的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A procedure for cryopreservation and efficient post-thaw recovery of a single or few cells, preferably human spermatozoa, their precursor cells or blastomeres, which is achieved by injecting cells into cell- free mammalian zonae pellucidae. The cells may also be of any other type where there are provided a relatively small number of valuable cells which must be retrieved. The zona pellucida may be cryopreserved with the cells contained therein. The method involves a combination of physical micromanipulation procedures and cryoprotectant mediated cryopropreservation. The zonae may be tracked by positioning them into straws between two small air bubbles prior to preservation. There is a high recovery of zonae and sperm within the zonae, and a high fertilization rate of the sperm using ICSI after recovery.
展开▼