Media solutions and methods for cryopreservation and thawing of in vitro fertilization specimens
US7943293B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 27, 2009 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Aug 7, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N1/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A medium solution which will increase the growth, survival and ultimately the live birth rate of oocytes and embryos which have been or will be subjected to cryopreservation. The solution contains varied amounts of glucose, pyruvates, amino acids, vitamins K5 and C, antioxidants, fatty acids to supply the specimens with the chemical ingredients and uptake requirements required to recover and prosper during and after the cryopreservation process. The solution supplies nutrients to the specimens that will replenish depletion and damage to the specimens and their mitochondria, spindles and structural features, such as cell walls. One formulation addresses the additional requirements of frozen specimens as opposed to the current media solutions and methods which treat the un-frozen specimens the same as the frozen specimens when recovering them from cryopreservation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.