Apparatus and method for separating and storing human reproductive material in a cryotank
US9591846B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 2, 2007 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Jan 13, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/435
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus and method for separating individual human reproductive material from a fertilization dish and storing the material in a cryotank for future fertilization and implantation. The apparatus includes an elongate cryostraw having a first open end and second heat-sealable open end, a channel extending between said ends, and an internal, calibrated volume VC. A displacement bulb is connected to the first end of the cryostraw for admitting and emitting the material into said cryostraw. The bulb has a total volume VB1, an internal cavity with a compressible end volume VB2, a first seal with the first end of said cryostraw; and, means for limiting the intake volume displacement produced in said cryostraw to an amount less than VC no matter how far the bulb is squeezed. The bulb produces less than a unit volume of displacement in the cryostraw when the bulb is squeezed and its volume VB1 is reduced by a unit volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.