Device for freezing biological products contained in straws

Details Device for freezing biological products contained in straws Device for freezing biological products contained in straws

1985-01-04

1986-04-08

Capossela, Ronald C.

Refrigeration

Means producing shaped or modified congealed product

62 60, 62 78, 62383, 62514R, 426 85, F25C 100

Patent

active

045804095

ABSTRACT:
The invention relates to the freezing of biological products contained in straws and more particularly to the initiation of the crystallization phase. A series of straws is disposed in such manner that the straws are arranged in parallel side-by-side relation and a crystallization bar (10) is mounted by springs (20) on two arms (11 and 12) connected to a rotary shaft (13). The arms shift the bar between a waiting position in a receiver-cradle (16) which is deeply cooled by a pipe (17-18) and an operative position in which is bears against the straws. Application in the freezing of blood cells, human and animal sperm, fragments of biological tissues and embryos, etc.

REFERENCES:
patent: 2591375 (1952-04-01), Radford
patent: 2746265 (1956-05-01), Mills
patent: 4091632 (1978-05-01), Marchewka et al.
patent: 4134494 (1979-01-01), Wong

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