Abstract: The invention relates to a device for cryogenic freezing of units for packaging a biological substance comprising a receptacle (2) configured such that a stream of vapour of a cryogenic agent circulates therein, having at its top an insertion opening (10) for inserting the packaging units into the receptacle (2), a lid (3) that is able to move between a closed position in which it closes the insertion opening (10) and an open position in which it leaves the insertion opening (10) open, and a port (4) for discharging the vapour, provided in the receptacle (2), characterised in that the device (1) further comprises a stopper (13) mechanically connected to the lid (3) such that, when the lid (3) is in the closed position, the stopper (13) is spaced apart from the port (4) and, when the lid (3) is in the open position, the stopper (13) closes the port (4).

Abstract: The invention concerns a cryogenic system (1) for vitrifying a substance comprising biological material to be preserved in a receiving region of a thin tube (8), comprising a tank (10) containing a bath (11) of a cryogenic agent and a support member (80) mounted on said tank in a predetermined first position in which said tube is orientated upright, the receiving region being immersed in a liquid zone (17) of said bath, and an opening of said tube being situated above said bath, in a zone of ambient air above said bath, in order to introduce the substance into the tube, the support member being mounted on said tank in a second predetermined position, in which said receiving region is immersed in the liquid zone and said opening is situated immediately above said liquid zone, in a gaseous zone (18) of said bath above said liquid zone and below said zone of ambient air, and being raised from said second position.

Abstract: The assembly comprises a ramp (4) and a straw transfer device (60) comprising two lateral pads and a straw (1) collector arranged between the two lateral pads, the freezer ramp (4) and the transfer device (60) being configured to allow a first end position, to allow a second end position, and such that, by sliding the transfer device (60) from the first end position to the second end position with the pads that slide on angled sections (19) of the ramp (4), the plurality of straws (1) initially arranged on the ramp (4) is recovered in the collector of the transfer device (60).

Abstract: A support element for a plurality of packaging straws, the support element comprising a plate (31) and two flanges (37) rigidly connected to said plate (31) and comprising a fluted surface (53) having a plurality of similar grooves (36), each flange (37) comprising a central part as well as a first projecting part (42) and a second projecting part (43), each extending from one side of the central part, characterised in that the first projecting part comprises a bracket (42) having a bearing face and the second projecting part comprises another bracket (43) having another bearing face, said bearing face and said other bearing face being upwards facing and, in the direction of height, said bearing face being further from said plate (31) than said other bearing face. The assembly comprises the support element and a freezing rack (4).

Abstract: Assembly for handbag multiple straws for packaging animal semen, each having a predetermined diameter and a predetermined length, comprising a freezing ramp (4) that has a rim and a bottom surrounding a central free space (5), said bottom comprising two toothed walls (11, 25) which extend longitudinally along said central free space (5), each torn lied wall (11.25) having a toothing at its top, the toothings of said toothed walls (11, 25) being identical, with each trough being delimited by a surface having a curvature along said predetermined diameter, characterized in that it further comprises a crosspiece (100) comprising parts (103, 104) that are able to move with respect to one another and are configured to permit a position in which said crosspiece (100) is removably joined to said freezing ramp (4) at a location provided to receive at least one said straw (1).

Abstract: The invention concerns a cryogenic system (1) for vitrifying a substance comprising biological material to be preserved in a receiving region of a thin tube (8), comprising a tank (10) containing a bath (11) of a cryogenic agent and a support member (80) mounted on said tank in a predetermined first position in which said tube is orientated upright, the receiving region being immersed in a liquid zone (17) of said bath, and an opening of said tube being situated above said bath, in a zone of ambient air above said bath, in order to introduce the substance into the tube, the support member being mounted on said tank in a second predetermined position, in which said receiving region is immersed in the liquid zone and said opening is situated immediately above said liquid zone, in a gaseous zone (18) of said bath above said liquid zone and below said zone of ambient air, and being raised from said second position