Abstract: A sheathing for packaging a predetermined volume of a biological substance designed to be immersed in a liquid cryogenic agent, the sheathing including a thin tube and a ballast associated with the thin tube.

Abstract: The invention concerns an assembly for packaging a volume of substance to be preserved by cryogenic vitrification characterized in that it comprises a sheathing (2) including a thin tube (6) having a predetermined internal diameter (Di) and a predetermined length (L); a support (3) comprising a zone for receiving said predetermined volume, said support (3) capable of being introduced inside said thin tube (6); and a plunger (4) for pushing forward said support (3), said support (3) then taking up a predetermined position in said thin tube (6) with an interval between each end (21, 22) of said support (2) and the neighboring end (8, 9) of said thin tube (6).

Abstract: The invention relates to a packaging tube for a pre-determined volume of a biological substance to be stored at a low temperature and to a system including same. The inventive packaging tube comprises a portion (2) for receiving the volume and an annular end portion (3) designed to be more easily crushed by pinching than the receiving portion (2) and to adopt a flattened position in which two lips (30) are in contact with one another. In addition, the annular end portion (3) is designed such that the lips (30) are secured to one another in order to form a seal (31) on the tube. The system includes at least one such tube and a jaw welding device designed to move the annular portion (3) into the flattened position and to weld the lips (30) to one another in order to form the seal (31).

Abstract: The invention concerns a sheathing for packaging a predetermined volume of a biological substance designed to be immersed in a liquid cryogenic agent comprising a thin tube (6), characterized in that it further comprises a ballast (24) associated with said thin tube (6).

Abstract: The invention concerns an assembly for packaging a volume of substance to be preserved by cryogenic vitrification characterized in that it comprises a sheathing (2) including a thin tube (6) having a predetermined internal diameter (Di) and a predetermined length (L); a support (3) comprising a zone for receiving said predetermined volume, said support (3) capable of being introduced inside said thin tube (6); and a plunger (4) for pushing forward said support (3), said support (3) then taking up a predetermined position in said thin tube (6) with an interval between each end (21, 22) of said support (2) and the neighbouring end (8, 9) of said thin tube (6).

Abstract: A straw (1) for the conservation of small quantities of substances, in particular biological substances, having a segment of tube provided inside one end with a stopper including gel powder, characterized in that a proportion of the gel powder is replaced with dispersed nonabsorbent material, the stopper thus having a mixture of gel powder and dispersed nonabsorbent material.

Abstract: A straw (1) for the conservation of small quantities of substances, in particular biological substances, the straw having a segment of tube (2) provided, inside one end, with a stopper (3) including gel powder, characterized in that the straw stopper includes a thermoplastics material core (4) sheathed with filaments constituting a sheath (5). The straw of the invention absorbs only a very small amount of the liquid contained therein.

Abstract: A sachet (11) for packaging animal semen, comprising two thermoplastics material films delimiting a pocket (12) along a closed path of generally rectangular shape defining two shorter sides and two longer sides when the sachet is empty, wherein one of said shorter sides has an interruption extended by a filler conduit (14) and defining a filler area (15) in said thermoplastics material films and the other of said shorter sides has an interruption extended by a drainer conduit and defining a drainer area (17) in said thermoplastics material films, characterized in that said drainer conduit (16) has two different diameters (D1 and D2), of which the smaller diameter (D1) is at the end communicating with the interior of said sachet.

Abstract: A straw (1) for the conservation of small quantities of substances, in particular biological substances, comprising a segment of tube provided inside one end with a stopper including gel powder, characterized in that a proportion of the gel powder is replaced with dispersed nonabsorbent material, said stopper thus comprising a mixture of gel powder and dispersed nonabsorbent material.

Abstract: A straw (1) for the conservation of small quantities of substances, in particular biological substances, said straw comprising a segment of tube (2) provided, inside one end, with a stopper (3) including gel powder, characterized in that said straw stopper includes a thermoplastics material core (4) sheathed with filaments constituting a sheath (5).

Abstract: A sachet (11) for packaging animal semen, comprising two thermoplastics material films delimiting a pocket (12) along a closed path of generally rectangular shape defining two shorter sides and two longer sides when the sachet is empty, wherein one of said shorter sides has an interruption extended by a filler conduit (14) and defining a filler area (15) in said thermoplastics material films and the other of said shorter sides has an interruption extended by a drainer conduit and defining a drainer area (17) in said thermoplastics material films, characterized in that said drainer conduit (16) has two different diameters (D1 and D2), of which the smaller diameter (D1) is at the end communicating with the interior of said sachet.

Abstract: A pouch or sachet for packaging biologic liquid substances is made of two thermoplastics material films welded together. The weld delimits a pocket. A filler passage is connected to the top of the pocket. One of the thermoplastics material films has a peelable area at the top. The peelable area contains wax. After filling, the pouch is sealed in a sealing area inside the peelable area, near the top of the passage and transversely to its axis. The pouch can be opened easily, in the required area, without using any cutting tools, by manually separating the two thermoplastics material films. Positive guidance is then assured on insertion of a probe into the passage of the pouch.