Implement and method for freezing and storing egg

A technology of utensils and suckers, which is applied in the fields of botany equipment and methods, biochemical equipment and methods, and methods based on microorganisms, and can solve problems such as difficult operations, damage to ultra-thin tubes, and invasion of saprophytic bacteria

Active Publication Date: 2006-05-17
KITAZATO BIOPHARMA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the egg collection pipette is removed from the vitrification tool after the eggs are frozen, saprophytic bacteria may invade the inside of the vitrification tool.
In addition, there is a danger of damaging the ultrathin tube when the vitrification tool is immersed in liquid nitrogen
In addition, since it is necessary to insert the ultrathin tube part of the vitrification tool into the outer cylinder part for storage in liquid nitrogen, the operation is difficult.

Method used

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  • Implement and method for freezing and storing egg
  • Implement and method for freezing and storing egg
  • Implement and method for freezing and storing egg

Examples

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Embodiment Construction

[0028] Now, the egg freezing preservation appliance of the present invention will be described by using the illustrated embodiment.

[0029] figure 1 It is a perspective view of an embodiment of the egg freezing preservation appliance of the present invention. figure 2 for figure 1 An enlarged side view of a tube for freezing eggs used in the shown egg freezing preservation tool. image 3 for figure 1 It is an enlarged side view of a protective member for a tube for egg freezing storage used in the egg freezing storage tool shown. Figure 4 for figure 1 An enlarged cross-sectional view of the suction device for freezing and preserving tubes used in the freezing and preserving equipment for eggs shown. Figure 5 An enlarged side view of another example of the tube for freezing eggs used in the egg freezing preservation tool of the present invention.

[0030] Figure 6 , Figure 7 and Figure 8 It is an explanatory diagram for explaining the function of the egg freezin...

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Abstract

A tool for freezing eggs (1) includes a tube (2) for freezing eggs made of liquid nitrogen-resistant material; and a metal cylindrical protection member (3) for protecting the tube (2). The tube (2) includes a main body (21) and a smaller diameter portion (22) for egg preservation with an inner diameter in the range of 0.1 mm to 0.5 mm, which can be heat-sealed at the front end of the smaller diameter portion, and can be placed on the main body. The part (21) is heat-sealed. The cylindrical protective part (3) comprises a cylindrical part (31) which receives the front end of the smaller diameter part (22) of the tube (2); a semi-cylindrical part (32) which receives the smaller diameter part (22) The part not received in the cylindrical part (31) and the front end part (21a) of the main body part (21).

Description

technical field [0001] The present invention relates to an egg freezing preservation tool and an egg freezing preservation method used for freezing preservation of mammalian eggs, embryos, and the like. Background technique [0002] The cryopreservation of mammalian embryos enables the preservation of genetic resources of a particular line or breed. In addition, this cryopreservation is also effective for maintaining endangered animal species. In addition, this cryopreservation is also used for human infertility treatment. [0003] As a cryopreservation method for mammalian embryos, the following method is proposed in JP 2000-189155 (Patent Document 1), that is, a freezing straw, a freezing On the inner surface of a container for cryopreservation such as a vial or a freezing tube, attach a minimum amount of vitrification solution sufficient to cover these embryos or eggs, seal the container for cryopreservation, and then contact the container with liquid nitrogen , to coo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02C12N5/06A01N1/02A61B17/42A61D19/00A61D19/02A61J3/00C12M1/00C12N1/04C12N5/02C12N5/08C12N15/00C12R1/91
CPCA01N1/02A61D19/022A01N1/0268C12M3/10
Inventor 桑山正成井上太
Owner KITAZATO BIOPHARMA CO LTD
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