Freezing outer tube for freezing ovarian tissue

Abstract

The utility model relates to the technical field of freezing tubes, and discloses a freezing outer tube for freezing ovarian tissues, which comprises a freezing tube body, a sealing plug and a partition plate, the partition plate is arranged in the middle of the inside of the freezing tube body, and the upper end of the partition plate is arc-shaped to form an arc-shaped top end. The arc-shaped top end is located above the top end of the freezing tube body, the surface of the bottom end of the sealing plug is concaved upwards to form a clamping groove, the arc-shaped top end is inserted into the clamping groove in a sealed mode, and a partition plate is arranged in the freezing tube body so that an inner cavity of the freezing tube body can be divided into two parts including an ovarian tissue slice and small tissue blocks for safety problem detection after tissue transplantation. And the highest end of the partition plate is positioned above the freezing tube body and is provided with the arc-shaped end, so that tissues can quickly enter a corresponding cavity channel without being mixed, the overall sealing effect is good, and leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of freezing tubes, in particular to an outer freezing tube for freezing ovarian tissue. Background Art

[0002] At present, ovarian tissue cryopreservation technology is the fastest and most effective way to preserve fertility for adult women awaiting radiotherapy and chemotherapy. During the freezing and testing process of ovarian tissue, medical staff use medical tweezers to place ovarian tissue slices and small pieces of tissue for safety testing after transplantation into different freezing tubes filled with freezing fluid.

[0003] Chinese patent CN217609215U records an ovarian tissue cryotube, including a tube body and a tube cover, which allows ovarian tissue slices and small tissue pieces for testing safety issues after tissue transplantation to be stored in the same cryotube, thereby improving the efficiency of the detection experiment.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there are the following defects: in the above-mentioned structure, there is still a certain distance between the top of the partition plate and the upper part of the tube body, and the upper diameter of the tube body itself is relatively small. When using it, the forceps need to be inserted into the tube body for a certain distance and the tissue needs to be placed in the tube cavity with great care. It is also easy to place the tissue in the same cavity built into the partition plate, which will cause confusion of the tissue. For this reason, we designed a cryotube for ovarian tissue freezing. Utility Model Content

[0005] In order to solve the technical problem that the tissue needs to be placed in the lumen with extreme caution and the tissue can be easily placed in the same lumen and built into the partition plate, the utility model provides a freezing outer tube for freezing ovarian tissue.

[0006] The utility model is implemented by the following technical scheme: a freezing outer tube for freezing ovarian tissue, comprising a freezing tube body, a sealing plug and a partition plate, wherein a partition plate is arranged at the middle position inside the freezing tube body, the upper end of the partition plate is arc-shaped to form an arc-shaped top end, the arc-shaped top end is located above the top end of the freezing tube body, the bottom end surface of the sealing plug is recessed upward to form a snap-in groove, and the arc-shaped top end is sealably inserted in the snap-in groove.

[0007] As a further improvement of the above scheme, both the front and rear sides of the upper part of the partition plate are chamfered to form a sealing arc surface, and the sealing arc surface is away from the inner wall of the freezing tube body and has a spacing of 0.5-1MM. The lower part of the arc-shaped bottom end of the partition plate is coplanar with the upper end of the freezing tube body, and the lower part of the arc-shaped bottom end of the partition plate is set to a rounded structure. The rounded corner makes a certain gap between the lower part of the arc-shaped bottom end and the upper part of the inner wall of the freezing tube body, which can prevent the inner wall of the clamping groove from directly contacting the upper end surface of the freezing tube body, and the outer ring surface of the sealing plug is in contact with it, which can improve the sealing effect between the two;

[0008] The bottom end of the partition plate is provided with an arc-shaped end, and the arc-shaped end is designed in a semicircular structure. The bottom end of the freezing tube body is in a hemispherical structure. The matching arc-shaped end can divide the inside of the freezing tube body into two, thereby facilitating the placement of two different slice tissues.

[0009] As a further improvement of the above scheme, the cross-section of the lower part of the arc-shaped top of the partition plate matches the cross-section of the freezing tube body, and the cross-section of the arc-shaped top matches the cross-section of the snap-in groove. The top of the partition plate can be completely inserted into the snap-in groove and can be sealed accordingly without leakage.

[0010] As a further improvement of the above scheme, the freezing tube body includes a straight tube section, a placement section and a protruding section. The upper diameter of the straight tube section is expanded outward to form a placement section, and the outer ring surface of the upper half of the placement section is thickened outward to form a protruding section. Part of the inner wall of the protruding section is removed, and the chamfered corner between the bottom end of the inner wall of the protruding section and the upper part of the placement section forms a contact arc surface. An expansion arc surface is provided at the connection between the upper part of the straight tube section and the lower part of the placement section. The placement section with a widened diameter design facilitates placing the tissue into the inner cavity of the freezing tube body through tweezers, and the design of the protruding section and the contact arc surface increases the contact area between the sealing plug and its inner wall, thereby improving the firmness and sealing of the connection of the sealing plug without increasing the thickness of the inner wall of the freezing tube body itself.

[0011] As a further improvement of the above scheme, the top of the partition plate is chamfered to form a contact surface one and a contact surface two, wherein the contact surface one is designed to fit the expansion arc surface, and the contact surface two is designed to fit the contact arc surface, thereby ensuring that the inner wall of the partition plate can completely fit with the inner wall of the freezing tube body, and the partition plate can also fit with the snap-in groove of the sealing plug, thereby improving the sealing effect.

[0012] As a further improvement of the above scheme, the bottom edge of the sealing plug is chamfered to form a contact arc portion, and the contact arc portion is in contact with the contact arc surface, and the curvature of the contact arc portion is consistent with the curvature of the contact surface. The design of the contact arc portion increases the contact area between the sealing plug and the inner wall of the freezing tube body, thereby improving the firmness and sealing of the sealing plug connection.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model divides the inner cavity of the freezing tube into two by arranging a partition plate inside the freezing tube body. Ovarian tissue slices and small tissue pieces for safety problems after transplantation of the tissue can be stored in the same freezing tube. The highest end of the partition plate is located above the freezing tube body and is provided with an arc end. The tissue can quickly enter the corresponding cavity without confusion. The overall sealing effect is good and leakage will not occur.

[0015] 2. The upper opening of the freezing tube body is expanded to form a placement section and a protruding section. The placement section with a widened diameter facilitates the placement of tissue into the inner cavity of the freezing tube body through tweezers, and the design of the protruding section and the contact arc surface increases the contact area between the sealing plug and its inner wall, thereby improving the firmness and sealing of the sealing plug connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a freezing outer tube for freezing ovarian tissue provided by the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the connection between the middle sealing plug and the partition plate;

[0018] Figure 3 for Figure 1 Schematic diagram of the internal structure;

[0019] Figure 4 for Figure 3 A schematic diagram of the structure in which the sealing plug is not installed;

[0020] Figure 5 It is a schematic diagram of the structure of the freezing tube body and the partition plate.

[0021] Description of main symbols:

[0022] 1. Refrigeration tube body; 11. Straight tube section; 12. Expansion arc surface; 13. Placement section; 14. Protruding section; 15. Protruding arc surface; 16. Contact arc surface; 2. Sealing plug; 21. Contact arc portion; 22. Snap-in groove; 3. Partition plate; 31. Contact surface one; 32. Arc end; 33. Contact surface two; 34. Arc top; 35. Sealing arc surface. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0024] Example:

[0025] Please combine Figure 1-Figure 5 A freezing outer tube for freezing ovarian tissue in this embodiment includes a freezing tube body 1, a sealing plug 2 and a partition plate 3. A partition plate 3 is arranged in the middle position inside the freezing tube body 1. The upper end of the partition plate 3 is designed to be arc-shaped and form an arc-shaped top 34. The arc-shaped top 34 is above the top of the freezing tube body 1. The bottom end surface of the sealing plug 2 is recessed upward to form a snap-in groove 22, and the arc-shaped top 34 is sealed and inserted in the snap-in groove 22.

[0026] The front and rear sides of the upper part of the partition plate 3 are both chamfered to form a sealing arc surface 35, and the sealing arc surface 35 is away from the inner wall of the freezing tube body 1 and has a spacing of 0.5-1MM. The lower part of the arc bottom end of the partition plate 3 is coplanar with the upper end of the freezing tube body 1, and the lower part of the arc bottom end of the partition plate 3 is set to a rounded structure. The rounded corners make a certain gap between the lower part of the arc bottom end and the upper part of the inner wall of the freezing tube body 1. These can prevent the inner wall of the clamping groove 22 from directly contacting the upper end surface of the freezing tube body 1, and the outer ring surface of the sealing plug 2 is in contact with it, which can improve the sealing effect between the two;

[0027] The bottom end of the partition plate 3 is provided with an arc-shaped end 32, which is designed as a semicircular structure. The bottom end of the freezing tube body 1 is a hemispherical structure. The matching arc-shaped end 32 can divide the inside of the freezing tube body 1 into two parts, thereby facilitating the placement of two different slice tissues.

[0028] The cross-section of the lower part of the arc-shaped top 34 of the partition plate 3 matches the cross-section of the freezing tube body 1, and the cross-section of the arc-shaped top 34 matches the cross-section of the snap-in groove 22. The upper part of the partition plate 3 can be completely inserted into the snap-in groove 22 and can be sealed accordingly without leakage.

[0029] The freezing tube body 1 includes a straight tube section 11, a placement section 13 and a protruding section 14. The upper diameter of the straight tube section 11 is expanded outward to form the placement section 13, and the outer ring surface of the upper half of the placement section 13 is thickened outward to form the protruding section 14. Part of the inner wall of the protruding section 14 is removed, and the bottom end of the inner wall of the protruding section 14 and the upper part of the placement section 13 are chamfered to form a contact arc surface 16. An expansion arc surface 12 is provided at the connection between the upper part of the straight tube section 11 and the lower part of the placement section 13. The placement section 13 with a widened diameter is convenient for placing the tissue into the inner cavity of the freezing tube body 1 through tweezers, and the design of the protruding section 14 and the contact arc surface 16 increases the contact area between the sealing plug 2 and its inner wall, thereby improving the firmness and sealing of the connection of the sealing plug 2 without increasing the thickness of the inner wall of the freezing tube body 1 itself.

[0030] The top of the partition plate 3 is chamfered to form a contact surface 1 31 and a contact surface 2 33, wherein the contact surface 1 31 is designed to fit the expansion arc surface 12, and the contact surface 2 33 is designed to fit the contact arc surface 16, thereby ensuring that the inner wall of the partition plate 3 can completely fit with the inner wall of the freezing tube body 1, and the partition plate 3 can also fit with the snap-in groove 22 of the sealing plug 2, thereby improving the sealing effect.

[0031] The rounded corners at the bottom edge of the sealing plug 2 form a contact arc portion 21, and the contact arc portion 21 fits against the contact arc surface 16. The curvature of the contact arc portion 21 is consistent with the curvature of the contact surface 33. The design of the contact arc portion 21 increases the contact area between the sealing plug 2 and the inner wall of the freezing tube body 1, thereby improving the firmness and sealing of the connection of the sealing plug 2.

[0032] The implementation principle of a freezing outer tube for freezing ovarian tissue in the embodiment of the present application is: in actual use, first pull out the sealing plug 2 upward, and inject the cryogen into the freezing tube body 1. At this time, tweezers can be used to place the tissue in the two channel cavities inside the freezing tube body 1. Since the upper diameter of the freezing tube body 1 is enlarged to form a placement section 13 and a protruding section 14, it makes it easier for the tweezers to reach into the inner cavity of the freezing tube body 1, and we extend the height of the partition plate 3 upward so that its highest end is above the freezing tube body 1, so that when placing, the tissue can quickly enter the corresponding cavity without confusion.

[0033] By arranging a partition plate 3 inside the freezing tube body 1 to divide the inner cavity into two, the ovarian tissue slices and the tissue pieces for safety problems after the tissue transplantation can be stored in the same freezing tube, and the highest end of the partition plate 3 is located above the freezing tube body 1 and is provided with an arc end 32, so that the tissue can quickly enter the corresponding cavity without confusion, and the overall sealing effect is good and no leakage occurs;

[0034] The upper opening of the freezing tube body 1 is expanded to form a placement section 13 and a protruding section 14. The placement section 13 with a widened diameter facilitates placement of tissue into the inner cavity of the freezing tube body 1 by forceps, and the design of the protruding section 14 and the contact arc surface 16 increases the contact area between the sealing plug 2 and its inner wall, thereby improving the firmness and sealing of the connection of the sealing plug 2.

[0035] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A freezing outer tube for freezing ovarian tissue, comprising a freezing tube body (1), a sealing plug (2) and a partition plate (3), characterized in that: A partition plate (3) is provided in the middle position inside the freezing tube body (1); the upper end of the partition plate (3) is designed to be arc-shaped to form an arc-shaped top end (34); the arc-shaped top end (34) is located above the top end of the freezing tube body (1); the bottom end surface of the sealing plug (2) is recessed upward to form a snap-in groove (22), and the arc-shaped top end (34) is sealed and inserted into the snap-in groove (22).

2. A freezing outer tube for freezing ovarian tissue according to claim 1, characterized in that: The upper front and rear sides of the partition plate (3) are both chamfered to form a sealing arc surface (35), and the sealing arc surface (35) is away from the inner wall of the freezing tube body (1) and has a spacing of 0.5-1MM; The bottom end of the partition plate (3) is provided with an arc-shaped end (32), and the arc-shaped end (32) is designed in a semicircular structure.

3. The freezing outer tube for ovarian tissue freezing according to claim 1, characterized in that: The cross section of the lower part of the arc-shaped top end (34) of the partition plate (3) matches the cross section of the freezing tube body (1), and the cross section of the arc-shaped top end (34) matches the cross section of the clamping groove (22).

4. The freezing outer tube for freezing ovarian tissue according to claim 1, characterized in that: The freezing tube body (1) comprises a straight tube section (11), a placement section (13) and a protruding section (14); the upper diameter of the straight tube section (11) is expanded outward to form the placement section (13); and the outer ring surface of the upper half of the placement section (13) is designed to be thickened outward to form the protruding section (14); a portion of the inner wall of the protruding section (14) is cut off, and the bottom end of the inner wall of the protruding section (14) and the upper part of the placement section (13) are chamfered to form a contact arc surface (16); and an expansion arc surface (12) is provided at the connection between the upper part of the straight tube section (11) and the lower part of the placement section (13).

5. The freezing outer tube for freezing ovarian tissue according to claim 4, characterized in that: The upper part of the partition plate (3) is respectively chamfered to form a contact surface 1 (31) and a contact surface 2 (33), wherein the contact surface 1 (31) is designed to fit the expansion arc surface (12), and the contact surface 2 (33) is designed to fit the contact arc surface (16).

6. The freezing outer tube for freezing ovarian tissue according to claim 5, characterized in that: The bottom edge of the sealing plug (2) is chamfered to form a contact arc portion (21), and the contact arc portion (21) fits the contact arc surface (16), and the curvature of the contact arc portion (21) is consistent with the curvature of the second contact surface (33).

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