Novel vitrification freezing loading rod

Abstract

The utility model belongs to the technical field of embryo freezing, and particularly relates to a novel vitrification freezing carrying rod which comprises an operation handle, a glass tube is inserted in the middle of the bottom face of the operation handle, a guide frame is fixed to the edge of the bottom face of the operation handle and comprises a guide rod and a blocking plate, the guide rod is fixed to the bottom face of the operation handle, and the blocking plate is fixed to the bottom face of the operation handle. A blocking plate is fixed to one end of the guide rod, the outer side of the operating handle is movably sleeved with a protective sleeve, a connecting ring is fixed to the inner wall of one end of the protective sleeve, a through hole is formed in the side wall of the connecting ring, and the guide rod penetrates through the through hole. After freezing is completed, an operator can push the protective sleeve on the outer side of the operating handle to move downwards through tweezers, so that the protective sleeve moves to the outer side of the guide frame, sleeving protection of the glass tube on the inner side is achieved, operation on the inner side of liquid nitrogen is not needed, safety is high, meanwhile, the protective sleeve slides on the outer side of the operating handle and is guided through the guide frame, and operation is convenient. Alignment is not needed, and the convenience of overall operation is improved.

Description

Technical Field

[0001] This utility model belongs to the field of embryo cryopreservation technology, specifically relating to a novel vitrification cryopreservation carrier. Background Technology

[0002] Embryo cryopreservation carriers are important instruments in the field of assisted reproduction, primarily used for the cryopreservation and storage of human eggs, sperm, and embryos. In assisted reproductive laboratories, high-quality embryos obtained through fertilization and culture, if the mother is not yet ready for transfer, or if there are surplus embryos after successful transfer, need to be frozen in liquid nitrogen for later transfer at an appropriate time. Embryo cryopreservation carriers are the key tools for achieving this process.

[0003] Current embryo freezing methods (vitrification) involve first loading the embryos onto a carrier rod after processing them in a freezing solution. Then, the end of the carrier rod containing the embryo is submerged in liquid nitrogen at -196°C. Technicians then use tweezers to hold the protective sleeve of the carrier rod and immerse it in liquid nitrogen to align the carrier rod and protective sleeve underwater. This method requires high levels of vision and hand-eye coordination and is prone to causing frostbite. Therefore, a new type of vitrification freezing carrier rod is needed to solve these problems. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a novel vitrified cryogenic support rod, which features convenient operation and high safety.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel vitrification freezing support rod, comprising an operating handle, a glass tube inserted into the center of the bottom surface of the operating handle, a guide frame fixed to the edge of the bottom surface of the operating handle, the guide frame comprising a guide rod and a sealing plate, the guide rod fixed to the bottom surface of the operating handle, a sealing plate fixed to one end of the guide rod, a protective sleeve movably sleeved on the outer side of the operating handle, a connecting ring fixed to the inner wall of one end of the protective sleeve, a through hole provided on the side wall of the connecting ring, and the guide rod passing through the through hole.

[0006] As a preferred technical solution of the novel vitrification freezing support rod of this utility model, multiple guide rods and through holes are provided, and the guide rods are located on the outside of the glass tube.

[0007] As a preferred technical solution of the novel vitrification freezing support rod of this utility model, the bottom of the operating handle is fixed with an installation sleeve, the installation sleeve is made of elastic material, one end of the glass tube is inserted into the inner side of the installation sleeve, the inner wall of the installation sleeve is provided with a first limiting groove, and one end of the outer wall of the glass tube is fixed with a first positioning ring, the first positioning ring being located inside the first limiting groove.

[0008] As a preferred technical solution of the novel vitrified freezing support rod of this utility model, a second limiting groove is provided on the outer wall of one end of the operating handle, a third limiting groove is provided on the outer wall of the other end of the operating handle, and a second positioning ring is fixed on the inner wall of one end of the protective sleeve, the second positioning ring being located inside the third limiting groove.

[0009] As a preferred technical solution of this utility model for a novel vitrified freezing support rod, the outer wall of the operating handle is provided with a friction groove.

[0010] As a preferred technical solution of the novel vitrification freezing support rod of this utility model, the length of the guide rod is greater than the length of the glass tube.

[0011] As a preferred technical solution of the novel vitrified freezing support rod of this utility model, a tensioning arc plate is symmetrically fixed on the outer wall of one end of the protective sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In use, this invention comprises an operating handle, a glass tube, a guide frame, and a protective sleeve. The guide frame is positioned at the bottom edge of the operating handle, and the protective sleeve is fitted onto the outside of the operating handle, with its lower end attached to the guide frame. During embryo freezing, the operator moves the protective sleeve along the guide frame, moving it to the outside of the operating handle. After loading the embryo into the inside of the glass tube, the glass tube is inserted into the center of the bottom of the operating handle, positioning it between the four guide rods of the guide frame. The operator then inserts the glass tube into the liquid nitrogen for freezing. After freezing, the operator can use tweezers to push the protective sleeve down from the outside of the operating handle, moving it to the outside of the guide frame. This provides protective fitting of the inner glass tube, eliminating the need for operation inside the liquid nitrogen and ensuring high safety. Furthermore, the protective sleeve slides on the outside of the operating handle and is guided by the guide frame, eliminating the need for alignment and improving overall ease of operation. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a three-dimensional sectional view of the operating handle, glass tube, and guide frame of this utility model;

[0018] Figure 4 This is a three-dimensional sectional view of the protective sleeve of this utility model;

[0019] Figure 5 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0020] Figure 6 For the present utility model Figure 3 Enlarged view of point B in the middle;

[0021] Figure 7 For the present utility model Figure 4 Enlarged diagram of point C in the middle.

[0022] In the diagram: 1. Operating handle; 11. Mounting sleeve; 111. First limiting groove; 12. Second limiting groove; 13. Third limiting groove; 14. Friction groove; 2. Glass tube; 21. First positioning ring; 3. Guide frame; 31. Guide rod; 32. Sealing plate; 4. Protective sleeve; 41. Connecting ring; 42. Through hole; 43. Second positioning ring; 44. Pulling arc plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] Please see Figure 1-7 This utility model provides the following technical solution: A novel vitrification cryopreservation carrier rod includes an operating handle 1. The outer wall of the operating handle 1 is provided with a friction groove 14 to improve the holding stability of the operating handle 1. A glass tube 2 is inserted into the middle of the bottom surface of the operating handle 1 for loading embryos. The specific operation method can refer to the vitrification cryopreservation carrier rod in the prior art. An installation sleeve 11 is fixed to the bottom of the operating handle 1. The installation sleeve 11 is made of elastic material and can squeeze and position the glass tube 2. For details, please refer to the attached drawing. Figure 3 and attached Figure 5 One end of the glass tube 2 is inserted into the inner side of the mounting sleeve 11. The inner wall of the mounting sleeve 11 is provided with a first limiting groove 111. A first positioning ring 21 is fixed on the outer wall of one end of the glass tube 2. The first positioning ring 21 is located inside the first limiting groove 111 to improve the insertion stability of the glass tube 2. After loading the embryo into the inner side of the glass tube 2, the glass tube 2 is inserted into the bottom of the operating handle 1. Then the glass tube 2 is inserted into the liquid nitrogen for freezing.

[0026] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown, specifically, a guide frame 3 is fixed to the bottom edge of the operating handle 1. The guide frame 3 includes a guide rod 31 and a sealing plate 32. The guide rod 31 is fixed to the bottom surface of the operating handle 1. The length of the guide rod 31 is greater than the length of the glass tube 2, which facilitates loading the glass tube 2 to the bottom of the operating handle 1. At the same time, the guide rod 31 is spaced a certain distance from the glass tube 2 so as not to affect the freezing of the glass tube 2. A sealing plate 32 is fixed to one end of the guide rod 31. A protective sleeve 4 is movably sleeved on the outside of the operating handle 1, which can slide. A connecting ring 41 is fixed to the inner wall of one end of the protective sleeve 4. The side wall of the connecting ring 41 The upper part is provided with a through hole 42, through which a guide rod 31 passes to facilitate the movement of the protective sleeve 4; multiple guide rods 31 and through holes 42 are provided, with the guide rod 31 located on the outside of the glass tube 2; in this solution, the protective sleeve 4 is fitted onto the outside of the guide rod 31 and the operating handle 1. After the carrier rod is frozen, the operator moves the protective sleeve 4, which has been moved up to the outside of the operating handle 1, back down to reset it, so that it can be fitted onto the outside of the protective sleeve 4 for protection. There is no need to operate the protective sleeve 4 inside the liquid nitrogen, which is highly safe. At the same time, with the guidance of the operating handle 1 and the guide rod 31, there is no need to aim, which greatly improves the convenience of operation.

[0027] Example 2

[0028] In another embodiment of this solution, refer to Figure 5 and Figure 6 As shown, specifically, one end of the outer wall of the operating handle 1 is provided with a second limiting groove 12, and the other end of the outer wall of the operating handle 1 is provided with a third limiting groove 13. One end of the inner wall of the protective sleeve 4 is fixed with a second positioning ring 43, which is located inside the third limiting groove 13. When the protective sleeve 4 moves, the second positioning ring 43 engages with the second limiting groove 12 and the third limiting groove 13 respectively, thereby positioning the protective sleeve 4 in different positions. For example, when the protective sleeve 4 is moved upward, the second positioning ring 43 and the third limiting groove 13 engage, allowing the lower end of the protective sleeve 4 to move to the end of the guide rod 31, making room for the installation of the glass tube 2. By engaging and limiting, the protective sleeve 4 is prevented from sliding easily. When the protective sleeve 4 is moved downward, the second positioning ring 43 and the second limiting groove 12 engage, allowing the protective sleeve 4 to be stably fitted onto the outside of the guide rod 31 and the glass tube 2, thus achieving stable protection for the glass tube 2.

[0029] Reference Figure 4 As shown, specifically, a traction arc plate 44 is symmetrically fixed on the outer wall of one end of the protective sleeve 4. When the protective sleeve 4 is slid up and down, the operator can use tweezers to insert the traction arc plate 44 on both sides of the protective sleeve 4 to facilitate the sliding of the protective sleeve 4, while keeping the operator's hands away from the protective sleeve 4, further avoiding liquid nitrogen frostbite.

[0030] The working principle and usage process of this utility model are as follows: When freezing embryos, the operator loads the embryo into the inside of the glass tube 2, and then slides the protective sleeve 4 onto the guide rod 31 of the guide frame 3, so that most of the protective sleeve 4 moves to the outside of the operating handle 1. Then, the operator inserts the opening of the glass tube 2 into the bottom of the operating handle 1 through the gap of the guide rod 31 for positioning, so that the glass tube 2 is located between multiple guide rods 31. Then, one end of the glass tube 2 is inserted into liquid nitrogen for freezing. After freezing, the operator uses tweezers to hold the protective sleeve 4 and slides it down under the guidance of the operating handle 1 and the guide rod 31, so that it is re-attached to the guide rod 31. With the help of the sealing plate 32, the inner glass tube 2 is protected. The operation is convenient and does not require operation under liquid nitrogen, so it is highly safe.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel vitrified cryogenic support rod, comprising an operating handle (1), characterized in that: A glass tube (2) is inserted into the middle of the bottom surface of the operating handle (1). A guide frame (3) is fixed to the edge of the bottom surface of the operating handle (1). The guide frame (3) includes a guide rod (31) and a sealing plate (32). The guide rod (31) is fixed to the bottom surface of the operating handle (1). A sealing plate (32) is fixed to one end of the guide rod (31). A protective sleeve (4) is movably sleeved on the outside of the operating handle (1). A connecting ring (41) is fixed to the inner wall of one end of the protective sleeve (4). A through hole (42) is provided on the side wall of the connecting ring (41). The guide rod (31) passes through the through hole (42).

2. The novel vitrified cryogenic support rod according to claim 1, characterized in that: Multiple guide rods (31) and through holes (42) are provided, with the guide rods (31) located on the outside of the glass tube (2).

3. The novel vitrified cryogenic support rod according to claim 2, characterized in that: The operation handle (1) has a mounting sleeve (11) fixed at the bottom. The mounting sleeve (11) is made of elastic material. One end of the glass tube (2) is inserted into the inner side of the mounting sleeve (11). The inner wall of the mounting sleeve (11) is provided with a first limiting groove (111). One end of the outer wall of the glass tube (2) is fixed with a first positioning ring (21). The first positioning ring (21) is located inside the first limiting groove (111).

4. A novel vitrified cryogenic support rod according to claim 3, characterized in that: The outer wall of one end of the operating handle (1) is provided with a second limiting groove (12), and the outer wall of the other end of the operating handle (1) is provided with a third limiting groove (13). The inner wall of one end of the protective sleeve (4) is fixed with a second positioning ring (43), and the second positioning ring (43) is located inside the third limiting groove (13).

5. A novel vitrified cryogenic support rod according to claim 4, characterized in that: The operation involves providing friction grooves (14) on the outer wall of (1).

6. A novel vitrified cryogenic support rod according to claim 5, characterized in that: The length of the guide rod (31) is greater than the length of the glass tube (2).

7. A novel vitrified cryogenic support rod according to claim 6, characterized in that: One end of the protective sleeve (4) is symmetrically fixed with a tensioning arc plate (44).

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