A portable embryo transfer device

Abstract

The utility model relates to a portable embryo transfer device, aims at solving the technical problem that the current embryo transfer device is used in the process, through Pasteur pipette to hollow capsule is pressed, embryo is extracted and is transferred, and the precision of the staff is not good at the squeezing degree of the empty capsule, and it is often possible to be too violent and the cell tissue and liquid are sucked into the pipe body together, thereby influence the final sampling result, including the pipe body, its characterized in that, both ends of the pipe body are open setting, the pipe body is transparent pipe, one end of the pipe body is connected with the pipe head, the pipe body is connected with the elastic empty capsule away from the pipe head one end, the inner chamber sliding connection of pipe body has the piston, the fixed disc is fixedly installed in the pipe body above the piston, and the fixed disc is connected with the spring between the piston, the utility model has the accurate control elastic empty capsule squeezing degree, and then avoids the cell tissue and liquid to be sucked into the pipe body together and influence the final sampling result.

Description

Technical Field

[0001] This utility model relates to the field of animal embryo transfer, specifically a portable embryo transfer device. Background Technology

[0002] Embryo transfer is a technique that involves transferring a fertilized egg or an embryo that has developed for several days from a donor to a recipient of the same species, allowing it to continue developing. It is also called fertilized egg transfer or egg transfer, and is commonly known as artificial insemination or surrogacy. Offspring produced through embryo transfer receive nutrition from the recipient and develop into new individuals, but their genetic material comes from their true parents, namely the donor animal and the male animal with which they mate.

[0003] During the use of embryo transfer devices, the hollow sac is pressed using a Pasteur suction tube to aspirate and transfer the embryo. However, if the operator does not have a precise control over the pressure applied to the sac, they may use excessive force, drawing in cells, tissues, and fluids into the tube, thus affecting the final sampling results. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide a portable embryo transfer device to solve the technical problem that when using current embryo transfer devices, the embryo is sucked up and transferred by pressing the hollow sac with a Babbitt cannula, but the operator may not be able to control the precision of the squeezing force of the hollow sac, and may often use too much force to suck cells, tissues and fluids into the cannula, thus affecting the final sampling results.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a portable embryo transfer device is designed, including a tube body, both ends of which are open. The tube body is a transparent tube, one end of which is connected to a tube head, and the end of the tube body away from the tube head is connected to an elastic bladder. A piston is slidably connected to the inner cavity of the tube body. A fixing plate is fixedly installed inside the tube body above the piston. A spring is connected between the fixing plate and the piston. Arc-shaped through holes are opened on both sides of the surface of the fixing plate, and the two arc-shaped through holes are symmetrically distributed. Scale lines are engraved on the outer side of the tube body. The starting value of the scale lines corresponds to the piston, and the values ​​of the scale lines increase from top to bottom.

[0006] Preferably, a telescopic limiting mechanism is provided between the fixed disc and the piston, and the spring is sleeved on the outside of the telescopic limiting mechanism.

[0007] Preferably, the telescopic limiting mechanism includes a connecting cylinder and a connecting rod, the connecting cylinder being connected to the piston, the connecting rod being connected to the fixed plate, and the connecting cylinder being movably sleeved on the outside of the connecting rod.

[0008] Preferably, rectangular holes are provided on both sides of the connecting cylinder, both rectangular holes are in communication with the inner cavity of the connecting cylinder, and limit rods are slidably connected in both rectangular holes, and both limit rods are connected to the connecting rod inside the connecting cylinder.

[0009] Preferably, the tension of the spring after stretching is greater than the frictional force of the piston inside the tube.

[0010] Preferably, the shortest length of the connection between the connecting cylinder and the connecting rod is the same as the natural length of the spring.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model combines a tube body, tube head, piston, fixed plate, arc-shaped through hole, elastic bladder, and spring. By holding the tube body and squeezing the elastic bladder, the air inside the elastic bladder is compressed and pushes the piston through the arc-shaped through hole. The distance the piston moves is observed according to the scale lines to determine the volume of air squeezed out of the tube body by the piston. Then, the elastic bladder is released, and atmospheric pressure and the spring pull pull the piston back to its original position. This ensures that the amount of air drawn into the tube body is the same as the amount of air expelled by the piston. This allows for precise control of the squeezing force of the elastic bladder, thus avoiding the intake of cells, tissues, and fluids into the tube body, which would affect the final sampling results.

[0013] 2. This utility model combines a connecting cylinder, a connecting rod, a rectangular hole, and a limiting rod. The limiting rod guides the movement of the connecting rod within the rectangular hole, thereby guiding the movement of the connecting rod within the connecting cylinder. This improves the stability of the piston's movement within the tube, thus enhancing the stability of embryo aspiration and further improving the accuracy of embryo aspiration. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the tube body of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the telescopic limiting mechanism, the fixed rod, and the piston of this utility model;

[0017] Figure 4 This is a schematic diagram of the telescopic limiting mechanism of this utility model.

[0018] In the diagram: 1. Tube body; 11. Tube head; 12. Scale line; 13. Elastic bladder; 2. Piston; 21. Fixed plate; 22. Arc-shaped through hole; 23. Spring; 3. Telescopic limiting mechanism; 31. Connecting cylinder; 32. Connecting rod; 33. Rectangular hole; 34. Limiting rod. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Example 1: A portable embryo transfer device, see [link to example]. Figures 1 to 4 The device includes a tube body 1, which is open at both ends and is transparent. One end of the tube body 1 is connected to a tube head 11, and the other end of the tube body 1 away from the tube head 11 is connected to an elastic bladder 13. A piston 2 is slidably connected to the inner cavity of the tube body 1. A fixing plate 21 is fixedly installed inside the tube body 1 above the piston 2. A spring 23 connects the fixing plate 21 and the piston 2. Arc-shaped through holes 22 are opened on both sides of the surface of the fixing plate 21, and the two arc-shaped through holes 22 are symmetrically distributed. Scale lines 12 are engraved on the outer side of the tube body 1. The starting value of the scale lines 12 corresponds to that of the piston 2, and the scale lines 12... The values ​​increase from top to bottom. During operation, the tube body 1 is held by hand, and the elastic bladder 13 is squeezed. The air inside the elastic bladder 13 is compressed and pushes the piston 2 through the arc-shaped through hole 22. The distance the piston 2 moves is observed according to the scale line 12 to determine the volume of air squeezed out of the tube body 1 by the piston 2. Then, the elastic bladder 13 is released, and the piston 2 is pulled back to its original position by atmospheric pressure and the tension of the spring 23. This results in the same amount of air being drawn into the tube body 1 as the amount of air expelled by the piston 2. This allows for precise control of the squeezing force of the elastic bladder 13, thus avoiding the intake of cells, tissues and fluids into the tube body 1, which would affect the final sampling results.

[0021] For details, see Figure 3 and Figure 4 A telescopic limiting mechanism 3 is provided between the fixed plate 21 and the piston 2. The spring 23 is sleeved on the outside of the telescopic limiting mechanism 3. The telescopic limiting mechanism 3 includes a connecting cylinder 31 and a connecting rod 32. The connecting cylinder 31 is connected to the piston 2, and the connecting rod 32 is connected to the fixed plate 21. The connecting cylinder 31 is movably sleeved on the outside of the connecting rod 32. Rectangular holes 33 are provided on both sides of the connecting cylinder 31. Both rectangular holes 33 are connected to the inner cavity of the connecting cylinder 31. Limiting rods 34 are slidably connected in both rectangular holes 33, and both limiting rods 34 are connected to the connecting rod 32 in the connecting cylinder 31. The limiting rods 34 guide the movement of the connecting rod 32 in the connecting cylinder 31 by moving within the rectangular holes 33, thereby improving the stability of the piston 2 moving within the tube 1, thus improving the stability of embryo aspiration and further improving the accuracy of embryo aspiration.

[0022] Further, see Figure 2The tension of the spring 23 after stretching is greater than the frictional force of the piston 2 inside the tube 1, which is used to ensure that the tension of the spring 23 after stretching can pull the piston 2 to reset.

[0023] It is worth noting that, see Figure 3 and Figure 4 The shortest length of the connection between the connecting cylinder 31 and the connecting rod 32 is the same as the natural length of the spring 23, which is used to ensure that the piston 2 for reset corresponds to the starting value of the scale line 12.

[0024] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0025] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A portable embryo transfer device, comprising a tube (1), characterized in that, Both ends of the tube (1) are open. The tube (1) is a transparent tube. One end of the tube (1) is connected to a tube head (11). The end of the tube (1) away from the tube head (11) is connected to an elastic bladder (13). A piston (2) is slidably connected to the inner cavity of the tube (1). A fixed plate (21) is fixedly installed in the tube (1) above the piston (2). A spring (23) is connected between the fixed plate (21) and the piston (2). Arc-shaped through holes (22) are opened on both sides of the surface of the fixed plate (21), and the two arc-shaped through holes (22) are symmetrically distributed. A scale line (12) is engraved on the outer side of the tube (1). The starting value of the scale line (12) corresponds to the piston (2), and the value of the scale line (12) increases from top to bottom.

2. The portable embryo transfer device as described in claim 1, characterized in that, A telescopic limiting mechanism (3) is provided between the fixed plate (21) and the piston (2), and the spring (23) is sleeved on the outside of the telescopic limiting mechanism (3).

3. The portable embryo transfer device as described in claim 2, characterized in that, The telescopic limiting mechanism (3) includes a connecting cylinder (31) and a connecting rod (32). The connecting cylinder (31) is connected to the piston (2), and the connecting rod (32) is connected to the fixed plate (21). The connecting cylinder (31) is movably sleeved on the outside of the connecting rod (32).

4. The portable embryo transfer device as described in claim 3, characterized in that, The connecting cylinder (31) has rectangular holes (33) on both sides. Both rectangular holes (33) are connected to the inner cavity of the connecting cylinder (31). Both rectangular holes (33) are slidably connected to limit rods (34), and both limit rods (34) are connected to the connecting rods (32) inside the connecting cylinder (31).

5. A portable embryo transfer device as described in claim 1, characterized in that, The tension of the spring (23) after stretching is greater than the frictional force of the piston (2) inside the tube (1).

6. A portable embryo transfer device as described in claim 3, characterized in that, The shortest length of the connection between the connecting cylinder (31) and the connecting rod (32) is the same as the natural length of the spring (23).

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