A portable embryo transfer device

Abstract

This utility model belongs to the field of embryo transfer technology, specifically relating to a portable embryo transfer mechanism, including a Bartholin's pipette and a transfer tube. The Bartholin's pipette is located at the lower end of the transfer tube and communicates with it. The upper end of the transfer tube is provided with a guide tube communicating with it. A connecting mechanism is provided inside the guide tube, and a threaded rod is threadedly connected to it within the connecting mechanism. The lower end of the threaded rod extends into the transfer tube and is rotatably connected to a piston. The piston is slidably disposed within the transfer tube. This utility model uses a guide tube communicating with the upper end of the transfer tube and utilizes a connecting mechanism within the guide tube to stretch or press the threaded rod for rotation. Compared to rotating a knob to drive a one-way threaded rod, the stretching or pressing method is more convenient and labor-saving, improving work efficiency.

Description

Technical Field

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

[0002] Embryo transfer or embryo transfer refers to the technique of transferring an early embryo from a female animal, or an embryo obtained through in vitro fertilization or other methods, into another female animal of the same species and with the same physiological condition, so that it can continue to develop into a new individual. During the transfer process, a Bartholin's pipette is used to press the hollow sac and aspirate the embryo for transfer.

[0003] The patent, with publication number CN221578260U and titled "A Portable Embryo Transfer Device," discloses a transfer tube, a second piston, and a balance spring. The bottom of the transfer tube is fitted with a Pasteur straw, and two first mounting rings are horizontally mounted inside the Pasteur straw. The mounting groove has internal threads, and a one-way threaded rod is connected to the mounting groove via threads. These features allow the device to be sealed during embryo aspiration, preventing external bacterial contamination of the embryo.

[0004] However, the existing technical problem is that manually rotating the knob to drive the one-way threaded rod to rotate, and then using the connection between the threaded rod and the mounting groove to drive the first piston to slide upward, thereby causing a pressure change in the transfer tube, is relatively laborious and inefficient. Therefore, based on the above defects, the applicant has proposed a better technical solution to solve the above technical problems.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The present invention aims to solve the above-mentioned technical problems and provides a portable embryo transfer mechanism. It mainly solves the technical problem that the existing technology uses manual rotation of a knob to drive a one-way threaded rod to rotate, thereby using the connection between the threaded rod and the mounting groove to drive the first piston to slide upward, thus causing a pressure change in the transfer tube. This method is laborious and inefficient.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A portable embryo transfer device includes a Pasteur suction tube and a transfer tube, wherein the Pasteur suction tube is disposed at the lower end of the transfer tube and communicates with it.

[0009] The upper end of the transfer tube is provided with a guide tube communicating with it. The guide tube is provided with a connecting mechanism. The connecting mechanism is provided with a threaded rod that is threadedly connected to it. The lower end of the threaded rod extends into the transfer tube and is rotatably connected to the piston. The piston is slidably disposed in the transfer tube.

[0010] Preferably, the connecting mechanism includes two bearings and a threaded cylinder with internal threads.

[0011] The two bearings are spaced apart inside the guide tube, and the threaded cylinder is provided between the two bearings. The threaded rod is threadedly connected to the threaded cylinder.

[0012] Preferably, an end cap is rotatably connected to the upper end of the threaded rod, and guide rods are respectively provided on opposite sides of the end cap.

[0013] The guide tube 3 has vertical grooves on its opposite sides that are slidably connected to one of the guide rods. The upper end of each vertical groove has a horizontal groove perpendicular to it, and the horizontal grooves on the two vertical grooves face opposite directions.

[0014] Preferably, the piston sidewall is provided with a sliding plate, and the inner wall of the transfer tube is provided with a sliding groove that slides with the sliding plate.

[0015] Preferably, the Pasteur straw is detachably connected to the transfer tube.

[0016] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows:

[0017] This invention provides a portable embryo transfer mechanism with a simple structure and easy operation. It employs a guide tube connected to the upper end of the transfer tube, and a connecting mechanism within the guide tube to stretch or press and rotate the threaded rod. Compared to rotating a knob to drive the threaded rod in one direction, the stretching or pressing method is more convenient and labor-saving. Furthermore, the operator can continuously apply pressing or stretching force to the threaded rod, which is less sustainable and less jarring than manually rotating a knob. This allows for better control of pressure changes within the transfer tube, enabling better use of the Bartholin's suction tube to aspirate and transfer the embryo, thus improving work efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 Enlarged view of point A;

[0020] Figure 3 This is a schematic diagram of the vertical and horizontal grooves of this utility model.

[0021] The symbols of the main components in the diagram are explained below:

[0022] 1. Pasteur straw; 2. Transfer fitting; 21. Slide; 3. Guide fitting; 31. Vertical groove; 32. Horizontal groove; 4. Connecting mechanism; 41. Bearing; 42. Threaded cylinder; 5. Threaded rod; 6. Piston; 61. Sliding plate; 7. End cap; 8. Guide rod. 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

[0025] like Figures 1 to 3 As shown, a portable embryo transfer mechanism includes a Bartholin's suction tube 1 and a transfer tube 2. The Bartholin's suction tube 1 is located at the lower end of the transfer tube 2 and communicates with it. The upper end of the transfer tube 2 is provided with a guide tube 3 that communicates with it. A connecting mechanism 4 is provided inside the guide tube 3. A threaded rod 5 is threadedly connected to the connecting mechanism 4. The lower end of the threaded rod 5 extends into the transfer tube 2 and is rotatably connected to a piston 6. The piston 6 is slidably disposed inside the transfer tube 2.

[0026] This invention employs a guide tube 3 connected to the upper end of the transfer tube 2, and utilizes a connecting mechanism 4 within the guide tube 3 to stretch or press and rotate the threaded rod 5. Compared to rotating a knob to drive the threaded rod in one direction, the stretching or pressing method is more convenient and labor-saving. Furthermore, the operator can continuously apply pressing or stretching force to the threaded rod 5, which is less sustainable and less jarring than manually rotating a knob. This allows for better control of the pressure changes within the transfer tube 2, enabling better use of the Bartholin's suction tube 1 to aspirate and transfer the embryo, thus improving work efficiency.

[0027] In this embodiment, please refer to Figure 2 The connecting mechanism 4 includes two bearings 41 and a threaded cylinder 42 with internal threads. The two bearings 41 are spaced apart inside the guide tube 3, and the threaded cylinder 42 is provided between the two bearings 41. The threaded rod 5 is threadedly connected to the threaded cylinder 42. In specific operation, when it is necessary to aspirate and transfer the embryo through the Babbitt suction tube 1, a tensile force is applied to the threaded rod 5 and the piston 6 is driven to slide upward to control the pressure change inside the transfer tube. Then, a pressing force is applied to the threaded rod 5 to reset the piston 6.

[0028] In this embodiment, please refer to Figure 1 or Figure 3The upper end of the threaded rod 5 is rotatably connected to an end cap 7. The end cap 7 is provided with guide rods 8 on opposite sides. The side walls of the guide tube 3 on opposite sides are provided with vertical grooves 31 that are slidably connected to a guide rod 8. The upper end of the vertical groove 31 is provided with a horizontal groove 32 perpendicular to it. The horizontal grooves 32 on the two vertical grooves 31 face opposite directions. During operation, the guide rod 8 can be pressed or stretched to slide in the vertical groove 31 to drive the threaded rod 5 to rotate. The threaded rod 5 continues to rise and thus drives the piston 6 to move. When the Babbitt tube 1 aspirates and transfers the embryo to the transfer tube 2, the end cap 7 can be rotated at an angle to make the guide rod 8 lock in the horizontal groove 32 to limit the threaded rod 5. The overall operation is simple and convenient, simplifying the operation difficulty and improving the portability of the entire device.

[0029] In this embodiment, the piston 6 is provided with a sliding plate 61 on its side wall, and the inner wall of the transfer tube 2 is provided with a sliding groove 21 that slides with the sliding plate 61. The sliding plate 61 can slide with the sliding groove 21 to facilitate the sliding of the piston 6 in the transfer tube 2. On the other hand, it can limit the piston 6 to prevent the piston 6 from rotating during the pressing or stretching of the threaded rod 5, thus avoiding the risk of embryo transfer failure using this device.

[0030] Specifically, the Bartholin's pipette 1 and the transfer tube 2 are detachably connected, facilitating the installation and replacement of the Bartholin's pipette 1. Simultaneously, the Bartholin's pipette 1 may contain a closed device structure existing in the prior art, such as the closed device structure composed of a balance spring and other components in patent CN221578260U (patent number CN221578260U), which will not be elaborated upon here, to better complete the final embryo transfer operation.

[0031] The working principle of this utility model:

[0032] This utility model provides a portable embryo transfer mechanism. In specific operation, when it is necessary to transfer the embryo by the Barth pipette 1, the stretching guide rod 8 slides in the vertical groove 31 and drives the threaded rod 5 to rotate. The threaded rod 5 continues to rise and drives the piston 6 to move upward, which can control the pressure change in the transfer tube 2 to complete the transfer of the embryo into the transfer tube 2. At this time, the end cap 7 is rotated at an angle so that the guide rod 8 is locked in the horizontal groove 32 to limit the threaded rod 5.

[0033] Then press the guide rod 8, and as described above, the piston 6 moves down and controls the pressure change inside the transfer tube 2, causing the embryo in the transfer tube 2 to be transferred to other locations through the Bartholin's suction tube 1.

[0034] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A portable embryo transfer device, comprising a Bartholin's pipette (1) and a transfer tube (2), wherein the Bartholin's pipette (1) is disposed at the lower end of the transfer tube (2) and communicates therewith. Its features are, The upper end of the transfer tube (2) is provided with a guide tube (3) communicating with it. The guide tube (3) is provided with a connecting mechanism (4). The connecting mechanism (4) is provided with a threaded rod (5) threadedly connected to it. The lower end of the threaded rod (5) extends into the transfer tube (2) and is rotatably connected to the piston (6). The piston (6) slides inside the transfer tube (2).

2. The portable embryo transfer device as described in claim 1, characterized in that, The connecting mechanism (4) includes two bearings (41) and a threaded cylinder (42) with internal threads. Two bearings (41) are spaced apart inside the guide tube (3), and a threaded cylinder (42) is provided between the two bearings (41). The threaded rod (5) is threadedly connected to the threaded cylinder (42).

3. The portable embryo transfer device as described in claim 1, characterized in that, The upper end of the threaded rod (5) is rotatably connected to an end cap (7), and the end cap (7) is provided with guide rods (8) on opposite sides. The guide tube (3) 3 has vertical grooves (31) that are slidably connected to a guide rod (8) on its side walls on both sides. The upper end of the vertical groove (31) has a horizontal groove (32) that is perpendicular to it. The horizontal grooves (32) on the two vertical grooves (31) face opposite directions.

4. The portable embryo transfer device as described in claim 1, characterized in that, The piston (6) has a sliding plate (61) on its side wall, and the transfer tube (2) has a sliding groove (21) on its inner wall that slides with the sliding plate (61).

5. A portable embryo transfer device as described in claim 1, characterized in that, The Pasteur straw (1) is detached from the transfer tube (2).

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