Test tube baby sample transfer equipment

By combining a slide rail frame and an electric push rod with a stepper motor, the system achieves precise movement and clamping of samples in three-dimensional space. This solves the problems of complex structure and error-prone manual operation in existing equipment, improves the accuracy and safety of IVF sample transfer, and enhances the practicality of the equipment.

CN223892757UActive Publication Date: 2026-02-10REPRODUCTIVE HOSPITAL OF GUANGXI ZHUANG AUTONOMOUS REGION (REPRODUCTIVE HEALTH RES CENT OF GUANGXI ZHUANG AUTONOMOUS REGION)
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Patent Information

Application Number
CN202520371727.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-02-10
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

Existing IVF sample transfer equipment is complex in structure, inconvenient to operate, and expensive. Manual operation is easily affected by human factors, leading to decreased accuracy, low efficiency, and increased risk of contamination or damage. Sample loss or confusion during the transfer process reduces the chances of IVF sample loss or confusion, thus affecting the success rate of IVF.

Method used

The design employs a slide rail frame and a Y-axis slide rail, combined with an electric push rod and a stepper motor, to achieve precise movement and adjustment of the sample in the X, Y, and Z axes. The clamping ring uses an electromagnet and a semi-circular silicone pad for stable clamping, ensuring the accuracy and safety of the sample during the transfer process.

Benefits of technology

It improves the accuracy and efficiency of sample transfer, reduces errors and uncertainties in manual operation, lowers the risk of contamination and damage to samples during the transfer process, and increases the success rate of in vitro fertilization.

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Abstract

The utility model discloses test tube baby sample transfer equipment, which belongs to the technical field of medical auxiliary instruments and comprises a base plate, a slide rail frame arranged on the upper side of the base plate, a plurality of support columns fixedly connected between the base plate and the slide rail frame, a Y-axis slide rail slidably mounted at the upper end of the slide rail frame, and a lifting component slidably mounted at the lower end of the Y-axis slide rail. The lifting assembly comprises an electric push rod, a fixing plate is fixedly installed at the lower end of the electric push rod, a clamping ring is rotatably installed at the front end of the fixing plate, and an ovum peeling device is inserted into the clamping ring, through the design of a sliding rail frame and a Y-axis sliding rail, accurate movement of a sample in the X-axis direction and the Y-axis direction is achieved, and meanwhile the electric push rod and a stepping motor are used in cooperation, so that the accuracy of ovum peeling is improved. According to the sample transfer device, accurate adjustment and angle adjustment of a sample in the Z-axis direction can be achieved, through accurate movement and adjustment in the three-dimensional space, the accuracy and efficiency of sample transfer are greatly improved, and errors and uncertainty in manual operation are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, and more specifically, to a sample transfer device for in vitro fertilization. Background Technology

[0002] In assisted reproductive technology, in vitro fertilization (IVF) is a crucial medical procedure that offers the possibility of parenthood to couples who have difficulty conceiving naturally. IVF involves multiple complex steps, among which sample transfer is a critical and delicate one. Sample transfer typically includes steps such as oocyte retrieval, processing, and implantation; the accuracy and efficiency of these steps directly affect the success rate of IVF.

[0003] Traditional IVF sample transfer relies primarily on manual operation by medical staff. However, manual operation presents several limitations and challenges. First, it is susceptible to human factors such as the operator's experience, fatigue, and distraction, all of which can lead to decreased accuracy in sample transfer. Second, manual operation requires a longer time to complete, increasing the risk of sample contamination or damage during processing. Furthermore, manual operation can also lead to sample loss or confusion during transfer, further reducing the success rate of IVF.

[0004] To overcome these limitations and improve the accuracy and efficiency of in vitro fertilization (IVF) sample transfer, researchers have begun exploring the use of automated equipment. Automated equipment can achieve precise sample transfer through precise robotic arms and control systems, thus avoiding the errors and uncertainties inherent in manual operation. However, most existing IVF sample transfer devices suffer from complex structures, inconvenient operation, and high costs, limiting their widespread application in clinical practice. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide an in vitro fertilization sample transfer device. This solution can achieve precise movement of the sample in the X and Y axes by adopting a slide rail frame and a Y-axis slide rail design. At the same time, the combined use of an electric push rod and a stepper motor can achieve precise adjustment and angle adjustment of the sample in the Z axis direction. This precise movement and adjustment in three-dimensional space greatly improves the accuracy and efficiency of sample transfer and reduces the errors and uncertainties in manual operation.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A sample transfer device for in vitro fertilization includes a base plate. Multiple evenly distributed slots are formed on the upper side of one side of the base plate, and matching sample tubes are inserted into the slots. A U-shaped groove is formed on the other side of the base plate. A slide rail frame is provided on the upper side of the base plate. Multiple support columns are fixedly connected between the base plate and the slide rail frame. A Y-axis slide rail is slidably mounted on the upper end of the slide rail frame. A lifting assembly is slidably mounted on the lower end of the Y-axis slide rail. The lifting assembly includes an electric push rod. A fixing plate is fixedly mounted on the lower end of the electric push rod. A clamping ring is rotatably mounted on the front end of the fixing plate, and an oocyte stripper is inserted into the clamping ring.

[0010] Furthermore, a stepper motor is fixedly installed at the rear end of the fixing plate, and the output end of the stepper motor is fixedly connected to the clamping ring. The stepper motor drives the clamping ring to rotate, thereby tilting it to a suitable angle to facilitate the transfer of samples.

[0011] Furthermore, the clamping ring includes a hinge, with a pair of symmetrically distributed clamping half-rings hinged to the front end of the hinge. A rotating shaft is fixedly connected between the hinge and the output end of the stepper motor. Electromagnets are embedded in the clamping half-rings. The magnetic attraction between the electromagnets allows the pair of clamping half-rings to stably merge and clamp the egg stripper, ensuring that it is not easy to deviate during the transfer process.

[0012] Furthermore, a semi-ring silicone pad is fixedly connected to the inner end of the clamping semi-ring, and the inner diameter of the semi-ring silicone pad is smaller than the outer diameter of the egg stripper. The semi-ring silicone pad can increase the clamping effect on the egg stripper and at the same time protect it from serious pressure damage.

[0013] Furthermore, the slide rail frame includes a pair of X-axis slide grooves formed on its upper surface. A pair of X-axis motors are fixedly mounted on the slide rail frame. The output end of the X-axis motors is fixedly connected to an X-axis ball screw extending into the X-axis slide groove. A matching X-axis ball screw nut is threaded onto the X-axis ball screw, and the X-axis ball screw nut is fixedly connected to the Y-axis slide rail. The X-axis motors drive the X-axis ball screws to rotate, thereby forcing the X-axis ball screw nut to drive the Y-axis slide rail to move in the X-axis direction.

[0014] Furthermore, the Y-axis slide rail includes a slide rail body, on which a Y-axis motor is fixedly mounted. The output end of the Y-axis motor is fixedly connected to a Y-axis ball screw, and a matching Y-axis ball screw nut is threaded onto the Y-axis ball screw. The Y-axis ball screw nut is fixedly connected to an electric push rod. The Y-axis motor drives the Y-axis ball screw to rotate, thereby forcing the Y-axis ball screw nut to move the lifting assembly in the Y-axis direction.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This scheme achieves precise movement of the sample in the X and Y axes by adopting the design of the slide rail frame and Y-axis slide rail. At the same time, the use of electric push rod and stepper motor can achieve precise adjustment and angle adjustment of the sample in the Z axis. This precise movement and adjustment in three-dimensional space greatly improves the accuracy and efficiency of sample transfer and reduces the error and uncertainty in manual operation.

[0018] (2) The clamping ring of this scheme adopts the design of electromagnet and semi-circular silicone pad, which can achieve stable clamping and protection of the oocyte stripper. The magnetic attraction between the electromagnets enables the clamping ring to firmly clamp the oocyte stripper, avoiding the phenomenon of displacement or falling off during the transfer process. The semi-circular silicone pad can increase the clamping effect on the oocyte stripper and reduce the pressure damage caused to it, effectively reducing the risk of sample contamination or damage during the transfer process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the Y-axis moving component in this utility model;

[0021] Figure 3 This is a schematic diagram of the clamping component in this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1. Base plate, 2. Slide rail frame, 201. X-axis slide groove, 202. X-axis motor, 203. X-axis ball screw, 204. X-axis screw nut, 3. Support column, 4. Y-axis slide rail, 401. Slide rail body, 402. Y-axis motor, 403. Y-axis ball screw, 404. Y-axis screw nut, 5. Printing tube, 6. U-shaped groove, 7. Electric push rod, 8. Fixing plate, 9. Clamping ring, 901. Hinge, 902. Rotating shaft, 903. Clamping half ring, 904. Half ring silicone pad, 905. Electromagnet, 10. Stepper motor, 11. Egg stripper. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example:

[0028] Please see Figure 1-3 A sample transfer device for in vitro fertilization includes a base plate 1. Multiple evenly distributed slots are provided on the upper side of one side of the base plate 1, and matching impression tubes 5 are inserted into the slots. A U-shaped groove 6 is provided on the other side of the base plate 1. A slide rail frame 2 is provided on the upper side of the base plate 1. Multiple support columns 3 are fixedly connected between the base plate 1 and the slide rail frame 2. A Y-axis slide rail 4 is slidably mounted on the upper end of the slide rail frame 2. A lifting assembly is slidably mounted on the lower end of the Y-axis slide rail 4. The lifting assembly includes an electric push rod 7. A fixing plate 8 is fixedly mounted on the lower end of the electric push rod 7. A clamping ring 9 is rotatably mounted on the front end of the fixing plate 8, and an oocyte stripper 11 is inserted into the clamping ring 9.

[0029] A stepper motor 10 is fixedly installed at the rear end of the fixing plate 8. The output end of the stepper motor 10 is fixedly connected to the clamping ring 9. The stepper motor 10 drives the clamping ring 9 to rotate and tilt to a suitable angle, which facilitates the transfer of samples.

[0030] The clamping ring 9 includes a hinge 901, with a pair of symmetrically distributed clamping half-rings 903 hinged to the front end of the hinge 901. A rotating shaft 902 is fixedly connected between the hinge 901 and the output end of the stepper motor 10. An electromagnet 905 is embedded in the clamping half-rings 903. Through the magnetic attraction between the electromagnets 905, the pair of clamping half-rings 903 can be stably combined to clamp the egg stripper 11, ensuring that it is not easy to deviate during the transfer process.

[0031] A semi-ring silicone pad 904 is fixedly connected to the inner end of the clamping semi-ring 903. The inner diameter of the semi-ring silicone pad 904 is smaller than the outer diameter of the egg stripper 11. The semi-ring silicone pad 904 can increase the clamping effect on the egg stripper 11 and at the same time protect it from serious pressure damage.

[0032] The slide rail 2 includes a pair of X-axis slide grooves 201 formed on its upper surface. A pair of X-axis motors 202 are fixedly installed on the slide rail 2. The output end of the X-axis motors 202 is fixedly connected to an X-axis ball screw 203 extending into the X-axis slide groove 201. A matching X-axis ball screw nut 204 is threaded onto the X-axis ball screw 203. The X-axis ball screw nut 204 is fixedly connected to the Y-axis slide rail 4. The X-axis motors 202 drive the X-axis ball screw 203 to rotate, thereby forcing the X-axis ball screw nut 204 to drive the Y-axis slide rail 4 to move in the X-axis direction.

[0033] The Y-axis slide rail 4 includes a slide rail body 401, on which a Y-axis motor 402 is fixedly mounted. The output end of the Y-axis motor 402 is fixedly connected to a Y-axis ball screw 403. A matching Y-axis ball screw nut 404 is threaded onto the Y-axis ball screw 403, and the Y-axis ball screw nut 404 is fixedly connected to the electric push rod 7. The Y-axis motor 402 drives the Y-axis ball screw 403 to rotate, thereby forcing the Y-axis ball screw nut 404 to drive the lifting assembly to move in the Y-axis direction.

[0034] When in use, it can be used in conjunction with a microscope. Align the U-shaped groove 6 with the sample area, and then align it in the X and Y axes respectively using the slide rail 2 and Y-axis slide rail 4. After alignment, adjust the height using the electric push rod 7 and adjust the angle using the stepper motor 10 to remove the eggs. After successful removal, move the sample in the above manner to transfer it into the imprint tube 5 for preservation. Compared with the manual transfer in the prior art, the automatic sample transfer method is not only more efficient, but also avoids manual deviation and possible contamination.

[0035] It is worth noting that the electrical components on this equipment, such as the X-axis motor, Y-axis motor, electric actuator, and stepper motor, can all be manually controlled by medical personnel through the controller, or they can be integrated into a more advanced automation system for fully automatic transfer. Regardless of the control method, they are all existing technologies in this field and will not be described in detail here.

[0036] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A sample transfer device for in vitro fertilization, comprising a substrate (1), characterized in that: The substrate (1) has multiple evenly distributed slots on one side of its upper end, and a matching printing tube (5) is inserted into the slot. The substrate (1) has a U-shaped groove (6) on the other side. A slide rail frame (2) is provided on the upper side of the substrate (1). Multiple support columns (3) are fixedly connected between the substrate (1) and the slide rail frame (2). A Y-axis slide rail (4) is slidably installed on the upper end of the slide rail frame (2). A lifting assembly is slidably installed on the lower end of the Y-axis slide rail (4). The lifting assembly includes an electric push rod (7). A fixing plate (8) is fixedly installed on the lower end of the electric push rod (7). A clamping ring (9) is rotatably installed on the front end of the fixing plate (8). An egg stripper (11) is inserted into the clamping ring (9).

2. The in vitro fertilization sample transfer device according to claim 1, characterized in that: The stepper motor (10) is fixedly installed at the rear end of the fixed plate (8), and the output end of the stepper motor (10) is fixedly connected to the clamping ring (9).

3. The in vitro fertilization sample transfer device according to claim 2, characterized in that: The clamping ring (9) includes a hinge (901), and a pair of symmetrically distributed clamping half rings (903) are hinged to the front end of the hinge (901). A rotating shaft (902) is fixedly connected between the hinge (901) and the output end of the stepper motor (10). An electromagnet (905) is embedded in the clamping half ring (903).

4. The in vitro fertilization sample transfer device according to claim 3, characterized in that: The inner end of the clamping half-ring (903) is fixedly connected to a half-ring silicone pad (904), and the inner diameter of the half-ring silicone pad (904) is smaller than the outer diameter of the egg stripper (11).

5. The in vitro fertilization sample transfer device according to claim 1, characterized in that: The slide rail frame (2) includes a pair of X-axis slide grooves (201) opened on the upper surface. A pair of X-axis motors (202) are fixedly installed on the slide rail frame (2). The output end of the X-axis motor (202) is fixedly connected to an X-axis ball screw (203) extending into the X-axis slide groove (201). A matching X-axis screw nut (204) is threaded on the X-axis ball screw (203), and the X-axis screw nut (204) is fixedly connected to the Y-axis slide rail (4).

6. The in vitro fertilization sample transfer device according to claim 1, characterized in that: The Y-axis slide rail (4) includes a slide rail body (401), on which a Y-axis motor (402) is fixedly installed. The output end of the Y-axis motor (402) is fixedly connected to a Y-axis ball screw (403). A matching Y-axis screw nut (404) is threaded onto the Y-axis ball screw (403), and the Y-axis screw nut (404) is fixedly connected to the electric push rod (7).