Egg stripping needle for assisted reproduction
By combining the mounting base, lead screw drive assembly, and clamping arc block, the problem of unstable operation of the egg stripping needle is solved, and stable clamping and angle adjustment of the egg stripping needle are achieved, thus improving the stability and accuracy of the operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGYUN MEDICAL TECH (SHANGHAI CO LTD
- Filing Date
- 2025-04-07
- Publication Date
- 2026-05-19
AI Technical Summary
In the current oocyte stripping process, the operation of the oocyte stripping needle is easily affected by operator fatigue and hand tremors, resulting in unstable operation.
The device employs a combination structure consisting of a mounting base, a lead screw drive assembly, and two clamping arc blocks. The lead screw drive assembly drives the support base to perform vertical linear motion, which, in conjunction with the limiting assembly and the spring body, enables stable clamping and angle adjustment of the egg-peeling needle.
To ensure the stability of the egg stripping needle, the height and angle after clamping can be adjusted as needed, reducing the instability caused by operator fatigue.
Smart Images
Figure CN224258593U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of assisted reproductive technology, and in particular to an egg-removing needle for assisted reproduction. Background Technology
[0002] Granulosa cells are granulosa cells in the ovary that surround the oocyte. They contain abundant granules and secrete sex hormones such as estrogen, providing nutrition and support to the oocyte. Before performing intracytoplasmic sperm injection (ICSI) in the embryology laboratory, granulosa cells on the surface of the oocyte are removed using hyaluronidase and an oocyte stripping needle.
[0003] The existing egg stripping process mostly relies on the operator's experience to operate the egg stripping needle by hand. Hand operation is easily affected by factors such as operator fatigue and hand tremors, resulting in unstable operation. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an egg-removing needle for assisted reproduction.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An oocyte stripping needle for assisted reproduction includes an oocyte stripping needle body and a mounting base. The mounting base is provided with a screw drive assembly, and a support seat is provided on one side of the mounting base through the screw drive assembly. A cavity is opened on one side of the support seat. A fixed seat is fixedly installed on the top of the support seat on one side of the cavity, and a movable seat is slidably provided on the top of the support seat on the other side of the cavity. The fixed seat and the movable seat are both connected to a fixed shaft on the side of the cavity through a bearing assembly.
[0007] The fixed seat has a clamping arc block one installed on one side of the fixed shaft, and the movable seat has a clamping arc block two installed on one side of the fixed shaft. Multiple limiting components are symmetrically arranged at equal distances on both ends of the clamping surface side of the clamping arc block one, and the clamping arc block one and the clamping arc block two are limited by the limiting components.
[0008] Furthermore, in a preferred configuration, the limiting component includes a fixed insert rod, a limiting member is sleeved on one side of the outer wall of the fixed insert rod, and a movable groove is formed on the outer wall of the fixed insert rod at the limiting member, the length of the movable groove being twice the length of the limiting member.
[0009] In addition, a preferred structure is that an auxiliary protrusion is provided on the side of the outer wall of the movable groove away from the clamping arc block, and the length of the auxiliary protrusion is the same as the length of the limiting member, and the auxiliary protrusion is parallel to the bottom of the clamping arc block.
[0010] In addition, a preferred structure is that the outer diameter of the limiting member is the same as the outer diameter of the fixed insertion rod, and a T-shaped counterweight is fixedly installed at the bottom of the limiting member, and a limiting slot is opened on the side of the limiting member near the T-shaped counterweight at the auxiliary protrusion.
[0011] In addition, the preferred structure is that the clamping arc block two has a through hole at the fixed insertion rod, and the clamping arc block two has an auxiliary sliding groove at the T-shaped counterweight block, and the auxiliary sliding groove and the auxiliary protrusion are in a parallel state.
[0012] In addition, a preferred structure is that a slider is fixedly installed at the bottom of the movable seat, the slider is limited and slidably disposed in the support seat, a groove is opened in the support seat at the slider, and multiple spring bodies are installed at equal distances in the groove on the side away from the fixed seat. A limit counterweight is inserted into the top of the support seat at the groove and on the side of the slider.
[0013] The beneficial effects of this utility model are as follows:
[0014] In this invention, the egg-removing needle can be clamped by the mounting base, the lead screw drive assembly, and the clamping arc block one and clamping arc block two. This ensures the stability of the egg-removing needle and allows for adjustment of the height and angle of the clamped needle as needed. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of an oocyte stripping needle for assisted reproduction proposed in this utility model;
[0016] Figure 2 This is a schematic diagram showing the disassembled structure of an egg-removing needle for assisted reproduction proposed in this utility model;
[0017] Figure 3 A schematic diagram of the structure of clamping arc block one, clamping arc block two, support base, and movable base;
[0018] Figure 4 for Figure 3 Enlarged structural diagram at point A;
[0019] Figure 5 for Figure 3 Enlarged structural diagram at point B.
[0020] In the diagram: 1. Mounting base; 2. Lead screw drive assembly; 3. Support base; 4. Fixed base; 5. Movable base; 61. Clamping arc block one; 611. Inlet / outlet slide groove; 62. Clamping arc block two; 7. Egg stripping needle body; 8. Spring body; 9. Limiting counterweight block; 10. Limiting assembly; 101. Fixed insertion rod; 102. Movable groove; 103. Auxiliary protrusion; 104. Limiting component; 105. T-shaped counterweight block. Detailed Implementation
[0021] 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.
[0022] Reference Figure 1-5 An oocyte stripping needle for assisted reproduction includes an oocyte stripping needle body 7 and a mounting base 1. The mounting base 1 is provided with a screw drive assembly 2, and a support base 3 is provided on one side of the mounting base 1 through the screw drive assembly 2. A cavity is opened on one side of the support base 3. A fixed base 4 is fixedly installed on the top of the support base 3 on one side of the cavity. A movable base 5 is slidably provided on the top of the support base 3 on the other side of the cavity. The fixed base 4 and the movable base 5 are both connected to a fixed shaft on the side of the cavity through a bearing assembly.
[0023] It is worth noting that the specific structure and working principle of the egg-peeling needle body 7 are existing technologies that are already publicly available on the market, and are not part of the main technical problems to be solved in this utility model. Therefore, this utility model will not elaborate on them further.
[0024] Meanwhile, the lead screw drive assembly 2 is vertically arranged, and the support base 3 is driven to perform vertical linear motion through the lead screw drive assembly 2. The specific structure, connection method and working principle of the lead screw drive assembly are all existing technologies that are currently publicly available on the market, and are not the main technical problems to be solved in this utility model. Therefore, this utility model will not elaborate on them.
[0025] Meanwhile, a clamping arc block 61 is installed on one side of the fixed shaft of the fixed seat 4, and a clamping arc block 62 is installed on one side of the fixed shaft of the movable seat 5. Multiple limiting components 10 are symmetrically arranged at equal distances on both ends of the clamping surface side of the clamping arc block 61, and the clamping arc block 61 and the clamping arc block 62 are limited by the limiting components 10.
[0026] Both clamping arc block 61 and clamping arc block 62 have rubber pads on their clamping surfaces. The rubber material has good anti-slip properties. When clamping the egg-removing needle, the rubber pads can increase the friction between the needle and the needle, thereby ensuring that the needle is stably clamped and not easily falls off or shifts.
[0027] Meanwhile, the limiting component 10 includes a fixed insert rod 101, a limiting member 104 is sleeved on one side of the outer wall of the fixed insert rod 101, and a movable groove 102 is opened on the outer wall of the fixed insert rod 101 at the limiting member 104. The length of the movable groove 102 is twice the length of the limiting member 104.
[0028] Furthermore, an auxiliary protrusion 103 is provided on the outer wall of the movable groove 102 away from the clamping arc block 61, and the length of the auxiliary protrusion 103 is the same as the length of the limiting member 104. The auxiliary protrusion 103 is parallel to the bottom of the clamping arc block 61.
[0029] Furthermore, the outer diameter of the limiting member 104 is consistent with the outer diameter of the fixed insertion rod 101, and a T-shaped counterweight 105 is fixedly installed at the bottom of the limiting member 104. A limiting slot is provided on the side of the limiting member 104 near the T-shaped counterweight 105 at the auxiliary protrusion 103.
[0030] When the T-shaped counterweight 105 and the auxiliary protrusion 103 are in a parallel state, its limiting slot is aligned with its auxiliary protrusion 103. When the limiting member 104 is inserted into the auxiliary protrusion 103, its T-shaped counterweight 105 is aligned with its auxiliary sliding groove. When the limiting member 104 is not inserted into the auxiliary protrusion 103, one side of the limiting member 104 is in contact with the inner wall of the clamping arc block 62.
[0031] Furthermore, a through hole is provided in the clamping arc block 62 at the fixed insertion rod 101, and an auxiliary sliding groove is provided in the clamping arc block 62 at the T-shaped counterweight block 105, and the auxiliary sliding groove is parallel to the auxiliary protrusion 103.
[0032] Meanwhile, a slider is fixedly installed at the bottom of the movable seat 5. The slider is limited and slidably set in the support seat 3. A groove is opened in the support seat 3 at the slider. Multiple spring bodies 8 are installed at equal distances in the groove on the side away from the fixed seat 4. A limit counterweight 9 is inserted into the top of the support seat 3 at the groove and on the side of the slider.
[0033] In this embodiment, the egg-peeling needle to be clamped is placed in the cavity along the cavity, and one side is made to fit with the clamping surface of the clamping arc block 62. Then, the movable seat is moved toward the egg-peeling needle and fits with it. Then, the limiting counterweight block 9 is inserted into the slide groove, thereby initially limiting the movable seat and the clamping arc block 61.
[0034] When the movable seat moves toward and fits the egg-peeling needle, one side of its limiting component 10 is inserted into the clamping arc block 2 62, and its limiting member 104 passes through the through hole of the clamping arc block 2 62. Then the limiting member 104 is moved toward the clamping arc block 1 61 and rotated until the limiting member 104 is rotated to an intersecting state with the auxiliary protrusion 103.
[0035] When it is necessary to disassemble the egg-peeling needle, the limiting member 104 is rotated and the limiting slot is aligned with its auxiliary protrusion 103 and inserted. Then the limiting counterweight 9 is removed, and the movable seat 5 and the clamping arc block are moved away from the clamping arc block 62. Then the egg-peeling needle can be removed.
[0036] By using the mounting base 1, the lead screw drive assembly 2, and the clamping arc block one 61 and clamping arc block two 62, the egg-removing needle can be clamped while its height and angle can be adjusted as needed.
[0037] In this utility model, the egg-removing needle can be clamped by the mounting base 1, the lead screw drive assembly 2 and the clamping arc block 61 and clamping arc block 62, ensuring the stability of the egg-removing needle, and the height and angle of the clamped egg-removing needle can be adjusted according to the needs.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An oocyte stripping needle for assisted reproduction, comprising an oocyte stripping needle body (7) and a mounting base (1), characterized in that, The mounting base (1) is provided with a screw drive assembly (2), and a support base (3) is provided on one side of the mounting base (1) through the screw drive assembly (2). A cavity is opened on one side of the support base (3). A fixed seat (4) is fixedly installed on the top of the support base (3) on one side of the cavity. A movable seat (5) is slidably provided on the top of the support base (3) on the other side of the cavity. The fixed seat (4) and the movable seat (5) are both connected to a fixed shaft through a bearing assembly on the side of the cavity. The fixed seat (4) has a clamping arc block one (61) installed on one side of the fixed shaft, and the movable seat (5) has a clamping arc block two (62) installed on one side of the fixed shaft. The clamping arc block one (61) has multiple limiting components (10) symmetrically arranged at equal distances on both ends of the clamping surface side, and the clamping arc block one (61) and the clamping arc block two (62) are limited by the limiting components (10).
2. The oocyte stripping needle for assisted reproduction according to claim 1, characterized in that, The limiting component (10) includes a fixed insert rod (101), a limiting member (104) is sleeved on one side of the outer wall of the fixed insert rod (101), and a movable groove (102) is opened on the outer wall of the fixed insert rod (101) at the limiting member (104). The length of the movable groove (102) is twice the length of the limiting member (104).
3. The oocyte stripping needle for assisted reproduction according to claim 2, characterized in that, An auxiliary protrusion (103) is provided on the side of the outer wall of the movable groove (102) away from the clamping arc block (61), and the length of the auxiliary protrusion (103) is the same as the length of the limiting member (104). The auxiliary protrusion (103) is parallel to the bottom of the clamping arc block (61).
4. The oocyte stripping needle for assisted reproduction according to claim 3, characterized in that, The outer diameter of the limiting member (104) is the same as the outer diameter of the fixed plug rod (101), and a T-shaped counterweight (105) is fixedly installed at the bottom of the limiting member (104). A limiting slot is opened on the side of the limiting member (104) near the T-shaped counterweight (105) at the auxiliary protrusion (103).
5. The oocyte stripping needle for assisted reproduction according to claim 1, characterized in that, The clamping arc block two (62) has a through hole at the fixed insertion rod (101), and an auxiliary sliding groove is provided at the T-shaped counterweight block (105) in the clamping arc block two (62), and the auxiliary sliding groove is parallel to the auxiliary protrusion (103).
6. The oocyte stripping needle for assisted reproduction according to claim 1, characterized in that, The bottom of the movable seat (5) is fixedly installed with a slider. The slider is limited and slidably set in the support seat (3). A groove is opened in the support seat (3) at the slider. Multiple spring bodies (8) are installed at equal distances in the groove on the side away from the fixed seat (4). A limit counterweight (9) is inserted at the top of the support seat (3) at the groove and on the side of the slider.