Pushing device for improving embryo implantation
By designing an embryo implantation delivery device, the problem of existing devices being unable to add culture medium was solved, ensuring that the embryo has a suitable nutritional environment during the transfer process, and achieving safe, accurate delivery and efficient implantation of the embryo.
Patent Information
- Application Number
- CN202520642438.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-04-08
AI Technical Summary
Existing embryo transfer devices do not facilitate the addition of fresh culture medium, making it impossible to guarantee that the embryo has sufficient nutrition and a suitable environment during the transfer process, which affects the implantation success rate.
A device for improving embryo implantation was designed, comprising a transfer tube, a reservoir, a liquid inlet mechanism, a positioning mechanism, and a marking mechanism. The device uses a screw to move the pusher seat to achieve safe aspiration and delivery of the embryo. The liquid inlet tube ensures that the culture medium flows into the transfer tube under negative pressure, a one-way valve prevents backflow, and the marking mechanism provides precise control of the operation.
This method maintains a suitable fluid environment for the embryo during the transfer process, ensuring the embryo is safely and accurately delivered to the target location, reducing the risk of damage and failure caused by operational errors, and improving the implantation success rate.
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Figure CN223787678U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of embryo implantation pushing equipment technology, and in particular to a pushing device for improving embryo implantation. Background Technology
[0002] Currently, in vitro fertilization (IVF) is a common method for treating infertility. Clinically, the tip of the external tubing is first inserted through the cervix into the uterine cavity. Then, the inner core of the transfer catheter, containing the embryo, is inserted through the external tubing into the uterine cavity, and the embryo is placed in the appropriate position within the uterine cavity.
[0003] A search revealed a patent document with authorization announcement number CN208130036U, which discloses an embryo transfer device. The device includes a positioning tube, a plastic end, and an outer tube body. A supporting inner core is fixedly connected inside the positioning tube. A through groove is formed on one side of the plastic end. A metal probe is fixedly connected to one end of the outer wall of the positioning tube, and the other end of the outer wall is fixedly connected to the inner wall of the through groove. A first rubber block is movably connected to the inner wall of the supporting inner core, and a push rod is fixedly connected to one side of the first rubber block. This embryo transfer device, by setting a supporting inner core inside the positioning tube, can support the positioning tube, effectively preventing physical harm to the recipient during embryo transfer. The combination of the metal probe and the supporting inner core significantly reduces the difficulty of positioning the soft positioning tube during embryo transfer, thus minimizing the prolongation of the procedure time and improving the embryo survival rate.
[0004] In practical use, it has been found that existing devices are not convenient for adding fresh culture medium when aspirating embryos, which cannot guarantee that the embryos have sufficient nutrition and a suitable environment during the transfer process. As a result, the embryos cannot adapt to the uterine environment well, which affects the implantation success rate. Therefore, we propose a pushing device to improve embryo implantation and solve the above problems. Utility Model Content
[0005] The purpose of this application is to address the shortcomings of existing technologies, such as the inconvenience of adding fresh culture medium, the inability to guarantee sufficient nutrition and a suitable environment for the embryo during the transfer process, which leads to the embryo's inability to adapt to the uterine environment and affects the implantation success rate. Therefore, this application proposes a pushing device to improve embryo implantation.
[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a pushing device for improving embryo implantation, including a transplantation tube, a first pushing mechanism is provided inside the transplantation tube, a liquid storage cylinder is fixedly sleeved on the outside of the transplantation tube, and a liquid inlet mechanism is provided between the liquid storage cylinder and the transplantation tube; a connecting end is provided on the left side of the transplantation tube, a positioning mechanism is provided on the connecting end, a second pushing mechanism is provided inside the connecting end, and an identification mechanism is provided on the transplantation tube.
[0007] A further configuration of this application is: the first pushing mechanism includes a pushing seat and a screw, the pushing seat is slidably installed inside the transplant tube, the screw is threadedly installed on the right side of the transplant tube, and the left end of the screw is rotatably connected to the right side of the pushing seat.
[0008] By adopting the above technical solution and by setting up a first pushing mechanism, the screw can drive the pushing seat to move left and right, thereby achieving the purpose of creating negative pressure inside the transplantation tube to aspirate the embryo or to push the embryo.
[0009] A further feature of this application is that a knob is fixedly installed on the right end of the screw, and a first rubber pad is provided on the left side of the push seat, the first rubber pad being adapted to the inner wall of the transplant tube.
[0010] By adopting the above technical solution, and by setting a knob, the screw can be easily rotated through the knob, and the first rubber gasket can be used to seal the inner wall of the transplant tube.
[0011] A further feature of this application is that the liquid inlet mechanism includes an inlet pipe and a one-way valve, and the same inlet pipe is provided between the liquid storage cylinder and the transplant tube. The inlet pipe is located to the left of the first rubber pad, and a one-way valve is provided inside the inlet pipe.
[0012] By adopting the above technical solution and by setting up a liquid inlet mechanism, the culture medium in the storage tank flows into the transplant tube through the liquid inlet tube under the negative pressure in the transplant tube, which can achieve the purpose of ensuring that the embryo is always in a suitable liquid environment during the storage and transportation process.
[0013] A further feature of this application is that the positioning mechanism includes a connecting sleeve and a positioning tube, a connecting sleeve is threadedly installed on the left end of the connecting end, a positioning tube is provided on the left side of the connecting sleeve, and the positioning tube is adapted to the connecting end.
[0014] By adopting the above technical solution and by setting a positioning mechanism, the positioning tube can be threadedly connected to the connecting end through the connecting sleeve, which facilitates the replacement of the positioning tube and the conduit.
[0015] A further configuration of this application is: the second pushing mechanism includes a push rod and a second rubber pad, the push rod is fixedly installed on the left side of the pushing seat, the left end of the push rod passes through the first rubber pad, the left end of the push rod is fixedly installed with the second rubber pad, and the second rubber pad is adapted to the inner wall of the positioning tube.
[0016] By adopting the above technical solution and by setting a second pushing mechanism, the pushing seat can drive the push rod and the second rubber pad to move synchronously, so as to push the embryo to the predetermined position of the uterus through the positioning tube and catheter, and to prevent the embryo from deviating or leaking during the pushing process, so as to ensure that the embryo can be accurately delivered to the target position according to the predetermined path.
[0017] A further feature of this application is that the marking mechanism includes a viewing window and a scale line, the top of the transplant tube is provided with a viewing window and a scale line, the viewing window is located above the scale line, the viewing window is located on the right side of the liquid storage cylinder, and the first rubber pad is adapted to the scale line.
[0018] By adopting the above technical solution and setting up an identification mechanism, operators can obtain quantitative information about the embryo and its internal fluid, such as fluid volume and embryo location, thus achieving precise control over the embryo aspiration and delivery operation.
[0019] A further feature of this application is that a catheter is provided on the left side of the positioning tube, and the catheter is made of medical-grade silicone material.
[0020] By adopting the above technical solution and by setting up a catheter, the catheter can come into contact with the internal tissues of the uterus more naturally, ensuring that the embryo can be successfully transported from the positioning tube to the target location in the uterus.
[0021] The beneficial effects of this application are:
[0022] (1) By cooperating with the knob, screw, push seat and first rubber pad, the push seat can be moved to slide left and right by rotating the knob, which can ensure that the embryo is safely and accurately drawn into the transfer tube, effectively avoiding mechanical damage to the embryo due to improper drawing process, and can push the embryo to the predetermined position of the uterus through the positioning tube and catheter, preventing the embryo from deviating or leaking during the pushing process, and ensuring that the embryo can be accurately delivered to the target position according to the predetermined path.
[0023] (2) By combining the inlet tube and the one-way valve, when the embryo is aspirated, the culture medium in the reservoir flows into the transplant tube through the inlet tube under the negative pressure in the transplant tube. The one-way valve can effectively prevent the culture medium from flowing back, ensuring that the embryo is always in a suitable liquid environment during storage and transportation. This can maintain the normal metabolism and cell activity of the embryo and lay a good physiological foundation for embryo implantation.
[0024] (3) Through the combination of the viewing window and the scale line, the operator can obtain quantitative information about the embryo and its internal fluid, such as the fluid volume and the location of the embryo. This enables precise control of the embryo aspiration and pushing operation, thereby helping to improve the success rate of embryo implantation and reduce the risk of embryo damage and implantation failure caused by operational errors. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a three-dimensional structural schematic diagram of a pushing device for improving embryo implantation according to this application;
[0027] Figure 2 This is a schematic diagram of the internal structure of the liquid reservoir of a pushing device for improving embryo implantation according to this application;
[0028] Figure 3 This is a schematic diagram of the internal structure of the transplant tube, connecting end, and inlet tube of the push device for improving embryo implantation according to this application;
[0029] Figure 4 This is a schematic diagram of the internal structure of the implantation tube, connecting end, and positioning tube of the delivery device for improving embryo implantation according to this application.
[0030] In the diagram: 1. Transplantation tube; 2. Liquid reservoir; 3. Connecting end; 4. Viewing window; 5. Catheter; 101. Push seat; 102. Screw; 103. Knob; 104. First rubber pad; 201. Inlet tube; 202. Check valve; 301. Connecting sleeve; 302. Positioning tube; 303. Push rod; 304. Second rubber pad; 401. Scale line. Detailed Implementation
[0031] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0032] See Figures 1-4 This application provides a pushing device for improving embryo implantation, including a transplant tube 1, a first pushing mechanism inside the transplant tube 1, a liquid storage cylinder 2 fixedly sleeved on the outside of the transplant tube 1, and a liquid inlet mechanism between the liquid storage cylinder 2 and the transplant tube 1; a connecting end 3 is provided on the left side of the transplant tube 1, a positioning mechanism is provided on the connecting end 3, a second pushing mechanism is provided inside the connecting end 3, and an marking mechanism is provided on the transplant tube 1.
[0033] Specifically, the first pushing mechanism includes a pushing seat 101 and a screw 102. The pushing seat 101 is slidably installed inside the transplant tube 1, and the screw 102 is threadedly installed on the right side of the transplant tube 1. The left end of the screw 102 is rotatably connected to the right side of the pushing seat 101.
[0034] Specifically, a knob 103 is fixedly installed on the right end of the screw 102, and a first rubber pad 104 is provided on the left side of the push seat 101. The first rubber pad 104 is adapted to the inner wall of the transplant tube 1.
[0035] Specifically, the liquid inlet mechanism includes a liquid inlet pipe 201 and a one-way valve 202. The same liquid inlet pipe 201 is provided between the liquid storage cylinder 2 and the transplant tube 1. The liquid inlet pipe 201 is located to the left of the first rubber pad 104, and a one-way valve 202 is provided inside the liquid inlet pipe 201.
[0036] Specifically, the positioning mechanism includes a connecting sleeve 301 and a positioning tube 302. The connecting sleeve 301 is threadedly installed on the left end of the connecting end 3, and the positioning tube 302 is provided on the left side of the connecting sleeve 301. The positioning tube 302 is adapted to the connecting end 3.
[0037] Specifically, the second pushing mechanism includes a push rod 303 and a second rubber pad 304. The push rod 303 is fixedly installed on the left side of the pushing seat 101. The left end of the push rod 303 passes through the first rubber pad 104. The second rubber pad 304 is fixedly installed on the left end of the push rod 303. The second rubber pad 304 is adapted to the inner wall of the positioning tube 302.
[0038] Specifically, the marking mechanism includes a viewing window 4 and a scale line 401. The top of the transplant tube 1 is provided with a viewing window 4 and a scale line 401. The viewing window 4 is located above the scale line 401 and is located on the right side of the liquid storage cylinder 2. The first rubber pad 104 is adapted to the scale line 401.
[0039] Specifically, a catheter 5 is provided on the left side of the positioning tube 302, and the catheter 5 is made of medical-grade silicone material.
[0040] In this application, during use, the doctor first uses professional medical equipment to precisely place one end of the catheter 5 in a designated area inside the uterus near the implantation point. The positioning tube 302 provides precise directional guidance for the embryo's movement, effectively avoiding unnecessary damage to other uterine tissues and ensuring that the embryo is accurately delivered to the ideal implantation location, reducing the risk of implantation failure due to improper implantation location. By rotating the knob 103, the operator drives the screw 102 to perform circular motion. Since the screw 102 and the transfer tube 1 are connected by a threaded structure, the circular motion of the screw 102 is smoothly converted into axial displacement, which in turn drives the pusher seat 101 inside the transfer tube 1 to slide to the right. This ensures that the embryo is safely and accurately aspirated into the transfer tube, effectively avoiding mechanical damage to the embryo due to improper aspiration.
[0041] The reservoir 2 is pre-stored with carefully prepared culture medium, the composition of which is highly compatible with the physiological conditions such as nutrients and osmotic pressure required by the embryo. When the embryo is aspirated, the culture medium in the reservoir 2 flows into the transfer tube 1 through the inlet pipe 201 under the negative pressure in the transfer tube 1. Through the one-way valve 202, the backflow of the culture medium can be effectively prevented, ensuring that the embryo is always in a suitable liquid environment during storage and transportation. This can maintain the normal metabolism and cell activity of the embryo, laying a good physiological foundation for embryo implantation.
[0042] When the embryo is pushed, the pusher seat 101 moves to the left, and the push rod 303 fixedly connected to it moves synchronously. With the tight fit between the second rubber pad 304 and the inner wall of the positioning tube 302, a stable pushing force is generated, which can push the embryo through the positioning tube 302 and the catheter 5 to the predetermined position in the uterus. During this process, the sealing effect between the second rubber pad 304 and the inner wall of the positioning tube 302 can prevent the embryo from shifting or leaking during the pushing process, and ensure that the embryo can be accurately delivered to the target position according to the predetermined path.
[0043] The visual window 4 and the scale line 401 work together to provide the operator with intuitive operational feedback. Through the visual window 4, the operator can observe the positional changes of the first rubber pad 104 in real time, thereby judging the dynamic situation of the embryo and its internal fluid. Combined with the scale line 401, the operator can obtain quantitative information about the embryo and its internal fluid, such as fluid volume and embryo position. This enables precise control of the embryo aspiration and pushing operation, which helps to improve the success rate of embryo implantation and reduce the risk of embryo damage and implantation failure caused by operational errors.
Claims
1. A pushing device for improving embryo implantation, characterized in that, It includes a transplant tube (1), a first pushing mechanism is provided inside the transplant tube (1), a liquid storage cylinder (2) is fixedly sleeved on the outside of the transplant tube (1), and a liquid inlet mechanism is provided between the liquid storage cylinder (2) and the transplant tube (1); The transplant tube (1) has a connecting end (3) on its left side, a positioning mechanism on the connecting end (3), a second pushing mechanism inside the connecting end (3), and an identification mechanism on the transplant tube (1).
2. The pushing device for improving embryo implantation according to claim 1, characterized in that: The first pushing mechanism includes a pushing seat (101) and a screw (102). The pushing seat (101) is slidably installed inside the transplant tube (1). The screw (102) is threadedly installed on the right side of the transplant tube (1). The left end of the screw (102) is rotatably connected to the right side of the pushing seat (101).
3. The pushing device for improving embryo implantation according to claim 2, characterized in that: A knob (103) is fixedly installed on the right end of the screw (102), and a first rubber pad (104) is provided on the left side of the push seat (101). The first rubber pad (104) is adapted to the inner wall of the transplant tube (1).
4. The pushing device for improving embryo implantation according to claim 1, characterized in that: The liquid inlet mechanism includes an inlet pipe (201) and a one-way valve (202). The same inlet pipe (201) is provided between the liquid storage cylinder (2) and the transplant tube (1). The inlet pipe (201) is located to the left of the first rubber pad (104). The one-way valve (202) is provided inside the inlet pipe (201).
5. The pushing device for improving embryo implantation according to claim 1, characterized in that: The positioning mechanism includes a connecting sleeve (301) and a positioning tube (302). The connecting end (3) is threaded with the connecting sleeve (301) on its left end, and the positioning tube (302) is provided on the left side of the connecting sleeve (301). The positioning tube (302) is adapted to the connecting end (3).
6. The pushing device for improving embryo implantation according to claim 2, characterized in that: The second pushing mechanism includes a push rod (303) and a second rubber pad (304). The push rod (303) is fixedly installed on the left side of the pushing seat (101). The left end of the push rod (303) passes through the first rubber pad (104). The second rubber pad (304) is fixedly installed on the left end of the push rod (303). The second rubber pad (304) is adapted to the inner wall of the positioning tube (302).
7. The pushing device for improving embryo implantation according to claim 3, characterized in that: The marking mechanism includes a viewing window (4) and a scale line (401). The top of the transplant tube (1) is provided with a viewing window (4) and a scale line (401). The viewing window (4) is located above the scale line (401). The viewing window (4) is located on the right side of the liquid storage cylinder (2). The first rubber pad (104) is adapted to the scale line (401).
8. The pushing device for improving embryo implantation according to claim 5, characterized in that: A catheter (5) is provided on the left side of the positioning tube (302), and the catheter (5) is made of medical-grade silicone material.
Citation Information
Patent Citations
Embryo transplantation device
CN208130036U