Force-controllable push syringe for embryo transplantation

Abstract

The utility model discloses a force-controllable embryo transplantation push syringe, which comprises an outer tube, a culture solution storage bag and an embryo culture solution injection tube which are connected from top to bottom, the side wall of the outer tube is provided with an insertion port, the culture solution storage bag is respectively communicated with the outer tube and the embryo culture solution injection tube, a mounting block is arranged in the culture solution storage bag, and the mounting block is connected with the embryo culture solution injection tube through the insertion port. A channel communicated with the embryo culture solution injection pipe is arranged in the mounting block, and a one-way mechanism is arranged in the channel; and a pushing and injecting mechanism is arranged in the outer pipe. And through the pushing and injecting device with a limiting structure, the force of the embryo culture solution in the pushing and injecting process can be limited, and the implantation rate of the embryo is further improved. And through the cooperation of a one-way structure, external substances cannot enter the culture solution storage bag along the channel, so that the pollution condition is avoided. Meanwhile, the one-way mechanism can be opened in the injection process, and it is guaranteed that embryo transplantation is conducted smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of embryo transplantation, in particular to a force-controllable embryo transplantation push syringe. Background Art

[0002] During the embryo transfer process, the operator pushes the syringe to transfer the embryo, and the force in this process is difficult to control. If there is a problem of excessive injection or insufficient injection force, it is very easy to lead to poor embryo transfer effect and low embryo implantation success rate.

[0003] If the embryo culture fluid overflows before the push injection, it will affect the entire conception process. The push injector needs to be kept airtight to ensure stable embryo transfer. Utility Model Content

[0004] The utility model aims to provide a force-controllable embryo transplant push syringe to solve the problem that the force in the embryo culture fluid push injection process is not limited.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a force-controllable embryo transplant push syringe, comprising an outer tube, a culture fluid storage bag and an embryo culture fluid injection tube connected from top to bottom, an insertion port is opened on the side wall of the outer tube, the culture fluid storage bag is respectively connected to the outer tube and the embryo culture fluid injection tube, a mounting block is arranged in the culture fluid storage bag, a channel connected to the embryo culture fluid injection tube is arranged in the mounting block, and a one-way mechanism is arranged in the channel; a push injection mechanism is arranged in the outer tube.

[0006] Compared with the prior art, the beneficial effects of the utility model are:

[0007] The push-in device with a limit structure can limit the force of the embryo culture solution during the push-in process, further improving the embryo implantation rate. And through the cooperation of the one-way structure, foreign substances will not enter the culture solution storage bag along the channel to avoid contamination. At the same time, the one-way mechanism can also be opened during the push-in process to ensure the smooth progress of embryo transplantation.

[0008] By setting the airbag, the angle of the embryo culture fluid injection tube can be adjusted by its own expansion, so as to select the transplantation position according to the specific conditions of the uterine inner wall, further increasing the probability of pregnancy. And through the cooperation of the receiving part, the discomfort of women during the pregnancy process is reduced, thereby ensuring that the cervical mucosa will not be punctured due to the movement of the embryo culture fluid injection tube during the entire transplantation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a cross-sectional view of the force-controllable embryo transplant push syringe of the utility model.

[0010] Figure 2 It is a schematic diagram of the insertion part of the utility model.

[0011] Figure 3 It is a schematic diagram of the receiving part of the utility model.

[0012] Figure 4 It is a top view of the one-way mechanism of the utility model.

[0013] Figure 5 This is a detailed diagram of the one-way mechanism of the utility model.

[0014] 1. Culture medium storage bag; 2. Embryo culture medium injection tube; 3. Outer tube; 31. Insertion port; 32. Shielding wall; 33. Ventilation membrane; 4. Receiving part; 5. Air bag; 6. Extraction bag; 7. Mounting block; 71. Channel; 8. One-way mechanism; 81. Mounting ring; 82. Support column; 83. Semicircular baffle; 84. Elastic part; 85. Block; 9. Push rod; 10. Rubber head; 11. Limiting rubber ring. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-5 The utility model provides a technical solution: a force-controllable embryo transfer push syringe, comprising an outer tube 3, a culture medium storage bag 1 and an embryo culture medium injection tube 2 connected from top to bottom, and an insertion port 31 is opened on the side wall of the outer tube 3 for injecting embryo culture medium.

[0017] like Figure 3 As shown, the device is provided with a receiving portion 4, which is composed of a hemispherical receiving head 41 and an insertion tube 42. When in use, the hemispherical receiving head 41 is pressed against the cervical os, and the insertion tube 42 is inserted into the uterus, thereby ensuring that the entire transplantation process will not cause the cervical mucosa to be punctured due to excessive movement of the embryo culture fluid injection tube 2. After the embryo culture fluid injection tube 2 is installed in the insertion tube 42, the hemispherical receiving head 41 cooperates with the culture fluid storage bag 1. At this time, the hemispherical receiving head 41 is wrapped outside the culture fluid storage bag 1 to ensure its bearing stability. At the same time, the culture fluid storage bag 1 can also adjust the rotation angle as needed.

[0018] In order to prevent the embryo culture solution from splashing out, the inner wall of the outer tube 3 is provided with a shielding wall 32, which is arranged inside the insertion port 31, and the opening of the shielding wall 32 faces the culture solution storage bag 1. A venting membrane 33 is also provided inside the outer tube 3, and the venting membrane 33 is arranged on the upper side of the shielding wall 32. Specifically, the venting membrane 33 is provided with a cross-shaped incision to ensure that only a ventilation effect can be achieved here, so as not to affect the push injection process of the device.

[0019] Since the embryo needs to select the transplantation position according to the specific conditions of the inner wall of the uterus, only by fine-tuning the angle of the embryo culture solution injection tube 2 can the transplantation needs be met. The embryo culture solution injection tube 2 is embedded with an air bag 5, which is made of soft material. The angle of the embryo culture solution injection tube 2 is adjusted by the expansion of the air bag 5. A hose is also embedded in the through hole of the embryo culture solution injection tube 2, and the culture solution is output through the hose to avoid the expansion of the air bag 5. A ventilation tube is embedded in the outer tube 3, the culture solution storage bag 1 and the embryo culture solution injection tube 2. One end of the ventilation tube is connected to the air bag 5, and the other end of the ventilation tube is connected to the extraction bag 6. The air bag 5 is expanded by squeezing the extraction bag 6.

[0020] The outer tube 3 is provided with a push mechanism, which includes a push rod 9 and a rubber head 10 connected to each other, and the rubber head 10 is placed in the inner cavity of the outer tube 3, and the vent membrane 33 is arranged below the rubber head 10. In order to limit the maximum push stroke, the push rod 9 is provided with a limit rubber ring 11. The inner cavity of the outer tube 3 is provided with a limit block, and the limit block cooperates with the limit rubber ring 11. After the limit block and the limit rubber ring 11 are stuck, the push rod 9 can no longer move downward to avoid excessive push.

[0021] The culture solution storage bag 1 is connected to the outer tube 3 and the embryo culture solution injection tube 2 respectively, and a mounting block 7 is provided in the culture solution storage bag 1. The mounting block 7 is provided with a channel 71 connected to the embryo culture solution injection tube 2, and a one-way mechanism 8 is provided in the channel 71. Through the setting of the one-way mechanism 8, foreign substances will not enter the culture solution storage bag 1 along the channel 71 to avoid contamination. At the same time, the one-way mechanism 8 can also be opened during the push injection process to ensure the smooth progress of embryo transplantation.

[0022] The one-way mechanism 8 comprises a mounting ring 81, the inner ring of which is provided with a pillar 82, and the two sides of the pillar 82 are symmetrically rotated and connected with a semicircular baffle 83, and an elastic member 84 is provided between the upper surfaces of the semicircular baffles 83 on both sides, and the elastic member 84 can be a spring or a spring sheet, etc. The purpose is to enable the semicircular baffles 83 on both sides to be normally reset, and to store the embryo culture solution in the culture solution storage bag 1. The bottom surface of the semicircular baffle 83 is provided with a stopper 85, which is used to limit the maximum amplitude of the rotation of the semicircular baffle 83. After the push rod 9 pushes downward, the semicircular baffles 83 on both sides turn downward, so that the embryo culture solution can flow into the embryo culture solution injection tube 2 normally. After the push is completed, the semicircular baffles 83 on both sides can be normally reset under the influence of the elastic member 84.

[0023] Working principle: After the culture fluid containing mature oocytes is injected into the embryo culture fluid through the insertion port 31, the cover can be used to seal the device to ensure the sealing of the device during the subsequent push injection process. According to the actual push injection amount required, the specific position of the limit rubber ring 11 is adjusted to limit its movable stroke, thereby achieving the effect of controlling the push injection amount.

[0024] After the hemispherical socket 41 is placed against the cervical opening, the insertion tube 42 is inserted into the uterus, and the embryo culture fluid injection tube 2 is installed in the insertion tube 42, the extraction bag 6 is squeezed to expand the air bag 5 according to the actual implantation position, so that the embryo culture fluid injection tube 2 is aligned with the inner wall of the uterus at a suitable position. This process can be carried out in conjunction with a three-dimensional ultrasound instrument. By pressing the push rod 9 for push injection, the outer tube 3 of the rubber head 10 and the inner cavity space of the culture fluid storage bag 1 are squeezed to cause the semicircular baffle 83 to flip, and at this time, the embryo culture fluid will be injected into the inner wall of the uterus along the curved embryo culture fluid injection tube 2, thereby realizing the entire embryo transplantation process.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A force-controllable embryo transfer push syringe, characterized in that: The invention comprises an outer tube (3), a culture fluid storage bag (1) and an embryo culture fluid injection tube (2) connected from top to bottom, the side wall of the outer tube (3) is provided with an insertion port (31), the culture fluid storage bag (1) is connected to the outer tube (3) and the embryo culture fluid injection tube (2) respectively, the culture fluid storage bag (1) is provided with a mounting block (7), the mounting block (7) is provided with a channel (71) connected to the embryo culture fluid injection tube (2), and a one-way mechanism (8) is provided in the channel (71); the outer tube (3) is provided with a push injection mechanism; The push injection mechanism comprises a push injection rod (9) and a rubber head (10) connected to each other, and the rubber head (10) is placed in the inner cavity of the outer tube (3); The outer shell of the injection rod (9) is provided with a limiting rubber ring (11), and the inner cavity of the outer tube (3) is provided with a limiting block, and the limiting block cooperates with the limiting rubber ring (11).

2. The force-controllable embryo transfer syringe according to claim 1, characterized in that: It also comprises a receiving portion (4), wherein the receiving portion (4) is composed of a hemispherical receiving head (41) and an insertion tube (42).

3. The force-controllable embryo transfer push syringe according to claim 1, characterized in that: The inner wall of the outer tube (3) is provided with a shielding wall (32), which is arranged on the inner side of the insertion port (31), and the opening of the shielding wall (32) faces the culture fluid storage bag (1).

4. The force-controllable embryo transfer syringe according to claim 1, characterized in that: An air bag (5) is embedded in the embryo culture fluid injection tube (2), and a ventilation tube is embedded in the outer tube (3), the culture fluid storage bag (1) and the embryo culture fluid injection tube (2). One end of the ventilation tube is connected to the air bag (5), and the other end of the ventilation tube is connected to the extraction bag (6).

5. The force-controllable embryo transfer syringe according to claim 3, characterized in that: A vent membrane (33) is provided inside the outer tube (3), and the vent membrane (33) is arranged on the upper side of the shielding wall (32).

6. The force-controllable embryo transfer syringe according to claim 1, characterized in that: The one-way mechanism (8) comprises a mounting ring (81), the inner ring of which is provided with a support (82), the two sides of which are symmetrically rotatably connected with semicircular baffles (83), and an elastic member (84) is provided between the upper surfaces of the semicircular baffles (83) on both sides.

7. The force-controllable embryo transfer push syringe according to claim 6, characterized in that: A stopper (85) is provided on the bottom surface of the semicircular baffle (83).

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