Special placental membrane stripping introducer for obstetrics

Abstract

The utility model relates to medical instrument technical field discloses obstetrical membrane stripping guide ware is special for midwifery, including guide pipe, the front end fixed connection of guide pipe has square block, the inside slide connection of square block has adjusting mechanism, the inside rotation connection of square block has display mechanism, the adjusting mechanism includes square board, the inside of square block is provided with chamber, the inner wall of chamber is connected in the outer wall slide of square board, the middle part fixed connection of square board has connecting rod, the outside of connecting rod is equipped with spring, the rear end fixed connection of connecting rod has tooth block, the inside rotation connection of square block has rotating rod. In the utility model, when reaching suitable position after guide rod, loosening pull plate, spring drives square board reverse movement, makes tooth block re -engagement, clamps rack plate fixed guide rod, and the operation is simple and convenient, greatly reduced the operation difficulty of medical staff.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a fetal membrane stripping and introduction device for obstetrics. Background Technology

[0002] The fetal membranes are membranous structures that enclose the fetus and amniotic fluid during embryonic development. They are mainly composed of the chorion and amnion. The chorion is the outer layer, connected to the uterine wall, and plays a crucial role in substance exchange; the amnion is the inner layer, tough and transparent, tightly enclosing the fetus and amniotic fluid, providing an effective protective barrier for the fetus. In early fetal development, the yolk sac provides nutrition, later gradually degenerating. The allantoic follicle participates in the formation of the placenta, and the umbilical cord is a cord-like structure connecting the fetus and placenta, facilitating substance exchange.

[0003] Debridement is an important obstetric procedure that involves separating the fetal membranes from the uterine wall or placenta. In some special cases, such as when the fetal membranes have not been completely expelled after the baby is delivered, debridement may be necessary to ensure the normal recovery of the uterus and to avoid complications such as postpartum hemorrhage.

[0004] Traditional amniotomy tools lack simple and effective operational control mechanisms, often requiring medical staff to follow complex procedures to control the depth of the tool's insertion into the pregnant woman's uterus and to secure it. For example, some tools require multiple mechanical adjustments or rely on the experience of medical staff to judge the depth, which increases the complexity and uncertainty of the operation. To address these issues, a specialized amniotomy insertion device for obstetric use has been proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a special obstetric membrane stripping inlet device, which aims to improve the problem that some existing membrane stripping tools lack a simple and effective operation control mechanism, increasing the complexity and difficulty for medical staff during operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A special obstetric amniotic membrane stripping inlet includes an inlet tube, a square block fixedly connected to the front end of the inlet tube, an adjustment mechanism slidably connected inside the square block, and a display mechanism rotatably connected inside the square block.

[0008] The adjustment mechanism includes a square plate with a cavity inside. The outer wall of the square plate is slidably connected to the inner wall of the cavity. A connecting rod is fixedly connected to the middle of the square plate. A spring is sleeved on the outside of the connecting rod. A toothed block is fixedly connected to the rear end of the connecting rod. A rotating rod is rotatably connected inside the square plate. A gear is fixedly connected to the outside of the rotating rod. An operating component is slidably connected inside the inlet tube.

[0009] As a further description of the above technical solution:

[0010] The display mechanism includes a second gear, a fixed rod fixedly connected inside the second gear, the bottom end of the fixed rod fixedly connected to the top end of the rotating rod, a receiving chamber opened inside the square block, a transmission rod rotatably connected inside the receiving chamber, a third gear fixedly connected outside the transmission rod, and a display meter fixedly connected to the top end of the square block.

[0011] As a further description of the above technical solution:

[0012] The operating component includes an inlet rod, the outer wall of which is slidably connected to the inner wall of the inlet tube. A groove is provided at the front end of the inlet rod, and a rack plate is fixedly connected to the inner wall of the groove. A control handle is fixedly connected to the right end of the inlet rod, and a peeling head is rotatably connected to the left end of the inlet rod.

[0013] As a further description of the above technical solution:

[0014] The outer side of the rack plate is meshed with the outer side of the first gear, and the outer side of the first gear is meshed with the outer side of the tooth block.

[0015] As a further description of the above technical solution:

[0016] The front side of the spring is fixedly connected to the front inner wall of the chamber, the rear side of the spring is fixedly connected to the front side of the square plate, and the outside of the connecting rod is slidably connected to the inside of the square block.

[0017] As a further description of the above technical solution:

[0018] A pull plate is fixedly connected to the front end of the connecting rod, and the rear side of the pull plate contacts the front side of the square block;

[0019] As a further description of the above technical solution:

[0020] The outer part of gear three is meshed with the outer part of gear two, and the outer part of the fixed rod is rotatably connected to the inside of the square block;

[0021] As a further description of the above technical solution:

[0022] The display is internally rotatably connected to an indicator rod, the bottom end of which is fixedly connected to the top end of the transmission rod.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, medical staff can easily disengage the toothed block from the gear by simply pulling the pull plate, allowing the guide rod to slide inside the guide tube. Medical staff can control the movement of the guide rod through the control handle. When the guide rod reaches the appropriate position, the pull plate is released, and the spring drives the square plate to move in the opposite direction, causing the toothed block to re-engage and locking the rack plate to fix the guide rod. The operation is simple and convenient, greatly reducing the difficulty of operation for medical staff.

[0025] 2. In this utility model, when the introductory rod moves, gear one rotates, which in turn drives the rotating rod to rotate. The rotating rod drives gear two to rotate through the fixed rod. Since gear three meshes with gear two, the rotation of gear two will drive gear three to rotate. The rotation of gear three drives the transmission rod to rotate, and the rotation of the transmission rod drives the indicator rod of the display to rotate. The rotation angle of the indicator rod can intuitively show the depth of the introductory rod insertion. Through precise transmission relationship, the movement of the introductory rod can be accurately converted into the rotation angle of the indicator rod, providing medical staff with precise operating basis. Attached Figure Description

[0026] Figure 1 This is a perspective view of the obstetric-specific fetal membrane stripping inlet device proposed in this utility model;

[0027] Figure 2 A schematic diagram of the square block structure of the obstetric-specific fetal membrane stripping introductory device proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Inlet tube; 2. Square block; 3. Chamber; 4. Square plate; 5. Connecting rod; 6. Spring; 7. Toothed block; 8. Pulling plate; 9. Rotating rod; 10. Gear one; 11. Inlet rod; 12. Rack plate; 13. Control handle; 14. Peeling head; 15. Gear two; 16. Receiving chamber; 17. Transmission rod; 18. Gear three; 19. Display table; 20. Indicator rod. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a placental detachment and insertion device specifically designed for obstetric use. The device includes an insertion tube 1, with a square block 2 fixedly connected to its front end. An adjustment mechanism is slidably connected inside the square block 2, and a display mechanism is rotatably connected inside the square block 2. The insertion tube 1 is the basic structure of the entire device, providing space for other components to be accommodated and supported, ensuring stability during operation, and is a crucial foundation for placental detachment and insertion. The square block 2 houses the adjustment mechanism and allows for the proper installation of components such as the display mechanism. Furthermore, the internal rotatable connections ensure the coordinated operation of the entire device's internal structure.

[0033] The adjustment mechanism includes a square plate 4, with a chamber 3 inside the square block 2. The outer wall of the square plate 4 is slidably connected to the inner wall of the chamber 3. The chamber 3 accommodates the square plate 4 and provides space for its sliding and connection. A connecting rod 5 is fixedly connected to the middle of the square plate 4, and the outer side of the connecting rod 5 is slidably connected to the inside of the square block 2. A spring 6 is sleeved on the outside of the connecting rod 5. The front side of the spring 6 is fixedly connected to the front inner wall of the chamber 3, and the rear side of the spring 6 is fixedly connected to the front side of the square plate 4. A toothed block 7 is fixedly connected to the rear end of the connecting rod 5, and a pulling plate 8 is fixedly connected to the front end of the connecting rod 5. The rear side of the pulling plate 8 contacts the front side of the square block 2. A rotating rod 9 is rotatably connected inside the square block 2, and a gear 10 is fixedly connected to the outside of the rotating rod 9. The outside of the gear 10 is meshed with the outside of the toothed block 7.

[0034] An operating component is slidably connected inside the inlet tube 1. This operating component includes an inlet rod 11, whose outer wall is slidably connected to the inner wall of the inlet tube 1. A connecting rod 5 is a key component connecting the square plate 4, the toothed block 7, and the pulling plate 8. The connecting rod 5 transmits the pulling force of the pulling plate 8 to the square plate 4 and the toothed block 7, causing the toothed block 7 to move forward and disengage from the gear 10. Simultaneously, under the action of the reverse force, it can drive the toothed block 7 to re-engage, controlling the fixation of the inlet rod 11. The spring 6 plays an important role in elastic recovery in the adjustment mechanism. When the square plate 4 moves forward and compresses the spring 6, the spring 6 stores energy. After releasing the pulling plate 8, the spring 6 releases energy, generating pressure that drives the square plate 4 backward, causing the toothed block 7 to re-engage with the gear 10, thus fixing the inlet rod 11. Whether the toothed block 7 engages with the gear 10 determines the fixed state of the inlet rod 11. When the toothed block 7 meshes with the gear 10, it can hold the rack plate 12, thereby fixing the guide rod 11. When disengaged, the guide rod 11 can slide inside the guide tube 1, realizing flexible operation of the guide rod 11. The pull plate 8 is a component directly operated by medical staff. Medical staff pull the pull plate 8 outward, driving the connecting rod 5 forward, thereby realizing a series of operations such as disengaging the toothed block 7 from the gear 10. The depth of the guide rod 11 can be controlled by simply operating the pull plate 8, reducing the difficulty of operation. The front end of the guide rod 11 has a groove, and the rack plate 12 is fixedly connected to the inner wall of the groove. The outside of the rack plate 12 is meshed with the outside of the gear 10. The right end of the guide rod 11 is fixedly connected to the control handle 13, and the left end of the guide rod 11 is rotatably connected to the peeling head 14. The guide rod 11 is the direct tool for placental removal. It slides inside the guide tube 1. The left end is equipped with a lighting and camera device. Medical staff control it to move into the appropriate position in the pregnant woman's uterus through the control handle 13. The rack plate 12 at its front end cooperates with the gear 10 to achieve fixation and movement control. The peeling head 14 at the left end is used to peel off the placenta.

[0035] Reference Figure 2 and Figure 3The display mechanism includes a second gear 15, with a fixed rod fixedly connected inside the second gear 15. The fixed rod is rotatably connected to the inside of the square block 2. The bottom end of the fixed rod is fixedly connected to the top end of the rotating rod 9. The second gear 15 plays the role of transmitting power in the display mechanism, receiving power from the rotating rod 9 through the fixed rod and rotating it. The inside of the square block 2 is provided with a receiving chamber 16, and a transmission rod 17 is rotatably connected inside the receiving chamber 16, providing rotation space for the transmission rod 17. A third gear 18 is fixedly connected to the outside of the transmission rod 17, and the outside of the third gear 18 is meshed with the outside of the second gear 15. A display dial 19 is fixedly connected to the top end of the square block 2. An indicator rod 20 is rotatably connected inside the display dial 19, and the bottom end of the indicator rod 20 is fixedly connected to the top end of the transmission rod 17. The transmission rod 17 plays a power transmission role in the display mechanism, transmitting the rotational power of gear 3 18 to the indicator rod 20. This ensures that the rotation of gear 3 18 is accurately converted into the rotation of the indicator rod 20, thereby realizing the display function of the insertion depth of the guide rod 11. Gear 3 18 receives power from gear 2 15 and transmits it to the transmission rod 17. The meshing relationship between gear 3 18 and gear 2 15 ensures effective power transmission. It is the intermediate link in converting the movement of the guide rod 11 into the rotation of the indicator rod 20 on the display dial 19. The size of gear 3 18 is larger than that of gear 2 15 to ensure the accuracy of the depth display. The display dial 19 is the component that displays the insertion depth of the guide rod 11. It provides space for the installation and rotation of the indicator rod 20. The rotation angle of the indicator rod 20 intuitively displays the insertion depth of the guide rod 11, providing accurate information for medical personnel and improving the safety and accuracy of the operation.

[0036] Working principle: By pulling the pull plate 8 outward, the connecting rod 5 moves forward, which in turn moves the toothed block 7 forward to disengage from the gear 10. At the same time, the forward-moving connecting rod 5 moves the square plate 4 forward to compress the spring 6. The disengaged gear 10 can rotate with the rack plate 12, allowing the guide rod 11 to slide inside the guide tube 1. Medical staff can hold the control handle 13 to control the guide rod 11 to move into the pregnant woman's uterus. When the guide rod 11 moves to the appropriate position, the pull plate 8 is released, and the pressure generated by the compression of the spring 6 moves the square plate 4 backward, which in turn, with the connection of the connecting rod 5, causes the toothed block 7 to re-engage with the gear 10, thereby locking the rack plate 12 to fix the guide rod 11. Then, the placenta is peeled off using the peeling head 14. The depth of the guide rod 11 is controlled and fixed by simply pulling the pull plate 8, reducing the difficulty of operation for medical staff.

[0037] When the guide rod 11 moves, gear 10 rotates simultaneously. The rotation of gear 10 drives the rotating rod 9 to rotate, which in turn drives gear 2 15 to rotate. Since gear 3 18 is meshed with gear 2 15, the rotation of gear 2 15 drives gear 3 18 to rotate. The rotation of gear 3 18 drives the transmission rod 17 to rotate, which in turn drives the indicator rod 20 of the display 19 to rotate. The indicator rod 20 is used to display the depth of the guide rod 11, providing the operator with more accurate operating information.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fetal membrane stripping inlet device for obstetric use, comprising an inlet tube (1), characterized in that: The front end of the inlet tube (1) is fixedly connected to a square block (2), and an adjustment mechanism is slidably connected inside the square block (2). A display mechanism is rotatably connected inside the square block (2). The adjustment mechanism includes a square plate (4), a cavity (3) is opened inside the square block (2), the outer wall of the square plate (4) is slidably connected to the inner wall of the cavity (3), a connecting rod (5) is fixedly connected to the middle of the square plate (4), a spring (6) is sleeved on the outside of the connecting rod (5), a toothed block (7) is fixedly connected to the rear end of the connecting rod (5), a rotating rod (9) is rotatably connected inside the square block (2), a gear (10) is fixedly connected to the outside of the rotating rod (9), and an operating component is slidably connected inside the inlet tube (1).

2. The obstetric-specific fetal membrane stripping inlet device according to claim 1, characterized in that: The display mechanism includes a second gear (15), a fixed rod is fixedly connected inside the second gear (15), the bottom end of the fixed rod is fixedly connected to the top end of the rotating rod (9), a receiving chamber (16) is opened inside the square block (2), a transmission rod (17) is rotatably connected inside the receiving chamber (16), a third gear (18) is fixedly connected outside the transmission rod (17), and a display table (19) is fixedly connected to the top end of the square block (2).

3. The obstetric-specific amniotic membrane stripping inlet device according to claim 1, characterized in that: The operating component includes an inlet rod (11), the outer wall of which is slidably connected to the inner wall of the inlet tube (1), a groove is provided at the front end of the inlet rod (11), a rack plate (12) is fixedly connected to the inner wall of the groove, a control handle (13) is fixedly connected to the right end of the inlet rod (11), and a peeling head (14) is rotatably connected to the left end of the inlet rod (11).

4. The obstetric-specific amniotic membrane stripping inlet device according to claim 3, characterized in that: The outside of the rack plate (12) is meshed with the outside of the gear one (10), and the outside of the gear one (10) is meshed with the outside of the tooth block (7).

5. The obstetric-specific amniotic membrane stripping inlet device according to claim 1, characterized in that: The front side of the spring (6) is fixedly connected to the front inner wall of the chamber (3), the rear side of the spring (6) is fixedly connected to the front side of the square plate (4), and the outside of the connecting rod (5) is slidably connected to the inside of the square block (2).

6. The obstetric-specific fetal membrane stripping inlet device according to claim 1, characterized in that: The front end of the connecting rod (5) is fixedly connected to a pull plate (8), and the rear side of the pull plate (8) is in contact with the front side of the square block (2).

7. The obstetric-specific amniotic membrane stripping and introduction device according to claim 2, characterized in that: The outer part of gear three (18) is meshed with the outer part of gear two (15), and the outer part of the fixed rod is rotatably connected to the inside of the square block (2).

8. The obstetric-specific amniotic membrane stripping inlet device according to claim 2, characterized in that: The display (19) is rotatably connected to an indicator rod (20), the bottom end of which is fixedly connected to the top end of the transmission rod (17).

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