Safe membrane rupturing device for obstetrical department

Abstract

The utility model is applicable to the field of medical instruments, and provides a safe membrane rupture device for obstetrics, which comprises a barrel, a plurality of vent holes are arranged at the upper end of the barrel, a threaded rod is in threaded connection with the upper end of the barrel, an I-shaped ring is fixedly connected with the lower end of the threaded rod, and the I-shaped ring is rotatably connected with a connecting frame. The lower end of the connecting frame is fixedly connected with an abutting plate. A lower bottom plate is slidably connected to the inner wall of the barrel, a membrane rupture needle is fixedly connected to the lower end of the lower bottom plate and used for puncturing amniotic fluid, a middle column is fixedly connected to the upper end of the lower bottom plate, an upper bottom plate is fixedly connected to the upper end of the middle column, and a resistance assembly is arranged on the upper bottom plate in a matched mode. A plurality of symmetrical first vent grooves are formed in the lower bottom plate, a plurality of symmetrical second vent grooves are formed in the middle column, and a plurality of symmetrical third vent grooves are formed in the upper bottom plate. The amniotic fluid puncturing device has the advantages that the amniotic fluid puncturing depth is controllable, and the amniotic fluid is effectively sucked away.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical appliance field especially relates to a safe membrane rupturing device for obstetrics. BACKGROUND

[0002] At present, in the clinical practice of gynaecology and obstetrics, for the parturient with active stage uterine contraction weakness and uterine contraction difficulty, generally need to use the artificial way to help its puncture amnion, to help its production, artificial membrane rupture is the way of human intervention tearing amnion at the uterine orifice, so as to observe the color of amniotic fluid, strengthen uterine contraction, accelerate the progress of labor.

[0003] Medical staff generally adopts the blood vessel forceps to carry out the membrane rupture, in the process of membrane rupture, it is difficult to control the depth of puncturing amnion, not only the membrane rupture efficiency is low, still can cause other harm to the pregnant woman.

[0004] Therefore, in view of the above status, the urgent need to develop a safe membrane rupturing device for obstetrics to overcome the deficiency in current practical application. UTILITY MODEL CONTENT

[0005] The utility model embodiment is aimed at providing a safe membrane rupturing device for obstetrics, which aims to solve the problems raised in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A safe membrane rupturing device for obstetrics, including the cylinder, the cylinder upper end is equipped with a plurality of vent holes, the cylinder upper end is connected with the threaded rod, the threaded rod upper end is fixedly connected with the rotating disc, the threaded rod lower end is fixedly connected with the I-shaped ring, the I-shaped ring is rotatably connected with the connecting frame, and the connecting frame lower end is fixedly connected with the abutment plate;The inner wall of the cylinder is slidably connected with the lower bottom plate, the lower bottom plate lower end is fixedly connected with the membrane rupture needle, the membrane rupture needle is used for puncturing amniotic fluid, the lower bottom plate upper end is fixedly connected with the middle column, the middle column upper end is fixedly connected with the upper bottom plate, and the upper bottom plate is matched with resistance assembly;A plurality of symmetrical first vent grooves are formed in the lower bottom plate, a plurality of symmetrical second vent grooves are formed in the middle column, a plurality of symmetrical third vent grooves are formed in the upper bottom plate, and the first vent groove, the second vent groove and the third vent groove correspond, and the corresponding first vent groove, the third vent groove and the second vent groove are communicated.

[0008] Further technical scheme, the connecting frame is equipped with the connecting groove, the connecting groove is rotatably connected with the I-shaped ring, and the section of the I-shaped ring is I-shaped.

[0009] Further technical scheme, the abutment plate upper end face is fixedly connected with the snap ring, and the upper bottom plate lower end face is equipped with the clamping groove, the clamping groove is communicated with the third vent groove, and the snap ring is clamped in the clamping groove inner wall.

[0010] Further technical solutions, the card slot width is greater than the third vent width.

[0011] Further technical solutions, the resistance component includes fixed block, placement slot, pressure contact block and spring, two symmetrical fixed blocks are fixedly connected to the outer wall of the upper bottom plate, the axis of the two symmetrical fixed blocks is perpendicular to the axis between the two symmetrical third vent, the fixed block is provided with a placement slot, the pressure contact block is slidably connected to the inner wall of the placement slot, the other end of the pressure contact block is extruded to the inner wall of the cylinder, and a plurality of uniformly distributed springs are arranged between the pressure contact block and the inner wall of the placement slot.

[0012] Further technical solutions, the pressure contact block is provided with an arc surface at one end close to the inner wall of the cylinder, and the radius of the arc surface is equal to the radius of the inner wall of the cylinder.

[0013] As described above, the embodiments of the utility model have the following beneficial effects compared with the prior art:

[0014] 1. The spring always applies an elastic force to the pressure contact block in the direction close to the cylinder, then the spring always pushes the pressure contact block to extrude the inner wall of the cylinder, thereby increasing the friction between the pressure contact block and the inner wall of the cylinder, increasing the resistance received by the upper bottom plate, thereby effectively preventing the lower bottom plate, the middle column and the upper bottom plate from sliding in the cylinder due to their own gravity, i.e. preventing non-operational sliding, then the rotating disc drives the threaded rod to rotate and advance, then the threaded rod drives the abutment plate to advance through the connecting frame and the I-shaped ring, then the abutment plate extrudes the lower bottom plate to advance, then the lower bottom plate drives the membrane breaking needle to advance, the membrane breaking needle pierces the amniotic fluid, and the depth of piercing the amniotic fluid is fixed when the lower end of the lower bottom plate abuts against the lower end of the inner wall of the cylinder, thereby the depth of piercing the amniotic fluid can be controlled, and the efficiency of piercing the amniotic fluid is high.

[0015] 2. Reverse rotation of the threaded rod, the threaded rod drives the abutment plate to retreat through the I-shaped ring and the connecting frame, then the abutment plate drives the clasp to retreat, then the clasp is clamped in the card slot, thereby blocking the third vent, as the abutment plate continues to retreat, the abutment plate drives the upper bottom plate to retreat, thereby forming a negative pressure between the lower bottom plate and the inner bottom end of the cylinder, thereby sucking away the amniotic fluid.

[0016] In order to more clearly illustrate the structural features and effects of the utility model, the utility model will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is a sectional three-dimensional structure schematic diagram of the utility model;

[0019] Figure 3 It is a three-dimensional structure schematic diagram of the utility model Figure 2An enlarged perspective structural schematic view at middle A;

[0020] Figure 4 For the utility model Figure 2 An enlarged perspective structural schematic view at middle B;

[0021] Figure 5 For the utility model

[0022] Figure 6 For the utility model Figure 5 A sectional perspective structural schematic view;

[0023] Figure 7 For the utility model Figure 5 A perspective structural schematic view from another angle.

[0024] In the figure: 1, cylinder; 2, threaded rod; 3, rotating disc; 4, connecting frame; 5, I-shaped ring; 6, connecting groove; 7, lower bottom plate; 8, middle column; 9, upper bottom plate; 10, first air passage; 11, third air passage; 12, clamping groove; 13, abutment plate; 14, clamping ring; 15, air hole; 16, fixed block; 17, placing groove; 18, pressure joint; 19, spring; 20, membrane breaking needle; 21, second air passage. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and examples.It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0026] The specific implementation of the utility model is described in detail below by combining with specific examples.

[0027] As Figures 1-7As shown, this utility model embodiment provides a safe amniotic rupture device for obstetric use, including a cylindrical body 1. The upper end of the cylindrical body 1 has multiple ventilation holes 15. A threaded rod 2 is threadedly connected to the upper end of the cylindrical body 1. A turntable 3 is fixedly connected to the upper end of the threaded rod 2. An I-shaped ring 5 is fixedly connected to the lower end of the threaded rod 2. A connecting frame 4 is rotatably connected to the I-shaped ring 5. An abutment plate 13 is fixedly connected to the lower end of the connecting frame 4. A lower bottom plate 7 is slidably connected to the inner wall of the cylindrical body 1. A rupture needle 20 is fixedly connected to the lower end of the lower bottom plate 7. The rupture needle 20 is used to puncture the amniotic fluid. A central column 8 is fixedly connected to the upper end of the lower bottom plate 7. An upper base plate 9 is fixedly connected to the upper end of the intermediate column 8. A resistance component is provided on the upper base plate 9. The resistance component is used to increase the resistance encountered by the upper base plate 9 and its connected parts when sliding inside the cylinder 1, and to prevent non-operational sliding. A plurality of symmetrical first ventilation grooves 10 are opened on the lower base plate 7, a plurality of symmetrical second ventilation grooves 21 are opened on the intermediate column 8, and a plurality of symmetrical third ventilation grooves 11 are opened on the upper base plate 9. The first ventilation grooves 10, second ventilation grooves 21 and third ventilation grooves 11 correspond to each other, and the corresponding first ventilation grooves 10, third ventilation grooves 11 and second ventilation grooves 21 are connected.

[0028] Furthermore, the connecting frame 4 is provided with a connecting groove 6, which is rotatably connected to the I-shaped ring 5, and the cross-section of the I-shaped ring 5 is I-shaped.

[0029] Furthermore, a retaining ring 14 is fixedly connected to the upper end face of the abutment plate 13, and a retaining groove 12 is opened on the lower end face of the upper base plate 9. The retaining groove 12 is connected to the third ventilation groove 11, and the retaining ring 14 engages with the inner wall of the retaining groove 12.

[0030] Furthermore, the width of the slot 12 is larger than the width of the third vent slot 11, so that when the retaining ring 14 engages with the slot 12, it can completely block the third vent slot 11.

[0031] like Figure 5 and Figure 6 As shown, the resistance assembly includes a fixing block 16, a placement groove 17, a pressing block 18, and a spring 19. Two symmetrically distributed fixing blocks 16 are fixedly connected to the outer wall of the upper base plate 9, and the axis between the two symmetrical fixing blocks 16 is perpendicular to the axis between the two symmetrical third ventilation grooves 11. Each fixing block 16 is provided with a placement groove 17, and the inner wall of each placement groove 17 is slidably connected with a pressing block 18. The other end of the pressing block 18 presses against the inner wall of the cylinder 1, and multiple evenly distributed springs 19 are provided between the pressing block 18 and the inner wall of the placement groove 17.

[0032] Furthermore, the two fixing blocks 16 and the upper base plate 9 are an integral structure.

[0033] Further, the crimping block 18 is provided with an arc surface near one end of the inner wall of the barrel 1, and the radius of the arc surface is equal to the radius of the inner wall of the barrel 1.

[0034] Specifically, the spring 19 always applies an elastic force to the crimping block 18 in the direction close to the barrel 1, and then the spring 19 always pushes the crimping block 18 to extrude the inner wall of the barrel 1, thereby increasing the friction between the crimping block 18 and the inner wall of the barrel 1, and further limiting the sliding of the lower bottom plate 7, the middle column 8 and the upper bottom plate 9 along the inner wall of the barrel 1.

[0035] In the embodiment of the utility model, through the spring 19 always applies an elastic force to the crimping block 18 in the direction close to the barrel 1, and then the spring 19 always pushes the crimping block 18 to extrude the inner wall of the barrel 1, thereby increasing the friction between the crimping block 18 and the inner wall of the barrel 1, increasing the resistance received by the upper bottom plate 9, thereby effectively preventing the lower bottom plate 7, the middle column 8 and the upper bottom plate 9 from sliding in the barrel 1 due to their own gravity, that is, preventing non-operational sliding, rotating the threaded rod 2 forward by the rotating disc 3, then the threaded rod 2 drives the abutment plate 13 forward by the connecting frame 4 and the I-shaped ring 5, then the abutment plate 13 extrudes the lower bottom plate 7 to advance, then the lower bottom plate 7 drives the membrane breaking needle 20 to advance, the membrane breaking needle 20 punctures the amniotic fluid, until the lower end of the lower bottom plate 7 abuts the lower end of the inner wall of the barrel 1, at this time the depth of puncturing the amniotic fluid is fixed, thereby the depth of puncturing the amniotic fluid can be controlled, and the puncturing efficiency of the amniotic fluid is high;Reverse rotation of the threaded rod 2, the threaded rod 2 drives the abutment plate 13 to retreat by the I-shaped ring 5 and the connecting frame 4, then the abutment plate 13 drives the clamping ring 14 to retreat, then the clamping ring 14 is clamped in the clamping groove 12, thereby blocking the third air vent 11, as the abutment plate 13 continues to retreat, the abutment plate 13 drives the upper bottom plate 9 to retreat, thereby forming a negative pressure between the lower bottom plate 7 and the inner bottom end of the barrel 1, thereby sucking away the amniotic fluid.

[0036] The working principle of the utility model is: rotating the rotating disc 3, then the rotating disc 3 drives the threaded rod 2 to rotate forward, then the threaded rod 2 drives the abutment plate 13 to advance by the connecting frame 4 and the I-shaped ring 5, then the abutment plate 13 extrudes the lower bottom plate 7 to advance, then the lower bottom plate 7 drives the membrane breaking needle 20 to advance, the membrane breaking needle 20 punctures the amniotic fluid, until the lower end of the lower bottom plate 7 abuts the lower end of the inner wall of the barrel 1, then reverse rotation of the threaded rod 2, the threaded rod 2 drives the abutment plate 13 to retreat by the I-shaped ring 5 and the connecting frame 4, then the abutment plate 13 drives the clamping ring 14 to retreat, then the clamping ring 14 is clamped in the clamping groove 12, thereby blocking the third air vent 11, as the abutment plate 13 continues to retreat, the abutment plate 13 drives the upper bottom plate 9 to retreat, thereby forming a negative pressure between the lower bottom plate 7 and the inner bottom end of the barrel 1, thereby sucking away the amniotic fluid.

[0037] The above only is the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement and improvement etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An obstetric safety membrane disruptor comprising a barrel (1), characterised in that, The upper end of the barrel (1) is provided with a plurality of air holes (15), the upper end of the barrel (1) is threadedly connected with a threaded rod (2), the upper end of the threaded rod (2) is fixedly connected with a rotating disc (3), the lower end of the threaded rod (2) is fixedly connected with an I-shaped ring (5), the I-shaped ring (5) is rotatably connected with a connecting frame (4), and the lower end of the connecting frame (4) is fixedly connected with an abutting plate (13).

2. The obstetrical safety membrane rupturer according to claim 1, characterized in that A connecting groove (6) is formed in the connecting frame (4), the connecting groove (6) is rotatably connected with the I-shaped ring (5), and the cross section of the I-shaped ring (5) is in the shape of an I.

3. The obstetrical safety membrane rupturer according to claim 2, characterized in that The upper end surface of the abutting plate (13) is fixedly connected with a clamping ring (14), the lower end surface of the upper bottom plate (9) is provided with a clamping groove (12), the clamping groove (12) is in communication with the third air groove (11), and the clamping ring (14) is clamped in the inner wall of the clamping groove (12).

4. The obstetrical safety membrane rupturer according to claim 3, characterized in that The width of the clamping groove (12) is greater than that of the third air groove (11).

5. The obstetrical safety membrane rupturer according to claim 4, characterized in that The resistance assembly comprises a fixed block (16), a placing groove (17), a pressing block (18) and a spring (19). The outer wall of the upper bottom plate (9) is fixedly connected with two symmetrically distributed fixed blocks (16), the axis between the two symmetric fixed blocks (16) is perpendicular to the axis between the two symmetric third air grooves (11), the fixed blocks (16) are all provided with placing grooves (17), the inner walls of the placing grooves (17) are all slidably connected with pressing blocks (18), one end of the pressing blocks (18) is pressed against the inner wall of the barrel (1), and a plurality of uniformly distributed springs (19) are arranged between the pressing blocks (18) and the inner walls of the placing grooves (17).

6. The obstetrical safety membrane rupturer according to claim 5, characterized in that One end of the pressing block (18) close to the inner wall of the barrel (1) is provided with a curved surface, and the radius of the curved surface is equal to the radius of the inner wall of the barrel (1).

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