Apparatus for delivery assistance
By designing a delivery aid device with structures such as an elastic membrane, a spiral spring plate, and an electromagnet, the problem of silicone aging and slippage in the fetal head vacuum extractor was solved, achieving a stable traction effect on the fetal head and improving its reliability.
Patent Information
- Application Number
- PCT/CN2024/116905
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-08-13
- Filing Date
- 2024-09-04
- Publication Date
- 2026-02-19
AI Technical Summary
Existing tire head vacuum cleaners have soft silicone suction heads that are prone to aging after repeated use and high-temperature sterilization, which can cause them to slip out during negative pressure suction and reduce the effectiveness of the device.
A childbirth aid device was designed, including a main cylinder and a suction assembly. Utilizing structures such as an elastic membrane, a spiral spring plate, an electromagnet, and a locking assembly, the device maintains the stability and traction effect of the suction assembly through magnetic and mechanical forces, ensuring the smooth guidance of the fetal head.
This achieves stable deployment and traction of the attraction components, avoids slippage caused by silicone aging, and improves the reliability and efficiency of the device.
Smart Images

Figure CN2024116905_19022026_PF_FP_ABST
Abstract
Description
A delivery midwifery device TECHNICAL FIELD
[0001] The present application relates to the technical field of medical devices, more particularly to a delivery midwifery device. BACKGROUND
[0002] In the medical pain index, the pain during childbirth is only second to the burn pain, ranking second, and nearly half of the puerperae feel unbearable pain during childbirth. In order to reduce the pain of puerperae during childbirth, a fetal head aspirator is usually used to attract and guide the fetal head for a normal delivery, so as to reduce the difficulty of childbirth and shorten the production time. TECHNICAL PROBLEM
[0003] However, in order to facilitate insertion, the suction head part of the existing fetal head aspirator is usually made of soft silica gel, and the repeated use and high-temperature disinfection process after use can easily cause the silica gel to age, resulting in a decrease in the elasticity of the silica gel. At this time, the fetal head is easily slipped when being pulled by negative pressure suction, thereby reducing the use effect of the device. TECHNICAL SOLUTION
[0004] The present application provides a delivery midwifery device to solve the problem that the suction head part of the existing fetal head aspirator is usually made of soft silica gel in order to facilitate insertion, and the repeated use and high-temperature disinfection process after use can easily cause the silica gel to age, resulting in a decrease in the elasticity of the silica gel. At this time, the fetal head is easily slipped when being pulled by negative pressure suction, thereby reducing the use effect of the device.
[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:
[0006] A delivery midwifery device, comprising a main cylinder and an aspiration assembly, wherein one end of the main cylinder is provided with a through hole, and the two sides of the through hole are provided with a round corner; the aspiration assembly comprises a fixed cylinder arranged in the main cylinder, one end of the fixed cylinder is connected with an elastic membrane, the elastic membrane is provided with an expansion ring, a solenoid spring plate is arranged in the expansion ring, the two ends of the solenoid spring plate are respectively provided with a first electromagnet and a second electromagnet, and a plurality of support rods are arranged in the elastic membrane, and one end of each support rod is connected with an arc-shaped plate; one end of the fixed cylinder close to the elastic membrane is provided with an arc-shaped groove, and the arc-shaped plate is slidingly clamped in the arc-shaped groove.
[0007] Preferably, the free end of the elastic membrane is connected with a telescopic ring, and a limiting wall is arranged in the main cylinder, and the outer wall of the telescopic ring is in contact with the inner wall of the limiting wall.
[0008] Preferably, a push block is arranged at the end of the fixed cylinder away from the elastic membrane, a gas pump is fixedly connected in the fixed cylinder, one end of the gas pump is connected with an exhaust pipe, and a plurality of fan-shaped grooves are uniformly arranged on the inner side of the push block in the circumferential direction, and the exhaust pipe is in communication with all the fan-shaped grooves.
[0009] Preferably, the push block side wall is provided with an exhaust groove, the exhaust groove outer end opening is more inclined to the main cylinder than the inner end, and the push block is connected with a compression assembly through a power assembly.
[0010] Preferably, the compression assembly comprises a fixed sleeve sleeved outside the main cylinder, a pair of spacers and a pair of pull rings are arranged on both sides of the fixed sleeve, the power assembly comprises a guide rod arranged on one end of the fixed sleeve close to the push block, the guide rod is arranged through the push block, the push block side wall is connected with an extension plate, and one side of the extension plate is connected with the fixed sleeve through a telescopic rod.
[0011] Preferably, a locking assembly is arranged between the main cylinder and the fixed cylinder, a plurality of guide plates are arranged outside the fixed cylinder, a plurality of clamping plates are connected to the inner wall of the main cylinder, the guide plates are slidingly clamped on one side of the clamping plates, and the locking assembly comprises a fixed block arranged outside any one of the clamping plates, and the fixed block is clamped in a side groove arranged on the fixed sleeve.
[0012] Preferably, a stud is screwed in the fixed block, a rotating plate is coaxially connected to the top end of the stud, a locking block is arranged at the bottom end of the stud, the locking block is slidingly clamped in the fixed block, a spring is connected to the top end of the locking block, the free end of the spring is in contact with the bottom surface of the stud, and a locking groove is arranged in the corresponding guide plate of the fixed block, and the locking block is slidingly clamped in the locking groove. Beneficial effects
[0013] Principles and beneficial effects of the technical solution:
[0014] (1) The main cylinder arranged in the application can facilitate the placement of the suction assembly in the vagina of a puerpera in a folded state, and after placement, it can automatically expand to maintain the expanded shape of the elastic membrane while maintaining the characteristic of easy placement into the vaginal orifice. Before using the suction assembly, the main cylinder is inserted into the vagina of the puerpera until the expansion ring moves to the outside of the through hole. At this time, the elastic force of the spiral elastic plate will drive the elastic membrane to expand, causing the telescopic ring connected to one end of the elastic membrane to elongate to increase the opening area of the free end of the elastic membrane. At this time, the first electromagnet and the second electromagnet are attracted to maintain or expand the shape of the elastic membrane, the telescopic ring is attached to the head of the fetus, and the locking assembly is locked to fixedly connect the main cylinder and the fixed cylinder. After the elastic membrane of the fixed cylinder is tightly attached to the head of the fetus by reducing the pressure in the fixed cylinder, the power assembly is started, and the power assembly slowly moves the main cylinder and the fixed cylinder outward until the head of the fetus is sucked out to the vaginal orifice.
[0015] (2) The compression assembly provided in the application can increase the force bearing basis for the guiding process, so that the device can pull the fetus through the instrument, and when the compression assembly produces a large force causing the discomfort of the puerpera, the puerpera can reduce the force bearing by pulling the pull ring manually, and when the power assembly is started, the telescopic rod is driven to elongate, so as to increase the distance between the push block and the fixed sleeve, so as to pull the fixed sleeve outward.
[0016] (3) The locking assembly provided in the application can lock the position relationship between the main cylinder and the fixed cylinder when the fixed cylinder moves to the limit position along the main cylinder, so as to facilitate the power assembly to pull the main cylinder and the fixed cylinder outward at the same time, and when the fixed cylinder slides along the extension direction of the guide plate and the clamping plate to the position where the locking groove is aligned with the locking block, if the spring at the top end of the locking block is in the compressed state, the locking block will be clamped into the locking groove under the elastic force, and when unlocking, the stud is pulled out by rotating the rotating plate, and then the device is turned over to reset the locking block under the action of gravity, so that the locking block is separated from the locking groove. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1 is a schematic diagram of the overall structure of the application;
[0018] Fig. 2 is a schematic diagram of the structure of the application after being split;
[0019] Fig. 3 is a schematic diagram of the enlarged structure of area A in Fig. 2;
[0020] Fig. 4 is a schematic diagram of the enlarged structure of area B in Fig. 2;
[0021] Fig. 5 is a schematic diagram of the structure of the application after being cut;
[0022] Fig. 6 is a schematic diagram of the enlarged structure of area C in Fig. 5;
[0023] Fig. 7 is a schematic diagram of the enlarged structure of area D in Fig. 6;
[0024] The reference signs in the drawings of the specification include: 1, a backing plate; 2, a push block; 3, a main cylinder; 4, a pull ring; 5, a fixed cylinder; 6, a guide rod; 7, a fixed sleeve; 8, an elastic film; 9, an exhaust groove; 10, a side groove; 11, a locking groove; 12, a guide plate; 13, an outer extension plate; 14, a fixed block; 15, a clamping plate; 16, a support rod; 17, an arc plate; 18, a telescopic ring; 19, a first electromagnet; 20, a screw spring plate; 21, a second electromagnet; 22, a rotating plate; 23, a spring; 24, a stud; 25, a locking block; 26, a limiting wall; 27, a fan-shaped groove; 28, an exhaust pipe; 29, an air pump; 30, an expansion ring; 31, an arc groove; and 32, a through hole. Embodiment of the application
[0025] The application will be further described in detail below in combination with the drawings and embodiments: Embodiment:
[0026] As shown in FIG. 1 to FIG. 7, the present application provides a delivery device, which comprises a main cylinder 3 and an attracting assembly, the main cylinder 3 is provided with a through hole 32 at one end, and the both sides of the through hole 32 are provided with a round corner, which can reduce the abrasion when the attracting assembly moves through the through hole 32; the attracting assembly comprises a fixed cylinder 5 arranged in the main cylinder 3, the fixed cylinder 5 is connected with an elastic film 8 at one end, the elastic film 8 is provided with an expansion ring 30, the expansion ring 30 is provided with a screw elastic plate 20, the both ends of the screw elastic plate 20 are provided with a first electromagnet 19 and a second electromagnet 21 respectively, the elastic film 8 is provided with a plurality of supporting rods 16, the both ends of each supporting rod 16 are connected with an arc plate 17, the fixed cylinder 5 is provided with an arc slot 31 at one end close to the elastic film 8, and the arc plate 17 is slidingly clamped in the arc slot 31.
[0027] As shown in FIG. 1, FIG. 2, FIG. 4 and FIG. 6, the elastic film 8 is connected with a telescopic ring 18 at the free end, and the main cylinder 3 is provided with a limiting wall 26, and the outer wall of the telescopic ring 18 is in contact with the inner wall of the limiting wall 26.
[0028] As shown in FIG. 1 and FIG. 6, the fixed cylinder 5 is provided with a push block 2 at the end away from the elastic film 8, the fixed cylinder 5 is fixedly connected with an air pump 29, the air pump 29 is connected with an exhaust pipe 28 at one end, the inner side of the push block is uniformly provided with a plurality of fan-shaped slots 27 in the circumferential direction, and the exhaust pipe 28 is in communication with all the fan-shaped slots 27.
[0029] As shown in FIG. 1 and FIG. 3, the push block 2 is provided with an exhaust slot 9 at the side wall, and the outer end opening of the exhaust slot 9 is more deviated from the main cylinder 3 than the inner end, and the push block 2 is connected with a pressing assembly through a power assembly.
[0030] As shown in FIG. 1 to FIG. 3, the pressing assembly comprises a fixed sleeve 7 arranged outside the main cylinder 3, and a pair of spacers 1 and a pair of pull rings 4 are arranged at the both sides of the fixed sleeve 7 respectively, and the power assembly comprises a guide rod 6 arranged at one end of the fixed sleeve 7 close to the push block 2, the guide rod 6 is arranged through the push block 2, the push block 2 is connected with an extension plate 13 at the side wall, and the extension plate 13 is connected with the fixed sleeve 7 through a telescopic rod at one side.
[0031] The pressing assembly can increase the bearing basis for the guiding process, so that the device can pull the fetus through the instrument, and when the pressing assembly produces a large force to cause the discomfort of the parturient woman, the parturient woman can reduce the bearing force by pulling the pull ring 4 manually, and when the power assembly is started, the telescopic rod is elongated, so that the distance between the push block 2 and the fixed sleeve 7 is increased to pull the fixed sleeve 7 outward.
[0032] As shown in FIG. 1 to FIG. 3, the main cylinder 3 and the fixed cylinder 5 are provided with a locking assembly, a plurality of guide plates 12 are arranged outside the fixed cylinder 5, a plurality of clamping plates 15 are connected with the inner wall of the main cylinder 3, the guide plates 12 are slidingly clamped at one side of the clamping plates 15, and the locking assembly comprises a fixed block 14 arranged outside any clamping plate 15, and the fixed block 14 is clamped in a side slot 10 arranged in the fixed sleeve 7.
[0033] As shown in FIG. 2 to FIG. 4, the fixed block 14 is screwed with a stud 24, the top end of the stud 24 is coaxially connected with a rotating plate 22, the bottom end of the stud 24 is provided with a locking block 25, the locking block 25 is slidingly clamped in the fixed block 14, the top end of the fixed block 14 is connected with a spring 23, the free end of the spring 23 is in contact with the bottom surface of the stud 24, the fixed block 14 is provided with a locking groove 11 on the corresponding guide plate 12, and the locking block 25 is slidingly clamped in the locking groove 11.
[0034] The locking assembly can lock the positional relationship between the main cylinder 3 and the fixed cylinder 5 when the fixed cylinder 5 moves to the limit position in the main cylinder 3, so as to facilitate the power assembly to simultaneously move outwards to pull the main cylinder 3 and the fixed cylinder 5, when the fixed cylinder 5 slides along the extension direction of the guide plate 12 and the clamping plate 15 to the position where the locking groove 11 is aligned with the locking block 25, if the spring 23 at the top end of the locking block 25 is in a compressed state, the locking block 25 will be clamped into the locking groove 11 under the elastic force, when unlocking, rotating the rotating plate 22 to move the stud 24 outwards, and then turning the device to reset the locking block 25 under the action of gravity, so that the locking block 25 is separated from the locking groove 11.
[0035] The specific use mode and effect of the embodiment are as follows:
[0036] In the present application, the main cylinder 3 can be conveniently placed in the vagina of a puerpera in a folded state, and after being placed, it is automatically unfolded to maintain the unfolded shape of the elastic membrane and the characteristic of being easy to be placed into the vaginal orifice. Before using the suction assembly, the main cylinder 3 is first inserted into the vagina of the puerpera until the pad 1 in the compression assembly is in contact with the external genitalia of the patient. At this time, the push block 2 connected to one end of the fixed cylinder 5 is pushed, the elastic membrane 8 connected to one end of the fixed cylinder 5 and the telescopic ring 18 connected to one end of the elastic membrane 8 are moved towards the through hole, the telescopic ring 18 is shortened due to the extrusion of the limiting wall 26 during the movement, at the same time, the support rod 16 arranged in the elastic membrane 8 is retracted, and the solenoid elastic plate 20 is retracted in the expansion ring 30. When the expansion ring 30 moves out of the through hole, the elastic force of the solenoid elastic plate 20 drives the elastic membrane 8 to unfold, the telescopic ring 18 connected to one end of the elastic membrane 8 is elongated to increase the opening area of the free end of the elastic membrane 8. When the elastic membrane 8 is completely moved out of the through hole, the solenoid elastic plate 20 is unfolded to the distance between the first electromagnet 19 and the second electromagnet 21, which meets the magnetic attraction requirement. At this time, the first electromagnet 19 and the second electromagnet 21 are attracted to maintain or expand the shape of the elastic membrane 8, the telescopic ring 18 is attached to the head of the fetus, and the locking assembly is locked to fixedly connect the main cylinder 3 and the fixed cylinder 5. After the elastic membrane 8 at one end of the fixed cylinder 5 is tightly sucked to the head of the fetus by reducing the pressure in the fixed cylinder 5 through the air pump 29, the power assembly is started, and the power assembly slowly moves outwards to the main cylinder 3 and the fixed cylinder 5, until the head of the fetus is sucked out of the vaginal orifice.
[0037] The above-mentioned are only embodiments of the present application, and common technical solutions and / or common knowledge of the scheme are not described in detail. It should be pointed out that, for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the patent. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.
Claims
1. A birthing midwifery device, characterized in that: The utility model provides a kind of suction device, including main cylinder (3) and suction assembly, the main cylinder (3) one end is provided with through-hole (32), both sides of the through-hole (32) are provided with fillet, the suction assembly includes the fixed cylinder (5) being arranged in the main cylinder (3), the fixed cylinder (5) one end is connected with elastic film (8), the elastic film (8) is provided with expansion ring (30), the expansion ring (30) is provided with solenoid elastic plate (20) in, the solenoid elastic plate (20) both ends are provided with first electromagnet (19) and second electromagnet (21) respectively, the elastic film (8) is provided with multiple support rods (16) in, the support rod (16) one end is connected with arc plate (17) each, the fixed cylinder (5) is close to the elastic film (8) one end and is provided with arc slot (31), the arc plate (17) is slidably arranged in the arc slot (31).
2. A birthing midwifery device according to claim 1, wherein: The free end of the elastic film (8) is connected to a telescopic ring (18), and the main cylinder (3) is provided with a limiting wall (26) inside. The outer wall of the telescopic ring (18) is in contact with the inner wall of the limiting wall (26).
3. A birthing midwifery device according to claim 2, wherein: The fixed cylinder (5) is provided with a push block (2) away from the elastic film (8) one end, the fixed cylinder (5) is fixedly connected with a gas pump (29) inside, the gas pump (29) one end is connected with exhaust pipe (28), the push block inner side is evenly provided with fan-shaped slot (27) along the circumferential direction, the exhaust pipe (28) is in communication with all the fan-shaped slots (27) at the same time.
4. A birthing midwifery device according to claim 3, wherein: The side wall of the push block (2) is provided with an exhaust groove (9), and the outer end opening of the exhaust groove (9) is more inclined to the main cylinder (3) than the inner end. The push block (2) is connected with a pressing assembly through a power assembly.
5. A birthing device as claimed in claim 4, wherein: The pressing assembly includes a fixed sleeve (7) sleeved outside the main cylinder (3), and a pair of spacers (1) and a pair of pull rings (4) are arranged on both sides of the fixed sleeve (7). The power assembly includes a guide rod (6) arranged on the side of the fixed sleeve (7) close to the push block (2), and the guide rod (6) is arranged in the push block (2). The side wall of the push block (2) is connected with an extension plate (13), and one side of the extension plate (13) is connected with the fixed sleeve (7) through an extension rod.
6. A birthing midwifery device according to claim 5, wherein: A locking assembly is arranged between the main cylinder (3) and the fixed cylinder (5), a plurality of guide plates (12) are arranged on the outer side of the fixed cylinder (5), a plurality of clamping plates (15) are connected to the inner wall of the main cylinder (3), the guide plates (12) are slidably arranged on one side of the clamping plates (15), and the locking assembly includes a fixed block (14) arranged on the outer side of any clamping plate (15), and the fixed block (14) is arranged in the side groove (10) arranged on the fixed sleeve (7).
7. A birthing midwifery device according to claim 6, wherein: The fixed block (14) is screwed with a stud (24), the stud (24) top end is coaxially connected with a rotating plate (22), the stud (24) bottom end is provided with a locking block (25), the locking block (25) is slidingly clamped in the fixed block (14), the fixed block (14) top end is connected with a spring (23), the spring (23) free end is in contact with the stud (24) bottom surface, the fixed block (14) corresponding guide plate (12) is provided with a locking slot (11), the locking block (25) is slidingly clamped in the locking slot (11).
Citation Information
Patent Citations
Device for extracting elements from a cavity
CN101754721A
Midwifery device for medical obstetrics
CN110495935A
Vacuum suction type delivery device for obstetrics and gynecology department
CN112754628A
Obstetrical department's practise midwifery device
CN207561966U
Obstetrical midwifery device
CN210541762U