Obstetric clinical midwifery traction instrument with self-adjusting function

Abstract

This invention relates to the field of medical device technology, and in particular to an obstetric clinical midwifery traction device with adaptive adjustment function, comprising a suction cup, a traction tube, and a vaginal dilation guide module; the top of the suction cup is fixedly connected to the traction tube, and the vaginal dilation guide module is also installed on the outside of the traction tube; an air tube is installed on one side of the traction tube, and the other end of the air tube is connected to an umbilical cord protection module for protecting the umbilical cord; the other side of the traction tube is installed with the traction tube, and the other end of the traction tube is installed with a shoulder fixation module; the vaginal dilation guide module is assembled on the outside of the traction tube; after gas is filled into the guide cover, the inflatable airbag inflates and pre-fits the vaginal opening of the parturient, realizing the pre-dilation of the vaginal opening; the squeezing force generated by the vaginal opening is borne by the inflatable airbag; medical staff hold the traction tube and pull it outwards moderately to assist delivery; this structure, by sharing the pressure resistance of the vaginal opening through the inflatable airbag, can significantly reduce the traction force applied to the fetal head and effectively protect the fetus from birth injury.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a clinical obstetric traction device with adaptive adjustment function. Background Technology

[0002] The fetal vacuum extractor, a specialized obstetric traction device, is a core application of gynecological interventional instruments in assisting vaginal delivery. The device has a suction cup-like structure, primarily composed of a flexible suction cup, a negative pressure generating component, a pressure-regulating delivery line, and an operating handle. For dystocia situations such as obstructed fetal head delivery during the second stage of vaginal delivery or prolonged labor, the device uses a soft suction cup to conform to the fetal scalp, relying on controllable negative pressure to form a flexible suction fulcrum, synchronously matching the mother's uterine contractions to implement traction assistance. The accompanying pressure control unit can adjust the negative pressure threshold in real time according to the resistance of labor, fundamentally avoiding the pressure injuries to the fetal face and brain soft tissues that are easily caused by rigid clamping instruments like forceps. The overall structural design strictly adheres to obstetric and gynecological clinical safety and compatibility guidelines, possessing the outstanding advantages of convenient operation and minimal delivery trauma. It can effectively shorten the duration of the second stage of labor, alleviate the mother's labor burden, and reduce the probability of adverse delivery events such as fetal distress, making it a mainstream minimally invasive midwifery device for the clinical management of vaginal dystocia.

[0003] During clinical procedures, the suction cup for obstetric delivery flexibly conforms to the top of the fetal skull to achieve negative pressure suction, while the fetal head remains inside the birth canal. The delivery process relies on the traction force of the suction cup, combined with the mother's uterine contractions, to pull the fetal head down and out. Due to the physiological structure of the birth canal, the initial dilation of the vaginal opening is limited, and the descent of the fetal head requires continuous dilation of the vaginal opening, resulting in significant resistance throughout the delivery process. Therefore, high traction force is often required during the obstetric stage. Excessive traction force can easily lead to maternal and infant complications such as fetal scalp hematoma, scalp laceration, and soft tissue injury to the brain, indicating a significant safety concern in clinical use. Therefore, to address these issues, a clinical obstetric traction device with adaptive adjustment function is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide an obstetric clinical midwifery traction device with adaptive adjustment function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: As an optional solution to the obstetric clinical midwifery traction device with adaptive adjustment function described in this invention, the obstetric clinical midwifery traction device with adaptive adjustment function includes a suction cup, a traction tube, and a vaginal dilation guide module. The top of the suction cup is fixedly connected to a traction tube, and a vaginal dilation guide module is also installed on the outside of the traction tube. An air tube is installed on one side of the traction tube, and the other end of the air tube is connected to an umbilical cord protection module for protecting the umbilical cord. A traction tube is installed on the other side of the traction tube, and a shoulder fixation module is installed at the other end of the traction tube. The vaginal dilation guide module includes a guide cover fixed to the outside of the traction tube. An expansion airbag is fixedly connected to the bottom of the guide cover. Multiple sets of evenly distributed hollow cylinders are installed inside the guide cover. One end of each hollow cylinder is connected to a water injection pipe. A pressure measuring unit is slidably connected inside the hollow cylinder. A movable column is fixedly connected to one end of the pressure measuring unit. A guide block is fixedly connected to the other end of the movable column. A second pressure sensor is evenly distributed on the surface of the guide block. The upper surface of the guide cover has evenly distributed markings.

[0006] As an optional solution of the obstetric clinical midwifery traction device with adaptive adjustment function described in this invention, the pressure measuring unit includes a first disk, a second disk and a first pressure sensor. The outer side of the second disk is slidably connected to the inner wall of the hollow cylinder. One end of the second disk is fixedly connected to a uniformly distributed first pressure sensor. The other side of the first pressure sensor is fixedly connected to the first disk. One side of the first disk is fixedly connected to a moving column.

[0007] As an optional embodiment of the obstetric clinical midwifery traction device with adaptive adjustment function described in this invention, a spring is also provided on the outside of the moving column, one end of the spring is fixedly connected to the hollow cylinder, and the other end of the spring is in contact with the pressure measuring unit.

[0008] During clinical procedures, the suction cup for assisted delivery uses a flexible cup that conforms to the top of the fetal skull to create negative pressure suction, while the fetal head remains inside the birth canal. The assisted delivery process relies on the suction cup's traction force, combined with the mother's uterine contractions, to pull the fetal head down and out. Due to the physiological structure of the birth canal, the initial dilation of the vaginal opening is limited, and the descent of the fetal head requires continuous dilation of the vaginal opening, resulting in significant resistance throughout the delivery process. Therefore, high traction force is often required during assisted delivery. Excessive traction force can easily lead to maternal and infant complications such as fetal scalp hematoma, scalp laceration, and soft tissue injury to the brain, posing a significant safety concern in clinical use. This device is equipped with a vaginal dilation guide module on the outside of the traction tube. After gas is injected into the guide cover, the inflatable balloon inflates and pre-fits the mother's vaginal opening, achieving pre-dilation of the vaginal opening. The pressure generated at the vaginal opening is borne by the inflatable balloon, and medical staff hold the traction tube to apply appropriate traction outwards to assist delivery. This structure, by sharing the pressure resistance at the vaginal opening with the inflatable balloon, can significantly reduce the traction force applied to the fetal head, effectively protecting the fetus from birth injuries.

[0009] The inner side of the guide cover is equipped with movable columns and guide blocks. The movable columns can be extended and retracted at different positions according to the real-time labor conditions. The guide blocks are linked to complete the displacement, forming zoned support for the inflatable airbag, realizing local directional dilation of the vaginal opening of the mother, reducing the resistance of the fetal head descending, and ensuring the smooth delivery of the fetus.

[0010] As an optional solution of the obstetric clinical midwifery traction device with adaptive adjustment function described in this invention, the shoulder fixation module includes a shoulder sleeve, micro suction cups and a clamping device. The inner side of the shoulder sleeve is equipped with uniformly distributed micro suction cups, the top of the shoulder sleeve is equipped with a clamping device, and the bottom two moving ends of the clamping device are fixedly connected with clamping plates arranged in an arc shape, and the clamping plates are located inside the shoulder sleeve.

[0011] As an optional solution of the obstetric clinical midwifery traction device with adaptive adjustment function described in this invention, a third pressure sensor is installed on the inner side of both clamping plates.

[0012] As an alternative embodiment of the obstetric clinical midwifery traction device with adaptive adjustment function described in this invention, the shoulder sleeve is arched and made of flexible rubber blocks.

[0013] Shoulder entrapment is a common occurrence during childbirth. Conventional procedures only involve pulling the fetal head to deliver the body, concentrating the pulling force on the fetal neck and increasing the risk of neck injury. To address this, an auxiliary traction tube and shoulder fixation module are added to the side of the traction tube. A micro-suction cup inside the shoulder sleeve adheres to and fixes the fetal shoulder on one side. This can work in conjunction with suction cup traction or manual pulling of the fetal head to apply force simultaneously. By relying on the shoulder fixation module to distribute the force load, the pulling force on the fetal neck is significantly reduced, achieving a neck protection effect.

[0014] As an optional embodiment of the obstetric clinical midwifery traction device with adaptive adjustment function described in this invention, the umbilical cord protection module includes a hollow umbilical cord protective sleeve. One side of the umbilical cord protective sleeve is connected to the trachea. A protective plate is installed inside the umbilical cord protective sleeve. A fixed support is fixedly connected to one side of the inner side of the protective plate. A flexible support is fixedly connected to the other side of the inner side of the protective plate. A limit sleeve is provided on the outer side of the other end of the flexible support. The other end of the limit sleeve is fixedly connected to the protective plate.

[0015] As an optional embodiment of the obstetric clinical midwifery traction device with adaptive adjustment function described in this invention, wherein: the outer side of the fixed support is fixedly connected to the umbilical cord protective sleeve, the outer side of the flexible support is fixedly connected to the umbilical cord protective sleeve, and the outer side of the limiting sleeve is fixedly connected to the umbilical cord protective sleeve.

[0016] As an optional embodiment of the obstetric clinical midwifery traction device with adaptive adjustment function described in this invention, both the flexible support and the fixed support are made of flexible rubber sheets.

[0017] As an optional solution of the obstetric clinical midwifery traction device with adaptive adjustment function described in this invention, wherein: one side of the limiting sleeve is open to facilitate the movement of one end of the flexible support into the limiting sleeve, and the flexible support is arc-shaped.

[0018] If the umbilical cord is positioned anterior to the fetal head or buttocks during labor, it is easily compressed, blocking blood flow and potentially causing fetal hypoxia within a short period. The traction tube is equipped with an umbilical cord protection module that covers the umbilical cord and pushes it to the pressure point. A ring-shaped support and protection structure, consisting of a fixed support, a flexible support, and a limiting sleeve, isolates the umbilical cord from external compression, mitigating the risk of fetal hypoxia and ensuring the safety of the fetus during delivery.

[0019] Compared with the prior art, the beneficial effects of the present invention are: A vaginal dilation guide module is installed on the outside of the traction tube. After gas is injected into the guide cover, the inflatable balloon inflates and pre-fits the vaginal opening of the mother, achieving pre-dilation of the vaginal opening. The squeezing force generated at the vaginal opening is borne by the inflatable balloon, and medical staff hold the traction tube to gently pull outward to assist delivery. This structure, by sharing the pressure resistance at the vaginal opening with the inflatable balloon, can significantly reduce the traction force applied to the fetal head and effectively protect the fetus from birth injuries.

[0020] The inner side of the guide cover is equipped with movable columns and guide blocks. The movable columns can be extended and retracted at different positions according to the real-time labor conditions. The guide blocks are linked to complete the displacement, forming zoned support for the inflatable airbag, realizing local directional dilation of the vaginal opening of the mother, reducing the resistance of the fetal head descending, and ensuring the smooth delivery of the fetus.

[0021] Shoulder entrapment is a common occurrence during childbirth. Conventional procedures only involve pulling the fetal head to deliver the body, concentrating the pulling force on the fetal neck and increasing the risk of neck injury. To address this, an auxiliary traction tube and shoulder fixation module are added to the side of the traction tube. A micro-suction cup inside the shoulder sleeve adheres to and fixes the fetal shoulder on one side. This can work in conjunction with suction cup traction or manual pulling of the fetal head to apply force simultaneously. By relying on the shoulder fixation module to distribute the force load, the pulling force on the fetal neck is significantly reduced, achieving a neck protection effect.

[0022] If the umbilical cord is positioned anterior to the fetal head or buttocks during labor, it is easily compressed, blocking blood flow and potentially causing fetal hypoxia within a short period. The traction tube is equipped with an umbilical cord protection module that covers the umbilical cord and pushes it to the pressure point. A ring-shaped support and protection structure, consisting of a fixed support, a flexible support, and a limiting sleeve, isolates the umbilical cord from external compression, mitigating the risk of fetal hypoxia and ensuring the safety of the fetus during delivery. Attached Figure Description

[0023] Figure 1 A schematic diagram of the overall structure of a clinical obstetric traction device with adaptive adjustment function; Figure 2 A schematic diagram of the vaginal dilation guide module of an obstetric clinical midwifery traction device with adaptive adjustment function; Figure 3 A schematic diagram of the hollow cylinder of a clinical obstetric traction device with adaptive adjustment function; Figure 4 A schematic diagram of the pressure measurement unit of a clinical obstetric traction device with adaptive adjustment function; Figure 5 A schematic diagram of the shoulder fixation module of a clinical obstetric traction device with adaptive adjustment function; Figure 6 An exploded view of the shoulder fixation module of a clinical obstetric traction device with adaptive adjustment function; Figure 7 A schematic diagram of the umbilical cord protection module of an obstetric clinical midwifery traction device with adaptive adjustment function; Figure 8 This is a schematic diagram of the umbilical limiting sleeve, a clinical obstetric traction device with adaptive adjustment function.

[0024] In the diagram: 1-Suction cup, 2-Traction tube, 3-Vaginal dilation guide module, 301-Guide cover, 302-Inflatable airbag, 303-Hollow cylinder, 304-Water injection tube, 305-Pressure measuring unit, 3051-First disc, 3052-Second disc, 3053-First pressure sensor, 306-Moving column, 307-Guide block, 308-Spring, 309-Second pressure sensor, 310-Marking scale, 4-Traction tube, 5-Shoulder fixing module, 501-Shoulder sleeve, 502-Miniature suction cup, 503-Clamping device, 504-Clamping plate, 505-Third pressure sensor, 6-Traction tube, 7-Umbilical cord protection module, 701-Umbilical cord protection sleeve, 702-Protective plate, 703-Fixed support, 704-Flexible support, 705-Limiting sleeve. Detailed Implementation

[0025] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention provides a technical solution: A clinical obstetric traction device with adaptive adjustment function includes a suction cup 1, a traction tube 2, and a vaginal dilation guide module 3; The top of the suction cup 1 is fixedly connected to the traction tube 2. The outside of the traction tube 2 is also equipped with a vaginal dilation guide module 3. A trachea 6 is installed on one side of the traction tube 2. The other end of the trachea 6 is connected to an umbilical cord protection module 7 for protecting the umbilical cord. A traction tube 4 is installed on the other side of the traction tube 2. A shoulder fixation module 5 is installed at the other end of the traction tube 4. The vaginal dilation guide module 3 includes a guide cover 301 fixed to the outside of the traction tube 2. An expansion airbag 302 is fixedly connected to the bottom of the guide cover 301. Multiple sets of evenly distributed hollow cylinders 303 are installed inside the guide cover 301. One end of the hollow cylinder 303 is connected to a water injection pipe 304. A pressure measuring unit 305 is slidably connected inside the hollow cylinder 303. A moving column 306 is fixedly connected to one end of the pressure measuring unit 305. A guide block 307 is fixedly connected to the other end of the moving column 306. A second pressure sensor 309 is evenly distributed on the surface of the guide block 307. The upper surface of the guide cover 301 is provided with evenly distributed marking scales 310.

[0026] The pressure measuring unit 305 includes a first disk 3051, a second disk 3052, and a first pressure sensor 3053. The outer side of the second disk 3052 is slidably connected to the inner wall of the hollow cylinder 303. One end of the second disk 3052 is fixedly connected to a uniformly distributed first pressure sensor 3053, and the other side of the first pressure sensor 3053 is fixedly connected to the first disk 3051. One side of the first disk 3051 is fixedly connected to the moving column 306.

[0027] A spring 308 is also provided on the outside of the movable column 306. One end of the spring 308 is fixedly connected to the hollow cylinder 303, and the other end of the spring 308 is in contact with the pressure measuring unit 305.

[0028] During clinical procedures, the suction cup for assisted delivery uses a flexible cup that conforms to the top of the fetal skull to achieve negative pressure suction, while the fetal head remains inside the birth canal. The assisted delivery process relies on the suction cup's traction force, combined with the mother's uterine contractions, to pull the fetal head down and out. Due to the physiological structure of the birth canal, the initial dilation of the vaginal opening is limited, and the descent of the fetal head requires continuous dilation of the vaginal opening, resulting in significant resistance throughout the delivery process. Therefore, high traction force is often required during assisted delivery. Excessive traction force can easily lead to maternal and infant complications such as fetal scalp hematoma, scalp laceration, and soft tissue injury to the brain, posing a significant safety concern in clinical use. This device has a vaginal dilation guide module 3 mounted on the outside of the traction tube 2. After gas is injected into the guide cover 301, the inflatable airbag 302 inflates and pre-fits the mother's vaginal opening, achieving pre-dilation of the vaginal opening. The squeezing force generated at the vaginal opening is borne by the inflatable airbag 302, and medical staff hold the traction tube 2 to apply appropriate traction to assist delivery. This structure, through the inflatable airbag 302, shares the pressure resistance at the vaginal opening, which can significantly reduce the traction force applied to the fetal head and effectively protect the fetus from birth injuries.

[0029] The guide cover 301 is equipped with movable columns 306 and guide blocks 307. The movable columns 306 can be extended and retracted at different positions according to the real-time labor conditions. The guide blocks 307 are moved in conjunction to form zoned support for the inflatable airbag 302, so as to realize local directional dilation of the vaginal opening of the mother, reduce the resistance of the fetal head descending, and ensure the smooth delivery of the fetus.

[0030] Also includes the following: Water injection pipe 304 is installed inside traction pipe 2 and extends out from the other end of traction pipe 2 to be connected to water injection equipment. When water injection is performed, water enters the hollow cylinder 303 and squeezes the pressure measuring unit 305. At the same time, it pushes the moving column 306 on one side to move, thereby causing the guide block 307 at the other end of the moving column 306 to expand outward and contact the inflatable air bag 302 to achieve local expansion support, which is convenient to adjust according to the actual situation. The marking scale 310 set above the guide cover 301 makes it convenient to start the movement of the guide block 307 at the corresponding position. In actual operation, once the pressure detected by the pressure measuring unit 305 exceeds the set threshold, or the second pressure sensor 309 exceeds the set threshold, the water injection device will stop starting to reduce the water pressure inside the hollow cylinder 303, so as to avoid excessive compression and damage to the vaginal opening of the mother when the guide block 307 squeezes the expansion air bag 302. The outer side of the first disc 3051 is in close contact with the inner wall of the hollow cylinder 303 to ensure sealing. When it is pushed by water pressure, the first pressure sensor 3053 inside the first disc 3051 and the second disc 3052 can detect the pressure value. In actual use, if the pressure at the vaginal opening is too high, it can reduce the internal water pressure and realize the adaptive adjustment of the moving column 306.

[0031] Example 2: This example is an improvement upon Example 1. Please refer to [link / reference]. Figure 5 and Figure 6 Specifically, the shoulder fixing module 5 includes a shoulder sleeve 501, a micro suction cup 502, and a clamping device 503. The inner side of the shoulder sleeve 501 is equipped with evenly distributed micro suction cups 502, and the top of the shoulder sleeve 501 is equipped with a clamping device 503. The two moving ends at the bottom of the clamping device 503 are fixedly connected with an arc-shaped clamping plate 504, and the clamping plate 504 is located inside the shoulder sleeve 501.

[0032] A third pressure sensor 505 is installed on the inner side of each clamping plate 504 on both sides.

[0033] The shoulder cover 501 is arched and made of flexible rubber.

[0034] Shoulder entrapment is a common occurrence during childbirth. Conventional procedures only involve pulling the fetal head to deliver the body, concentrating the pulling force on the fetal neck and potentially causing neck injury. To address this, an auxiliary traction tube 4 and a shoulder fixation module 5 are added to the side of the traction tube 2. The micro-suction cup 502 inside the shoulder sleeve 501 is used to adhere and fix the fetal shoulder on one side. This can work in conjunction with the suction cup 1 to apply force simultaneously with manual traction of the fetal head. The shoulder fixation module 5 shares the load, significantly reducing the pulling force on the fetal neck and achieving neck protection.

[0035] Also includes the following: The shoulder sleeve 501 is arched to easily fit on both sides of the fetus's shoulders. It is fixed over a large area by multi-point suction cup 502 to assist in the traction of the fetus during delivery. When fixing, the clamping device 503 can drive the clamping plates 504 at both ends to come together to help clamp and fix the fetus's shoulders. The shoulder sleeve 501 is made of flexible material to avoid damage to the fetus's skin.

[0036] Example 3: This example is an improvement on Example 2. Please refer to [link / reference]. Figure 7 and Figure 8 Specifically, the umbilical cord protection module 7 includes a hollow umbilical cord protection sleeve 701. One side of the umbilical cord protection sleeve 701 is connected to the trachea 6. A protective plate 702 is installed inside the umbilical cord protection sleeve 701. A fixed support member 703 is fixedly connected to one side of the inside of the protective plate 702. A flexible support member 704 is fixedly connected to the other side of the inside of the protective plate 702. A limit sleeve 705 is provided on the outer side of the other end of the flexible support member 704. The other end of the limit sleeve 705 is fixedly connected to the protective plate 702.

[0037] The outer side of the fixed support 703 is fixedly connected to the umbilical cord protective sleeve 701, the outer side of the flexible support 704 is fixedly connected to the umbilical cord protective sleeve 701, and the outer side of the limiting sleeve 705 is fixedly connected to the umbilical cord protective sleeve 701.

[0038] Both the flexible support 704 and the fixed support 703 are made of flexible rubber sheets.

[0039] One side of the limiting sleeve 705 is open, which facilitates the movement of one end of the flexible support 704 into the limiting sleeve 705. The flexible support 704 is arc-shaped.

[0040] If the umbilical cord is positioned anterior to the fetal head or buttocks during labor, it is easily compressed, blocking blood flow and potentially causing fetal hypoxia within a short period. The traction tube 2 is equipped with an umbilical cord protection module 7, which covers the umbilical cord with a protective sleeve 701 and pushes it to the pressure point. A ring-shaped support and protection structure is formed by a fixed support 703, a flexible support 704, and a limiting sleeve 705, isolating the umbilical cord from external compression, mitigating the risk of fetal hypoxia, and ensuring the safety of the fetus during delivery.

[0041] Also includes the following: Because the flexible support 704 can be bent, it can be moved during actual operation, and then the umbilical cord is placed inside it. The other end of the flexible support 704 is located inside the limiting sleeve 705. The flexible support 704 and the fixed support 703 cooperate to support the protective plate 702, preventing it from collapsing and squeezing the umbilical cord. Furthermore, by injecting air into the protective sleeve 701, it has a certain cushioning performance when in contact with the mother's skin, preventing damage to the mother's skin. The flexible support 704 and the fixed support 703 are bent to prevent squeezing the inner umbilical cord.

[0042] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A clinical obstetric traction device with adaptive adjustment function, characterized in that: It includes a suction cup (1), a traction tube (2), and a vaginal dilation guide module (3); The top of the suction cup (1) is fixedly connected to a traction tube (2), and a vaginal dilation guide module (3) is also installed on the outside of the traction tube (2). An air tube (6) is installed on one side of the traction tube (2), and the other end of the air tube (6) is connected to an umbilical cord protection module (7) for protecting the umbilical cord. A traction tube (4) is installed on the other side of the traction tube (2), and a shoulder fixation module (5) is installed on the other end of the traction tube (4). The vaginal dilation guide module (3) includes a guide cover (301) fixed on the outside of the traction tube (2), an expansion airbag (302) fixedly connected to the bottom of the guide cover (301), and multiple sets of evenly distributed hollow cylinders (303) installed inside the guide cover (301). One end of the hollow cylinder (303) is connected to a water injection pipe (304). A pressure measuring unit (305) is slidably connected inside the hollow cylinder (303). One end of the pressure measuring unit (305) is fixedly connected to a moving column (306), and the other end of the moving column (306) is fixedly connected to a guide block (307). The surface of the guide block (307) is equipped with evenly distributed second pressure sensors (309). The upper surface of the guide cover (301) is provided with evenly distributed marking scales (310). The shoulder fixing module (5) includes a shoulder sleeve (501), a micro suction cup (502) and a clamping device (503). The inner side of the shoulder sleeve (501) is equipped with evenly distributed micro suction cups (502). The top of the shoulder sleeve (501) is equipped with a clamping device (503). The two moving ends of the bottom of the clamping device (503) are fixedly connected with a clamping plate (504) arranged in an arc shape, and the clamping plate (504) is located inside the shoulder sleeve (501).

2. The obstetric clinical midwifery traction instrument with self-adaptive adjustment function according to claim 1, characterized in that: The pressure measuring unit (305) includes a first disk (3051), a second disk (3052) and a first pressure sensor (3053). The outer side of the second disk (3052) is slidably connected to the inner wall of the hollow cylinder (303). One end of the second disk (3052) is fixedly connected to a uniformly distributed first pressure sensor (3053). The other side of the first pressure sensor (3053) is fixedly connected to the first disk (3051). One side of the first disk (3051) is fixedly connected to the moving column (306).

3. The obstetric clinical delivery traction instrument with self-adaptive adjustment function according to claim 1, characterized in that: A spring (308) is also provided on the outside of the movable column (306). One end of the spring (308) is fixedly connected to the hollow cylinder (303), and the other end of the spring (308) is in contact with the pressure measuring unit (305).

4. The obstetric clinical delivery traction instrument with self-adaptive adjustment function according to claim 1, characterized in that: A third pressure sensor (505) is installed on the inner side of each of the clamping plates (504) on both sides.

5. The obstetric clinical delivery traction instrument with self-adaptive adjustment function according to claim 1, characterized in that: The shoulder cover (501) is arched and is made of flexible rubber blocks.

6. The obstetric clinical delivery traction instrument with self-adaptive adjustment function according to claim 1, characterized in that: The umbilical cord protection module (7) includes a hollow umbilical cord protection sleeve (701). One side of the umbilical cord protection sleeve (701) is connected to the trachea (6). A protective plate (702) is installed inside the umbilical cord protection sleeve (701). A fixed support member (703) is fixedly connected to one side of the inside of the protective plate (702). A flexible support member (704) is fixedly connected to the other side of the inside of the protective plate (702). A limit sleeve (705) is provided on the outer side of the other end of the flexible support member (704). The other end of the limit sleeve (705) is fixedly connected to the protective plate (702).

7. The obstetric clinical delivery traction instrument with self-adapting function according to claim 6, characterized in that: The outer side of the fixed support (703) is fixedly connected to the umbilical cord protective sleeve (701), the outer side of the flexible support (704) is fixedly connected to the umbilical cord protective sleeve (701), and the outer side of the limiting sleeve (705) is fixedly connected to the umbilical cord protective sleeve (701).

8. The obstetric clinical midwifery traction device with adaptive adjustment function according to claim 6, characterized in that: Both the flexible support (704) and the fixed support (703) are made of flexible rubber sheets.

9. The obstetric clinical delivery traction instrument with self-adapting function according to claim 6, characterized in that: One side of the limiting sleeve (705) is open, which makes it easy for one end of the flexible support (704) to move into the limiting sleeve (705). The flexible support (704) is arc-shaped.

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