Fetal head traction device

Abstract

The present invention proposes a fetal head traction device, which relates to the medical field. A fetal head traction device includes a mesh cap, and an air bag is arranged on one side of the mesh cap that fits the human head, and the air bag is connected to an inflatable balloon through an airway. The mesh cap structure can cover the baby's head, and the air bag on its edge can be inflated. During cesarean section, when the fetal head is high and small, it is placed on the fetal head. After the air bag is inflated, it is close to the baby's scalp. With the cooperation of the assistant, the surgeon gently pulls the fetal head downward to assist the delivery of the fetal head.

Description

Technical Field

[0001] The invention relates to the medical field, and in particular to a fetal head traction device. Background Art

[0002] At present, during delivery and midwifery in obstetrics and gynecology, fetal head suction is required to ensure smooth delivery of the fetus by suctioning the fetal head. Previous fetal head suction devices used direct negative pressure difference to suction the fetal head and cooperated with traction to assist in the delivery of the fetus.

[0003] The fetal head suction device currently used in medical treatment adopts single-point adsorption, which is easy to cause scalp damage, edema, hematoma and other problems in newborns. At the same time, in long-term clinical practice, when doctors insert the fetal head suction device into the pregnant woman's vagina, the suction device head expands greatly and often splits the incision on the pregnant woman's external vagina during use, causing secondary injury to the pregnant woman and posing a danger to the pregnant woman during delivery. Summary of the invention

[0004] The purpose of the present invention is to provide a fetal head traction device, which can fix the baby's head through a balloon and use a mesh cap to pull the fetal head to assist delivery.

[0005] The embodiment of the present invention is achieved as follows:

[0006] An embodiment of the present application provides a fetal head traction device, comprising a mesh cap, wherein an air bag is arranged on one side of the mesh cap that fits the human head, and the air bag is connected to an inflatable balloon through an air guide tube.

[0007] In some embodiments of the present invention, the airbag is arranged around the opening edge of the mesh cap.

[0008] In some embodiments of the present invention, the airbag is in a ring shape.

[0009] In some embodiments of the present invention, the above also includes a clustering tube, a through hole is formed in the clustering tube, and the air guide pipe is located in the through hole.

[0010] In some embodiments of the present invention, the mesh cap is formed by cross-weaving of ropes, and the end of the mesh cap away from the airbag passes through a through hole of the cluster tube.

[0011] In some embodiments of the present invention, a section of the mesh cap that passes through the through hole is sleeved with a tightening buckle.

[0012] In some embodiments of the present invention, a negative pressure tube is also provided through the through hole, one end of the negative pressure tube extends into the mesh cap and is connected to a negative pressure suction cup, and the other end of the negative pressure tube is connected to a needle tube.

[0013] In some embodiments of the present invention, the negative pressure suction cup has an arc-shaped double-layer structure, the double-layer wall of the negative pressure suction cup is fixed by a plurality of support rods, a plurality of evenly arranged air holes are provided on the wall on one side of the negative pressure suction cup that fits the human head, and the negative pressure tube is connected to the other side wall of the negative pressure suction cup.

[0014] In some embodiments of the present invention, a silicone ring is provided on the side of the ventilation hole that is in contact with the human head.

[0015] In some embodiments of the present invention, the negative pressure suction cup is made of medical rubber.

[0016] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0017] This embodiment provides a fetal head traction device, including a mesh cap, a side of the mesh cap that fits the human head is provided with an air bag, and the air bag is connected to an inflatable balloon through an airway tube. The mesh cap structure can cover the baby's head, and the air bag on its edge can be inflated. During cesarean section, when the fetal head is high and small, it is placed on the fetal head. After the air bag is inflated, it is close to the baby's scalp. With the cooperation of the assistant, the surgeon gently pulls the fetal head downward to assist in the delivery of the fetal head.

[0018] In actual use, medical staff will cover one end of the mesh cap on the baby's head. After covering, they will press the inflated balloon to make the balloon start to inflate slowly. When the balloon fits the skin of the baby's head, it will be inflated for the last time to ensure that the balloon can fit and fix the baby's head while preventing excessive inflation of the balloon from causing damage to the skin of the baby's head. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of the tractor according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the assembly structure of the negative pressure suction cup, the negative pressure tube and the needle tube according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the negative pressure suction cup according to an embodiment of the present invention;

[0023] Figure 4 for Figure 3A local enlarged schematic diagram at L.

[0024] Icons: 1-mesh cap; 101-tightening buckle; 2-airbag; 201-air guide tube; 2011-inflatable balloon; 3-clustering tube; 4-negative pressure tube; 401-negative pressure suction cup; 501-support rod; 502-air vent; 5021-silicone ring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of the embodiments of the present invention, "plurality" means at least 2.

[0031] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Example

[0033] Please refer to Figure 1 , Figure 1 Shown is a schematic diagram of the overall structure of the tractor described in an embodiment of the present invention.

[0034] This embodiment provides a fetal head traction device, including a mesh cap 1, a side of the mesh cap 1 that fits the human head is provided with an air bag 2, and the air bag 2 is connected to an inflatable air bag 2011 through an air guide tube 201. The mesh cap structure can cover the baby's head, and the air bag 2 at its edge can be inflated, and is placed on the fetal head when the fetal head is high and small during cesarean section. After the air bag 2 is inflated, it is close to the baby's scalp, and the surgeon gently pulls the fetal head downward with the cooperation of the assistant to assist the delivery of the fetal head.

[0035] The mesh cap 1 in this embodiment is made of nylon stretch yarn and nylon elastic core-spun yarn as raw materials and interwoven on a knitting machine, and is cylindrical and grid-shaped, with good elasticity, uniform pressure and good air permeability.

[0036] Nylon, scientifically known as polyamide fiber, is a general term for polyamide fibers produced in China. It is called nylon internationally. It has high strength, abrasion resistance, and good resilience. It can be spun pure or blended into various clothing and knitwear. The main varieties are nylon 6 and nylon 66, and their physical properties are similar. Nylon has better moisture absorption and dyeing properties than polyester. It is alkali-resistant but not acid-resistant. Its fiber strength will decrease after long-term exposure to sunlight. Nylon has heat-setting properties and can maintain the bending deformation formed when heated. Nylon filaments can be made into elastic cords with rubber core, and short filaments can be blended with cotton and acrylic to improve its strength and elasticity. In addition to its application in clothing and decorations, it is also widely used in medical treatment. Its performance has the advantages of high strength and good abrasion resistance, ranking first among all fibers. Its abrasion resistance is 10 times that of cotton fiber, 10 times that of dry viscose fiber, and 140 times that of wet fiber. Therefore, its durability is excellent. Nylon DTY fabric has excellent elasticity and elastic recovery. The mesh cap 1 made of nylon stretch yarn wrapped with nylon rubber core-spun yarn has a certain elasticity and can effectively adhere to the fetal head. The sizes of babies' fetal heads are different. The elastic mesh cap 1 can be worn by babies with different fetal head sizes to ensure that the mesh cap 1 can effectively fit the head. At the same time, the surface of the nylon stretch yarn is soft and will not cause damage to the fetal head.

[0037] In the present embodiment, the airbag 2 is inflated by a manual inflation method of the airbag 2011. The manual inflation method can prevent the airbag 2 from being over-inflated and squeezing the fetal head of the baby, thereby causing pressure sores or edema. Using the inflatable balloon 2011 to press and inflate it again and again can enable medical staff to control the intensity of the inflation so that the airbag 2 can just adhere to and squeeze the fetal head of the baby a little, thereby ensuring the normal progress of subsequent traction work. A pressure relief valve is also provided at one end of the airway tube 201 located at the inflatable balloon 2011, so that medical staff can control and adjust the air pressure in the airbag 2.

[0038] In actual use, the medical staff covers one end of the mesh cap 1 on the baby's fetal head. After covering, they press the inflatable balloon 2011 to make the airbag 2 start to slowly inflate. When the airbag 2 fits the skin of the baby's fetal head, it is inflated for the last time to ensure that the airbag 2 can fit and fix the baby's fetal head while preventing the airbag 2 from being over-inflated and causing damage to the skin of the baby's fetal head.

[0039] In some embodiments of the present invention, Figure 1 As shown, the airbag 2 is arranged around the opening edge of the mesh cap 1. The opening edge of the mesh cap 1 that fits the fetal head of the baby is arranged as the airbag 2, and the opening edge of the mesh cap 1 is connected to the top of the airbag 2, ensuring that the airbag 2 can effectively contact the fetal head of the baby and improve adhesion.

[0040] In the above embodiment, the opening edge of the mesh cap 1 is connected to the wall surface of the fetal head and the outer wall of the airbag 2 to ensure that the airbag 2 can effectively contact the fetal head of the baby and improve the adhesion.

[0041] In some embodiments of the present invention, Figure 1 As shown, the airbag 2 is in a ring shape. The airbag 2 is arranged in a ring shape so that the fetal head of the baby can be sleeved at the center notch thereof, and the mesh cap 1 can be more conveniently sleeved on the baby's head. When assembling the mesh cap 1, the airbag 2 can be first inflated with a small amount of air to form the airbag 2. At this time, the opening of the mesh cap 1 is stretched open, which is convenient for placing the fetal head of the baby therein. The medical staff can more conveniently adjust the installation position of the mesh cap 1 and the fetal head of the baby, thereby ensuring the safety of use.

[0042] The airbag 2 in the above embodiment can adopt a plurality of arc-shaped airbags 2 which are connected in sequence at the ends, and the plurality of arc-shaped airbags 2 form a circular ring shape. The use of a plurality of arc-shaped airbags 2 which are connected in sequence can reduce the corresponding manufacturing cost. Similarly, when assembling the mesh cap 1, the airbag 2 can be first inflated with a small amount of air to form the airbag 2. At this time, the opening of the mesh cap 1 is stretched open, which is convenient for placing the baby's fetal head therein. Medical staff can more conveniently adjust the corresponding installation position of the mesh cap 1 and the baby's fetal head, thereby ensuring safety of use.

[0043] In some embodiments of the present invention, Figure 1 As shown, it also includes a clustering tube 3, in which a through hole is opened, and the air guide pipe 201 is located in the through hole.

[0044] The cluster tube 3 in this embodiment is cylindrical, and three through holes are opened along the axis direction and around the axis of the cluster tube 3. The air guide tube 201 connected to the airbag 2 is located in the first through hole for fixing. The cluster tube 3 can separate the internal operation part and the external operation part. The inflated airbag 2011 is separated from the outside by the cluster tube 3, so that it cannot contact the parturient, and the bacteria in the external environment of the wall surface can not invade the parturient body, which greatly improves the sanitation and safety. At the same time, the cluster tube 3 is made of medical PP, and the cluster tube 3 made of medical PP can be sterilized before and after use, which ensures the safety of the device and prolongs the service life of the device.

[0045] In some embodiments of the present invention, Figure 1 As shown, the mesh cap 1 is made of cross-woven ropes, and one end of the mesh cap 1 away from the airbag 2 passes through the through hole of the cluster tube 3.

[0046] The mesh cap 1 in this embodiment has a certain elasticity. It is woven into a mesh with nylon stretch yarn and nylon rubber core-spun yarn as raw materials, has a low manufacturing cost, is easy to sterilize, and can be mass-produced and put into use. The top of the mesh cap 1 is open. The mesh cap 1 includes mutually perpendicular ropes connected to the top of the airbag 2 and a plurality of sleeved annular ropes in a ring shape for fixing all vertical ropes. The annular ropes and the vertical ropes are fixed at the joint with double-sided buckles made of PP. The tops of the ropes connected to the airbag 2 are bundled, and one end of the bundle passes through the second through hole of the bundling tube 3. The components passing through the bundling tube 3 are separated into different through holes to ensure the independent operability of the components and avoid entanglement of the components, which may cause the operation of the device to be not smooth during operation.

[0047] In actual use, when guiding the baby, first, the mesh cap 1 is covered on the baby's fetal head and the airbag 2 is inflated and fixed. After this operation is completed, the mesh cap 1 is likely to stretch outside the body. When adjusting, the medical staff generally use the end of the mesh cap 1 extending outside the body. The control point of the stretched mesh cap 1 is elongated, which reduces the medical staff's control over the position of the baby's fetal head. The clustering tube 3 is moved toward the side of the baby's head to shrink the mesh cap 1, and then the control point of the mesh cap 1 is moved to the side of the fetal head, thereby increasing the control accuracy of the medical staff in guiding the baby. At the same time, the clustering tube 3 will shrink the mesh cap 1 when moving, so that the mesh cap 1 can fit the baby's fetal head better, so that the mesh cap 1 can be easily covered with the fetal heads of babies of different sizes.

[0048] In some embodiments of the present invention, Figure 1 As shown, a section of the mesh cap 1 that passes through the through hole is sleeved with a tightening buckle 101. The end of the top of the mesh cap 1 that has been bundled and passes through the second through hole of the bundling tube 3 is clamped with a tightening buckle 101. The setting of the tightening buckle 101 can ensure that the bundling end of the mesh cap 1 will not fall out of the second through hole when the mesh cap 1 is in operation. At the same time, when the medical staff adjusts the control point to shrink the mesh cap 1, they can push the shrinking buckle toward one end of the bundling tube 3 so that the bundling end of the mesh cap 1 will not move. This operation allows the medical staff to get rid of the restraint of their hands and adjust the position of the fetal head with one hand, which can greatly reduce the consumption of manpower. At the same time, other inspections or guiding operations can be performed during guidance.

[0049] In some embodiments of the present invention, Figure 2As shown, a negative pressure tube 4 is also provided through the through hole, one end of the negative pressure tube 4 extends into the mesh cap 1 and is connected to a negative pressure suction cup 5, and the other end of the negative pressure tube 4 is connected to a needle tube 401. A negative pressure tube 4 is installed through the third through hole of the clustering tube 3. The negative pressure tube 4 is used to attract and guide air. A negative pressure suction cup 5 is connected to the bottom of the negative pressure tube 4. The negative pressure suction cup 5 fits the baby's head up to facilitate attachment and attraction, and there will be no incomplete attachment or insufficient attraction. A needle tube 401 is arranged on the top of the negative pressure tube 4. The end of the needle tube 401 is sleeved with the tube body of the negative pressure tube 4 to achieve sealing. In actual operation, the fetal head of some babies is larger or smaller. If only the mesh cap 1 is used to fix and guide, the guidance will be not smooth or the guiding position will be offset. At this time, the negative pressure suction cup 5 is used to fit the baby's fetal head, and the needle tube 401 is used to evacuate air so that the negative pressure suction cup 5 can suck the baby's head, and the position of the negative pressure suction cup 5 is adjusted by the negative pressure tube 4 to drive the position of the baby's head to be adjusted.

[0050] In this embodiment, the manual needle tube 401 is used to replace the automatic negative pressure suction device to ensure that the suction force of the negative pressure suction cup 5 is not too large during the adsorption operation, which will cause damage to the fetal head of the baby, edema, hematoma and other problems. The needle tube 401 is used to perform small-stage air extraction, which is convenient for medical staff to adjust the adsorption strength and ensure safety. The wall of the needle tube 401 is provided with corresponding scales, so that medical staff can better control the absorption strength. The negative pressure tube 4 in this embodiment is made of medical PP. Medical PP plastic has high transparency, good barrier and radiation resistance, so that it has a wide range of applications in medical equipment and packaging industry. Non-PVC material with PP plastic as the main body is a substitute for PVC material that is currently widely used. PP plastic is colorless, odorless, and non-toxic, and is safer to use on this device. It looks like polyethylene, but is more transparent and lighter than polyethylene, and its use cost is low. PP plastic is a semi-crystalline material with a high melting point and good heat resistance. It can be disinfected and sterilized at temperatures above 100°C. After the guiding operation, it can be disinfected and reused, extending the service life of the device and reducing the use cost. The needle tube 401 is also made of medical PP, and the needle tube 401 adopts a large-size needle tube 401, so that it has a larger space for controlling the adsorption force.

[0051] In some embodiments of the present invention, Figures 2 to 4As shown, the negative pressure suction cup 5 has an arc-shaped double-layer structure, and the double-layer wall of the negative pressure suction cup 5 is fixed by a plurality of support rods 501. A plurality of evenly distributed air holes 502 are provided on the wall on one side of the negative pressure suction cup 5 that fits the human head, and the negative pressure tube 4 is connected to the other side wall of the negative pressure suction cup 5. The negative pressure suction cup 5 is structured with two layers of wall surfaces, and the edges of the two layers of wall surfaces are sealed and connected to form a hollow cavity. A number of support rods 501 made of medical PP are used between the two layers of wall surfaces to hold the two layers of wall surfaces apart. A connecting hole is provided on the top wall surface, and this connecting hole is used to sleeve the end portion of the negative pressure tube 4 to achieve sealing and fixation. When the needle tube 401 is used for suction, the two layers of wall surfaces will not be tightly attached under the action of the support rod 501. At the same time, the several air holes 502 on the bottom wall surface are adsorbed at the same time, so that the negative pressure suction cup 5 can fix the fetal head of the baby. At the same time, the setting of the several air holes 502 can ensure the diffusion of the adsorption points. The single-point adsorption force can easily cause hematoma to the fetal head of the baby. The use of multi-point adsorption can reduce the adsorption pressure at the same point and avoid damage to the fetal head.

[0052] In some embodiments of the present invention, Figure 4 As shown, a silicone ring 5021 is provided on one side of the air vent 502 that fits the human head.

[0053] The air vent 502 of the present invention is arranged in a truncated cone shape, which can increase the adsorption area and diffuse the adsorption force, and can prevent the problem of hematoma caused by the small hole adsorbing too small an area on the baby's fetal head. The edges of the truncated cone hole are chamfered, and the large-diameter end of the truncated cone hole is adsorbed toward the baby's fetal head, and a silicone ring 5021 is arranged at the large-diameter end. Silicone rubber is a polymer medical material with excellent performance. It is used as an artificial material for medical use. It has a relatively low cost and great practicality. It is a fairly stable inert substance that can withstand high temperatures and can be sterilized. The silicone ring 5021 can play the role of adsorption buffer between the negative pressure suction cup 5 and the baby's fetal head. When the adsorption operation is performed, the rubber ring is deformed by force and fits tightly against the baby's fetal head, and can also play a sealing role, avoiding the problem of adsorption damage caused by excessive adsorption force due to direct contact between the air vent 502 and the baby's fetal head.

[0054] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the negative pressure suction cup 5 is made of medical rubber. The medical rubber has a certain degree of softness, which can prevent the wound of the mesh cap 1 from being split when it is placed in the vaginal opening of the pregnant woman, making the pregnant woman safer during the delivery process. At the same time, the use of medical rubber is safer and can also be used for early and late cleaning and sterilization, so that it can be used multiple times, reducing the corresponding use cost.

[0055] In summary, the embodiment of the present invention provides a fetal head traction device, including a mesh cap 1, a side of the mesh cap 1 that fits the human head is provided with an air bag 2, and the air bag 2 is connected to an inflatable air bag 2011 through an air guide tube 201. The mesh cap structure can cover the baby's head, and the air bag 2 at its edge can be inflated, and is placed on the fetal head when the fetal head is high and small during cesarean section. After the air bag 2 is inflated, it is close to the baby's scalp, and the surgeon gently pulls the fetal head downward with the cooperation of the assistant to assist the delivery of the fetal head.

[0056] In actual use, the medical staff covers one end of the mesh cap 1 on the baby's fetal head. After covering, they press the inflatable balloon 2011 to make the airbag 2 start to slowly inflate. When the airbag 2 fits the skin of the baby's fetal head, it is inflated for the last time to ensure that the airbag 2 can fit and fix the baby's fetal head while preventing the airbag 2 from being over-inflated and causing damage to the skin of the baby's fetal head.

[0057] The inflatable balloon 2011 in the present invention can be replaced by an automatic inflation device, and the needle tube 401 can be replaced by an automatic negative pressure suction tube device. Medical staff can freely choose to use them according to the on-site situation, making the device more practical.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fetal head traction device, characterized in that: It comprises a mesh cap, wherein an air bag is arranged on one side of the mesh cap that fits the human head, and the air bag is connected to an inflatable air bag through an air guide tube; The air bag is arranged around the opening edge of the mesh cap; The airbag is in a ring shape; It also includes a clustering tube, wherein a through hole is formed in the clustering tube, and the air guide pipe is located in the through hole; The mesh cap is made of cross-woven ropes, and one end of the mesh cap, away from the airbag, passes through a through hole of the cluster tube; A section of the mesh cap that passes through the through hole is sleeved with a tightening buckle; A negative pressure tube is also provided through the through hole, one end of the negative pressure tube extends into the mesh cap and is connected to a negative pressure suction cup, and the other end of the negative pressure tube is connected to a needle tube; The negative pressure suction cup has an arc-shaped double-layer structure, and the double-layer wall surfaces of the negative pressure suction cup are fixed by a plurality of support rods. A plurality of evenly arranged air holes are provided on the wall surface of the negative pressure suction cup that is in contact with the human head, and the negative pressure tube is connected to the other side wall surface of the negative pressure suction cup; A silicone ring is provided on the side of the vent hole that fits the human head; The negative pressure suction cup is made of medical rubber.

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