A labor analgesic and delivery-aiding device

Abstract

The present invention relates to the technical field of medical devices, and specifically to a labor analgesia and midwifery device, comprising a handle, an intermediate tube, an airbag and an inflation component, wherein one end of the handle is set as a gripping area, and the other end is set as an entry area; the intermediate tube is sleeved at the entry area and can slide along the extension direction of the handle; one end of the airbag is sealed and sleeved at the entry area, and the other end is sealed and sleeved at one end of the intermediate tube close to the entry area; the inflation component is used to inflate the inside of the airbag. During use, the entry area is first inserted into the cervix, and then the inflation component is used to inflate the inside of the airbag so that the volume of the airbag becomes larger to expand the cervix, and then the handle is moved outward to reduce the volume of the airbag, and then the intermediate tube is moved outward so that the airbag can roll along the side wall of the cervix, and then the handle and the intermediate tube are moved outward alternately until the airbag is separated from the cervix. By setting the airbag to move in a rolling manner, it is helpful to reduce the friction strength between the airbag and the side wall of the cervix and improve the experience.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a labor analgesic and delivery-aiding device. Background Art

[0002] Fetal production, also known as delivery, refers to the process of the fetus being born from the mother's uterus. This process can usually be divided into three stages: cervical dilation, fetal delivery, and placental delivery.

[0003] The cervical dilation period is the first stage of labor, which aims to prepare the fetus for passing through the birth canal. The characteristics of this stage include the onset and intensification of uterine contractions, the gradual thinning and dilation of the cervix, and the mother may feel abdominal pain or back pain. In order to reduce the pain of labor for the mother, midwifery instruments are needed to assist in cervical dilation.

[0004] Common obstetric instruments include cervical dilation balloons or cervical dilation balloon catheters, which can help accelerate the dilation of the cervix by placing an airbag in the cervix and inflating it. In related technologies, Chinese patent CN220833121U discloses an obstetrical midwifery tool, which has a first dilation balloon and a second dilation balloon whose distance from each other can be changed. When in use, the first dilation balloon and the second dilation balloon are not inflated. The tool is slowly inserted from the cervix, and the distance between the first dilation balloon and the second dilation balloon is achieved by moving the connecting shaft forward and backward. After insertion, air is inflated through the air inlet, and the two airbags expand. The expansion process will stretch the cervix. The specific inflation volume can be increased from a small amount to a large amount, allowing pregnant women to slowly adapt. The tool can be directly shifted in the inflated state to better simulate the delivery process, and the training effect is significant.

[0005] Although the above-mentioned obstetric midwifery tools can help mothers with cervical dilation training to a certain extent, it is found in actual use that when the first dilation airbag and the second dilation airbag move in the inflated state, they are not only easy to scratch the inner wall of the cervix, but also easy to cause discomfort to the mother, resulting in a poor experience. Summary of the invention

[0006] Based on this, it is necessary to provide a labor analgesia and midwifery device to address the problem of poor experience of current midwifery instruments during the midwifery process.

[0007] The above purpose is achieved through the following technical solutions:

[0008] A labor analgesia and delivery device, comprising a handle, an intermediate tube, an air bag and an inflation component, wherein one end of the handle is set as a holding area, and the other end is set as a body entry area; the intermediate tube is sleeved at the body entry area and can slide along the extension direction of the handle; one end of the air bag is sealed sleeved at the end of the body entry area, and the other end is sealed sleeved at one end of the intermediate tube close to the body entry area; the inflation component is configured to inflate the air bag;

[0009] When assistance in cervical dilation is needed, the entry area is first inserted into the cervix, and then the airbag is inflated through the inflation assembly to increase the volume of the airbag to dilate the cervix, and then the handle is moved outward to reduce the volume of the airbag, and then the middle tube is moved outward to allow the airbag to roll along the side wall of the cervix, and then the handle and the middle tube are moved outward alternately until the airbag is separated from the cervix.

[0010] Furthermore, the labor analgesia and delivery assistance device also includes an adjusting tube and a first elastic member, the adjusting tube is sleeved on the end of the handle away from the holding area and can elastically slide along the extension direction of the handle; one end of the airbag is sealingly sleeved on the end of the adjusting tube away from the holding area; the first elastic member is configured to provide a driving force for the elastic sliding of the adjusting tube.

[0011] Furthermore, the body entry area is provided with scales arranged along the extension direction of the handle; an observation window is provided at one end of the intermediate tube away from the body entry area, and the observation window is configured to be able to observe the scale; after the handle is moved outward, the intermediate tube is released, and the airbag drives the intermediate tube to move outward under the push of the cervical side wall, and then the reading corresponding to the scale is observed through the observation window, and when the reading corresponding to the scale is greater than the preset reading, the intermediate tube is moved inward and the handle is moved outward to expand the part before the cervix again.

[0012] Furthermore, the distance moved by the intermediate cylinder is a first preset distance, which is positively correlated with the difference between the indication corresponding to the scale and the preset indication; the distance moved by the handle is a second preset distance, which is negatively correlated with the difference between the indication corresponding to the scale and the preset indication.

[0013] Furthermore, the labor analgesia and delivery assistance device also includes a damping structure, which is arranged between the handle and the intermediate tube, and is used to hinder the relative movement between the handle and the intermediate tube.

[0014] Furthermore, the first elastic member includes a tension spring, and the tension spring is inserted between the handle and the adjustment tube. Under the action of the tension spring, the adjustment tube and the handle have a tendency to move away from each other.

[0015] Furthermore, the intermediate tube can slide elastically along the extension direction of the handle; the labor analgesia and delivery assistance device also includes a second elastic member, and the second elastic member is configured to provide a driving force for the elastic sliding of the intermediate tube.

[0016] Furthermore, the second elastic member includes a compression spring, which is sleeved on the handle, with one end of the compression spring being arranged on the intermediate tube and the other end being arranged on the handle. Under the action of the compression spring, the handle and the intermediate tube tend to move away from each other.

[0017] Furthermore, the inflation component includes a ventilation channel and an inflation ball. The ventilation channel is arranged in the circumferential side wall of the intermediate tube, and one end of the ventilation channel is connected to the airbag, and the other end is connected to the inflation ball.

[0018] Furthermore, an anti-slip portion is provided on the gripping area.

[0019] The beneficial effects of the present invention are:

[0020] When the labor analgesia and delivery device provided by the present invention is used, the body entry area is first inserted into the cervix, and then the airbag is inflated through the inflation component to increase the volume of the airbag to expand the cervix, and then the handle is moved outward to reduce the volume of the airbag to reduce the friction between the airbag and the side wall of the cervix, and reduce the discomfort caused by friction when the airbag is subsequently moved, and then the middle tube is moved outward to allow the airbag to roll along the side wall of the cervix. During the rolling of the airbag, the volume of the airbag is gradually restored under the action of the internal air pressure and the cervix is ​​expanded, and then the handle and the middle tube are alternately moved outward until the airbag is separated from the cervix, thereby completing the expansion of the cervix. By setting the airbag to move in a rolling manner inside the cervix, it not only helps to reduce the friction intensity between the airbag and the side wall of the cervix, but also can avoid scratching the side wall of the cervix, thereby improving the experience.

[0021] Furthermore, by providing an adjustment tube, when the airbag contacts the fetus during the process of inserting the airbag into the cervix, the elastic connection between the adjustment tube and the handle can reduce the impact on the fetus and avoid causing discomfort to the fetus.

[0022] Furthermore, by setting a scale and an observation window, after the handle is moved outward, the middle tube is loosened, and the airbag drives the middle tube to move outward under the push of the side wall of the cervix, and then the indication corresponding to the scale is observed through the observation window. When the indication corresponding to the scale is greater than the preset indication, the middle tube is moved inward and the handle is moved outward, so that the expansion of the cervix can be sensed and the part of the cervix that has not expanded well can be expanded again in time, thereby ensuring the overall expansion effect of the cervix. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a labor analgesia and delivery-aiding device provided by an embodiment of the present invention when the air bag is in a contracted state;

[0024] Figure 2 for Figure 1 The side view schematic diagram of the structure shown;

[0025] Figure 3 for Figure 2 Middle AA section view;

[0026] Figure 4 for Figure 3 A schematic diagram of the partially enlarged structure at B in the middle;

[0027] Figure 5 A schematic side view of the structure of a labor analgesia and delivery aid device provided by one embodiment of the present invention when the air bag is in an expanded state;

[0028] Figure 6 for Figure 5 A schematic diagram of the partially enlarged structure at C in the middle;

[0029] Figure 7 for Figure 5 Middle DD section view;

[0030] Figure 8 for Figure 7 The schematic diagram of the local enlarged structure at E in the middle;

[0031] Fig. 9 for Figure 5 Middle FF section view;

[0032] Fig.10 A schematic diagram of the three-dimensional structure of the intermediate cylinder of a labor analgesia and delivery assistance device provided in one embodiment of the present invention.

[0033] in:

[0034] 1. Handle; 101. Step; 11. Scale;

[0035] 2. Intermediate tube; 201. Ventilation channel; 21. Observation window; 22. Ventilation pipe;

[0036] 3. airbag; 301. first petal; 302. second petal; 31. mounting ring; 32. fixing cover;

[0037] 4. Adjustment cylinder;

[0038] 5. Extension spring;

[0039] 6. Compression spring. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned herein, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0042] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] like Figures 1 to 10 As shown, a labor analgesia and delivery aid device provided by an embodiment of the present invention is used for dilating the cervix, and is configured to include a handle 1, an intermediate tube 2, an airbag 3 and an inflation component, wherein one end of the handle 1 is configured as a holding area, and the other end is configured as an entry area; the intermediate tube 2 is sleeved at the entry area, and can slide along the extension direction of the handle 1; one end of the airbag 3 is sealedly sleeved at the end of the entry area, and the other end is sealedly sleeved at one end of the intermediate tube 2 close to the entry area; the inflation component is configured to be able to inflate the inside of the airbag 3.

[0044] Specifically in this embodiment, Figure 3 As shown, the handle 1 is configured as a round rod-shaped structure and has a step 101, and the area above the step 101 is the entry area, and the area below the step 101 is the gripping area; both ends of the intermediate tube 2 are open to facilitate sleeve connection on the handle 1; the airbag 3 is configured as a rotating body, and the cross section is configured as a C-shaped structure with two openings that are opposite and symmetrically arranged. When installed, the airbag 3 is configured so that the top is sleeved on the top of the handle 1, and the bottom is sleeved on the top of the intermediate tube 2.

[0045] When auxiliary cervical dilation is needed, the operator holds the holding area of ​​the handle 1 with one hand and the middle tube 2 with the other hand, then aligns the end of the body entry area of ​​the handle 1 with the vaginal opening of the parturient, and then approaches the parturient with both hands to insert the airbag 3, part of the middle tube 2 and part of the body entry area into the cervix, and then inflates the inside of the airbag 3 through the inflation component to increase the volume of the airbag 3 to dilate the cervix; then, the middle tube 2 is kept stationary and the handle 1 is moved outward, and the two ends of the airbag 3 are brought closer to each other to reduce the volume of the airbag 3 to reduce the pressure. The friction between the small airbag 3 and the side wall of the cervix reduces the discomfort caused by friction when the airbag 3 moves later. Then, the handle 1 is maintained, and the middle tube 2 is moved outward. The distance moved by the middle tube 2 is the same as the distance moved by the handle 1, so that the airbag 3 can roll along the side wall of the cervix. During the rolling process of the airbag 3, the volume of the airbag 3 gradually recovers under the action of the air pressure inside the airbag 3 and the cervix is ​​expanded. Then, the handle 1 and the middle tube 2 are moved outward alternately until the airbag 3 is separated from the cervix, thereby completing the expansion of the cervix. By setting the airbag 3 to move in a rolling manner inside the cervix, it not only helps to reduce the friction intensity between the airbag 3 and the side wall of the cervix, but also can avoid scratching the side wall of the cervix, which is conducive to improving the experience.

[0046] In some embodiments, in order to avoid causing damage to the fetus, the labor analgesia and delivery device is configured to also include an adjusting cylinder 4 and a first elastic member. The adjusting cylinder 4 is sleeved on the end of the handle 1 away from the gripping area, and can elastically slide along the extension direction of the handle 1; one end of the airbag 3 is sealed and sleeved on the end of the adjusting cylinder 4 away from the gripping area; the first elastic member is configured to provide a driving force for the elastic sliding of the adjusting cylinder 4.

[0047] Specifically in this embodiment, Figure 4 and Figure 8 As shown, the adjusting cylinder 4 is configured as a cylindrical structure with a closed top and an open bottom, and a T-shaped portion is coaxially arranged on the top of the handle 1. The T-shaped portion is configured to be inserted into the adjusting cylinder 4 during installation to form a piston-like structure with the adjusting cylinder 4; Fig. 9 As shown, the airbag 3 is configured to have a plurality of first petals 301 and second petals 302 alternately arranged along the circumferential direction, wherein the first petals 301 and the second petals 302 are both configured to be made of elastic material to facilitate deformation; Figure 4As shown, in order to facilitate the installation of the airbag 3 on the adjustment tube 4, the labor analgesia and delivery device is configured to also include a mounting ring 31 and a fixing cover 32, the top ends of all the first petals 301 and the second petals 302 are vertical and inserted on the top of the mounting ring 31, the bottom ends of all the first petals 301 and the second petals 302 are vertical and inserted on the middle tube 2, and the first petals 301 are more difficult to deform than the second petals 302, so that the two ends of the airbag 3 can be kept vertically arranged with the mounting ring 31 and the end of the middle tube 2 during the deformation process to avoid abnormal deformation; Figure 4 As shown, in order to facilitate the fixing of the mounting ring 31, a mounting column is coaxially and fixedly arranged on the top of the adjusting cylinder 4. The mounting ring 31 is sleeved on the mounting column during installation. An external thread is arranged on the circumferential side wall of the mounting column. An internal thread that can cooperate with the external thread is arranged on the inner circumferential wall of the fixing cover 32. The fixing cover 32 is threadedly sleeved on the mounting column during installation and abuts against the top of the mounting ring 31 to limit the mounting ring 31.

[0048] During the process of inserting the airbag 3 into the cervix, when the airbag 3 contacts the fetus, the elastic connection between the adjusting tube 4 and the handle 1 can reduce the impact on the fetus and avoid causing discomfort to the fetus.

[0049] In a further embodiment, a scale 11 arranged along the extension direction of the handle 1 is provided on the body entry area; an observation window 21 is provided at one end of the intermediate tube 2 away from the body entry area, and the observation window 21 is configured to be able to observe the scale 11; after the handle 1 is moved outward, the intermediate tube 2 is released, and the airbag 3 drives the intermediate tube 2 to move outward under the push of the side wall of the cervix, and then the reading corresponding to the scale 11 is observed through the observation window 21. When the reading corresponding to the scale 11 is greater than the preset reading, the intermediate tube 2 is moved inward and the handle 1 is moved outward to expand the part before the cervix again.

[0050] Specifically in this embodiment, Fig.10 As shown, the observation window 21 is located on the bottom peripheral wall of the intermediate tube 2 and is staggered 180 degrees from the ventilation pipe 22 .

[0051] It is understandable that the preset indication is a set value, which can be set according to individual physical differences and usage conditions.

[0052] During use, after each outward movement of the handle 1, the middle tube 2 is released, and the airbag 3 drives the middle tube 2 to move outward under the push of the cervical side wall, and then the indication corresponding to the scale 11 is observed through the observation window 21. When the indication corresponding to the scale 11 is greater than the preset indication, it means that the previous expansion degree of the cervical part is insufficient. In order to ensure the overall expansion effect of the cervix, it is set to move the middle tube 2 inward and the handle 1 outward to expand the previous part of the cervix again; when the indication corresponding to the scale 11 is less than or equal to the preset indication, the middle tube 2 is moved outward, so that the airbag 3 can roll along the cervical side wall.

[0053] In a further embodiment, the distance moved by the intermediate tube 2 is a first preset distance, which is positively correlated with the difference between the indication corresponding to the scale 11 and the preset indication; the distance moved by the handle 1 is a second preset distance, which is negatively correlated with the difference between the indication corresponding to the scale 11 and the preset indication.

[0054] Specifically in this embodiment, when the difference between the indication corresponding to the scale 11 and the preset indication is larger, it means that the degree of expansion of part of the cervix is ​​smaller. In order to ensure the overall expansion effect of the cervix, it is set that the larger the distance the middle tube 2 moves, that is, the larger the first preset distance, the smaller the distance the handle 1 moves, that is, the smaller the second preset distance, thereby making the volume of the airbag 3 smaller and the internal pressure greater, so as to improve the expansion effect.

[0055] In other embodiments, the labor analgesia and delivery assistance device is configured to further include a damping structure (not shown), which is disposed between the handle 1 and the intermediate tube 2 , and is used to hinder relative movement between the handle 1 and the intermediate tube 2 .

[0056] Specifically in this embodiment, the damping structure can be configured to include a damping rod, which is arranged parallel to the handle 1 during installation, with one end installed at the bottom of the intermediate tube 2, and the other end installed at the step 101; during use, under the damping action of the damping rod, the handle 1 and the intermediate tube 2 can both move slowly outward, thereby ensuring the physical sensation of the parturient and improving the accuracy of use.

[0057] In other embodiments, the first elastic member is configured to include a tension spring 5, which is inserted between the handle 1 and the adjustment tube 4. Under the action of the tension spring 5, the adjustment tube 4 and the handle 1 tend to move away from each other.

[0058] Specifically in this embodiment, Figure 8 As shown, the tension spring 5 is sleeved on the T-shaped portion and is inserted into the adjusting cylinder 4 at the same time. Under the action of the tension spring 5, the adjusting cylinder 4 and the handle 1 tend to move away from each other.

[0059] During use, when the airbag 3 contacts the fetus during insertion into the cervix, the handle 1 can move inward relative to the airbag 3 under the pushing action of the fetus, which not only avoids rigid collision on the fetus and causes fetal injury, but also allows the tension spring 5 to stretch and store force; when the handle 1 stops, the handle 1 moves outward under the action of the tension spring 5 to achieve calibration of the initial position.

[0060] In other embodiments, the intermediate tube 2 is configured to be able to slide elastically along the extension direction of the handle 1; the labor analgesia and delivery assistance device is configured to also include a second elastic member, and the second elastic member is configured to provide a driving force for the elastic sliding of the intermediate tube 2.

[0061] Specifically in this embodiment, the elastic connection between the intermediate tube 2 and the handle 1 enables the resistance encountered during the movement to determine the positions to which the intermediate tube 2 and the handle 1 need to be moved when the intermediate tube 2 and the handle 1 are moved respectively, thereby avoiding insufficient dilation of part of the cervix due to excessive movement of the intermediate tube 2 and the handle 1.

[0062] In a further embodiment, the second elastic member is configured to include a compression spring 6, which is sleeved on the handle 1, and one end of the compression spring 6 is arranged on the intermediate tube 2, and the other end is arranged on the handle 1. Under the action of the compression spring 6, the handle 1 and the intermediate tube 2 tend to move away from each other.

[0063] Specifically in this embodiment, Figure 1 As shown, the compression spring 6 is sleeved at the body entry area, with one end abutting against the bottom of the intermediate tube 2 and the other end abutting against the step 101 .

[0064] In other embodiments, the inflation assembly is configured to include a ventilation channel 201 and an inflation ball (not shown), wherein the ventilation channel 201 is disposed within the circumferential side wall of the intermediate tube 2, and is connected to the airbag 3 at one end and to the inflation ball at the other end.

[0065] Specifically in this embodiment, Figure 8 and Fig.10 As shown, the ventilation channel 201 is configured to include an annular portion and multiple strip portions, the annular portion is coaxially arranged in the circumferential side wall of the intermediate tube 2 and is arranged close to the bottom, the strip portion is arranged in the circumferential side wall of the intermediate tube 2 in parallel with the axis of the intermediate tube 2, and one end passes through the top end surface of the intermediate tube 2 to be connected with the airbag 3, and the other end is connected with the annular portion; a ventilation pipe 22 is arranged on the outer peripheral wall of the bottom of the intermediate tube 2, one end of the ventilation pipe 22 is connected with the annular portion, and the other end is connected with the inflatable ball, and a one-way valve is arranged on the ventilation pipe 22, which opens when the inflatable ball is squeezed to input the gas inside the inflatable ball into the airbag 3 through the ventilation pipe 22, the annular portion and the strip portion in sequence.

[0066] In other embodiments, in order to avoid damage to the fetus and the mother caused by hand slippage, an anti-slip portion is provided on the gripping area.

[0067] Specifically in this embodiment, the anti-slip portion can be configured as any one of diamond patterns, straight stripes, herringbone patterns, I-shaped patterns, washboard patterns, grass patterns, and sawtooth patterns, or a combination of at least two of them.

[0068] In other embodiments, the anti-slip portion may also be configured to include a plurality of protrusions, the shape of which may be spherical, conical, cylindrical, cubic, etc., and the protrusions may be evenly arranged on the gripping area to increase the anti-slip strength of the handle 1.

[0069] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A labor analgesia and delivery device, characterized in that: The labor analgesia and delivery device comprises a handle, an intermediate tube, an airbag and an inflation component, wherein one end of the handle is set as a holding area, and the other end is set as a body entry area; the intermediate tube is sleeved at the body entry area and can slide along the extension direction of the handle; the top end of the airbag is sealed sleeved at the end of the body entry area, and the bottom end is sealed sleeved at one end of the intermediate tube close to the body entry area; the inflation component is configured to inflate the airbag; When assisting cervical dilation is needed, the entry area is first inserted into the cervix, and then the airbag is inflated through the inflation assembly to increase the volume of the airbag to dilate the cervix, and then the handle is moved outward to reduce the volume of the airbag, and then the intermediate tube is moved outward to allow the airbag to roll along the side wall of the cervix, and then the handle and the intermediate tube are moved outward alternately until the airbag is separated from the cervix; The labor analgesia and delivery assistance device also includes an adjusting tube and a first elastic member. The adjusting tube is sleeved on the end of the handle away from the holding area and can elastically slide along the extension direction of the handle; one end of the airbag is sealingly sleeved on the end of the adjusting tube away from the holding area; the first elastic member is configured to provide a driving force for the elastic sliding of the adjusting tube.

2. The labor analgesia and delivery device according to claim 1, characterized in that: The body entry area is provided with scales arranged along the extension direction of the handle; an observation window is provided at one end of the intermediate tube away from the body entry area, and the observation window is configured to be able to observe the scale; after the handle is moved outward, the intermediate tube is released, and the airbag drives the intermediate tube to move outward under the push of the side wall of the cervix, and then the reading corresponding to the scale is observed through the observation window, and when the reading corresponding to the scale is greater than the preset reading, the intermediate tube is moved inward and the handle is moved outward to expand the part before the cervix again.

3. The labor analgesia and delivery device according to claim 2, characterized in that: The distance that the intermediate cylinder moves is a first preset distance, which is positively correlated with the difference between the indication corresponding to the scale and the preset indication; the distance that the handle moves is a second preset distance, which is negatively correlated with the difference between the indication corresponding to the scale and the preset indication.

4. The labor analgesia and delivery device according to claim 1, characterized in that: The labor analgesia and delivery assistance device further comprises a damping structure, which is disposed between the handle and the intermediate tube and is used to hinder the relative movement between the handle and the intermediate tube.

5. The labor analgesia and delivery device according to claim 1, characterized in that: The first elastic member comprises a tension spring, and the tension spring is inserted between the handle and the adjusting cylinder. Under the action of the tension spring, the adjusting cylinder and the handle have a tendency to move away from each other.

6. The labor analgesia and delivery device according to claim 1, characterized in that: The intermediate tube can slide elastically along the extension direction of the handle; the labor analgesia and delivery assistance device also includes a second elastic member, and the second elastic member is configured to provide a driving force for the elastic sliding of the intermediate tube.

7. The labor analgesia and delivery device according to claim 6, characterized in that: The second elastic member comprises a compression spring, which is sleeved on the handle, with one end of the compression spring being arranged on the intermediate tube and the other end being arranged on the handle. Under the action of the compression spring, the handle and the intermediate tube tend to move away from each other.

8. The labor analgesia and delivery device according to claim 1, characterized in that: The inflation component comprises a ventilation channel and an inflation ball. The ventilation channel is arranged in the circumferential side wall of the intermediate tube, and one end of the ventilation channel is communicated with the airbag, and the other end is communicated with the inflation ball.

9. The labor analgesia and delivery device according to claim 1, characterized in that: An anti-slip portion is arranged on the gripping area.

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