CN215606158U - Obstetrical suction cup midwifery device - Google Patents
Obstetrical suction cup midwifery device Download PDFInfo
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- CN215606158U CN215606158U CN202121354846.7U CN202121354846U CN215606158U CN 215606158 U CN215606158 U CN 215606158U CN 202121354846 U CN202121354846 U CN 202121354846U CN 215606158 U CN215606158 U CN 215606158U
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Abstract
The utility model discloses an obstetrical suction cup delivery assisting device, and aims to provide an obstetrical suction cup delivery assisting device which can effectively solve the problem that in the delivery assisting process of the obstetrical suction cup delivery assisting device in the prior art, the delivery assisting pull-out force is completely judged and controlled by an operator according to experience, and the delivered fetus is damaged due to the fact that the delivery assisting pull-out force is large. It includes handheld cylinder body, be located the first compression spring who holds the cylinder body, the piston post that slides and set up in handheld cylinder body, two first sealing washers of setting on the piston post, the sucking disc installation pole of setting in piston post one end, the negative pressure joint of setting at the piston post other end, the sucking disc of setting at the tip of sucking disc installation pole, the negative pressure passageway of setting in the piston post, the outer release through-hole of setting on the lateral wall of handheld cylinder body and the interior release through-hole of setting on the lateral surface of piston post.
Description
Technical Field
The utility model relates to a midwifery device, in particular to a sucking disc midwifery device for an obstetrical department.
Background
In the process of delivery, an obstetrical suction cup delivery assisting device is often used for assisting delivery, so that the delivery time is shortened, and the discomfort of a parturient is reduced. The current obstetrical suction cup midwifery device mainly comprises a hollow holding cylinder, a suction cup arranged at one end of the holding cylinder and a negative pressure hose connected with the other end of the holding cylinder, wherein a negative pressure switch valve is arranged on the holding cylinder; in actual use, the head of the fetus is covered by the sucker, and then the negative pressure switch valve is opened to enable the sucker to suck the head of the fetus; then the holding cylinder is slowly pulled out, so that the fetus is pulled out, and the midwifery is realized. The current obstetrical suction cup midwifery device has the following defects that in the midwifery process of the obstetrical suction cup midwifery device, an operator applies the holding cylinder to pull out the midwifery force of a fetus, and the size of the midwifery force is completely judged and controlled by the operator according to experience; the problem that the delivered fetus is damaged due to the fact that the auxiliary delivery pull-out force is large easily occurs because the delivered fetus is very weak.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide the obstetric suction cup delivery assisting device which can effectively solve the problem that the delivery assisting pull-out force is judged and controlled by an operator according to experience in the delivery assisting process of the obstetric suction cup delivery assisting device in the prior art, and the delivered fetus is damaged due to the fact that the delivery assisting pull-out force is large.
The technical scheme of the utility model is as follows:
a sucking disc midwifery device for obstetrical department comprises a handheld cylinder body, a first compression spring positioned in the handheld cylinder body, a piston column arranged in the handheld cylinder body in a sliding mode, two first sealing rings arranged on the piston column, a sucking disc installation rod arranged at one end of the piston column, a negative pressure joint arranged at the other end of the piston column, a sucking disc arranged at the end part of the sucking disc installation rod, a negative pressure channel arranged in the piston column, an outer release through hole arranged on the side wall of the handheld cylinder body and an inner release through hole arranged on the outer side surface of the piston column, wherein the front end of the handheld cylinder body is provided with a front end through hole, the rear end of the handheld cylinder body is provided with a rear end through hole, the sucking disc installation rod penetrates through the front end through hole, the sucking disc is positioned on the outer side of the handheld cylinder body, the negative pressure joint penetrates through the rear end through hole, and a switch valve is arranged on the negative pressure joint; one end of the negative pressure channel is communicated with the sucker, the other end of the negative pressure channel penetrates through the piston column and is communicated with the negative pressure joint, the inner release through hole is positioned between the two first sealing rings and is communicated with the negative pressure channel, the first compression spring is positioned between the front end of the handheld cylinder body and the piston column, the piston column is supported at the rear end of the handheld cylinder body under the action of the first compression spring, and when the piston column is supported at the rear end of the handheld cylinder body, the two first sealing rings and the rear end of the handheld cylinder body are positioned on the same side of the outer release through hole.
The obstetric suction cup midwifery device is specifically used in the scheme that the negative pressure hose is connected with the negative pressure connector to provide negative pressure for the obstetric suction cup midwifery device; in the delivery assisting process, the head of the fetus is covered by the sucker, and then the switch valve is opened to enable the sucker to suck the head of the fetus; then an operator holds the hand-held cylinder body and slowly pulls out the hand-held cylinder body, so that a fetus is pulled out, and midwifery is realized.
Preferably, when the piston post abuts against the rear end of the hand cylinder, the distance between the outer relief through hole and a first sealing ring adjacent to the outer relief through hole is less than 5 cm in the axial direction of the hand cylinder.
Preferably, the hand-held cylinder further comprises a cutting and locking device, the cutting and locking device comprises a radial valve hole arranged on the outer side surface of the piston column, a valve column arranged in the radial valve hole in a sliding manner, an ejector rod arranged at one end of the valve column, an inner limiting block arranged on the side wall of the radial valve hole, a second compression spring positioned in the radial valve hole and an ejector rod accommodating hole arranged on the inner wall of the hand-held cylinder body,
the radial valve hole extends along the radial direction of the piston column, the radial valve hole and the ejector rod accommodating hole are both positioned between the two first sealing rings, the radial valve hole is communicated with the negative pressure channel, the radial valve hole and the negative pressure channel are in crossed distribution, the inner diameter of the radial valve hole is larger than that of the negative pressure channel, the second compression spring, the valve column and the inner limiting block are sequentially distributed from the bottom surface of the radial valve hole to the orifice direction of the radial valve hole, the ejector rod and the orifice of the radial valve hole are positioned on the same side of the valve column, the orifices of the inner limiting block and the radial valve hole are positioned on the same side of the intersection port of the negative pressure channel and the radial valve hole,
when the piston column abuts against the rear end of the handheld cylinder body, the end part of the ejector rod abuts against the inner wall of the handheld cylinder body, the bottom surfaces of the valve column and the radial valve hole are located on the same side of an intersection port of the negative pressure channel and the radial valve hole, and the radial valve hole is located between the ejector rod accommodating hole and the rear end of the handheld cylinder body;
when the ejector rod is aligned with the ejector rod accommodating hole, the ejector rod extends into the ejector rod accommodating hole under the action of the second compression spring until the valve column abuts against the inner limiting block, and the outer release through hole is positioned between the two first sealing rings; when the valve column abuts against the inner limiting block, the valve column blocks an intersection of the negative pressure channel and the radial valve hole.
The cutting and locking device of the scheme specifically works as follows, in the midwifery process, if the midwifery pull-out force of an operator pulling out a fetus is greater than a set value, when the hand-held cylinder body moves backwards relative to the sucker mounting rod, and the hand-held cylinder body moves backwards relative to the sucker mounting rod by a set distance, so that the ejector rod is aligned with the ejector rod accommodating hole, the ejector rod extends into the ejector rod accommodating hole under the action of the second compression spring until the valve post abuts against the inner limiting block, and at the moment, the outer release through hole is positioned between the two first sealing rings, so that the outside air enters the negative pressure channel; the valve column blocks the intersection port of the negative pressure channel and the radial valve hole, and cuts off the negative pressure source of the negative pressure channel; thereby ensuring that the sucker releases the head of the fetus at the moment, and avoiding the problem that the parturited fetus is damaged due to large force for assisting delivery in the process of assisting delivery. On the other hand, because the ejector pin stretches into the ejector pin accommodating hole, the relative position of the handheld cylinder body and the piston column is locked, and the damage to the fetus caused by the fact that the handheld cylinder body and the piston column move relatively suddenly under the action of the first compression spring after the head of the fetus is released by the sucker is avoided.
Preferably, the outer side face of the handheld cylinder body is provided with a push rod through hole communicated with the push rod accommodating hole, the inner diameter of the push rod through hole is smaller than that of the push rod accommodating hole, a sliding push rod is arranged in the push rod through hole, a second sealing ring is arranged between the sliding push rod and the push rod through hole, the end part of the sliding push rod is provided with an end part limiting block, and the end part limiting block is located in the push rod accommodating hole. So, after the ejector pin stretched into to the ejector pin accommodation hole, can be through the push rod that slides to inwards pushing out the ejector pin from the ejector pin accommodation hole, the ejector pin is from the downthehole back of pushing out of ejector pin accommodation, and the piston post supports the rear end at handheld cylinder body under first compression spring's effect, so that obstetrical department's sucking disc practise midwifery device's reuse.
Preferably, the end face, facing the inner wall of the handheld cylinder body, of the ejector rod is provided with a ball, and the ball abuts against the inner wall of the handheld cylinder body.
Preferably, the outer side surface of the sucker mounting rod is provided with a limiting convex strip extending along the axial direction of the handheld cylinder body, the inner side surface of the front end opening is provided with a limiting groove matched with the limiting convex strip, and the limiting convex strip is matched with the limiting groove. Therefore, the sucker mounting rod and the piston column can be prevented from rotating relative to the handheld cylinder body.
Preferably, two first sealing washer mounting grooves that are equipped with on the lateral surface of piston post, two first sealing washers one-to-one install on the first sealing washer mounting groove that corresponds.
Preferably, the negative pressure hose is used for providing negative pressure, and the negative pressure hose is connected with the negative pressure joint.
The utility model has the beneficial effects that: the problem that the delivery assisting force is large and the delivery fetus is damaged due to the fact that the delivery assisting force is judged and controlled by an operator according to experience in the delivery assisting process of the obstetrical sucker delivery assisting device in the prior art can be effectively solved.
Drawings
Fig. 1 is a schematic structural view of the obstetric suction cup midwifery device of the utility model.
Fig. 2 is a partial enlarged view of a portion a of fig. 1.
In the figure:
the hand-held cylinder body 1 is provided with a front end through hole 1.1, a rear end through hole 1.2 and an outer release through hole 1.3;
the piston column 2, the first sealing ring 2.1 and the inner release through hole 2.2;
a sucker mounting rod 3;
a negative pressure joint 4 and a switch valve 4.1;
a suction cup 5;
a negative pressure channel 6;
a first compression spring 7;
a negative pressure hose 8;
the device comprises a cutting and locking device 9, a radial valve hole 9.1, a valve column 9.2, a second compression spring 9.3, a push rod 9.4, an inner limiting block 9.5, a push rod accommodating hole 9.6, a sliding push rod 9.7 and an end limiting block 9.8.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present scheme, and are not construed as limiting the scheme of the present invention.
These and other aspects of embodiments of the utility model will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the utility model have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the utility model may be practiced, but it is understood that the scope of the embodiments of the utility model is not limited thereby. On the contrary, the embodiments of the utility model include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: as shown in fig. 1, a suction cup midwifery device for obstetrical department, comprising a handheld cylinder body 1, a first compression spring 7 positioned in the handheld cylinder body, a piston post 2 slidingly arranged in the handheld cylinder body, two first sealing rings 2.1 arranged on the piston post, a suction cup mounting rod 3 arranged at one end of the piston post, a negative pressure joint 4 arranged at the other end of the piston post, a suction cup 5 arranged at the end of the suction cup mounting rod, a negative pressure channel 6 arranged in the piston post, an outer release through hole 1.3 arranged on the side wall of the handheld cylinder body and an inner release through hole 2.2 arranged on the outer side surface of the piston post.
The front end of the hand-held cylinder body is provided with a front end through opening 1.1, and the rear end of the hand-held cylinder body is provided with a rear end through opening 1.2. The sucker mounting rod penetrates through the front end through opening, and the sucker is located on the outer side of the handheld cylinder body. The negative pressure joint passes through the rear end opening. The negative pressure joint is provided with a switch valve 4.1.
One end of the negative pressure channel is communicated with the sucker, and the other end of the negative pressure channel penetrates through the piston column and is communicated with the negative pressure joint. The inner release through hole is positioned between the two first sealing rings and communicated with the negative pressure channel. The first compression spring is located between the front end of the hand-held cylinder body and the piston column. The piston post is propped against the rear end of the handheld cylinder body under the action of the first compression spring.
As shown in fig. 1, when the piston post abuts against the rear end of the hand-held cylinder body, the two first sealing rings and the rear end of the hand-held cylinder body are located on the same side of the outer release through hole.
The obstetric suction cup midwifery device is specifically used in the embodiment that the negative pressure hose is connected with the negative pressure connector to provide negative pressure for the obstetric suction cup midwifery device; in the delivery assisting process, the head of the fetus is covered by the sucker, and then the switch valve is opened to enable the sucker to suck the head of the fetus; then an operator holds the hand-held cylinder body and slowly pulls out the hand-held cylinder body, so that a fetus is pulled out, and midwifery is realized.
Specifically, as shown in fig. 1, the obstetric suction cup midwifery device further comprises a vacuum generating device and a negative pressure hose 8 for providing negative pressure. One end of the negative pressure hose is connected with the negative pressure joint, and the other end of the negative pressure hose is connected with the vacuum generating device. In this embodiment, the suction cup is bowl-shaped. In the delivery assisting process, after the head of the fetus is covered by the sucker, the head of the fetus is sucked by the sucker by opening the switch valve.
When the piston post is abutted against the rear end of the handheld cylinder body, the distance between the outer release through hole and one first sealing ring adjacent to the outer release through hole is less than 5 cm in the axial direction of the handheld cylinder body, and in the embodiment, when the piston post is abutted against the rear end of the handheld cylinder body, the distance between the outer release through hole and one first sealing ring adjacent to the outer release through hole is 2 cm in the axial direction of the handheld cylinder body.
In this embodiment, the suction cup is bowl-shaped; two first sealing washer mounting grooves that are equipped with on the lateral surface of piston post, two first sealing washer one-to-one install on the first sealing washer mounting groove that corresponds.
Furthermore, the lateral surface of sucking disc installation pole is equipped with along the spacing sand grip of the axial extension of handheld cylinder body, be equipped with on the front end medial surface of crossing with spacing sand grip complex spacing groove, spacing sand grip and spacing groove cooperation. Therefore, the sucker mounting rod and the piston column can be prevented from rotating relative to the handheld cylinder body.
Further, as shown in fig. 1 and 2, the obstetric suction cup midwifery device further comprises a cutting and locking device 9. The cutting and locking device comprises a radial valve hole 9.1 arranged on the outer side surface of the piston column, a valve column 9.2 arranged in the radial valve hole in a sliding mode, an ejector rod 9.4 arranged at one end of the valve column, an inner limiting block 9.5 arranged on the side wall of the radial valve hole, a second compression spring 9.3 located in the radial valve hole and an ejector rod accommodating hole 9.6 arranged on the inner wall of the handheld cylinder body. The radial valve hole extends in the radial direction of the piston post. Radial valve hole and ejector pin accommodation hole all are located between two first sealing washers. The radial valve hole is communicated with the negative pressure channel, and the radial valve hole and the negative pressure channel are in crossed distribution. The communicated part of the radial valve hole and the negative pressure channel forms an intersection of the radial valve hole and the negative pressure channel. The inner diameter of the radial valve hole is larger than that of the negative pressure channel. The second compression spring, the valve column and the inner limiting block are sequentially distributed from the bottom surface of the radial valve hole to the orifice direction of the radial valve hole. One end of the second compression spring is abutted against the bottom surface of the radial valve hole, and the other end of the second compression spring is abutted against the valve column. The ejector rod and the orifice of the radial valve hole are positioned on the same side of the valve column. The orifices of the inner limiting block and the radial valve hole are positioned on the same side of the intersection port of the negative pressure channel and the radial valve hole.
When the piston post supports the rear end of the handheld cylinder body, the end part of the ejector rod supports the inner wall of the handheld cylinder body, the valve post and the bottom surface of the radial valve hole are located on the same side of an intersection port of the negative pressure channel and the radial valve hole, and the radial valve hole is located between the ejector rod accommodating hole and the rear end of the handheld cylinder body.
When the ejector rod is aligned with the ejector rod accommodating hole, the ejector rod extends into the ejector rod accommodating hole under the action of the second compression spring until the valve column abuts against the inner limiting block, and the outer release through hole is positioned between the two first sealing rings; when the valve column abuts against the inner limiting block, the valve column blocks an intersection of the negative pressure channel and the radial valve hole.
The specific work of the cutting and locking device of the embodiment is as follows, in the midwifery process, if the midwifery pull-out force of the operator pulling out the fetus is greater than a set value, when the hand-held cylinder body moves backwards relative to the sucker mounting rod, and the hand-held cylinder body moves backwards relative to the sucker mounting rod by a set distance, so that the ejector rod and the ejector rod accommodating hole are aligned, the ejector rod extends into the ejector rod accommodating hole under the action of the second compression spring until the valve post abuts against the inner limiting block, and at the moment, the outer release through hole is positioned between the two first sealing rings, so that the outside air enters the negative pressure channel; the valve column blocks the intersection port of the negative pressure channel and the radial valve hole, and cuts off the negative pressure source of the negative pressure channel; thereby ensuring that the sucker releases the head of the fetus at the moment, and avoiding the problem that the parturited fetus is damaged due to large force for assisting delivery in the process of assisting delivery. On the other hand, because the ejector pin stretches into the ejector pin accommodating hole, the relative position of the handheld cylinder body and the piston column is locked, and the damage to the fetus caused by the fact that the handheld cylinder body and the piston column move relatively suddenly under the action of the first compression spring after the head of the fetus is released by the sucker is avoided.
Further, as shown in fig. 2, a push rod through hole communicated with the push rod accommodating hole is formed in the outer side surface of the handheld cylinder body, and the inner diameter of the push rod through hole is smaller than that of the push rod accommodating hole. The push rod via hole is internally provided with a sliding push rod 9.7, a second sealing ring is arranged between the sliding push rod and the push rod via hole, the end part of the sliding push rod is provided with an end part limiting 9.8, and an end part limiting block is positioned in the ejector rod accommodating hole. In this embodiment, a sealing ring mounting groove is formed in the inner wall of the via hole of the push rod, and the second sealing ring is disposed in the sealing ring mounting groove. So, after the ejector pin stretched into to the ejector pin accommodation hole, can be through the push rod that slides to inwards pushing out the ejector pin from the ejector pin accommodation hole, the ejector pin is from the downthehole back of pushing out of ejector pin accommodation, and the piston post supports the rear end at handheld cylinder body under first compression spring's effect, so that obstetrical department's sucking disc practise midwifery device's reuse.
Furthermore, the end surface of the ejector rod, which faces the inner wall of the handheld cylinder body, is provided with a ball, and the ball abuts against the inner wall of the handheld cylinder body.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (8)
1. A sucker midwifery device for obstetrical department is characterized by comprising a handheld cylinder body, a first compression spring positioned in the handheld cylinder body, a piston column arranged in the handheld cylinder body in a sliding manner, two first sealing rings arranged on the piston column, a sucker mounting rod arranged at one end of the piston column, a negative pressure joint arranged at the other end of the piston column, a sucker arranged at the end part of the sucker mounting rod, a negative pressure channel arranged in the piston column, an outer release through hole arranged on the side wall of the handheld cylinder body and an inner release through hole arranged on the outer side surface of the piston column,
the front end of the handheld cylinder body is provided with a front end through opening, the rear end of the handheld cylinder body is provided with a rear end through opening, the sucker mounting rod penetrates through the front end through opening, the sucker is positioned on the outer side of the handheld cylinder body, the negative pressure joint penetrates through the rear end through opening, and the negative pressure joint is provided with a switch valve;
one end of the negative pressure channel is communicated with the sucker, the other end of the negative pressure channel penetrates through the piston column and is communicated with the negative pressure joint, the inner release through hole is positioned between the two first sealing rings and is communicated with the negative pressure channel, the first compression spring is positioned between the front end of the hand-held cylinder body and the piston column, the piston column is propped against the rear end of the hand-held cylinder body under the action of the first compression spring,
when the piston post is propped against the rear end of the handheld cylinder body, the two first sealing rings and the rear end of the handheld cylinder body are positioned on the same side of the outer release through hole.
2. The obstetric suction cup midwifery device as claimed in claim 1, wherein when the piston post abuts against the rear end of the hand cylinder, a distance between the outer relief through hole and a first seal ring adjacent to the outer relief through hole is less than 5 cm in the axial direction of the hand cylinder.
3. The obstetric suction cup midwifery device as claimed in claim 1, further comprising a cutting and locking device, wherein the cutting and locking device comprises a radial valve hole arranged on the outer side surface of the piston column, a valve column slidably arranged in the radial valve hole, a push rod arranged at one end of the valve column, an inner limit block arranged on the side wall of the radial valve hole, a second compression spring arranged in the radial valve hole and a push rod accommodating hole arranged on the inner wall of the hand-held cylinder body,
the radial valve hole extends along the radial direction of the piston column, the radial valve hole and the ejector rod accommodating hole are both positioned between the two first sealing rings, the radial valve hole is communicated with the negative pressure channel, the radial valve hole and the negative pressure channel are in crossed distribution, the inner diameter of the radial valve hole is larger than that of the negative pressure channel, the second compression spring, the valve column and the inner limiting block are sequentially distributed from the bottom surface of the radial valve hole to the orifice direction of the radial valve hole, the ejector rod and the orifice of the radial valve hole are positioned on the same side of the valve column, the orifices of the inner limiting block and the radial valve hole are positioned on the same side of the intersection port of the negative pressure channel and the radial valve hole,
when the piston column abuts against the rear end of the handheld cylinder body, the end part of the ejector rod abuts against the inner wall of the handheld cylinder body, the bottom surfaces of the valve column and the radial valve hole are located on the same side of an intersection port of the negative pressure channel and the radial valve hole, and the radial valve hole is located between the ejector rod accommodating hole and the rear end of the handheld cylinder body;
when the ejector rod is aligned with the ejector rod accommodating hole, the ejector rod extends into the ejector rod accommodating hole under the action of the second compression spring until the valve column abuts against the inner limiting block, and the outer release through hole is positioned between the two first sealing rings; when the valve column abuts against the inner limiting block, the valve column blocks an intersection of the negative pressure channel and the radial valve hole.
4. The obstetric suction cup midwifery device as claimed in claim 3, wherein a push rod through hole communicated with the push rod accommodating hole is formed in the outer side surface of the hand cylinder body, the inner diameter of the push rod through hole is smaller than that of the push rod accommodating hole, a sliding push rod is arranged in the push rod through hole, a second sealing ring is arranged between the sliding push rod and the push rod through hole, an end limiting block is arranged at the end of the sliding push rod, and the end limiting block is located in the push rod accommodating hole.
5. The obstetric suction cup midwifery device as claimed in claim 3, wherein the end surface of the push rod facing the inner wall of the hand-held cylinder body is provided with a ball bearing, and the ball bearing abuts against the inner wall of the hand-held cylinder body.
6. The obstetric suction cup midwifery device as claimed in claim 1, 2, 3, 4 or 5, wherein the outer side surface of the suction cup mounting rod is provided with a limiting convex strip extending along the axial direction of the hand-held cylinder body, the inner side surface of the front end opening is provided with a limiting groove matched with the limiting convex strip, and the limiting convex strip is matched with the limiting groove.
7. The obstetric suction cup midwifery device as claimed in claim 1, 2, 3 or 4, wherein two first sealing ring mounting grooves are formed in the outer side surface of the piston column, and the two first sealing rings are correspondingly mounted on the corresponding first sealing ring mounting grooves one by one.
8. An obstetric suction cup midwifery device according to claim 1, 2, 3 or 4, further comprising a negative pressure hose for providing negative pressure, the negative pressure hose being connected to the negative pressure connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121354846.7U CN215606158U (en) | 2021-06-17 | 2021-06-17 | Obstetrical suction cup midwifery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121354846.7U CN215606158U (en) | 2021-06-17 | 2021-06-17 | Obstetrical suction cup midwifery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215606158U true CN215606158U (en) | 2022-01-25 |
Family
ID=79944970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121354846.7U Active CN215606158U (en) | 2021-06-17 | 2021-06-17 | Obstetrical suction cup midwifery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215606158U (en) |
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2021
- 2021-06-17 CN CN202121354846.7U patent/CN215606158U/en active Active
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