CN215458499U - Balloon pusher suitable for cervical cerclage - Google Patents
Balloon pusher suitable for cervical cerclage Download PDFInfo
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- CN215458499U CN215458499U CN202120889707.8U CN202120889707U CN215458499U CN 215458499 U CN215458499 U CN 215458499U CN 202120889707 U CN202120889707 U CN 202120889707U CN 215458499 U CN215458499 U CN 215458499U
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- balloon
- guide rod
- valve
- cervical cerclage
- assembly
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Abstract
The utility model discloses a balloon pusher suitable for cervical cerclage, which comprises a guide rod, a balloon and a guide pipe, wherein the balloon is connected with the first end of the guide rod; the guide tube is arranged in the guide rod, and the first end of the guide tube extends out of the first end of the guide rod and then is communicated with the saccule; when the saccule is inflated by gas or liquid flowing in from the catheter, one side of the saccule, which is far away from the guide rod, is in a hemispherical concave surface. According to the utility model, the side of the balloon, which is far away from the guide rod after being inflated by gas or liquid, is in the shape of a hemispherical concave surface, so that the maximum contact area with the fetal cells is provided after the balloon is contacted with the fetal cells, the force applied to the fetal membranes by the balloon is uniformly distributed, and the risk of rupture of the fetal membranes is reduced.
Description
Technical Field
The utility model relates to the technical field of medical auxiliary equipment, in particular to a balloon pusher suitable for cervical cerclage.
Background
Mid-term cervical insufficiency with fetal membrane prolapse is a serious complication of pregnancy, which can lead to abortion or premature delivery. The patient may benefit from the procedure by performing an emergency cervical cerclage, however, the fetal membranes are easily ruptured during the procedure, especially when the cervix is widely dilated and the fetal membranes are pulled out of the external cervical os.
At present, when emergency cervical cerclage is carried out, medical staff push the raised fetal membrane back to the uterine cavity by using a sponge swab or a Foley catheter, and because the fetal membrane is unevenly stressed in the pushing process and is easily broken in the operation, the incidence rate of abortion or premature delivery is further increased.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides the balloon pusher suitable for the cervical cerclage operation, which can avoid rupture of the fetal membrane caused by uneven stress of the balloon on the fetal membrane in the force application process of medical personnel.
In order to achieve the purpose, the utility model provides the following technical scheme:
a balloon pusher suitable for use in cervical cerclage, comprising:
a guide bar;
a balloon connected to a first end of the guide rod;
the catheter is arranged in the guide rod, and the first end of the catheter extends out of the first end of the guide rod and then is communicated with the balloon;
when the saccule is inflated by gas or liquid flowing in from the guide pipe, one side of the saccule far away from the guide rod is hemispherical concave.
Furthermore, the second end of the guide pipe extends out of the second end of the guide rod and then is detachably connected with the pushing and sucking assembly; a valve component is arranged in the conduit close to the second end of the conduit;
when the push-suction assembly fills gas or liquid into the balloon or extracts the gas or liquid out of the balloon, the valve assembly is in an open state; when the push-suction assembly finishes inflating gas or liquid into the balloon or extracts gas or liquid from the balloon, the valve assembly is in a closed state; wherein the balloon has a maximum volume of 50 milliliters.
Further, the valve assembly comprises:
the valve body is connected with the second end of the guide pipe, and a valve port is arranged in the middle of a valve cavity of the valve body;
the baffle plate can move along the length direction of the valve body and is provided with a first position for opening the valve port and a second position for closing the valve port;
the connecting pipe is arranged in the valve cavity and can move along the length direction of the valve body, the first end of the connecting pipe is detachably connected with the push-suction assembly, and the second end of the connecting pipe is close to the valve port; when the connecting pipe moves towards the baffle plate so as to be contacted with the baffle plate, the baffle plate can move to the first position under the driving of the movement of the connecting pipe;
the first end of the spring is connected with the valve body, and the second end of the spring is connected with the baffle; when the connecting pipe moves away from the baffle plate, the baffle plate can move to the second position under the driving of the resilience force of the spring.
Further, the outer side of the valve body is connected with the inner thread of the guide pipe in a matched mode through outer threads.
Further, the push-suction assembly is a syringe.
Further, a through-hole assembly is connected to the first end of the conduit, the through-hole assembly comprising:
the through hole ball is arranged at the first end of the catheter and is positioned in the balloon, and a plurality of through holes communicated with the catheter are distributed on the spherical surface of the through hole ball.
Furthermore, the central axis of the through hole ball and the central axis of the guide rod are positioned on the same straight line, and the diameter of the through hole ball is the same as that of the guide rod.
Furthermore, scale marks are marked on the outer wall of the guide rod.
Further, the balloon is prepared from silica gel.
Further, the central axis of the guide pipe is in the same straight line with the central axis of the guide rod.
According to the balloon pusher suitable for the cervical cerclage provided by the utility model, the balloon is provided with the maximum contact area contacted with the fetal cells after being contacted with the fetal cells by enabling the balloon to be in a hemispherical concave surface on the side away from the guide rod after being pushed and expanded by gas or liquid, so that the force applied to the fetal membranes by the balloon is uniformly distributed, and the risk of rupture of the fetal membranes is reduced. Therefore, the balloon pusher provided by the utility model can avoid rupture of the fetal membrane caused by uneven stress of the balloon on the fetal membrane in the force application process of medical personnel, and greatly improves the success rate of the operation.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic structural diagram of a balloon pusher suitable for use in cervical cerclage according to an exemplary embodiment of the present invention;
FIG. 2 is a schematic diagram of the construction of a valve assembly provided in an exemplary embodiment of the present invention.
In the figure:
1-a guide rod;
2-a balloon;
3-a catheter;
4-valve component, 401-valve body, 402-baffle, 403-connecting pipe, 404-spring, 405-valve port; 5-via ball, 501-via.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of 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 considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified 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 connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. 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 utility model provides a balloon pusher suitable for cervical cerclage, which comprises a guide rod 1, a balloon 2 and a catheter 3, wherein the balloon 2 is connected with a first end of the guide rod 1; the catheter 3 is arranged in the guide rod 1, and the first end of the catheter 3 extends out of the first end of the guide rod 1 and then is communicated with the balloon 2; when the balloon 2 is inflated by gas or liquid flowing from the catheter 3, the side of the balloon 2 away from the guide rod 1 is hemispherical concave.
After being pushed to a position close to a prolapsed fetal cell by the balloon pusher, medical staff slowly injects gas or liquid to gradually expand the balloon 2 to enable the fetal cell to be pushed into the cervix uteri, and because the balloon 2 provided by the utility model is pushed by the gas or the liquid to expand and then the side far away from the guide rod 1 is in a hemispherical concave surface, the maximum contact area with the fetal cell is provided after the balloon 2 is in contact with the fetal cell, so that the force applied to the fetal membrane by the balloon 2 can be uniformly distributed, and the risk of rupture of the fetal membrane is reduced. Therefore, the balloon pusher provided by the utility model can avoid rupture of the fetal membrane caused by uneven stress of the balloon 2 on the fetal membrane in the force application process of medical personnel, and greatly improves the success rate of the operation.
In some embodiments, the second end of the conduit 3 extends out of the second end of the guide rod 1 and is detachably connected with the push-suction assembly; a valve component 4 is arranged in the conduit 3 close to the second end; when the push-suction assembly fills gas or liquid into the balloon 2 or extracts the gas or liquid, the valve assembly 4 is in an open state; when the push-suction assembly finishes inflating gas or liquid into the balloon 2 or extracts gas or liquid, the valve assembly 4 is in a closed state; wherein the maximum volume of the balloon 2 is 50 ml. The valve assembly 4 is arranged in the catheter 3 close to the second end thereof, so that gas or liquid can smoothly enter the balloon 2 in the process of filling the gas or liquid into the balloon 2, and meanwhile, in the process of discharging the gas or liquid from the balloon 2, the gas or liquid can also pass through the valve assembly 4 in an open state, so that the gas or liquid can be smoothly discharged from the balloon 2; when the balloon 2 is completely filled with gas or liquid or gas or liquid is pumped out, the valve assembly 4 in the closed state can isolate the space formed by the balloon 2 and the catheter 3 from the outside, so that the liquid or gas in the balloon 2 is prevented from escaping, and meanwhile, the liquid or gas outside the catheter 3 is prevented from entering the balloon 2.
Preferably, referring to fig. 2, the valve assembly 4 comprises a valve body 401, a baffle 402, a connecting pipe 403 and a spring 404, the valve body 401 is connected with the second end of the conduit 3, and a valve port 405 is arranged in the middle of a valve cavity of the valve body 401; the baffle 402 is movable along the length of the valve body 401 and has a first position for opening the valve port 405 and a second position for closing the valve port 405; the connecting pipe 403 is arranged in the valve cavity and can move along the length direction of the valve body 401, a first end of the connecting pipe 403 is detachably connected with the push-suction assembly, and a second end of the connecting pipe 403 is arranged close to the valve port 405; after the connecting pipe 403 moves towards the baffle 402 to contact with the baffle 402, the baffle 402 can move to the first position under the driving of the movement of the connecting pipe 403; a first end of the spring 404 is connected with the valve body 401, and a second end of the spring 404 is connected with the baffle 402; when the connecting tube 403 moves away from the flap 402, the flap 402 can move to the second position by the resilience of the spring 404.
Specifically, the first end of the connection pipe 403 is connected to the push-suction assembly, the push-suction assembly drives the connection pipe 403 to move along the length direction of the valve cavity, and after the connection pipe 403 moves to contact with the baffle 402, the connection pipe 403 continues to move towards the balloon 2, so that the baffle 402 moves to the first position under the driving of the movement of the connection pipe 403, the valve port 405 is opened by the baffle 402, and then the push-suction assembly is controlled to push gas or liquid into the balloon 2, so that the balloon 2 is inflated, or the push-suction assembly is controlled to suck out the gas or liquid in the balloon 2, so that the balloon 2 is restored to the state before being inflated. After the filling of the gas or liquid in the balloon 2 is completed or the suction of the gas or liquid in the balloon 2 is completed, the pushing and sucking assembly drives the connecting pipe 403 to move along the length direction of the valve cavity, and after the connecting pipe 403 moves away from the valve port 405, the connecting pipe 403 continues to move away from the balloon 2, so that the baffle 402 moves to the second position under the driving of the resilience force of the spring 404, and the valve port 405 is closed by the baffle 402. Preferably, the connection tube 403 and the push-and-pull assembly are detachably connected by a threaded assembly.
Further, the outer side of the valve body 401 is connected with the inner thread of the conduit 3 through the outer thread in a matching manner, so that the valve body 401 is not easy to slip off the conduit 3 under the flowing of gas or liquid.
In the preferred embodiment, the push-pull assembly is a syringe, and in the present embodiment, the tip of the syringe is detachably connected to the connection tube 403, so that the inflation of the balloon 2 can be completed by pushing the gas or liquid in the syringe into the catheter 3.
In some embodiments, the first end of the catheter 3 is connected with a through hole assembly, the through hole assembly comprises a through hole ball 5, the through hole ball 5 is arranged at the first end of the catheter 3 and is located in the balloon 2, and a plurality of through holes 501 communicated with the catheter 3 are distributed on the spherical surface of the through hole ball 5, so that gas or liquid can enter the catheter 3 to expand the balloon 2.
In some embodiments, the central axis of the via ball 5 is collinear with the central axis of the guide rod 1, and the diameter of the via ball 5 is the same as the diameter of the guide rod 1.
In some embodiments, the outer wall of the guide rod 1 is marked with scale lines, and the scale lines on the guide rod 1 can indicate the insertion depth of the guide rod 1 in the operation process, so that the condition that the saccule 2 excessively separates the fetal membrane from the uterine wall due to the fact that the part sent into the uterine cavity is too deep is avoided.
In some embodiments, the balloon 2 is made of silica gel, and deformation during pushing of the tire bag can be avoided by selecting the silica gel material for the balloon 2.
In some embodiments, the central axis of the catheter 3 is collinear with the central axis of the guide rod 1.
The application method of the balloon pusher suitable for the cervical cerclage provided by the utility model comprises the following steps:
the balloon 2 is gradually inflated until the fetal cells are pushed into the outer cervix, then the guide rod 1 is held by hands, the inserting depth in the operation process is judged by scales marked on the guide rod 1, the situation that the fetal membranes are excessively separated from the uterine wall due to the fact that the fetal cells are sent into the uterine cavity is avoided, then the guide rod 1 is fixed by an assistant, an operator carries out cervical cerclage operation to suture, the balloon 2 is deflated after the cervical cerclage operation is sewed, the pusher is taken out, and the suture is tightened.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A balloon pusher suitable for use in cervical cerclage, comprising:
a guide bar (1);
a balloon (2) connected to a first end of the guide rod (1);
the catheter (3) is arranged in the guide rod (1), and the first end of the catheter (3) extends out of the first end of the guide rod (1) and then is communicated with the balloon (2);
when the saccule (2) is inflated by gas or liquid flowing in from the catheter (3), the side of the saccule (2) far away from the guide rod (1) is hemispherical concave.
2. The balloon pusher suitable for cervical cerclage according to claim 1, wherein the second end of the guide tube (3) extends out of the second end of the guide rod (1) and is detachably connected with the push-suction assembly; a valve component (4) is arranged in the conduit (3) close to the second end;
when the push-suction assembly fills gas or liquid into the balloon (2) or extracts the gas or the liquid, the valve assembly (4) is in an open state; when the push-suction assembly finishes inflating gas or liquid into the balloon (2) or extracts gas or liquid, the valve assembly (4) is in a closed state; wherein the maximum volume of the balloon (2) is 50 ml.
3. The balloon pusher suitable for use in cervical cerclage according to claim 2, wherein the valve assembly (4) comprises:
the valve body (401) is connected with the second end of the guide pipe (3), and a valve port (405) is arranged in the middle of a valve cavity of the valve body (401);
a flapper (402) movable along a length of the valve body (401) and having a first position to open the valve port (405) and a second position to close the valve port (405);
the connecting pipe (403) is arranged in the valve cavity and can move along the length direction of the valve body (401), the first end of the connecting pipe is detachably connected with the push-suction assembly, and the second end of the connecting pipe is arranged close to the valve port (405); when the connecting pipe (403) moves towards the baffle (402) to contact with the baffle (402), the baffle (402) can move to the first position under the driving of the movement of the connecting pipe (403);
a spring (404) having a first end connected to the valve body (401) and a second end connected to the baffle (402); when the connecting pipe (403) moves away from the baffle (402), the baffle (402) can move to the second position under the resilience of the spring (404).
4. The balloon pusher suitable for use in cervical cerclage according to claim 3, wherein the outer side of the valve body (401) is fittingly connected with the inner thread of the guide tube (3) by means of an outer thread.
5. The balloon pusher suitable for use in cervical cerclage of claim 2, wherein the push-pull assembly is a syringe.
6. The balloon pusher suitable for use in cervical cerclage according to claim 1, wherein a through hole assembly is connected to the first end of the catheter tube (3), the through hole assembly comprising:
the through hole ball (5) is arranged at the first end of the catheter (3) and is positioned in the balloon (2), and a plurality of through holes (501) communicated with the catheter (3) are distributed on the spherical surface of the through hole ball (5).
7. The balloon pusher suitable for use in cervical cerclage according to claim 6, wherein the central axis of the through-hole ball (5) is in the same line with the central axis of the guide rod (1), and the diameter of the through-hole ball (5) is the same as the diameter of the guide rod (1).
8. The balloon pusher suitable for use in cervical cerclage according to claim 1, wherein the outer wall of the guide rod (1) is marked with graduation lines.
9. The balloon pusher suitable for use in cervical cerclage according to claim 1, wherein the balloon (2) is made of silicone.
10. The balloon pusher suitable for use in cervical cerclage according to claim 1, wherein the central axis of the guide tube (3) is collinear with the central axis of the guide rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120889707.8U CN215458499U (en) | 2021-04-27 | 2021-04-27 | Balloon pusher suitable for cervical cerclage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120889707.8U CN215458499U (en) | 2021-04-27 | 2021-04-27 | Balloon pusher suitable for cervical cerclage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215458499U true CN215458499U (en) | 2022-01-11 |
Family
ID=79776285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120889707.8U Active CN215458499U (en) | 2021-04-27 | 2021-04-27 | Balloon pusher suitable for cervical cerclage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215458499U (en) |
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2021
- 2021-04-27 CN CN202120889707.8U patent/CN215458499U/en active Active
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