CN217525317U

CN217525317U - Cervical cerclage sleeve

Info

Publication number: CN217525317U
Application number: CN202220722882.2U
Authority: CN
Inventors: 谭伟兰; 王松柏; 李晶晶; 黎箐; 李嘉碧; 洪燕
Original assignee: Jiangmen Maternity And Child Health Care Hospital
Current assignee: Jiangmen Maternity And Child Health Care Hospital
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-10-04
Anticipated expiration: 2032-03-30

Abstract

The utility model discloses a cervical cerclage sleeve, which comprises a main body and a sleeve ring; one end of the main body is provided with a fixed part, and the other end of the main body is provided with a plurality of movable parts; the cross-sectional area of the movable part is gradually increased along the direction far away from the fixed part; the inner side of the lantern ring is provided with an internal thread, and the fixed part and the movable part are both provided with an external thread matched with the internal thread; the fixed part is provided with a through hole, and the movable part is positioned on the side surface of the through hole. By arranging the main body and the lantern ring, the lantern ring can quickly tighten the tail end of the movable part on the cervix when moving close to the movable part, effectively prevent the expansion of the uterine orifice, facilitate the miscarriage prevention medication of a user and ensure the efficiency of the ceruical cerclage operation; through setting up internal thread and external screw thread, improved the accurate nature in location between main part and the lantern ring, guarantee that the movable part can adapt to different patients, avoid the main part to take place the condition that the pine takes off, improved cervical cerclage operation success rate.

Description

Cervical cerclage sleeve

Technical Field

The utility model belongs to the technical field of medical instrument technique and specifically relates to a cervical cerclage cover.

Background

The cerclage is the operation mode which is most commonly used for preventing middle-term gestational loss and premature delivery of cervical insufficiency in clinic, and aims at the characteristics of cervical internal os laxity, old cervical laceration, late abortion and premature delivery history of patients, or patients with double-fetus and multiple-fetus pregnancy and the like, wherein the cervix uteri is shorter than 0.5cm in the vaginal segment. At present, along with the popularization of noninvasive cervical cerclage, more and more cervical cerclage auxiliary tools are applied to cervical cerclage to achieve the effect of preventing the expansion of the uterine orifice. However, the existing cervical cerclage auxiliary tool has the problems of weak stability and inconvenient adjustment, and has higher requirements on the operation skill and experience of a doctor performing the operation.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an object of the present invention is to provide a cervical cerclage sleeve, which can perform quick and accurate tightening operation on the cervix in cervical cerclage operation, effectively prevent the expansion of the uterine orifice, and improve the execution efficiency and success rate of cervical cerclage operation.

The utility model provides a technical scheme that its problem adopted is:

a cervical cerclage sleeve comprises a main body and a lantern ring; one end of the main body is provided with a fixed part, and the other end of the main body is provided with a plurality of movable parts; the cross section area of the movable part is gradually increased along the direction far away from the fixed part; the inner side of the lantern ring is provided with an internal thread, and the fixed part and the movable part are both provided with an external thread matched with the internal thread; the fixed part is provided with a through hole, and the movable part is positioned on the side surface of the through hole.

The cervical cerclage sleeve at least has the following beneficial effects: by arranging the main body and the lantern ring, when the lantern ring moves close to the movable part, the tail end of the movable part can be quickly and tightly hooped on the cervix, so that the expansion of the uterine orifice is effectively prevented, a user can conveniently apply miscarriage prevention medicines, and the efficiency of the ceruical cerclage is ensured; through setting up internal thread and external screw thread, improved the accurate nature in location between the main part and the lantern ring, guarantee that the movable part can adapt to different patients, avoid the main part to take place the condition that the pine takes off, improved cervical cerclage art success rate.

Further, the movable parts are uniformly distributed on the side surfaces of the through holes. The structure ensures that when the lantern ring moves close to the movable parts, the movable parts can be slowly tightened and apply uniform constraint force to the cervix uteri, and the movable parts are prevented from falling off.

Further, the cross section of one end of the movable part, which is far away from the fixed part, is circular. The structure ensures the contact area between the movable part and the human body, reduces the pressure applied by the movable part to the human body tissue, and effectively relieves the pain of the patient.

Further, the number of the movable portions is six. The number of the movable parts is six, so that the movable parts can be slowly tightened and exert uniform constraint force on the cervix, the structure of the main body is simplified, and the production cost of the cervical cerclage sleeve is reduced.

Furthermore, one end of the movable part, which is far away from the fixed part, is provided with a convex part which extends outwards. Through setting up the bellying, avoid the lantern ring to drop from the lower extreme of movable part, improve the wholeness of cervical cerclage cover.

Further, a plurality of the protrusions combine to form a male ring that mates with the collar. The structure ensures that the bulge part can stably support the lantern ring, avoids the situation that the lantern ring falls off, and improves the safety of the cervical cerclage sleeve.

Further, the outer diameter of the convex ring is larger than the inner diameter of the lantern ring. The structure can ensure that the convex ring can stably support the lower end of the lantern ring, and the stability of the lantern ring is improved.

Further, the movable part is made of medical silicon rubber. The medical silicon rubber has good biocompatibility and stability, has no irritation, toxicity or anaphylactic reaction to human tissues, can keep the original elasticity and softness, and the movable part is made of the medical silicon rubber and can ensure the stability and the service life of the cervical cerclage sleeve.

Further, the surface of the movable portion is covered with a lubricant. The lubricant can improve the lubricating effect between the movable part and the human body, effectively reduce the damage of the human tissue, and reduce the corrosion chance of harmful microorganisms such as bacteria, viruses and the like to the human body.

Furthermore, the outer side of the lantern ring is provided with anti-skid grains. Through setting up anti-skidding line, convenient to use person improves cervical cerclage cover's convenience of use through rotatory lantern ring adjustment main part and lantern ring position relation.

The cervical cerclage sleeve has the beneficial effects that: by arranging the main body and the lantern ring, the lantern ring can quickly tighten the tail end of the movable part around the cervix when moving close to the movable part, effectively prevent the expansion of the uterine orifice, facilitate the miscarriage prevention medication of a user and ensure the efficiency of the ceruical cerclage operation; by arranging the internal thread and the external thread, the positioning accuracy between the main body and the lantern ring is improved, the movable part is ensured to be suitable for different patients, the main body is prevented from loosening, and the success rate of cervical cerclage is improved; through setting up anti-skidding line, convenient to use person improves cervical cerclage cover's convenience of use through rotatory lantern ring adjustment main part and lantern ring position relation.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a cervical cerclage sleeve according to an embodiment of the present invention;

fig. 2 is an exploded view of a cervical cerclage sleeve according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a cervical cerclage sleeve according to another embodiment of the present invention;

fig. 4 is a cross-sectional view of a cervical cerclage sleeve according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1 to 4, an embodiment of the present invention provides a cervical cerclage sleeve, including a main body 100 and a collar 200; one end of the main body 100 is provided with a fixed part 110, and the other end of the main body 100 is provided with a plurality of movable parts 120; the cross-sectional area of the movable portion 120 gradually increases in a direction away from the fixed portion 110; the inner side of the lantern ring 200 is provided with an internal thread 210, and the fixed part 110 and the movable part 120 are both provided with an external thread 130 matched with the internal thread 210; the fixed portion 110 is provided with a through hole 111, and the movable portion 120 is located on a side surface of the through hole 111.

By arranging the main body 100 and the lantern ring 200, when the lantern ring 200 moves close to the movable part 120, the tail end of the movable part 120 can be quickly tightened to the cervix, so that the expansion of the cervix is effectively prevented, a user can conveniently use miscarriage prevention medicines, and the efficiency of the ceruical cerclage is ensured; through setting up internal thread 210 and external screw thread 130, improved the accurate nature in location between main part 100 and the lantern ring 200, guarantee that movable part 120 can adapt to different patients, avoid main part 100 to take place the condition that the pine takes off, improved cervical cerclage success rate.

In another embodiment, the movable portions 120 are uniformly distributed on the side of the through-hole 111. This configuration ensures that when the collar 200 moves closer to the movable portions 120, the plurality of movable portions 120 can be slowly tightened and exert a uniform restraining force on the cervix, thereby preventing the movable portions 120 from falling off.

In another embodiment, the movable portion 120 has a circular cross-section at an end thereof away from the fixed portion 110. The structure ensures the contact area between the movable part 120 and the human body, reduces the pressure applied by the movable part 120 to the human body tissue, and effectively relieves the pain of the patient.

In another embodiment, the number of the movable portions 120 is six. The number of the movable parts 120 is six, which can ensure that the movable parts 120 can be slowly tightened and apply uniform constraint force to the cervix, simplify the structure of the main body 100, and reduce the production cost of the cervical cerclage sleeve.

Referring to fig. 3, in another embodiment, an end of the movable portion 120 away from the fixed portion 110 is provided with a protrusion 140 extending outward. By arranging the convex part 140, the lantern ring 200 is prevented from falling off from the lower end of the movable part 120, and the integrity of the cervical cerclage sleeve is improved.

In another embodiment, a plurality of protrusions 140 are combined to form a male ring 150 that mates with collar 200. By adopting the structure, the bulge part 140 can stably support the lantern ring 200, the situation that the lantern ring 200 falls off is avoided, and the safety of the cervical cerclage sleeve is improved.

In another embodiment, the outer diameter of the male ring 150 is greater than the inner diameter of the collar 200. This structure ensures that the collar 150 can stably support the lower end of the collar 200, improving the stability of the collar 200.

In another embodiment, the movable portion 120 is made of medical silicone rubber. The medical silicon rubber has good biocompatibility and stability, has no irritation, toxicity or anaphylactic reaction to human tissues, can keep the original elasticity and softness, and the movable part 120 is made of the medical silicon rubber and can ensure the stability and the service life of the cervical cerclage sleeve.

In another embodiment, the surface of the movable portion 120 is covered with a lubricant. The lubricant can increase the lubrication effect between the movable part 120 and the human body, effectively reduce the damage of the human tissue, and reduce the corrosion chance of harmful microorganisms such as bacteria and viruses to the human body.

In another embodiment, the collar 200 is provided with anti-slip threads 220 on the outside. Through setting up anti-skidding line 220, the person of being convenient for adjusts main part 100 and lantern ring 200 position relation through rotatory lantern ring 200, improves the convenience of use of cervical cerclage cover.

In another embodiment, the diameter of the through hole 111 is 3cm or more. The structure ensures that the secretion on the inner wall of the cervical tissue can be discharged through the through hole 111 in time, and the safety of the cervical cerclage sleeve is improved.

In another embodiment, the outer diameter of the collar 200 is 4cm or less. The structure effectively limits the volume of the cervical cerclage sleeve and improves the use flexibility of the cervical cerclage sleeve.

In another embodiment, the length of the body 100 is less than or equal to 3cm. This structure effectively limits the length of the main body 100, and not only ensures the coverage of the movable portion 120, but also avoids the inconvenience of using the main body 100 due to its excessive length.

Referring to fig. 2, another embodiment, the external threads 130 include first external threads 131 and second external threads 132. The first external thread 131 is located on the outer side of the fixed portion 110, and the second external thread 132 is located on the outer side of the movable portion 120. The height of the first external thread 131 is 4cm and the height of the second external thread 132 is 2cm. This structure ensures that the collar 200 can smoothly move on the first external thread 131 and the second external thread 132, and also effectively controls the range of motion of the collar 200, and improves the stability of the cervical cerclage sleeve.

The working principle of the present invention will be further explained below.

In the cervical cerclage operation, firstly, the lantern ring 200 is moved to the fixing part 110, the movable part 120 is opposite to the cervix of the patient, and the cervix is passed through the through hole 111, so that the main body 100 is sleeved on the cervix; then, the collar 200 is rotated, and under the action of the internal thread 210 and the external thread 130, the collar 200 can move in the direction close to the movable part 120; in the moving process of the lantern ring 200, the tail end of the movable part 120 is tightened towards the through hole 111, so that the cervix is lengthened, inward pressure is generated on the cervix, the function of preventing the expansion of the uterine orifice is achieved, and time is won for miscarriage prevention medication and the onset time of the medication for a doctor. Under the mutual cooperation of internal thread 210 and external thread 130, make lantern ring 200 carry out position adjustment according to the size of patient's cervix, guarantee that activity portion 120 can continuously and stably exert pressure to the cervix to satisfy different patient's individual difference, and can carry out position adjustment according to actual state of an illness change. Meanwhile, the protrusion 140 can stably support the collar 200 when the collar 200 moves to the lower end of the movable portion 120, so that the collar 200 is prevented from falling off from the lower end of the main body 100, and the integrity and safety of the cervical cerclage sleeve are improved. For patients with shortened cervix, threatened abortion, poor pregnancy history or incomplete cervix uteri, the cervical cerclage sleeve provided by the embodiment of the utility model can perform non-invasive cervical cerclage operation in as short a time as possible, and has the advantages of simple and easy operation and high adjustment convenience; the process of entering an operating room and receiving anesthesia is also avoided, the requirements on the operation skill and experience of the doctor performing the operation are not high, the cost of the patient is obviously reduced, and the chances of infection, bleeding and membrane rupture are obviously reduced.

As can be seen from the above description, the cervical cerclage sleeve of the present invention, by providing the main body 100 and the sleeve ring 200, when the sleeve ring 200 moves close to the movable portion 120, the end of the movable portion 120 can be quickly tightened to the cervix, so as to effectively prevent the expansion of the uterine orifice, facilitate the use of miscarriage prevention medicine, and ensure the efficiency of the cervical cerclage; by arranging the internal thread 210 and the external thread 130, the positioning accuracy between the main body 100 and the lantern ring 200 is improved, the movable part 120 is ensured to be suitable for different patients, the main body 100 is prevented from loosening, and the success rate of cervical cerclage is improved; through setting up anti-skidding line 220, the person of being convenient for adjusts main part 100 and lantern ring 200 position relation through rotatory lantern ring 200, improves cervical cerclage cover's convenience of use.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.

Claims

1. A cervical cerclage sleeve is characterized by comprising a main body and a lantern ring; one end of the main body is provided with a fixed part, and the other end of the main body is provided with a plurality of movable parts; the cross-sectional area of the movable part is gradually increased along the direction far away from the fixed part; the inner side of the lantern ring is provided with an internal thread, and the fixed part and the movable part are both provided with an external thread matched with the internal thread; the fixed part is provided with a through hole, and the movable part is positioned on the side surface of the through hole.

2. The cervical cerclage sheath according to claim 1, wherein the movable portions are uniformly distributed on the side of the through hole.

3. The cervical cerclage according to claim 2, wherein an end of the movable portion away from the fixed portion has a circular cross-section.

4. The cervical cerclage according to claim 2, wherein the number of the movable portions is six.

5. The cervical cerclage according to claim 2, wherein an end of the movable portion away from the fixed portion is provided with an outwardly extending protrusion.

6. The cervical cerclage according to claim 5, wherein a plurality of the protrusions combine to form a male ring that mates with the collar.

7. The cervical cerclage according to claim 6, wherein the outer diameter of the male ring is larger than the inner diameter of the collar.

8. The cervical cerclage according to claim 1, wherein the movable portion is made of medical silicone rubber.

9. The cervical cerclage according to claim 8, wherein the surface of the movable portion is covered with a lubricant.

10. The cervical cerclage sheath of claim 1, wherein the outside of the sleeve ring is provided with anti-slip lines.