CN213252448U

CN213252448U - Amniotic sac accommodating device

Info

Publication number: CN213252448U
Application number: CN202022015273.7U
Authority: CN
Inventors: 聂小成
Original assignee: Sichuan Provincial Hospital for Women and Children
Current assignee: Sichuan Provincial Hospital for Women and Children
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-05-25
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses a ware is received back to amniotic membrane bag, including injection device and pipe, the one end of pipe is connected injection device's injection port, the other end of pipe is connected with the sacculus, the inside of this sacculus with the inside intercommunication of pipe, the sacculus with the connecting portion of pipe are round chamfer, the maximum diameter after the sacculus is sufficient is greater than the diameter of human cervical orifice, the diameter of pipe is less than the diameter of human cervical orifice. The utility model has the advantages of simple structure, facilitate promotion. Because the sacculus is soft after being full, and the contact area between the sacculus and the amniotic sac is larger when the balloon is used, the rupture of the amniotic sac is not easy to cause. The size of the saccule can be flexibly adjusted according to the size of the uterine orifice.

Description

Amniotic sac accommodating device

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a amniotic sac accommodating device.

Background

In clinical work, the situation that the uterine orifice is expanded and the amniotic sac falls into the vagina due to cervical insufficiency or cervical relaxation is often encountered in the pregnancy of only more than twenty weeks, if the emergency cervical cerclage is not performed, the uterine orifice is larger and larger, the part of the amniotic sac protruding into the vagina is also enlarged, and finally the rupture of the amniotic sac occurs to cause abortion. In our country, if the fetus is delivered before 28 weeks of gestation, it is called abortion. Based on the current state of medical technology in China, the survival rate of aborted fetuses is extremely low, and even if the fetuses occasionally survive, the possibility of various serious complications in the future is extremely high, even the fetuses die. For this reason, patients who have cervical laxity before 28 weeks of gestation, especially patients whose amniotic sac has protruded into the vagina, must receive the amniotic sac and cerclage as soon as possible. However, because the amniotic sac has a thin wall and bears the pressure of the uterine cavity, the amniotic sac is difficult to be accommodated back and forth by bare hands or other common instruments, and is ruptured by carelessness, and finally the cervical cerclage fails to cause abortion.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a ware is received back to amniotic sac is difficult for leading to the amniotic sac to break at the operation in-process.

The technical scheme of the utility model is that: the utility model provides a ware is received back to amniotic sac, includes injection device and pipe, the one end of pipe is connected injection device's injection port, injection device with the connection can be dismantled to the tip of pipe, be equipped with check valve in the pipe, the other end of pipe is connected with the sacculus, the inside of this sacculus with the inside intercommunication of pipe, the sacculus with the connecting portion of pipe are round chamfer, the maximum diameter after the sacculus is full is greater than the diameter of human cervical orifice, the diameter of pipe is less than the diameter of human cervical orifice.

When the device is used, normal saline is placed into the injection device, the injection device injects the normal saline into the balloon through the catheter, so that the balloon is in a half-filling state, the oval forceps are used for clamping a connecting part of the catheter and the balloon, the parallel state of the axis of the oval forceps and the axis of the catheter is kept, and the top end of the oval forceps and the balloon are slightly extruded so as to ensure that the balloon does not swing randomly; slowly propping the half-filled saccule against the amniotic sac, pushing the amniotic sac into the uterine cavity, adjusting the medium in the saccule to a proper amount through the injection device if the medium in the saccule is too much or too little, performing purse string suture on the cervical and vaginal part by using a needle thread specially used for cervical cerclage, then pumping the normal saline in the saccule back to the injection device, and taking out the catheter. The round angle at the connection part of the balloon and the catheter is used for enabling one end entering the body of a patient to be smooth, so that the mucosa in the body of the patient is prevented from being damaged.

In a further technical scheme, check valve includes a plurality of curved valves, and the one end ring shape of valve is piled up and is set up on the inside wall of pipe, the evagination one side orientation of valve the axis at pipe place, every the other end orientation of valve the axis of pipe is gathered together. The purpose is to facilitate the injection device to be automatically closed after being taken out, and to avoid the medium in the conduit from flowing out.

In a further aspect, the balloon is ellipsoidal when inflated, and has a major axis perpendicular to the axis of the catheter. The purpose is in order to increase the contact surface of sacculus and amniotic sac, further reduces the risk that amniotic sac ruptures.

As a parallel scheme of the technical scheme, the balloon is spherical after being inflated. The purpose is also to enlarge the contact surface between the saccule and the amniotic sac and further reduce the risk of rupture of the amniotic sac.

In a further technical scheme, the injection device is an injector, an air pump or a water pump. The aim is to facilitate the practical use of the corresponding injection device according to the actual situation.

In a further technical scheme, the balloon is made of a soft rubber material. The purpose is to guarantee that the sacculus has sufficient elasticity, improves the travelling comfort when using simultaneously, also can effectively reduce manufacturing cost.

In a further aspect, the conduit is a rubber material. Aims to ensure the moderate softness and hardness of the catheter and facilitate the development of the operation.

In a further technical scheme, the diameter of the half-filled state of the saccule is 3-5 mm smaller than that of the cervix. After the liquid is injected, the diameter of the saccule is preferably smaller than the diameter of the uterine opening by 3mm-5mm, if the saccule is too large, the saccule is inconvenient to enter the uterine cavity, if the saccule is too small, the amniotic sac cannot be effectively pushed into the uterine cavity, and even the rupture of the amniotic sac is caused.

The utility model has the advantages that:

1. the structure is simple, and the popularization is convenient;

2. the balloon is soft after being filled, and the contact area between the balloon and the amniotic sac is large when the balloon is used, so that the amniotic sac is not easy to break;

3. the size of the saccule can be flexibly adjusted according to the size of the uterine orifice;

4. the method for taking out the storage device is simple, and the storage device can be slightly pulled out from the uterine cavity only by pumping out the liquid in the saccule;

5. the time for taking out the repositor is after cerclage of the cervix, so the amniotic sac can not bulge out of the cervix after the repositor is taken out;

6. low cost, disposable use, sanitation and no iatrogenic infection.

Drawings

FIG. 1 is a schematic view of the overall structure of the amniotic sac retriever according to the embodiment of the present invention;

FIG. 2 is a schematic view of the whole partial section structure of the amniotic sac retriever according to the embodiment of the present invention;

FIG. 3 is a schematic view of the whole partial section plane structure of the amniotic sac retriever according to the embodiment of the present invention;

fig. 4 is a schematic view of the balloon of the amniotic sac retriever according to the embodiment of the present invention, which is in an ellipsoidal shape.

Description of reference numerals:

10. a conduit; 20. a balloon; 30. an injection device; 40. a one-way valve; 41. a valve.

Detailed Description

The embodiments of the present invention will be further explained with reference to the drawings.

Example (b):

as shown in fig. 1-3, an amniotic sac accommodating device comprises an injection device 30 and a catheter 10, wherein one end of the catheter 10 is connected with an injection port of the injection device 30, the injection device 30 is detachably connected with the end portion of the catheter 10, a one-way valve 40 is arranged in the catheter 10, the other end of the catheter 10 is connected with a balloon 20, the inside of the balloon 20 is communicated with the inside of the catheter 10, the connecting portion between the balloon 20 and the catheter 10 is a round chamfer, the maximum diameter of the inflated balloon 20 is larger than the diameter of a human cervix, and the diameter of the catheter is smaller than the diameter of the human cervix.

In the above embodiment, as shown in fig. 1-2, the one-way valve 40 includes a plurality of arc-shaped flaps 41, one end of each flap 41 is annularly stacked on the inner side wall of the conduit 10, the convex side of each flap faces the axis of the conduit 10, and the other end of each flap 41 faces the central axis of the conduit 10 and converges. The purpose is to facilitate the injection device to be automatically closed after being taken out, and to avoid the medium in the conduit from flowing out.

In the above embodiment, as shown in fig. 4, the balloon 20 may be ellipsoidal when inflated, with its long axis perpendicular to the axis of the catheter 10, or spherical. The purpose is to enlarge the contact surface of the balloon 20 and the amniotic sac and further reduce the risk of rupture of the amniotic sac.

In the above embodiment, the injection device 30 may be a syringe, an air pump or a water pump. The aim is to facilitate the practical use of the corresponding injection device according to the actual situation.

In the above embodiment, the balloon 20 is preferably made of soft gel material. The purpose is to ensure that the balloon 20 has sufficient flexibility, improve the comfort in use and effectively reduce the production cost.

In the above embodiment, the conduit 10 is preferably made of rubber. Aims to ensure the moderate softness and hardness of the catheter and facilitate the development of the operation.

In the above embodiment, the balloon 20 in the semi-inflated state preferably has a diameter that is 3mm to 5mm smaller than the cervix. After the liquid is injected, the diameter of the balloon 20 is preferably smaller than the diameter of the uterine orifice by 3mm to 5mm, if the balloon 20 is too large, the balloon 20 cannot conveniently enter the uterine cavity, and if the balloon 20 is too small, the amniotic membrane sac cannot be effectively pushed into the uterine cavity, and even the rupture of the amniotic membrane sac is caused.

When the device is used, the physiological saline is placed into the injection device 30, the injection device 30 injects the physiological saline into the balloon 20 through the catheter 10, so that the balloon 20 is in an inflated state, the oval forceps are used for clamping a connecting part of the catheter 10 and the balloon 20, the parallel state of the axis of the oval forceps and the axis of the catheter 10 is kept, and the top ends of the oval forceps and the balloon 20 are slightly extruded, so that the balloon 20 can not swing randomly; slowly pushing the filled balloon 20 against the amniotic sac, pushing the amniotic sac into the uterine cavity, performing purse string suture on the cervix and vagina part by using a special needle thread for cervical cerclage, then drawing the normal saline of the balloon 20 back to the injection device 30, and taking out the catheter. The rounded chamfer is provided at the junction of the balloon 20 and the catheter 10 to smooth the end that enters the patient's body and avoid injury to the mucosa in the patient's body.

In the operation process, the operation flow is as follows:

after the anesthesia is effective, the patient has high buttocks and low buttocks, the patient is spread with a conventional disinfection towel, the vagina is exposed by a vagina draw hook, and the cervix and the vagina are disinfected by iodophor gauze (the user is careful when disinfecting, the action is gentle, otherwise, the amniotic sac is easy to rupture). The main knife uses the oval forceps to clamp the amniotic sac receptable device (the clamping method is as described above), the amniotic sac is pushed into the uterine cavity through the saccule 20 of the amniotic sac receptable device, the main knife hands the oval forceps to an assistant for fixing, the main knife uses special cervical cerclage needle thread to perform purse string suture on the cervix and vagina, 1 o 'clock needle insertion, 11 o' clock needle withdrawal, 10 o 'clock needle insertion, 8 o' clock needle withdrawal, 7 o 'clock needle insertion, 5 o' clock needle withdrawal, 4 o 'clock needle insertion, 2 o' clock needle withdrawal, the main knife strains the suture thread and makes 6 knots, the assistant releases and takes out the oval forceps clamping the amniotic sac receptable device, the main knife uses an empty needle to withdraw the liquid in the amniotic sac receptable device, and the amniotic sac receptable device is taken out. The cervix and vaginal walls are again disinfected.

Simple structure, facilitate promotion of embodiment. The balloon 20 is soft after being filled, and the contact area between the balloon and the amniotic sac is large when the balloon is used, so that the amniotic sac is not easy to break. The size of the balloon 20 can be flexibly adjusted according to the size of the uterine orifice. The method of removing the retriever is simple and can be withdrawn from the uterine cavity only by withdrawing the fluid from the balloon 20. The time for taking out the repositor is after cerclage of cervix, so the amniotic sac can not bulge out of the cervix after the repositor is taken out. Low cost, disposable use, sanitation and no iatrogenic infection.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a ware is received back to amniotic membrane bag, a serial communication port, including injection device and pipe, the one end of pipe is connected injection device's injection port, injection device with the connection can be dismantled to the tip of pipe, be equipped with check valve in the pipe, the other end of pipe is connected with the sacculus, the inside of this sacculus with the inside intercommunication of pipe, the sacculus with the connecting portion of pipe are round chamfer, the maximum diameter after the sacculus is full is greater than the diameter of human cervical orifice, the diameter of pipe is less than the diameter of human cervical orifice.

2. The amniotic sac accommodating device according to claim 1, wherein the one-way valve comprises a plurality of arc-shaped valves, one end of each valve is annularly stacked on the inner side wall of the conduit, the convex side of each valve faces to the axis of the conduit, and the other end of each valve faces to the central axis of the conduit and is gathered together.

3. The amniotic sac retriever according to claim 1 or 2, wherein the balloon is ellipsoidal when inflated, with its long axis perpendicular to the axis of the catheter.

4. The amniotic sac retriever according to claim 1 or 2, wherein the balloon is spherical when inflated.

5. The amniotic sac retriever according to claim 1 or 2, wherein the injection device is a syringe, an air pump or a water pump.

6. The amniotic membrane sac receptable device according to claim 1 or 2, wherein the balloon is of soft gel material.

7. The amniotic sac retriever according to claim 1 or 2, wherein the conduit is of a rubber material.

8. The amniotic sac retriever according to claim 1 or 2, wherein the balloon in a half-filled state has a diameter that is 3mm to 5mm smaller than the cervical os.