Novel amniotic sac booster

Abstract

The utility model discloses a novel amniotic sac booster, and belongs to the technical field of medical instruments. Comprising a supporting sleeve and a boosting assembly, the boosting assembly is arranged in the supporting sleeve in a sleeved mode, and the boosting assembly comprises a push-pull column, a supporting strip and a thin film sleeve capable of being inflated / water; the top of the push-pull column extends towards the upper portion of the supporting sleeve. The supporting strip is hinged to the top of the push-pull column through a hinge piece. The plurality of supporting strips are radially distributed at the top of the push-pull column; the film sleeve is arranged on the outer side of the supporting strip and tightly attached to the supporting strip or wraps the supporting strip inside, and the film sleeve is in a regular umbrella shape after being filled with gas / water to expand. The bottom of the push-pull column extends to the lower portion of the supporting sleeve, a pipeline is sleeved with the push-pull column, one end of the pipeline is communicated with the film sleeve, and the other end of the pipeline penetrates through the supporting sleeve to be connected with an external air blowing device or a water supplementing device. The amniotic sac booster is ingenious and simple in structure, can assist in supporting and upwards pushing the amniotic sac in cervical cerclage, is not easy to damage mucous membranes and tissues, and is safer.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and specifically relates to a novel amniotic sac booster. Background Art

[0002] At present, cervical cerclage is an effective treatment for preventing miscarriage and premature birth. Emergency cervical cerclage refers to the situation where the cervix dilates too early and the fetal membrane is exposed in the vagina. Before 27+6 weeks of pregnancy, cerclage can be considered as a remedial measure. When performing emergency cervical cerclage, since the patient's cervix has been dilated or even fully dilated, when performing cervical cerclage, you must first find a way to push the protruding amniotic sac into the uterine cavity, and then push it back into the uterine cavity before performing cervical cerclage.

[0003] In order to successfully complete the cervical cerclage, a ureteral balloon is often used in the clinic to fill water to form a small water bag, and the small water bag is used to assist in pushing the amniotic sac into the uterine cavity. However, for patients with a relatively large cervical opening, the ureteral balloon is too small to completely push the amniotic sac back, and the ureter is a soft tube with no support, making this method inapplicable. For this reason, in this case, the oval forceps are generally used in the clinic to clamp a large gauze, and the gauze is used to push the amniotic sac into the uterine cavity. However, in the process of tightening the cervix after the cervical cerclage, the gauze is a soft object and has no support for the amniotic sac. Therefore, in the process of withdrawing the tail gauze, the amniotic sac will come out about 1 to 2 cm. After repeated operations, there is even a risk of rupture of the amniotic sac, which leads to cerclage failure.

[0004] The prior art "CN111920497A A device for pushing up the amniotic sac during cervical cerclage" solves the problem that the existing equipment is large in size and cannot be withdrawn well. Although the upper fender and the lower fender are both elastic metal plates, and the edges and joints of the metal plates are smoothed and polished to avoid scratching the fetal membrane, there is still a risk of scratching the fetal membrane when it is subjected to unbalanced artificial force. Summary of the invention

[0005] The utility model aims to solve the above technical problems and proposes a new type of amniotic sac booster. The utility model has a simple structure, wherein air pressure or water pressure is used to flexibly contact the amniotic sac tissue, which does not damage the mucosa and tissue, is not easy to damage the amniotic sac, and is safer; at the same time, the amniotic sac booster can be easily opened and retracted, which is convenient for medical staff to operate, and brings high efficiency and high quality to cervical cerclage.

[0006] In order to achieve the above-mentioned invention object, the technical solution of the utility model is as follows:

[0007] A novel amniotic sac booster comprises a support sleeve and a booster assembly, wherein the booster assembly is sleeved in the support sleeve, and the booster assembly comprises a push-pull column, a support bar (such as a support bar, a plastic bar) and a film sleeve that can be inflated with air / water;

[0008] The top of the push-pull column extends toward the upper part of the support sleeve, and the support bar is hinged to the top of the push-pull column through a hinge, and the support bar can rotate 0° to 180° around the hinge at the top of the push-pull column; there are multiple support bars, which are radially distributed on the top of the push-pull column; the film sleeve is arranged on the outside of the support bar and is tightly attached to the support bar or the film sleeve wraps the support bar inside, and the film sleeve is filled with gas / water and expanded to be in the shape of a positive umbrella, and the upper surface of the positive umbrella is in flexible contact with the amniotic sac tissue;

[0009] The bottom of the push-pull column extends below the support sleeve. A pipe is provided inside the push-pull column. One end of the pipe is connected to the film sleeve, and the other end passes through the support sleeve and is connected to an external air blowing device or water replenishing device.

[0010] Furthermore, the top edge of the support sleeve is arranged to be smoothly rounded.

[0011] Furthermore, a fixing member, such as a bolt, is provided at the lower portion of the support sleeve for fixing and limiting the push-pull column.

[0012] Furthermore, the inner diameter of the support sleeve is 10 to 15 mm.

[0013] Furthermore, the film sleeve after being expanded by filling with gas / water has a diameter of 5 to 10 cm and a thickness of 3 to 5 cm.

[0014] Furthermore, the end of the support bar away from the hinge is a teardrop-shaped end, and the support bar is fixed to the outer edge of the film sleeve via the teardrop-shaped end.

[0015] Furthermore, the support sleeve is a support sleeve made of medical-grade hard plastic material or a support sleeve made of medical-grade hard silicone material.

[0016] Furthermore, the push-pull column is a push-pull column made of medical-grade hard plastic material or a push-pull column made of medical-grade hard silicone material.

[0017] Furthermore, the film sleeve is a film sleeve made of medical-grade hard plastic material or a film sleeve made of medical-grade hard silicone material.

[0018] Furthermore, the number of the support bars is 6 to 8.

[0019] The positional relationships such as "inside", "upper", "top", "outside", "interior", "below", "outside", "lower", and "end" involved in this technical solution are defined according to the situations under actual usage conditions. They are conventional terms in this technical field and are also conventional terms used by technical personnel in this field in actual use.

[0020] The beneficial technical effects brought about by adopting this technical solution are:

[0021] 1. In the utility model, the inflatable or water-filled film sleeve in the booster assembly cooperates with the support strip to achieve the effect of lifting the amniotic sac. Compared with the currently used oval forceps combined with gauze, the amniotic sac booster is easier to withdraw from the cervical opening than gauze when used for cervical cerclage (especially for patients with a relatively large cervical opening). After the amniotic sac booster is folded, the booster assembly is stored in the support sleeve as a whole, that is, the overall diameter of the amniotic sac booster is the diameter of the support sleeve. The support sleeve (inner diameter is 10-15mm) is relatively thin, and the support sleeve is made of hard material, which is supportive to the amniotic sac. After folding, the support sleeve stores the booster assembly and presents a solid structure. Therefore, the amniotic sac will not fall out with the booster assembly.

[0022] Second, in the present invention, a thin film sleeve structure is adopted, because it can be inflated with air or liquid to expand its extension range, and it is also the main structure of the amniotic sac in this scheme. Compared with the amniotic sac device in the prior art, its "pushing head" area can be designed to be larger, that is, its supporting structure is larger. After multiple groups of experimental optimization, the diameter of the film sleeve after expansion is designed to be 5-10cm and the thickness is 3-5cm. For patients with a relatively large cervical opening, the advantages of this amniotic sac booster are more obvious;

[0023] 3. In the present invention, the support bar can rotate 0° to 180° around the hinge at the top of the push-pull column, that is, when the "pushing up" action is completed and the amniotic sac booster needs to be withdrawn, the gas / water in the film sleeve needs to be released, and at the same time, the push-pull column is pulled downward, and the push-pull column carries the radially distributed support bars downward into the support sleeve. At this time, the upper end of the support sleeve has a retracting effect on the support bar, that is, under the joint action of the push-pull column and the upper end of the support sleeve, the support bar rotates around the hinge, and the rotation angle becomes closer and closer to 180° until it is retracted (at this time, the support bar is in the shape of an inverted umbrella) and retracted into the support sleeve, and then the entire amniotic sac booster is withdrawn. The structure is ingenious and simple, and the material cost is relatively low, and it can be used as a disposable auxiliary tool;

[0024] Fourth, in the present invention, the end of the support bar away from the hinge is a water drop-shaped end, and the support bar is fixed to the outer edge of the amniotic sac through the water drop-shaped end. Compared with the existing amniotic sac booster, when the present amniotic sac booster is in use, the device is in the shape of a positive umbrella, and its tip (specifically the hinged part of the support bar) is facing downward, the film sleeve on the top can be close to the amniotic sac, and the end is polished and smooth water drop-shaped, which is less likely to damage the amniotic sac. The support bar and the expanded film sleeve play a major supporting role together. In addition, the end of the support bar away from the hinge is a water drop-shaped end, which can also better prevent the film sleeve and the support bar from being taken out of the amniotic sac during the withdrawal of the push-pull column (that is, to prevent the amniotic sac from being sucked into the support sleeve), because the water drop-shaped end of the support bar is in contact with the amniotic sac, that is, surface-to-surface contact, rather than point-to-surface contact; in addition, the top edge of the support sleeve is set with a smooth rounded corner, that is, through blunt treatment, to avoid damaging the amniotic sac and other tissues during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model before use;

[0026] Figure 2 This is a state diagram of the push-pull column in the utility model when it is pushed upward;

[0027] Figure 3 This is a state diagram of the utility model when in use (the film sleeve is expanded and stretched);

[0028] Figure 4 This is a state diagram of the utility model when in use (the film sleeve is fully expanded);

[0029] Figure 5 This is a state diagram of the utility model after use (pull the push-pull column downward, the support strips are folded, the film sleeve is deflated, and the support strips are distributed in an inverted umbrella shape);

[0030] Figure 6 It is a schematic diagram of the installation of the hinged member in the utility model;

[0031] Figure 7 It is a schematic diagram of the arrangement of the water drop-shaped end in the utility model;

[0032] Among them, 1. support sleeve, 2. booster assembly, 2.1. push-pull column, 2.2. film sleeve, 2.3. support bar, 2.3.1. teardrop-shaped end, 2.4. hinge, 2.5. pipeline, 3. inflatable bag, 4. fixing part. DETAILED DESCRIPTION

[0033] The following is a clear and complete description of the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Example 1

[0035] This embodiment provides a new type of amniotic sac booster, such as Figure 1 As shown, it includes a support sleeve 1 and a booster assembly 2, and the booster assembly 2 is sleeved in the support sleeve 1. The booster assembly 2 includes a push-pull column 2.1, a support bar 2.3 (such as: support bar 2.3, plastic bar) and a film sleeve 2.2 that can be inflated with air / water (or sterile water, saline, lubricating fluid and other liquids). In this embodiment, the inflatable film sleeve 2.2 is taken as an example to further illustrate this solution.

[0036] Push-pull column 2.1: The top extends to the upper part of the support sleeve 1, and the bottom extends to the lower part of the support sleeve 1. A pipe 2.5 is sleeved inside the push-pull column 2.1. One end of the pipe 2.5 is connected to the film sleeve 2.2, and the other end passes through the support sleeve 1 and is connected to an external air blowing device or water supply device;

[0037] Support bar 2.3: hinged to the top of push-pull column 2.1 through hinge 2.4 (such as Figure 6 As shown), the support bar 2.3 can rotate 0° to 180° around the hinge 2.4 at the top of the push-pull column 2.1; there are multiple support bars 2.3, which are radially distributed on the top of the push-pull column 2.1;

[0038] The film sleeve 2.2 is arranged outside the support strip 2.3 and closely attached to the support strip 2.3 or the film sleeve 2.2 wraps the support strip 2.3 inside. In actual production, a suitable structure can be selected according to demand. The film sleeve 2.2 is filled with gas / water and expanded to be in the shape of a positive umbrella, and the upper surface of the positive umbrella is in flexible contact with the amniotic sac tissue.

[0039] For this amniotic sac booster, the working process involved includes:

[0040] 1. Before use, the booster assembly 2 and the film sleeve 2.2 are both folded into the support sleeve 1, wherein the film sleeve 2.2 is outside the support strip 2.3 in the booster assembly 2, such as Figure 1 As shown;

[0041] 2. After the amniotic sac booster is delivered to the target site, the support column in the support sleeve 1 is pushed upwards so that the support strip 2.3 and the film sleeve 2.2 extend out of the support sleeve 1. Figure 2 As shown;

[0042] Third, the other end of the pipe 2.5 connected to the film sleeve 2.2 is connected to the inflatable bag 3, and the film sleeve 2.2 is inflated to a suitable degree (determined according to actual needs) through the inflatable bag 3. The inflated film sleeve 2.2 is in the shape of an umbrella. At this time, the support bar 2.3 is on the lower side of the inflated film sleeve 2.2, and the top of the inflated film sleeve 2.2 is in contact with the amniotic sac. Under the joint action of the support bar 2.3 and the film sleeve 2.2, the purpose of supporting and pushing up the amniotic sac is achieved. Figure 3-4 As shown;

[0043] 4. When the pushing-up work is completed, the air is deflated through the inflatable bag 3, that is, the gas in the film sleeve 2.2 is deflated, the push-pull column 2.1 is slowly pulled downward, and then the amniotic sac booster is slowly and carefully withdrawn. At this time, the upper end of the support sleeve 1 has a retracting effect on the support bar 2.3, that is, under the joint action of the push-pull column 2.1 and the upper end of the support sleeve 1, the support bar 2.3 rotates around the hinge 2.4, and the rotation angle is getting closer and closer to 180°, until it is retracted (at this time, the support bar 2.3 is in the shape of an inverted umbrella) and retracted into the support sleeve 1, and then the entire amniotic sac booster is completely withdrawn. Figure 5 shown.

[0044] Among them, it can also be arranged like this: after the support bar and the film sleeve are folded and returned to the support sleeve 1, the top of the folded support bar 2.3 and the film sleeve 2.2 as a whole is just flush with the top of the support sleeve 1, preventing the amniotic sac from falling into the support sleeve 1 and causing the operation failure.

[0045] Example 2

[0046] On the basis of Example 1, this example further defines the following for the convenience of using the amniotic sac booster:

[0047] The top edge of the support sleeve 1 is set with smooth rounded corners, that is, it is blunted to avoid damaging the amniotic sac and other tissues during use, and the lower part of the support sleeve 1 is provided with a fixing member 4 for fixing and limiting the push-pull column 2.1, that is, limiting the range of motion of the push-pull column 2.1. The fixing member 4 can be a bolt, or other limiting grooves and limiting blocks can be set. When the upper surface of the umbrella-shaped film sleeve 2.2 is in flexible contact with the amniotic sac tissue, the push-pull column 2.1 is fixed and limited on the support sleeve 1 by tightening the bolts; when the amniotic sac booster needs to be retracted, the push-pull column 2.1 is loosened by rotating the bolts, and the push-pull column 2.1 is pulled downward, etc.

[0048] Example 3

[0049] On the basis of Examples 1-2, this example further defines the support sleeve 1 to further illustrate the technical solution.

[0050] The inner diameter of the support sleeve 1 is 10-15 mm, and the length is about 30 cm. This arrangement ensures that the inner cavity of the support sleeve 1 can well accommodate the booster assembly 2, which includes a push-pull column 2.1 and an inflatable film sleeve 2.2, and the top of the push-pull column 2.1 is hinged with a plurality of support bars 2.3, etc.; at the same time, the support sleeve 1 is small and easy to withdraw.

[0051] The support sleeve 1 is a support sleeve made of medical grade hard plastic material (such as medical grade PP material plastic, medical polypropylene) or a support sleeve made of medical grade hard silicone material. More preferably, a support sleeve made of medical grade hard silicone material (hardness greater than 60 degrees) is selected, which has a certain mechanical strength and can also play a certain supporting role on the amniotic sac.

[0052] Example 4

[0053] On the basis of embodiments 1-3, this embodiment further defines the film sleeve 2.2 to further illustrate the technical solution.

[0054] The film sleeve 2.2 after being expanded by filling gas / water has a diameter of 5 to 10 cm and a thickness of 3 to 5 cm.

[0055] In addition, the film sleeve 2.2 is a film sleeve made of medical grade hard plastic material (such as medical grade PP material plastic, medical polypropylene) or a film sleeve made of medical grade hard silicone material. Preferably, a film sleeve made of medical grade hard silicone material (hardness of 10 to 60 degrees) is selected, which has a certain elasticity and softness, and under the action of air pressure / water pressure, ensures that its upper surface in the shape of an umbrella is in flexible contact with the amniotic sac tissue.

[0056] Example 5

[0057] On the basis of embodiments 1-4, this embodiment further defines the support bar 2.3 to further illustrate the technical solution.

[0058] The end of the support bar 2.3 away from the hinge 2.4 is a teardrop-shaped end 2.3.1 (such as Figure 7 As shown in the figure, the support bar 2.3 is fixed to the outer edge of the film sleeve 2.2 through the water drop-shaped end 2.3.1. When the amniotic sac booster is in the state of inflation / flushing, the film sleeve 2.2 bulges outward and bends toward the lower inner side with the water drop-shaped end, ensuring that the upper surface of the film sleeve 2.2 forms a smooth surface, thereby flexibly contacting with the amniotic sac tissue.

[0059] The number of the supporting bars 2.3 is 6 to 8, which play a certain supporting role on the film sleeve 2.2. At the same time, when the amniotic sac booster is withdrawn, the film sleeve 2.2 can be retracted well.

[0060] Example 6

[0061] On the basis of Examples 1-5, this example further defines the push-pull column 2.1 to further illustrate the technical solution.

[0062] The push-pull column 2.1 is a push-pull column made of medical grade hard plastic material (such as medical grade PP material plastic, medical polypropylene) or a push-pull column made of medical grade hard silicone material. More preferably, the push-pull column is made of medical grade hard plastic material, which is convenient for pushing up or pulling down the support bar 2.3 and the film sleeve 2.2.

Claims

1. A novel amniotic sac booster, characterized in that: It comprises a support sleeve (1) and a booster assembly (2), wherein the booster assembly (2) is sleeved in the support sleeve (1), and the booster assembly (2) comprises a push-pull column (2.1), a support bar (2.3) and a film sleeve (2.2) that can be inflated with air / water; The top of the push-pull column (2.1) extends toward the upper part of the support sleeve (1); the support bar (2.3) is hinged to the top of the push-pull column (2.1) through a hinge (2.4); the support bar (2.3) can rotate 0° to 180° around the hinge (2.4) at the top of the push-pull column (2.1); there are multiple support bars (2.3) radially distributed on the top of the push-pull column (2.1); the film sleeve (2.2) is arranged on the outside of the support bar (2.3) and is tightly attached to the support bar (2.3) or the film sleeve (2.2) wraps the support bar (2.3) inside; the film sleeve (2.2) is filled with gas / water and expands to form a positive umbrella shape, and the upper surface of the positive umbrella shape is in flexible contact with the amniotic sac tissue; The bottom of the push-pull column (2.1) extends downwardly from the support sleeve (1). A pipe (2.5) is sleeved inside the push-pull column (2.1). One end of the pipe (2.5) is connected to the film sleeve (2.2), and the other end passes through the support sleeve (1) to be connected to an external air blowing device or water replenishing device.

2. The novel amniotic sac booster according to claim 1 is characterized in that: The top edge of the support sleeve (1) is arranged in a smooth rounded shape.

3. The novel amniotic sac booster according to claim 1 is characterized in that: The lower part of the support sleeve (1) is provided with a fixing part (4) for fixing and limiting the push-pull column (2.1).

4. The novel amniotic sac booster according to claim 1 is characterized in that: The inner diameter of the support sleeve (1) is 10 to 15 mm.

5. The novel amniotic sac booster according to claim 1 is characterized in that: The film sleeve (2.2) after being expanded by filling gas / water has a diameter of 5 to 10 cm and a thickness of 3 to 5 cm.

6. The novel amniotic sac booster according to claim 1 is characterized in that: The end of the support bar (2.3) away from the hinge (2.4) is a water drop-shaped end ( 2.3.1), the support strip (2.3) is fixed to the outer edge of the film sleeve (2.2) through a teardrop-shaped end (2.3.1).

7. The novel amniotic sac booster according to claim 1 or 6, characterized in that: The number of the support bars (2.3) is 6 to 8.

8. The novel amniotic sac booster according to claim 1 is characterized in that: The support sleeve (1) is a support sleeve made of medical-grade hard plastic material or a support sleeve made of medical-grade hard silicone material.

9. The novel amniotic sac booster according to claim 1 is characterized in that: The push-pull column (2.1) is a push-pull column made of medical-grade hard plastic material or a push-pull column made of medical-grade hard silicone material.

10. The novel amniotic sac booster according to claim 1, characterized in that: The film sleeve (2.2) is a film sleeve made of medical-grade hard plastic material or a film sleeve made of medical-grade hard silicone material.

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