CN216777180U - Deformable cervical support - Google Patents

Abstract

The utility model discloses a deformable cervical support, which comprises: the inner ring body (1), the outer ring body (2) and the valve body (3); the inner ring body (1) is a hollow ring body, and the inner ring body (1) surrounds and defines a hollow snare (12) for snaring the cervix; the outer ring body (2) is a hollow ring body, and the outer ring body (2) surrounds and defines a cylindrical inner space (23); the inner ring body (1) is positioned in the inner space (23) of the outer ring body (2); the inner ring body (1) and the outer ring body (2) are jointed together to define a closed chamber together; the valve body (3) is arranged on the outer ring body (2) and is communicated with the closed chamber in a fluid mode; wherein, under the action of the force with the same magnitude, the deformation of the inner ring body (1) is larger than that of the outer ring body (2). By utilizing the deformable cervical support, the shape of the cervical orifice can be adjusted according to requirements by injecting different amounts of liquid or gas into the closed cavity.

Description

Deformable cervical support

Technical Field

The utility model relates to the field of medical instruments, in particular to a deformable cervical support.

Background

Cervical insufficiency is also called endocervical insufficiency or cervical laxity. The cervix of the patient with cervical insufficiency has less fibrous tissues, elastic fibers, smooth muscles and the like, or the capability of the sphincter in isthmus is reduced due to the rupture of the fibrous tissues in the cervix, so that the cervix is expanded and relaxed pathologically. The cervical insufficiency is mainly manifested in premature delivery, middle and late repeated abortion, and the incidence rate of patients with repeated abortion is 8% -15%.

For the cervical insufficiency, the prior technical proposal adopts cervical cerclage and ties up the cervical sleeve by using a thread worn at the rear end of the operation needle. Thus, cervical cerclage is a traumatic procedure.

The cervical collar, also known as pessary, is a medical appliance for treating cervical insufficiency, and is an economic, simple, safe and effective product.

The existing cervical support aims to keep the shape of a cervical opening when the cervical support is placed and avoid the expansion of the cervical opening along with the increase of the gestational period, so the cervical support is placed in the early stage of pregnancy. The inventor finds that the existing cervical support mainly has the following two defects:

1. some pregnant women who find the cervical insufficiency in the late pregnancy lose the time for placing because of the over-expansion of the cervical orifice.

2. The cervix can start the uterine contraction under the condition of stimulation, and further the cervix can be continuously expanded, the existing cervical support can only keep the state of the cervix when being placed, and does not have the function of locking the cervix by resisting the expansion inwards.

Therefore, there is a clinical need for a cervical collar which can be converted into a ring-sleeving cervical opening shape according to the uterus, vagina shape, cervical opening direction and the like and has inward resistance to expansion pressure.

Disclosure of Invention

The utility model aims to provide a deformable cervical support which is used for sleeving a cervical orifice and preventing a loose cervical orifice from being expanded any more so as to avoid premature delivery.

Embodiments of the utility model relate to a deformable cervical collar, comprising: an inner ring body 1, an outer ring body 2 and a valve body 3;

the inner ring body 1 is a hollow ring body, and the inner ring body 1 surrounds and defines a hollow snare 12 for snaring the cervix;

the outer ring body 2 is a hollow ring body, and the outer ring body 2 surrounds and defines a cylindrical inner space 23;

the inner ring body 1 is located in the inner space 23 of the outer ring body 2; the inner ring body 1 and the outer ring body 2 are jointed together to jointly define a closed chamber;

the valve body 3 is mounted on the outer ring body 2 and is in fluid communication with the closed chamber;

wherein, under the action of the same force, the deformation of the inner ring body 1 is larger than that of the outer ring body 2.

In another preferred embodiment, the inner ring body 1 includes a first outer side wall 13 and a first inner side wall 14, the first outer side wall 13 is inwardly recessed and the first inner side wall 14 is inwardly arched, so as to define a cerclage track 11.

In another preferred embodiment, the outer ring body 2 includes a second outer sidewall 21 and a second inner sidewall 22, the second inner sidewall 22 surrounds and defines the inner space 23, and the second outer sidewall 21 is arched outwards.

In another preferred embodiment, the outer ring body 2 is embedded in the cerclage track 11, and the first outer side wall 13 and the second inner side wall 22 define the closed chamber therebetween.

In another preferred example, the valve body 3 is a one-way valve.

In another preferred embodiment, a first end of the valve body 3 is fixed to the second outer sidewall 21 of the outer ring body 2, and a second end of the valve body 3 extends into the sealed chamber.

In another preferred example, the first end of the valve body 3 is adapted to an injection head of a syringe, and the second end of the valve body 3 is in a wedge-shaped structure.

In another preferred example, the inner ring body 1 is made of soft medical silica gel material.

In another preferred example, the outer ring body 2 is made of a hard medical silica gel material.

In another preferred example, the valve body 3 is made of soft medical silica gel material.

It is to be understood that within the scope of the present invention, the above-described features of the present invention and those specifically described below (e.g., in the examples) may be combined with each other to form new or preferred embodiments. For reasons of space, they will not be described in detail.

Compared with the prior art, the implementation mode of the utility model has the main differences and the effects that:

the utility model provides a deformable cervical support, which is characterized in that liquid or gas is injected into a closed cavity defined by an inner ring body 1 and an outer ring body 2 through a valve body 3, and under the same pressure, the deformation of the inner ring body 1 is larger than that of the outer ring body 2, so that a pressing force towards the hollow ring sleeving direction of the inner ring body is generated, and a cervical orifice is closed. By utilizing the deformable cervical support, the shape of the cervical orifice can be adjusted according to requirements by injecting different amounts of liquid or gas into the closed cavity.

Drawings

Fig. 1 is a schematic view of the overall structure of a deformable cervical collar according to a first embodiment of the utility model;

fig. 2 is a side view of a deformable cervical collar in a first embodiment of the utility model;

fig. 3 is an exploded view of a deformable cervical collar according to a first embodiment of the utility model;

fig. 4 is a side view of the inner ring body 1 of a deformable cervical collar according to a first embodiment of the utility model;

fig. 5 is a top view of the inner ring body 1 of a deformable cervical collar according to a first embodiment of the utility model.

It is to be understood that the drawings of the present invention are for illustrative purposes only and, unless otherwise indicated, are not to scale.

Reference numerals:

1 an inner ring body; 2 outer ring body; 3, a valve body; 11, looping and binding the track; 12, a hollow snare; 13 a first outer side wall; 14 a first inner side wall; 21 a second outer side wall; 22 a second inner side wall; 23 inner space.

Detailed Description

In the following description, numerous technical details are set forth in order to provide a better understanding of the present application. However, it will be understood by those skilled in the art that the technical solutions claimed in the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

A first embodiment of the utility model relates to a deformable cervical collar.

Fig. 1-5 are schematic structural views of the deformable cervical collar.

First, it is noted that, as used herein, the term "inner" refers to the direction in which the cervical holder is closer to the cervical os, and "outer" refers to the direction in which the cervical holder is farther from the cervical os, in use.

Specifically, as shown in fig. 1-5, the deformable cervical collar comprises: an inner ring body 1, an outer ring body 2 and a valve body 3;

the inner ring body 1 is a hollow ring body, and the inner ring body 1 surrounds and defines a hollow snare 12 for snaring the cervix.

The outer ring body 2 is a hollow ring body, and the outer ring body 2 surrounds and defines a cylindrical inner space 23.

As further shown in fig. 1, the inner ring body 1 is located in the inner space 23 of the outer ring body 2; the inner ring body 1 and the outer ring body 2 are joined together to define a closed chamber (not shown).

As shown in fig. 3 and 4, the inner ring body 1 includes a first outer side wall 13 and a first inner side wall 14, the first outer side wall 13 is inwardly recessed and the first inner side wall 14 is inwardly arched, thereby defining a cerclage track 11.

The outer ring body 2 comprises a second outer side wall 21 and a second inner side wall 22, the second inner side wall 22 surrounds and defines the inner space 23, and the second outer side wall 21 is arched outwards.

The inner ring body 1 is positioned in an inner space 23 defined by the second inner side wall 22 of the outer ring body 2, the outer ring body 2 is embedded in the cerclage track 11, and the closed chamber is defined between the first outer side wall 13 and the second inner side wall 22.

The valve body 3 is mounted on the outer ring body 2 and is in fluid communication with the closed chamber.

Wherein, under the action of the same force, the deformation of the inner ring body 1 is larger than that of the outer ring body 2.

Specifically, the inner ring body 1 is made of soft material and is easy to deform after being stressed; the outer ring body 2 is hard and is not easy to deform after being stressed.

In the present embodiment, it is preferable that the inner ring body 1 is made of a soft medical silicone material, and the outer ring body 2 is made of a hard medical silicone material.

In the present embodiment, the valve body 3 is preferably a check valve.

The first end of the valve body 3 is fixed to the second outer side wall 21 of the outer ring body 2, and the second end of the valve body 3 extends into the closed chamber.

Further, preferably, a first end of the valve body 3 is adapted to an injection head of a syringe, and a second end of the valve body 3 is in a wedge-shaped structure. Moreover, the valve body 3 is made of a fully soft material, for example, the valve body 3 is made of a soft medical silica gel material.

In the process of clinical use, the deformable cervical supporting ring is sleeved on the cervical opening of a patient, so that the cervical opening is sleeved in the hollow snare 12. Then an injection head of the injector is connected with the first end of the valve body 3, and liquid or gas is injected into the closed cavity through the one-way valve body 3 by the injector. Since the inner ring body 1 is more easily deformed than the outer ring body 2 by the same pressure, the pressure of the liquid or gas injected into the sealed chamber is mainly transmitted to the inner ring body 1 to generate a pressing force in the inward (i.e., hollow snare 12) direction, thereby locking the cervix.

By utilizing the deformable cervical support, the shape of the cervical orifice can be adjusted according to requirements by injecting different amounts of liquid or gas into the closed cavity.

It is to be noted that in the claims and the description of the present patent, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element.

While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.

Claims (10)

1. A deformable cervical collar, comprising: an inner ring body (1), an outer ring body (2) and a valve body (3);

the inner ring body (1) is a hollow ring body, and the inner ring body (1) surrounds to define a hollow snare (12) for snaring the cervix;

the outer ring body (2) is a hollow ring body, and the outer ring body (2) surrounds and defines a cylindrical inner space (23);

the inner ring body (1) is located in the inner space (23) of the outer ring body (2); the inner ring body (1) and the outer ring body (2) are jointed together to jointly define a closed chamber;

the valve body (3) is arranged on the outer ring body (2) and is communicated with the closed cavity in a fluid mode;

wherein, under the action of the force with the same magnitude, the deformation of the inner ring body (1) is larger than that of the outer ring body (2).

2. A deformable cervical collar according to claim 1, characterized in that the inner ring (1) comprises a first outer side wall (13) and a first inner side wall (14), the first outer side wall (13) being inwardly concave and the first inner side wall (14) being inwardly arched, defining a cerclage track (11).

3. A deformable cervical collar according to claim 2, characterized in that the outer ring (2) comprises a second outer lateral wall (21) and a second inner lateral wall (22), the second inner lateral wall (22) delimiting the inner space (23) in a surrounding manner, the second outer lateral wall (21) being arched outwards.

4. A deformable cervical collar according to claim 3, characterized in that the outer ring (2) is embedded in the cerclage track (11), the first outer side wall (13) and the second inner side wall (22) defining the closed chamber therebetween.

5. A deformable cervical collar according to claim 1, characterized in that the valve body (3) is a one-way valve.

6. A deformable cervical collar according to claim 5, characterized in that the first end of the valve body (3) is fixed to the second outer lateral wall (21) of the outer ring (2) and the second end of the valve body (3) protrudes into the closed chamber.

7. A deformable cervical collar according to claim 6, characterized in that the first end of the valve body (3) is adapted to the injector head of a syringe and the second end of the valve body (3) is wedge-shaped.

8. A deformable cervical collar according to claim 1, characterized in that the inner ring body (1) is made of soft medical silicone material.

9. A deformable cervical collar according to claim 1, characterized in that the outer ring (2) is made of a hard medical silicone material.

10. A deformable cervical collar according to claim 1, characterized in that the valve body (3) is made of soft medical silica gel material.

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