Uterine cavity compression hemostasis device

Abstract

The invention provides a uterine cavity compression hemostasis device which comprises a uterine cavity compression body and a connecting pipe, and the uterine cavity compression body is connected with the outside through the connecting pipe; the connecting pipe comprises a uterine cavity connecting through pipe, and a guide-in supporting spring is arranged in the uterine cavity connecting through pipe. The uterine cavity compression body is made of degradable polyurethane, gelatin, chitosan and / or polylactic acid and has a compressed state and an expanded state, when the uterine cavity compression body is not used, the uterine cavity compression body is in the compressed state and wraps the outer wall of the connecting pipe, and when the uterine cavity compression body is used, the uterine cavity compression body can absorb liquid to expand and is converted into the expanded state; the uterine cavity compression body is designed to be made of an expandable material, the limitation of the shape of a traditional uterine cavity compression balloon can be solved when the balloon is used, the balloon can be expanded and formed according to the individualized characteristic of the uterine cavity, and the effect of adherent compression in the uterine cavity is achieved; and degradable materials are used, so that the safety is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a uterine cavity compression hemostasis device. Background Art

[0002] Postpartum hemorrhage is a serious complication during childbirth and the leading cause of maternal death. When postpartum hemorrhage occurs, it is usually urgent and difficult to deal with. The most common cause of postpartum hemorrhage is uterine atony. This type of bleeding is characterized by rapid bleeding, large amount of bleeding, diffuse bleeding points, difficult exposure, and inability to stop bleeding under direct vision. When conventional conservative hemostasis is ineffective, emergency surgery is required to remove the uterus, resulting in organ loss and lifelong infertility.

[0003] In recent years, intrauterine balloon compression has gradually become a preferred solution for treating postpartum hemorrhage. By injecting water into the balloon, the balloon is continuously expanded, so that it compresses and stops bleeding at the bleeding site in the uterine cavity. In the prior art, intrauterine compression balloons are generally made of rubber or plastic materials. In order to achieve better compression and hemostasis effects, they are often designed into a triangular or inverted pear shape according to the shape of the uterus. However, due to the different shapes of uteri in different people, it is difficult for the intrauterine balloon to fit the patient's uterine wall, resulting in poor compression and hemostasis effects. Clinically, better compression and hemostasis effects can be achieved by filling gauze, because it can be filled and compressed according to the characteristics of the uterine cavity, so there is an urgent need for a compression balloon that can be changed according to the patient's uterine cavity conditions. Summary of the invention

[0004] In view of the above-mentioned technical problems, the technical solution of the present invention designs a uterine cavity compression hemostasis device, in which the uterine cavity compression body is designed to be an expandable material, which can solve the limitations of the shape of the traditional uterine cavity compression balloon when used, and can be expanded into shape according to the individual characteristics of the uterine cavity to achieve the effect of wall compression in the uterine cavity; and the use of degradable materials is safer.

[0005] Specifically, the present invention provides a uterine cavity compression hemostasis device, including a uterine cavity compression body and a connecting tube, wherein the uterine cavity compression body is connected to the outside through the connecting tube; the connecting tube includes a uterine cavity connecting tube, and an introduction support spring is arranged in the uterine cavity connecting tube; the uterine cavity compression body is made of degradable polyurethane, gelatin, chitosan and / or polylactic acid, and has a compressed state and an expanded state. When the uterine cavity compression body is not in use, it is in a compressed state and is wrapped on the outer wall of the connecting tube. When the uterine cavity compression body is in use, it can absorb liquid and expand, and turn into an expanded state. The volume ratio of the expanded state of the uterine cavity compression body to its compressed state is (30-60):1.

[0006] The technical solution of the present invention is further optimized and further comprises a uterine cavity balloon, wherein the uterine cavity balloon is connected to the connecting tube, and the uterine cavity compression body is arranged on the outside of the uterine cavity balloon.

[0007] The technical solution of the present invention is further optimized, and the thickness of the uterine cavity compression body is 0.2-0.6mm.

[0008] The technical solution of the present invention is further optimized, the uterine cavity compression body is in a compressed state and is strip-shaped, and is spirally wound around the outside of the uterine cavity connecting tube, and one end of the uterine cavity compression body is fixedly connected to the uterine cavity connecting tube.

[0009] The technical solution of the present invention is further optimized, and the compressed state of the uterine cavity compression body is strip-shaped, and the strip-shaped uterine cavity compression body is arranged along the length direction of the uterine cavity connecting tube.

[0010] The technical solution of the present invention is further optimized, and the width of the uterine cavity compression body is 0.4-0.8mm.

[0011] The technical solution of the present invention is further optimized and also includes a protective film arranged on the outside of the uterine cavity compression body, the protective film is made of rubber latex material, and the uterine cavity connecting channel is provided with a water injection hole on the side wall corresponding to the uterine cavity compression body, and the uterine cavity connecting channel includes a water injection channel and a drainage channel.

[0012] Compared with the prior art, the advantages of the technical solution of the present invention are: By configuring the intrauterine compression hemostasis device as a connecting tube and an expandable intrauterine compression body, the structure of the intrauterine compression hemostasis device can be simplified and the use can be more convenient. The device only needs to be delivered into the uterine cavity, and then water injection or expansion of the intrauterine compression body can be selected according to the intrauterine bleeding situation to achieve the compression hemostasis effect. The operation is simple and easy to use.

[0013] Combining the intrauterine balloon with the expandable intrauterine compression body can achieve rapid expansion, and compared with the existing intrauterine balloon compression hemostasis device, it can better fit the uterine cavity wall and achieve a better hemostasis effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0015] Figure 1 It is a schematic structural diagram of an embodiment of a uterine cavity compression hemostasis device having a uterine cavity balloon in the technical solution of the present invention; Figure 2 It is a schematic diagram of the structure of the uterine cavity compression body arranged along the length direction of the connecting tube in the technical solution of the present invention; Figure 3It is a structural schematic diagram of the uterine cavity compression body spirally arranged on the connecting tube in the technical solution of the present invention.

[0016] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale.

[0017] Description of labels: 1-connecting tube; 2-uterine cavity compression body; 3-uterine cavity balloon. DETAILED DESCRIPTION

[0018] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, but does not exclude the situation of including at least one.

[0020] It should also be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the product or system including the elements. In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] The following will be combined with the attached Figure 1-3 The present invention is further described.

[0022] With the advancement of medical technology, there are more and more directions in which medical devices can be improved, providing patients with more choices. The present technical solution has made improvements on the traditional intrauterine compression balloon and designed an intrauterine compression hemostasis device, including an intrauterine compression body 2 and a connecting tube 1, wherein the intrauterine compression body 2 is connected to the outside through the connecting tube 1; the connecting tube 1 includes an intrauterine connecting tube, which can be a drainage channel or a channel for injecting physiological saline; at the same time, during introduction, an introduction support spring is arranged in the intrauterine connecting tube, which can serve as an introduction support channel; by making the intrauterine compression body 2 of degradable polyurethane, gelatin, chitosan and / or polylactic acid, a variety of choices can be provided while ensuring safety, and the above-mentioned degradable materials all have a high expansion ratio, and have a compressive strength when used. The uterine cavity compression body 2 has a contracted state and an expanded state. Specifically, when the uterine cavity compression body 2 is not in use, it is in a compressed state and is wrapped around the outer wall of the connecting tube 1. When the uterine cavity compression body 2 is in use, it can absorb liquid and expand (it can absorb blood in the uterus or inject physiological saline through the connecting tube 1) and turn into an expanded state. Preferably, in the present technical solution, the volume ratio of the expanded state volume of the uterine cavity compression body 2 to its compressed state is (30-60): 1, wherein the material of the uterine cavity compression body 2 can be made of a single material selected from polyurethane, gelatin, chitosan and / or polylactic acid, or a combination of multiple materials. When multiple materials are used, they can be arranged in layers. For example, when using gelatin and polyurethane, the compressed gelatin is used to wrap the connecting tube 1, and then a layer of compressed polyurethane material is wrapped around the outside of the gelatin.

[0023] like Figure 1As shown, an implementation method of the present technical solution is to further provide a uterine cavity balloon 3 on the basis of the above solution, and the uterine cavity balloon 3 is connected to the connecting tube 1, which is similar to the uterine cavity compression hemostatic balloon in the prior art, and the prior art of CN215018261U can be referred to, but in the present technical solution, it is possible to choose not to provide a drainage tube, and to provide the uterine cavity compression body 2 on the outside of the uterine cavity balloon 3, and to provide an expansion layer, and when in use, the uterine cavity compression hemostatic device is introduced into the uterine cavity, and the outer layer of the uterine cavity compression body 2 absorbs the blood and water in the uterine cavity to expand, and at the same time, water is injected into the uterine cavity balloon 3 through the connecting tube 1 to expand it, thus ensuring the strength of the support of the uterine cavity compression hemostatic device, and also ensuring full contact and compression with the inner wall of the uterine cavity, and will not cause the problem of local compression due to the inherent shape of the uterine cavity balloon 3. In this embodiment, the uterine cavity balloon 3 can provide support for the outer layer of the expandable uterine cavity compression body 2, so that the compression strength is higher and the compression effect is better. The thickness of the uterine cavity compression body 2 is preferably 0.2-0.6 mm, so that when in use, the outer part of the uterine cavity balloon 3 can have an inflatable and deformable structure of more than 5 mm, which will not affect the compression effect of fitting with the inner wall of the uterine cavity. In addition, this embodiment is easy to remove, and the uterine cavity balloon 3 can be shrunk first to make the whole part smaller and removed.

[0024] Based on the above embodiments, Figure 2 As shown, in one embodiment, the uterine cavity compression body 2 is in a compressed state in a strip shape, and is spirally wound on the outside of the uterine cavity connecting tube 1, and one end of the uterine cavity compression body 2 is fixedly connected to the uterine cavity connecting tube 1. By designing the uterine cavity compression body 2 in a strip shape, it can be conveniently wrapped on the connecting tube 1, and the adjacent strips are separately arranged, so that the water absorption efficiency in the uterine cavity is higher, the expansion speed is faster, and the shape after collision is more plastic. In this embodiment, the strip-shaped uterine cavity compression body 2 is spirally wound, and one end of the strip is fixedly connected to the connecting tube 1. The fixing method can be knotting, gluing or fixing with a rivet tool. This design is mainly to facilitate the removal of the uterine cavity compression hemostatic device, because its volume will increase after expansion in the uterine cavity, which is inconvenient to take out directly. Through the strip design and spiral winding, the expanded uterine cavity compression body 2 can be pulled out sequentially through the connecting tube 1 when taking it out.

[0025] Based on the above embodiments, Figure 3 As shown, the uterine cavity compression body 2 is in a strip-shaped state in compression, and the strip-shaped uterine cavity compression body is arranged along the length direction of the uterine cavity connecting tube 1, and the end of the strip-shaped uterine cavity compression body 2 away from the vagina is fixedly connected to the connecting tube 1. Preferably, the width of the uterine cavity compression body 2 is 0.4-0.8mm, and the width can be adjusted according to the diameter of the connecting tube 1 or the connecting tube 1 with the uterine cavity balloon 3.

[0026] In the technical solution of the present application, a protective film is further provided on the outside of the uterine cavity compression body 2, and the protective film is made of rubber latex material. A water injection hole is opened on the side wall of the uterine cavity connection channel corresponding to the uterine cavity compression body 2, and the uterine cavity connection channel includes a water injection channel and a drainage channel. In this embodiment, a protective film is provided to cooperate with the water injection hole and the drainage channel structure to separate the compression hemostasis device from the uterine cavity. Because the size of the uterine cavity of each patient is different, and the expansion size of the compression hemostasis device is fixed, excessive expansion will damage the uterus. For patients with relatively large bleeding, the uterine cavity compression body 2 will continue to absorb blood and water, and the expansion size cannot be controlled. Through the protective film and the water injection channel, the water absorption of the uterine cavity compression body 2 can be controlled, and then the expansion size can be controlled, which is safer to use. In addition, because the uterine cavity compression body 2 absorbs water and expands, the body fluid in the vagina will also cause it to swell during introduction, which increases the difficulty of introducing into the uterus. The introduction can be facilitated by providing a protective film.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A uterine cavity compression hemostasis device, characterized in that: It includes a uterine cavity compression body and a connecting tube, wherein the uterine cavity compression body is connected to the outside through the connecting tube; the connecting tube includes a uterine cavity connecting tube, wherein an introduction support spring is arranged inside the uterine cavity connecting tube; the uterine cavity compression body is made of degradable polyurethane, gelatin, chitosan and / or polylactic acid, and has a compressed state and an expanded state. When the uterine cavity compression body is not in use, it is in a compressed state and is wrapped on the outer wall of the connecting tube. When the uterine cavity compression body is in use, it can absorb liquid and expand, and turn into an expanded state. The volume ratio of the expanded state of the uterine cavity compression body to its compressed state is (30-60):

1.

2. The intrauterine compression hemostasis device according to claim 1, characterized in that: It also includes a uterine cavity balloon, which is connected to the connecting tube, and the uterine cavity compression body is arranged outside the uterine cavity balloon.

3. The intrauterine compression hemostasis device according to claim 2, characterized in that: The thickness of the uterine cavity compression body is 0.2-0.6 mm.

4. The intrauterine compression hemostasis device according to claim 1, characterized in that: The uterine cavity compression body is in a compressed state and is strip-shaped, and is spirally wound around the outside of the uterine cavity connecting tube. One end of the uterine cavity compression body is fixedly connected to the uterine cavity connecting tube.

5. The intrauterine compression hemostasis device according to claim 2, characterized in that: The uterine cavity compression body is in a strip-shaped state in compression, and the strip-shaped uterine cavity compression body is arranged along the length direction of the uterine cavity connecting tube.

6. The intrauterine compression hemostasis device according to claim 5, characterized in that: The width of the uterine cavity compression body is 0.4-0.8 mm.

7. The intrauterine compression hemostasis device according to claims 1-6, characterized in that: It also includes a protective film arranged on the outside of the uterine cavity compression body, the protective film is made of rubber latex material, the uterine cavity connecting channel is provided with a water injection hole on the side wall corresponding to the uterine cavity compression body, and the uterine cavity connecting channel includes a water injection channel and a drainage channel.

Images