Absorbable biological scaffold for preventing intrauterine adhesion

Abstract

The utility model discloses an absorbable biological stent for preventing intrauterine adhesion in the technical field of intrauterine stents, which comprises a biological absorbable stent, the biological absorbable stent comprises two groups of inclined support rods which are symmetrically arranged, the close ends of the two groups of inclined support rods are connected through a first bending section which is integrally formed, and the two groups of inclined support rods are connected through a second bending section which is integrally formed. Inverted elastic supporting parts are integrally formed at the far ends of the two sets of inclined supporting rods, each elastic supporting part comprises a first supporting rod which is integrally formed and connected with the ends of the inclined supporting rods through a second bent section, and the end, away from the second bent section, of each first supporting rod is integrally formed and connected with a second supporting rod through a third bent section. The vertical distance between the end, connected with the second bent section, of the first supporting rod and the inclined supporting rod is smaller than the vertical distance between the end, connected with the third bent section, of the first supporting rod and the inclined supporting rod and the vertical distance between the end, connected with the third bent section, of the first supporting rod and the inclined supporting rod. And the balloon made of the plastic silica gel material needs to be taken out after being used, so that secondary injury is easily caused to the patient.

Description

Technical Field

[0001] The utility model relates to the technical field of uterine cavity stents, in particular to an absorbable biological stent for preventing uterine cavity adhesion. Background Art

[0002] Intrauterine adhesions are caused by trauma to the pregnant or non-pregnant uterus, which damages the basal layer of the endometrium and partially or completely blocks the uterine cavity, leading to menstrual abnormalities, infertility, or recurrent miscarriage. Discovery of intrauterine adhesions requires prompt surgery. Following surgery, a stent is placed in the uterine cavity. This stent is placed after intrauterine adhesion separation surgery to prevent the separated tissue from re-adhesion.

[0003] Existing anti-uterine adhesion stents are usually balloons made of plastic silicone material. The plastic silicone balloon needs to be removed after use, which can easily cause secondary damage to the patient and is not conducive to people's use. Therefore, those skilled in the art provide an anti-uterine adhesion absorbable biological stent to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide an absorbable biological stent for preventing intrauterine adhesions, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an absorbable bio-stent for preventing intrauterine adhesions, comprising a bio-absorbable stent, wherein the bio-absorbable stent comprises two groups of symmetrically arranged diagonal struts, the adjacent ends of the two groups of diagonal struts are connected by an integrally formed first bending section, and the distal ends of the two groups of diagonal struts are both integrally formed with an inverted elastic support portion.

[0006] Preferably, the elastic support portion includes a first support rod whose end portion is integrally connected to the second support rod through a second bending section, and one end of the first support rod away from the second bending section is integrally connected to the second support rod through a third bending section.

[0007] Preferably: the vertical distance between the connecting end of the first strut and the second bending section and the diagonal strut is smaller than the vertical distance between the connecting end of the first strut and the third bending section and the diagonal strut, and the vertical distance between the connecting end of the second strut and the third bending section and the diagonal strut is greater than the vertical distance between the free end of the second strut and the diagonal strut.

[0008] Preferably, the bioabsorbable stent is provided with two layers, an upper layer and an lower layer, and the two layers of the bioabsorbable stent are connected by multiple groups of bioabsorbable vertical rods.

[0009] Preferably: a bioabsorbable vertical rod is connected between the upper and lower groups of the first bending sections, and a bioabsorbable vertical rod is connected between the middle parts of the upper and lower groups of the diagonal struts, between the upper and lower groups of the second bending sections, between the upper and lower groups of the third bending sections, and between the free ends of the upper and lower groups of the second struts.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. In the present invention, a bioabsorbable stent is provided with an overall outline consisting of two groups of symmetrical oblique struts, a first strut and a second strut, and the two groups of rods are connected by a bending section. The overall shape of the device is highly compatible with the patient's uterine cavity, which is convenient for improving the actual anti-uterine adhesion effect of the stent, and the stent has a certain elasticity that is conducive to actual installation. A double-layer bioabsorbable stent is further provided, and the two layers of bioabsorbable stents are connected by multiple groups of bioabsorbable vertical rods. The overall strength angle of the stent and the stent have a certain height, which can improve the effect of preventing uterine adhesion, etc., and the overall material of the component can be directly absorbed by the patient, and the component does not need to be disassembled after use, which can improve the safety of the stent. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] In the figure: 1, diagonal strut; 2, first bending section; 3, second bending section; 4, first strut; 5, third bending section; 6, second strut; 7, bioabsorbable vertical rod. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0015] See also Figure 1 In an embodiment of the utility model, an absorbable bio-stent for preventing uterine adhesions includes a bio-absorbable stent, which includes two groups of symmetrically arranged diagonal struts 1. The proximal ends of the two groups of diagonal struts 1 are connected by an integrally formed first bending section 2, and the distal ends of the two groups of diagonal struts 1 are both integrally formed with an inverted elastic support portion.

[0016] The bioabsorbable stent as a whole can be made mainly of materials including magnesium alloy and polylactic acid. It is also made of bioabsorbable vascular stent materials in the existing technology. The combination of magnesium alloy and polylactic acid materials makes the bioabsorbable stent have higher support strength and lower use risk compared to balloons made of traditional gold plastic silicone materials. After the bioabsorbable stent as a whole provides the necessary support, it can also be completely absorbed by the human body, effectively avoiding the long-term retention of the component in the patient's body, thereby reducing any possible adverse effects.

[0017] The bioabsorbable material has a certain toughness, and the two groups of diagonal support rods 1 make it easy for the component to adapt to the shape of the uterine cavity. The bioabsorbable stent includes an elastic support part and a first bending section 2, so that the overall component has elasticity concentrated in the middle. When installing, the bioabsorbable stent is folded to facilitate the installation of the component, and the elastic support part fills the space between the two groups of diagonal support rods 1, which facilitates improving the actual efficiency of the device in preventing uterine adhesions.

[0018] In one embodiment, specifically, the elastic support portion includes a first strut 4 integrally connected to the end of the diagonal strut 1 through a second bending section 3, and the end of the first strut 4 away from the second bending section 3 is integrally connected to the second strut 6 through a third bending section 5, wherein the vertical spacing between the connecting end of the first strut 4 and the second bending section 3 and the diagonal strut 1 is smaller than the vertical spacing between the connecting end of the first strut 4 and the third bending section 5 and the diagonal strut 1, and the vertical spacing between the connecting end of the second strut 6 and the third bending section 5 and the diagonal strut 1 is larger than the vertical spacing between the free end of the second strut 6 and the diagonal strut 1, and the bending sections all have a certain bending elasticity, which facilitates the contraction and expansion of the components, and the two groups of first struts 4, second struts 6 and diagonal struts 1 constitute the overall shape of the bracket, and the combined shape has a high degree of adaptability to the uterine cavity, which is convenient for providing a good anti-uterine adhesion effect.

[0019] Furthermore, the bioabsorbable stent is provided with two layers, an upper layer and an lower layer, and the two layers of bioabsorbable stents are connected by multiple groups of bioabsorbable vertical rods 7, wherein the bioabsorbable vertical rods 7 are connected between the upper and lower groups of first bending sections 2, and the corresponding bioabsorbable vertical rods 7 are connected between the middle parts of the upper and lower groups of diagonal struts 1, between the upper and lower groups of second bending sections 3, between the upper and lower groups of third bending sections 5, and between the free ends of the upper and lower groups of second struts 6.

[0020] The two layers of bioabsorbable stents are of moderate height, which is convenient for expanding the patient's uterine cavity and providing good anti-uterine adhesion effect. There are multiple groups of bioabsorbable vertical rods 7 connected between the two layers of bioabsorbable stents, which can enhance the overall strength of the stent. It is not easy to deform during use, ensuring the normal use of the stent. The bioabsorbable vertical rods 7 and the bioabsorbable stent are supported by the same material, which is convenient for patients to absorb.

[0021] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An absorbable bio-scaffold for preventing intrauterine adhesions, characterized by: The invention comprises a bioabsorbable stent, wherein the bioabsorbable stent comprises two groups of symmetrically arranged oblique support rods (1), the proximal ends of the two groups of oblique support rods (1) are connected by an integrally formed first bending section (2), and the distal ends of the two groups of oblique support rods (1) are integrally formed with an inverted elastic support portion.

2. The absorbable bio-scaffold for preventing intrauterine adhesions according to claim 1, characterized in that: The elastic support portion comprises a first support rod (4) integrally connected to the end of the oblique support rod (1) via a second bending section (3); and an end of the first support rod (4) away from the second bending section (3) is integrally connected to a second support rod (6) via a third bending section (5).

3. The absorbable bio-scaffold for preventing intrauterine adhesions according to claim 2, characterized in that: The vertical distance between the connecting end of the first brace (4) and the second bending section (3) and the diagonal brace (1) is smaller than the vertical distance between the connecting end of the first brace (4) and the third bending section (5) and the diagonal brace (1), and the vertical distance between the connecting end of the second brace (6) and the third bending section (5) and the diagonal brace (1) is larger than the vertical distance between the free end of the second brace (6) and the diagonal brace (1).

4. The absorbable bio-scaffold for preventing intrauterine adhesions according to claim 3, characterized in that: The bioabsorbable stent is provided with two layers, an upper layer and an lower layer, and the two layers of the bioabsorbable stent are connected by multiple groups of bioabsorbable vertical rods (7).

5. The absorbable bio-scaffold for preventing intrauterine adhesions according to claim 4, characterized in that: A bioabsorbable vertical rod (7) is connected between the upper and lower groups of the first bending sections (2), and a bioabsorbable vertical rod (7) is connected between the middle parts of the upper and lower groups of the oblique support rods (1), between the upper and lower groups of the second bending sections (3), between the upper and lower groups of the third bending sections (5), and between the free ends of the upper and lower groups of the second support rods (6).

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