Anti-fall-off Manimonle contraceptive ring

Abstract

The utility model discloses an anti-falling Mesyle contraceptive ring which comprises a T-shaped support and a storage tube connected with the T-shaped support, the T-shaped support comprises a trunk and two supporting rods, the trunk is provided with a near-side end and a far-side end, the far-side end is connected with the storage tube, each supporting rod comprises an elastic metal sheet and a plastic sleeve, the plastic sleeve is connected to the near-side end, and the elastic metal sheets are connected with the storage tube. And the elastic metal sheet is embedded in the plastic sleeve. The elasticity and the stability of the supporting rod are improved through the elastic metal sheet, the structural integrity of the Munyule contraceptive ring is ensured, the Munyule contraceptive ring can better adapt to the shape of the Munyule contraceptive ring in the uterus, the correct position of the Munyule contraceptive ring can be maintained, and displacement or falling of the Munyule contraceptive ring is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, more particularly, to a anti-falling Mirena intrauterine device. BACKGROUND

[0002] Mirena intrauterine device is a highly effective intrauterine contraceptive system, which mainly prevents the implantation of fertilized eggs by releasing progestin levonorgestrel, thereby achieving the effect of contraception. Mirena intrauterine device is composed of a small and flexible T-shaped plastic frame, and a storage reservoir is wrapped around the longitudinal arm, which can stably release a low dose of drug into the uterine cavity.

[0003] The service life of Mirena intrauterine device is 5 years, which is particularly suitable for women seeking long-acting contraception. It not only provides a success rate of more than 99% in contraception, but also significantly reduces menstrual flow and relieves dysmenorrhea.

[0004] However, the Mirena intrauterine device of the prior art is placed in the uterine cavity, and due to long-term mechanical stress and chemical corrosion, the structural integrity of the Mirena intrauterine device is reduced, which may cause the Mirena intrauterine device to move downward or even fall off, thereby causing complications.

[0005] Therefore, the prior art needs to be improved. CONTENT OF THE UTILITY MODEL

[0006] The purpose of the present application is to provide an anti-falling Mirena intrauterine device, which aims to solve the technical problem of easy falling of Mirena intrauterine device in the prior art.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present application is:

[0008] The present application provides an anti-falling Mirena intrauterine device, comprising a T-shaped support and a storage tube connected to the T-shaped support, wherein the T-shaped support comprises:

[0009] a main stem having a proximal end and a distal end, the distal end being connected to the storage tube;

[0010] two support rods, the support rod comprising an elastic metal sheet and a plastic sleeve, the plastic sleeve being connected to the proximal end, and the elastic metal sheet being embedded in the plastic sleeve.

[0011] In one embodiment, the elastic metal sheet is connected with an extension, and the extension forms a T-shaped structure with the two elastic metal sheets, and the extension is used to connect with the proximal end.

[0012] In one embodiment, the elastic metal sheet comprises the following structure:

[0013] A shape memory alloy sheet is embedded in the plastic sleeve.

[0014] In one embodiment, the shape memory alloy sheet comprises one of the following structures:

[0015] A nickel-titanium memory alloy sheet, a copper-nickel memory alloy sheet or a copper-aluminum memory alloy sheet.

[0016] In one embodiment, the shape memory alloy sheet has a thickness of 1-2 mm.

[0017] In one embodiment, the elastic metal sheet comprises one of the following structures:

[0018] An elastic copper sheet, an elastic stainless steel sheet, an elastic aluminum sheet or an elastic iron sheet.

[0019] In one embodiment, the plastic sleeve tail is provided with a support protrusion.

[0020] In one embodiment, the support protrusion comprises a curved surface body located on one side of the plastic sleeve tail close to the main stem.

[0021] In one embodiment, a fastening assembly is further included, which comprises a connecting line and a fixed knot, one end of the connecting line being connected to the intersection of the two support rods, and the other end of the connecting line being connected to the fixed knot.

[0022] In one embodiment, the connecting line comprises a nylon line, one end of the nylon line being connected to the intersection of the two support rods, and the other end of the nylon line being connected to the fixed knot, and the nylon line and the fixed knot are integrally formed.

[0023] The application provides a beneficial effect of preventing the NuvaRing from falling off, at least in that:

[0024] The application discloses a NuvaRing preventing falling off, comprising a T-shaped support and a storage tube connected with the T-shaped support, wherein the T-shaped support comprises a main stem and two support rods, the main stem has a proximal end and a distal end, the distal end is connected with the storage tube, the support rod comprises an elastic metal sheet and a plastic sleeve, the plastic sleeve is connected to the proximal end, and the elastic metal sheet is embedded in the plastic sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0026] Figure 1 The structural schematic diagram of the anti-dislodgement NuvaRing provided by the embodiments of the present application is shown in the figure.

[0027] Figure 2 The sectional structural schematic diagram of the support rod provided by the embodiments of the present application is shown in the figure.

[0028] Figure 3 The structural schematic diagram of the specific embodiment of the anti-dislodgement NuvaRing provided by the embodiments of the present application is shown in the figure.

[0029] In the figure, various reference signs are as follows:

[0030] 100, T-shaped support; 200, main stem; 300, support rod; 400, storage tube; 500, tail line; 600, fastening assembly; 310, elastic metal sheet; 320, plastic sleeve; 330, extension; 321, support protrusion; 610, connecting line; 620, fixed knot. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0032] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component. The terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or position shown in the drawings, and are only for the convenience of description, and cannot be understood as a limitation on the technical solutions. The terms "first", "second" are only for the convenience of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0033] In the prior art, the shape of the Liletta contraceptive ring is T-shaped, which is composed of a small and flexible T-shaped plastic support. A storage reservoir is arranged around the main stem 200 of the T-shaped plastic support, and the storage reservoir stores levonorgestrel, a progestogen, which can stably and slowly release the drug into the uterine cavity through the storage reservoir to achieve contraceptive effect and treat related diseases. However, due to long-term mechanical stress and chemical corrosion, the structural integrity of the Liletta contraceptive ring is reduced, and the Liletta contraceptive ring may move downward or even fall off.

[0034] To solve the above problems, in the embodiments of the present application, an anti-falling Liletta contraceptive ring is provided, which is embedded with an elastic metal sheet 310 in the support rod 300 of the Liletta contraceptive ring to enhance the elasticity and stability of the support rod 300, ensure the structural integrity of the Liletta contraceptive ring, and make the Liletta contraceptive ring maintain the correct position, avoiding displacement or falling off of the Liletta contraceptive ring.

[0035] Please refer to Figure 1 and Figure 2 In the embodiments, the anti-falling Liletta contraceptive ring comprises a T-shaped support 100 and a storage tube 400 connected with the T-shaped support 100, wherein the T-shaped support 100 comprises a main stem 200 and two support rods 300, the main stem 200 has a proximal end and a distal end, the distal end is connected with the storage tube 400, the support rod 300 comprises an elastic metal sheet 310 and a plastic sleeve 320, the plastic sleeve 320 is connected to the proximal end, and the elastic metal sheet 310 is embedded in the plastic sleeve 320.

[0036] Due to the complex environment of the uterine cavity, long-term mechanical stress and chemical corrosion in the uterine cavity may cause the support rod 300 of the Liletta contraceptive ring to deform, resulting in a decrease in the structural integrity of the Liletta contraceptive ring, so that the two support rods 300 cannot be fixed in the uterine cavity.

[0037] It can be understood that the T-shaped support 100 is connected with the storage tube 400, the storage tube 400 can store levonorgestrel, the tail line 500 is arranged at the tail of the T-shaped support 100, and the tail line 500 is used for guiding and operating the NuvaRing during placement and removal. The T-shaped support 100 adopts an elastic structure, and the two support rods 300 are symmetrically connected to the proximal end of the stem 200. When the anti-falling NuvaRing is placed in the uterine cavity, the anti-falling NuvaRing is fixed in the uterine cavity through the support rod 300, and the support rod 300 includes an elastic metal sheet 310 and a plastic sleeve 320. The elastic metal sheet 310 is embedded in the plastic sleeve 320, and the elastic metal sheet 310 can adapt to the complex uterine cavity environment by using the elastic deformation of the metal. The elastic metal sheet 310 is embedded in the plastic sleeve 320. On the one hand, the plastic sleeve 320 can isolate the elastic metal sheet 310, so that the elastic metal sheet 310 is in a relatively sealed environment, avoiding corrosion of the elastic metal sheet 310. On the other hand, the plastic sleeve 320 is soft and comfortable, and can improve comfort when contacting the uterine cavity. Therefore, the support rod 300 embedded in the plastic sleeve 320 through the elastic metal sheet 310 has a unique advantage, so that the anti-falling NuvaRing can better adapt to the shape in the uterus, and is not easy to fall off even when the uterus contracts or the body moves. The elastic metal sheet 310 can maintain the correct position of the support rod 300, thereby effectively releasing progestin and achieving the purpose of long-term contraception.

[0038] Therefore, the elastic metal sheet 310 improves the elasticity and stability of the support rod 300, ensures the integrity of the NuvaRing structure, so that the NuvaRing can better adapt to the shape in the uterus, and the NuvaRing can maintain the correct position, avoiding displacement or falling off of the NuvaRing.

[0039] Specifically, the plastic sleeve 320 is connected to the proximal end of the stem 200, and the plastic sleeve 320 and the stem 200 are made of the same material. The plastic sleeve 320 and the stem 200 are integrally formed, for example, the plastic sleeve 320 and the stem 200 can be integrally formed by pouring, and the elastic metal sheet 310 is sealed and wrapped.

[0040] Specifically, please refer to Figure 3 The elastic metal sheet 310 is connected with the extension 330, and the extension 330 forms a T-shaped structure with the two elastic metal sheets 310. The extension 330 is used for connecting with the proximal end of the stem 200.

[0041] In the embodiment, the extension 330 is connected with the two elastic metal sheets 310 to form a T-shaped structure, and the extension 330 can be understood as extending from the body to the proximal end of the stem 200, so that the upper part of the T-shaped support 100 is embedded with the elastic metal sheet 310, thereby enhancing the elasticity and stability of the T-shaped support 100, and ensuring the structural integrity of the T-shaped support 100 when the T-shaped support 100 is placed in the uterine cavity.

[0042] Specifically, referring to Figure 2 , the elastic metal sheet 310 includes the following structure: a shape memory alloy sheet embedded in the plastic sleeve 320.

[0043] In the embodiment, the shape memory alloy sheet has a unique shape memory effect, and can restore to the original shape after deformation under pressure. It can be understood that the shape memory alloy sheet can improve the adaptability and stability of the support rod 300, thereby enhancing the structural integrity of the T-shaped support 100 and ensuring the contraceptive effect of the T-shaped support 100 and the comfort of the patient. For example, natural contraction and rejection of the uterus can cause the T-shaped support 100 to gradually move, and if the support rod 300 is not corrected in the long run, it may eventually fall off. In the embodiment, the shape memory alloy sheet can be fully utilized to have a unique shape memory effect, and when the natural contraction of the uterus causes the support rod 300 to deform, the shape memory alloy sheet can automatically recover after being deformed under pressure, thereby achieving the purpose of automatic correction and enhancing the structural integrity of the T-shaped support 100.

[0044] Optionally, the shape memory alloy sheet includes one of the following structures:

[0045] A nickel-titanium memory alloy sheet, a copper-nickel memory alloy sheet, or a copper-aluminum memory alloy sheet.

[0046] For example, the shape memory alloy sheet can include a nickel-titanium memory alloy sheet, i.e., the shape memory alloy sheet is made of a nickel-titanium memory alloy, which is a material with unique shape memory function and super-elasticity, equivalent to embedding a nickel-titanium memory alloy sheet in the plastic sleeve 320 to enhance the structural integrity of the T-shaped support 100.

[0047] For example, the shape memory alloy sheet can include a copper-nickel memory alloy sheet, i.e., the shape memory alloy sheet is made of a copper-nickel memory alloy, which has excellent shape memory characteristics, equivalent to embedding a copper-nickel memory alloy sheet in the plastic sleeve 320 to enhance the structural integrity of the T-shaped support 100.

[0048] For example, the shape memory alloy sheet can also include a copper-aluminum memory alloy sheet, i.e. the shape memory alloy sheet is made of a copper-aluminum memory alloy, which has excellent shape memory characteristics, and is equivalent to embedding a copper-aluminum memory alloy sheet in the plastic sleeve 320 to enhance the structural integrity of the NuvaRing.

[0049] Specifically, the thickness of the shape memory alloy sheet is 1-2 mm. In this way, the shape memory alloy sheet can not only exhibit good shape memory effect, but also have sufficient structural strength and rigidity.

[0050] In another embodiment, referring to Figure 2 The elastic metal sheet 310 can include one of the following structures:

[0051] The elastic copper sheet, the elastic stainless steel sheet, the elastic aluminum sheet, or the elastic iron sheet.

[0052] For example, the elastic metal sheet 310 can include an elastic copper sheet, i.e. the elastic metal sheet 310 can be made of a copper sheet, which is equivalent to embedding an elastic copper sheet in the plastic sleeve 320 to enhance the structural integrity of the NuvaRing, and has low cost and is easy to implement.

[0053] For example, the elastic metal sheet 310 can include an elastic stainless steel sheet, i.e. the elastic metal sheet 310 can be made of stainless steel, which is equivalent to embedding an elastic stainless steel in the plastic sleeve 320, and has good corrosion resistance and elasticity, and is used to enhance the structural integrity of the NuvaRing, and has low cost and is easy to implement.

[0054] For example, the elastic metal sheet 310 can also include an elastic aluminum sheet or an elastic iron sheet, which is used to enhance the structural integrity of the NuvaRing, and has low cost and is easy to implement.

[0055] Specifically, the plastic sleeve 320 has a support protrusion 321 at the tail. The support protrusion 321 is used to be fixed in the uterine cavity, and when the NuvaRing is placed in the uterine cavity, the support rod 300 is fixed in the uterine cavity through the support protrusion 321 at the tail to ensure the stability of the NuvaRing.

[0056] Specifically, referring to Figure 1 The support protrusion 321 includes a curved surface, which is located at the tail of the plastic sleeve 320 close to the main stem 200. The curved surface is smooth, and when the NuvaRing is placed in the uterine cavity, the curved surface abuts against the uterine cavity, which can improve the comfort of use.

[0057] Specifically, referring to Figure 3The anti-displacement Manli Yue contraceptive ring further comprises a fastening assembly 600, which comprises a connecting wire 610 and a fixed knot 620.

[0058] In the embodiment, one end of the connecting wire 610 is connected to the intersection of the two support rods 300, and the other end of the connecting wire 610 is connected to the fixed knot 620. After the anti-displacement Manli Yue contraceptive ring is pushed into the uterine cavity, the fixed knot 620 can be implanted into the uterine muscle layer to further limit the position of the anti-displacement Manli Yue contraceptive ring and prevent the Manli Yue contraceptive ring from being displaced or falling off.

[0059] Specifically, referring to Figure 3 , the connecting wire 610 comprises a nylon wire, one end of the nylon wire is connected to the intersection of the two support rods 300, and the other end of the nylon wire is connected to the fixed knot 620, and the nylon wire and the fixed knot 620 are integrally formed.

[0060] In the embodiment, the nylon wire is used for being fixed in the uterus, which is equivalent to that the fixed knot 620 is knotted by the nylon wire, and the fixed knot 620 is similar to a “barb”, which firmly fixes the Manli Yue contraceptive ring in the uterine muscle. The nylon wire has good tensile force and tensile force, which can ensure the firmness and durability of the suture part of the Manli Yue contraceptive ring and the uterus, so as to prevent the Manli Yue contraceptive ring from being displaced or falling off.

[0061] In summary, the anti-displacement Manli Yue contraceptive ring disclosed in the application comprises a T-shaped support and a storage tube connected to the T-shaped support, wherein the T-shaped support comprises a main stem and two support rods, the main stem has a proximal end and a distal end, the distal end is connected with the storage tube, the support rod comprises an elastic metal sheet and a plastic sleeve, the plastic sleeve is connected to the proximal end, and the elastic metal sheet is embedded in the plastic sleeve. The application improves the elasticity and stability of the support rod through the elastic metal sheet, ensures the structural integrity of the Manli Yue contraceptive ring, makes the Manli Yue contraceptive ring better adapt to the shape in the uterus, and makes the Manli Yue contraceptive ring maintain the correct position, thereby avoiding displacement or falling off of the Manli Yue contraceptive ring.

[0062] The above only describes the preferred embodiments of the application and is not intended to limit the application. Any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A non-dislodgeable contraceptive ring comprising a T-shaped support and a storage tube connected to the T-shaped support, characterized in that, The T-shaped bracket comprises: a trunk having a proximal end and a distal end, wherein the distal end is connected to the storage tube; Two support rods, each support rod comprises an elastic metal sheet and a plastic sleeve, the plastic sleeve is connected to the proximal end, and the elastic metal sheet is embedded in the plastic sleeve.

2. The anti-expulsion NuvaRing of claim 1, wherein, The elastic metal sheet is connected to an extension portion, and the extension portion and the two elastic metal sheets form a T-shaped structure, and the extension portion is used to be connected to the proximal end.

3. The anti-expulsion NuvaRing of claim 1, wherein the at least one of the first and second rings is formed from a material selected from the group consisting of silicone, polyurethane, and combinations thereof. The elastic metal sheet includes the following structure: A shape memory alloy sheet is embedded in the plastic sleeve.

4. The anti-expulsion NuvaRing of claim 3, wherein the at least one of the plurality of protrusions is a protrusion having a height of about 0.5 mm to about 1.5 mm. The shape memory alloy sheet includes one of the following structures: Nickel-titanium memory alloy sheet, copper-nickel memory alloy sheet or copper-aluminum memory alloy sheet.

5. The anti-expulsion NuvaRing of claim 3, wherein the at least one of the plurality of protrusions is a protrusion having a height of about 0.5 mm to about 1.5 mm. The thickness of the shape memory alloy sheet is 1-2 mm.

6. The anti-expulsion NuvaRing of claim 1, wherein the polyolefin is a polyethylene. The elastic metal sheet includes one of the following structures: Elastic copper sheet, elastic stainless steel sheet, elastic aluminum sheet or elastic iron sheet.

7. The anti-expulsion NuvaRing of claim 1, wherein the polyolefin is a polyethylene. A supporting protrusion is provided at the tail of the plastic sleeve.

8. The anti-expulsion NuvaRing of claim 7, wherein the polyolefin is a polyethylene. The supporting protrusion includes a curved surface body, and the curved surface body is located at the rear end of the plastic sleeve close to the main trunk.

9. The anti-expulsion NuvaRing of claim 1, wherein the polyolefin is a polyethylene. It also includes a fastening assembly, which includes: a connecting line and a fixing knot, one end of the connecting line is connected to the intersection of the two support rods, and the other end of the connecting line is connected to the fixing knot.

10. The anti-expulsion NuvaRing of claim 9, wherein the polyolefin is a polyethylene. The connecting line includes a nylon line, one end of the nylon line is connected to the intersection of the two support rods, and the other end is connected to the fixing knot, and the nylon line and the fixing knot are integrally formed.

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