Fixing device for preventing Mangyule ring from falling off

By designing a fixing device that includes an operating handle, an operating component, and a retaining ring component, and using a auger to insert into the uterine muscle layer to fix the Mirena IUD, the problem of stable positioning of the Mirena IUD under different uterine shapes and conditions is solved, ensuring contraceptive effectiveness.

CN223979892UActive Publication Date: 2026-03-10LIANYUNGANG MATERNAL & CHILD HEALTH HOSPITAL (LIANYUNGANG THIRD PEOPLES HOSPITAL)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

The Mirena IUD is prone to displacement or expulsion in women with heavy menstrual bleeding, rigid endometrium, or large uterine cavity, thus losing its contraceptive effect.

Method used

A fixing device including an operating handle, an operating component, a positioning component, and a retaining ring component was designed. The Mirena IUD is fixed by inserting a spiral drill into the myometrium to ensure its stable position.

Benefits of technology

It achieves stable positioning of the Mirena IUD under different uterine shapes and conditions, avoiding the dependence on uterine shape and environment of traditional methods, and reducing the impact of uterine contractions and changes in menstrual flow.

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Abstract

The utility model provides a fixing device for preventing a Munyule ring from falling off, and relates to the technical field of medical instruments. The fixing device comprises an operating handle, an operating assembly is slidably connected to the interior of the operating handle, a positioning assembly is fixedly connected to the top end of the operating assembly, and a clamping ring assembly is rotatably connected to the outer side of the positioning assembly. An adjusting column is fixedly connected into the inner column, a protruding block is fixedly connected into the adjusting column, an extending column is slidably connected to the outer side of the protruding block, a clamping block is fixedly connected to the top end of the extending column, and a connecting block is slidably connected to the top end of the clamping block. According to the design, the Munyule ring can be inserted and fixed in the muscular layer of the bottom of the uterus through the spiral drill, so that the Munyule ring can adapt to women with different uterus forms and conditions, including women with large uterine cavities, hard endometrium or large menstrual bleeding amount, the dependence of a traditional mode on the uterus forms and the environment is avoided, and the production efficiency is improved. The influence of uterine contraction or menstrual blood volume change is not easily caused, and the ring body is always kept at a stable position.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a fixation device for preventing the Mirena IUD from falling off. Background Technology

[0002] The Mirena IUD, also known as the Levonorgestrel-releasing intrauterine device, is a special type of intrauterine contraceptive that achieves contraception by continuously releasing small doses of progestin into the uterine cavity. This method of contraception is a local medicated method. Unlike traditional metal IUDs, the Mirena IUD does not contain copper; instead, it works by altering the uterine lining environment through medication, thereby preventing implantation of a fertilized egg.

[0003] Traditional Mirena IUDs rely primarily on their shape and weight to remain inside the uterus. However, this method is insufficient for all situations, especially in women with heavy menstrual bleeding, rigid endometrium, or large uterine cavity. In these cases, the Mirena IUD is more susceptible to displacement or expulsion due to uterine contractions and other factors, thus losing its contraceptive effect.

[0004] Therefore, this utility model provides a fixing device to prevent the Mirena ring from falling off. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a fixing device to prevent the Mirena IUD from falling off.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fixing device for preventing the Mirena IUD from falling off, comprising an operating handle, an operating component slidably connected inside the operating handle, a positioning component fixedly connected to the top of the operating component, and a retaining ring component rotatably connected to the outside of the positioning component.

[0007] The positioning component includes an inner column, an adjusting column fixedly connected inside the inner column, a protrusion fixedly connected inside the adjusting column, an extension column slidably connected to the outer side of the protrusion, a locking block fixedly connected to the top of the extension column, a connecting block slidably connected to the top of the locking block, and a spiral drill fixedly connected to the top of the connecting block.

[0008] In a preferred embodiment, the operating component includes an inner rod, the outer side of which is slidably connected to the operating handle, an outer rod is fixedly connected to the top of the operating handle, and a sliding groove is provided inside the operating handle, on which a slider is slidably connected.

[0009] The technical effect of adopting the above technical solution is that it enables the device to be positioned more accurately during installation, while reducing damage to uterine tissue.

[0010] In a preferred embodiment, the retaining ring assembly includes a Mireille ring body, the inside of which is rotatably connected to a connecting block, a scale is fixedly connected to the outer side of the outer rod, and a limit ring is fixedly connected to the outer side of the outer rod.

[0011] The technical effect of adopting the above technical solution is: to control the position of the Mirena ring, while the limiting ring prevents the operating components from sliding excessively.

[0012] In a preferred embodiment, the outer side of the inner rod is slidably connected to the inside of the outer rod.

[0013] The technical effect of adopting the above technical solution is that it makes it easier for the operator to adjust the position of the operating handle as needed, thereby achieving precise control of the Mirena ring.

[0014] In a preferred embodiment, the outer side of the Mireille ring is slidably connected to the inside of the outer rod.

[0015] The technical effect of adopting the above technical solution is to ensure that the ring will not accidentally slip off during placement or removal.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] This invention utilizes a sliding block to move the inner rod along the outer rod, while an adjusting column causes a protrusion to slide within a groove, allowing the extension column to move upwards. The interaction between the locking block and the connecting block rotates the auger and inserts it into the uterine muscle layer. The Mirena IUD moves synchronously with the auger and is positioned within the uterine cavity. This design allows the Mirena IUD to be inserted and fixed in the uterine muscle layer at the bottom of the uterus via the auger, thus adapting to women with different uterine shapes and conditions, including those with larger uterine cavities, harder endometrium, or heavier menstrual bleeding. It avoids the dependence on uterine shape and environment inherent in traditional methods, and is less affected by uterine contractions or changes in menstrual flow, ensuring the IUD maintains a stable position. Attached Figure Description

[0018] Figure 1 A perspective view of a fixing device for preventing the Mirena ring from falling off, provided by this utility model;

[0019] Figure 2 A schematic diagram of the operating components of a fixing device for preventing the Mirena ring from falling off, provided by this utility model;

[0020] Figure 3 A schematic diagram of the positioning component structure of a fixing device for preventing the Mirena ring from falling off, provided by this utility model;

[0021] Figure 4This is a structural disassembly diagram of the positioning component of a fixing device for preventing the Mirena ring from falling off, provided by this utility model.

[0022] Legend:

[0023] 1. Operation handle;

[0024] 2. Operating components; 21. Inner rod; 22. Outer rod; 23. Slide groove; 24. Slider;

[0025] 3. Positioning component; 31. Inner column; 32. Adjusting column; 33. Protrusion; 34. Extension column; 35. Locking block; 36. Connecting block; 37. Spiral drill;

[0026] 4. Snap ring assembly; 41. Mirena ring body; 42. Scale; 43. Limiting ring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1 As shown, this embodiment provides a technical solution: a fixing device to prevent the Mirena IUD from falling off, including an operating handle 1;

[0029] The operating handle 1 is slidably connected to the operating component 2. The operating component 2 includes an inner rod 21, the outer side of which is slidably connected to the operating handle 1. The top of the operating handle 1 is fixedly connected to an outer rod 22, the outer side of which is slidably connected to the inside of the outer rod 22. The operating handle 1 has a sliding groove 23 inside, and a slider 24 is slidably connected to the sliding groove 23.

[0030] The operation panel 1 not only provides the user interface, but also serves to support and connect other components.

[0031] The outer rod 22 is fixed to the top of the operating handle 1, providing a sliding track for the inner rod 21. The slide groove 23 is opened inside the operating handle 1 to accommodate and guide the movement of the slider 24. The slider 24 is slidably connected to the slide groove 23 to realize the position adjustment of the positioning component 3. By moving the slider 24, the positioning component 3 can be moved together, thereby changing the working state of the device.

[0032] Furthermore, such as Figure 1 - Figure 4As shown: The top of the operating component 2 is fixedly connected to the positioning component 3. The positioning component 3 includes an inner column 31. The outer side of the inner column 31 is slidably connected to the inside of the outer rod 22. An adjusting column 32 is fixedly connected inside the inner column 31. A protrusion 33 is fixedly connected inside the adjusting column 32. An extension column 34 is slidably connected to the outer side of the protrusion 33. A locking block 35 is fixedly connected to the top of the extension column 34. A connecting block 36 is slidably connected to the top of the locking block 35. A spiral drill 37 is fixedly connected to the top of the connecting block 36.

[0033] The inner column 31 can move stably inside the outer rod 22 while maintaining a tight fit with the outer rod 22. The existence of the adjusting column 32 is used to further adjust the position of the inner column 31. By adjusting the adjusting column 32, the position of the entire positioning assembly 3 can be adjusted. The protrusion 33 is fixed inside the adjusting column 32. The protrusion 33 is designed to provide additional support or positioning function. By interacting with the extension column 34 or other components, it ensures the stability of the entire positioning assembly 3 during power transmission. The design of the extension column 34 can change its relative position with the protrusion 33. When the adjusting column 32 drives the protrusion 33 to move to the bottom, it can drive the locking block 35 to move to the top. The design of the locking block 35 is to transmit rotational force through cooperation with the connecting block 36 and avoid misalignment that would prevent power transmission. The spiral drill 37 is used to insert into the myometrium at the bottom of the uterus to achieve positioning.

[0034] Furthermore, such as Figure 1 and Figure 2 As shown: The outer side of the positioning component 3 is rotatably connected to the retaining ring component 4. The retaining ring component 4 includes a Mireille ring body 41. The outer side of the Mireille ring body 41 is slidably connected to the inside of the outer rod 22. The inside of the Mireille ring body 41 is rotatably connected to the connecting block 36. The outer side of the outer rod 22 is fixedly connected to the scale 42. The outer side of the outer rod 22 is fixedly connected to the limit ring 43.

[0035] The Mirena IUD 41 releases a small amount of progesterone daily, creating an environment in the cervix, uterine cavity, and ovarian endometrium that is unsuitable for conception, thus achieving a highly reliable contraceptive effect. The scale 42 provides the operator with an intuitive reference. By reading the values ​​on the scale 42, the operator can ensure that the Mirena IUD 41 is accurately placed in the required position, thereby improving the accuracy and effectiveness of the treatment. The limiting ring 43 restricts the working range of the entire device, ensuring that the Mirena IUD 41 does not move excessively or deviate from the predetermined position during adjustment.

[0036] Working principle:

[0037] like Figure 1 - Figure 4 As shown:

[0038] In use: First, slide the slider 24 onto the groove 23. At this time, the inner rod 21 on the slider 24, pulled by the slider 24, drives the inner column 31 to slide onto the outer rod 22 and slide towards the bottom. At this time, the adjusting column 32 will drive the protrusion 33 to slide onto the groove of the extension column 34. Under the action of the groove of the extension column 34, the extension column 34 can be moved to the top. Due to the engagement of the locking block 35 and the connecting block 36, the spiral drill 37 at the top will rotate when it moves upward, so that the spiral drill 37 can be inserted into the myometrium at the bottom of the uterus. At this time, the Mirena IUD 41 will also move synchronously and be locked in the uterus. In this way, the Mirena IUD 41 can be positioned in the uterus to prevent it from falling out.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A device for preventing the expulsion of an IUD, comprising an operating handle (1), characterized in that, The operation connects the inside of (1) with operation assembly (2), the top of operation assembly (2) is fixedly connected with positioning assembly (3), the outside of positioning assembly (3) is rotatably connected with snap ring assembly (4); The positioning assembly (3) includes inner column (31), the inside of inner column (31) is fixedly connected with adjusting column (32), the inside of adjusting column (32) is fixedly connected with protruding block (33), the outside of protruding block (33) is slidably connected with extension column (34), the top of extension column (34) is fixedly connected with clamping block (35), the top of clamping block (35) is slidably connected with connecting block (36), the top of connecting block (36) is fixedly connected with auger (37).

2. The device of claim 1, wherein: The operation assembly (2) includes inner rod (21), the outside of inner rod (21) is slidably connected on operation handle (1), the top of operation handle (1) is fixedly connected with outer rod (22), the inside of operation handle (1) is provided with sliding slot (23), the sliding slot (23) is slidably connected with sliding block (24).

3. The device of claim 2, wherein the device is configured to prevent the levonorgestrel-releasing intrauterine system from falling out. The snap ring assembly (4) includes man month joy ring body (41), the inside of man month joy ring body (41) is rotatably connected on connecting block (36), the outside of outer rod (22) is fixedly connected with scale ruler (42), the outside of outer rod (22) is fixedly connected with limit ring (43).

4. The device of claim 2, wherein the device is configured to prevent the levonorgestrel-releasing intrauterine system from falling out. The outside of inner rod (21) is slidably connected in the inside of outer rod (22).

5. The device of claim 2, wherein the device is configured to prevent the levonorgestrel-releasing intrauterine system from falling out. The outside of inner column (31) is slidably connected in the inside of outer rod (22).

6. The device of claim 3, wherein the device is configured to prevent the levonorgestrel-releasing intrauterine system from falling out. The outside of man month joy ring body (41) is slidably connected in the inside of outer rod (22).