Intrauterine device placer
By designing a fixed component and a surface-contact insertion post for intrauterine contraceptive devices, the problems of IUD dislodgement during transportation and breakage during implantation have been solved, achieving higher safety and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN H&J MEDICAL DEVICES CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-19
AI Technical Summary
Existing IUDs are prone to dislodgement during transportation due to insecure sutures, and the degradable vertebrae are easily broken during implantation.
An intrauterine contraceptive device placement device was designed. A fixing component is used to fix the sleeve and the thread through a limiting rod and a button, which increases the reliability of the thread fixation. The design of the insertion post and the surface contact of the contraceptive device disperses stress and avoids breakage.
It effectively prevents the IUD from dislodging during transportation, is easy to use, and reduces the risk of degradation and fragmentation during implantation, thus improving the safety and reliability of the procedure.
Smart Images

Figure CN224251609U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical devices, and in particular to an intrauterine device (IUD) placement device. Background Technology
[0002] An intrauterine device (IUD) is a contraceptive device placed inside the uterine cavity. Early IUDs were mostly ring-shaped and commonly called IUD rings. There are many types of IUD inserters, with commonly used ones in China including single metal rings, spiral rings, mixed rings, T-shaped rings, etc. IUDs have minimal systemic interference, acting locally. They do not affect fertility after removal and have advantages such as safety, effectiveness, reversibility, convenience, and economy, making them one of the most commonly used contraceptive methods. To facilitate IUD insertion, an IUD inserter is needed to ensure safe implantation into the uterus. Existing IUD inserters may have issues with secure suture fixation, leading to IUD dislodgement during transport. Furthermore, the grooved end of the IUD, where the inserter contacts the degradable cone, poses a risk of the degradable cone breaking due to concentrated stress during implantation. Utility Model Content
[0003] In view of this, the present invention aims to provide an intrauterine device placement device to solve the above-mentioned problems.
[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0005] An intrauterine device (IUD) inserter includes a handle, a push rod, a cannula, a fixing component, and the IUD. The push rod is connected to one end of the handle, and the other end of the handle has a notch for securing the thread. A cannula is fitted over the outside of the push rod. A fixing component for securing the cannula is provided on the handle. The fixing component includes a button and a limiting rod horizontally connected to the side wall of the button. The handle has an internal cavity with a lower fixing ring and an upper fixing ring corresponding to the bottom and top of the cavity. The button passes through the lower and upper fixing rings sequentially from bottom to top. The upper surface of the handle has insertion holes for the button and the limiting rod to pass through. Several sliders are provided on the side wall near the lower end of the button. The lower fixing ring... The side wall has sliding slots corresponding to the sliders, which move up and down within the slots. The button also has a threading hole for the thread to pass through. A spring is also provided between the lower end of the button and the bottom of the cavity. When the spring is pressed, the threading hole is located below the upper fixing ring. When the spring is naturally extended and retracted, the fixing ring blocks the threading hole. The push rod and the handle are connected at one end with a second groove for accommodating the limiting rod. The limiting rod has a plug, and the sleeve has two limiting holes for cooperating with the plug. The other end of the push rod has a third groove for accommodating the IUD, and the other end of the push rod also has a post for inserting the degradation cone of the IUD. The IUD is connected to the thread.
[0006] Furthermore, the push rod includes an upper connecting rod and a lower connecting rod. The upper connecting rod is connected to the handle. The area of the longitudinal section of the upper connecting rod is larger than the area of the longitudinal section of the lower connecting rod. A second groove is provided on the upper connecting rod, and a third groove and a pin are provided on the lower connecting rod.
[0007] Furthermore, limiting strips are provided on both sides of the upper connecting rod along its length extension direction, and a sliding groove is provided on the inner wall of the sleeve to cooperate with the limiting strips.
[0008] Furthermore, a fifth groove is provided on the side wall of the button at the wire hole.
[0009] Furthermore, the upper and lower surfaces of the handle are both provided with a first groove.
[0010] Furthermore, the upper surface of the handle is provided with a groove for concealing the thread, which is directly opposite the thread hole on the button.
[0011] Furthermore, a slit is provided in the center of the plug for the wire to pass through.
[0012] Furthermore, the sleeve is equipped with graduations.
[0013] Furthermore, the lower end of the button is recessed inward to form a fourth groove for accommodating the spring.
[0014] Compared with existing technologies, the intrauterine contraceptive device placement device described in this utility model has the following advantages:
[0015] The intrauterine device (IUD) placement device of this utility model uses a fixing component to simultaneously secure the cannula and the thread. The plug on the limiting rod engages with a corresponding limiting hole on the cannula, thus fixing the cannula in place. There are two limiting holes, one for the cannula when not in use and the other for releasing the IUD when the cannula is pulled. The limiting holes control the pulling position of the cannula. The button has a thread-passing hole for the thread. The button is limited by a lower fixing ring. When the spring is naturally extended or retracted, the fixing ring blocks the thread-passing hole, and the thread is clamped between the upper fixing ring and the button, thus securing the thread. When the spring is pressed, the thread-passing hole is located below the upper fixing ring, offset from the lower fixing ring, and the thread is no longer secured, allowing for IUD placement. Therefore, the fixing component effectively secures the thread, preventing it from being loosely fixed and causing the IUD to dislodge during transportation, and is convenient to use. The biodegradable cone of the IUD is inserted into the solid insertion post, and the contact between the bottom of the biodegradable cone and the core is a surface contact, which increases the contact area, reduces stress during the implantation process, and disperses stress, thus solving the problem of the biodegradable cone breaking due to concentrated stress during product implantation. Attached Figure Description
[0016] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0017] Figure 1 This is a schematic diagram of the intrauterine contraceptive device placement device according to an embodiment of the present utility model;
[0018] Figure 2 This is a cross-sectional view of the intrauterine contraceptive device placement device described in an embodiment of this utility model;
[0019] Figure 3 This is a partial enlarged view of point A of the intrauterine contraceptive device placement device described in this embodiment of the present invention;
[0020] Figure 4 This is a partial enlarged view of part B of the intrauterine contraceptive device placement device described in this embodiment of the utility model;
[0021] Figure 5 This is an exploded view of the intrauterine device placement device described in an embodiment of the present invention;
[0022] Figure 6 This is an internal view of the intrauterine contraceptive device placement device described in an embodiment of this utility model;
[0023] Figure 7 This is a schematic diagram of the structure of the fixing component described in an embodiment of the present utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Handle; 11. First groove; 12. Wire groove; 13. Notch; 14. Lower fixing ring; 141. Sliding seam; 15. Upper fixing ring; 16. Spring; 17. Cavity; 18. Insertion hole; 2. Push rod; 21. Upper connecting rod; 211. Second groove; 212. Limiting strip; 22. Lower connecting rod; 221. Third groove; 222. Insertion post; 3. Sleeve; 31. Limiting hole; 32. Scale; 4. Fixing component; 41. Button; 411. Fourth groove; 412. Slider; 413. Wire hole; 414. Fifth groove; 42. Limiting rod; 43. Plug; 5. IUD; 6. Thread. Detailed Implementation
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0030] like Figure 1-7As shown, an intrauterine device (IUD) 5 placement device includes a handle 1, a push rod 2, a sleeve 3, a fixing component 4, and an IUD 5. The push rod 2 is connected to one end of the handle 1, and the other end of the handle 1 has a notch 13 for holding the thread 6. The sleeve 3 is sleeved on the outside of the push rod 2. The handle 1 has a fixing component 4 for fixing the sleeve 3. The fixing component 4 includes a button 41 and a limiting rod 42 horizontally connected to the side wall of the button 41. The handle 1 has a cavity 17 inside. The bottom and top of the cavity 17 are respectively provided with a lower fixing ring 14 and an upper fixing ring 15. The button 41 passes through the lower fixing ring 14 and the upper fixing ring 15 from bottom to top. The upper surface of the handle 1 has an insertion hole 18 for the button 41 and the limiting rod 42 to pass through. Several sliders 412 are provided on the side wall near the lower end of the button 41. The side wall of the lower fixing ring 14 is provided with... There are sliding slots 141 corresponding to sliders 412. Slider 412 moves up and down in sliding slots 141. Button 41 is also provided with thread hole 413 for thread 6 to pass through. A spring 16 is also provided between the lower end of button 41 and the bottom of cavity 17. When spring 16 is pressed, thread hole 413 is located below upper fixing ring 15. When spring 16 is naturally extended and retracted, fixing ring is blocked at thread hole 413. Push rod 2 is provided with a second groove 211 for accommodating limiting rod 42 at one end connected to handle 1. Limiting rod 42 is provided with plug 43. Sleeve 3 is provided with two limiting holes 31 for cooperating with plug 43. Push rod 2 is provided with a third groove 221 for accommodating IUD 5 at the other end. The other end of push rod 2 is also provided with a post 222 for inserting the degradation cone of IUD 5. IUD 5 is connected to thread 6.
[0031] The plug on the limiting rod of the device engages with the corresponding limiting hole on the sleeve, thus securing the sleeve. There are two limiting holes, one for the sleeve when not in use and the other for releasing the IUD when the sleeve is pulled. The position of the sleeve can be controlled via these limiting holes. The button has a threading hole for the thread to pass through. The button is limited by a lower fixing ring. In the naturally extended state of the spring, the fixing ring blocks the threading hole, trapping the thread between the upper fixing ring and the button. When the spring is pressed, the threading hole is below the upper fixing ring, offset from the lower fixing ring, and the thread is no longer secured, allowing for IUD placement. Therefore, the fixing assembly secures the thread, preventing it from becoming loose and dislodging during transport, and is convenient to use. The biodegradable cone of the IUD is inserted into the solid insertion post, with surface contact between the cone and its base. This increases the contact area, reduces stress during implantation, and disperses stress, solving the problem of the biodegradable cone breaking due to concentrated stress during implantation.
[0032] For example, the push rod 2 includes an upper connecting rod 21 and a lower connecting rod 22. The upper connecting rod 21 is connected to the handle 1. The area of the longitudinal section of the upper connecting rod 21 is larger than the area of the longitudinal section of the lower connecting rod 22, that is, the upper connecting rod is thicker than the lower connecting rod. The second groove 211 is provided on the upper connecting rod, and the third groove 221 and the insert 222 are provided on the lower connecting rod.
[0033] For example, the upper connecting rod is provided with limiting strips 212 on both sides along its length, and the inner wall of the sleeve 3 is provided with a sliding groove that cooperates with the limiting strips 212. The limiting strips move along the sliding grooves, making the control of the product more precise and stable during use.
[0034] For example, such as Figure 7 As shown, a fifth groove 414 is provided on the side wall of the button 41 at the thread hole 413. The fifth groove is convenient for accommodating the wire and avoids the gap between the upper fixing ring and the button being too small, which would cause excessive pressure on the wire and damage the wire.
[0035] Specifically, a fifth groove is provided, and the fifth groove is located on the inlet side of the wire hole.
[0036] For example, both the upper and lower surfaces of the handle 1 are provided with a first groove 11. The first groove facilitates holding the handle.
[0037] For example, the upper surface of the handle 1 is provided with a groove 12 for hiding the thread 6, and the groove 12 is directly opposite the thread hole 413 on the button 41.
[0038] Specifically, the push rod is also equipped with a groove for concealing the thread.
[0039] For example, the plug 43 has a slit in the center for the thread 6 to pass through.
[0040] For example, the sleeve 3 is provided with a scale 32.
[0041] For example, the lower end of button 41 is recessed inward to form a fourth groove 411 for receiving spring 16.
[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An intrauterine device (IUD) placement device, characterized in that: The device includes a handle, a push rod, a sleeve, a fixing assembly, and an IUD. The push rod is connected to one end of the handle, and the other end of the handle has a notch for securing the thread. A sleeve is fitted over the outside of the push rod. The handle has a fixing assembly for securing the sleeve, which includes a button and a limiting rod horizontally connected to the side wall of the button. The handle has an internal cavity with a lower fixing ring and an upper fixing ring at the bottom and top of the cavity, respectively. The button passes through the lower and upper fixing rings sequentially from bottom to top. The upper surface of the handle has a hole for the button and the limiting rod to pass through. Several sliders are located on the side wall near the lower end of the button. The side wall of the lower fixing ring has a corresponding... The sliders correspond to the sliding slots one by one, and the sliders move up and down within the sliding slots. The buttons also have thread holes for the thread to pass through. A spring is also provided between the lower end of the button and the bottom of the cavity. When the spring is pressed, the thread hole is located below the upper fixing ring. In the state of natural extension and contraction of the spring, the fixing ring is blocked at the thread hole. The push rod and the handle are connected at one end, which has a second groove to accommodate the limiting rod. The limiting rod has a plug, and the sleeve has two limiting holes for use with the plug. The other end of the push rod has a third groove to accommodate the IUD, and the other end of the push rod also has a post for inserting the degradation cone of the IUD. The IUD is connected to the thread.
2. The intrauterine device placement device according to claim 1, characterized in that: The push rod includes an upper connecting rod and a lower connecting rod. The upper connecting rod is connected to the handle. The area of the longitudinal section of the upper connecting rod is larger than that of the longitudinal section of the lower connecting rod. A second groove is provided on the upper connecting rod, and a third groove and a pin are provided on the lower connecting rod.
3. The intrauterine device placement device according to claim 2, characterized in that: Limiting strips are provided on both sides of the upper connecting rod along its length extension direction, and sliding grooves that cooperate with the limiting strips are provided on the inner side wall of the sleeve.
4. The intrauterine device placement device according to claim 1, characterized in that: A fifth groove is provided on the side wall of the button at the wire hole.
5. The intrauterine device placement device according to claim 1, characterized in that: The upper and lower surfaces of the handle are both provided with a first groove.
6. The intrauterine device placement device according to claim 1, characterized in that: The upper surface of the handle has a groove for concealing the thread, which is directly opposite the thread hole on the button.
7. The intrauterine device placement device according to claim 1, characterized in that: The plug has a slit in the center for the wire to pass through.
8. The intrauterine device placement device according to claim 1, characterized in that: The sleeve has graduations.
9. The intrauterine device placement device according to claim 1, characterized in that: The lower end of the button is recessed inward to form a fourth groove for accommodating the spring.