Anti-falling contraceptive ring

Abstract

The invention relates to the technical field of contraceptive rings, and discloses an anti-falling contraceptive ring which comprises a tough strip, a hollow metal mechanism and a stay wire type limiting mechanism. The first hollow column and the second hollow column are installed in the copper hollow metal rod, and the second pull wire is located in the second hollow column and can make the middle of the tough strip bend downwards. The first stay wire can generate downward pulling force on the second stay wire and can be separated from the second stay wire; and the third stay wire can generate downward pulling force on the first stay wire. According to the anti-falling contraceptive ring, when the contraceptive work is achieved, the elastic strips forming a closed loop are utilized, the elastic strips in the closed loop state can form acting force in two directions, the anti-falling capacity of the device can be improved, in addition, when the device is taken out, the structural appearance of the elastic strips can be changed, the elastic strips located on the two sides can be folded towards the center, and therefore the contraceptive ring is convenient to use. Therefore, the damage of the tough strip to the uterus side wall is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of intrauterine devices, and specifically to an intrauterine device that prevents shedding. Background Art

[0002] Among contraceptive methods, an intrauterine device is placed in the uterine cavity for physical contraception. Most of the currently used intrauterine devices are of an integral structure, which may change their positions due to the rejection phenomenon of the uterus, affecting the contraceptive effect. Therefore, it is very important to design an intrauterine device that prevents shedding.

[0003] For example, Chinese Patent with the publication number "CN221731177U" discloses "an intrauterine device that prevents shedding". Its main structure includes a metal rod. A silica gel sleeve is arranged at the outer end of the metal rod, and a connector is connected to the lower end of the metal rod. A pull ring is arranged at the lower end of the connector. A connection assembly is installed at the upper end of the metal rod, and the connection assembly includes a connection seat, a connecting rod, and a connection ring; a top rod is arranged at the upper end of the connection assembly, and a connection block is installed at the outer end of the top rod. A resilient tube is arranged at the outer end of the connection block, and a connection head is installed at the outer end of the resilient tube; a support rod is arranged at the lower end of the connection head, and a fixing block is connected to the outer end of the connection head. A blocking plate is arranged at the outer end of the fixing block. This intrauterine device that prevents shedding is convenient for preventing the intrauterine device from adhering to the uterine inner wall and being inconvenient for subsequent removal, and at the same time is convenient for realizing the function of preventing the intrauterine device from shedding. At the same time, it is convenient for quickly assembling the intrauterine device.

[0004] However, the above-mentioned intrauterine device that prevents shedding uses a resilient tube, a connection head, a support rod, a fixing block, and a blocking plate. It only uses a single resilient tube to prevent the device from shedding, resulting in relatively poor control ability for preventing shedding. At the same time, in order to achieve the purpose of preventing shedding, the plastic deformation strength of the resilient tube will be relatively large. When removing the device, the strength of the resilient tube is proportional to the discomfort felt by women. Therefore, it causes relatively great harm to women when removed. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an intrauterine device that prevents shedding. When performing the contraceptive function, a closed-loop resilient strip is utilized. The closed-loop resilient strip can form acting forces in two directions, which can improve the anti-shedding ability of the device. In addition, when the device is removed, the structural shape of the resilient strip can be changed, and the resilient strips on both sides can converge towards the center, thereby reducing the harm of the resilient strip to the uterine side wall, and solving the above-mentioned technical problems.

[0006] To achieve the above object, the present invention provides the following technical solution: a contraceptive ring that prevents shedding, including a resilient strip, and further including a hollow metal mechanism, which internally has a copper hollow metal rod with a hollow structure and two symmetrically arranged branch convex column structures at the periphery of the top end of the copper hollow metal rod and capable of fixing both ends of the resilient strip; and a wire-pulling type limiting mechanism, which internally has a first hollow column and a second hollow column installed inside the copper hollow metal rod, a second wire located in the second hollow column and capable of causing the middle part of the resilient strip to bend downward, a first wire capable of exerting a downward pulling force on the second wire and capable of detaching from the second wire, and a third wire capable of exerting a downward pulling force on the first wire.

[0007] Preferably, the resilient strip has the ability of elastic deformation.

[0008] Preferably, the hollow metal mechanism includes a copper hollow metal rod, the bottom of the copper hollow metal rod is provided with a conical head structure, the periphery of the top of the copper hollow metal rod is provided with two symmetric branch convex column structures, the end face of the branch convex column structure is provided with a concave structure and a first component installation groove for fixing the end structure of the resilient strip, the inside of the copper hollow metal rod is provided with a first component activity cavity at the lower part and a second component activity cavity at the upper part, the first component activity cavity and the second component activity cavity are communicated through a first wire body perforation, the inside of the copper hollow metal rod is provided with a second wire body perforation communicating the upper space above it and the top end of the second component activity cavity, and a sealing ring installation cavity is provided at the top end of the second wire body perforation, the inside of the copper hollow metal rod is provided with a third wire body perforation communicating the lower space below it and the bottom end of the first component activity cavity, and a sealing ring installation cavity is provided at the bottom end of the third wire body perforation.

[0009] Preferably, the copper hollow metal rod is a rod body structure made of copper material capable of releasing a contraceptive medium.

[0010] Preferably, the cable - type limit mechanism includes a first hollow column fixedly installed inside the movable cavity of the first component and a second hollow column fixedly installed inside the movable cavity of the second component. Inside the first hollow column and the second hollow column, there are respectively a movable cavity of the third component and a movable cavity of the fourth component. Inside the first hollow column located in the movable cavity of the third component, there is a first inner movable plug that can move axially along the movable cavity of the third component. Inside the second hollow column located in the movable cavity of the fourth component, there is a second inner movable plug that can move axially along the movable cavity of the fourth component. On the upper end face of the second inner movable plug, a second cable is fixedly installed, which penetrates through the second hollow column and the perforation of the second wire body. And on the outer periphery of the cable at the position of the sealing ring installation cavity, there is a sealing ring located inside the sealing ring installation cavity. The top end of the second cable is fixedly installed with a fixing sleeve sleeved on the middle area of the resilient strip. The bottom end of the second inner movable plug is fixedly installed with a fixing sleeve. Inside the fixing sleeve, a first cable is embedded, which penetrates through the second hollow column, the perforation of the first wire body, and the top structure of the first hollow column. The bottom end of the first cable is fixedly installed inside the top end of the first inner movable plug. The bottom end of the first inner movable plug is fixedly installed with a third cable that penetrates through the bottom structure of the first hollow column and the perforation of the third wire body. And on the outer periphery of the cable at the position of the sealing ring installation cavity, there is a sealing ring located inside the sealing ring installation cavity.

[0011] Preferably, the embedding between the first cable and the fixing sleeve is a detachable embedding method, and the pulling force required for their detachment is not less than the pulling force generated by the resilient strip on the second cable after the resilient strip is bent.

[0012] Preferably, it further includes a combined picking - and - placing mechanism, and inside it, there is a picking - and - placing tube for picking and placing the copper hollow metal rod.

[0013] Preferably, the combined picking - and - placing mechanism includes a picking - and - placing tube made of plastic. In the center of the picking - and - placing tube, there is a four - wire body perforation with both ends open for placing the third cable. The top end of the picking - and - placing tube is provided with a tapered card slot with an in - concave structure.

[0014] Preferably, the structural shape and size of the tapered card slot respectively match the structural shape and size of the tapered head structure.

[0015] Compared with the prior art, the present invention provides a contraceptive ring with anti - detachment, having the following beneficial effects:

[0016] When functioning as a contraceptive, a resilient strip forming a closed loop is utilized. The resilient strip in the closed-loop state can generate acting forces in two directions, enhancing the anti-detachment ability of the device. Additionally, when the device is removed, the structural shape of the resilient strip can be changed, and the resilient strips on both sides can converge towards the center, thereby reducing the harm to the uterine sidewall caused by the resilient strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of the present invention;

[0018] Figure 2 is a perspective sectional view of the present invention;

[0019] Figure 3 is a perspective view of the hollow metal mechanism in the present invention;

[0020] Figure 4 is a perspective view of the wire-pulling type limiting mechanism in the present invention;

[0021] Figure 5 is a perspective view of the combined picking and placing mechanism in the present invention.

[0022] Wherein: 1. Hollow metal mechanism; 11. Copper hollow metal rod; 12. Conical head structure; 13. Branch convex column structure; 14. First component installation groove; 15. First component moving cavity; 16. Second component moving cavity; 17. First wire body perforation; 18. Second wire body perforation; 19. Third wire body perforation; 110. Sealing ring installation cavity; 2. Wire-pulling type limiting mechanism; 21. First hollow column; 22. Second hollow column; 23. Third component moving cavity; 24. Fourth component moving cavity; 25. First inner moving plug; 26. Second inner moving plug; 27. First wire; 28. Second wire; 29. Third wire; 210. Sealing ring; 211. Fixed sleeve; 212. Pre-tightening snap ring; 3. Combined picking and placing mechanism; 31. Picking and placing tube; 32. Conical card slot; 33. Fourth wire body perforation; 4. Resilient strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 1 and Figure 2, A contraceptive ring that prevents shedding, including a resilient strip 4. In order to generate plastic reset ability, it is necessary to make the resilient strip 4 have elastic deformation ability. When the resilient strip 4 is in an O-shaped closed-loop form, the edge part of the resilient strip 4 will contact the uterine inner wall, and the resilient strip 4 in two directions can withstand greater anti-deformation ability, thus having stronger stability.

[0025] To achieve the limiting ability and contraceptive ability of the components, please refer to Figure 1 、 Figure 2 and Figure 3 , it is necessary to set up a hollow metal mechanism 1, which internally has a copper hollow metal rod 11 with a hollow structure and two branch convex column structures 13 symmetrically arranged around the top of the copper hollow metal rod 11 and capable of fixing the two ends of the resilient strip 4. Since the copper hollow metal rod 11 is a rod structure made of copper material that can release contraceptive medium, when the copper hollow metal rod 11 is in the uterine cavity, it can play a contraceptive effect.

[0026] Regarding the specific structure of the hollow metal mechanism 1, please refer to Figure 3 , including a copper hollow metal rod 11. The bottom of the copper hollow metal rod 11 is provided with a tapered head structure 12. The top periphery of the copper hollow metal rod 11 is provided with two symmetric branch convex column structures 13. The end face of the branch convex column structure 13 is provided with an inwards concave structure and a first component installation groove 14 for fixing the end structure of the resilient strip 4. The inside of the copper hollow metal rod 11 is provided with a first component activity cavity 15 located below and a second component activity cavity 16 located above. The first component activity cavity 15 and the second component activity cavity 16 are connected through a first wire perforation 17. The inside of the copper hollow metal rod 11 is provided with a second wire perforation 18 connecting its upper space and the top of the second component activity cavity 16, and a sealing ring installation cavity 110 is provided at the top of the second wire perforation 18. The inside of the copper hollow metal rod 11 is provided with a third wire perforation 19 connecting its lower space and the bottom of the first component activity cavity 15, and a sealing ring installation cavity 110 is provided at the bottom of the third wire perforation 19.

[0027] To achieve the ability to change the shape of the resilient strip 4, thus having an adaptive function, please refer to Figure 1 、 Figure 2 and Figure 4, it is necessary to set up a pull-wire type limiting mechanism 2, which is provided with a No. 1 hollow column 21 and a No. 2 hollow column 22 installed inside the copper hollow metal rod 11, a No. 2 pull wire 28 located in the No. 2 hollow column 22 and capable of causing the middle part of the toughness strip 4 to produce a downward bending effect, a No. 1 pull wire 27 capable of exerting a downward pulling force on the No. 2 pull wire 28 and capable of being separated from the No. 2 pull wire 28, and a No. 3 pull wire 29 capable of exerting a downward pulling force on the No. 1 pull wire 27. The copper hollow metal rod 11 is placed into the uterine cavity using a take-and-place tube 31, and then the No. 3 pull wire 29 is pulled downward. Under the action of the pulling force, the No. 2 pull wire 28 will cause the middle part of the toughness strip 4 to be bent downward. Pull, so that the two sides of the tough strip 4 bend and expand outward, the outer side of the tough strip 4 can be in contact with the inner wall of the uterus, and then take out the pick-up and release tube 31, cut part of the No. 3 pull wire 29, when the device needs to be removed, insert the pick-up and release tube 31 again, and make the conical head structure 12 located inside the conical slot 32, and then keep the copper hollow metal rod 11 in a stationary state, and then pull the No. 3 pull wire 29 downward with force until the No. 1 pull wire 27 is pulled out from the inside of the fixed sleeve 212. At this time, the tough strip 4 is elastically reset, and the structures on both sides move closer to the center. When the device is pulled out, the damage of the tough strip 4 to the side wall of the uterus is reduced.

[0028] For the specific structure of the pull-wire type limiting mechanism 2, please refer to Figure 4, the wire-pulling type limit mechanism 2 includes a first hollow column 21 fixedly installed inside the movable cavity 15 of the first component and a second hollow column 22 fixedly installed inside the movable cavity 16 of the second component. Inside the first hollow column 21 and the second hollow column 22, there are respectively arranged a movable cavity 23 of the third component and a movable cavity 24 of the fourth component. Inside the first hollow column 21 and located in the movable cavity 23 of the third component, there is placed a first inner movable plug 25 capable of moving axially along the movable cavity 23 of the third component. Inside the second hollow column 22 and located in the movable cavity 24 of the fourth component, there is placed a second inner movable plug 26 capable of moving axially along the movable cavity 24 of the fourth component. On the upper end face of the second inner movable plug 26, there is fixedly installed a second wire 28 that penetrates through the second hollow column 22 and the second wire perforation 18. And on the outer periphery of the wire of the second wire 28 at the position of the sealing ring installation cavity 110, there is installed a sealing ring 210 located inside the sealing ring installation cavity 110. The top end of the second wire 28 is fixedly installed with a fixing sleeve 211 sleeved on the middle area of the resilient strip 4. The bottom end of the second inner movable plug 26 is fixedly installed with a fixing sleeve 212. Inside the fixing sleeve 212, there is embedded a first wire 27 that penetrates through the second hollow column 22, the first wire perforation 17, and the top structure of the first hollow column 21. The bottom end of the first wire 27 is fixedly installed inside the top end of the first inner movable plug 25. The bottom end of the first inner movable plug 25 is fixedly installed with a third wire 29 that penetrates through the bottom structure of the first hollow column 21 and the third wire perforation 19. And on the outer periphery of the wire of the third wire 29 at the position of the sealing ring installation cavity 110, there is installed a sealing ring 210 located inside the sealing ring installation cavity 110.

[0029] For combined use with the copper hollow metal rod 11, please refer to Figure 1 、 Figure 2 and Figure 5 , it is necessary to set up a combined picking and placing mechanism 3, and inside it, there is a picking and placing tube 31 for picking and placing the copper hollow metal rod 11.

[0030] Regarding the specific structure of the combined picking and placing mechanism 3, please refer to Figure 5 , including a picking and placing tube 31 made of plastic. In the center of the picking and placing tube 31, there is a fourth wire perforation 33 with both ends open and used for placing the third wire 29. At the top end of the picking and placing tube 31, there is a tapered card slot 32 with an inward concave structure. The structural shape and size of the tapered card slot 32 respectively match the structural shape and size of the tapered head structure 12.

[0031] When in use, use the taking and releasing tube 31 to place the copper hollow metal rod 11 into the uterine cavity, and then pull the No. 3 pull wire 29 downward. Under the action of the pulling force, the No. 2 pull wire 28 will pull the middle part of the tough strip 4 downward, so that the two sides of the tough strip 4 are bent and expanded outward, and the outer side of the tough strip 4 can be in contact with the inner wall of the uterus. Then take out the taking and releasing tube 31, cut off part of the No. 3 pull wire 29, and when the device needs to be removed, insert the taking and releasing tube 31 again, and make the conical head structure 12 located inside the conical slot 32, and then keep the copper hollow metal rod 11 in a static state, and then pull the No. 3 pull wire 29 downward with force until the No. 1 pull wire 27 is pulled out from the inside of the fixed sleeve 212. At this time, the tough strip 4 is reset due to its own elasticity, and the structures on both sides move closer to the center, and then continue to pull the No. 3 pull wire 29 downward until the device is pulled out.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A contraceptive ring that prevents falling off, comprising a tough strip (4), characterized in that: Also includes, A hollow metal structure (1) is provided with a hollow copper hollow metal rod (11) and two branch protruding column structures (13) symmetrically arranged on the periphery of the top end of the copper hollow metal rod (11) and capable of fixing the two ends of the toughness strip (4); A pull-wire type limiting mechanism (2) is provided with a first hollow column (21) and a second hollow column (22) installed inside a copper hollow metal rod (11), a second pull wire (28) located in the second hollow column (22) and capable of causing the middle part of the toughness strip (4) to produce a downward bending effect, a first pull wire (27) capable of generating a downward pulling force on the second pull wire (28) and capable of being separated from the second pull wire (28), and a third pull wire (29) capable of generating a downward pulling force on the first pull wire (27).

2. The anti-falling contraceptive ring according to claim 1, characterized in that: The toughness strip (4) has elastic deformation capability.

3. The anti-falling contraceptive ring according to claim 2, characterized in that: The hollow metal structure (1) comprises a copper hollow metal rod (11), the bottom of the copper hollow metal rod (11) is provided with a conical head structure (12), the top periphery of the copper hollow metal rod (11) is provided with two symmetrical branch protruding column structures (13), the end surface of the branch protruding column structure (13) is provided with a concave structure and a component mounting groove (14) for fixing the end structure of the toughness strip (4), the interior of the copper hollow metal rod (11) is provided with a component active cavity (15) located at the bottom and a component active cavity (16) located at the top, the component No. 1 The movable cavity (15) and the movable cavity (16) of the second component are connected via a first wire body through hole (17); the copper hollow metal rod (11) is provided with a second wire body through hole (18) connecting the space above it and the top of the movable cavity (16) of the second component, and the top of the second wire body through hole (18) is provided with a sealing ring installation cavity (110); the copper hollow metal rod (11) is provided with a third wire body through hole (19) connecting the space below it and the bottom of the movable cavity (15) of the first component, and the bottom of the third wire body through hole (19) is provided with a sealing ring installation cavity (110).

4. The anti-falling contraceptive ring according to claim 3, characterized in that: The copper hollow metal rod (11) is a rod structure made of copper material capable of releasing contraceptive media.

5. The anti-falling contraceptive ring according to claim 4, characterized in that: The pull-wire type limiting mechanism (2) comprises a first hollow column (21) fixedly installed inside the first component movable cavity (15) and a second hollow column (22) fixedly installed inside the second component movable cavity (16), wherein the first hollow column (21) and the second hollow column (22) are respectively provided with a third component movable cavity (23) and a fourth component movable cavity (24), wherein the first hollow column (21) is located in the third component movable cavity. A No. 1 inner movable plug (25) capable of axially moving along the movable cavity (23) of the No. 3 component is placed inside the movable cavity (23); a No. 2 inner movable plug (26) capable of axially moving along the movable cavity (24) of the No. 4 component is placed inside the No. 2 hollow column (22) located inside the movable cavity (24) of the No. 4 component; a No. 2 pull wire (28) penetrating the No. 2 hollow column (22) and the No. 2 wire body through hole (18) is fixedly installed on the upper end surface of the No. 2 inner movable plug (26); and the No. 2 pull wire (28) ) A sealing ring (210) located inside the sealing ring installation cavity (110) is installed on the outer periphery of the wire body located at the sealing ring installation cavity (110), a fixing sleeve (211) placed in the middle area of ​​the toughness strip (4) is fixedly installed on the top end of the No. 2 pull wire (28), and a fixing sleeve (212) is fixedly installed on the bottom end of the No. 2 inner movable plug (26), and the interior of the fixing sleeve (212) is embedded with a through hole (17) of the No. 2 wire body and the No. 1 hollow column (22). 1) A No. 1 pull wire (27) of the top structure, the bottom end of the No. 1 pull wire (27) is fixedly installed inside the top of the No. 1 internal movable plug (25), the bottom end of the No. 1 internal movable plug (25) is fixedly installed with a No. 3 pull wire (29) that passes through the bottom structure of the No. 1 hollow column (21) and the No. 3 wire body through hole (19), and the No. 3 pull wire (29) is installed with a sealing ring (210) located inside the sealing ring installation cavity (110) on the outer periphery of the wire body of the No. 3 pull wire (29) located at the sealing ring installation cavity (110).

6. The anti-falling contraceptive ring according to claim 5, characterized in that: The embedding between the No. 1 pull wire (27) and the fixing sleeve (212) is a disengageable embedding mode, and the pulling force required for the disengagement between the two is not less than the pulling force generated by the toughness strip (4) on the No. 2 pull wire (28) after the toughness strip (4) is bent.

7. An anti-falling contraceptive ring according to any one of claims 2 to 6, characterized in that: It also comprises a combined picking and placing mechanism (3), inside of which a picking and placing tube (31) for picking and placing the copper hollow metal rod (11) is arranged.

8. The anti-falling contraceptive ring according to claim 7, characterized in that: The combined pick-and-place mechanism (3) comprises a pick-and-place tube (31) made of plastic, wherein a fourth wire body through hole (33) with two ends in an open state and used for placing a third pull wire (29) is arranged at the center of the pick-and-place tube (31), and a conical card slot (32) with an inner concave structure is arranged at the top end of the pick-and-place tube (31).

9. The anti-falling contraceptive ring according to claim 8, characterized in that: The structural shape and size of the conical slot (32) respectively match the structural shape and size of the conical head structure (12).

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