Uterine cavity contraceptive device

By designing a uterine -saving device that includes the expansion segment and the altoslation structure of the drug, the problem of uncomfortable and lack of drug mitigation structures in the process of the existing uterine -shaped hedging device is solved, and effective contraception and treatment are realized. The effect of excessive menstrual flow and reducing the risk of falling off.

CN222399075UActive Publication Date: 2025-01-28HUAIROU DISTRICT MATERNAL & CHILD HEALTH HOSPITAL BEIJING
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Patent Information

Application Number
CN202420977504.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-08
Publication Date
2025-01-28
Estimated Expiration
2034-05-08

AI Technical Summary

Technical Problem

Existing uterine morphology devices are likely to cause discomfort during the insertion process, and lack a drug-sustaining structure, which cannot effectively solve the side effects of increasing vaginal secretions, increasing menstrual volume, prolonging menstrual period, intermenstrual bleeding, and lumbar and abdominal distension and pain.

Method used

Design a uterine -cavity -saving device that includes the body and the phylogenetic mitigation structure. The body of the birthplace is composed of a fixed section, U -shaped segment, and the expansion segment. The surface electroplating layer is placed on the surface to release copper ions to achieve contraceptive effects. The drug sustained -release structure has a built -in left apertophyllone, which is used to slowly release and treat too much menstrual flow. The expansion section is made of memory material, which can expand in the uterus, reduce the risk of falling off, and reduce the discomfort when placing the shell.

Benefits of technology

By releasing copper ions to achieve contraceptive effects, slow -release left reinopatonone is too much menstrual flow, reduce side effects, and reduce the risk of falling off through the design of the expansion section and improve the comfort of use.

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Abstract

The utility model relates to a uterine cavity contraceptive device which comprises a contraceptive device body and a medicine slow release structure, and the contraceptive device body comprises a fixed section, a U-shaped section and an expandable section. The fixed section is provided with a first end and a second end, the U-shaped section is also provided with a first end and a second end, the expandable section comprises a first expandable section and a second expandable section, the two ends of the first expandable section are connected with the first end of the fixed section and the first end of the U-shaped section respectively, and the two ends of the second expandable section are connected with the second end of the U-shaped section respectively. The two ends of the second expandable section are connected with the second end of the fixed section and the second end of the U-shaped section respectively, the first end of the medicine slow-release structure is fixedly connected to the fixed section, and the medicine slow-release structure is located in a space defined by the fixed section, the U-shaped section and the expandable sections; the surfaces of the U-shaped section and the fixed section are electroplated with copper layers, the contraceptive device body can release copper ions, fertilized ovum implantation is inhibited, the contraceptive effect is achieved, the shape of the expandable section can be changed, and the contraceptive device can be conveniently placed into the uterus.
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Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and specifically relates to an intrauterine contraceptive device. Background Art

[0002] Intrauterine contraceptive device is a safe, effective, simple, reversible contraceptive method that is easily accepted by women of childbearing age. At present, it accounts for more than 50% of the number of women of childbearing age in my country who use contraception. Since the intrauterine contraceptive device is made of stainless steel spring wire into a uterine cavity-shaped spiral body with three sides slightly concave and triangular arc-shaped convex according to the physiological and anatomical characteristics of the uterus, it is suitable for uterine contraction to offset the uterine contraction force and is not easy to shift downward and discharge. However, the side effects of intrauterine contraceptive devices at home and abroad such as increased vaginal secretions, increased menstrual volume, prolonged menstruation, intermenstrual bleeding and waist and abdominal distension within half a year after the device is inserted have not been solved. The current intrauterine contraceptive device has poor deformation ability, no shell to introduce into the uterine cavity, and relies entirely on the deformation ability of the spring spiral body when inserted, which can easily cause discomfort to people. The current intrauterine contraceptive device is not equipped with a drug sustained release structure.

[0003] Aiming at the above problems, the utility model provides a uterine cavity contraceptive device. Utility Model Content

[0004] In order to overcome the problems raised in the background technology, the utility model adopts the following technical solutions:

[0005] A uterine intrauterine device comprises an intrauterine device body and a drug sustained-release structure, wherein the intrauterine device body comprises a fixed section, a U-shaped section and an expandable section; the fixed section has a first end and a second end, the U-shaped section also has a first end and a second end, the expandable section comprises a first expandable section and a second expandable section, the two ends of the first expandable section are respectively connected to the first end of the fixed section and the first end of the U-shaped section, the two ends of the second expandable section are respectively connected to the second end of the fixed section and the second end of the U-shaped section, the first end of the drug sustained-release structure is fixedly connected to the fixed section, and the drug sustained-release structure is in a space surrounded by the fixed section, the U-shaped section and the expandable section; the surfaces of the U-shaped section and the fixed section are electroplated with a copper layer, the intrauterine device body can release copper ions, inhibit the implantation of a fertilized egg to achieve a contraceptive effect, the expandable section can change its shape, and is convenient for insertion into the uterus, the drug sustained-release structure can sustained-release the drug levonorgestrel, can treat excessive menstrual flow, and is very beneficial to patients with adenomyosis, and the combined intrauterine device can both treat excessive menstrual flow and reduce the risk of shedding.

[0006] Furthermore, the intrauterine contraceptive device also includes an insertion shell, which is provided with a accommodating cavity for holding the contraceptive device body and the drug sustained-release structure, and can restrain the expandable segment. The contraceptive device body and the drug sustained-release structure are arranged in the accommodating cavity in the insertion shell, and the contraceptive device body can move in the insertion shell.

[0007] Furthermore, a restraining head is provided at one end of the insertion shell, the restraining head is arc-shaped, the restraining head is elastic, at least one opening is provided on the restraining head, the opening is long and strip-shaped, and can ensure that the contraceptive device body extends out at the opening; the contraceptive device body is in a retracted state when inserted into the shell, and after being detached from the insertion shell, the expandable section of the contraceptive device body expands to both sides into an arc shape, which can be stuck in the uterus.

[0008] Furthermore, a cross opening is arranged on the binding head.

[0009] Furthermore, the diameter of the insertion shell at the binding head decreases continuously from the end away from the binding head to the end close to the binding head. The above arrangement is conducive to insertion into the uterine cavity through the cervical opening.

[0010] Furthermore, the drug sustained-release structure is cylindrical in shape, and levonorgestrel is arranged inside the drug sustained-release structure so as to continuously and sustainedly release the drug.

[0011] Furthermore, two connecting rods are mirror-imaged at the second end of the drug sustained-release structure, and the other ends of the two connecting rods are respectively fixedly connected to the U-shaped segment; the above arrangement fixes the positional relationship between the U-shaped segment and the fixed segment, thereby ensuring the stability of the overall structure.

[0012] Furthermore, the middle portion of the fixing section is recessed inwards. The above arrangement ensures that the fixing section is more suitable for the structure of the uterus.

[0013] Furthermore, the accommodating cavity is configured as a straight slot, the length of the straight slot is greater than the widest part of the contraceptive body, and the width of the straight slot is greater than the thickness of the contraceptive body; a circular hole is configured in the middle of the straight slot, and the diameter of the circular hole is greater than the diameter of the drug sustained-release structure.

[0014] Furthermore, the expandable section is made of memory material and can be expanded into an arc shape after being separated from the implanted shell and can be fixed in the uterus.

[0015] The beneficial effects of the utility model are as follows: the utility model has a reasonable structure; by setting the expandable section, it is ensured that the IUD can expand and unfold after entering the uterus, further reducing the risk of falling off, and cooperating with the insertion shell to reduce the discomfort during insertion; by electroplating a copper layer on the IUD body, it is ensured that the IUD body can release copper ions, inhibiting the implantation of the fertilized egg to achieve the contraceptive effect; by setting the drug sustained-release structure, levonorgestrel can be sustained-released, which can treat excessive menstrual flow and is very beneficial to patients with adenomyosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2This is a schematic diagram of the structure of the utility model when placed in a housing from a first viewing angle;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model when placed in a housing from a second viewing angle;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model placed in the housing;

[0020] In the figure, 1, fixed section; 2, U-shaped section; 3, expandable section; 4, drug sustained-release structure; 5, inserted into the shell; 6, accommodating cavity; 7, restraining head; 8, cross opening; 9, connecting rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model are clearly and completely described below through specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Those skilled in the art can easily understand other advantages and functions of the utility model from the contents disclosed in this specification. The utility model can also be implemented or applied through other different specific implementation methods. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example

[0023] Please refer to Figure 1-4 In this embodiment, an intrauterine contraceptive device includes an intrauterine contraceptive device body and a drug sustained-release structure 4. The intrauterine contraceptive device body includes a fixed segment 1, a U-shaped segment 2 and an expandable segment 3; the fixed segment 1 has a first end and a second end, the U-shaped segment 2 also has a first end and a second end, the expandable segment 3 includes a first expandable segment 3 and a second expandable segment 3, the two ends of the first expandable segment 3 are respectively connected to the first end of the fixed segment 1 and the first end of the U-shaped segment 2, the two ends of the second expandable segment 3 are respectively connected to the second end of the fixed segment 1 and the second end of the U-shaped segment 2, and the drug sustained-release structure 4 The first end is fixedly connected to the fixed section 1, and the drug sustained-release structure 4 is in the space surrounded by the fixed section 1, the U-shaped section 2 and the expandable section 3; the surface of the U-shaped section 2 and the fixed section 1 is electroplated with a copper layer, and the above-mentioned setting of the IUD body can release copper ions to inhibit the implantation of the fertilized egg to achieve the contraceptive effect. The shape of the expandable section 3 can be changed, which is convenient for insertion into the uterus. The drug sustained-release structure 4 can sustainably release drugs, and the sustained-release drug is levonorgestrel, which can treat excessive menstrual flow and is very beneficial to patients with adenomyosis. It can not only treat excessive menstruation but also reduce the risk of shedding.

[0024] In one embodiment, the sustained-release drug may also be disposed in the fixed segment 1 and the U-shaped segment 2 .

[0025] The intrauterine contraceptive device also includes an insertable shell 5, in which is provided a housing cavity 6 for containing the contraceptive device body and the drug sustained-release structure 4, which can restrain the expandable section 3. The contraceptive device body and the drug sustained-release structure 4 are arranged in the housing cavity 6 in the insertable shell 5, and the contraceptive device body can move in the insertable shell 5.

[0026] In this embodiment, the insertion shell 5 is cylindrical in shape, and the head can pass through the vagina and the cervical opening to enter the uterus; an operating rod can be set at the rear end, and the operating rod is fixedly connected to the insertion shell 5. After the insertion shell 5 is inserted into the vagina, the operating rod is outside the vagina, and medical staff can hold the operating rod to operate.

[0027] In this embodiment, a long rod may be provided in the insertion shell 5 , and the long rod may move in the insertion shell 5 to push the contraceptive device body out of the insertion shell 5 .

[0028] Please refer to Figure 2-4 , this embodiment adds the following technical features: (the following specific settings are made for the structure of the inserted shell 5): a restraining head 7 is set at one end of the inserted shell 5, the restraining head 7 is arc-shaped, the restraining head 7 is elastic, and at least one opening is set on the restraining head 7, the opening is long and can ensure that the contraceptive device body extends out at the opening; the contraceptive device body is in a retracted state when inserted into the shell 5. After being detached from the inserted shell 5, the expandable section 3 of the contraceptive device body expands to both sides into an arc shape, which can be stuck in the uterus.

[0029] A cross opening 8 is provided on the binding head 7; the insertion shell 5 at the binding head 7 has a diameter that continuously decreases from the end away from the binding head 7 to the end close to the binding head 7. The above arrangement is conducive to insertion into the uterine cavity through the cervical opening.

[0030] In another embodiment (not shown in the figure), the insertion shell 5 is cylindrical in shape, and a slope is provided on the head, and an opening is provided on the slope. A baffle is provided in the opening to prevent the IUD body from automatically falling out. The baffle is soft and has a cross opening 8. The IUD body can extend out of the baffle under the action of external force. The head of the insertion shell 5 is inclined, which makes it easier to pass through the vagina and the cervical opening to enter the uterus; an operating rod can be provided at the rear end, and the operating rod is fixedly connected to the insertion shell 5. After the insertion shell 5 is inserted into the vagina, the inside of the operating rod is hollow, and the operating rod is outside the vagina. Medical staff can hold the operating rod for operation; a long rod can be provided in the insertion shell 5, and the long rod can move in the insertion shell 5 to push the IUD body out of the insertion shell 5, and one end of the long rod is outside the vagina and extends out of the operating rod;

[0031] In some embodiments, the tip of the long rod is provided with an arc to be closer to the shape of the uterine cavity, and a handle is provided at one end outside the vagina for easy operation.

[0032] Please refer to Figure 1 The present embodiment adds the following technical features: (the drug sustained-release structure 4 is specifically configured as follows): the drug sustained-release structure 4 is cylindrical in shape, and levonorgestrel is arranged inside the drug sustained-release structure 4, which can continuously and quantitatively release the drug.

[0033] Two connecting rods 9 are mirror-imaged at the second end of the drug sustained-release structure 4, and the other ends of the two connecting rods 9 are respectively fixedly connected to the U-shaped segment 2; the above arrangement fixes the positional relationship between the U-shaped segment 2 and the fixed segment 1, thereby ensuring the stability of the overall structure; the middle portion of the fixed segment 1 is concave inward, and the above arrangement ensures that the fixed segment 1 is more suitable for the structure of the uterus.

[0034] Please refer to Figure 3 The accommodating cavity 6 is set as a straight slot, the length of the straight slot is greater than the widest part of the contraceptive device body, and the width of the straight slot is greater than the thickness of the contraceptive device body; a circular hole is set in the middle of the straight slot, and the diameter of the circular hole is greater than the diameter of the drug sustained-release structure 4.

[0035] The expandable section 3 is made of memory material, and after being separated from the insertion shell 5, it can expand and unfold into an arc shape and can be fixed in the uterus; the memory material is memory metal.

[0036] The above-mentioned embodiments are only used to understand the present invention. It should be noted that, for those skilled in the art, several improvements can be made to the present invention without departing from the principle of the present invention, and these improvements will also fall within the scope of protection of the claims of the present invention.

Claims

1. An intrauterine device, characterized in that: It includes a contraceptive device body and a drug sustained-release structure, wherein the contraceptive device body includes a fixed segment, a U-shaped segment and an expandable segment; the fixed segment has a first end and a second end, the U-shaped segment also has a first end and a second end, the expandable segment includes a first expandable segment and a second expandable segment, the two ends of the first expandable segment are respectively connected to the first end of the fixed segment and the first end of the U-shaped segment, the two ends of the second expandable segment are respectively connected to the second end of the fixed segment and the second end of the U-shaped segment, the first end of the drug sustained-release structure is fixedly connected to the fixed segment, and the drug sustained-release structure is in a space surrounded by the fixed segment, the U-shaped segment and the expandable segment; the surfaces of the U-shaped segment and the fixed segment are electroplated with a copper layer.

2. The intrauterine device according to claim 1, characterized in that: The intrauterine contraceptive device also includes an insertion shell, in which a housing cavity for the contraceptive device body and the drug release structure is provided, which can restrain the expandable section. The contraceptive device body and the drug release structure are arranged in the housing cavity in the insertion shell, and the contraceptive device body can move in the insertion shell.

3. The intrauterine device according to claim 2, characterized in that: A binding head is arranged at one end of the inserted shell, the binding head is arc-shaped, the binding head is elastic, and at least one opening is arranged on the binding head, and the opening is in the shape of a long strip.

4. The intrauterine device according to claim 3, characterized in that: A cross opening is arranged on the binding head.

5. The intrauterine device according to claim 3, characterized in that: The diameter of the inserted shell at the binding head gradually decreases from an end away from the binding head to an end close to the binding head.

6. The intrauterine device according to claim 1, characterized in that: The drug sustained-release structure is cylindrical in shape, and levonorgestrel is arranged inside the drug sustained-release structure.

7. The intrauterine device according to claim 1, characterized in that: Two connecting rods are mirror-imaged at the second end of the drug sustained-release structure, and the other ends of the two connecting rods are respectively fixedly connected to the U-shaped segment.

8. The intrauterine device according to claim 1, characterized in that: The middle portion of the fixing section is recessed inwards.

9. The intrauterine device according to claim 2, characterized in that: The accommodating cavity is configured as a straight slot, the length of which is greater than the widest part of the IUD body, and the width of which is greater than the thickness of the IUD body; a circular hole is configured in the middle of the straight slot, and the diameter of the circular hole is greater than the diameter of the drug sustained-release structure.

10. The intrauterine device according to any one of claims 1 to 9, characterized in that: The expandable section is made of memory material.