Reversible contraceptive device

Abstract

The reversible intrauterine device comprises a magnetic attraction nail fixed to the position of a uterine cavity fallopian tube, the magnetic attraction nail comprises a fixing part and a magnetic attraction part, the magnetic attraction part is fixedly connected with the fixing part, the fixing part is fixed to the uterine cavity wall at the position of an opening of the fallopian tube, and the magnetic attraction part is detachably connected with a plugging component used for plugging the fallopian tube. The magnetic attraction nail is nailed at the opening of the fallopian tube, the plugging component is attracted to the magnetic attraction nail in a magnetic attraction mode, the fixing effect of the plugging component can be improved, the plugging component is not prone to falling off after long-term use, and therefore the birth control effect is improved. And meanwhile, the plugging component can be conveniently taken down in the later period through the magnetic attraction fixing mode.

Description

Technical Field

[0001] The present invention relates to the technical field of birth control devices, and in particular to a reversible birth control device. Background Art

[0002] An IUD is a contraceptive device placed in the uterine cavity. Since most of the devices used in the early stage were ring-shaped, they are also called birth control rings. IUDs are usually made of stainless steel, plastic, silicone rubber and other materials. An IUD without medicine is called an inert intrauterine contraceptive device. If an intrauterine contraceptive device is added with progesterone or copper, the contraceptive effect can be improved, and it is called a medicated or active intrauterine contraceptive device. An IUD is one of the most commonly used contraceptive devices.

[0003] There are many types of intrauterine devices, including metal single ring, twisted ring, mixed ring, IUD, T-ring, etc. After the IUD is implanted in the uterus, problems such as IUD falling off often occur, causing complications. The following is a further explanation using the T-ring as an example. The T-ring consists of a vertical bar and a horizontal bar. The two ends of the horizontal bar are placed at the fallopian tubes in the uterine cavity. The horizontal bar and the fallopian tube are fixed only by friction. However, during long-term use, the two ends of the horizontal bar will slowly slip out of the fallopian tube, and the ends of the horizontal bar will press against the inner wall of the uterus, causing the uterus to contract and rub against the inner wall of the uterus. When the uterus contracts, the pressure effect between the two ends of the horizontal bar and the inner wall of the uterus is stronger, and the probability of bleeding is higher. The horizontal bar will also slowly deform, gradually changing from T-shaped to Y-shaped. When the above situation occurs, the IUD is easy to fall off from the uterus for users with a loose cervical os. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a reversible contraceptive device which can improve the birth control effect and is reversible so as to restore the cannulation of the fallopian tube.

[0005] The present invention is achieved in that:

[0006] The present invention provides a reversible contraceptive device, comprising a magnetic nail fixed at a fallopian tube in a uterine cavity, wherein the magnetic nail comprises a fixing portion and a magnetic attraction portion, wherein the magnetic attraction portion is fixedly connected to the fixing portion, wherein the fixing portion is fixed to the wall of the uterine cavity at the opening of the fallopian tube, and the magnetic attraction portion is detachably connected to a blocking component for blocking the fallopian tube.

[0007] Furthermore, the blocking component includes a cover that matches the fallopian tube opening, a magnetic metal sheet is provided on the side of the cover, and the magnetic attraction portion is attracted to the metal sheet.

[0008] Furthermore, the sealing cover is made of polytetrafluoroethylene or metal.

[0009] Furthermore, a metal wire is provided on a side of the sealing cover facing away from the metal sheet.

[0010] Furthermore, the blocking component includes an embolic portion with an elliptical longitudinal section, the embolic portion is inserted into the fallopian tube, the embolic portion is made of a magnetic metal block and a coating portion coating the outside of the metal block, and the magnetic attraction portion is attracted to the metal block.

[0011] Furthermore, the embolization part is connected to a cylindrical part, and the cylindrical part is connected to an arc-shaped blocking piece that fits the uterine cavity wall.

[0012] Furthermore, the cylindrical portion is connected with a tail wire.

[0013] Furthermore, a groove is provided on one side of the covering portion close to the cylindrical portion, and when the embolization portion is placed in the fallopian tube, the magnetic attraction portion is engaged in the groove.

[0014] Furthermore, the fixing portion includes a fixing block with an elliptical longitudinal section, the fixing block is arranged on the outside of the uterine cavity wall at the fallopian tube opening, the fixing block is connected to a suture, one end of the suture passes through the uterine cavity wall and extends to the fallopian tube opening, and the magnetic attraction portion is fixedly connected to the end of the suture.

[0015] The advantages of the present invention are that the magnetic nail is nailed to the opening of the fallopian tube, and the blocking component is attracted to the magnetic nail by magnetic attraction, which can improve the fixing effect of the blocking component. After long-term use, the blocking component is not easy to fall off, thereby improving the birth control effect. At the same time, the magnetic fixation method also facilitates the removal of the blocking component at a later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0017] Figure 1 It is a schematic structural diagram of a specific implementation mode of the present invention when the blocking part is a cover.

[0018] Figure 2 It is a schematic structural diagram of a specific implementation mode of the present invention when the occluding part is an embolization part.

[0019] Figure 3 It is a structural schematic diagram of the magnetic nail of the present invention.

[0020] Figure 4 It is a schematic diagram of the sealing structure of the present invention.

[0021] Figure 5 It is a schematic diagram of the connection structure between the plugging part, the cylindrical section and the arc-shaped baffle of the present invention.

[0022] Description of the numbers in the figure:

[0023] 1. Magnetic nail; 11. Fixing part; 111. Fixing block; 112. Suture; 12. Magnetic part; 2. Cover; 3. Metal sheet; 4. Metal wire; 5. Embolization part; 51. Metal block; 52. Covering part; 521. Groove; 6. Cylindrical part; 7. Arc-shaped baffle; 8. Tail wire. DETAILED DESCRIPTION

[0024] See also Figures 1 to 5 The present invention provides a reversible contraceptive device, which is worn on the fallopian tubes on both sides of the uterine cavity, and includes a magnetic nail 1 fixed on the fallopian tubes in the uterine cavity. The magnetic nail 1 includes a fixing part 11 and a magnetic part 12. The magnetic part 12 is fixedly connected to the fixing part 11. The fixing part 11 is fixed on the uterine cavity wall at the fallopian tube opening. The magnetic part 12 is detachably connected with a blocking component for blocking the fallopian tube.

[0025] When in use, magnetic nails 1 are fixed to the fallopian tubes on both sides of the uterine cavity, and the number of magnetic nails 1 at each fallopian tube is at least two. After the blocking component is fixed to the magnetic nail 1, the blocking component blocks the fallopian tube, thereby achieving the purpose of contraception. When you need to get pregnant again, remove the blocking component through the remover and pull out the magnetic nail 1. After resting for 3-6 months, the uterus can return to normal. After the IUD is removed, the fertility can be restored, achieving a reversible effect.

[0026] Specifically, the blocking component includes a cover 2 that matches the fallopian tube opening. In order to better block the fallopian tube and reduce the discomfort of wearing, the diameter of the cover 2 is 0.2-0.5mm larger than the fallopian tube opening. Since the diameters of the fallopian tube openings of different people are different, the diameter of the cover 2 can be set to three or more sizes to suit different people. A magnetic metal sheet 3 is provided on the side of the cover 2, and the magnetic attraction portion 12 is attracted to the metal sheet 3.

[0027] Specifically, the material of the cover 2 is polytetrafluoroethylene or metal. The cover 2 made of polytetrafluoroethylene is not easy to adhere to human tissue, so as to avoid difficulties in removing it in the future. When the cover is made of metal, the position of the cover can be observed by B-ultrasound or X-ray. The wearer regularly checks whether the cover falls off by performing B-ultrasound examination or taking X-rays to avoid the loss of contraceptive effect.

[0028] Specifically, a metal wire 4 is provided on the side of the cover 2 facing away from the metal sheet 3. When the cover 2 needs to be taken out, the metal wire 4 is clamped by a take-out device, and the cover 2 is led outward, so that the cover 2 can be taken out.

[0029] Specifically, the blocking component includes an embolic portion 5 with an elliptical longitudinal section, and the embolic portion 5 is placed in the fallopian tube. The middle size of the embolic portion 5 is larger than the size of the head and tail ends, and the embolic portion 5 with an elliptical structure can play a better role in blocking the fallopian tube. The embolic portion 5 is made of a magnetic metal block 51 and a coating portion 52 coated on the outside of the metal block 51, and the magnetic attraction portion 12 is attracted to the metal block 51. The coated metal block 51 is visible under B-ultrasound or X-ray examination. The wearer regularly performs B-ultrasound examination or takes X-rays to check whether the embolic portion falls off to avoid the loss of contraceptive effect.

[0030] The covering portion 52 is a thin-walled structure, and specifically, the thickness of the covering portion 52 is 0.2-0.3 mm. The covering portion 52 is set as a thin-walled structure so that the magnetic nail 1 can attract the metal block 51 through the covering portion 52 to achieve the function of fixing the embolization portion 5. Since the diameters of the fallopian tubes of different people are different, the embolization portion 5 can be set in three or more sizes to adapt to different people.

[0031] Specifically, in order to prevent the plugging part 5 from sliding into the fallopian tube after long-term wearing, so that the plugging part 5 is too deep into the fallopian tube and causes discomfort, an arc-shaped baffle 7 is provided in the present application. After the plugging part 5 is inserted into the fallopian tube, the arc-shaped baffle 7 fits with the uterine cavity wall. The plugging part 5 is connected to a cylindrical part 6, and the cylindrical part 6 is connected to an arc-shaped baffle 7 that fits with the uterine cavity wall. The arc-shaped baffle 7 is arranged at the lower edge of the cylindrical part 6. The axial direction of the cylindrical part 6 is parallel to the long axis direction of the elliptical plugging part 5.

[0032] Specifically, the cylindrical portion 6 is connected with a tail wire 8. The provision of the tail wire 8 facilitates the removal of the embolization portion 5.

[0033] Specifically, a groove 521 is provided on one side of the covering portion 52 close to the cylindrical portion 6, and when the embolization portion 5 is placed in the fallopian tube, the magnetic attraction portion 12 is engaged in the groove 521. The groove 521 is provided on the covering portion 52. On the one hand, the distance between the magnetic attraction portion 12 and the metal block 51 is reduced, so that the magnetic attraction portion 12 has a better attraction effect on the metal block 51, and the fixing effect of the embolization portion 5 is increased. On the other hand, the groove 521 and the magnetic attraction portion 12 form a snap-fit ​​structure, which can further prevent the embolization portion 5 from slipping out of the fallopian tube. In addition, the embolization portion 5 with an elliptical structure has smaller dimensions at both ends than in the middle, and the magnetic attraction portion 12 is attracted to the ends of the embolization portion 5, which can further prevent the embolization portion 5 from slipping out. If the embolization portion 5 slips out, when the middle part of the embolization portion 5 is in contact with the magnetic attraction portion 12, the magnetic attraction portion 12 will hinder the embolization portion 5, making it difficult for the embolization portion 5 to slip out.

[0034] Specifically, the fixing part 11 includes a fixing block 111 with an elliptical longitudinal section, the fixing block 111 is arranged on the outside of the uterine cavity wall at the fallopian tube opening, the fixing block 111 is connected with a suture 112, one end of the suture 112 passes through the uterine cavity wall and extends to the fallopian tube opening, and the magnetic suction part 12 is fixedly connected to the end of the suture 112. When the contraceptive device is placed in the uterine cavity, the magnetic suction nail 1 is pre-installed at the fallopian tube opening. When the magnetic suction nail 1 is installed, the suture passes through the uterine cavity wall at the fallopian tube opening, the fixing block is located on the outside of the uterine cavity wall at the fallopian tube opening, and is fixedly connected to one end of the suture, and the magnetic suction part is located on the inside of the uterine cavity wall at the fallopian tube opening, and is fixedly connected to the other end of the suture. The fixing block and the magnetic suction part are connected by sutures to fix the magnetic suction nail at the fallopian tube opening.

[0035] A specific application of the present invention is:

[0036] When the contraceptive device is inserted into the uterine cavity, several magnetic nails 1 are pre-installed at the fallopian tube. Subsequently, with the cooperation of the hysteroscope, the blocking component is inserted into the uterine cavity and fixed with the magnetic nails 1. In the present application, the blocking components are divided into two types, one of which is installed at the opening of the fallopian tube, and the other is inserted into the fallopian tube.

[0037] When the blocking component is the cover 2, the side with the metal sheet 3 is brought close to the magnetic pin 1, and the cover 2 is fixed to the opening of the fallopian tube through the magnetic pin 1. The cover 2 blocks the fallopian tube, thereby achieving the purpose of contraception. When you need to get pregnant again, remove the blocking component through the remover and pull out the magnetic pin 1. After resting for 3-6 months, the uterus can return to normal. After the IUD is removed, the fertility can be restored, achieving a reversible effect.

[0038] When the blocking component is the embolic part 5, the embolic part 5 is inserted into the fallopian tube with the cooperation of the hysteroscope. After the embolic part 5 is installed in the appropriate position, the magnetic nail 1 is just engaged in the groove 521 to achieve the purpose of fixing the embolic part 5. The fallopian tube is blocked by the embolic part 5, thereby achieving the purpose of contraception. When you need to get pregnant again, remove the blocking component through the remover and pull out the magnetic nail 1. After resting for 3-6 months, the uterus can return to normal. After being removed, this contraceptive device can regain fertility and achieve a reversible effect. The magnetic nail 1 is nailed to the opening of the fallopian tube, and the blocking component is attracted to the magnetic nail 1 by magnetic attraction, which can improve the fixing effect of the blocking component. After long-term use, the blocking component is not easy to fall off, thereby improving the effect of birth control. At the same time, the magnetic fixation method also facilitates the removal of the blocking component at a later time.

[0039] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A reversible contraceptive device, characterized in that: It includes a magnetic nail fixed at the fallopian tube in the uterine cavity, the magnetic nail includes a fixing part and a magnetic attraction part, the magnetic attraction part is fixedly connected to the fixing part, the fixing part is fixed on the uterine cavity wall at the fallopian tube opening, and the magnetic attraction part is detachably connected with a blocking component for blocking the fallopian tube.

2. A reversible contraceptive device according to claim 1, characterized in that: The blocking component comprises a cover that matches the fallopian tube opening, a magnetic metal sheet is arranged on the side of the cover, and the magnetic attraction part is attracted to the metal sheet.

3. A reversible contraceptive device as claimed in claim 2, characterized in that: The sealing cover is made of polytetrafluoroethylene or metal.

4. A reversible contraceptive device as claimed in claim 2, characterized in that: A metal wire is arranged on a side of the cover facing away from the metal sheet.

5. A reversible contraceptive device as claimed in claim 1, characterized in that: The blocking component includes an embolic portion with an elliptical longitudinal section, the embolic portion is placed in the fallopian tube, the embolic portion is made of a magnetic metal block and a covering portion covering the outside of the metal block, and the magnetic attraction portion is attracted to the metal block.

6. A reversible contraceptive device according to claim 5, characterized in that: The embolization part is connected with a cylindrical part, and the cylindrical part is connected with an arc-shaped blocking piece which fits with the uterine cavity wall.

7. A reversible contraceptive device according to claim 6, characterized in that: The cylindrical portion is connected with a tail wire.

8. A reversible contraceptive device according to claim 6, characterized in that: A groove is arranged on one side of the covering part close to the cylindrical part, and when the plugging part is placed in the fallopian tube, the magnetic attraction part is engaged in the groove.

9. A reversible contraceptive device as claimed in claim 1, characterized in that: The fixing part includes a fixing block with an elliptical longitudinal section, the fixing block is arranged on the outside of the uterine cavity wall at the fallopian tube opening, the fixing block is connected with a suture, one end of the suture passes through the uterine cavity wall and extends to the fallopian tube opening, and the magnetic attraction part is fixedly connected to the end of the suture.

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