Novel LNG-IUS fixing device

Abstract

The utility model discloses a novel LNG-I US fixing device. The novel LNG-I US fixing device comprises a catheter and an adjusting assembly, a fixing cylinder is slidably connected to the interior of the guide pipe, LNG-IUS is arranged in the fixing cylinder, supporting cross arms are symmetrically arranged on the upper surface of the fixing cylinder, a connecting ring is arranged at the lower end of the fixing cylinder, containing grooves are formed in the outer cambered surface of the upper end of the fixing cylinder in a bilateral symmetry mode, and an anti-disengaging assembly is slidably connected to the lower end of the fixing cylinder; the anti-disengaging assembly is matched with the containing groove, the anti-disengaging assembly comprises a lantern ring and anti-disengaging arms, the lantern ring is slidably connected to the lower end of the fixing cylinder, and the anti-disengaging arms are arranged at the left end and the right end of the upper surface of the lantern ring; according to the novel LNG-IUS fixing device, a stable supporting structure is formed for LNG-IUS, displacement and falling are avoided, the fixing effect is good, adjustment is convenient, and the novel LNG-IUS fixing device is suitable for being used in uterine cavities of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a novel LNG-IUS fixing device. Background Art

[0002] LNG-IUS refers to the levonorgestrel-releasing intrauterine system, also known as Mirena ring, which is a white "T"-shaped intrauterine device. LNG-IUS is the only existing local drug contraceptive method with a very small progesterone-releasing structure. After the LNG-IUS is placed in the uterine cavity, it can slowly and steadily release a low dose of levonorgestrel, ensuring that after being placed in the ovarian cavity for five or six years, a small amount of progesterone can be constantly released to the local ovary, making the cervix, the intrauterine environment and the ovarian endometrium in an unsuitable state for conception, thereby obtaining a very reliable contraceptive effect. At the same time, because the ovarian endometrium is in a dormant state, it also reduces the amount of menstrual blood, shortens the menstrual bleeding time, and relieves menstrual pain. However, after the traditional LNG-IUS is placed in the uterine cavity, the contraceptive ring often moves downward or even falls off, causing complications. In addition, it is inconvenient to adjust and cannot adapt to the use of uterine cavities of different sizes. Its applicability needs to be improved. For this reason, we propose a new LNG-IUS fixing device. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a new LNG-IUS fixing device, which forms a stable supporting structure for the LNG-IUS, avoids displacement and falling off, has good fixing effect, is easy to adjust, and is suitable for use in uterine cavities of different sizes, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel LNG-IUS fixing device, comprising a catheter and an adjustment component;

[0005] The catheter is slidably connected with a fixed cylinder inside, and the fixed cylinder is provided with an LNG-IUS inside. The upper surface of the fixed cylinder is symmetrically provided with a supporting cross arm, and the lower end of the fixed cylinder is provided with a connecting ring. The upper end outer arc surface of the fixed cylinder is symmetrically provided with a receiving groove, and the lower end of the fixed cylinder is slidably connected with an anti-slip assembly, and the anti-slip assembly is arranged in cooperation with the receiving groove;

[0006] Adjustment component: Threadedly connected to the lower end of the fixing tube, the adjustment component is rotatably connected to the lower end of the anti-detachment component, and a stable support structure is formed for the LNG-IUS through the cooperation of the supporting cross arm and the anti-detachment arm, so as to prevent the fixing tube from shifting and falling off inside the uterine cavity. The fixing effect is good, the adjustment is convenient, and it can be adapted to the use of uterine cavities of different sizes.

[0007] Furthermore, the anti-slip assembly includes a ring and an anti-slip arm. The ring is slidably connected to the lower end of the fixed tube. Anti-slip arms are provided on both left and right ends of the upper surface of the ring. The anti-slip arms are respectively located inside the vertically corresponding accommodating grooves. The side walls of the uterine cavity are supported by the anti-slip arms to avoid unstable fixation of the supporting cross arms.

[0008] Furthermore, the adjustment component includes a threaded ring and an adjusting sleeve, the threaded ring is threadedly connected to the lower end of the fixed tube, the upper end of the threaded ring is rotatably connected to the lower end of the ring, the adjusting sleeve is sleeved on the lower end of the fixed tube, the upper surface of the adjusting sleeve is symmetrically provided with plugs, the plugs are respectively inserted into the corresponding holes on the lower surface of the adjusting sleeve, the outer arc surface of the adjusting sleeve is slidably connected to the inner arc surface of the catheter, the relative position of the adjusting ring and the fixed tube is adjusted so that the anti-dislocation arm can both stably support the uterine cavity wall and avoid excessive pressure on the uterine cavity wall.

[0009] Furthermore, the bottom end of the adjusting sleeve extends to the bottom of the conduit, and an array of anti-slip grooves are provided on the outer arc surface of the bottom end of the adjusting sleeve to facilitate manual rotation.

[0010] Furthermore, it also includes a T-shaped push rod, the horizontal rod body of which is inserted into the corresponding groove on the lower surface of the connecting ring to limit the fixing tube and prevent it from moving synchronously with the catheter and the adjusting sleeve.

[0011] Furthermore, a handle is provided at the lower end of the T-shaped push rod for easy handholding.

[0012] Furthermore, a ring removal line is provided at the lower end of the connecting ring to facilitate the removal of the LNG-IUS fixing device.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the new LNG-IUS fixing device has the following advantages:

[0014] Manually rotate the anti-slip groove, and the adjustment sleeve drives the threaded ring to rotate through the plug column, so that the threaded ring drives the sleeve ring to move vertically downward relative to the fixed tube, and then adjusts the position of the anti-slip arm after entering the uterine cavity, inserts the upper end of the catheter into the interior of the uterine cavity, holds the handle and pushes the connecting ring and the fixed tube through the T-shaped push rod, so that the fixed tube drives the supporting cross arm to move toward the bottom of the uterine cavity relative to the catheter. The supporting cross arm and the anti-slip arm are both made of thermoplastic elastomer, and the supporting cross arm and the anti-slip arm are both deployed under the action of their own elastic force. The new LNG-IUS fixing device forms a stable supporting structure for the LNG-IUS through the cooperation of the supporting cross arm and the anti-slip arm, which prevents the fixed tube from shifting and falling off inside the uterine cavity. It has good fixing effect and is easy to adjust, and is suitable for use in uterine cavities of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional plan structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the utility model in use;

[0018] Figure 4 This is an enlarged structural diagram of the utility model at A;

[0019] Figure 5 It is a structural schematic diagram of the adjusting sleeve of the utility model.

[0020] In the figure: 1 catheter, 2 fixing tube, 201 receiving groove, 3 supporting cross arm, 4 LNG-IUS, 5 anti-slip assembly, 51 sleeve ring, 52 anti-slip arm, 6 adjustment assembly, 61 threaded ring, 62 adjustment sleeve, 621 plug column, 7 connecting ring, 8 ring removal line, 9 anti-slip groove, 10 T-type push rod, 11 handle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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] See also Figure 1-5 ,This embodiment provides a technical solution: a novel LNG-IUS fixing device, comprising a catheter 1 and an adjustment component 6;

[0023] Catheter 1: A fixed tube 2 is slidably connected inside it, and an LNG-IUS 4 is arranged inside the fixed tube 2. A support cross arm 3 is symmetrically arranged on the upper surface of the fixed tube 2. A connecting ring 7 is arranged at the lower end of the fixed tube 2. A ring removal line 8 is arranged at the lower end of the connecting ring 7. The ring removal line 8 facilitates the removal of the LNG-IUS fixing device. A receiving groove 201 is symmetrically arranged on the upper outer arc surface of the fixed tube 2. An anti-slip component 5 is slidably connected to the lower end of the fixed tube 2. The anti-slip component 5 is arranged in cooperation with the receiving groove 201. The anti-slip component 5 includes a collar 51 and an anti-slip arm 52. The collar 51 is slidably connected to the lower end of the fixed tube 2. Anti-slip arms 52 are arranged at both ends of the upper surface of the collar 51. The anti-slip arms 52 are respectively located in the corresponding receiving grooves 201 in the vertical direction, pushing the support cross arm 3 to contact the bottom of the uterine cavity. The end of the anti-slip arm 52 away from the collar 51 contacts the side wall of the uterine cavity. The side wall of the uterine cavity is supported by the anti-slip arm 52 to avoid the unstable fixation of the support cross arm 3.

[0024] Adjustment assembly 6: Threadedly connected to the lower end of the fixed tube 2, the adjustment assembly 6 is rotatably connected to the lower end of the anti-slip assembly 5, the adjustment assembly 6 includes a threaded ring 61 and an adjustment sleeve 62, the threaded ring 61 is threadedly connected to the lower end of the fixed tube 2, the upper end of the threaded ring 61 is rotatably connected to the lower end of the sleeve 51, the adjustment sleeve 62 is sleeved on the lower end of the fixed tube 2, the upper surface of the adjustment sleeve 62 is symmetrically provided with plug posts 621, the plug posts 621 are respectively inserted into the corresponding sockets on the lower surface of the adjustment sleeve 62, and the outer arc surface of the adjustment sleeve 62 is aligned with the inner arc surface of the catheter 1 A sliding connection is used to adjust the relative position of the ring 51 and the fixed tube 2, so that the anti-slip arm 52 can not only provide stable support for the uterine cavity wall, but also avoid excessive pressure on the uterine cavity wall. The bottom end of the adjusting sleeve 62 extends to the bottom of the catheter 1, and the outer arc array at the bottom end of the adjusting sleeve 62 is provided with an anti-slip groove 9 for convenient manual rotation. By manually rotating the anti-slip groove 9, the adjusting sleeve 62 drives the threaded ring 61 to rotate through the plug 621, so that the threaded ring 61 drives the ring 51 to move vertically downward relative to the fixed tube 2, thereby adjusting the position of the anti-slip arm 52 after entering the uterine cavity.

[0025] Wherein: it also includes a T-shaped push rod 10, the horizontal rod body of the T-shaped push rod 10 is inserted into the corresponding groove on the lower surface of the connecting ring 7, the handle 11 is held and the connecting ring 7 and the fixed tube 2 are pushed through the T-shaped push rod 10, so that the fixed tube 2 drives the supporting cross arm 3 to move toward the bottom of the uterine cavity relative to the catheter 1, and the T-shaped push rod 10 limits the fixed tube 2 to prevent it from moving synchronously with the catheter 1 and the adjusting sleeve 62. The lower end of the T-shaped push rod 10 is provided with a handle 11 for easy holding.

[0026] The working principle of a new LNG-IUS fixing device provided by the utility model is as follows:

[0027] Manually rotate the anti-slip groove 9, and the adjusting sleeve 62 drives the threaded ring 61 to rotate through the plug column 621, so that the threaded ring 61 drives the collar 51 to move vertically downward relative to the fixed cylinder 2, and then adjusts the position of the anti-slip arm 52 after entering the uterine cavity, inserts the upper end of the catheter 1 into the interior of the uterine cavity, holds the handle 11 and pushes the connecting ring 7 and the fixed cylinder 2 through the T-shaped push rod 10, so that the fixed cylinder 2 drives the supporting cross arm 3 to move toward the bottom of the uterine cavity relative to the catheter 1, and the supporting cross arm 3 and the anti-slip arm 52 are both made of thermoplastic elastomer, and the supporting cross arm 3 and the anti-slip arm 52 are both unfolded under the action of their own elastic force, and the supporting cross arm 3 is pushed to contact the bottom of the uterine cavity through the T-shaped push rod 10, and the end of the anti-slip arm 52 away from the collar 51 contacts the side wall of the uterine cavity, and then through the T-shaped push rod 10 The control connecting ring 7 and the fixed tube 2 remain stationary, and the catheter 1 is pulled downward to be completely separated from the lower end of the fixed tube 2. At this time, the lower end of the adjusting sleeve 62 moves downward synchronously under the push of the catheter 1, and the plug post 621 is separated from the corresponding socket set on the lower surface of the adjusting sleeve 62. The catheter 1, the adjusting sleeve 62 and the T-shaped push rod 10 are synchronously taken out from the inside of the cervical canal. Since the supporting cross arm 3 is in contact with the bottom of the uterine cavity, the end of the anti-detachment arm 52 away from the ring 51 is in contact with the side wall of the uterine cavity, the supporting cross arm 3 and the anti-detachment arm 52 can cooperate to form a stable supporting structure for the LNG-IUS to prevent the fixed tube 2 from shifting and falling off inside the uterine cavity. It should be noted that the relative position of the anti-detachment arm 52 and the fixed tube 2 can be determined based on the female's uterine color Doppler ultrasound.

[0028] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A new type of LNG-IUS fixing device, characterized by: It comprises a catheter (1) and an adjustment component (6); The conduit (1) is slidably connected to a fixed cylinder (2) inside thereof, an LNG-IUS (4) is arranged inside the fixed cylinder (2), a support cross arm (3) is symmetrically arranged on the upper surface of the fixed cylinder (2), a connecting ring (7) is arranged at the lower end of the fixed cylinder (2), a receiving groove (201) is symmetrically arranged on the upper outer arc surface of the fixed cylinder (2), an anti-slip assembly (5) is slidably connected to the lower end of the fixed cylinder (2), and the anti-slip assembly (5) is arranged in cooperation with the receiving groove (201); An adjusting component (6) is threadedly connected to the lower end of the fixing tube (2), and the adjusting component (6) is rotatably connected to the lower end of the anti-slip component (5).

2. A novel LNG-IUS fixing device according to claim 1, characterized in that: The anti-slip assembly (5) comprises a collar (51) and an anti-slip arm (52); the collar (51) is slidably connected to the lower end of the fixed tube (2); the left and right ends of the upper surface of the collar (51) are provided with anti-slip arms (52); the anti-slip arms (52) are respectively located inside the vertically corresponding accommodating grooves (201).

3. A novel LNG-IUS fixing device according to claim 2, characterized in that: The adjustment assembly (6) comprises a threaded ring (61) and an adjustment sleeve (62); the threaded ring (61) is threadedly connected to the lower end of the fixed tube (2); the upper end of the threaded ring (61) is rotatably connected to the lower end of the sleeve (51); the adjustment sleeve (62) is sleeved on the lower end of the fixed tube (2); the upper surface of the adjustment sleeve (62) is symmetrically provided with plug posts (621); the plug posts (621) are respectively plugged into the corresponding plug holes on the lower surface of the adjustment sleeve (62); the outer arc surface of the adjustment sleeve (62) is slidably connected to the inner arc surface of the catheter (1).

4. A novel LNG-IUS fixing device according to claim 3, characterized in that: The bottom end of the adjusting sleeve (62) extends to the bottom of the conduit (1), and an array of anti-slip grooves (9) are provided on the outer arc surface of the bottom end of the adjusting sleeve (62).

5. A novel LNG-IUS fixing device according to any one of claims 1 to 4, characterized in that: It also comprises a T-shaped top rod (10), the horizontal rod body of the T-shaped top rod (10) being inserted into a corresponding groove arranged on the lower surface of the connecting ring (7).

6. A novel LNG-IUS fixing device according to claim 5, characterized in that: A handle (11) is provided at the lower end of the T-shaped push rod (10).

7. A novel LNG-IUS fixing device according to claim 1, characterized in that: A ring removal line (8) is provided at the lower end of the connecting ring (7).

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