High-stability double-tube balloon stent for preventing and treating intrauterine adhesion

Abstract

The high-stability double-tube balloon stent for preventing and treating intrauterine adhesion comprises a sleeve, fixing blocks are connected to the two sides of the sleeve, a supporting frame is hinged to the interiors of the fixing blocks, the outer side of the supporting frame is sleeved with a first air bag strip, a contraction mechanism is arranged on the supporting frame, and the contraction mechanism is used for contraction and release adjustment of the supporting frame attached to the inner wall of a uterine cavity. The contraction mechanism comprises a rotating rod inserted into the sleeve, one end of the rotating rod is connected with a connecting ring, the two sides of the connecting ring are connected with protruding blocks, the outer sides of the protruding blocks are connected with transmission blocks, one side of each transmission block is sleeved with a connecting sleeve block, and air bag balls are arranged at the top and the bottom of each connecting sleeve block. The top and the bottom of the connecting sleeve block are both rotationally connected with one ends of the supporting frames, the inner walls of the supporting frames on the two sides are both connected with medicine conveying pipes, medicine applying holes are formed in the medicine conveying pipes, and the problem that due to the fact that the frame is large in size, a patient is injured when passing through the cervix is solved.

Description

Technical Field

[0001] The invention relates to the field of a high-stability double-tube balloon stent for preventing and treating intrauterine adhesions, and in particular to a high-stability double-tube balloon stent for preventing and treating intrauterine adhesions. Background Art

[0002] Intrauterine adhesions are uterine adhesions that can cause amenorrhea and endometriosis. Secondary infertility and subsequent pregnancy can cause miscarriage. Under normal physiological conditions, the anterior and posterior walls of the normal uterine cavity are in contact and closed, and adhesions will not occur even when the endometrium is exfoliated during menstruation, all because of the integrity and normal function of the basal layer of the endometrium. If the endometrium is damaged by physical and chemical factors such as surgery or inflammation, causing the destruction of the basal layer of the endometrium, it will change the regular growth and shedding of the endometrium during the normal menstrual cycle. Therefore, some stents are needed to prevent intrauterine adhesions.

[0003] With the development of the times, women's needs need more and more attention. However, the shapes of some existing double-tube balloon stents are set according to the shape of the female cervical cavity, but the shape of the stent is fixed and single and the volume is large. When entering the female uterine cavity, due to the large resistance, it is easy to cause pain in the patient's cervical opening and cause psychological trauma to the patient.

[0004] Therefore, it is necessary to provide a new high-stability double-tube balloon stent for preventing and treating intrauterine adhesions to solve the above technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a double-tube balloon stent for preventing and treating intrauterine adhesions, which has high stability and is easy to peel off.

[0006] The double-tube balloon stent with high stability for preventing and treating intrauterine adhesion provided by the present invention comprises a sleeve, both sides of the sleeve are connected with fixed blocks, the interior of the fixed block is hinged with a support frame, the outer side of the support frame is sleeved with a first airbag strip, a contraction mechanism is provided on the support frame, the contraction mechanism is used for adjusting the support frame to fit the inner wall of the uterine cavity, the contraction mechanism comprises a rotating rod inserted in the sleeve, one end of the rotating rod is connected with a connecting ring, both sides of the connecting ring are connected with protrusions, and the outer side of the protrusion is connected with a transmission block, one side of the transmission block is sleeved with a connecting sleeve block, the top and bottom of the connecting sleeve block are provided with airbag balls, the top and bottom of the connecting sleeve block are rotatably connected to one end of the support frame, the inner walls of the support frames on both sides are connected with drug delivery tubes, and the drug delivery tubes are provided with drug application holes.

[0007] In order to prevent the inner wall of the uterine cavity from fitting against the support frame, the present invention provides a double-tube balloon stent with high stability for preventing and treating uterine adhesions. Preferably, a connecting frame is connected to one side of the connecting ring, and the connecting frame is inserted into the inside of the sleeve, and the connecting frame is sleeved on the outside of the rotating rod, and a second airbag strip is inserted into the connecting frame.

[0008] In order to facilitate the movement of the first airbag strip, the present invention provides a high-stability double-tube balloon stent for preventing and treating intrauterine adhesions. Preferably, the side of the connecting ring away from the rotating rod is connected with an insertion rod, and the side of the first airbag strip is connected with a connecting block, and the insertion rod is inserted into the inside of the connecting block.

[0009] In order to facilitate the contraction of the transmission block inside the connecting sleeve, the present invention provides a high-stability double-tube balloon stent for preventing and treating intrauterine adhesions. Preferably, one end of the transmission block is inserted into the inner cavity of the connecting sleeve, and the inner cavity of the connecting sleeve is connected to a contraction spring, one end of the contraction spring is connected to one side of the transmission block, and limiting protrusions are provided on both sides of one end of the transmission block.

[0010] In order to facilitate the effect of pulling the second airbag strip back into the sleeve, the present invention provides a high-stability double-tube balloon stent for preventing and treating intrauterine adhesions. Preferably, a tension spring is connected to the inside of the sleeve, and one end of the tension spring is connected to one end of the connecting frame.

[0011] In order to achieve the effect of facilitating separate drug administration, the present invention provides a high-stability double-tube balloon stent for preventing and treating intrauterine adhesions. Preferably, a first drug administration tube and a second drug administration tube are respectively provided on both sides of the sleeve, and the discharge ends of the first drug administration tube and the second drug administration tube are connected to the feed end of the drug delivery tube.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] Contraction mechanism: Before entering the human uterine cavity, the distance between the support frames on both sides is contracted to reduce the overall volume of the support frames, making it easier to enter the uterine cavity through the uterine cavity opening. After entering the uterine cavity, the rotating rod is rotated to drive the connecting ring to move, and the connecting ring drives the connecting sleeve block to move through the transmission block, thereby driving the support frames on both sides to expand, so that the first airbag strip on the outside of the support frame is expanded and fits the inner wall of the uterine cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a preferred embodiment of a high-stability double-tube balloon stent for preventing and treating intrauterine adhesions provided by the present invention;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure of the contraction mechanism shown;

[0016] Figure 3 for Figure 1 Structural contraction diagram of the support block shown;

[0017] Figure 4 for Figure 3 A schematic diagram of the structure enlargement at the center A;

[0018] Figure 5 for Figure 3 Structural cross-sectional view of the middle sleeve and the rotating rod.

[0019] Numbers in the figure: 1. sleeve; 2. contraction mechanism; 21. rotating rod; 22. connecting ring; 23. transmission block; 24. connecting sleeve block; 26. drug delivery tube; 3. first air bag strip; 4. second air bag strip; 5. connecting block; 6. air bag ball; 7. insertion rod; 8. fixing block; 9. drug application hole; 10. contraction spring; 11. first drug delivery tube; 12. second drug delivery tube; 13. connecting frame; 14. tension spring; 15. support frame. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in Figure 1 A schematic structural diagram of a preferred embodiment of a high-stability double-tube balloon stent for preventing and treating intrauterine adhesions provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of the contraction mechanism shown; Figure 3 for Figure 1 Structural contraction diagram of the support block shown;

[0022] Figure 4 for Figure 3 A schematic diagram of the structure enlargement at the center A; Figure 5 for Figure 3Structural cross-sectional view of the middle sleeve and the rotating rod. A double-tube balloon stent with high stability for preventing and treating intrauterine adhesions comprises a sleeve 1, both sides of the sleeve 1 are connected with a fixed block 8, the interior of the fixed block 8 is hinged with a support frame 15, the outer side of the support frame 15 is sleeved with a first airbag strip 3, and the support frame 15 is provided with a contraction mechanism 2, which is used for adjusting the support frame 15 to fit the inner wall of the uterine cavity; the contraction mechanism 2 comprises a rotating rod 21 inserted into the sleeve 1, one end of the rotating rod 21 is connected with a connecting ring 22, both sides of the connecting ring 22 are connected with protrusions, and the outer side of the protrusion is connected with a transmission block 23, one side of the transmission block 23 is sleeved with a connecting sleeve block 24, the top and bottom of the connecting sleeve block 24 are provided with airbag balls 6, the top and bottom of the connecting sleeve block 24 are rotatably connected to one end of the support frame 15, and the inner walls of the support frames 15 on both sides are connected with drug delivery tubes 26, and the drug delivery tubes 26 are provided with drug application holes 9.

[0023] The outer side of the rotating rod 21 is threadedly connected to the inner side of the sleeve 1, and one end of the rotating rod 21 is slidably inserted into the inner side of the connecting ring 22. The connecting ring 22 and the protrusions on both sides are injection-molded integral parts. The outer side of the protrusion is hinged to the inner side of the transmission block 23. One end of the transmission block 23 is slidably inserted into the inner side of the connecting sleeve block 24. The outer side of the connecting sleeve block 24 is rotatably connected to the inner side of one end of the support frame 15. The bottom of the airbag ball 6 is adhered to the surface of the support frame 15. One end of the support frame 15 is hinged to the fixed block 8. The fixed block 8 is injection-molded integrally with the sleeve 1. The drug delivery tube 26 is injection-molded integrally with the support frame 15.

[0024] By arranging the airbag ball 6 and the first airbag strip 3 on the outer side of the support frame 15, the contact area between the inner wall of the cervix and the support frame 15 is reduced, thereby reducing friction.

[0025] refer to Figure 2 , Figure 3 and Figure 5 As shown, a connecting frame 13 is connected to one side of the connecting ring 22 . The connecting frame 13 is inserted into the inside of the sleeve 1 . The connecting frame 13 is sleeved on the outside of the rotating rod 21 . The second airbag strip 4 is inserted into the connecting frame 13 .

[0026] The connecting frame 13 is sleeved on the outside of the rotating rod 21, and the second airbag strip 4 is arranged on the connecting frame 13, so that the threads on the outside of the rotating rod 21 will not contact the inner wall of the cervix during the rotation of the rotating rod 21. At the same time, the second airbag strip 4 and the airbag ball 6 can prevent the inner wall of the cervix from contracting and fitting with the top and bottom of the support frame 15 to produce friction.

[0027] refer to Figure 2 and Figure 3 As shown, the side of the connecting ring 22 away from the rotating rod 21 is connected to the inserting rod 7 , the side of the first airbag strip 3 is connected to the connecting block 5 , and the inserting rod 7 is inserted into the inside of the connecting block 5 .

[0028] The insertion rod 7 and the connecting ring 22 are an integral injection-molded part. The insertion rod 7 is slidably inserted in the interior of the connecting block 5. The connecting block 5 and the first airbag strip 3 are an integral injection-molded part.

[0029] refer to Figure 2 , Figure 3 and Figure 4 As shown, one end of the transmission block 23 is inserted into the inner cavity of the connecting sleeve block 24, the inner cavity of the connecting sleeve block 24 is connected to the contraction spring 10, one end of the contraction spring 10 is connected to one side of the transmission block 23, and limiting protrusions are provided on both sides of one end of the transmission block 23.

[0030] It should be noted that one end of the transmission block 23 is slidably inserted into the interior of the connecting sleeve block 24, the contraction spring 10 is fixed to the interior of the connecting sleeve block 24 by bolts, one end of the contraction spring 10 is fixed to one end of the transmission block 23 by bolts, and the transmission block 23 and the limiting protrusion are an integral injection-molded part.

[0031] refer to Figure 2 and Figure 5 As shown, a tension spring 14 is connected to the interior of the sleeve 1 , and one end of the tension spring 14 is connected to one end of the connection frame 13 .

[0032] It should be noted that one end of the tension spring 14 is fixed to the inner wall of the sleeve 1 by bolts, one end of the tension spring 14 is fixed to one end of the connecting frame 13 by bolts, and the connecting frame 13 is adhesively connected to the second airbag strip 4 .

[0033] refer to Figure 1 and Figure 2 As shown, a first drug delivery tube 11 and a second drug delivery tube 12 are respectively provided on both sides of the sleeve 1 , and the discharge ends of the first drug delivery tube 11 and the second drug delivery tube 12 are both connected to the feed end of the drug delivery tube 26 .

[0034] It should be noted that the first drug delivery tube 11 and the second drug delivery tube 12 are both slidably inserted into the sleeve 1, and the shapes of the feeding ends of the first drug delivery tube 11 and the second drug delivery tube 12 are adapted to the shape of the needle to facilitate the insertion of the needle.

[0035] The working principle of the high-stability double-tube balloon stent for preventing and treating intrauterine adhesions provided by the present invention is as follows:

[0036] When in use, before entering the uterine cavity, the support frames 15 on both sides of the sleeve 1 are in a contracted state, which is convenient for reducing the volume, reducing the resistance of the support frame 15 when entering, and alleviating the patient's discomfort. When it is necessary to enter the uterine cavity, some lubricating liquid can be applied to the first airbag strip 3 on the outside of the support frame 15 in advance to reduce the friction between the first airbag strip 3 and the support frame 15. After the contracted support frame 15 and the first airbag strip 3 enter the cervix, the medical staff can rotate the rotating rod 21 clockwise, and the rotating rod 21 moves inside the sleeve 1. During the rotation of the rotating rod 21, the connecting ring 22 is driven to move. The connecting ring 22 drives the protrusions on both sides to move respectively, and the protrusions on both sides drive the transmission block 23 to move, and the transmission block 23 drives the connecting sleeve block 24 to move. The connecting sleeve block 24 rotates along the connection with the support frame 15. When the connecting ring 22 moves to a certain position, the connecting sleeve block 24 drives the support frame 15 to move to both sides, thereby making the support frame 15 is unfolded inside the uterine cavity, and the support frame 15 drives the outer first airbag strip 3 to move, so that the first airbag strip 3 is fitted with the inner wall of the uterine cavity. The degree of expansion of the support frame 15 can be adjusted according to the needs of the patient. When the connecting ring 22 drives the protrusions on both sides to move, it also drives the connecting frame 13 to move. The connecting frame 13 drives the second airbag strip 4 on the surface to move, so that the second airbag strip 4 extends out of the sleeve 1. The second airbag strip 4 and the airbag ball 6 are convenient for reducing the friction between the uterine cavity and the top and bottom of the support frame 15. Medical staff can insert the syringe filled with medicine into the feeding ends of the first dosing tube 11 and the second dosing tube 12 respectively, and then press the syringe to make the medicine pass through the first dosing tube 11 and the second dosing tube 12 into the inside of the drug delivery tube 26, and enter the uterine cavity from the drug application hole 9. When the support frame 15 needs to be taken out, the rotating rod 21 can be rotated counterclockwise so that the rotating rod 21 drives the support frame 15 to shrink and reduce the overall volume.

[0037] The above descriptions are merely 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 present invention specification and drawings, 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 high-stability double-tube balloon stent for preventing and treating intrauterine adhesions, characterized in that: The invention comprises a sleeve (1), both sides of the sleeve (1) are connected to fixing blocks (8), a support frame (15) is hingedly connected inside the fixing block (8), a first airbag strip (3) is sleeved on the outer side of the support frame (15), and a contraction mechanism (2) is arranged on the support frame (15), and the contraction mechanism (2) is used for adjusting the support frame (15) to fit the inner wall of the uterine cavity; The retracting mechanism (2) comprises a rotating rod (21) inserted into the sleeve (1), one end of the rotating rod (21) is connected to a connecting ring (22), both sides of the connecting ring (22) are connected to protrusions, and the outer side of the protrusion is connected to a transmission block (23), one side of the transmission block (23) is sleeved with a connecting sleeve block (24), the top and bottom of the connecting sleeve block (24) are provided with airbag balls (6), the top and bottom of the connecting sleeve block (24) are rotatably connected to one end of the support frame (15), the inner walls of the support frames (15) on both sides are connected to drug delivery tubes (26), and the drug delivery tubes (26) are provided with drug application holes (9).

2. The high-stability double-tube balloon stent for preventing and treating intrauterine adhesions according to claim 1, characterized in that: A connecting frame (13) is connected to one side of the connecting ring (22), the connecting frame (13) is inserted into the interior of the sleeve (1), the connecting frame (13) is sleeved on the outside of the rotating rod (21), and a second airbag strip (4) is inserted into the connecting frame (13).

3. The high-stability double-tube balloon stent for preventing and treating intrauterine adhesions according to claim 1, characterized in that: A side of the connecting ring (22) away from the rotating rod (21) is connected to an insertion rod (7), a side of the first airbag strip (3) is connected to a connecting block (5), and the insertion rod (7) is inserted into the interior of the connecting block (5).

4. The high-stability double-tube balloon stent for preventing and treating intrauterine adhesions according to claim 1, characterized in that: One end of the transmission block (23) is inserted into the inner cavity of the connecting sleeve block (24), the inner cavity of the connecting sleeve block (24) is connected to a contraction spring (10), one end of the contraction spring (10) is connected to one side of the transmission block (23), and limiting protrusions are provided on both sides of one end of the transmission block (23).

5. The high-stability double-tube balloon stent for preventing and treating intrauterine adhesions according to claim 4, characterized in that: A tension spring (14) is connected inside the sleeve (1), and one end of the tension spring (14) is connected to one end of the connection frame (13).

6. The high-stability double-tube balloon stent for preventing and treating intrauterine adhesions according to claim 1, characterized in that: A first drug delivery tube (11) and a second drug delivery tube (12) are respectively arranged on both sides of the sleeve (1), and the discharge ends of the first drug delivery tube (11) and the second drug delivery tube (12) are both connected to the feed end of the drug delivery tube (26).

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