Degradable supporting diaphragm device for preventing and treating intrauterine adhesion

Abstract

The utility model belongs to the technical field of intrauterine adhesion prevention devices, and particularly relates to a degradable supporting diaphragm device for preventing and treating intrauterine adhesion. The technology comprises a degradable diaphragm, the diaphragm is of an inverted pear-shaped structure and is hollow, two supporting rods which are arranged left and right are arranged in the diaphragm, two connecting rods which are arranged left and right are arranged between the two supporting rods, one ends of the two connecting rods are hinged together through a mounting block, and the other ends of the two connecting rods are hinged to the mounting block. The other ends of the two connecting rods are hinged to the ends, corresponding to the connecting rods, of the supporting rods. Fixing blocks are arranged at the bottoms of the supporting rods, and the other ends of the supporting rods are hinged to the fixing blocks; a driving assembly used for driving the connecting rod and the supporting rod to conduct telescopic deformation is arranged in the diaphragm. The problem that in the prior art, a diaphragm is inconvenient to move into the uterus is solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of intrauterine adhesion prevention devices, and in particular relates to a biodegradable support diaphragm device for preventing intrauterine adhesions. Background Technology

[0002] Intrauterine adhesions refer to adhesions between the endometrium and the uterine wall, leading to deformation or closure of the uterine cavity. Intrauterine adhesions can cause symptoms such as menstrual irregularities and abdominal pain. Therefore, it is necessary to separate the adhered tissue to restore the normal shape and function of the uterine cavity. After intrauterine adhesion separation surgery, the wound will have exudation, congestion, and edema. During the healing process, the wound may re-adhere. To prevent re-adhesion, a diaphragm can be placed in the uterus. When the diaphragm covers the uterine cavity wound, it can cover, protect, and promote endometrial regeneration and repair, thereby preventing re-adhesion.

[0003] To ensure the diaphragm is stably positioned within the uterine cavity, a support assembly is needed to stabilize it. Since the uterus has an inverted pear-shaped structure, the support assembly in the current technology is also designed in a pear shape to accommodate the uterine structure. The diaphragm is then laid on the outside of the pear-shaped support assembly. Therefore, by designing the support assembly in this way, the diaphragm can fit more stably within the uterus, ensuring the stability of the diaphragm during use. For example, in the patent with publication number "CN211633753U", component 1, the uterine ring, is the aforementioned support assembly, which can support the diaphragm.

[0004] The pear-shaped design of the support component, as described above, facilitates the stable support of the diaphragm within the uterus. However, the support component needs to be moved into the uterus through the vagina. If the support component is designed according to the structure of the uterus, it will occupy a certain width, making it difficult for the support component to enter the uterus through the vagina. Consequently, the diaphragm on the support component is also not easy to enter the uterus. Utility Model Content

[0005] The purpose of this invention is to provide a biodegradable support diaphragm device for preventing intrauterine adhesions, which facilitates the insertion of the diaphragm into the uterus.

[0006] The aforementioned biodegradable support diaphragm device for preventing intrauterine adhesions includes a biodegradable diaphragm with an inverted pear-shaped structure and a hollow interior. Two support rods arranged horizontally are disposed within the diaphragm, and two connecting rods arranged horizontally are disposed between the two support rods. One end of each connecting rod is hinged together by a mounting block, and the other end of each connecting rod is hinged to one end of its corresponding support rod. A fixing block is disposed at the bottom of each support rod, and the other end of each support rod is hinged to the fixing block. A drive assembly for driving the connecting rods and support rods to extend and retract is disposed within the diaphragm.

[0007] Furthermore, the drive assembly includes an adjusting rod, which is vertically arranged and its upper end is fixed to the mounting block; the mounting block has a through hole that connects the upper and lower parts, and the lower end of the adjusting rod passes through the through hole and is located at the bottom of the mounting block.

[0008] Furthermore, the fixing block is provided with a locking component for locking the adjusting rod thereon. When the adjusting rod is locked, the connecting rod and the support rod are in an extended state.

[0009] Furthermore, the locking component includes a locking block, a groove is provided at the bottom of the fixing block, the groove communicates with the through hole, the locking block is located in the groove, the bottom of the adjusting rod is fixed to the top of the locking block, first locking teeth are fixed on both the left and right sides of the locking block, and a second locking tooth is provided at the groove opening, the first locking tooth and the second locking tooth are wedge-shaped; the first locking tooth is made of elastic material; a pull rod is vertically connected to the bottom of the locking block.

[0010] Furthermore, the pull rod and the locking block are connected by a thread.

[0011] Furthermore, a ring is fixed to the bottom of the card block.

[0012] Furthermore, the support rod has an arc-shaped structure.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention features a retractable design where the connecting rod and support rod are hinged together. This allows for adjustment of the space occupied between the connecting rod and support rod. When the connecting rod and support rod are reduced in size, it is easier to insert the diaphragm through the vagina into the uterus. Once inside the uterus, the connecting rod and support rod can be extended to open the diaphragm and make it fit against the inner wall of the uterus. Therefore, this invention, through the retractable design of the connecting rod and support rod, avoids the problem of inconvenience in moving the diaphragm into the uterus in the prior art. Attached Figure Description

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

[0016] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0017] Figure 3 A schematic diagram of the structure after the adjusting rod moves the connecting rod and the support rod.

[0018] Figure 4 for Figure 1 Front view structural diagram;

[0019] Figure 5 This is a diagram showing the usage state of this utility model;

[0020] The components in the diagram are named as follows: 1. Connecting rod; 2. Support rod; 3. Diaphragm; 4. Pull rod; 5. Locking block; 6. Fixing block; 7. Adjusting rod; 8. Mounting block; 9. First locking tooth; 10. Second locking tooth; 11. Ring body; 12. Uterus. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0022] Example 1

[0023] This embodiment describes a biodegradable support diaphragm device for preventing intrauterine adhesions, such as... Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, it includes a biodegradable diaphragm 3, which has an inverted pear-shaped structure and a hollow interior. The diaphragm 3 in the attached diagram is only a schematic diagram, and its specific structure should be designed according to the internal structure of the uterus 12 so that its sidewalls can fit against the sidewalls of the uterus 12 after the diaphragm 3 is opened, so as to separate the tissues inside the uterus. The diaphragm 3 can be made of a biodegradable membrane, such as polylactic acid or polycaprolactone. Such membranes can be gradually degraded and absorbed in the body. When in use, after the biodegradable diaphragm comes into contact with the uterus, it can form a fibrin film on the surface of the endometrium, preventing cell adhesion and growth, thereby preventing adhesions.

[0024] like Figure 1 and Figure 3As shown, the diaphragm 3 has two support rods 2 arranged horizontally, and two connecting rods 1 arranged horizontally between the two support rods 2. One end of the two connecting rods 1 is hinged together by a mounting block 8, and the other end of each connecting rod 1 is hinged to one end of the corresponding support rod 2. A fixing block 6 is provided at the bottom of the support rod 2, and the other end of each support rod 2 is hinged to the fixing block 6. The bottom of the diaphragm 3 has an opening, which facilitates the installation of various components of this design inside the diaphragm 3. When one end of the two connecting rods 1 is hinged together, the end of the connecting rod 1 on the left side is hinged to the left side wall of the mounting block 8 by a hinge seat or pivot. One end of the connecting rod 1 on the right side is hinged to the right side wall of the mounting block 8 via a hinge seat or pivot; the hinge seat and pivot are existing known technologies, so their specific structures will not be described in detail; when the other ends of the two connecting rods 1 are hinged, the other end of the left connecting rod 1 is hinged to one end of the left support rod 2 via a hinge seat or pivot, and the other end of the right connecting rod 1 is hinged to one end of the right support rod 2 via a hinge seat or pivot; the other ends of the support rods 2 are all hinged to the fixing block 6 via hinge seats or pivots; after the hinge between the connecting rod 1 and the support rod 2 is completed, the connecting rod 1 can swing up and down, and the support rod 2 can swing left and right; according to Figure 3 In the orientation of the device, when the mounting block 8 moves downward, it can drive the two connecting rods 1 to move. The connecting rods 1 can then drive the support rod 2 to move, thereby reducing the area occupied by the connecting rods 1 and support rod 2. This makes it easier to operate the connecting rods 1 and support rod 2 from the vagina into the uterus 12. Because the diaphragm 3 is located on the outside of the connecting rods 1 and support rod 2, it can be brought into the uterus 12. Therefore, through the hinge design, the width between the connecting rods 1 and support rod 2 can be adjusted, thereby reducing the space occupied by the connecting rods 1 and support rod 2, making it easier to send the diaphragm 3 into the uterus 12. Then, by driving the mounting block 8 upward, the mounting block 8 moves upward, which drives the connecting rods 1 to move. The connecting rods 1 and support rod 2 move, and after they move, they can extend into a triangular structure, from... Figure 1 As can be seen from the orientation, when the connecting rod 1 and the support rod 2 extend into a triangular structure, the outer diaphragm 3 can be opened, thereby achieving the purpose of supporting the diaphragm 3, allowing the diaphragm 3 to be positioned in an open form within the uterus 12, and enabling the diaphragm 3 to be stably attached to the uterine wall; during use, the connecting rod 1 and the support rod 2 are retracted to... Figure 3 The structure facilitates the insertion of connecting rod 1 and support rod 2 into the uterus 12 via the vagina, while simultaneously driving diaphragm 3 into the uterus 12; subsequently, by extending connecting rod 1 and support rod 2... Figure 1The structure allows the connecting rod 1 and the support rod 2 to extend the diaphragm 3 and support it so that it adheres tightly to the wall of the uterus 12. During this use, the telescopic design of the connecting rod 1 and the support rod 2 reduces the space occupied by the diaphragm 3, making it easier to pass through the vagina and thus easier to bring the diaphragm 3 into the uterus 12 through the vagina.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, an adjusting rod 7 is installed inside the diaphragm 3. The adjusting rod 7 is vertically positioned, and its upper end is fixed to the mounting block 8. A through hole is provided on the fixing block 6, and the lower end of the adjusting rod 7 passes through the through hole and is located at the bottom of the fixing block 6. This section of the design constitutes a driving assembly for driving the connecting rod 1 and the support rod 2 to extend and retract. Because the upper end of the adjusting rod 7 is fixed to the mounting block 8, and the lower end of the adjusting rod 7 is located at the bottom of the fixing block 6, in use, by operating the adjusting rod 7 at the bottom of the fixing block 6, the adjusting rod 7 can be moved, and the adjusting rod 7 can move the mounting block 8. When the adjusting rod 7 drives the mounting block 8 to move upward, the connecting rod 1 and the support rod 2 can be spread apart. When the adjusting rod 7 drives the mounting block 8 to move downward, the connecting rod 1 and the support rod 2 can be retracted together. Therefore, the design of the adjusting rod 7 facilitates the extension and retraction of the connecting rod 1 and the support rod 2.

[0026] In practice, the adjusting rod 7 in the drive assembly can also be a plate-like structure;

[0027] like Figure 1 As shown, the support rod 2 has an arc-shaped structure. Because the inner wall of the uterus 12 has a certain arc shape, the arc of the support rod 2 is designed according to the structure of the inner wall of the uterus 12, so that the support rod 2 fits as closely as possible to the inner wall of the uterus 12. Therefore, through the design of the arc-shaped structure, the diaphragm 3 on the outside of the support rod 2 fits more closely to the inner wall of the uterus 12, thereby improving the purpose of preventing adhesion.

[0028] In practical use: First, retract connecting rod 1 and support rod 2 to... Figure 3The structure is as follows: the diaphragm 3 is then placed over the outside of the connecting rod 1 and the support rod 2. The connecting rod 1 and the support rod 2 are then inserted into the uterus 12 from the vagina, thereby driving the diaphragm 3 into the uterus 12. Then, the adjusting rod 7 is operated to move the mounting block 8 upward, so that the mounting block 8 can drive the connecting rod 1 and the support rod 2 to open up. The connecting rod 1 and the support rod 2 can then open up the diaphragm 3, so that the diaphragm 3 can adhere to the side wall of the uterus 12. Thus, the diaphragm 3 can subsequently prevent the recurrence of tissue adhesion within the uterus 12. The entire process can be performed under ultrasound guidance. In this process, the telescopic design of the connecting rod 1 and the support rod 2 makes it easy to drive the diaphragm 3 into the uterus 12, avoiding the problem of the diaphragm 3 not being easy to bring into the uterus 12 in the existing technology.

[0029] Example 2

[0030] This embodiment further illustrates the technology, such as Figure 1 , Figure 2 and Figure 3As shown, a locking block 5 is provided on the fixing block 6. A groove is provided at the bottom of the fixing block 6, which communicates with the through hole. The locking block 5 is located in the groove. The bottom of the adjusting rod 7 is fixed to the top of the locking block 5. First locking teeth 9 are fixed on both the left and right sides of the locking block 5. A second locking tooth 10 is provided at the opening of the groove. The first locking tooth 9 and the second locking tooth 10 are wedge-shaped. The first locking tooth 9 is made of elastic material. A pull rod 4 is vertically connected to the bottom of the locking block 5. This section of the solution constitutes a locking assembly for locking the adjusting rod 7. When the adjusting rod 7 is locked, the connecting rod 1 and the support rod 2 are extended. The first locking tooth 9 can be made of plastic material. Because the bottom of the adjusting rod 7 is fixed on the locking block 5, the adjusting rod 7 can be moved when the locking block 5 moves. Specifically, when the wedge-shaped fit is implemented, the wedge-shaped fit is a sliding fit composed of two sliders with inclined surfaces. The inclined surfaces of the two wedge blocks are in contact. One slider moves along the X-axis, and the other slider moves along the Y-axis. When the axis moves and the two inclined planes slide relative to each other, a straight sliding motion along the inclined plane is formed. Therefore, the first locking tooth 9 is equivalent to one of the inclined planes, and the second locking tooth 10 is equivalent to the other inclined plane. When the first locking tooth 9 and the second locking tooth 10 are in contact, their contact surfaces are both inclined planes. Therefore, the longitudinal sections of the first locking tooth 9 and the second locking tooth 10 can both have a sawtooth structure. In use, if it is necessary to remove the locking block 5 from the groove, since the pull rod 4 is fixed on the locking block 5, pulling the pull rod 4 downward can drive the locking block 5 to move downward. During the downward movement of the locking block 5, the first locking tooth 9 on it will contact the second locking tooth 10. Because the first locking tooth 9 has a certain elasticity, when the first locking tooth 9 contacts the second locking tooth 10 in an inclined plane manner, by squeezing the first locking tooth 9 with force, the first locking tooth 9 can be squeezed and deformed by its elasticity. Thus, the first locking tooth 9 can be moved out of the groove from the position of the second locking tooth 10. At this time, the locking block 5 can be moved out of the groove.If it is necessary to lock the locking block 5 in the groove, the lever 4 is moved upwards. The lever 4 will then move the locking block 5 upwards. During the upward movement of the locking block 5, the first locking tooth 9 will contact the bottom of the second locking tooth 10. During the contact process, the contact surfaces of the first locking tooth 9 and the second locking tooth 10 are both inclined surfaces that can fit together. Because the first locking tooth 9 is elastic, it can be squeezed and deformed as it continues to move upwards. Thus, the first locking tooth 9 can pass through the position of the second locking tooth 10 and enter the groove. Without the action of external force, the first locking tooth 9 can be stably locked in the groove, thereby moving the locking block. 5 is limited within the groove. During use, because the locking block 5 moves upward into the groove, the locking block 5 will drive the adjusting rod 7 to move upward. The upward movement of the adjusting rod 7 will drive the mounting block 8 to move upward. The upward movement of the mounting block 8 can open up the connecting rod 1 and the support rod 2. Thus, when the connecting rod 1 and the support rod 2 are opened up, the locking block 5 is locked in the groove by the cooperation of the first locking tooth 9 and the second locking tooth 10. This design can lock the position of the adjusting rod 7, thereby preventing the mounting block 8 from moving up and down. Therefore, the opened connecting rod 1 and the support rod 2 can be locked, so that the connecting rod 1 and the support rod 2 can stably support the diaphragm 3.

[0031] In implementation, the first locking tooth 9 in the locking assembly can be in the form of a ring structure, and the locking block 5 is in the form of a circular structure; therefore, the first locking tooth 9 is not limited to the left and right sides of the locking block 5 as mentioned above, and can be directly fitted onto the outer side wall of the locking block 5. Therefore, the first locking tooth 9 is provided around the outer side of the locking block 5. In use, the first locking tooth 9 is made to be locked in the groove by the second locking tooth 10 as stably as possible.

[0032] like Figure 1 and Figure 2 As shown, the pull rod 4 and the locking block 5 are connected by threads. The bottom of the locking block 5 has a threaded blind hole, and the top of the pull rod 4 has an external thread. By screwing the external thread into the threaded blind hole, the threaded engagement between the pull rod 4 and the locking block 5 can be achieved. In use, when the pull rod 4 pushes the locking block 5 to move, so that the first locking tooth 9 on the locking block 5 passes through the second locking tooth 10 and enters the groove, it is necessary to remove the pull rod 4 from the vagina. At this time, due to the threaded design, the pull rod 4 can be easily removed from the locking block 5 by rotating it, allowing it to be removed from the vagina. The remaining components are located inside the uterus 12 and support the diaphragm 3. When the diaphragm 3 comes into contact with the inner wall of the uterus 12, it will turn into a gel within 24-48 hours and act as a barrier on the side wall of the uterus 12. Five to seven days after the operation, the diaphragm 3 will decompose into carbon dioxide and water. Therefore, the components placed inside the uterus 12 in this design need to be removed after 5-7 days. When removing them, the locking block 5 is removed from the groove, and then the adjusting rod 7 is moved downward, so that the connecting rod 1 and the supporting rod 2 are retracted together and then removed from the vagina.

[0033] like Figure 1 and Figure 2 As shown, a ring 11 is fixed to the bottom of the card block 5. Since the card block 5 needs to be removed from the groove, it is convenient to use surgical instruments, such as clamps, to clamp inside the ring 11, so as to pull the ring 11 to move, which in turn makes it easier to move the card block 5. During the process of pulling the card block 5, it is easy to pull it out of the groove, thus making it easy to remove the card block 5 from the groove.

Claims

1. A degradable supporting membrane device for preventing intrauterine adhesion, comprising a degradable membrane (3), the membrane (3) is in an inverted pear shape structure and hollow inside, characterized in that: The diaphragm (3) is provided with two support rods (2) arranged in left and right directions, two connecting rods (1) arranged in left and right directions are arranged between the two support rods (2), one end of the two connecting rods (1) is hinged together through a mounting block (8), the other end of the two connecting rods (1) is hinged to one end of the corresponding support rod (2); the bottom of the support rod (2) is provided with a fixed block (6), and the other end of the support rod (2) is hinged to the fixed block (6); the diaphragm (3) is provided with a driving assembly for driving the connecting rod (1) and the support rod (2) to stretch and deform.

2. The degradable support membrane device for the prevention of intrauterine adhesions according to claim 1, characterized in that: The driving assembly comprises an adjusting rod (7), the adjusting rod (7) is vertically arranged, and the upper end of the adjusting rod (7) is fixed on the mounting block (8); the fixed block (6) is provided with a through hole communicating upward and downward, and the lower end of the adjusting rod (7) penetrates out of the through hole and is located at the bottom of the fixed block (6).

3. The degradable support membrane device for the prevention of intrauterine adhesions according to claim 2, wherein: The fixed block (6) is provided with a locking assembly for locking the adjusting rod (7) thereon, and in the locked state of the adjusting rod (7), the connecting rod (1) and the support rod (2) are in an extended state.

4. The degradable support membrane device for the prevention of intrauterine adhesions according to claim 3, characterized in that: The locking assembly comprises a clamping block (5), the bottom of the fixed block (6) is provided with a groove, the groove is communicated with the through hole, the clamping block (5) is located in the groove, the bottom of the adjusting rod (7) is fixed on the top of the clamping block (5), the left and right sides of the clamping block (5) are both fixed with first clamping teeth (9), the groove is provided with second clamping teeth (10) at the notch, and the first clamping teeth (9) and the second clamping teeth (10) are wedge-shaped matched; the first clamping teeth (9) are made of elastic material; the bottom of the clamping block (5) is vertically connected with a pull rod (4).

5. The degradable support membrane device for the prevention of intrauterine adhesions according to claim 4, characterized in that: The pull rod (4) and the clamping block (5) are in threaded connection.

6. The degradable support membrane device for the prevention of intrauterine adhesions according to claim 4, wherein: The bottom of the clamping block (5) is fixed with a ring body (11).

7. The degradable support membrane device for the prevention of intrauterine adhesions according to claim 1, wherein: The support rod (2) is in an arc structure.

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