Cervical stent structure

Abstract

This utility model relates to the field of medical device technology and discloses a cervical stent structure for use with a Gynee IUD, which is installed in the uterine cavity. The cervical stent structure includes a connecting rod and an elastic support assembly: the first end of the connecting rod along its length is used for fixed connection to the Gynee IUD; the elastic support assembly is disposed on the outer circumferential surface of the connecting rod and is used for insertion into the cervical canal for support. The elastic support assembly has a first state of compression and radial contraction, and a second state of expansion and unfolding. The size of the elastic support assembly in the first state is smaller than the size of the cervical canal, and the size of the elastic support assembly in the second state is larger than the size of the cervical canal. This utility model can effectively prevent the cervical canal walls from approaching each other radially along the connecting rod and recurring adhesions.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a cervical stent structure. Background Technology

[0002] Clinically, some female patients who have undergone intrauterine procedures (such as abortion, curettage, etc.) are prone to cervical canal adhesions due to damage to the cervical canal mucosa during the procedure. This prevents blood from draining from the uterine cavity during each menstrual period, causing severe abdominal pain. These patients usually need to be readmitted for cervical canal adhesiolysis, but recurrence of adhesions is possible after the procedure, seriously affecting their quality of life. To reduce recurrence of adhesions, the traditional method is to place an intrauterine device (IUD) (such as the Gynecone IUD) into the uterine cavity, relying on the tail string of the Gynecone IUD penetrating the cervical canal to achieve a separation effect; however, the above method does not provide good support for the cervical canal and is not effective in preventing recurrence of adhesions. Therefore, there is an urgent need for a support structure that can effectively prevent recurrence of cervical canal adhesions. Utility Model Content

[0003] In view of this, the present invention provides a cervical stent structure to solve the problem of the lack of a support structure that can effectively prevent the cervical canal from re-adheding.

[0004] This utility model provides a cervical support structure for connection to a Gynee ring, the Gynee ring being installed inside the uterine cavity; the cervical support structure includes:

[0005] The first end of the connecting rod along its length is used for a fixed connection to the Ginny ring;

[0006] An elastic support component is disposed on the outer peripheral surface of the connecting rod and is used to be inserted into the cervical canal for support. The elastic support component has a first state of being compressed and radially contracted, and a second state of being expanded and unfolded. The size of the elastic support component in the first state is smaller than the size of the cervical canal, and the size of the elastic support component in the second state is larger than the size of the cervical canal.

[0007] The cervical stent structure according to this utility model has at least the following beneficial effects:

[0008] By replacing the tail string of the GyneIUD with a connecting rod, and providing an elastic support component on the outer circumference of the connecting rod, the elastic support component is switched to the first state and inserted into the cervical canal during the placement of the GyneIUD into the uterine cavity. After the GyneIUD is installed in the uterine cavity, the elastic support component automatically and gradually switches from the first state to the second state under its own elastic recovery force, and abuts against the cervical canal wall, applying a radial outward support force to the cervical canal wall along the connecting rod. This effectively prevents the cervical canal walls from getting closer to each other and re-adhesing along the radial direction of the connecting rod.

[0009] In one optional embodiment, the elastic support assembly includes a plurality of elastic support members, which are arranged at equal intervals circumferentially around the axis of the connecting rod and at equal intervals along the length direction of the connecting rod; the elastic support members extend gradually away from the first end along the length direction of the connecting rod, and the elastic support members are inclined away from the center of the connecting rod.

[0010] In one optional embodiment, the elastic support includes a first part and a second part, one end of the second part is connected to the connecting rod, and the other end of the second part is provided with the first part, wherein the hardness of the second part is greater than that of the first part.

[0011] In one alternative implementation, both the first and second parts are made of an elastically compressible biocompatible material.

[0012] In one alternative implementation, a drive component is further included, which is connected to the elastic support member and is used to drive the elastic support member to switch from a second state to a first state.

[0013] In one optional embodiment, a through groove is provided in the end face of the connecting rod that is relatively away from the first end, and a through hole is provided on the side wall of the connecting rod corresponding to the position of the elastic support member. The through hole is radially through the connecting rod and communicates with the through groove. The driving assembly includes a traction line movably disposed in the through groove and a plurality of pull lines corresponding to the elastic support members. One end of each pull line is connected to the traction line, and the other end passes through the through hole and is connected to the end of the corresponding elastic support member that is relatively away from the connecting rod.

[0014] In one optional embodiment, when the elastic support assembly is in the first state, the traction line is located in the through groove; the bottom of the traction line, which is relatively far from the first end, is provided with a loop; the drive assembly further includes a pull rod for being movably inserted into the through groove; the pull rod, which is relatively close to the end of the traction line, is provided with a hook, which matches the loop.

[0015] In one alternative embodiment, the perforation extends radially from the inside to the outside along the connecting rod, and the perforation is gradually inclined towards the first end.

[0016] In one alternative embodiment, the connecting rod is made of a biocompatible material. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a cervical stent structure inserted into the cervical canal according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of a cervical stent structure according to an embodiment of the present utility model;

[0020] Figure 3 This is a cross-sectional view of a cervical stent structure according to an embodiment of the present utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is a schematic diagram of the elastic support member in a cervical stent structure according to an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100-Ginny Ring;

[0025] 210 - Uterine cavity, 220 - Uterine body, 230 - Cervix, 240 - Cervical canal, 250 - Vagina;

[0026] 300 - connecting rod, 310 - through groove, 320 - through hole;

[0027] 410 - Elastic support component, 411 - First part, 412 - Second part;

[0028] 510-Traction line, 511-Ring part, 520-Pull line, 530-Pull rod, 531-Hook part. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this embodiment. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this embodiment, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment according to the specific circumstances.

[0032] The following is combined with Figures 1 to 5 The following describes embodiments of the present invention.

[0033] A cervical support structure according to an embodiment of the present invention is applied and connected to a Ginny Ring 100, which is installed in the uterine cavity 210. The cervical support structure includes a connecting rod 300 and an elastic support assembly: the first end of the connecting rod 300 along its length is used to fix it to the Ginny Ring 100; the elastic support assembly is disposed on the outer peripheral surface of the connecting rod 300 and is used to be inserted into the cervical canal 240 for support. The elastic support assembly has a first state of compression and radial contraction, and a second state of expansion and unfolding. The size of the elastic support assembly in the first state is smaller than the size of the cervical canal 240, and the size of the elastic support assembly in the second state is larger than the size of the cervical canal 240.

[0034] In this embodiment, the cervical support structure replaces the tail wire of the Gyne Ring 100 with a connecting rod 300, and an elastic support component is provided on the outer peripheral surface of the connecting rod 300. During the process of placing the Gyne Ring 100 into the uterine cavity 210, the elastic support component is switched to a first state and placed into the cervical canal 240. After the Gyne Ring 100 is installed in the uterine cavity 210, the elastic support component automatically switches from the first state to the second state under its own elastic recovery force, and abuts against the wall of the cervical canal 240, and applies a radial outward support force along the connecting rod 300 to the wall of the cervical canal 240, thereby effectively preventing the walls of the cervical canal 240 from getting closer to each other and re-adhesion along the radial direction of the connecting rod 300.

[0035] It is understood that the length direction of the connecting rod 300 mentioned in the text refers to the axial direction of the connecting rod 300. For ease of description, this embodiment uses... Figure 2 The axial direction shown is used to describe the length direction of the connecting rod 300, but should not be construed as a specific limitation on the length direction of the connecting rod 300.

[0036] like Figure 2 and Figure 3 As shown, in some embodiments, the elastic support assembly includes a plurality of elastic support members 410, which are arranged at equal intervals around the axis of the connecting rod 300 in the circumferential direction and at equal intervals along the length direction of the connecting rod 300; the elastic support members 410 extend gradually away from the first end along the length direction of the connecting rod 300, and the elastic support members 410 are inclined away from the center of the connecting rod 300. By arranging multiple elastic support members 410 at equal intervals circumferentially and adjacent elastic support members 410 at equal intervals axially, after the elastic support assembly is placed into the cervical canal 240 and the external force causing the elastic support assembly to retract radially is removed, each elastic support member 410, under the action of its own elastic restoring force, abuts against different positions along the circumference and axial direction of the cervical canal 240 wall. This better applies radial outward support force along the connecting rod 300 to different positions of the cervical canal 240 wall simultaneously, which helps reduce the phenomenon of recurrent adhesions of the cervical canal 240 wall approaching each other along the connecting rod 300. Furthermore, by tilting the elastic support members 410 so that their tilted surfaces abut against the cervical canal 240 wall to provide support, the risk of damage to the cervical canal 240 wall is reduced.

[0037] It should be noted that because multiple elastic support members 410 are spaced apart circumferentially, there is a gap between two adjacent elastic support members 410 circumferentially, so that blood in the uterine cavity 210 can be discharged during each menstrual period to avoid causing severe abdominal pain.

[0038] like Figure 3 and Figure 5As shown, specifically, the elastic support 410 includes a first part 411 and a second part 412. One end of the second part 412 is connected to the connecting rod 300, and the other end of the second part 412 is provided with the first part 411. The hardness of the second part 412 is greater than that of the first part 411. Considering that a person's weight fluctuates at different times, the force driving the walls of the cervical canal 240 to move closer together radially along the connecting rod 300 also varies. In this embodiment, the hardness of the second part 412 is set to be greater than that of the first part 411, making the second part 412 less prone to elastic deformation compared to the first part 411. When a person's weight changes, causing the force driving the walls of the cervical canal 240 to move closer together radially along the connecting rod 300 to increase, the second part 412 can also deform and generate a greater elastic recovery force. Together with the first part 411, it applies greater support force to different positions of the cervical canal 240 wall simultaneously. This allows for flexible application of support force according to the patient's weight changes at different times, effectively reducing the phenomenon of recurrent adhesions of the cervical canal 240 wall moving closer together radially along the connecting rod 300 for patients at different weight stages.

[0039] Specifically, the first part 411 and the second part 412 are both made of elastic compressible biocompatible materials, such as PCU and silicone resin. The first part 411 and the second part 412, made of biocompatible materials such as PCU and silicone resin, are less likely to cause rejection after being inserted into the cervical canal 240.

[0040] In some embodiments, the cervical support structure further includes a driving assembly connected to the elastic support member 410 and used to switch the elastic support member from a second state to a first state. The driving assembly enables each elastic support member 410 to retract radially toward the connecting rod 300, thereby switching the elastic support member from the second state to the first state and maintaining it in the first state; thus facilitating the insertion of the elastic support member into the cervical canal 240 during the placement of the GyneIUD 100 into the uterine cavity 210.

[0041] like Figures 2 to 4As shown, specifically, the connecting rod 300 has a through groove 310 in the end face away from the first end, and the side wall of the connecting rod 300 has a through hole 320 corresponding to the position of the elastic support 410. The through hole 320 is radially through the connecting rod 300 and communicates with the through groove 310. The driving assembly includes a traction line 510 movably disposed in the through groove 310 and a plurality of pull lines 520 corresponding to the elastic support 410. One end of each pull line 520 is connected to the traction line 510, and the other end passes through the through hole 320 and is connected to the end of the corresponding elastic support 410 away from the connecting rod 300. By connecting each elastic support 410 to the traction line 510 with a pull wire 520, when the traction line 510 is pulled downward, all the elastic support 410 can be moved together radially toward the connecting rod 300, switching the elastic support assembly from the second state to the first state, thereby facilitating the insertion of the elastic support assembly into the cervical canal 240.

[0042] like Figure 3 and Figure 4 As shown, specifically, when the elastic support assembly is in the first state, the traction line 510 is located in the through groove 310; the bottom of the traction line 510, which is relatively far from the first end, is provided with a ring portion 511; the drive assembly also includes a pull rod 530 for being movably inserted into the through groove 310; the pull rod 530, which is relatively close to the end of the traction line 510, is provided with a hook portion 531; the hook portion 531 matches the ring portion 511. By concealing the traction line 510 within the through groove 310 to prevent it from being exposed, and by providing a ring 511 at the bottom of the traction line 510, during the process of inserting the elastic support assembly into the cervical canal 240, first insert the end of the pull rod 530 with the hook 531 into the through groove 310 and hook the hook 531 onto the ring 511. Then, by pulling the traction line 510 downward, all the elastic support members 410 can be simultaneously retracted along the radial direction of the connecting rod 300 towards the connecting rod 300, switching the elastic support assembly from the second state to the first state. The operation is simple.

[0043] like Figure 4 As shown, specifically, the perforation 320 extends radially from the inside to the outside along the connecting rod 300, and the perforation 320 is gradually inclined closer to the first end. By tilting the perforation 320, the friction between the pull line 520 and the sidewall of the perforation 320 is reduced during the downward pulling of the traction line 510.

[0044] In some embodiments, the connecting rod 300 is made of a relatively rigid and incompressible biocompatible material, such as MP35N alloy, which is less likely to cause rejection after being inserted into the cervical canal 240.

[0045] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the present invention.

Claims

1. A cervical support structure, applied to a Ginny ring (100), the Ginny ring (100) being installed within a uterine cavity (210); characterized in that, The cervical stent structure includes: The first end of the connecting rod (300) along its length is used for fixed connection to the Ginny ring (100); An elastic support component is disposed on the outer peripheral surface of the connecting rod (300) and is used to be inserted into the cervical canal (240) for support. The elastic support component has a first state of being compressed and radially contracted, and a second state of being expanded and unfolded. The size of the elastic support component in the first state is smaller than the size of the cervical canal (240), and the size of the elastic support component in the second state is larger than the size of the cervical canal (240).

2. The cervical stent structure according to claim 1, characterized in that, The elastic support assembly includes a plurality of elastic support members (410), which are arranged at equal intervals around the axis of the connecting rod (300) in the circumferential direction and at equal intervals along the length direction of the connecting rod (300). The elastic support members (410) gradually extend away from the first end along the length direction of the connecting rod (300), and the elastic support members (410) are inclined away from the center of the connecting rod (300).

3. The cervical stent structure according to claim 2, characterized in that, The elastic support (410) includes a first part (411) and a second part (412). One end of the second part (412) is connected to the connecting rod (300), and the other end of the second part (412) is provided with the first part (411). The hardness of the second part (412) is greater than that of the first part (411).

4. A cervical stent structure according to claim 3, characterized in that, The first part (411) and the second part (412) are both made of elastic compressible biocompatible material.

5. A cervical stent structure according to any one of claims 2 to 4, characterized in that, It also includes a drive component, which is connected to the elastic support (410) and is used to drive the elastic support component to switch from the second state to the first state.

6. A cervical stent structure according to claim 5, characterized in that, The connecting rod (300) has a through groove (310) on its end face away from the first end. The side wall of the connecting rod (300) has a through hole (320) corresponding to the position of the elastic support (410). The through hole (320) is radially through the connecting rod (300) and communicates with the through groove (310). The driving assembly includes a traction line (510) movably disposed in the through groove (310) and a plurality of pull lines (520) corresponding to the elastic support (410). One end of each pull line (520) is connected to the traction line (510), and the other end passes through the through hole (320) and is connected to the end of the corresponding elastic support (410) away from the connecting rod (300).

7. A cervical stent structure according to claim 6, characterized in that, When the elastic support assembly is in the first state, the traction line (510) is located in the through groove (310); the bottom of the traction line (510) which is relatively far from the first end is provided with a ring (511), and the drive assembly also includes a pull rod (530) for being movably inserted into the through groove (310), and the end of the pull rod (530) which is relatively close to the traction line (510) is provided with a hook (531), and the hook (531) matches the ring (511).

8. A cervical stent structure according to claim 6, characterized in that, The perforation (320) extends radially from the inside to the outside along the connecting rod (300), and the perforation (320) is gradually inclined closer to the first end.

9. A cervical stent structure according to claim 1, characterized in that, The connecting rod (300) is made of a biocompatible material.

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