Implantable device for vaginal tightening and implantable kit

Abstract

The present disclosure provides an implantable device for vaginal tightening and an implantable kit. Wherein the implantable device comprises a fixation bracket (20) having a recess (21), and a cystic member (30) having a collapsible cavity (32), and the cystic member (30) is sealingly coupled to the fixation bracket (20) such that the cavity (32) of the cystic member (30) cooperates with the recess (21) of the fixation bracket (20) to form a filling cavity (60), wherein the filling cavity (60) expands to squeeze the vaginal wall in the case of injecting a flowable substance into the filling cavity (60).

Description

Technical Field

[0001] This disclosure relates to the field of female pelvic floor cosmetic surgery, and more specifically, to an implantable device and implantable kit for vaginal tightening. Background Technology

[0002] Vaginal laxity syndrome (VLS) may be an early or mild clinical manifestation of pelvic floor dysfunction, and it has only recently been recognized by the academic community as a sexual dysfunction syndrome related to pelvic organ prolapse. Although the causal relationship between VLS and childbirth is not yet clear, experts generally believe that some vaginal deliveries lead to pelvic floor damage, especially damage to the levator ani muscle. Studies have shown that both vaginal delivery and levator ani muscle damage are associated with an increase in the diameter of the levator ani hiatus. Therefore, vaginal laxity is likely a clinical manifestation caused by excessive expansion or damage to the levator ani muscle, which in turn seriously affects women's sexual function and intimate relationships.

[0003] Current mainstream cosmetic medical technologies are divided into minimally invasive treatments and traditional surgical treatments. Minimally invasive treatments can be further divided into laser treatments and temperature-controlled radiofrequency ablation. Laser treatment works by using laser energy to stimulate collagen proliferation and remodeling in the vaginal mucosa, thus tightening the vagina. However, studies show that most women who undergo laser treatment experience immediate symptoms such as itching, burning, and redness after treatment, and may also experience other adverse reactions such as vaginal discharge, urinary tract infections, difficulty urinating, yeast infections, and pelvic pain. Temperature-controlled radiofrequency ablation uses radiofrequency energy to heat vaginal tissue, promoting collagen contraction and regeneration to achieve vaginal tightening. However, due to insufficient patient data and reliable experimental data, its long-term safety cannot be guaranteed. Traditional surgical treatments, due to their invasiveness, have potential adverse effects such as infection, bleeding, and postoperative scarring. Furthermore, the cost of surgery and postoperative recovery also pose significant challenges to the development of surgical treatments.

[0004] Given the numerous limitations of existing treatment techniques in terms of efficacy and safety, there is an urgent need in this field for improved pelvic floor aesthetic techniques to better meet patients' needs and improve their quality of life. Utility Model Content

[0005] This disclosure is provided to introduce, in a simplified form, some concepts that will be further described in the following detailed description. This disclosure is not intended to identify key or essential features of the claimed subject matter, nor is it intended to help determine the scope of the claimed subject matter.

[0006] To address the problems existing in the prior art, this disclosure provides an implantable device and kit for vaginal tightening. By installing the device and kit of this disclosure on the female pelvic floor, the female pelvic floor can be properly fixed and compressed, thereby improving vaginal laxity caused by childbirth and other reasons, thus improving the quality of life and achieving the purpose of medical aesthetics in a scientific, safe and efficient way.

[0007] According to a first aspect of this disclosure, an implantable device for vaginal tightening is provided, the implantable device comprising: a fixation bracket having a groove; and a cystic member having a retractable cavity, the cystic member being hermetically coupled to the fixation bracket such that the cavity of the cystic member engages with the groove of the fixation bracket to form a filling cavity, wherein, upon injection of a fluid substance into the filling cavity, the filling cavity expands to compress the vaginal wall.

[0008] According to one embodiment of this disclosure, the flowing substance includes liquid and gas.

[0009] According to another embodiment of this disclosure, the cystic member is made of a material with an elastic modulus that is self-adaptive so that it can automatically adjust its shape when subjected to pressure.

[0010] According to further embodiments of this disclosure, the material of the cystic member includes silicone and / or silicone.

[0011] According to a further embodiment of this disclosure, the expansion displacement of the cystic member is adjusted by controlling the amount of fluid injected into the filling cavity.

[0012] According to another embodiment of this disclosure, the cystic member connects two symmetrical drum surfaces through a positioning arc surface to form a cavity, and the cystic member is detachably coupled to a fixed bracket through a mating surface opposite to the positioning arc surface.

[0013] According to another embodiment of this disclosure, the implantable device further includes a filling through-hole disposed on a fixation bracket or cystic member to inject a fluid material into a filling cavity through the filling through-hole, and to seal the filling through-hole by a plug corresponding to the filling through-hole after the injection of the fluid material is completed.

[0014] According to a further embodiment of this disclosure, the fixation bracket is further provided with fixation holes to cooperate with bone screws to fix the implantable device to the pelvis.

[0015] According to a further embodiment of this disclosure, a filling through-hole is disposed at the pubic end of the fixation bracket near the pelvis.

[0016] According to a second aspect of this disclosure, an implantable kit for vaginal tightening is provided, the implantable kit comprising two implantable devices according to this disclosure for respectively securing to both sides of the pelvis.

[0017] These and other features and advantages will become apparent from the following detailed description and with reference to the accompanying drawings. It should be understood that the foregoing general description and the following detailed description are illustrative only and do not limit the scope of the claims. Attached Figure Description

[0018] To gain a more detailed understanding of the manner in which the features of this disclosure are described above, reference can be made to the various embodiments for a more specific description of the above-briefly summarized aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and should not be considered as limiting its scope, as this description may allow for other equivalent and effective aspects.

[0019] Figure 1 This is a schematic diagram of an implantable kit for vaginal tightening according to an embodiment of the present disclosure.

[0020] Figure 2 This is a schematic diagram of components of an implantable device for vaginal tightening according to an embodiment of the present disclosure.

[0021] Figure 3a This is a perspective view of a fixation bracket in an implantable device for vaginal tightening according to an embodiment of the present disclosure.

[0022] Figure 3b This is a side view of a fixation bracket in an implantable device for vaginal tightening according to an embodiment of the present disclosure.

[0023] Figure 4a This is an external view of a cystic component in an implantable device for vaginal tightening according to an embodiment of the present disclosure.

[0024] Figure 4b This is an internal view of a cystic component in an implantable device for vaginal tightening according to an embodiment of the present disclosure.

[0025] Figure 5 This is a schematic diagram of a bone screw in an implantable device for vaginal tightening according to an embodiment of the present disclosure. Detailed Implementation

[0026] The present disclosure is described in detail below with reference to the accompanying drawings, and its features will become further apparent from the following detailed description. In this detailed description, numerous specific details are set forth to provide a thorough understanding of the exemplary embodiments described. However, it will be apparent to those skilled in the art that the described embodiments may be practiced without some or all of these specific details. In other exemplary embodiments, well-known structures or processing steps have not been described in detail to avoid unnecessarily obscuring the concepts of the present disclosure.

[0027] In this specification, unless otherwise stated, the term "A or B" as used herein means "A and B" and "A or B", and does not mean that A and B are excluded.

[0028] Figure 1 A schematic diagram of an implantable kit for vaginal tightening according to an embodiment of the present disclosure is shown. The implantable kit may include a pair of implantable devices for respectively securing to both sides of a patient's pelvis.

[0029] like Figure 1 As shown, in the pelvic floor system 40, the pelvis 180 is a ring-shaped structure composed of multiple bones, including the pubis 41, ischium 42, and sacrum 47, etc. Its main function is to support the weight of the human body and provide protection and support for many important internal organs. The size and shape of the pelvis 180 have a significant impact on the function of the female reproductive system. For example, during childbirth, the size and shape of the pelvis 180 can affect the passage of the fetus.

[0030] The pelvic cavity is a space located inside the pelvis, containing many important organs and tissues, such as the urethra43, vagina44, and rectum45. These organs are connected to the pelvic wall by structures such as ligaments, fascia, and muscles, forming a complex support system to maintain their normal position and function within the body. Among them, the vagina44 is one of the important structures in the pelvic cavity, running through the pelvic cavity in the anteroposterior direction, connecting the cervix and the vulva.

[0031] Vaginal laxity refers to the loss of elasticity in the muscles and connective tissue of the vaginal wall, leading to an increase in vaginal diameter or a decrease in contractile force. It is often caused by the expansion of local mucous membranes, fascia, and muscle tissue as the fetus passes through the birth canal, resulting in relaxation of the vaginal wall, levator ani muscle, and related structures of the urogenital diaphragm. Vaginal laxity can cause numerous problems. In terms of sexual life, it reduces friction and stimulation during intercourse, decreasing sexual pleasure and potentially affecting marital relationships. For the urinary system, vaginal laxity can lead to stress urinary incontinence, such as involuntary leakage of urine when abdominal pressure increases, like during coughing or sneezing, because vaginal laxity weakens the supporting structures of the urethra. In terms of the reproductive system, vaginal laxity prevents the vaginal walls from closing tightly, making them more susceptible to bacterial infections and gynecological diseases such as vaginitis, and may also cause pelvic organ prolapse.

[0032] For such patients, this disclosure proposes an implantable device for vaginal tightening, which is fixed to the pelvis 180. Specifically, a first implantable device 110 is fixed to the left side of the pelvis 180, and a second implantable device 120 is fixed to the left side of the pelvis 180.

[0033] Thus, the first implantable device 110 and the second implantable device 120 can fix the vagina 44 respectively, and the combination of the two can reduce the inferior angle of the pubic symphysis 150 to further compress the vagina 44.

[0034] The width and shape of the inferior pubic angle affect the attachment and contractility of the pelvic floor muscles, thus influencing vaginal tightness. Normally, the inferior pubic angle in men is approximately 60°-70°, and in women, it is approximately 70°-85°. During childbirth, hormonal changes and the passage of the fetus through the birth canal exert pressure and damage on the pelvic floor muscles and ligaments, leading to pelvic floor muscle relaxation and consequently vaginal laxity. Furthermore, with age, hormonal changes, particularly a decrease in estrogen secretion, also reduce the elasticity of ligaments and pelvic floor muscles around the inferior pubic angle, further affecting vaginal tightness. This design uses an implantable device to narrow the inferior pubic angle, thereby better tightening the vagina.

[0035] The implantable device disclosed herein can be Figure 1 Any implantable device from the implantable kit shown. (The following is combined...) Figures 2 to 4b Further explanation of implantable devices.

[0036] Figure 2 This is a schematic diagram of components of an implantable device for vaginal tightening according to an embodiment of the present disclosure. Figure 2 As shown, an implantable device for vaginal tightening may include a fixation bracket 20 and a cystic member 30, and the fixation bracket 20 may be sealedly coupled to the cystic member 30 such that a filling cavity 60 is formed inside it.

[0037] Specifically, Figure 3a and Figure 3b These are oblique and side views of a fixation bracket in an implantable device for vaginal tightening according to an embodiment of the present disclosure. Figure 3a As shown, the fixing bracket 20 has a groove 21.

[0038] Figure 4a and Figure 4b These are external and internal views of a cystic member in an implantable device for pelvic floor support according to an embodiment of the present disclosure. Figure 4a As shown, the cystic member 30 has a retractable cavity 32.

[0039] Reference Figure 2 When the cystic member 30 is sealed and coupled to the fixation bracket 20, the cavity 32 of the cystic member 30 can cooperate with the groove 21 of the fixation bracket 20 to form a filling cavity 60. Accordingly, when a fluid is injected into the filling cavity 60, the filling cavity 60 can expand to compress the vaginal wall.

[0040] In one example, the fluid injected into the filling cavity 60 may include highly fluid substances such as liquids and gases. For example, the fluid may include fluids such as silicone.

[0041] In another example, the cystic component 30 can be made of a material with an elastic modulus that is self-adaptive, allowing it to automatically adjust its shape under pressure. For example, compared to the fixation stent 20, the cystic component 30 can be made of a more flexible material with greater elasticity, such as silicone and / or silicone gel. This design uses improved materials, through biomechanical regulation, to achieve both controllable flowability and good load-bearing capacity, thus solving the stress concentration problem that occurs after implantation of traditional implants.

[0042] In another example, the expansion displacement of the cystic member 30 can be adjusted by controlling the amount of fluid injected into the filling cavity 60. This design can provide a suitable expansion displacement for different patients, allowing the cystic member 30 to apply appropriate pressure to the vaginal wall, thereby achieving a better vaginal contraction effect.

[0043] In yet another example, the surface of the cystic member 30 is biocompatible, thereby reducing adverse reactions upon contact with organ tissues. Furthermore, the surface of the cystic member 30 can also be roughened for enhanced containment.

[0044] The following will be referenced Figure 4a and Figure 4b The following describes in detail a cystic member 30 in an implantable device according to an embodiment of the present disclosure. In this embodiment, the cystic member 30 connects two symmetrical drum surfaces 34 via a positioning arc surface 33 to form a cavity 32, and the cystic member 30 is detachably coupled to a fixation bracket 20 via a fitting surface 31 opposite to the positioning arc surface 33.

[0045] I can understand. Figure 4a and Figure 4b The cystic member 30 shown is merely schematic; in reality, the shape of the cystic member 30 can be set according to the actual situation. For example, the cystic member 30 can be formed by combining one or more surfaces, and is not limited to such a form. Figure 4a and Figure 4b The diagram shows three surfaces. Additionally, the cystic component 30 can be designed to be more rounded, avoiding sharp angles between the surfaces. Furthermore, the cystic component 30 can be customized to different shapes according to the patient's requirements; for example, wavy or pleated cystic components 30 can be customized, allowing the vagina to deform with the compression of the implantable device, thereby meeting more of the patient's needs.

[0046] On the other hand, considering that the cystic member 30 is fixed to the fixed bracket 20, the shape of the cystic member 30 must also match the shape of the fixed bracket 20. For example, when the shape of the fixed bracket 20 is a customized streamlined shape, the shape of the cystic member 30 is also set to a corresponding streamlined shape. Corresponding to fixed brackets 20 of different sizes, the cystic member 30 also has multiple matching sizes, so as to better seal with the fixed bracket 20.

[0047] Correspondingly, the shape of the entire implantable device can also be designed according to actual needs, such as being rod-shaped, banana-shaped, etc., with a certain curvature at both ends to fit the bone to be installed.

[0048] In another example, the implantable device may further include a filling through-hole 22 disposed on the fixation bracket 20 or the cystic member 30 to inject a fluid material into the filling cavity 60 through the filling through-hole 22, and to seal the filling through-hole 22 by a corresponding plug after the injection of the fluid material is completed. Specifically, an appropriate amount of fluid material may be filled into the implantable device through the filling through-hole 22 before or after installation.

[0049] In yet another example, the fixation bracket 20 may be further provided with fixation holes to engage with bone screws to fix the implantable device to the pelvis. Figure 3a As shown, the two ends of the fixing bracket 20 can be provided with a first fixing hole 23 and a second fixing hole 24, while the reference return Figure 1 The implantable device can be fixed to the patient's pelvis 180 by engaging bone screws with the first fixation hole 23 and the second fixation hole 24. Alternatively, two implantable devices can be fixed to either side of the pelvis 180, thereby narrowing the inferior pubic angle 150 between them and compressing the vagina 44 between them.

[0050] I can understand. Figure 3a The position of the fixation hole is only illustrative. In practice, two or more fixation holes can be set at appropriate positions on the fixation bracket 20 to fix the implantable device to the pelvis 180, depending on actual needs.

[0051] Figure 5 This is a schematic diagram of a bone screw in an implantable device for vaginal tightening according to an embodiment of the present disclosure.

[0052] The bone screws used in this disclosure may include type HA (cortical bone screw) and type HB (cancellous bone screw). Type HA screws have finer threads and a smaller pitch, typically with a fully threaded design, suitable for gripping cortical bone, providing strong tensile strength and stability. They are often used in areas subjected to high stress and are therefore suitable for areas with thicker cortical bone. Type HB screws have coarser threads and a larger pitch, typically with a partially or sparsely threaded design, suitable for gripping cancellous bone, allowing for better embedding within the cancellous bone and providing good holding force. They are often used in areas with abundant cancellous bone. Furthermore, the material of the bone screws may be, for example, titanium alloy, and the length of the bone screws may range, for example, from 15mm to 50mm.

[0053] In a further non-limiting example, the bone screws used in this disclosure may be one or more of the following: HA 3.5mm bone screws (i.e., bone screw diameter of 3.5mm), HB 3.5mm, or HB 4.0mm bone screws (i.e., their diameters are 3.5mm and 4.0mm, respectively). Furthermore, both can be used in conjunction with a T15 / SW2.5 screwdriver and a 2.5mm drill bit.

[0054] As can be understood, depending on the patient's pelvic condition and the location of the fixation holes on the implantable device, two or more suitable bone screws can be selected to effectively fix the implantable device on the pelvis.

[0055] In a non-restrictive example, refer to Figure 3a The position of the fixation hole, the filling through hole 22 can be set at one end of the fixation bracket 20 near the pubic bone 41 of the pelvis, such as... Figure 1 As shown. In addition, the filling through hole 22 can be provided on the side of the groove 21 of the fixation bracket 20, that is, the side of the fixation bracket 20 facing the patient's skin when it is installed in the patient's body.

[0056] This design allows for the injection of the implantable device into the filling cavity 60 via the filling through-hole 22 after the implantable device is fixed to the pelvis. By controlling the amount of fluid injected into the filling cavity 60, the expansion displacement of the cystic component 30 can be adjusted, thereby adjusting the pressure of the implantable device on the vaginal wall.

[0057] Specifically, for example, during the initial surgery, the fixation bracket 20 can be fixed to the pelvis 180. Then, a fluid is injected through the filling orifice 22, and the internal pressure of the cystic component 30 is monitored in real time. When the internal pressure reaches a specified value, the injection is stopped, and the filling orifice 22 is sealed with a sealing device such as a screw. This specified value can be preset and depends on each patient's actual situation, such as the required degree of vaginal compression or the required expansion displacement of the cystic component.

[0058] Alternatively, after the initial surgical treatment, when subsequent adjustment treatment is needed, the amount of fluid can be adjusted again through the filling orifice 22 to adjust the pressure on the vaginal wall without the need for cumbersome operations such as disassembling and replacing implantable devices. This can reduce the difficulty and cost of the operation, reduce patient trauma and pain, and reduce the risk of postoperative complications.

[0059] I can understand. Figure 3a The location of the filling through-hole 22 is only illustrative. In practice, the filling through-hole 22 can be set at a suitable location on the fixed support 20 or the cystic member 30 according to actual needs. For example, the filling through-hole can also be set on the cystic member 30, and correspondingly, injection or infusion can be performed through the filling through-hole via an infusion tube.

[0060] Reference Figure 2 The following describes another implantable device according to an embodiment of the present disclosure. In this embodiment, the cystic member 30 and the fixation bracket 20 are also detachable. For example, the cystic member 30 and the fixation bracket 20 may be provided with cooperating connectors such as snap fasteners, so that coupling and disassembly can be easily performed.

[0061] In this embodiment, the cystic member 30 is not as... Figure 4a and Figure 4b The hollow sac shown is open in shape but is itself a sealed structure; in other words, the sac-like member 30 has a sealed cavity 32. When the sac-like member 30 is coupled to the fixation bracket 20, the sac-like member 30 can be partially embedded in the groove 21 of the fixation bracket 20. In this case, the filling cavity 60 of the implantable device is the cavity 32 of the sac-like member 30. Accordingly, the injection of fluid into the filling cavity 60 can be performed through the filling through-hole 22 on the sac-like member 30 into its sealed cavity 32, while the fixation bracket 20 may not have a filling through-hole.

[0062] This design allows for easy replacement of the implantable device after it has been implanted in the patient; the cystic component 30 can be removed from the implantable device without removing the fixation bracket 20, which is already fixed to the bone, from the patient's body. Correspondingly, the updated cystic component 30 can then be secured to the original fixation bracket 20 using a connector such as a snap-fit. Furthermore, injection can be administered into the sealed cavity 32 of the updated cystic component 30 through the filling through-hole 22, causing the filling cavity 60 to expand. This expansion exposes the updated cystic component 30 on the outer surface of the fixation bracket 20, thus compressing the vaginal wall.

[0063] This simplified replacement procedure can reduce the difficulty and cost of the operation, reduce patient trauma and pain, and lower the risk of postoperative complications.

[0064] The above describes the implantable device and implantable kit for vaginal tightening disclosed herein. It is evident that this disclosure designs an implantable device comprising a composite fixation bracket and a cystic component. By installing this implantable device in the female pelvic floor, the female pelvic floor can be appropriately fixed and compressed, thereby improving vaginal laxity caused by childbirth and other reasons, and ultimately enhancing the quality of life.

[0065] The existing techniques for vaginal tightening include the following:

[0066] (1) Kegel exercises allow patients to voluntarily contract and relax their pelvic floor muscles, such as Kegel exercises, to enhance the support of the pelvic floor muscles. However, the disadvantage is that it is slow to take effect and requires long-term persistence. Many patients have poor compliance, and it is not effective for women with muscle strength of 0-1. If the exercise method is incorrect, it may have the opposite effect.

[0067] (2) Biofeedback electrical stimulation therapy uses electronic devices to convert the activity of pelvic floor muscles into sound and light signals to assist training. The electrical stimulator stimulates the muscles to produce rhythmic contractions, promoting functional recovery. However, the current intensity is limited, and excessive current can cause pain. Moreover, the treatment effect largely depends on the performance of the equipment and the skill level of the operator.

[0068] (3) Laser therapy, which uses laser to stimulate collagen remodeling and enhance the elasticity and tightness of the vaginal wall, but the duration of the effect is uncertain and multiple treatments may be required. There are also risks associated with improper operation or excessive energy.

[0069] (4) Traditional vaginal tightening surgery involves removing excess tissue from the posterior vaginal wall mucosa and muscle layer, followed by suturing and repair to reduce the volume of the vagina and achieve the purpose of tightening the vagina. However, there may be risks such as scar formation and painful intercourse after surgery.

[0070] It is evident that the aforementioned existing technologies all have certain drawbacks, such as poor efficacy, pain, and numerous sequelae. Compared to the aforementioned existing technologies, this disclosure, due to its integrated implantable device and kit that combines a fixation stent and a cystic component, possesses at least the following advantages:

[0071] (1) Better treatment effect. The implantable device and kit disclosed herein combine a relatively rigid fixation bracket with a flexible cystic component and fill it with a fluid material to control the amount of arc-shaped expansion displacement of the cystic component, thereby appropriately squeezing and limiting the vaginal wall to achieve a more effective improvement in vaginal laxity.

[0072] (2) The implantation operation is easier and less expensive. The implantation device and kit disclosed herein only require simple puncture and fixation operations, and the materials used in the implantation device and kit are less expensive. Therefore, the implantation operation is easier, easier to replace, and less expensive.

[0073] (3) The implantation device and kit disclosed herein have fewer sequelae. The implantation device and kit disclosed herein are made of softer materials and are more ergonomic, so that patients are less likely to experience discomfort such as foreign body sensation or pain after use, and are less likely to experience sequelae such as local tissue compression and damage.

[0074] Therefore, it can be understood that the implantable device and kit for vaginal tightening disclosed herein have strong practical significance.

[0075] The foregoing description includes examples of various aspects of the claimed subject matter. It is certainly impossible to describe every conceivable combination of components or methods for the purpose of depicting the claimed subject matter, but those skilled in the art will recognize that many further combinations and arrangements of the claimed subject matter are possible. Thus, the disclosed subject matter is intended to cover all such changes, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims

1. An implantable device for vaginal tightening, characterized in that, include: A fixing bracket (20) having a groove (21); as well as A cystic member (30) having a retractable cavity (32) and being hermetically coupled to the fixing bracket (20) such that the cavity (32) of the cystic member (30) mates with the groove (21) of the fixing bracket (20) to form a filling cavity (60). When a fluid is injected into the filling cavity (60), the filling cavity (60) expands to compress the vaginal wall.

2. The implantable device as claimed in claim 1, characterized in that, The fluid includes liquids and gases.

3. The implantable device as described in claim 1, characterized in that, The cystic member (30) is made of a material with an elastic modulus that is self-adaptive so that it can automatically adjust its shape when subjected to pressure.

4. The implantable device as described in claim 3, characterized in that, The material of the cystic member (30) includes silicone and / or silicone.

5. The implantable device as claimed in claim 3, characterized in that, The expansion displacement of the bladder member (30) is adjusted by controlling the amount of the fluid injected into the filling cavity (60).

6. The implantable device as claimed in claim 1, characterized in that, The cystic member (30) connects two symmetrical drum surfaces (34) through a positioning arc surface (33) to form the cavity (32), and the cystic member (30) is detachably coupled to the fixed bracket (20) through a mating surface (31) opposite to the positioning arc surface (33).

7. The implantable device as claimed in claim 1, characterized in that, The implantable device further includes a filling through-hole (22) disposed on the fixation bracket (20) or the cystic member (30) to inject the fluid material into the filling cavity (60) through the filling through-hole (22), and to seal the filling through-hole (22) by a plug corresponding to the filling through-hole (22) after the injection of the fluid material is completed.

8. The implantable device as claimed in claim 7, characterized in that, The fixation bracket (20) is further provided with fixation holes to cooperate with bone screws to fix the implantable device to the pelvis.

9. The implantable device as claimed in claim 8, characterized in that, The filling through hole (22) is located at one end of the fixation bracket (20) near the pubic bone (41) of the pelvis.

10. An implantable device for vaginal tightening, characterized in that, It includes two implantable devices as described in any one of claims 1-9, for fixing to both sides of the pelvis respectively.

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