Special-shaped pelvic floor repairing mesh
By designing a uniquely shaped pelvic floor repair mesh and using mesh and ligament connections on the anterior and posterior sides of the uterus and vagina, the problem of vaginal axial displacement and prolapse in existing pelvic floor reconstruction surgeries was solved. This achieved comprehensive fixation of the uterus and vagina, enhanced support, and reduced the risk of recurrence.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL ZHEJIANG UNIV COLLEGE OF MEDICINE
- Filing Date
- 2024-12-16
- Publication Date
- 2026-05-01
AI Technical Summary
Among existing pelvic floor reconstruction surgeries, transabdominal mesh repair has problems such as vaginal axial displacement, posterior vaginal wall prolapse, and high recurrence rate. In particular, it provides insufficient support for the anterior vaginal wall, making it difficult to balance long-term effectiveness with the patient's need to preserve the uterus.
A unique pelvic floor repair mesh is designed, comprising an anterior uterine-vaginal mesh and a posterior uterine-vaginal mesh. These are connected by suspension straps and ligaments to fix and suspend the anterior and posterior sides of the uterus and vagina, respectively, forming an overall support structure. The anterior uterine-vaginal mesh is connected to the iliopectine ligament via suspension straps, and the posterior uterine-vaginal mesh is connected to the posterior vaginal wall via uterosacral ligament connecting straps, achieving all-round fixation.
It effectively prevents pelvic organ prolapse, strengthens the support of the anterior and posterior vaginal walls, reduces postoperative recurrence, meets patients' needs to preserve the uterus, and improves the long-term effectiveness and safety of the surgery.
Smart Images

Figure CN224179830U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a special-shaped pelvic floor repair mesh. Background Technology
[0002] Pelvic organ prolapse (POP) is a condition caused by weakened pelvic floor support tissues, leading to the descent and displacement of pelvic organs and resulting in abnormal organ position and function. After menopause, women experience a decline in estrogen levels, which weakens the support of the pelvic floor muscles and ligaments, making them more susceptible to pelvic organ prolapse, severely impacting their health and quality of life.
[0003] Pelvic floor reconstruction surgery is currently an important method for resolving pelvic organ prolapse, mainly including two methods: autologous tissue repair and mesh repair. Autologous tissue repair has a lower risk of rejection, but it often requires hysterectomy. However, uterine diseases are often absent in POP patients, and preserving the uterus also provides some support for the cervix and upper vagina. Therefore, autologous repair surgery cannot guarantee long-term effectiveness. At the same time, many young patients with prolapse who require surgery have a strong desire to retain their uterus. Mesh repair includes two types: transvaginal placement of pelvic floor mesh and transabdominal placement of pelvic floor mesh. Transvaginal placement of pelvic floor mesh results in better anatomical repositioning than autologous tissue, but requires blind puncture and is prone to organ damage. Transabdominal placement of pelvic floor mesh, on the other hand, is placed under direct vision, offering high safety and low exposure. Transabdominal mesh repair mainly includes uterine / vaginal sacral fixation and iliopubic ligament fixation. Uterine / vaginal sacral fixation connects the anterior and posterior walls of the cervix / vagina to the right side of the anterior longitudinal ligament of the first sacral vertebra via mesh. Postoperatively, the vaginal axis is prone to rightward and ventral displacement. Iliopubic ligament fixation connects the anterior walls of the cervix and vagina to the bilateral iliopubic ligaments via mesh. Because the mesh does not cover the posterior vaginal wall and the vaginal axis is displaced ventrally, posterior vaginal wall prolapse is likely to occur. Furthermore, transabdominal mesh repair often requires hysterectomy or removal of the uterus, resulting in relatively insufficient support for the anterior vaginal wall. Anterior vaginal wall prolapse is the most common defect in pelvic floor prolapse, and insufficient support for the anterior wall in transabdominal mesh repair easily leads to postoperative recurrence. In contrast, iliopectineal ligament suspension or lateral abdominal wall suspension procedures place the mesh only on the lower segment of the anterior uterine wall or a small portion of the anterior vaginal wall. This may cause anterior displacement of the vaginal axis postoperatively. Furthermore, the lack of mesh support on the posterior walls of the uterus and vagina significantly increases the incidence of posterior vaginal wall prolapse. In addition, the mesh on the anterior and posterior walls of the uterus and vagina is often placed separately from the mesh on the posterior wall. Effective mesh connection between the two is required for them to integrate and jointly resist pelvic floor pressure.
[0004] Therefore, there is an urgent clinical need to develop pelvic floor repair meshes that can overcome the above problems. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a non-standard pelvic floor repair mesh.
[0006] This irregular pelvic floor repair mesh includes: anterior uterine-vaginal mesh and posterior uterine-vaginal mesh. The anterior uterine-vaginal mesh is fixedly connected to the anterior surface of the uterus and the anterior vaginal wall. Suspension straps are provided on both sides of the anterior uterine-vaginal mesh to connect the iliopubic ligaments on both sides of the uterus.
[0007] The posterior mesh of the uterus and vagina is fixedly connected to the lower end of the uterus and the junction of the uterosacral ligaments. The posterior mesh of the uterus and vagina is fixedly connected to the posterior side of the vagina. The uterosacral ligament connecting bands are provided on both sides of the posterior mesh of the uterus and vagina to connect the uterosacral ligaments on both sides of the uterus. The bottom of the posterior mesh of the uterus and vagina is fixed to the posterior wall of the vagina. One side of the posterior mesh of the uterus and vagina is fixedly connected to the anterior mesh of the uterus and vagina through the end of the cardinal ligament connecting band of the isthmus of the uterus.
[0008] Preferably, the anterior mesh of the uterus and vagina includes a lower uterine segment connection area and a pubocervical fascia connection area. The lower uterine segment connection area is located above the pubocervical fascia connection area, and the suspension band extends obliquely upward from both sides of the lower uterine segment connection area.
[0009] Preferably, the end of the cardinal ligament connecting band of the isthmus of the uterus on one side of the posterior mesh of the uterus and vagina is connected to one side of the pubocervical fascia connection area, and a cutting line is provided at the connection between the cardinal ligament connecting band of the isthmus of the uterus and the pubocervical fascia connection area.
[0010] Preferably, cardinal ligament connecting bands are provided on both sides of the upper part of the posterior mesh of the uterus and vagina. Two cardinal ligament connecting bands of the isthmus of the uterus are fixed from the posterior side of the uterus to the anterior side. The ends of the cardinal ligament connecting bands of the isthmus of the uterus are fixed on the anterior mesh of the uterus and vagina.
[0011] Preferably, the top center of the mesh on the posterior side of the uterus and vagina has a recessed notch.
[0012] Preferably, the bottom of the posterior vaginal mesh is provided with a posterior vaginal wall connection area, which is fixed to the posterior vaginal wall. The width of the posterior vaginal wall connection area gradually increases from top to bottom.
[0013] Preferably, a cutting line is provided at the top of the posterior vaginal wall connecting area and at the connection point of the posterior uterine vaginal mesh.
[0014] Preferably, both the anterior and posterior meshes of the uterus and vagina are bilaterally symmetrical.
[0015] The beneficial effects of this utility model are:
[0016] 1) This utility model suspends and fixes the anterior and posterior sides of the uterus and vagina using the anterior and posterior mesh panels of the uterus and vagina, respectively, effectively preventing pelvic organ prolapse. The connection between the anterior and posterior mesh panels of the uterus and vagina is provided with a cutting line, which can be used together or separated as needed, flexibly meeting various requirements.
[0017] 2) The uterine and vaginal anterior mesh of this utility model lifts the lower anterior part of the uterus with a suspension belt, and also strengthens the support of the anterior vaginal wall, effectively dealing with the situation of anterior vaginal wall prolapse.
[0018] 3) The posterior uterine and vaginal mesh of this utility model lifts the posterior vaginal wall through the posterior vaginal wall, avoiding prolapse of the posterior vaginal wall. The cardinal ligament connecting band of the isthmus of the uterus achieves the surrounding fixation of the lower part of the uterus and the upper part of the vagina. It is connected to the uterosacral ligaments on both sides through the uterosacral ligament connecting band. The uterosacral ligament connecting band and the uterosacral ligament match the direction, effectively improving the fixation effect and effectively tractioning the posterior vaginal wall. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the irregular pelvic floor repair mesh.
[0020] Figure 2 A schematic diagram of the anterior uterine and vaginal mesh structure after disassembly of the irregular pelvic floor repair mesh.
[0021] Figure 3 A schematic diagram of the posterior uterine and vaginal mesh structure after disassembly of the irregular pelvic floor repair mesh.
[0022] Figure 4 This is a front view diagram of the irregularly shaped pelvic floor repair mesh after it has been fixed in place.
[0023] Figure 5 This is a schematic diagram of the rear side after the irregular pelvic floor repair mesh has been fixed as a whole.
[0024] Explanation of reference numerals in the attached diagram: 1. Anterior mesh of uterus and vagina; 2. Posterior mesh of uterus and vagina; 3. Cutting line; 4. Uterus; 5. Vagina; 11. Lower segment connection area of uterus; 12. Pubocervical fascia connection area; 13. Suspension band; 21. Posterior vaginal wall area; 22. Cardinal ligament connection band of uterine isthmus; 23. Uterosacral ligament connection band; 41. Iliopubic ligament; 51. Uterosacral ligament. Detailed Implementation
[0025] The present invention will be further described below with reference to embodiments. The description of the embodiments below is only for the purpose of helping to understand the present invention. It should be noted that, for those skilled in the art, several modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.
[0026] As one example, such as Figures 1 to 5As shown, this irregularly shaped pelvic floor repair mesh, based on the principle of uterine and vaginal suspension, simultaneously reinforces the round ligament, sacroiliac ligament, cardinal ligament of the isthmus of the uterus, anterior wall of the uterus and vagina, and posterior wall of the uterus and vagina. It fixes the anterior and posterior walls of the uterus and vagina into a whole through a specially shaped mesh, in order to better repair the uterine and vaginal support structure and reduce recurrence. It includes: anterior uterine and vaginal mesh 1 and posterior uterine and vaginal mesh 2. Both anterior uterine and vaginal mesh 1 and posterior uterine and vaginal mesh 2 are symmetrical structures, which can effectively ensure the balance of traction force on both sides. Anterior uterine and vaginal mesh 1 is fixed to the anterior surface of the uterus 4 and part of the anterior vaginal wall. Suspension straps 13 are provided on both sides of anterior uterine and vaginal mesh 1 to connect the iliopubic ligaments 41 on both sides of the uterus 4.
[0027] like Figure 2 and Figure 4 As shown, specifically, the anterior mesh 1 of the uterus and vagina includes a lower uterine segment connection area 11 and a pubocervical fascia connection area 12. The lower uterine segment connection area 11 is located above the pubocervical fascia connection area 12 and is used to fix it to the lower uterine segment. The suspension strap 13 is connected to both sides of the lower uterine segment connection area 11 and extends obliquely upward to suspend the lower structure as a whole on the iliopectine ligament 41, suspending the lower uterine segment to prevent prolapse, and at the same time strengthening the support of the anterior wall of the uterus 4 and vagina 5.
[0028] like Figure 3 and Figure 5 As shown, the posterior mesh 2 of the uterus and vagina is fixedly connected to the lower end of the uterus 4 and the junction of the uterosacral ligaments. The posterior mesh 2 of the uterus and vagina is also fixedly connected to the posterior side of the vagina 5. Uterosacral ligament connecting bands 23 are provided on both sides of the posterior mesh 2 of the uterus and vagina to connect the uterosacral ligaments 51 on both sides of the uterus 4. The upper part of the posterior mesh 2 of the uterus and vagina has cardinal ligament connecting bands 22 on both sides of the isthmus. The two cardinal ligament connecting bands 22 of the isthmus are sutured and fixed to the lower end of the uterus 4 from the posterior side to the anterior side, realizing the surrounding fixation of the lower end of the uterus 4 and the upper end of the vagina 5. The overall stability is good and the comfort is good. The bottom of the posterior mesh 2 of the uterus and vagina has a posterior vaginal wall connecting area 21, which is used to fix it to the posterior vaginal wall on the posterior side of the vagina 5. The width of the posterior vaginal wall connecting area 21 gradually increases from top to bottom, which improves the fixation effect of the lower part of the posterior vaginal wall and can effectively pull the posterior vaginal wall to prevent prolapse. A cutting line 3 is provided at the top of the vaginal posterior wall connecting area 21 and the connection point of the uterine vaginal posterior mesh 2. Therefore, when the vaginal posterior wall connecting area 21 is not required, it can be cut along the cutting line 3 as needed.
[0029] like Figure 1As shown, the end of the cardinal ligament connecting band 22 of the isthmus of the uterus on one side of the posterior uterine-vaginal mesh 2 is connected to one side of the pubocervical fascia connection area 12. By bending the cardinal ligament connecting band 22, the posterior uterine-vaginal mesh 2 can be turned to the posterior side of the uterus 4. The other end of the cardinal ligament connecting band 22 of the isthmus of the uterus is bent to the anterior side of the uterus 4 and then sutured and fixed to the pubocervical fascia connection area 12. At this time, the anterior uterine-vaginal mesh 1 and the posterior uterine-vaginal mesh 2 can be used as a whole. The suspension band 13 and the uterosacral ligament connecting band 23 are connected to the ligaments on both sides respectively, playing a comprehensive role in preventing prolapse.
[0030] A cutting line 3 is provided at the connection between the cardinal ligament connecting band 22 and the pubocervical fascia connecting area 12. Therefore, it can also be cut along the cutting line 3 as needed and used in the required locations, relying on the corresponding ligaments to suspend or fix the uterus 4 and vagina 5 in a targeted manner.
[0031] The top center of the mesh 2 on the posterior side of the uterus and vagina has a recessed notch.
Claims
1. A special-shaped pelvic floor repair mesh, characterized in that, include: The uterus and vagina have anterior and posterior mesh panels. The anterior mesh panel is fixedly connected to the anterior surface of the uterus and the anterior vaginal wall. Suspension straps are provided on both sides of the anterior mesh panel to connect the iliopubic ligaments on both sides of the uterus. The posterior mesh of the uterus and vagina is fixedly connected to the lower end of the uterus and the junction of the uterosacral ligaments. The posterior mesh of the uterus and vagina is fixedly connected to the posterior side of the vagina. The uterosacral ligament connecting bands are provided on both sides of the posterior mesh of the uterus and vagina to connect the uterosacral ligaments on both sides of the uterus. The bottom of the posterior mesh of the uterus and vagina is fixed to the posterior side of the vagina. One side of the posterior mesh of the uterus and vagina is fixedly connected to the anterior mesh of the uterus and vagina through the end of the cardinal ligament connecting band of the isthmus of the uterus.
2. The irregularly shaped pelvic floor repair mesh according to claim 1, characterized in that, The anterior mesh of the uterus and vagina includes the lower uterine segment connection area and the pubocervical fascia connection area. The lower uterine segment connection area is located above the pubocervical fascia connection area, and the suspension band extends obliquely upward from both sides of the lower uterine segment connection area.
3. The irregularly shaped pelvic floor repair mesh according to claim 2, characterized in that, The end of the cardinal ligament connecting band of the isthmus of the uterus on one side of the posterior mesh of the uterus and vagina is connected to one side of the pubocervical fascia connection area. There is a cutting line at the connection between the cardinal ligament connecting band of the isthmus of the uterus and the pubocervical fascia connection area.
4. The irregularly shaped pelvic floor repair mesh according to claim 1, characterized in that, The upper part of the posterior mesh of the uterus and vagina has cardinal ligament connecting bands on both sides. The two cardinal ligament connecting bands of the cardinal ligament of the uterus are fixed from the posterior side of the uterus to the anterior side. The ends of the cardinal ligament connecting bands of the cardinal ligament of the uterus are fixed to the anterior mesh of the uterus and vagina.
5. The irregularly shaped pelvic floor repair mesh according to claim 1, characterized in that, The posterior mesh of the uterus and vagina has a recessed notch at the top center.
6. The irregularly shaped pelvic floor repair mesh according to claim 1, characterized in that, The bottom of the posterior vaginal mesh is provided with a posterior vaginal wall connection area, which is fixed to the posterior vaginal wall. The width of the posterior vaginal wall connection area gradually increases from top to bottom.
7. The irregularly shaped pelvic floor repair mesh according to claim 6, characterized in that, A cutting line is provided at the top of the posterior vaginal wall connecting area and at the connection point between the posterior uterine vaginal mesh and the posterior vaginal mesh.
8. The irregularly shaped pelvic floor repair mesh according to claim 1, characterized in that, Both the anterior and posterior meshes of the uterus and vagina are bilaterally symmetrical structures.