Leakage-proof structure of hysteroscope
By designing a leak-proof structure for the hysteroscope, and using an elastic support sheet and a silicone sealing membrane to seal the cervix, the problem of leakage of distension fluid is solved, improving surgical efficiency and safety, reducing cervical damage and complications, and extending the service life of the hysteroscope.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIUZHOU CITY HEALTHCARE HOSPITAL FOR WOMEN & CHILDREN
- Filing Date
- 2025-04-22
- Publication Date
- 2026-07-10
AI Technical Summary
During hysteroscopic surgery, leakage of distending fluid due to cervical relaxation can affect the surgical outcome and safety. Current techniques use cervical forceps to clamp the cervical tissue, but the effect is unsatisfactory and the operation is complicated, prolonging the operation time and damaging the cervical tissue.
A hysteroscopic anti-leakage structure is adopted, including a central tube base, an elastic support sheet, a silicone outer sleeve, and a silicone sealing membrane sleeve. The elastic support sheet and the sealing membrane sleeve seal the cervix to prevent leakage of distending fluid. A spring ball head positioning mechanism is used to fix the inner tube support, reducing damage to the cervix.
It effectively solves the problem of extravasation of distending fluid, reduces operation time and complications, improves surgical efficiency and safety, ensures image clarity and the lifespan of the hysteroscope, and avoids mechanical damage to the cervix.
Smart Images

Figure CN224474460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hysteroscopy technology, specifically to a hysteroscopy leak-proof structure. Background Technology
[0002] When gynecologists perform hysteroscopic surgeries, such as endometrial polyp removal, submucosal myomectomy, endometrial resection, intrauterine adhesion lysis, removal of intrauterine foreign bodies, and uterine septum resection, some patients may have congenitally underdeveloped cervixes or be sensitive to preoperative medications. Under anesthesia, the cervix may be too relaxed, leading to severe leakage of distending fluid. This results in poor distending effect, unclear images, affects the surgical procedure, prolongs the operation time, and can also cause inaccurate calculation of the amount of fluid absorbed by the patient, leading to surgical complications such as pulmonary edema and hyponatremia.
[0003] In clinical practice, surgeons can only use cervical forceps to forcibly clamp the cervical tissue to close the external os of the cervix and reduce the leakage of distending fluid. This operation does have some effect, but the results are not ideal. Sometimes, doctors need to clamp the cervical tissue multiple times, which is a relatively complicated operation. This method not only prolongs the operation time, but also causes mechanical damage to the patient's cervical tissue. Utility Model Content
[0004] The purpose of this invention is to address the problem that surgeons in clinical practice can only use cervical forceps to forcibly clamp the cervical tissue to close the external os of the cervix and reduce the leakage of distension fluid. While this method does have some effect, the results are not ideal. Sometimes, doctors need to clamp the cervical tissue multiple times, making the operation relatively complex. This method not only prolongs the operation time but also causes mechanical damage to the patient's cervical tissue. This invention provides a hysteroscopic anti-leakage structure.
[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0006] A hysteroscopic anti-leakage structure includes a central tube base. Both ends of the central tube base are fixedly connected to end fixing rings. Multiple elastic support plates are fixedly arrayed to the outer ends of the two end fixing rings. The outer ends of the multiple elastic support plates on the same side are fitted with silicone sleeves. Operating slip rings and insertion stops are fixedly connected to the outer sides of the elastic support plates on both sides. The outer ends of the silicone sleeves on both sides are fixedly connected to the outer edges of the corresponding operating slip rings and insertion stops. A supporting inner tube is fixedly connected to the side of the insertion stop facing the center of the central tube base. The supporting inner tube is movably inserted into the inner cavity of the central tube base, and the operating slip ring is movably sleeved on the outer end of the supporting inner tube. An auxiliary pull rod is threaded to the end of the supporting inner tube away from the insertion stop. Multiple docking holes are evenly distributed on the outer wall of the supporting inner tube away from the insertion stop, and spring ball head positioning mechanisms are provided on the inner wall of the operating slip ring corresponding to the multiple docking holes.
[0007] This utility model also includes the following auxiliary technical solutions:
[0008] Furthermore, the spring ball head positioning mechanism includes multiple movable slots, which correspond to multiple docking holes respectively, and the bottom of the movable slot is fixedly connected to a ball head pin by a compression spring. The outer end of the ball head pin has a hemispherical structure.
[0009] Furthermore, the outer end of the insertion stop is a hemispherical structure, and a through hole communicating with the inner cavity of the supporting inner cylinder is opened at the center of the outer end of the insertion stop.
[0010] Furthermore, multiple silicone sealing membrane sleeves are evenly distributed within the inner cavity of the insertion stop and the support inner cylinder, and a ring-shaped silicone pad with a hysteroscopic perforation is opened at the center of each of the multiple silicone sealing membrane sleeves.
[0011] Furthermore, two clamping holes are symmetrically provided at both ends of the outer side of the operating slip ring.
[0012] Furthermore, the outer wall of the central cylinder is covered with a soft rubber contact sleeve.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The small diameter during insertion makes it easy to set and will not damage the cervix. It can effectively solve the problem of extravasation of distending fluid encountered by surgeons in hysteroscopic surgery, reduce operation time and surgical complications, and improve surgical efficiency and safety. The auxiliary pull rod can be pulled out until the spring ball head positioning mechanism is connected with the docking hole. After the operating slip ring is fixed to the outer wall of the supporting inner cylinder, the auxiliary pull rod can be rotated and removed, allowing the hysteroscope to pass through the inner cavity of the supporting inner cylinder for surgical operations, reducing the restrictions on hysteroscopic operations.
[0015] 2. This utility model, through the cooperation of the spring ball head positioning mechanism and the docking hole, can fix the position of the inner cylinder support, thereby facilitating the fixation of the operating slip ring.
[0016] 3. This invention, through the use of a silicone sealing membrane sleeve, effectively seals the gaps between the hysteroscope, the supporting inner tube, and the insertion stop, preventing leakage of the distending fluid, ensuring the distending effect, improving image clarity, and avoiding inaccurate calculations of the amount of fluid absorbed by the patient, thus reducing the probability of surgical complications. Furthermore, the elastic mechanism of the silicone sealing membrane sleeve minimizes the impact on hysteroscope movement, ensuring the smooth progress of the surgery. In addition, the soft material of the silicone sealing membrane sleeve will not damage the hysteroscope, extending its service life. Attached Figure Description
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a side sectional view of the present invention;
[0019] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;
[0020] Figure 4 This is a side sectional view of the present invention when it is positioned at the cervix.
[0021] Reference numerals: 1. Center cylinder seat; 2. End fixing ring; 3. Elastic support plate; 4. Operating slip ring; 5. Insertion stop; 6. Silicone outer sleeve; 7. Support inner cylinder; 8. Soft rubber contact sleeve; 9. Auxiliary pull rod; 10. Clamping insertion hole; 11. Docking hole; 12. Movable slot; 13. Ball head pin; 14. Compression spring; 15. Silicone sealing membrane sleeve. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1 - Figure 4The hysteroscopic anti-leakage structure of this embodiment includes a central tube seat 1. Both ends of the central tube seat 1 are fixedly connected to end fixing rings 2. The outer ends of the two end fixing rings 2 are respectively fixedly connected to multiple elastic support pieces 3 in an array. The outer ends of the multiple elastic support pieces 3 at the same end are covered with silicone sleeves 6. The outer sides of the elastic support pieces 3 at both ends are respectively fixedly connected to operating slip rings 4 and insertion stops 5. The outer ends of the silicone sleeves 6 on both sides are fixedly connected to the outer edges of the corresponding operating slip rings 4 and insertion stops 5. The insertion stops 5 are fixedly connected to a supporting inner tube 7 on the side facing the center of the central tube seat 1. The supporting inner tube 7 is movably inserted into the inner cavity of the central tube seat 1. The operating slip ring 4 is movably sleeved on the outer end of the supporting inner tube 7. The end of the supporting inner tube 7 away from the insertion stops 5 is threadedly connected to an auxiliary pull rod 9. The outer wall of the supporting inner tube 7 away from the insertion stops 5 has multiple docking holes 11 evenly distributed. The inner wall of the operating slip ring 4 is provided with a spring ball head positioning mechanism corresponding to the multiple docking holes 11.
[0024] The spring ball head positioning mechanism includes multiple movable slots 12, which correspond to multiple docking holes 11. The bottom of the movable slot 12 is fixedly connected to a ball head pin 13 by a compression spring 14. The outer end of the ball head pin 13 is a hemispherical structure. Through the cooperation of the spring ball head positioning mechanism and the docking holes 11, the position of the inner cylinder 7 can be fixed, thereby facilitating the fixing of the operating slip ring 4.
[0025] The outer end of the insertion stop 5 is a hemispherical structure, and a through hole communicating with the inner cavity of the supporting inner cylinder 7 is provided at the center of the outer end of the insertion stop 5. The hemispherical structure of the insertion stop 5 allows the structure to be inserted into the cervix more smoothly, and the through hole facilitates the insertion of the hysteroscope.
[0026] Multiple silicone sealing membrane sleeves 15 are evenly spaced within the inner cavities of the insertion stop 5 and the supporting inner cylinder 7. A ring-shaped silicone pad with a hysteroscopy perforation is centrally located within each of these silicone sealing membrane sleeves 15. The silicone sealing membrane sleeves 15 seal the gaps between the hysteroscopy and the supporting inner cylinder 7 and insertion stop 5, preventing leakage of distension fluid, ensuring effective distension, improving image clarity, and preventing inaccurate calculation of the amount of fluid absorbed by the patient, thus reducing the probability of surgical complications. Furthermore, the elastic mechanism of the silicone sealing membrane sleeves 15 reduces the impact on hysteroscopy movement, ensuring a smooth surgical procedure. In addition, the soft material of the silicone sealing membrane sleeves 15 will not damage the hysteroscopy, extending its service life.
[0027] Two clamping holes 10 are symmetrically provided at both ends of the outer side of the operating slip ring 4. The clamping holes 10 facilitate the use of external clamping tools to clamp the operating slip ring 4, thereby facilitating the movement and adjustment of the overall structure and improving ease of use.
[0028] The outer wall of the central tube 1 is covered with a soft rubber contact sleeve 8. The soft rubber contact sleeve 8 contacts the patient's cervix, increasing the comfort of use. At the same time, the soft rubber contact sleeve 8 is made of soft material and has a certain degree of elasticity, which can fit closely to the patient's cervix, further preventing leakage of distending fluid and improving the distending effect of the operation.
[0029] The working principle and usage procedure of this utility model are as follows: In use, the insertion stop 5 is inserted through the cervix, the central tube seat 1 is placed corresponding to the cervical position, and then the operating slip ring 4 is fixed using surgical clamps. The auxiliary pull rod 9 is pulled outwards, thereby compressing the elastic support plates 3 at both ends. The elastic support plates 3 are elastic plates with their centers offset outwards. When compressed, the centers of the elastic support plates 3 bend outwards, supporting the silicone outer sleeve 6. This causes the silicone outer sleeve 6 to rise on both sides of the cervix, forming a butterfly-shaped support that abuts against the inner and outer sides of the cervix, achieving fixation within the cervix and sealing the cervical opening. This device avoids leakage of distending fluid. Its small diameter during insertion makes it easy to set up and will not damage the cervix. It can effectively solve the problem of distending fluid leakage encountered by surgeons in hysteroscopic surgery, reduce operation time and surgical complications, and improve surgical efficiency and safety. The auxiliary pull rod 9 can be pulled out until the spring ball head positioning mechanism aligns with the docking hole 11. After the operating slip ring 4 is fixed to the outer wall of the supporting inner cylinder 7, the auxiliary pull rod 9 can be rotated and removed, allowing the hysteroscope to pass through the inner cavity of the supporting inner cylinder 7 for surgical operations, reducing restrictions on hysteroscopic operations.
[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A hysteroscopic anti-leakage structure, characterized in that: The device includes a central cylindrical base (1), both ends of which are fixedly connected to end fixing rings (2). Multiple elastic support plates (3) are fixedly connected to the outer ends of the two end fixing rings (2) in an array. Silicone sleeves (6) are fitted over the outer ends of the multiple elastic support plates (3) on the same side. Operating slip rings (4) and insertion stops (5) are fixedly connected to the outer sides of the elastic support plates (3) on both sides, and the outer ends of the silicone sleeves (6) on both sides are fixedly connected to the outer edges of the corresponding operating slip rings (4) and insertion stops (5). A supporting inner cylinder (7) is fixedly connected to the side of the seat (5) facing the center of the central cylinder seat (1). The supporting inner cylinder (7) is movably inserted into the inner cavity of the central cylinder seat (1), and the operating slip ring (4) is movably sleeved on the outer end of the supporting inner cylinder (7). An auxiliary pull rod (9) is threadedly connected to the end of the supporting inner cylinder (7) away from the insertion stop (5). Multiple docking holes (11) are evenly distributed on the outer wall of the supporting inner cylinder (7) away from the insertion stop (5), and a spring ball head positioning mechanism is provided on the inner wall of the operating slip ring (4) corresponding to the multiple docking holes (11).
2. The hysteroscopic anti-leakage structure according to claim 1, characterized in that: The spring ball head positioning mechanism includes multiple movable slots (12), each of which corresponds to a multiple docking hole (11). The bottom of the movable slot (12) is fixedly connected to a ball head pin (13) by a compression spring (14), and the outer end of the ball head pin (13) is a hemispherical structure.
3. The hysteroscopic anti-leakage structure according to claim 1, characterized in that: The outer end of the insertion stop (5) is a hemispherical structure, and the center of the outer end of the insertion stop (5) is provided with a through hole that communicates with the inner cavity of the supporting inner cylinder (7).
4. The hysteroscopic anti-leakage structure according to claim 3, characterized in that: The insertion stop (5) and the inner cavity of the support inner cylinder (7) are provided with multiple silicone sealing film sleeves (15) at equal intervals, and the multiple silicone sealing film sleeves (15) are annular silicone pads with hysteroscopic perforation holes at the center.
5. The hysteroscopic anti-leakage structure according to claim 1, characterized in that: The operating slip ring (4) has two symmetrical clamping holes (10) at both ends on its outer side.
6. The hysteroscopic anti-leakage structure according to claim 1, characterized in that: The outer wall of the central cylinder seat (1) is covered with a soft rubber contact sleeve (8).