Simple vagina loop ligature assembly suitable for laparoscopic cervical cancer treatment

By designing a simple vaginal ligation assembly, and using a sleeve to deliver and tighten the ligation band, the complex problem of tightening the ligation band with laparoscopic clamps is solved, achieving simplified operation and reliable vaginal closure, and saving surgical time.

CN224140867UActive Publication Date: 2026-04-21CHONGQING UNIV CANCER HOSPITAL
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING UNIV CANCER HOSPITAL
Filing Date
2025-01-14
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In existing technologies, tightening the ligature using laparoscopic clamps is a complex procedure that affects surgical efficiency.

Method used

A simple vaginal ligation assembly was designed, including a sleeve and a ligation band. The outer diameter of the sleeve gradually increases. The ligation band is delivered and tightened through the sleeve, avoiding the use of laparoscopic forceps. Vaginal ligation is completed by tightening the ligation band using the narrow end of the sleeve.

Benefits of technology

It simplifies the operation process, reduces the complexity of the surgery, saves surgical time, and the ligation fixation is reliable and can effectively close cervical lesions.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224140867U_ABST
    Figure CN224140867U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a simple vagina loop ligature assembly suitable for laparoscopic cervical cancer treatment, which comprises a sleeve and a loop ligature belt, the outer diameter of the sleeve is gradually increased along the axial direction, one end of the sleeve is a thick end, the other end of the sleeve is a thin end, the outer diameter of the thick end is less than or equal to 9mm, and the outer diameter of the thin end is less than or equal to 5mm; the ligation band comprises a band body and a band head, the band body can pass through the thin end and the band head is not allowed to pass through the thin end, and the band body and the band head can pass through the thick end. The laparoscope binding band is simple in structure and low in cost, the sleeve is used for rapidly feeding the binding band into the abdominal cavity, the thin end of the sleeve is used for tightening the ligation band, the ligation band does not need to be tightened through a laparoscope clamp, operation is easy for a surgeon, and operation time is saved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a simple vaginal ligation component suitable for laparoscopic cervical cancer treatment. Background Technology

[0002] Cervical cancer is a common gynecological malignancy. Appropriate individualized treatment plans are formulated based on a comprehensive consideration of clinical stage, patient age, fertility requirements, overall health, medical technology level, and equipment availability. A comprehensive treatment approach is typically employed, primarily using surgery and radiotherapy, supplemented by chemotherapy. Laparoscopic radical hysterectomy is a major treatment for early-stage cervical cancer, requiring the freeing and removal of approximately ≥3cm of the vagina during the procedure. To prevent cervical lesions from detaching and contaminating the pelvic cavity or vagina during vaginal transection, thus avoiding tumor implantation and metastasis, vaginal ligation and cervical lesion sealing are necessary before vaginal incision to achieve a tumor-free outcome. Currently, sterile ligatures are used to ligate the vagina during surgery. However, after the ligature is inserted into the pelvic cavity through the laparoscopic cannula, it needs to be tightened using laparoscopic forceps. Tightening the ligature requires the coordinated operation of two laparoscopic forceps, making the procedure relatively cumbersome. Utility Model Content

[0003] The present invention aims to provide a simple vaginal ligation assembly suitable for laparoscopic cervical cancer treatment, in order to solve the problem of the relatively complicated operation of tightening the ligation band by clamping it with laparoscopic forceps.

[0004] To achieve the above objectives, the present invention provides a simplified vaginal ligation assembly suitable for laparoscopic cervical cancer treatment, comprising a sleeve and a ligation band. The outer diameter of the sleeve gradually increases along its axial direction, with one end being a thicker end and the other end being a thinner end. The outer diameter of the thicker end is ≤9mm, and the outer diameter of the thinner end is ≤5mm. The ligation band comprises a band body and a band head. The thinner end allows the band body to pass through but does not allow the band head to pass through, while the thicker end allows both the band body and the band head to pass through.

[0005] The working principle and beneficial effects of this method are as follows: In this method, after the ligature body passes through the ligature head to form a loop, the end of the ligature body is inserted into the thicker end of the sleeve and exits from the thinner end of the sleeve. The loop is placed inside the sleeve, and the sleeve is fitted onto the laparoscopic cannula, thereby quickly inserting the ligature into the abdominal cavity. After withdrawing the sleeve, the ligature is tightened using the thinner end of the sleeve, thus completing the vaginal ligation. This method has a simple structure, low cost, and is easy to operate. It does not require the use of laparoscopic forceps to tighten the ligature, making it easy for surgeons to learn. The vaginal ligation is firm and reliable, effectively sealing cervical lesions and saving surgical time.

[0006] Optionally, the axial length of the sleeve is ≥30cm.

[0007] In this design, the axial length of the sleeve is limited to more than 30cm to ensure that its axial length is greater than that of the laparoscopic cannula, thereby ensuring that the sleeve can penetrate the laparoscopic cannula.

[0008] Optionally, the outer diameter of the thicker end is 9 mm, and the outer diameter of the thinner end is 5 mm.

[0009] In this design, the outer diameter of the thicker end of the sleeve is limited to 9mm, and the outer diameter of the thinner end of the sleeve is limited to 5mm. This ensures that the sleeve can pass through the laparoscopic sleeve while maximizing the internal space of the sleeve.

[0010] Optionally, the axial length of the sleeve is 30cm.

[0011] In this design, the axial length of the sleeve is limited to 30cm. At this length, the sleeve can penetrate the laparoscopic sleeve.

[0012] Optionally, the wall thickness of the sleeve is 1 to 2 mm.

[0013] In this design, the wall thickness of the sleeve is limited to 1-2 mm to avoid the internal space of the sleeve being too small to allow the cable tie to pass through if the wall thickness is too thick, while also avoiding the deformation caused by the wall thickness being too thin.

[0014] Optionally, the sleeve has a wall thickness of 1 mm.

[0015] In this solution, the width of the cable tie body can be selected as 2.5mm. When the wall thickness is 1mm and the outer diameter of the thin end is 5mm, the 2.5mm cable tie body can just pass through the thin end, and the cable tie head cannot pass through the thin end.

[0016] Optionally, the sleeve is a seamless metal tube or a seamless plastic rigid tube.

[0017] In this solution, when the sleeve is a seamless metal tube, the sleeve can be disinfected and reused; while when the sleeve is a seamless plastic rigid tube, it is a disposable consumable and there is no need for recycling costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a simple vaginal ligation assembly suitable for laparoscopic cervical cancer treatment according to Embodiment 1 of this utility model;

[0019] Figure 2 This is a schematic diagram of a simplified vaginal ligation assembly suitable for laparoscopic cervical cancer treatment from another perspective in Embodiment 1 of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure in Embodiment 1 of this utility model when the ligature is inserted into the abdominal cavity using a sleeve;

[0021] Figure 4This is a schematic diagram of the structure when the narrow end of the sleeve abuts against the cable tie head in Embodiment 1 of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure in Embodiment 2 of this utility model when the ligature is inserted into the abdominal cavity using a sleeve. Detailed Implementation

[0023] The following detailed description illustrates the specific implementation method:

[0024] The markings in the accompanying drawings include: sleeve 1, thick end 110, thin end 120, ligature 2, ligature body 210, ligature head 220, and laparoscopic sleeve 3.

[0025] Example 1

[0026] This embodiment is basically as follows: Figure 1 and Figure 2 The illustration shows a simple vaginal ligation assembly suitable for laparoscopic cervical cancer treatment, comprising a sleeve 1 and a ligation band 2. The outer diameter of the sleeve 1 gradually increases along its axial direction. One end of the sleeve 1 is a thicker end 110, and the other end is a thinner end 120. The outer diameter of the thicker end 110 is ≤9mm, and the outer diameter of the thinner end 120 is ≤5mm. The wall thickness of the sleeve 1 is 1-2mm, and the axial length of the sleeve 1 is ≥30cm. In this embodiment, the outer diameter of the thicker end 110 is 9mm, the outer diameter of the thinner end 120 is 5mm, the wall thickness of the sleeve 1 is 1mm, and the axial length of the sleeve 1 is 30cm. The sleeve 1 is a seamless metal tube or a seamless rigid plastic tube. In this embodiment, the sleeve 1 is a seamless metal tube, which can be sterilized and reused after use.

[0027] The cable tie 2 includes a cable tie body 210 and a cable tie head 220. The cable tie head 220 is integrally formed at one end of the cable tie body 210. The end of the cable tie body 210 away from the cable tie head 220 passes through the cable tie head 220 to form a loop. The narrow end 120 of the sleeve 1 allows the cable tie body 210 to pass through but does not allow the cable tie head 220 to pass through, while the wide end 110 of the sleeve 1 allows both the cable tie body 210 and the cable tie head 220 to pass through. In this embodiment, the width of the cable tie body 210 is 2.5 mm, and the length of the cable tie body 210 is 50 cm.

[0028] In practical use, the end of the cable tie body 210 furthest from the cable tie head 220 is passed through the cable tie head 220 to form a loop. Next, the end of the cable tie body 210 furthest from the loop is inserted into the thicker end 110 of the sleeve 1 and exits through the thinner end 120 of the sleeve 1. Since the inner diameter of the thicker end 110 of the sleeve 1 is 7mm, the loop of the cable tie 2 and the cable tie head 220 can enter the thicker end 110 of the sleeve 1. After the loop of the cable tie 2 enters the thicker end 110 of the sleeve 1, the thicker end 110 of the sleeve 1 is inserted into the laparoscopic sleeve 3 (the inner diameter of the laparoscopic sleeve 3 is 10mm). Figure 3As shown, the loop of the ligature 2 is inserted into the abdominal cavity. Then, the sleeve 1 is withdrawn, leaving the loop of the ligature 2 inside the abdominal cavity. The surgeon uses laparoscopic forceps to clamp the loop onto the vagina, and then inserts the end of the ligature body 210 outside the body into the thin end 120 of the sleeve 1. The thin end 120 of the sleeve 1 is then inserted into the laparoscopic sleeve 3 until the thin end 120 of the sleeve 1 abuts against the ligature head 220. Figure 4 As shown; the surgeon holds the sleeve 1 with one hand and pulls the ligature body 210 outward with the other hand, reducing the binding range of the loop and completing the vaginal ligation; finally, the surgeon uses laparoscopic forceps to cut off the excess ligature body 210, pulls out the excess ligature body 210, and then pulls out the sleeve 1.

[0029] In summary, this embodiment utilizes the sleeve 1 to deliver and tighten the ligation band 2. This embodiment has the following advantages: 1) It is simple to operate, eliminating the need for laparoscopic forceps to tighten the ligation band 2, making it easy for surgeons to use and saving surgical time; 2) The above-mentioned simple vaginal ligation assembly has a simple structure, low cost, and is suitable for widespread use; 3) The vaginal ligation is securely fixed and can effectively close cervical lesions.

[0030] Example 2

[0031] The difference between this embodiment and Embodiment 1 is that: Figure 5 As shown, in this embodiment, the axial length of the narrow end 120 of the sleeve 1 is 10cm. This embodiment provides another sleeve 1 shape. Compared with the sleeve 1 in Embodiment 1, the sleeve 1 in this embodiment uses less material during manufacturing and does not affect the use of the sleeve 1.

[0032] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness or practicality of this utility model. The specific embodiments described in the specification can be used to interpret the claims.

Claims

1. A simplified vaginal ligation assembly suitable for laparoscopic cervical cancer treatment, characterized in that: It includes a sleeve and a cable tie. The outer diameter of the sleeve gradually increases along its axial direction. One end of the sleeve is a thick end and the other end is a thin end. The outer diameter of the thick end is ≤9mm and the outer diameter of the thin end is ≤5mm. The cable tie includes a cable tie body and a cable tie head. The thin end allows the cable tie body to pass through but does not allow the cable tie head to pass through. The thick end allows both the cable tie body and the cable tie head to pass through.

2. The simple vaginal cuff ligation assembly suitable for use in laparoscopic treatment of cervical cancer procedure as claimed in claim 1, wherein: The axial length of the sleeve is ≥30cm.

3. The simple vaginal cuff ligation assembly suitable for use in laparoscopic treatment of cervical cancer procedure as claimed in claim 1, wherein: The outer diameter of the thick end is 9mm, and the outer diameter of the thin end is 5mm.

4. The simplified vaginal ligation assembly for laparoscopic cervical cancer treatment according to claim 2, characterized in that: The axial length of the sleeve is 30cm.

5. The simple vaginal cuff ligation assembly suitable for use in laparoscopic treatment of cervical cancer procedure as claimed in claim 1, wherein: The sleeve has a wall thickness of 1 to 2 mm.

6. The simple vaginal cuff ligation assembly suitable for use in laparoscopic treatment of cervical cancer procedure as claimed in claim 5 wherein: The sleeve has a wall thickness of 1 mm.

7. The simple vaginal cuff ligation assembly suitable for use in laparoscopic treatment of cervical cancer procedure as claimed in claim 1, wherein: The sleeve is a seamless metal tube or a seamless plastic rigid tube.