Combined ureter traction device behind rectum
By designing a composite ureteral traction device behind the rectum, and utilizing the combination of a movable tissue separator and a rectal grasping forceps, the problems of high operational difficulty and poor stability of traditional ureteral traction devices behind the rectum are solved, achieving a highly efficient and safe ureteral traction effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE SECOND AFFILIATED HOSPITAL OF KUNMING MEDICAL UNIV
- Filing Date
- 2025-02-07
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional ureteral traction devices have problems such as high operational difficulty, large trauma, poor stability, easy slippage, and positional displacement when used for posterior rectal traction, which affect the safety and accuracy of the operation.
A composite ureteral traction device for the rectum was designed, comprising a movable tissue separator, a rectal grasping forceps, and a ureteral traction forceps. The movable tissue separator is inserted into the patient's body to expose the rectum. The rectal grasping forceps are used to grasp the rectum, and the ureteral traction forceps are used to pull the ureter. Combined with an inverted "8"-shaped free plate and an arc-shaped clamp, damage is reduced and stability is improved.
This technique enables precise and stable ureteral traction, reducing the risk of trauma to patients and improving the safety and efficiency of the surgery.
Smart Images

Figure CN224251412U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of ureteral traction, specifically relating to a retrorectal composite ureteral traction device. Background Technology
[0002] Bladder cancer is one of the most common tumors of the urinary system, and the Bricker bladder procedure is one of the standard surgical procedures for bladder cancer. Direct traction of the left ureter to the Bricker bladder anastomosis increases the risk of abdominal adhesions and intestinal obstruction. Current technical improvements, such as traction from the retrorectum to the right side for anastomosis, significantly reduce these problems. However, traction of the ureter from the retrorectum is difficult, and it is generally performed by the surgeon using their fingers to blindly and briefly dissect the space between the rectum and the retroperitoneal wall before pulling out the ureter. This procedure suffers from significant retroperitoneal damage and is time-consuming.
[0003] On the one hand, the lack of effective tissue dissection tools during ureteral traction results in insufficient tissue exposure during the procedure, increasing the difficulty of the operation. On the other hand, traditional methods often cause significant trauma to the patient when inserting instruments, affecting postoperative recovery.
[0004] On the other hand, existing devices struggle to effectively pull the ureter near the rectum while ensuring rectal safety. This increases the risk of rectal injury during the procedure and raises the likelihood of complications.
[0005] Furthermore, traditional traction tools lack stability when clamping the rectum and ureter, making them prone to slippage and affecting the progress and outcome of the surgery. Simultaneously, the lack of effective fixation of the clamping site makes it easy for positional displacement to occur during traction, reducing the accuracy of the surgery.
[0006] To address the aforementioned issues and improve the safety, accuracy, and efficiency of ureteral traction while reducing trauma to patients, this patent proposes a retrorectal composite ureteral traction device. Utility Model Content
[0007] The purpose of this invention is to provide a retrorectal composite ureteral traction device to solve the problems of low traction accuracy and easy trauma to patients caused by traditional ureteral traction devices mentioned in the background art.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a retrorectal composite ureteral traction device, comprising a movable tissue separator, wherein a rectal grasping forceps penetrates the upper end of the movable tissue separator, and a ureteral traction forceps are provided on the lower left side of the movable tissue separator.
[0009] Preferably, a lifting hole is provided at the center of the upper end of the active tissue separator, and the rectal grasping forceps penetrate through the lifting hole and through the active tissue separator.
[0010] Preferably, the active tissue separator has free plates on both the left and right sides at its lower end, and the two free plates are arranged in an inverted "8" shape.
[0011] Preferably, both of the free plates are fixedly connected to a through ring at their lower ends, and the two through rings are arranged in an inverted "8" shape.
[0012] Preferably, the rectal grasping forceps are provided with wide-edged clamps on both the left and right sides of the lower end, and both wide-edged clamps are arranged in an outwardly convex arc shape.
[0013] Preferably, both of the lower ends of the two wide-edged clamps are fitted with silicone sleeves, and the upper end of the rectal grasping clamp is provided with two intestinal occlusal fixing teeth, which are respectively fixedly connected to the left and right inner walls of the rectal grasping clamp.
[0014] Preferably, the ureteral traction forceps are fixedly connected to both the front and rear sides of the right end, and the two traction forceps are set at right angles to the ureteral traction forceps and pass through the inside of the two through rings. The upper end of the ureteral traction forceps is provided with two tube-biting fixing teeth, and the two tube-biting fixing teeth are fixedly connected to the inner walls of the front and rear ends of the ureteral traction forceps respectively.
[0015] Compared with the prior art, this utility model provides a retrorectal composite ureteral traction device, which has the following beneficial effects:
[0016] 1. This utility model, through the combined use of a movable tissue separator, rectal grasping forceps, and ureteral traction forceps, enables precise operation during ureteral traction. First, the movable tissue separator is inserted into the patient's body to expose the rectum; then, the rectal grasping forceps are used to clamp the rectum; finally, the ureteral traction forceps are used to pull the ureter. The operation process is clear and efficient.
[0017] 2. The two free plates and the through ring at the lower end of the movable tissue separator of this utility model are arranged in an inverted "8" shape, and the outer edges are treated with arc surfaces, which can be inserted into the patient's body more easily and reduce damage to the patient. At the same time, its front and rear width is large, further reducing the risk of injury during the insertion process.
[0018] 3. The wide-side clamp of the rectal grasping forceps of this utility model is designed with an outward convex arc shape, with external edge arc surface treatment and a large front and rear width, and is fitted with a silicone sleeve, which can effectively reduce damage to the rectum when grasping the rectum.
[0019] 4. The traction clamp of this utility model is set at a right angle to the ureter traction forceps, which can pass through the lower end of the rectum to clamp and pull the ureter without damage, reducing damage to the rectum and improving the efficiency of ureter extraction.
[0020] 5. The rectal grasping forceps of this utility model pass through the lifting hole at the center of the upper end of the movable tissue separator, making the rectal grasping operation more stable and accurate. The wide-sided clamps of the rectal grasping forceps form a circular grasping cavity, and the rectum is fixed by the intestinal biting fixing teeth to ensure the stability of the grasping. After the ureteral traction forceps grasp the ureter, they can be fixed by the tube biting fixing teeth, making the ureteral traction operation more convenient and improving the stability and accuracy of the operation. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the ureteral traction device of this utility model.
[0022] Figure 2 This is a schematic diagram of the connection structure of the active tissue separator of this utility model.
[0023] Figure 3 This is a schematic diagram of the connection structure of the rectal grasping forceps of this utility model.
[0024] Figure 4 This is a schematic diagram of the connection structure of the ureteral traction clamp of this utility model.
[0025] In the diagram: 1. Active tissue separator; 2. Rectal grasping forceps; 3. Ureteral traction forceps; 4. Lifting hole; 5. Free plate; 6. Passing ring; 7. Wide-edged clamp; 8. Silicone sleeve; 9. Intestinal occlusion fixation teeth; 10. Traction clamp; 11. Tube occlusion fixation teeth. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] This utility model provides, for example Figures 1-4The device shown is a retrorectal composite ureteral traction device, including a movable tissue separator 1. A rectal grasping forceps 2 penetrates the upper end of the movable tissue separator 1. A ureteral traction forceps 3 is provided on the lower left side of the movable tissue separator 1. During the ureteral traction process, the movable tissue separator 1 is inserted into the patient's body at the traction point, and the patient's rectum is exposed inside the movable tissue separator 1 through the opening at the lower end of the movable tissue separator 1. The rectum is then grasped by the rectal grasping forceps 2, and finally the ureter is pulled by the ureteral traction forceps 3.
[0028] Preferably, the movable tissue separator 1 has free plates 5 on both the left and right sides of its lower end, and the two free plates 5 are arranged in an inverted "V" shape. The lower ends of the two free plates 5 are fixedly connected to through rings 6, and the two through rings 6 are also arranged in an inverted "V" shape. When the movable tissue separator 1 is inserted into the patient's body, the two free plates 5 and the two through rings 6, which are arranged in an inverted "V" shape at the lower end, make it easier and more convenient for the movable tissue separator 1 to be squeezed into the patient's body. Moreover, the outer edges of the movable tissue separator 1, the two free plates 5 and the two through rings 6 are all treated with arc surfaces, and the front and back widths are large, which can effectively reduce the damage to the patient caused by the movable tissue separator 1 during the insertion process. At the same time, the rectum is exposed inside the movable tissue separator 1 through the gap between the two free plates 5 and the two through rings 6, which allows the rectal grasping forceps 2 to grasp the rectum more accurately and reduce damage to the rectum.
[0029] Preferably, a lifting hole 4 is provided at the center of the upper end of the movable tissue separator 1, and the rectal grasping forceps 2 passes through the lifting hole 4 and through the movable tissue separator 1. Wide-edged clamps 7 are provided on both the left and right sides of the lower end of the rectal grasping forceps 2, and both wide-edged clamps 7 are convex arc-shaped. Silicone sleeves 8 are fitted onto the outer lower ends of both wide-edged clamps 7. Two intestinal occlusal fixing teeth 9 are provided inside the upper end of the rectal grasping forceps 2, and the two intestinal occlusal fixing teeth 9 are respectively fixed... The two wide-sided clamps 7, which are fixedly connected to the inner walls of the rectal grasping forceps 2, form a circular grasping cavity between them when the rectum is grasped. This allows the two wide-sided clamps 7 to grasp the rectum through the grasping cavity and fix it with two intestinal interlocking teeth 9. The outer edges of the two wide-sided clamps 7 are all arc-shaped, with a large front and rear width, and are fitted with silicone sleeves 8. Therefore, the damage to the rectum caused by the two wide-sided clamps 7 during the grasping process can be effectively reduced.
[0030] Preferably, the ureteral traction clamp 3 has traction clamps 10 fixedly connected to both the front and rear sides of its right end. The two traction clamps 10 are set at right angles to the ureteral traction clamp 3 and pass through the inside of the two through rings 6. The upper end of the ureteral traction clamp 3 is provided with two tube-engaging fixing teeth 11, which are fixedly connected to the inner walls of the front and rear ends of the ureteral traction clamp 3. During the process of traction of the ureter, the ureteral traction clamp 3 can pull the ureter through the two traction clamps 10 set at right angles to it. The two traction clamps 10 can pass through the lower end of the rectum without damage through the two through rings 6 and clamp and pull the ureteral clamp. After clamping the ureter, it can be fixed by the two tube-engaging fixing teeth 11, which makes it easier for the ureteral traction clamp 3 to clamp the ureter, improve the efficiency of ureteral drainage, and reduce damage to the rectum.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A retrorectal composite ureteral traction device, characterized in that, It includes a movable tissue separator (1), with a rectal grasping forceps (2) penetrating through the upper end of the movable tissue separator (1), and a ureteral traction forceps (3) provided on the lower left side of the movable tissue separator (1).
2. The retrorectal composite ureteral traction device according to claim 1, characterized in that: The active tissue separator (1) has a lifting hole (4) at the center of its upper end, and the rectal grasping forceps (2) passes through the lifting hole (4) and through the active tissue separator (1).
3. The retrorectal composite ureteral traction device according to claim 2, characterized in that: The active tissue separator (1) has free plates (5) on both the left and right sides at the lower end, and the two free plates (5) are arranged in an inverted "eight" shape.
4. The retrorectal composite ureteral traction device according to claim 3, characterized in that: Both of the free plates (5) are fixedly connected to a through ring (6) at their lower ends, and the two through rings (6) are arranged in an inverted "8" shape.
5. A retrorectal composite ureteral traction device according to claim 1, characterized in that: The rectal grasping forceps (2) is provided with wide-edged clamps (7) on both the left and right sides of its lower end, and both wide-edged clamps (7) are arranged in an outwardly convex arc shape.
6. A retrorectal composite ureteral traction device according to claim 5, characterized in that: Both of the wide-edged clamps (7) are fitted with silicone sleeves (8) on their lower outer sides. The rectal grasping clamp (2) has two intestinal biting fixing teeth (9) inside its upper end, and the two intestinal biting fixing teeth (9) are fixedly connected to the left and right inner walls of the rectal grasping clamp (2) respectively.
7. A retrorectal composite ureteral traction device according to claim 1, characterized in that: The ureteral traction clamp (3) has traction clamps (10) fixedly connected to both the front and rear sides of the right end. The two traction clamps (10) are set at right angles to the ureteral traction clamp (3) and pass through the inside of the two through rings (6). The upper end of the ureteral traction clamp (3) is provided with two tube biting fixing teeth (11), and the two tube biting fixing teeth (11) are fixedly connected to the inner walls of the front and rear ends of the ureteral traction clamp (3).