Hemorrhoids loop ligature anastomat with limiting structure

By designing a limiting component on the hemorrhoid ligation stapler and using an arc-shaped clamping plate and spring components to fix the ligation tube, the problem of unstable ligation tube position was solved, improving the accuracy and applicability of the surgery.

CN224070507UActive Publication Date: 2026-04-03WUXI RUIYUANPU MEDICAL INSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing hemorrhoid ligation staplers lack a limiting structure, causing the ligation tube to move or slide inside the anus, affecting surgical precision and success rate.

Method used

A hemorrhoid ligation stapler with a limiting structure was designed, including an arc-shaped clamping plate, an ear plate and a spring component, which are fixed to the outside of the ligation tube by a detachable connection to ensure the stability of the ligation tube position.

Benefits of technology

It effectively prevents the ligation tube from moving or sliding inside the anus, reduces the surgical error rate, and adapts to the location of hemorrhoids in different patients, thus improving the success rate of the surgery.

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Abstract

The utility model provides a haemorrhoids loop ligature anastomat with a limiting structure, and belongs to the technical field of anastomats. The haemorrhoids loop ligature anastomat with the limiting structure comprises a haemorrhoids loop ligature anastomat part and a limiting assembly. The ligation tube part is mounted at the front end of the handle part; the top ends of the two arc-shaped clamping plates are both fixedly connected with lug plates, a rotating shaft is arranged between the two lug plates in a rotating mode, the rotating shaft is sleeved with a spring piece, the extending end of the spring piece makes contact with and abuts against the opposite faces of the two lug plates, and the two arc-shaped clamping plates are detachably arranged on the outer side of the ligation tube part in a clamped mode. Under the action of an arc-shaped clamping plate, an ear plate and a spring piece, the ligation tube part can be limited, so that an operator can find that the ligation tube part moves towards the interior of the anus or slides towards the exterior of the anus in time during operation, remedy can be carried out, and the error rate of an operation is reduced.
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Description

Technical Field

[0001] This application relates to the field of staplers, and more specifically, to a hemorrhoid ligation stapler with a limiting structure. Background Technology

[0002] Hemorrhoids, commonly known as piles, are a common anorectal disease caused by congestion or stasis and swelling of the venous plexus in the anal canal or lower rectum. Hemorrhoids can be classified into external hemorrhoids, internal hemorrhoids, and mixed hemorrhoids. Causes include displacement of the anal cushions or varicose veins, as well as poor bowel habits, chronic diseases, and a low-fiber diet. Approximately 40% of patients are asymptomatic; common symptoms include bleeding during defecation, perianal itching, pain, and prolapse of the hemorrhoids. The principle of rubber band ligation for internal hemorrhoids is to insert a small rubber band around the base of the hemorrhoid using an instrument. The strong elasticity of the rubber band blocks the blood supply to the internal hemorrhoid, causing ischemia, necrosis, and eventual sloughing, leading to spontaneous healing. For example, the automatic hemorrhoid ligation stapler disclosed in Chinese application number 202121295745.7 can automatically cut hemorrhoids, but it lacks a limiting component. As a result, when the doctor inserts the ligation tube into the anus to ligate the hemorrhoids, after the ligation tube has entered the designated position, the ligation tube may move further into the anus or slide outward during other operations such as suture cutting, thereby changing the position of the ligation tube. The surgeon may not notice the movement, which is not conducive to the subsequent operation. Utility Model Content

[0003] To overcome the above deficiencies, this application provides a hemorrhoid ligation stapler with a limiting structure, which aims to improve the problem that the ligation tube may move into the anus or slide outward, thereby changing the position of the ligation tube and hindering subsequent surgery.

[0004] This application provides a hemorrhoid ligation stapler with a limiting structure, including a hemorrhoid ligation stapler part and a limiting component.

[0005] The hemorrhoid ligation stapler includes a handle and a ligation tube, wherein the ligation tube is installed at the front end of the handle.

[0006] The limiting component includes arc-shaped clamping plates, each of which has an ear plate fixedly connected to its top end. A rotating shaft is rotatably provided between the two ear plates. A spring is sleeved on the rotating shaft, and the extended end of the spring is in close contact with the opposing surfaces of the two ear plates. The two arc-shaped clamping plates are detachably clamped to the outside of the ligating tube.

[0007] In one specific implementation, an extension plate is fixedly connected to the side of each of the two arc-shaped plates away from the handle portion.

[0008] In one specific implementation, a flexible pad is attached to the side of the two extension plates away from the arc-shaped plate.

[0009] In one specific implementation, elastic pads are adhered to the inner walls of both of the arc-shaped plates.

[0010] In one specific implementation, the spring component includes a spring and support rods. The spring is sleeved on the outside of the rotating shaft. One end of each of the two support rods is connected to both ends of the spring, and the other ends of the two support rods are respectively inclined and in close contact with the opposing surfaces of the two ear plates.

[0011] In one specific implementation, the tops of the two ear plates are fitted with anti-slip sleeves.

[0012] In one specific implementation, a protrusion is provided at the top of the handle portion, and the two arc-shaped clamping plates are held on the protrusion.

[0013] In one specific implementation, both ear plates are provided with through slots, and the rotating shaft is rotatably connected to the through slots.

[0014] Beneficial effects:

[0015] 1. The ligation tube can be limited by the arc-shaped clamp, ear plate and spring, so that the surgeon can detect the movement of the ligation tube into or out of the anus in time, so as to make corrections and reduce the error rate of the operation.

[0016] 2. The detachable connection between the two arc-shaped clamps and the ligation tube allows the position of the limiting component to be changed according to the different locations of the patient's hemorrhoids, making it suitable for use by every patient. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the hemorrhoid ligation stapler with a limiting structure provided in the embodiments of this application;

[0019] Figure 2 A schematic diagram of the connection relationship structure of the limiting component on the handle portion provided in the embodiments of this application;

[0020] Figure 3 A schematic diagram of the limiting component structure provided in the embodiments of this application;

[0021] Figure 4 A schematic diagram illustrating the connection structure between the arc-shaped retaining plate, the ear plate, and the spring member provided in the embodiments of this application.

[0022] In the diagram: 10 - Hemorrhoid ligation stapler; 110 - Handle; 120 - Ligation tube; 130 - Protrusion; 20 - Limiting component; 210 - Arc-shaped clamping plate; 220 - Ear plate; 230 - Rotating shaft; 240 - Spring component; 241 - Spring; 242 - Support rod; 250 - Elastic pad; 260 - Extension plate; 270 - Flexible pad; 280 - Anti-slip sleeve. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0024] Please see Figures 1-4 This application provides a hemorrhoid ligation stapler with a limiting structure, including a hemorrhoid ligation stapler portion 10 and a limiting component 20.

[0025] Please see Figure 1 and Figure 2 The hemorrhoid ligation stapler part 10 includes a handle part 110 and a ligation tube part 120, with the ligation tube part 120 installed at the front end of the handle part 110. In use, the surgeon picks up the handle part 110 and inserts the ligation tube part 120 into the hemorrhoids in the patient's anus to perform ligation.

[0026] In this embodiment, the specific structure, connection relationship and working principle of the hemorrhoid ligation stapler part 10 are existing technologies and will not be described in detail here.

[0027] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4The limiting component 20 includes arc-shaped locking plates 210, with ear plates 220 fixedly connected to the top of each of the two arc-shaped locking plates 210. A rotating shaft 230 is rotatably mounted between the two ear plates 220, and a spring member 240 is sleeved on the rotating shaft 230. The extended end of the spring member 240 is in close contact with the opposing surfaces of the two ear plates 220. The two arc-shaped locking plates 210 are detachably locked onto the outside of the ligation tube portion 120. Each ear plate 220 has a through groove, and the rotating shaft 230 is rotatably connected to the through groove. When the ligation tube portion 120 is inserted into the appropriate position at the patient's anus and hemorrhoids, the two ear plates 220 are removed, and the thumb and forefinger squeeze each other to open the two arc-shaped locking plates 210, which are then locked onto the ligation tube portion 120 near the anus. Then, the ear plates 220 are released, and under the action of the spring member 240, the two arc-shaped locking plates 210 are locked onto the ligation tube portion 120. The arc-shaped retaining plate 210, ear plate 220, and spring member 240 can limit the ligation tube 120, allowing the surgeon to promptly detect any movement of the ligation tube 120 into or out of the anus during operation, thus enabling remedial action and reducing surgical error rates. The detachable connection between the two arc-shaped retaining plates 210 and the ligation tube 120 allows the position of the limiting component 20 to be adjusted according to the different locations of the hemorrhoids, making it suitable for each patient.

[0028] In this embodiment, extension plates 260 are fixedly connected to the sides of the two arc-shaped clamping plates 210 away from the handle portion 110. Flexible pads 270 are adhered to the sides of the two extension plates 260 away from the arc-shaped clamping plates 210. The extension plates 260 can contact the patient's buttocks, preventing the arc-shaped clamping plates 210 from directly contacting the patient's buttocks, while the flexible pads 270 increase the comfort of contact with the buttocks.

[0029] In the specific setup, elastic pads 250 are attached to the inner walls of both arc-shaped clamping plates 210. The elastic pads 250 protect the ligating tube section 120 and prevent wear on the ligating tube section 120 during the limiting process.

[0030] In this embodiment, the spring component 240 includes a spring 241 and support rods 242. The spring 241 is sleeved on the outside of the rotating shaft 230. One end of each of the two support rods 242 is connected to both ends of the spring 241, and the other ends of each support rod 242 are inclined and contact the opposing surfaces of the two ear plates 220. The cooperation of the spring 241 and the support rods 242 enables the elastic clamping of the two arc-shaped clamping plates 210.

[0031] In the specific design, anti-slip sleeves 280 are fitted onto the tops of the two ear plates 220. This increases the friction between the fingers and the ear plates 220.

[0032] In this embodiment, a protrusion 130 is provided at the top of the handle portion 110, and two arc-shaped clamping plates 210 are clamped on the protrusion 130. When the limiting component 20 is not used, clamping the limiting component 20 on the protrusion 130 facilitates storage and reduces friction between the limiting component 20 and the ligating tube portion 120.

[0033] Working principle of this hemorrhoid ligation stapler with a limiting structure:

[0034] Once the ligation tube 120 is positioned appropriately at the hemorrhoid site, the two ear plates 220 are removed. The thumb and forefinger squeeze together to open the two arc-shaped retaining plates 210, which are then secured to the ligation tube 120 near the anus. The ear plates 220 are then released, and the spring 240 causes the two arc-shaped retaining plates 210 to lock onto the ligation tube 120. The arc-shaped retaining plates 210, ear plates 220, and spring 240 effectively limit the ligation tube 120, allowing the surgeon to promptly detect any movement or slippage into or out of the anus during the procedure, thus enabling corrective action and reducing surgical errors. The detachable connection between the two arc-shaped retaining plates 210 and the ligation tube 120 allows the position of the limiting component 20 to be adjusted according to the different hemorrhoid locations, making it suitable for each patient.

[0035] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. A hemorrhoid ligator with a limiting structure, characterized in that, Comprising A hemorrhoid ligation anastomat part (10) comprising a handle part (110) and a ligation tube part (120), the ligation tube part (120) is installed at the front end of the handle part (110); A limiting assembly (20) comprising two arc-shaped clamping plates (210), the top end of each of the two arc-shaped clamping plates (210) is fixedly connected with an ear plate (220), a rotating shaft (230) is rotatably arranged between the two ear plates (220), a spring member (240) is sleeved on the rotating shaft (230), and the extension end of the spring member (240) is in contact with the opposite surface of the two ear plates (220), and the two arc-shaped clamping plates (210) are detachably clamped on the outer side of the ligation tube part (120).

2. The hemorrhoid ligator with a limiting structure according to claim 1, characterized in that, The side of each of the two arc-shaped clamping plates (210) away from the handle part (110) is fixedly connected with an extension plate (260).

3. The hemorrhoid ligator with a limiting structure according to claim 2, characterized in that, The side of each of the two extension plates (260) away from the arc-shaped clamping plate (210) is pasted with a flexible pad (270).

4. The hemorrhoid ligator with a limiting structure according to claim 1, characterized in that, The inner wall of each of the two arc-shaped clamping plates (210) is pasted with an elastic pad (250).

5. The hemorrhoid ligator with a limiting structure according to claim 1, characterized in that, The spring member (240) comprises a spring (241) and a support rod (242), the spring (241) is sleeved on the outer side of the rotating shaft (230), one end of each of the two support rods (242) is connected with the two ends of the spring (241), and the other end of each of the two support rods (242) is obliquely arranged and in contact with the opposite surface of the two ear plates (220).

6. The hemorrhoid ligator with a limiting structure according to claim 1, characterized in that, The top end of each of the two ear plates (220) is sleeved with an anti-skid sleeve (280).

7. The hemorrhoid ligator with a limiting structure according to claim 1, characterized in that, The top end of the handle part (110) is provided with a protruding block (130), and the two arc-shaped clamping plates (210) are clamped on the protruding block (130).

8. The hemorrhoid ligator with a limiting structure according to claim 1, characterized in that, Each of the two ear plates (220) is provided with a through slot, and the rotating shaft (230) is rotatably connected with the through slot.

Citation Information

Patent Citations

  • Automatic haemorrhoids loop ligature anastomat

    CN215503223U