A switching mechanism for elastic thread of an anorectal ligation device

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, concretely relates to a kind of elastic line switching mechanism for anorectal ligation device, including shell, shell sliding installation has first mounting plate, the first mounting plate is driven to move by first drive component, two above first hooks are equipped on the first mounting plate, the first hook bottom is equipped with first gap, the first hook is used to hook the first knot of elastic line, the shell rotation is equipped with the second hook by second drive component drive rotation, the second hook is located below the first gap, the first knot on the first hook is hooked by the rotation of the second hook for passing through first gap.This utility model sets up two above first hooks below first mounting plate, the one end of multiple elastic lines is hung on first hook respectively, first drive component drives first hook to move in the process, second hook successively hooks different elastic line, realizes the effect of switching elastic line.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to an elastic cord switching mechanism for an anorectal ligator. Background Technology

[0002] The rectal ligator is an important medical device used to treat diseases such as hemorrhoids. The main working principle of the rectal ligator is to form a tight loop around the diseased tissue using the ligating head, thereby blocking blood flow to the diseased tissue, causing it to necrose and eventually detach. The advantages of using this device for ligation are its ease of operation and low probability of complications.

[0003] In the process of ligation using a banding device, multiple lesions typically need to be ligated. Looking at the various existing solutions for anorectal banding devices, most can only be used for a single ligation. When ligating multiple hemorrhoid lesions in the same patient, multiple banding devices are required, resulting in wasted resources and significantly increased treatment costs. Therefore, it is necessary to improve existing technologies to address these technical problems. Utility Model Content

[0004] The purpose of this invention is to provide an elastic cord switching mechanism for anorectal ligation devices to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows:

[0006] A spring-loaded switching mechanism for an anorectal ligator includes a housing. A first mounting plate is slidably mounted on the housing. The first mounting plate is driven to move by a first driving component. The first mounting plate is provided with two or more first hooks. Each of the first hooks has a first notch at its bottom. The first hooks are used to hook the first knot of the spring-loaded thread. The housing is rotatably provided with a second hook driven to rotate by a second driving component. The second hook is located below the first notch. The second hook rotates to pass through the first notch and hook the first knot on the first hook.

[0007] As a further improvement, the first drive assembly includes a rack slidably disposed on the housing, a sliding groove provided on the inner sidewall of the housing, the rack slidably disposed in the sliding groove, a first mounting plate fixedly connected to the rack, a first motor fixedly mounted on the housing, a first gear fixedly mounted on the output shaft of the first motor, and the first gear meshing with the rack.

[0008] As a further improvement, one side of the first mounting plate is fixedly connected to the rack, and the other side of the first mounting plate is fixedly provided with the first hook, which is vertically arranged and spaced back and forth.

[0009] Both the first hook and the second hook include a rod and a hook. The bottom of the rod of the first hook is provided with the first notch running through it from front to back. The bottom of the rod of the first hook extends backward on both sides of the first notch and is provided with hooks.

[0010] The top end of the rod of the second hook is connected to a hook that extends backward, and the top end of the hook of the second hook is lower than the top end of the first hook and higher than the bottom end of the first hook.

[0011] As a further improvement, the width of the first notch gradually decreases from the bottom to the top.

[0012] As a further improvement, an upper plate and a lower plate are fixedly provided on the housing, and the sliding groove is formed between the upper plate and the lower plate. A baffle is detachably installed on the housing, and the baffle is located at the opening of the sliding groove and slides with the rack.

[0013] The upper plate is provided with a transmission notch, and the first gear is located within the transmission notch.

[0014] As a further improvement, the lower part of the side of the first mounting plate connected to the rack is slidably engaged with the lower plate.

[0015] As a further improvement, the housing is rotatably mounted with a winding roller, the winding roller has a winding groove on its circumferential surface, the second hook is fixedly installed at the bottom of the winding groove, and one end of the winding roller is fixedly connected to a first bevel gear.

[0016] The second drive assembly includes a second motor mounted on the housing, the second motor being driven by a second bevel gear, the first bevel gear and the second bevel gear meshing together.

[0017] Due to the adoption of the above technical solution, the beneficial technical effects of this utility model are as follows:

[0018] This utility model provides an elastic cord switching mechanism for anorectal ligation devices. By setting two or more first hooks below the first mounting plate, one end of multiple elastic cords is hung on the first hooks. During the movement of the first hooks driven by the first drive component, the second hooks hook different elastic cords, thereby achieving the effect of switching elastic cords. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the first driving component of this utility model;

[0021] Figure 3 This is a schematic diagram of the assembly of the elastic cord and the first hook of this utility model;

[0022] Figure 4 This is an assembly diagram of the first hook and the second hook of this utility model.

[0023] Wherein: 1-housing, 2-first mounting plate, 3-first drive assembly, 301-rack, 302-first motor, 303-first gear, 304-upper plate, 305-lower plate, 306-baffle, 4-first hook, 401-first notch, 5-elastic line, 501-first knot, 6-winding roller, 601-winding groove, 7-second hook, 8-second drive assembly, 801-first bevel gear, 802-second motor, 803-second bevel gear. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0025] like Figure 1-4 As shown, an elastic cord switching mechanism for an anorectal ligator includes a housing 1, on which a first mounting plate 2 is slidably mounted. The first mounting plate 2 is driven to move by a first driving component 3. The first mounting plate 2 is provided with two or more first hooks 4. Each of the first hooks 4 has a first notch 401 at its bottom. The first hooks 4 are used to hook the first knot 501 of the elastic cord 5. In specific use, the first knot 501 of the elastic cord 5 is hung on the first hook 4.

[0026] The housing 1 is rotatably equipped with a second hook 7 driven to rotate by a second drive assembly 8. The second hook 7 is located below the first notch 401. When a first hook 4 is above the second hook 7, as the second hook 7 rotates, the second hook 7 passes through the first notch 401 and hooks the first knot 501 on the first hook 4. Then, other operations such as tightening and cutting the line are performed. After the operation is completed, the first mounting plate 2 is moved by the first drive assembly 3 to move the other first hook 4 above the second hook 7. The second hook 7 is controlled to rotate and hook the elastic line 5 on the first hook 4 above it, thereby realizing the switching of the elastic line 5.

[0027] In this embodiment, the first driving assembly 3 includes a rack 301 slidably mounted on the housing 1. A sliding groove is provided on the inner wall of the housing 1, and the rack 301 is slidably mounted within the sliding groove. A first mounting plate 2 is fixedly connected to the rack 301. A first motor 302 is fixedly mounted on the housing 1, and a first gear 303 is fixedly mounted on the output shaft of the first motor 302. The first gear 303 meshes with the rack 301. When the first motor 302 operates, it drives the first gear 303 to rotate, thereby moving the rack 301, and further moving the first mounting plate 2 and the first hook 4.

[0028] In this embodiment, one side of the first mounting plate 2 is fixedly connected to the rack 301, and the bottom of the other side of the first mounting plate 2 is fixedly provided with a first hook 4. The first hook 4 is arranged vertically and spaced back and forth.

[0029] Both the first hook 4 and the second hook 7 include a rod and a hook. The bottom of the rod of the first hook 4 is provided with a first notch 401 extending through the front and rear. The bottom of the rod of the first hook 4 is provided with hooks extending backward on both sides of the first notch 401.

[0030] The top of the rod of the second hook 7 is connected to a rearwardly extending hook portion. The top of the hook portion of the second hook 7 is lower than the top of the first hook 4 but higher than the bottom of the first hook 4, specifically as follows: Figure 4 As shown, the second hook 7 rotates clockwise, passes through the first notch 401, and can hook the first knot 501 on the first hook 4.

[0031] In this embodiment, the width of the first notch 401 gradually decreases from the bottom to the top, making the lower part of the first knot 501 corresponding to the first notch 401 longer, which makes it easier for the second hook 7 to hook onto it.

[0032] In this embodiment, an upper plate 304 and a lower plate 305 are fixedly provided on the housing 1, and a sliding groove is formed between the upper plate 304 and the lower plate 305. A baffle 306 is detachably installed on the housing 1. The baffle 306 is located at the opening of the sliding groove and slides with the rack 301. The upper plate 304, the lower plate 305 and the baffle 306 cooperate to guide the sliding of the rack 301, so that the rack 301 slides stably and does not deviate.

[0033] The upper plate 401 is provided with a transmission notch, and the first gear 303 is located in the transmission notch, which facilitates the first gear 303 to form a meshing relationship with the rack 301 in the sliding groove.

[0034] In this embodiment, the lower part of the side where the first mounting plate 2 is connected to the rack 301 slides with the lower plate 402. The lower plate 402 and the first mounting plate 2 provide a certain support, which helps the first mounting plate 2 slide stably.

[0035] In this embodiment, a winding roller 6 is rotatably mounted on the housing 1. A winding groove 601 is provided on the circumferential surface of the winding roller 6. A second hook 7 is fixedly installed at the bottom of the winding groove 601. A first bevel gear 801 is fixedly connected to one end of the winding roller 6.

[0036] The second drive assembly 8 includes a second motor 802 mounted on the housing 1. The second motor 802 drives a second bevel gear 803, and the first bevel gear 801 and the second bevel gear 803 mesh with each other.

[0037] When the second motor 802 is running, it drives the second bevel gear 803 to rotate, which in turn drives the first bevel gear 801 and the winding roller 6 to rotate, further causing the second hook 7 to rotate.

[0038] For clarity and convenience, such as Figure 1 The orientation shown is defined by directions such as up, down, left, and right. In this embodiment, during use, the second motor 802 drives the second bevel gear 803 to rotate, which in turn drives the first bevel gear 801 and the winding roller 6 to rotate, thereby enabling the second hook 7 to hook the first knot 501 hanging on the first hook 4. The elastic cord 5 is gradually wound into the winding groove 601 of the winding roller 6. The first motor 302 drives the first gear 303 to rotate, which in turn drives the rack 301 and the first mounting plate 2 to move to the left along the sliding groove, causing the first mounting plate 2 to move to the left and positioning the second hook 4 above the second hook 7. By repeating the above steps, different elastic cords 5 can be switched to perform ligation operations on different lesions.

[0039] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A spring-loaded switching mechanism for an anorectal ligator, comprising a housing, characterized in that, The housing is slidably mounted with a first mounting plate, which is driven to move by a first driving component. The first mounting plate is provided with two or more first hooks, each with a first notch at its bottom. The first hooks are used to hook the first knot of the elastic cord. The housing is rotatably provided with a second hook driven to rotate by a second driving component. The second hook is located below the first notch, and the second hook rotates to pass through the first notch and hook the first knot on the first hook.

2. The elastic thread switching mechanism for the rectal ligator according to claim 1, characterized in that, The first drive assembly includes a rack slidably disposed on the housing, a sliding groove provided on the inner side wall of the housing, the rack slidably disposed in the sliding groove, a first mounting plate fixedly connected to the rack, a first motor fixedly mounted on the housing, a first gear fixedly mounted on the output shaft of the first motor, and the first gear meshing with the rack.

3. The elastic thread switching mechanism for the rectal ligator according to claim 2, characterized in that, One side of the first mounting plate is fixedly connected to the rack, and the other side of the first mounting plate is fixedly provided with the first hook. The first hook is arranged vertically and spaced back and forth. Both the first hook and the second hook include a rod and a hook. The bottom of the rod of the first hook is provided with the first notch running through it from front to back. The bottom of the rod of the first hook extends backward on both sides of the first notch and is provided with hooks. The top end of the rod of the second hook is connected to a hook that extends backward, and the top end of the hook of the second hook is lower than the top end of the first hook and higher than the bottom end of the first hook.

4. The elastic thread switching mechanism for the rectal ligator according to claim 3, characterized in that, The width of the first gap gradually decreases from the bottom to the top.

5. The elastic thread switching mechanism for the rectal ligator according to any one of claims 2 to 4, characterized in that, An upper plate and a lower plate are fixedly provided on the housing, and a sliding groove is formed between the upper plate and the lower plate. A baffle is detachably installed on the housing, and the baffle is located at the opening of the sliding groove and slides with the rack. The upper plate is provided with a transmission notch, and the first gear is located within the transmission notch.

6. The elastic thread switching mechanism for the rectal ligator according to claim 5, characterized in that, The lower part of the side of the first mounting plate connected to the rack slides in cooperation with the lower plate.

7. The elastic thread switching mechanism for the rectal ligator according to claim 1, characterized in that, The housing is rotatably mounted with a winding roller, and the winding roller has a winding groove on its circumference. The second hook is fixedly installed at the bottom of the winding groove, and a first bevel gear is fixedly connected to one end of the winding roller. The second drive assembly includes a second motor mounted on the housing, the second motor being driven by a second bevel gear, the first bevel gear and the second bevel gear meshing together.

Images