Front swivel assembly of haemorrhoids loop ligature device

Abstract

The utility model relates to the field of haemorrhoids loop ligature devices, in particular to a front swivel assembly of a haemorrhoids loop ligature device, a first threaded column is fixedly arranged on one side of a haemorrhoids loop ligature device body, a second threaded column corresponding to the first threaded column is arranged at the mounting end of the front swivel assembly in a matched mode, and the second threaded column is mounted on the first threaded column; the first threaded column is sleeved with a threaded sleeve in a matched mode, a limiting plate is arranged at the top of the threaded sleeve, a limiting cavity is downwards formed in the middle of the limiting plate, and a limiting column corresponding to the limiting cavity is movably arranged above the haemorrhoids loop ligature device body. According to the front swivel assembly, the first threaded column and the second threaded column are aligned, then the threaded sleeve is rotated to the joint of the first threaded column and the second threaded column, clamping between the limiting column on the torsion spring and the limiting cavity in the threaded sleeve is matched, installation of the front swivel assembly can be completed, a large number of connecting pieces are not needed in the installation mode, and the front swivel assembly is quite rapid and convenient to use. And the use of a user is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of hemorrhoid ligation devices, in particular to a front rotating head component of a hemorrhoid ligation device. Background Art

[0002] Hemorrhoid ligation device is a medical device used to treat hemorrhoids. It uses the principle of negative pressure to place a special rubber ring or elastic line on the base of the hemorrhoids or the mucosa above the hemorrhoids at an appropriate position through a special ligation device. After the rubber ring or elastic line is ligated, its tightening effect can block the blood supply of the hemorrhoids or reduce venous reflux, causing ischemia, atrophy, and necrosis of the hemorrhoids. Eventually, the ligated tissue gradually falls off, and the wound tissue is repaired and healed.

[0003] The front rotating head assembly is a key part of the hemorrhoidal ligation device. It enables the ligation operation to be simple and effective by accurately guiding and supporting the ligation process and providing flexible angle adjustment. In some cases, in order to replace the ligation tube, clean or repair, the front rotating head assembly needs to be removed from the hemorrhoidal ligation device. Currently, most of the front rotating head assemblies on the market are installed on the hemorrhoidal ligation device through a large number of bolts and connectors. This installation method is very troublesome, which reduces the user's disassembly and assembly speed of the front rotating head assembly and is not conducive to user use. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a front rotating head assembly of a hemorrhoid ligation device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A front rotating head assembly of a hemorrhoid ligation device comprises a hemorrhoid ligation device body and a front rotating head assembly, wherein a first threaded column is fixedly provided on one side of the hemorrhoid ligation device body, a second threaded column is adapted to be provided at the mounting end of the front rotating head assembly corresponding to the first threaded column, and the second threaded column is mounted on the first threaded column; a threaded sleeve is adapted to be provided on the first threaded column, a limiting plate is provided on the top of the threaded sleeve, a limiting cavity is downwardly provided in the middle of the limiting plate, and a limiting column is movably provided above the hemorrhoid ligation device body corresponding to the limiting cavity.

[0007] In addition, a preferred structure is that a thread is formed on the inner side of the threaded sleeve, and the thread on the inner side of the threaded sleeve is adapted to the first threaded column and the second threaded column.

[0008] In addition, a preferred structure is that when the first threaded column and the second threaded column are aligned, the threads on the outside thereof are merged into a continuous thread, and the threaded sleeve is located outside the first threaded column and the second threaded column and moves.

[0009] In addition, a preferred structure is that a limit piece is provided on the fixed sleeve located behind the second threaded column on the front rotating head assembly. When the threaded sleeve rotates to the limit piece, the threaded sleeve is located at the connection between the first threaded column and the second threaded column, and the limit plate is located directly above the threaded sleeve.

[0010] In addition, a preferred structure is that a mounting seat is provided above the hemorrhoid ligation device body, a torsion spring is installed in front of the mounting seat, and a limiting column is fixedly provided on the free end of the torsion spring.

[0011] In addition, a preferred structure is that the limiting column is adapted to the limiting cavity, and elastic pads are provided on the inner walls of the limiting cavity.

[0012] The beneficial effect of the utility model is as follows: by aligning the first threaded column and the second threaded column, then rotating the threaded sleeve to its connection point, and cooperating with the clamping between the limit column on the torsion spring and the limit cavity on the threaded sleeve, the installation of the front rotating head assembly can be completed. This installation method does not require the use of a large number of connecting parts, is very fast and convenient, and is convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a front rotating head assembly of a hemorrhoid ligation device proposed by the utility model;

[0014] Figure 2 for Figure 1 Enlarged detail of the middle threaded sleeve;

[0015] Figure 3 for Figure 2 Schematic diagram of the structure when the free end of the torsion spring is moved upward;

[0016] Figure 4 It is a structural schematic diagram of a first threaded column, a second threaded column and a threaded sleeve of a front rotating head assembly of a hemorrhoid ligation device proposed by the utility model when they are separated;

[0017] Figure 5 The utility model is a schematic structural diagram of a threaded sleeve of a front rotating head assembly of a hemorrhoid ligation device when the threaded sleeve is located on a first threaded column.

[0018] In the figure: 1 is a hemorrhoid ligation device body, 11 is a first threaded column, 2 is a front rotating head assembly, 21 is a second threaded column, 22 is a limiting member, 3 is a mounting seat, 31 is a torsion spring, 32 is a limiting column, 4 is a threaded sleeve, 41 is a limiting plate, and 42 is a limiting cavity. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-5 A front rotating head assembly of a hemorrhoid ligation device comprises a hemorrhoid ligation device body 1 and a front rotating head assembly 2, a first threaded column 11 is fixedly provided on one side of the hemorrhoid ligation device body 1, a second threaded column 21 is adapted to be provided at the mounting end of the front rotating head assembly 2 corresponding to the first threaded column 11, and the second threaded column 21 is installed on the first threaded column 11; a threaded sleeve 4 is adapted to be provided on the first threaded column 11, a limiting plate 41 is provided on the top of the threaded sleeve 4, a limiting cavity 42 is downwardly provided in the middle of the limiting plate 41, and a limiting column 32 is movably provided above the hemorrhoid ligation device body 1 corresponding to the limiting cavity 42.

[0021] The inner side of the threaded sleeve 4 is provided with threads, and the threads on the inner side of the threaded sleeve 4 are adapted to the first threaded column 11 and the second threaded column 21. By setting the threaded sleeve 4, the first threaded column 11 and the second threaded column 21 can be fixedly connected together.

[0022] When the first threaded column 11 and the second threaded column 21 are aligned, the threads on their outer sides are combined into a continuous thread, and the threaded sleeve 4 is located outside the first threaded column 11 and the second threaded column 21 and moves. When the first threaded column 11 and the second threaded column 21 are aligned, the two threaded columns can be combined into a complete threaded column, and the threaded sleeve 4 can move on it. When the threaded sleeve 4 moves to the connection point, the fixed connection can be completed.

[0023] Among them, a stopper 22 is fixedly provided on the front rotating head assembly 3 at the rear of the second threaded column 21, and when the threaded sleeve 4 rotates to the stopper 22, the threaded sleeve 4 is located at the connection between the first threaded column 11 and the second threaded column 21, and the stopper plate 41 is located directly above the threaded sleeve 4. Through the setting of the stopper 22, the threaded sleeve 4 can be accurately moved, thereby preventing the threaded sleeve 4 from moving to an incorrect position, which causes an unstable connection.

[0024] Among them, a mounting seat 3 is arranged above the hemorrhoid ligation device body 1, a torsion spring 31 is installed in front of the mounting seat 3, and a limiting column 32 is fixedly arranged on the free end of the torsion spring 31. It is worth noting that the mounting seat 3 and the torsion spring 31 are prior art, so they are not described in detail in this technical solution. The free end of the torsion spring 31 is located at the limiting cavity 42 under normal conditions, so the limiting column 32 is located in the limiting cavity 42 under normal conditions, and will only move upward when it is subjected to external force. And only when the threaded sleeve 4 contacts the limiting member 22, the limiting column 32 can be located in the limiting cavity 42.

[0025] The limiting column 32 is adapted to the limiting cavity 42, and an elastic pad is provided on the inner wall of the limiting cavity 42. The elastic pad can enhance the friction of the limiting column 32 in the limiting cavity 42, thereby preventing the limiting column 32 from falling off from the limiting cavity 42.

[0026] In this embodiment, a first threaded column 11 is fixedly provided on one side of the hemorrhoid ligation device body 1, and a second threaded column 21 is adapted to be provided on the mounting end of the front rotating head assembly 2 corresponding to the first threaded column 11, and the second threaded column 21 is installed on the first threaded column 11. A threaded sleeve 4 is adapted to be provided on the first threaded column 11, and a limiting plate 41 is provided on the top of the threaded sleeve 4, and a limiting cavity 42 is provided downwardly in the middle of the limiting plate 41, and a limiting column 32 is movably provided on the upper side of the hemorrhoid ligation device body 1 corresponding to the limiting cavity 42. It is worth noting that the specific structure of the hemorrhoid ligation device body 1 and the front rotating head assembly 2 and the use thereof are all prior art, and do not belong to the main technical features of the present technical solution, so they will not be elaborated.

[0027] Furthermore, when the user needs to install the front rotating head assembly 2, the threaded sleeve 4 can be rotated to the innermost side of the first threaded column 11, and then the first threaded column 11 can be aligned with the second threaded column 21 (it is necessary to pay attention to keep the angle of the front rotating head assembly 2 on the front side during alignment). After the alignment is completed, the threaded sleeve 4 is rotated to move the threaded sleeve 4 toward the second threaded column 21 until the second threaded sleeve 4 and the limiting member 22 are in contact with each other. It is also worth noting that when performing the above operation, the limiting column 32 at the free end of the torsion spring 31 needs to be manually pushed upward. After completing the above operation, the limiting column 32 is released, and the limiting column 32 can automatically rebound downward through the torsion spring 31. When the limiting column 32 rebounds into the limiting cavity 42, the assembly of the front rotating head assembly 2 is completed.

[0028] Furthermore, when the user needs to remove the front rotating head assembly 2, he only needs to push the limiting column 32 at the free end of the torsion spring 31 upward to make the limiting column 32 leave the limiting cavity 42. Then, the threaded sleeve 4 is moved toward the first threaded column 11 to complete the removal of the front rotating head assembly 2.

[0029] In the utility model, the front rotating head assembly 2 can be installed by aligning the first threaded column 11 and the second threaded column 21, then rotating the threaded sleeve 4 to its connection point, and cooperating with the clamping between the limiting column 32 on the torsion spring 31 and the limiting cavity 42 on the threaded sleeve 4. This installation method does not require the use of a large number of connecting parts, is very fast and convenient, and is convenient for users.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A front rotating head assembly of a hemorrhoid ligation device, comprising a hemorrhoid ligation device body (1) and a front rotating head assembly (2), characterized in that: A first threaded column (11) is fixedly provided on one side of the hemorrhoid ligation device body (1), a second threaded column (21) is adapted to correspond to the first threaded column (11) at the mounting end of the front rotating head assembly (2), and the second threaded column (21) is mounted on the first threaded column (11); The first threaded column (11) is adapted to be provided with a threaded sleeve (4), a limit plate (41) is provided on the top of the threaded sleeve (4), a limit cavity (42) is provided downwardly in the middle of the limit plate (41), and a limit column (32) is movably provided above the hemorrhoid ligation device body (1) corresponding to the limit cavity (42).

2. The front rotating head assembly of the hemorrhoid ligation device according to claim 1, characterized in that: The inner side of the threaded sleeve (4) is provided with threads, and the threads on the inner side of the threaded sleeve (4) are adapted to the first threaded column (11) and the second threaded column (21).

3. The front rotating head assembly of the hemorrhoid ligation device according to claim 2, characterized in that: When the first threaded column (11) and the second threaded column (21) are aligned, the threads on their outer sides merge into a continuous thread, and the threaded sleeve (4) moves outside the first threaded column (11) and the second threaded column (21).

4. The front rotating head assembly of the hemorrhoid ligation device according to claim 3, characterized in that: A limiting piece (22) is provided on the front rotating head assembly (2) at the rear fixed sleeve of the second threaded column (21); when the threaded sleeve (4) rotates to the limiting piece (22), the threaded sleeve (4) is located at the connection between the first threaded column (11) and the second threaded column (21), and the limiting plate (41) is located directly above the threaded sleeve (4).

5. The front rotating head assembly of the hemorrhoid ligation device according to claim 4, characterized in that: A mounting seat (3) is arranged above the hemorrhoid ligation device body (1), a torsion spring (31) is arranged in front of the mounting seat (3), and a limiting column (32) is fixedly arranged on the free end of the torsion spring (31).

6. The front rotating head assembly of the hemorrhoid ligation device according to claim 5, characterized in that: The limiting column (32) is adapted to the limiting cavity (42), and an elastic pad is provided on the inner wall of the limiting cavity (42).

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