Novel internal hemorrhoid loop ligature device

Abstract

The utility model discloses a novel internal hemorrhoid loop ligature device, which relates to the technical field of medical apparatus and instruments and comprises a loop ligature device body, a negative pressure connecting pipe is mounted on the bottom wall of the loop ligature device body, a gun barrel is mounted on the loop ligature device body, and a thread pushing pipe is movably mounted on the inner wall of the gun barrel. The loop ligature device comprises a loop ligature device body, a line pushing pipe is arranged on the loop ligature device body, a line pushing pipe control switch for controlling the line pushing pipe to move is installed on the loop ligature device body, a pressure switch is further arranged on the outer wall of the loop ligature device body, a bent line pushing pipe is arranged at the end of the line pushing pipe, and the bent line pushing pipe is installed on the line pushing pipe through a dismounting mechanism. The internal hemorrhoid loop ligature of a patient can be conveniently carried out through the arranged bent line pushing pipe, the bent line pushing pipe can be replaced through the arranged dismounting mechanism, the bent line pushing pipes with different bending angles can be selected, and therefore the internal hemorrhoid loop ligature device is suitable for different patients and convenient to use. The defects of narrow operation in the anus space, rectum relaxation, uncomfortable direction and high ligation difficulty are overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a novel internal hemorrhoid ligation device. Background Art

[0002] The hemorrhoid ligation device is used in minimally invasive RPH surgery for hemorrhoids. It is mainly suitable for stage II and III hemorrhoids, mainly internal hemorrhoids. When using it, aim the head of the ligation device at the hemorrhoids that need to be treated, use negative pressure to suck the hemorrhoids into the head of the ligation device, fire the ligation device, and use a rubber ring to ligate the root of the hemorrhoids, causing local ischemia, necrosis, and natural shedding of the hemorrhoids to achieve the treatment goal.

[0003] The angle of the wire pushing tube on the current ligation devices on the market is generally straight (i.e. 180° horizontal). The angle of the wire pushing tube is too straight, and the anal space is narrow, the rectum is loose, and the direction is awkward, which makes ligation more difficult. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art and provides a novel internal hemorrhoid ligation device.

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

[0006] A novel internal hemorrhoid ligation device comprises a ligation device body, a negative pressure connecting pipe is installed on the bottom wall of the ligation device body, a gun barrel is installed on the ligation device body, a wire pushing tube is movably installed on the inner wall of the gun barrel, a wire pushing tube control switch for controlling the wire pushing tube to move is installed on the ligation device body, a pressure switch is also arranged on the outer wall of the ligation device body, a curved wire pushing tube is arranged at the end of the wire pushing tube, and the curved wire pushing tube is installed on the wire pushing tube through a disassembly mechanism;

[0007] A sliding groove is provided on the outer wall of the wire pushing tube, a pushing rod is fixedly connected to the inner wall of the gun barrel, an arc-shaped pushing plate is fixedly connected to one end of the pushing rod away from the sliding groove, and the outer wall of the arc-shaped pushing plate fits with the outer wall of the curved wire pushing tube.

[0008] The above technical solution further includes: the pushing rod includes a first connecting rod, an elastic rod and a second connecting rod, the end wall of the first connecting rod is fixedly connected to the inner wall of the slide groove, the end of the first connecting rod away from the slide groove is fixedly connected to the end wall of the elastic rod, the end of the elastic rod away from the first connecting rod is fixedly connected to the outer wall of the second connecting rod, and the end of the second connecting rod away from the first connecting rod is fixedly connected to the outer wall of the arc-shaped push plate.

[0009] The disassembly mechanism comprises two sets of fixing components.

[0010] One group of the fixed components includes a pressing rod and a socket that movably penetrate the outer wall of the curved wire pushing tube, a movable plate is fixedly connected to the bottom wall of the pressing rod, the bottom wall of the socket is fixedly connected to the outer wall of the movable plate, a socket is opened on the inner wall of the wire pushing tube, and the plug rod is movably inserted into the inside of the socket.

[0011] The outer wall of the movable plate is fixedly connected with a compression spring, and one end of the compression spring away from the movable plate is fixedly connected to the inner wall of the curved wire pushing tube.

[0012] The inner wall of the wire pushing tube is provided with a limiting groove, the limiting groove is connected to the insertion hole, the outer wall of the curved wire pushing tube is fixedly connected to a limiting block, the pressing rod and the insertion rod movably pass through the limiting block, and the limiting block is slidably connected to the inside of the limiting groove.

[0013] A pressure gauge is fixedly mounted on the outer wall of the ligation device body, and an air inlet of the pressure gauge is mounted inside the wire pushing tube.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, the curved wire pushing tube can be conveniently used to ligate the internal hemorrhoids of the patient, and the disassembly mechanism can be used to replace the curved wire pushing tube, so that curved wire pushing tubes with different bending angles can be selected, so as to be suitable for different patients and improve the defects of narrow anal space, loose rectum, awkward direction and difficulty in ligation.

[0016] 2. In the present invention, the pressure in the wire pushing tube can be monitored by means of a pressure gauge, so that the force during ligation or the amount of tissue sucked in can be displayed, thereby improving the effect of ligation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a novel internal hemorrhoid ligation device proposed by the utility model;

[0018] Figure 2 It is a schematic diagram of the first partial cross-sectional structure of a novel internal hemorrhoid ligation device;

[0019] Figure 3 It is a second partial cross-sectional structural schematic diagram of a novel internal hemorrhoid ligation device;

[0020] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0021] In the figure:

[0022] 10. The ligation device body; 11. The pressure switch; 12. The push-wire tube control switch; 13. The gun barrel; 14. The push-wire tube; 15. The negative pressure connecting tube; 20. The pressure gauge; 30. The curved push-wire tube; 31. The limit block; 32. The pressing rod; 33. The moving plate; 34. The insert rod; 35. The compression spring; 36. The limit groove; 37. The plug hole; 41. The slide groove; 421. The first connecting rod; 422. The elastic rod; 423. The second connecting rod; 424. The arc-shaped push plate. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Embodiment 1

[0025] Refer to the attached Figure 1-4 The utility model proposes a novel internal hemorrhoid ligation device, comprising a ligation device body 10, a negative pressure connecting tube 15 (the negative pressure connecting tube 15 is used to connect a negative pressure device) is installed on the bottom wall of the ligation device body 10, a gun barrel 13 is installed on the ligation device body 10, a wire pushing tube 14 is movably installed on the inner wall of the gun barrel 13, a wire pushing tube control switch 12 for controlling the movement of the wire pushing tube 14 is installed on the ligation device body 10, and a pressure switch 11 (the pressure switch 11 is used to control the opening and closing of the negative pressure in the wire pushing tube 14) is also arranged on the outer wall of the ligation device body 10; wherein, the ligation device body 10, the pressure switch 11, the wire pushing tube control switch 12, the gun barrel 13, the wire pushing tube 14 and the negative pressure connecting tube 15 are original structural components on the existing internal hemorrhoid ligation device, and their internal structures are not repeated here.

[0026] A curved wire pushing tube 30 is disposed at the end of the wire pushing tube 14; wherein the angle of the curved wire pushing tube 30 can be between 0° and 90°.

[0027] The curved wire pushing tube 30 is installed on the wire pushing tube 14 through a disassembly mechanism; wherein, the curved wire pushing tube 30 can be replaced through the provided disassembly mechanism, thereby replacing the curved wire pushing tube 30 with different bending angles, which is suitable for use by different patients.

[0028] A slide groove 41 is provided on the outer wall of the wire pushing tube 14, and a push rod is fixedly connected to the inner wall of the gun barrel 13. An arc-shaped push plate 424 is fixedly connected to the end of the push rod away from the slide groove 41, and the outer wall of the arc-shaped push plate 424 fits the outer wall of the curved wire pushing tube 30; when the wire pushing tube 14 is driven to move, the wire pushing tube 14 drives the curved wire pushing tube 30 to move, so that the arc-shaped push plate 424 can push off the rubber band outside the curved wire pushing tube 30.

[0029] The pushing rod includes a first connecting rod 421, an elastic rod 422 and a second connecting rod 423, the end wall of the first connecting rod 421 is fixedly connected to the inner wall of the slide groove 41, the end of the first connecting rod 421 away from the slide groove 41 is fixedly connected to the end wall of the elastic rod 422, the end of the elastic rod 422 away from the first connecting rod 421 is fixedly connected to the outer wall of the second connecting rod 423, and the end of the second connecting rod 423 away from the first connecting rod 421 is fixedly connected to the outer wall of the arc-shaped push plate 424; wherein, the initial state of the elastic rod 422 is horizontal, and when it is used in conjunction with the first connecting rod 421 and the second connecting rod 423, the angle between the first connecting rod 421 and the second connecting rod 423 can be relatively deflected by the set elastic rod 422, so as to adapt to the bending angle of the curved wire pushing tube 30, so that the curved push plate 424 always remains in a position close to the outer wall of the curved wire pushing tube 30, thereby making it possible to push off the rubber band on the curved wire pushing tube 30.

[0030] The disassembly mechanism includes two sets of fixing components; wherein, the bent wire pushing tube 30 can be disassembled and replaced through the provided disassembly components.

[0031] One set of fixed components includes a pressing rod 32 and a socket 37 that movably penetrate the outer wall of the curved wire pushing tube 30, a movable plate 33 is fixedly connected to the bottom wall of the pressing rod 32, and the bottom wall of the socket 37 is fixedly connected to the outer wall of the movable plate 33. The inner wall of the wire pushing tube 14 is provided with a socket 37, and the plug rod 34 is movably plugged into the inside of the socket 37; wherein, when the curved wire pushing tube 30 is disassembled, as shown in FIG. Figure 4 , the pressing rod 32 can be pressed, the pressing rod 32 drives the movable plate 33 to move downward, and the movable plate 33 drives the insertion rod 34 to move downward, so that the insertion rod 34 is moved out from the inside of the insertion hole 37, and then the curved wire pushing tube 30 can be pulled outward to pull the curved wire pushing tube 30 out of the wire pushing tube 14.

[0032] The outer wall of the movable plate 33 is fixedly connected with a compression spring 35, and one end of the compression spring 35 away from the movable plate 33 is fixedly connected to the inner wall of the curved wire pushing tube 30; wherein, the compression spring 35 is provided to improve the stability of the insertion rod 34 in the insertion hole 37, thereby improving the stability of the curved wire pushing tube 30 when ligating internal hemorrhoids.

[0033] A limiting groove 36 is provided on the inner wall of the wire pushing tube 14, and the limiting groove 36 is connected to the insertion hole 37. A limiting block 31 is fixedly connected to the outer wall of the curved wire pushing tube 30, and the pressing rod 32 and the insertion rod 34 movably penetrate the limiting block 31, and the limiting block 31 is slidably connected to the inside of the limiting groove 36; wherein, in order to facilitate the rapid fixing of the curved wire pushing tube 30 when installing the curved wire pushing tube 30, the limiting block 31 and the limiting groove 36 are provided here. When installing the curved wire pushing tube 30, it is only necessary to align the two limiting blocks 31 with the two limiting grooves 36 and insert them, so that the insertion rod 34 can be accurately inserted into the insertion hole 37, and the installation process is convenient.

[0034] A pressure gauge 20 is fixedly mounted on the outer wall of the ligation device body 10, and the air inlet of the pressure gauge 20 is installed inside the wire pushing tube 14; wherein, the pressure gauge can be set to monitor the pressure inside the wire pushing tube, thereby displaying the strength of the ligation or the amount of tissue sucked in, thereby improving the ligation effect.

[0035] In this embodiment, the working principle of the device is as follows: when using the device, a curved wire pushing tube 30 with a suitable bending angle is selected, and then the curved wire pushing tube 30 is installed at the end of the wire pushing tube 14, and then the internal hemorrhoids can be ligated. During the ligation process, the strength of the ligation or the amount of tissue sucked in can be judged by observing the pressure gauge 20, thereby improving the ligation effect;

[0036] The device is suitable for different patients by selecting the curved wire pushing tube 30 with different bending angles, thereby improving the defects of narrow anal space, loose rectum, awkward direction and difficult ligation.

[0037] 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 novel internal hemorrhoid ligation device, comprising a ligation device body (10), a negative pressure connecting pipe (15) is installed on the bottom wall of the ligation device body (10), a gun barrel (13) is installed on the ligation device body (10), a wire pushing tube (14) is movably installed on the inner wall of the gun barrel (13), a wire pushing tube control switch (12) for controlling the movement of the wire pushing tube (14) is installed on the ligation device body (10), and a pressure switch (11) is also arranged on the outer wall of the ligation device body (10), characterized in that: A curved wire pushing tube (30) is provided at the end of the wire pushing tube (14), and the curved wire pushing tube (30) is installed on the wire pushing tube (14) through a disassembly mechanism; The outer wall of the wire pushing tube (14) is provided with a slide groove (41), the inner wall of the gun barrel (13) is fixedly connected with a push rod, and the end of the push rod away from the slide groove (41) is fixedly connected with an arc-shaped push plate (424), and the outer wall of the arc-shaped push plate (424) is in contact with the outer wall of the curved wire pushing tube (30).

2. A novel internal hemorrhoid ligation device according to claim 1, characterized in that: The pushing rod comprises a first connecting rod (421), an elastic rod (422) and a second connecting rod (423), the end wall of the first connecting rod (421) is fixedly connected to the inner wall of the slide groove (41), one end of the first connecting rod (421) away from the slide groove (41) is fixedly connected to the end wall of the elastic rod (422), one end of the elastic rod (422) away from the first connecting rod (421) is fixedly connected to the outer wall of the second connecting rod (423), and one end of the second connecting rod (423) away from the first connecting rod (421) is fixedly connected to the outer wall of the arc-shaped push plate (424).

3. A novel internal hemorrhoid ligation device according to claim 2, characterized in that: The disassembly mechanism comprises two sets of fixing components.

4. A novel internal hemorrhoid ligation device according to claim 3, characterized in that: One group of the fixed components comprises a pressing rod (32) and a plug hole (37) which movably penetrate the outer wall of the curved wire pushing tube (30); a movable plate (33) is fixedly connected to the bottom wall of the pressing rod (32); the bottom wall of the plug hole (37) is fixedly connected to the outer wall of the movable plate (33); the inner wall of the wire pushing tube (14) is provided with a plug hole (37); and the plug rod (34) is movably plugged into the inside of the plug hole (37).

5. A novel internal hemorrhoid ligation device according to claim 4, characterized in that: A compression spring (35) is fixedly connected to the outer wall of the movable plate (33), and one end of the compression spring (35) away from the movable plate (33) is fixedly connected to the inner wall of the curved wire pushing tube (30).

6. A novel internal hemorrhoid ligation device according to claim 5, characterized in that: The inner wall of the wire pushing tube (14) is provided with a limiting groove (36), the limiting groove (36) is communicated with the insertion hole (37), the outer wall of the curved wire pushing tube (30) is fixedly connected with a limiting block (31), the pressing rod (32) and the inserting rod (34) movably penetrate the limiting block (31), and the limiting block (31) is slidably connected to the inside of the limiting groove (36).

7. A novel internal hemorrhoid ligation device according to claim 1, characterized in that: A pressure gauge (20) is fixedly mounted on the outer wall of the ligation device body (10), and an air inlet of the pressure gauge (20) is mounted inside the wire pushing tube (14).

Images