Endoscopic submucosal stripping water injection device

Abstract

The utility model relates to the technical field of clinical medical treatment, and provides an endoscopic submucosal stripping water injection device which comprises a stripping tube, a connecting rod is rotatably connected in the stripping tube, the other end of the connecting rod extends to the other side of the stripping tube and is fixedly connected with a mounting seat, a cleaning soft brush is arranged on the mounting seat, and an inner groove is formed in the stripping tube. A connecting block is slidably arranged in the inner groove through a sliding mechanism, the connecting block and the connecting rod are rotationally connected together through a rotating mechanism, and an adsorption mechanism is arranged between the side, away from the cleaning soft brush, of the connecting block and the inner wall of the inner groove. According to the endoscopic submucosal dissection water injection device, medical staff only need to use an operation handle to conduct movement adjustment and rotation adjustment on a connecting rod, so that the cleaning position of a cleaning soft brush can be conveniently adjusted, the cleaning soft brush is made to rotate, and then the cleaning effect on the tissue surface of a focus can be improved; the problem that in the prior art, the cleaning effect on the tissue surface at the focus is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of clinical medicine, and in particular to an endoscopic submucosal stripping water injection device. Background Art

[0002] Endoscopic submucosal dissection (ESD) is a new endoscopic treatment method that has emerged in recent years. It is also a technology with broad prospects for clinical application. It is mostly used to remove lesions with a base area greater than 2 cm, allowing more early gastrointestinal cancers and other lesions to be completely removed at one time under endoscopy, eliminating the pain of open surgery and organ removal. Compared with laparotomy and previous endoscopic treatment methods such as EMR, ESD has the following advantages: 1. Less trauma, 2. Patients can receive multiple treatments at multiple sites, and 3. Doctors can obtain complete tissue pathology specimens for analysis. However, ESD uses more and more expensive instruments, and the stripping process takes a long time. It has been reported that after the lesion is stripped to a certain extent, a snare can be used to snare the lesion for resection and recovery, saving time. It is also called modified ESD.

[0003] After searching, the existing patent (Announcement No.: CN213249525U) discloses a multifunctional water-injectable sleeve dissector for endoscopic submucosal dissection (ESD), characterized in that: the outer tube is a hollow tube, a water injection channel is arranged in the outer tube, one end of the outer tube is rotatably connected to the handle, a slider is slidably arranged on the outer wall of the handle, an electrode is arranged on the slider, the slider is fixedly connected to the inner tube arranged in the outer tube, a pair of parallel conductive wires are arranged in the inner tube, one end of the conductive wire is electrically connected to the electrode, and the other end is closed and connected with the ring, the annular state of the ring is the initial state, a spherical tip is arranged on the ring, the handle can drive the slider, the inner tube and the ring to rotate radially by rotating, the slider can slide, the inner tube can move axially in the outer tube, and the ring can be opened or closed. The utility model can realize the functions of multiple instruments with one device, reduce surgical steps and time, improve efficiency and reduce costs.

[0004] However, in the implementation of relevant technologies, the following problems were found: a water injection channel is set in the outer tube of the above-mentioned stripper, and the water injection channel can be used to inject various submucosal injection fluids into the lesion, and can also be used for functions such as spraying the tissue surface and cleaning the field of vision. However, there will be a lot of tissue debris on the tissue surface of the lesion. The above-mentioned stripper cannot effectively clean the tissue surface by simply relying on the water injection channel to inject water into the tissue surface. The cleaning effect is poor, which will affect the stripping effect of the lesion. Utility Model Content

[0005] The utility model provides an endoscopic submucosal dissection water injection device, which solves the problem of poor cleaning effect on the surface of tissues at the lesion site in the related art.

[0006] The technical solution of the utility model is as follows: An endoscopic submucosal dissection water injection device includes a dissection tube. A water injection channel is opened in the dissection tube, and a water injection pipe is arranged in the water injection channel. A connecting rod is rotatably connected in the dissection tube. One end of the connecting rod extends to one side of the dissection tube and is fixedly connected with an operating handle. The other end of the connecting rod extends to the other side of the dissection tube and is fixedly connected with a mounting seat. A cleaning soft brush is arranged on the mounting seat. An inner groove is opened in the dissection tube, and the connecting rod penetrates through the inner groove. A connecting block is slidably arranged in the inner groove through a sliding mechanism. The connecting block and the connecting rod are rotatably connected together through a rotating mechanism. An adsorption mechanism is arranged between the side of the connecting block away from the cleaning soft brush and the inner wall of the inner groove. The adsorption mechanism is used to adsorb the connecting block on the inner wall of the inner groove or to separate the connecting block from the inner wall of the inner groove.

[0007] Preferably, the sliding mechanism includes a slider and a chute. The slider is fixedly connected to the outer side wall of the connecting block. The chute is opened on the inner wall of the inner groove, and the slider is slidably arranged in the chute.

[0008] Preferably, the rotating mechanism includes a rotating block and a rotating groove. The rotating block is fixedly connected to the connecting rod. The rotating groove is opened in the connecting block, and the rotating block is movably arranged in the rotating groove.

[0009] Preferably, the rotating block is of a spherical structure, the rotating groove is of a spherical groove, and the rotating block is adapted to the rotating groove.

[0010] Preferably, the adsorption mechanism includes a metal sheet and an electromagnet. The metal sheet is fixedly connected to the side of the connecting block away from the cleaning soft brush. The electromagnet is fixedly connected to the inner wall of the inner groove, and the metal sheet is adapted to the electromagnet.

[0011] Preferably, a storage groove is opened on one side of the dissection tube close to the cleaning soft brush. A through hole is opened on the inner wall of the storage groove, and the through hole is communicated with the inner groove. The connecting rod penetrates through the through hole.

[0012] Preferably, both the storage groove and the inner groove are of a circular structure, and the diameter of the storage groove is smaller than the diameter of the inner groove.

[0013] Preferably, a limiting ring is arranged on one side of the cleaning soft brush close to the storage groove, and the limiting ring is fixedly sleeved on the connecting rod.

[0014] The working principle and beneficial effects of the present utility model are as follows:

[0015] In the present utility model, medical staff can manipulate the connecting rod to axially move within the stripping tube through the operating handle, so as to drive the mounting seat and the cleaning soft brush to axially move at the front end of the stripping tube through the connecting rod, thereby facilitating the adjustment of the cleaning position of the cleaning soft brush. Since the connecting rod is rotatably connected within the stripping tube and the connecting rod and the connecting block are rotatably connected together through a rotating mechanism, medical staff can manipulate the connecting rod to rotate within the stripping tube through the operating handle, so as to drive the mounting seat and the cleaning soft brush to radially rotate at the front end of the stripping tube, making the cleaning effect of the rotating cleaning soft brush on the tissue surface better. Then, various submucosal injection solutions are injected into the lesion through the water injection channel and the water injection tube, and it can also be used for functions such as spraying on the tissue surface and cleaning the visual field. Therefore, in this design, medical staff only need to use the operating handle to move and rotate the connecting rod, so as to conveniently adjust the cleaning position of the cleaning soft brush and make the cleaning soft brush rotate, thereby improving the cleaning effect on the tissue surface of the lesion, being beneficial to improving the stripping effect of the stripping tube on the diseased part, and solving the problem of poor cleaning effect on the tissue surface of the lesion in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0017] Figure 1 is the overall structural schematic diagram of an endoscopic submucosal dissection water injection device proposed by the present utility model;

[0018] Figure 2 is the external structural schematic diagram of an endoscopic submucosal dissection water injection device proposed by the present utility model;

[0019] Figure 3 is Figure 2 the enlarged schematic diagram of the structure of part A in

[0020] Figure 4 is the structural cross-sectional view of an endoscopic submucosal dissection water injection device proposed by the present utility model when the cleaning soft brush extends out of the storage groove;

[0021] Figure 5 is the structural cross-sectional view of an endoscopic submucosal dissection water injection device proposed by the present utility model when the cleaning soft brush is stored in the storage groove;

[0022] Figure 6 is Figure 5 the enlarged schematic diagram of the structure of part B in

[0023] In the figure: 1. Stripping tube; 2. Water injection channel; 3. Water injection pipe; 4. Connecting rod; 5. Operating handle; 6. Mounting seat; 7. Cleaning soft brush; 8. Inner groove; 9. Connecting block; 10. Slide block; 11. Slide groove; 12. Metal sheet; 13. Electromagnet; 14. Storage groove; 15. Through hole; 16. Limit ring; 17. Rotating block; 18. Rotating groove. Detailed implementation manners

[0024] To make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the detailed implementation manners.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 , the present utility model provides a technical solution: an endoscopic submucosal dissection water injection device, including a stripping tube 1, a water injection channel 2 is opened in the stripping tube 1, a water injection pipe 3 is arranged in the water injection channel 2, a connecting rod 4 is rotatably connected in the stripping tube 1, one end of the connecting rod 4 extends to one side of the stripping tube 1 and is fixedly connected with an operating handle 5, the other end of the connecting rod 4 extends to the other side of the stripping tube 1 and is fixedly connected with a mounting seat 6, a cleaning soft brush 7 is arranged on the mounting seat 6, an inner groove 8 is opened in the stripping tube 1, and the connecting rod 4 passes through the inner groove 8. A connecting block 9 is slidably arranged in the inner groove 8 through a sliding mechanism, and the connecting block 9 and the connecting rod 4 are rotatably connected together through a rotating mechanism. An adsorption mechanism is arranged between the side of the connecting block 9 away from the cleaning soft brush 7 and the inner wall of the inner groove 8, and the adsorption mechanism is used to adsorb the connecting block 9 on the inner wall of the inner groove 8 or to separate the connecting block 9 from the inner wall of the inner groove 8.

[0026] During use, when it is necessary to clean the lesion site, first, since the connecting block 9 is slidably arranged in the inner groove 8 through a sliding mechanism, the connecting rod 4 can axially move within the peeling tube 1. Medical staff can manipulate the connecting rod 4 to axially move within the peeling tube 1 through the operating handle 5, so as to drive the mounting seat 6 and the cleaning soft brush 7 to axially move at the front end of the peeling tube 1 through the connecting rod 4, thereby facilitating the adjustment of the cleaning position of the cleaning soft brush 7. Also, since the connecting rod 4 is rotatably connected within the peeling tube 1 and the connecting rod 4 and the connecting block 9 are rotatably connected together through a rotating mechanism, medical staff can manipulate the connecting rod 4 to rotate within the peeling tube 1 through the operating handle 5, so as to drive the mounting seat 6 and the cleaning soft brush 7 to radially rotate at the front end of the peeling tube 1 through the connecting rod 4, making the cleaning effect of the rotating cleaning soft brush 7 on the tissue surface better. After that, various submucosal injection solutions are injected into the lesion site through the water injection channel 2 and the water injection tube 3, and it can also be used for functions such as spraying on the tissue surface and cleaning the visual field. Therefore, in this design, medical staff only need to use the operating handle 5 to move and rotate the connecting rod 4, so as to conveniently adjust the cleaning position of the cleaning soft brush 7 and make the cleaning soft brush 7 rotate, thereby improving the cleaning effect on the tissue surface of the lesion site, being beneficial to improving the peeling effect of the peeling tube 1 on the diseased part, and solving the problem of poor cleaning effect on the tissue surface of the lesion site in the related technology.

[0027] Refer to Figure 4 , Figure 5 and Figure 6 , the sliding mechanism includes a slider 10 and a sliding groove 11. The slider 10 is fixedly connected to the outer wall of the connecting block 9, the sliding groove 11 is opened on the inner wall of the inner groove 8, and the slider 10 is slidably arranged in the sliding groove 11. During the process of the connecting block 9 sliding within the inner groove 8, the slider 10 will always slide along with it in the sliding groove 11, which can radially limit the connecting block 9 and prevent the connecting block 9 from rotating within the inner groove 8, thereby ensuring the stability of the connecting block 9 during the sliding process within the inner groove 8.

[0028] Refer to Figure 4 , Figure 5 and Figure 6 , the rotating mechanism includes a rotating block 17 and a rotating groove 18. The rotating block 17 is fixedly connected to the connecting rod 4, the rotating groove 18 is opened within the connecting block 9, and the rotating block 17 is movably arranged in the rotating groove 18. The rotating block 17 is a spherical structure, the rotating groove 18 is a spherical groove, and the rotating block 17 is adapted to the rotating groove 18.

[0029] Through the spherical structure design of the rotating block 17 and the rotating groove 18, the rotating block 17 can rotate within the rotating groove 18, so that the connecting rod 4 can rotate relative to the connecting block 9, achieving the purpose of driving the cleaning soft brush 7 to rotate by the connecting rod 4.

[0030] Refer to Figure 4 、 Figure 5 and Figure 6 ,The adsorption mechanism includes a metal sheet 12 and an electromagnet 13. The metal sheet 12 is fixedly connected to the side of the connecting block 9 away from the cleaning soft brush 7. The electromagnet 13 is fixedly connected to the inner wall of the inner groove 8, and the metal sheet 12 is adapted to the electromagnet 13. The electromagnet 13 is connected to a power source, and a switch for controlling the opening and closing of the electromagnet 13 is provided on the device.

[0031] After cleaning, the medical staff pulls the connecting rod 4 back through the operating handle 5. The connecting rod 4 will pull the cleaning soft brush 7 back to the initial position. At this time, the connecting block 9 will drive the metal sheet 12 to move towards the electromagnet 13. The electromagnet 13 is turned on, and the electromagnet 13 will adsorb the metal sheet 12, thereby adsorbing the connecting block 9, and the cleaning soft brush 7 can be limited, preventing the cleaning soft brush 7 from moving and affecting the peeling process of the diseased part; when cleaning is required again, just turn off the electromagnet 13, and the connecting rod 4, the connecting block 9 and the cleaning soft brush 7 can all move.

[0032] Refer to Figure 3 、 Figure 4 and Figure 5 ,A receiving groove 14 is opened on one side of the peeling tube 1 close to the cleaning soft brush 7. A through hole 15 is opened on the inner wall of the receiving groove 14, and the through hole 15 is communicated with the inner groove 8. The connecting rod 4 passes through the through hole 15. Both the receiving groove 14 and the inner groove 8 are circular structures, and the diameter of the receiving groove 14 is smaller than the diameter of the inner groove 8.

[0033] A limiting ring 16 is provided on one side of the cleaning soft brush 7 close to the receiving groove 14, and the limiting ring 16 is fixedly sleeved on the connecting rod 4.

[0034] After cleaning, the medical staff pulls the connecting rod 4 back through the operating handle 5. The connecting rod 4 will pull the cleaning soft brush 7 back into the receiving groove 14, so that the cleaning soft brush 7 can be conveniently stored, preventing the cleaning soft brush 7 from leaking out of the peeling tube 1 and affecting the peeling process of the diseased part; among them, through the setting of the limiting ring 16, it can be ensured that the cleaning soft brush 7 can only be stored in the receiving groove 14.

[0035] Working principle and usage process of the utility model: When in use, when it is necessary to clean the lesion site, first of all, since the connecting block 9 is slidably arranged in the inner groove 8 through the action of the slider 10 and the chute 11, the connecting rod 4 can axially move in the peeling tube 1. Medical staff can control the axial movement of the connecting rod 4 in the peeling tube 1 through the operating handle 5, so that the mounting seat 6 and the cleaning soft brush 7 can be driven by the connecting rod 4 to axially move at the front end of the peeling tube 1, thereby facilitating the adjustment of the cleaning position of the cleaning soft brush 7. Also, since the connecting rod 4 is rotatably connected in the peeling tube 1 and the connecting rod 4 and the connecting block 9 are rotatably connected together through the action of the rotating block 17 and the rotating groove 18, medical staff can control the rotation of the connecting rod 4 in the peeling tube 1 through the operating handle 5, so that the mounting seat 6 and the cleaning soft brush 7 can be driven by the connecting rod 4 to radially rotate at the front end of the peeling tube 1, making the cleaning effect of the rotating cleaning soft brush 7 on the tissue surface better. After that, various submucosal injection solutions are injected into the lesion site through the water injection channel 2 and the water injection tube 3, and it can also be used for functions such as spraying on the tissue surface and cleaning the visual field; after the cleaning is completed, medical staff pull the connecting rod 4 back through the operating handle 5, and the connecting rod 4 will pull the cleaning soft brush 7 back into the storage groove 14, so that the cleaning soft brush 7 can be conveniently stored, preventing the cleaning soft brush 7 from leaking out of the peeling tube 1 and affecting the peeling process of the diseased part; among them, through the setting of the limiting ring 16, it can be ensured that the cleaning soft brush 7 can only be stored in the storage groove 14. During this process, the connecting block 9 will drive the metal sheet 12 to move towards the electromagnet 13, turn on the electromagnet 13, and the electromagnet 13 will adsorb the metal sheet 12, thereby adsorbing the connecting block 9, and the cleaning soft brush 7 can be limited, preventing the cleaning soft brush 7 from moving and affecting the peeling process of the diseased part; when it is necessary to clean again, just turn off the electromagnet 13, and the connecting rod 4, the connecting block 9 and the cleaning soft brush 7 can all move.

[0036] The above is only the preferred embodiment of the utility model and is not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An endoscopic submucosal dissection water injection device, comprising a dissection tube (1), a water injection channel (2) being provided in the dissection tube (1), a water injection tube (3) being provided in the water injection channel (2), characterized in that: A connecting rod (4) is rotatably connected inside the stripping tube (1), one end of the connecting rod (4) extends to one side of the stripping tube (1) and is fixedly connected to an operating handle (5), the other end of the connecting rod (4) extends to the other side of the stripping tube (1) and is fixedly connected to a mounting seat (6), a cleaning soft brush (7) is provided on the mounting seat (6), an inner groove (8) is provided inside the stripping tube (1), and the connecting rod (4) passes through the inner groove (8), a connecting block (9) is slidably provided in the inner groove (8) through a sliding mechanism, the connecting block (9) and the connecting rod (4) are rotatably connected together through a rotating mechanism, an adsorption mechanism is provided between the side of the connecting block (9) away from the cleaning soft brush (7) and the inner wall of the inner groove (8), the adsorption mechanism is used to adsorb the connecting block (9) on the inner wall of the inner groove (8) or to make the connecting block (9) detach from the inner wall of the inner groove (8).

2. The endoscopic submucosal dissection water injection device according to claim 1, characterized in that: The sliding mechanism comprises a slider (10) and a slide groove (11), wherein the slider (10) is fixedly connected to the outer wall of the connecting block (9), the slide groove (11) is arranged on the inner wall of the inner groove (8), and the slider (10) is slidably arranged in the slide groove (11).

3. The endoscopic submucosal dissection water injection device according to claim 1, characterized in that: The rotating mechanism comprises a rotating block (17) and a rotating groove (18); the rotating block (17) is fixedly connected to the connecting rod (4); the rotating groove (18) is opened in the connecting block (9); and the rotating block (17) is movably arranged in the rotating groove (18).

4. The endoscopic submucosal dissection water injection device according to claim 3, characterized in that: The rotating block (17) is a spherical structure, the rotating groove (18) is a spherical groove, and the rotating block (17) is adapted to the rotating groove (18).

5. The endoscopic submucosal dissection water injection device according to claim 1, characterized in that: The adsorption mechanism comprises a metal sheet (12) and an electromagnet (13); the metal sheet (12) is fixedly connected to a side of the connection block (9) away from the cleaning soft brush (7); the electromagnet (13) is fixedly connected to the inner wall of the inner groove (8); and the metal sheet (12) is adapted to the electromagnet (13).

6. The endoscopic submucosal dissection water injection device according to claim 1, characterized in that: The stripping tube (1) is provided with a receiving groove (14) on one side close to the cleaning soft brush (7), a through opening (15) is provided on the inner wall of the receiving groove (14), and the through opening (15) is connected to the inner groove (8), and the connecting rod (4) passes through the through opening (15).

7. The endoscopic submucosal dissection water injection device according to claim 6, characterized in that: The receiving groove (14) and the inner groove (8) are both circular structures, and the diameter of the receiving groove (14) is smaller than the diameter of the inner groove (8).

8. The endoscopic submucosal dissection water injection device according to claim 6, characterized in that: A limiting ring (16) is provided on one side of the cleaning soft brush (7) close to the storage groove (14), and the limiting ring (16) is fixedly sleeved on the connecting rod (4).

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