Double-suction-tube enteroscope
By designing a double-suction enteroscope and utilizing negative pressure adsorption technology within the suction tube, the problem of polyps detaching during enteroscopy was solved, enabling reliable polyp removal and improving the success rate of the procedure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU FAZHENG TECH DEV CO LTD
- Filing Date
- 2024-12-06
- Publication Date
- 2026-04-21
AI Technical Summary
During a small bowel endoscopy, after polyps are removed, they can easily fall out because the bends and folds of the small intestine can cause them to detach from the cutting equipment.
A dual-suction enteroscope was designed, comprising a probe assembly, a suction tube, and a small suction pump. Polyps are removed through the biopsy tube, and negative pressure adsorption technology inside the suction tube is used to ensure that the polyps are firmly adsorbed at the suction tube opening and do not fall off.
It effectively prevents polyps from detaching during the movement of the enteroscope, ensuring smooth removal of polyps and improving the success rate and reliability of polyp removal.
Smart Images

Figure CN224140789U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a double-suction enteroscope. Background Technology
[0002] A enteroscopy is a device used to examine the inside of the small intestine. By inserting a cannula into the small intestine, the inside of the small intestine is observed through a camera. When polyps are found inside the small intestine, a biopsy tube is used to insert a cutting device into the small intestine to remove the polyps.
[0003] After polyp removal, the polyp needs to be moved out of the small intestine with the small endoscope. The polyp is held and moved by the cutting equipment. However, the small intestine has many bends and folds. As the scene moves, the bends and folds will touch the removed polyp, causing the polyp to fall out of the cutting equipment. Utility Model Content
[0004] The purpose of this invention is to provide a double-suction enteroscope to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-suction enteroscope, including an operating rod, the end of which is provided with a cannula for inserting into the small intestine, and further comprising:
[0006] The probe assembly includes a camera capable of image observation, and a first mounting block for mounting the camera is provided on the outside of the camera. The front of the first mounting block has a suction port.
[0007] A suction tube is disposed inside the operating rod, and one end of the suction tube is connected to the suction tube opening;
[0008] A small air pump, wherein the output end of the small air pump is connected to one end of a suction pipe, and a connecting piece is provided between the suction pipe and the small air pump for connecting the suction pipe and the small air pump.
[0009] Preferably, the end of the operating rod is connected through to one end of the insertion tube, and the first mounting block is sleeved inside the other end of the insertion tube.
[0010] Preferably, the outer wall of the operating rod is fixedly connected with a biopsy tube for inserting a biopsy device, and the front of the first mounting block is provided with a biopsy port for extending out of the biopsy device, with one end of the biopsy tube communicating with the biopsy port.
[0011] Preferably, the front of the first mounting block is provided with a medical cold light lamp for illumination, and the other end of the suction tube is connected to the suction tube opening.
[0012] Preferably, the suction tube extends out of the outer wall of the operating rod and is fitted with a second mounting block, one side of which is fixedly connected to the outer wall of the operating rod.
[0013] Preferably, the outer wall of the suction tube is provided with a sealing component for sealing the suction tube. The sealing component includes a plug, a fixing sleeve is fitted on the outer wall of one end of the suction tube, and a connecting band for connecting with the fixing sleeve is fixedly connected to the outer wall of the plug.
[0014] Preferably, the connecting member includes a connecting pipe, one end of which is connected to the output end of a small air pump, and the other end of which is connected to one end of a suction pipe.
[0015] The technical effects and advantages of this utility model are as follows:
[0016] This invention utilizes a design incorporating a cannula, probe assembly, suction tube, and small suction pump. When the cannula is inserted into the small intestine for examination, the biopsy device is inserted into the small intestine through the biopsy tube and biopsy port to remove polyps. At this time, the biopsy device can be pulled to the front of the first mounting block, and the position of the polyp can be observed through a camera. The small suction pump corresponding to the suction tube port is then activated. The small suction pump draws gas from inside the suction tube, creating negative pressure inside the suction tube, thereby firmly adhering the polyp to the front of the suction tube port and preventing it from falling off. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.
[0018] Figure 2 This is a three-dimensional structural diagram of the operating lever of this utility model.
[0019] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure of A in the middle.
[0020] Figure 4 This is a three-dimensional structural diagram of the probe assembly of this utility model.
[0021] In the diagram: 1. Operating lever; 2. Insertion tube; 3. Probe assembly; 31. First mounting block; 32. Camera; 33. Biopsy port; 34. Medical cold light lamp; 35. Suction tube port; 4. Biopsy tube; 5. Aspiration tube; 6. Second mounting block; 7. Small air pump; 8. Connecting tube; 9. Sealing assembly; 91. Plug; 92. Connecting strap; 93. Fixing sleeve. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] This utility model provides, for example Figure 1-4 The illustrated double-suction enteroscope includes an operating rod 1, with a cannula 2 for inserting into the small intestine at the end of the operating rod 1, and further includes:
[0024] The probe assembly 3 includes a camera 32 capable of image observation. The camera 32 has a first mounting block 31 for mounting the camera 32 on its exterior. The front of the first mounting block 31 has a suction port 35.
[0025] The suction tube 5 is located inside the operating lever 1, and one end of the suction tube 5 is connected to the suction tube opening 35.
[0026] A small air pump 7 is provided, with its output end connected to one end of a suction pipe 5. A connecting piece is provided between the suction pipe 5 and the small air pump 7 for connecting the two parts.
[0027] Specifically, the end of the operating rod 1 is connected to one end of the insertion tube 2, the first mounting block 31 is sleeved inside the other end of the insertion tube 2, the outer wall of the operating rod 1 is fixedly connected to a biopsy tube 4 for inserting a biopsy device, the front of the first mounting block 31 is provided with a biopsy port 33 for extending the biopsy device, one end of the biopsy tube 4 is connected to the biopsy port 33, and the front of the first mounting block 31 is provided with a medical cold light lamp 34 for illumination.
[0028] Furthermore, the operating lever 1, the insertion tube 2, the first mounting block 31, the biopsy tube 4, the biopsy port 33, the camera 32, and the medical cold light lamp 34 are all components of the existing CF-HQ290I electronic colonoscope. The insertion tube 2 is equipped with power supply and signal transmission channels for the camera 32 and the medical cold light lamp 34, which are used to transmit the information collected by the camera 32 in real time and provide power for the operation of the camera 32 and the medical cold light lamp 34. One end of the biopsy tube 4 is set outside the operating lever 1, and the rest are set inside the operating lever 1 and the insertion tube 2 respectively. The biopsy device is inserted through the biopsy tube 4 port outside the operating lever 1, and moves to the biopsy port 33 through the operating lever 1 and the biopsy tube 4 inside the insertion tube 2, thereby extending out of the first mounting block 31 to perform small intestine sample collection. The movement and bending of the insertion tube 2 in the small intestine are controlled by the operating lever 1, which is the existing technology of the existing equipment.
[0029] Specifically, the other end of the suction tube 5 is connected to the suction tube opening 35. The suction tube 5 extends out of the outer wall of the operating rod 1 and is fitted with a second mounting block 6. One side of the second mounting block 6 is fixedly connected to the outer wall of the operating rod 1. The outer wall of the suction tube 5 is provided with a sealing component 9 for sealing the suction tube 5. The sealing component 9 includes a plug 91. The outer wall of one end of the suction tube 5 is fitted with a fixing sleeve 93. The outer wall of the plug 91 is fixedly connected with a connecting band 92 for connecting with the fixing sleeve 93. The connecting member includes a connecting pipe 8. One end of the connecting pipe 8 is connected to the output end of the small air pump 7, and the other end of the connecting pipe 8 is connected to one end of the suction tube 5.
[0030] Furthermore, two suction tubes 5 are provided, symmetrically distributed on both sides of the operating rod 1, similar to the arrangement of the biopsy tube 4. The portion of the suction tube 5 extending out of the operating rod 1 is wrapped and fixed by the second mounting block 6, and the portion of the suction tube 5 extending out of the second mounting block 6 is connected to the connecting tube 8. Two suction ports 35 are provided, located between the camera 32 and the biopsy port 33. The diameter of the suction port 35 is 2mm. The size of the polyp to be removed is generally 1.2-1.5cm, so the removed polyp will not enter the interior of the suction tube 5 through the suction port 35. When the removed sample is smaller than the diameter of the suction port 35, a filter screen can be glued inside the suction port 35. The filter screen can have a pore size of 0.1mm to prevent the object from entering the suction tube 5. The second mounting block 6 is glued and fixed to the outer wall of the operating rod 1. The outer diameter of the plug 91 corresponds to the inner diameter of the suction tube 5, so that the plug 91 can be inserted into the port of the suction tube 5 for suction. The sealing of the end of the suction tube 5 ensures that no foreign objects will enter the interior of the suction tube 5 when it is not in use. The two ends of the connecting strap 92 are respectively glued and fixed to the opposite side of the plug 91 and the fixing sleeve 93. The fixing sleeve 93 is fixedly sleeved on the outer wall of the end of the suction tube 5 that extends out of the second mounting block 6 by adhesive. When the suction tube 5 is needed, one end of the connecting tube 8 is sleeved on the outer wall of the end of the suction tube 5 that extends out of the second mounting block 6, and then the small suction pump 7 is started to extract the gas inside the suction tube 5, so that the suction tube 5 is negatively pressured, thereby firmly sucking the sample collected by the biopsy equipment to the port of the suction tube 35. It will not fall off as the insertion tube 2 and the first mounting block 31 bend and move. Before suctioning at the suction tube 35, the size of the sample can be observed through the camera 32 so as to select whether to use one or two suction tubes 5 for suction. At the same time, the suction tube 5 at which position is used can be selected according to the position of the sample collected.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A double-suction tube type enteroscope comprising an operating rod (1), the end of which is provided with a cannula (2) for insertion into the small intestine, characterized in that, Also includes: The probe assembly (3) includes a camera (32) capable of image observation. The camera (32) is provided with a first mounting block (31) for mounting the camera (32) on its exterior. The front of the first mounting block (31) is provided with a suction port (35). A suction tube (5) is provided inside the operating rod (1), and one end of the suction tube (5) is connected to the suction tube opening (35). A small air pump (7) is provided, the output end of which is connected to one end of a suction pipe (5), and a connecting piece is provided between the suction pipe (5) and the small air pump (7) for connecting the suction pipe (5) and the small air pump (7).
2. A twin-lumen enteroscope according to claim 1, characterized in that The end of the operating lever (1) is connected through to one end of the insertion tube (2), and the first mounting block (31) is sleeved inside the other end of the insertion tube (2).
3. A twin-suction tube enteroscope according to claim 1, wherein The outer wall of the operating rod (1) is fixedly connected to a biopsy tube (4) for inserting a biopsy device. The front of the first mounting block (31) is provided with a biopsy port (33) for extending the biopsy device. One end of the biopsy tube (4) is connected to the biopsy port (33).
4. A twin-suction tube enteroscope according to claim 1, wherein The front of the first mounting block (31) is provided with a medical cold light lamp (34) for illumination, and the other end of the suction tube (5) is connected to the suction tube opening (35).
5. The dual-suction tube enteroscope according to claim 1, wherein The suction tube (5) extends out of the outer wall of the operating rod (1) and is fitted with a second mounting block (6). One side of the second mounting block (6) is fixedly connected to the outer wall of the operating rod (1).
6. A twin-lumen enteroscope according to claim 5, characterized in that The outer wall of the suction tube (5) is provided with a sealing component (9) for sealing the suction tube (5). The sealing component (9) includes a plug (91). A fixing sleeve (93) is sleeved on the outer wall of one end of the suction tube (5). A connecting band (92) for connecting with the fixing sleeve (93) is fixedly connected to the outer wall of the plug (91).
7. A dual-suction tube enteroscope according to claim 1, wherein The connecting component includes a connecting pipe (8), one end of which is connected to the output end of a small air pump (7), and the other end of which is connected to one end of a suction pipe (5).