Anti-clogging self-flushing suction pipe

Abstract

This invention discloses an anti-clogging self-flushing suction tube, relating to the field of medical device technology. The invention includes a control handle with a flexible tube at its bottom, one end of which is connected to a cylindrical head. A flushing assembly is located inside the cylindrical head, including a mounting groove extending into the flexible tube at one end. Flushing tubes are located on both sides of the inner cavity of the mounting groove. By creating a mounting groove inside the cylindrical head and arranging flushing tubes and flushing heads on both sides of the inner cavity, this invention enables directional flushing of hardened fecal matter or viscous feces. During flushing, the flushing fluid is sprayed from the flushing head through the flushing tubes, acting on the surface of the blockage to soften and disperse it, thereby reducing the risk of blockage and maintaining unobstructed negative pressure suction. This significantly improves examination efficiency by reducing the tedious operation of doctors repeatedly withdrawing the endoscope and manually clearing blockages.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and in particular relates to an anti-clogging self-flushing suction tube. Background Technology

[0002] The main function of colonoscopy is to examine the internal health of the large intestine (including the rectum, colon, and cecum). It is inserted into the intestine through the anus using a thin, flexible tube with a camera, allowing direct observation of the intestinal wall mucosa for lesions such as inflammation, ulcers, polyps, or tumors. In addition, colonoscopy can also perform various treatment procedures, such as removing polyps, removing foreign objects, or stopping bleeding. Currently, it is also one of the most accurate methods for screening and diagnosing colorectal cancer, and regular checkups help to detect and treat precancerous lesions in their early stages.

[0003] The existing flexible tubes still have some problems in use. For example, during colonoscopy, the suction channel is often blocked by hardened or sticky feces. Once blocked, the doctor has to stop the examination and repeatedly withdraw the scope, flush, or manually clear the blockage with an external syringe after withdrawal. The whole process is time-consuming and laborious, which seriously affects the efficiency of the examination and also increases the patient's discomfort.

[0004] To address these issues, we offer an anti-clogging self-flushing suction tube. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-clogging self-flushing suction pipe, which solves the problem that existing hoses cannot unclog dry or sticky feces by combining the flushing head and the crushing plate.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution.

[0007] This invention relates to an anti-clogging self-flushing suction pipe, comprising a control handle, a flexible tube at the bottom of the control handle, one end of the flexible tube being connected to a cylindrical head; a flushing assembly is disposed inside the cylindrical head, the flushing assembly including a mounting groove, the mounting groove being formed inside the cylindrical head, one end of the mounting groove extending into the flexible tube, flushing pipes being disposed on both sides of the inner cavity of the mounting groove, one end of the flushing pipe being connected to a flushing head; a crushing assembly is disposed inside the cylindrical head, the crushing assembly including a negative pressure pipe, the negative pressure pipe being disposed inside the mounting groove, a drive motor being disposed at one end of the negative pressure pipe, a drive rod being fixedly connected to the output end of the drive motor, and a crushing plate being fixedly connected to one end of the drive rod.

[0008] The present invention is further configured such that a mounting bracket is fixedly connected to the bottom of the cylindrical head, and the drive motor is fixedly connected to the top of the mounting bracket.

[0009] The invention is further configured such that the crushing plate is in the shape of a "cubic prism", and a blunt tooth is fixedly connected to one side of the crushing plate, the blunt tooth being able to avoid causing injury to the human body during crushing.

[0010] The invention is further configured such that a smooth sleeve is fixedly connected to the inner wall of the negative pressure tube, and a spiral guide groove is provided on the inner wall of the smooth sleeve. The spiral guide groove is used to guide the suctioned material during the negative pressure suction process.

[0011] The present invention is further configured such that a pressure regulating valve is provided at the bottom of the surface of the rinsing pipe, and the pressure regulating valve is used to control the pressure of the rinsing fluid during the rinsing process.

[0012] The present invention is further configured such that a connector is provided on the top of one side of the control handle, which is used to connect to an external device.

[0013] The invention is further configured such that the surface of the control handle is provided with a grip groove, which is used to increase the friction and comfort when medical staff hold the handle, and to prevent the handle from slipping off due to sweaty hands or prolonged operation.

[0014] The invention is further configured such that the outer diameter of the cylindrical head is 3.0 mm to 3.8 mm, for use in fitting and inserting into the biopsy forceps channel of a colonoscopy device.

[0015] The invention is further configured such that a circular groove is formed at the bottom of the cylindrical head, and the bottom surface of the flushing pipe is fixedly connected to the inside of the circular groove.

[0016] The present invention has the following beneficial effects.

[0017] This invention utilizes an installation groove inside a cylindrical head and flushing pipes and flushing heads on both sides of the inner cavity to achieve directional flushing of hardened fecal matter or viscous feces. During flushing, the flushing fluid is sprayed from the flushing head through the flushing pipe and acts on the surface of the blockage, softening and dispersing it, thereby reducing the risk of blockage and maintaining unobstructed negative pressure suction. This reduces the tedious operation of doctors repeatedly withdrawing the endoscope due to blockage and significantly improves examination efficiency.

[0018] This invention, through the setting of a negative pressure pipe and a drive motor, can actively and mechanically break up blockages inside the suction pipe. The drive motor drives the crushing plate to rotate through the drive rod, so that the blunt teeth fixed on one side of the crushing plate break up the softened fecal blockage, decompose it into fine particles, and then suck it out with negative pressure. The blunt teeth can avoid damage to human tissue during the crushing process, thus ensuring safety during use.

[0019] This invention, through the design of a smooth sleeve and a spiral guide groove, can effectively guide the aspirated material during negative pressure suction. During suction, the smooth sleeve reduces the adhesion and wall adhesion of feces, maintaining the smoothness of negative pressure suction. At the same time, the spiral guide groove can guide the broken fine particles to flow in a predetermined direction, preventing them from accumulating again in the tube, further reducing the probability of blockage, and ensuring the continuous and stable operation of the suction tube in the complex intestinal environment.

[0020] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0022] Figure 1 A 3D diagram to prevent clogging of the self-flushing suction pipe.

[0023] Figure 2 A schematic diagram of the control handle in the self-flushing suction tube to prevent blockage.

[0024] Figure 3 A schematic diagram of the structure of the cylindrical head in the self-flushing suction pipe to prevent blockage.

[0025] Figure 4 An exploded diagram of the cylindrical head in the self-purifying suction pipe to prevent blockage.

[0026] Figure 5 A schematic diagram of the negative pressure pipe and flushing pipe in the self-flushing suction pipe to prevent blockage.

[0027] Figure 6 A schematic diagram of the structure for preventing the breakage of the plate in the self-flushing suction pipe.

[0028] Figure 7 Diagram showing the explosion of the negative pressure pipe in the self-flushing suction pipe to prevent blockage.

[0029] Figure 8 A cross-sectional view of the smooth sleeve in the self-flushing suction pipe to prevent clogging.

[0030] In the attached diagram: 1. Control handle; 2. Hose; 3. Cylindrical head; 4. Mounting slot; 5. Flushing pipe; 6. Flushing head; 7. Negative pressure pipe; 8. Drive motor; 9. Drive rod; 10. Crushing plate; 11. Mounting bracket; 12. Blunt tooth; 13. Smooth sleeve; 14. Spiral guide groove; 15. Regulating valve; 16. Connector; 17. Grip groove; 18. Circular groove. Detailed Implementation

[0031] The technical solutions of the present invention will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] Example 1 Please see Figures 1-8 This invention relates to an anti-clogging self-flushing suction pipe, comprising a control handle 1, a flexible hose 2 at the bottom of the control handle 1, one end of the flexible hose 2 being connected to a cylindrical head 3; a flushing assembly is provided inside the cylindrical head 3, the flushing assembly including an installation groove 4, the installation groove 4 being opened inside the cylindrical head 3, one end of the installation groove 4 extending into the interior of the flexible hose 2, flushing pipes 5 being provided on both sides of the inner cavity of the installation groove 4, one end of the flushing pipe 5 being connected to a flushing head 6; a crushing assembly is provided inside the cylindrical head 3, the crushing assembly including a negative pressure pipe 7, the negative pressure pipe 7 being provided inside the installation groove 4, a drive motor 8 being provided at one end of the negative pressure pipe 7, a drive rod 9 being fixedly connected to the output end of the drive motor 8, and a crushing plate 10 being fixedly connected to one end of the drive rod 9.

[0033] Specifically: The control handle 1 serves as the operating end of the entire device, allowing medical staff to hold it for pushing, rotating, and retracting operations. The flexible tube 2 is a multi-layered composite medical flexible tube with good flexibility, flexural strength, and biocompatibility. The mounting groove 4 inside the cylindrical head 3 extends axially into the flexible tube 2, forming a continuous cavity channel. A flushing tube 5 is installed on each side of the inner cavity of the mounting groove 4, and the two flushing tubes 5 are arranged symmetrically. The front end of each flushing tube 5 is connected to a flushing head 6. The outlet direction of the flushing head 6 faces the center of the end face of the cylindrical head 3, which is the suction port of the negative pressure tube 7. When flushing is performed, the flushing fluid is sprayed out from the flushing head 6 through the flushing tube 5, forming two opposing or intersecting water streams that directly act on the surface of the dried fecal matter, causing it to quickly absorb water, soften, and disperse.

[0034] The negative pressure tube 7 is located in the center of the mounting groove 4 and is arranged in parallel with the flushing tubes 5 on both sides. The rear end of the negative pressure tube 7 is connected to an external negative pressure source through a connector 16 located on the top of one side of the control handle 1. This connector 16 is a standard medical interface used to connect external devices such as negative pressure suction devices and flushing fluid pressurization devices. The front end of the negative pressure tube 7 faces the inside of the intestine. When the negative pressure source is activated, a negative pressure environment is formed inside the negative pressure tube 7, which draws in the liquid, softened fecal matter and broken fine particles in the intestine and discharges them out of the body along the negative pressure tube 7.

[0035] Example 2 Please see Figures 1-8Based on embodiment 1, a mounting bracket 11 is fixedly connected to the bottom of the cylindrical head 3, and a drive motor 8 is fixedly connected to the top of the mounting bracket 11. The crushing plate 10 is rectangular in shape, and a blunt tooth 12 is fixedly connected to one side of the crushing plate 10. The blunt tooth 12 can avoid injury to the human body during crushing. A smooth sleeve 13 is fixedly connected to the inner wall of the negative pressure pipe 7. A spiral guide groove 14 is opened on the inner wall of the smooth sleeve 13. The spiral guide groove 14 is used to guide the suction material during the negative pressure suction process. A pressure regulating valve 15 is provided at the bottom of the surface of the flushing pipe 5. The pressure regulating valve 15 is used to control the flushing liquid pressure during the flushing process.

[0036] Specifically: the mounting bracket 11 is fixed to the bottom of the cylindrical head 3, and the drive motor 8 is fixed to the top of the mounting bracket 11 to provide rotational power for the crushing plate 10. The output end of the drive motor 8 is fixedly connected to the drive rod 9. One end of the drive rod 9 extends into the negative pressure pipe 7 and is fixedly connected to the crushing plate 10. The crushing plate 10 is rectangular in shape, and a blunt tooth 12 is fixedly connected to one side of it. The blunt tooth 12 can avoid damage to human intestinal tissue when crushing dried fecal matter. A smooth sleeve 13 is fixedly connected to the inner wall of the negative pressure pipe 7. The smooth sleeve 13 is made of polytetrafluoroethylene, which has extremely low friction. With its high coefficient of friction and excellent anti-adhesion properties, it can effectively reduce the adhesion and wall-hanging of viscous substances such as feces on the inner wall of the negative pressure tube 7, maintaining the long-term unobstructed flow of the negative pressure suction channel. At the same time, its good chemical stability and biocompatibility can meet the hygiene and safety requirements of medical devices, avoiding adverse stimulation to patients. The pressure regulating valve 15 at the bottom of the flushing tube 5 can flexibly adjust the output pressure of the flushing fluid according to the actual flushing needs in the intestine, which can not only ensure the flushing effect, but also avoid excessive pressure causing unnecessary stimulation to the intestinal tissue, further improving the safety and stability of the device.

[0037] Example 3 Please see Figures 1-8 Based on Embodiments 1 and 2, a connector 16 is provided on the top side of the control handle 1. The connector 16 is used to connect to external devices. A grip groove 17 is provided on the surface of the control handle 1. The grip groove 17 is used to increase the friction and comfort when medical staff hold the handle, and to prevent the handle from slipping due to sweaty hands or long operation time. The outer diameter of the cylindrical head 3 is 3.0mm to 3.8mm, which is used to fit into the biopsy forceps channel of the colonoscope. A circular groove 18 is provided at the bottom of the cylindrical head 3. The bottom surface of the irrigation tube 5 is fixedly connected to the inside of the circular groove 18.

[0038] Specifically: A connector 16 is provided on the top of one side of the control handle 1. This connector 16 is an integrated multi-channel interface used to connect external devices such as negative pressure suction devices, flushing fluid pressurization devices, and image processors. A grip groove 17 is provided on the surface of the control handle 1. The grip groove 17 is a concave arc structure that matches the shape of human fingers, which can increase friction and comfort when holding the hand and prevent the handle from slipping due to hand sweat or prolonged operation. The outer diameter of the cylindrical head 3 is designed to be 3.0mm to 3.8mm. This range is adapted to the inner diameter of the biopsy forceps channel of the colonoscope, ensuring that the cylindrical head 3 can be smoothly inserted into the channel and flexibly pass through the bends of the intestine. A circular groove 18 is provided at the bottom of the cylindrical head 3. The bottom surface of the flushing tube 5 is fixedly connected to the inside of the circular groove 18, so that the flushing tube 5 maintains a stable installation position in the cylindrical head 3, avoiding displacement during pushing or bending, and ensuring that the flushing fluid can be accurately sprayed from the flushing head 6 and precisely act on the surface of the blockage.

[0039] The working principle of this invention is as follows: Before use, the external equipment such as the negative pressure suction device and the flushing fluid pressurization device are connected to the anti-clogging self-flushing suction tube through the connector 16 at the top of one side of the control handle 1.

[0040] During use, the user inserts the cylindrical head 3 into the intestine through the biopsy forceps channel of the colonoscope, bringing it to the location of the blockage. The user then activates the flushing fluid pressurization device via the control handle 1. The flushing fluid is sprayed from the two flushing heads 6 through the flushing pipe 5, forming two opposing water streams that directly act on the surface of the blockage, causing it to quickly absorb water, soften, and disperse. During the flushing softening process, the pressure regulating valve 15 on the surface of the flushing pipe 5 limits the maximum output pressure of the flushing fluid to prevent excessive pressure from damaging the intestinal tissue. Simultaneously, the user activates the drive motor 8 via the control handle 1. The drive motor 8 drives the crushing plate 10 to rotate via the drive rod 9. The blunt teeth 12 on one side of the crushing plate 10 squeeze and crush the softened fecal mass, breaking it down into fine particles.

[0041] Meanwhile, the negative pressure tube 7 forms a negative pressure environment inside under the action of the external negative pressure suction device, which draws intestinal liquid, softened fecal matter and broken fine particles into the negative pressure tube 7. The polytetrafluoroethylene smooth sleeve 13 on the inner wall of the negative pressure tube 7 reduces fecal adhesion and wall hanging. The spiral guide groove 14 guides the broken fine particles to flow spirally in a predetermined direction to prevent them from accumulating again in the tube and finally being discharged from the body. After cleaning, the cylindrical head 3 is withdrawn from the biopsy forceps channel and the connector 16 is disconnected.

[0042] This achieves the effects of anti-clogging self-flushing, active breaking up of fecal matter, and smooth drainage, solving the problem that traditional flexible tube 2 is easily blocked by dried fecal matter, requiring repeated insertion and removal for cleaning, which not only prolongs the examination time and increases patient discomfort, but also easily damages the intestinal mucosa.

[0043] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An anti-clogging self-flushing suction tube, including a control handle (1), characterized in that: The bottom of the control handle (1) is provided with a flexible hose (2), and one end of the flexible hose (2) is connected to a cylindrical head (3). The cylindrical head (3) is provided with a flushing assembly. The flushing assembly includes a mounting groove (4). The mounting groove (4) is opened inside the cylindrical head (3). One end of the mounting groove (4) extends into the hose (2). Both sides of the inner cavity of the mounting groove (4) are provided with flushing pipes (5). One end of the flushing pipe (5) is connected to a flushing head (6). The cylindrical head (3) is equipped with a crushing component, which includes a negative pressure pipe (7). The negative pressure pipe (7) is located inside the mounting groove (4). A drive motor (8) is provided at one end of the negative pressure pipe (7). A drive rod (9) is fixedly connected to the output end of the drive motor (8). A crushing plate (10) is fixedly connected to one end of the drive rod (9).

2. The anti-clogging self-flushing suction tube according to claim 1, characterized in that: The cylindrical head (3) is fixedly connected to the bottom of the mounting bracket (11), and the drive motor (8) is fixedly connected to the top of the mounting bracket (11).

3. The anti-clogging self-flushing suction tube according to claim 1, characterized in that: The crushing plate (10) is rectangular in shape. A blunt tooth (12) is fixedly connected to one side of the crushing plate (10). The blunt tooth (12) can avoid causing injury to the human body during crushing.

4. The anti-clogging self-flushing suction tube according to claim 1, characterized in that: The inner wall of the negative pressure tube (7) is fixedly connected to a smooth sleeve (13), and the inner wall of the smooth sleeve (13) is provided with a spiral guide groove (14), which is used to guide the suction material during the negative pressure suction process.

5. The anti-clogging self-flushing suction tube according to claim 1, characterized in that: A pressure regulating valve (15) is provided at the bottom of the surface of the flushing pipe (5), which is used to control the pressure of the flushing fluid during the flushing process.

6. The anti-clogging self-flushing suction tube according to claim 1, characterized in that: The top of one side of the control handle (1) is provided with a connector (16), which is used to connect to an external device.

7. The anti-clogging self-flushing suction tube according to claim 1, characterized in that: The control handle (1) has a grip groove (17) on its surface. The grip groove (17) is used to increase the friction and comfort when medical staff hold the handle, and to prevent the handle from slipping due to sweaty hands or long operation time.

8. The anti-clogging self-flushing suction tube according to claim 1, characterized in that: The outer diameter of the cylindrical head (3) is 3.0 mm to 3.8 mm, and it is used to fit into the biopsy forceps channel of the colonoscopy device.

9. The anti-clogging self-flushing suction tube according to claim 1, characterized in that: The bottom of the cylindrical head (3) is provided with a circular groove (18), and the bottom surface of the flushing pipe (5) is fixedly connected to the inside of the circular groove (18).

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