Multifunctional intestinal cleaning device

Abstract

This invention relates to a multifunctional intestinal cleansing device, comprising: a limiting unit for connecting and limiting the device to a patient's body; a cleansing unit for cleaning the intestinal tract and transmitting cleansing and recovery fluids, the cleansing unit being equipped with a cleansing tube that replaces the normal defecation channel; and a workbench, the cleansing tube of the cleansing unit being connected to the workbench, and an intelligent unit installed on the workbench controlling and adjusting the working parameters of the flushing and recovery channels to form working modes for different intestinal cleansing states. When the cleansing tube of the cleansing unit is equipped with closed flushing and recovery channels, the intelligent unit acquires cleansing status information and controls the workbench to adjust the working parameters of several cleansing channels and recovery channels acting on different locations within the intestinal tract to achieve intelligent feedback intestinal cleansing operations, which is of great significance for improving the enema cleansing operation environment, enhancing operational efficiency and quality.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to intestinal cleansing treatment equipment, specifically a multifunctional intestinal cleansing device. Background Technology

[0002] The intestine is the largest digestive organ in the human body, with a highly complex physiological structure and function. Its main functions include digestion and absorption, immunity, and metabolic transport. The intestine's physiological structure can be broadly divided into the large intestine and the small intestine. Compared to the small intestine, the large intestine has a smooth inner wall without villi. The cecum and colon of the large intestine also have sac-like haustra structures on their walls. Its main functions are water reabsorption, mucus secretion to lubricate stool passage, and absorption of some nutrients. The combined peristalsis of the small and large intestines propels digestive waste towards the rectum and anus. The physiological structure of the large intestine along the direction of food waste movement can be divided into the cecum, ascending colon, transverse colon, descending colon, sigmoid colon, and rectum. Feces are expelled from the body under the control of the anus at the end of the rectum.

[0003] In clinical practice, various factors can lead to intestinal dysfunction, causing symptoms such as abdominal distension, abdominal pain, local lesions, and fistulas. For diagnostic or treatment purposes, colonoscopy is often used to examine the interior of the large intestine. Colonoscopy allows direct visualization of the inner walls of the colon, rectum, and anal canal, enabling the assessment of any lesions in these areas. Depending on the findings, auxiliary instruments can be used to collect tissue biopsies or administer appropriate treatments. Prior to colonic cleansing, an enema is necessary to ensure thorough removal of food residue and to facilitate the examination. Intestinal cleansing is categorized into four levels: A, B, C, and D, based on the presence or absence of fecal matter. Grade A indicates that the patient's intestines contain no feces, only a small amount of clear liquid; Grade B indicates that the patient's intestines contain only a small amount of fecal residue or a small amount of clear liquid, which generally does not affect endoscopy and observation; Grade C indicates that there are intermittent moderate amounts of fecal water in various segments of the intestines, but observation can be carried out smoothly by suction or changing the patient's position, without affecting the examination results; Grade D indicates that the intestines are not properly prepared, the patient's intestines are not clean, and there is a large amount of turbid fecal water or loose stool, which cannot be observed smoothly even by suction or changing the patient's position, seriously affecting the examination results and making it impossible to observe the specific condition of the intestines. Therefore, the effectiveness of intestinal cleanliness is of great significance for examination and treatment.

[0004] Among existing intestinal cleaning devices, for example, patent CN204351996U discloses a tube-bag contamination control kit for caring for patients with fecal incontinence, mainly composed of a silicone catheter assembly, a fecal collection bag, and a drainage bag. The catheter assembly has its top inserted into the body and its bottom connected to the fecal collection bag, while also being connected to the drainage bag. This patent's technical solution includes a blocking airbag and a fixing airbag at the location where the device connects to the patient's anus. The first and second flushing ports of the drainage tube flush the intestinal wall and the drainage tube wall respectively to achieve a better drainage effect. However, the fixing airbag located at the anus can affect the contraction of the anal sphincter under normal conditions due to its large size, causing continuous irritation leading to discomfort or perianal diseases. Furthermore, the placement and angle of the flushing ports are relatively limited, failing to adequately clean the intestinal folds. Patent CN204218871U discloses an intestinal contents cleansing device. This cleansing device has a rotating device in the working part inserted into the anus to cooperate with water spraying and stirring to refine hard feces, so that the refined paste can be effectively discharged. However, the rotating device is limited by its placement and cannot directly contact the hard feces, so the refining effect is generally poor. In addition, the colon has a folded structure, and the rotating device may be rolled into the intestinal wall tissue, posing a safety hazard.

[0005] Patent CN112472900B discloses an instrument for pre-colonoscopy in gastroenterology, comprising a front tube, a connecting soft ring, and a rear tube, as well as an angle adjustment mechanism. The front and rear tubes are connected by the connecting soft ring. A cleaning channel mechanism is located inside the rear tube, with a water flow adjustment mechanism at its lower part. A support block is located inside the front tube, and a liquid outlet pipe is located on the left end face of the front tube. A return plate is located at the lower end of the connecting soft ring. An inlet pipe cooperating with the cleaning channel mechanism is connected to the right end face of the rear tube, and a support plate is horizontally arranged inside the rear tube. This patent's technical solution features an angle adjustment structure and a water flow adjustment mechanism, resulting in a compact device that can be operated with one hand to adjust the flushing liquid flow rate and flushing angle. However, the device has a limited angle range, making it unsuitable for cleaning deep intestinal structures. Furthermore, manual adjustment lacks feedback information, and the control of flushing force and angle relies on experience and intuition, limiting its applicability.

[0006] Based on the above analysis, the position and angle of the flushing structure in existing intestinal cleansing devices are insufficient to handle the complex structure and variable properties of fecal matter within the intestine, especially the folds and bends formed by taenia coli, haustra, and fat axils. Furthermore, the suction and flushing structures of existing devices do not form a closed system to improve the enema working environment and enhance the quality of the procedure. Additionally, existing devices rarely incorporate feedback control during the cleaning process, relying solely on experience and intuition. Cleaning parameters such as flushing position, flushing speed, and back suction pressure should be controlled based on information about the intestinal cleanliness status to improve the accuracy of intestinal cleansing and the applicability of the device.

[0007] Furthermore, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the inventors studied a large number of documents and patents when making this invention, but due to space limitations, not all details and contents were listed in detail. However, this does not mean that the present invention does not possess the features of these prior art. On the contrary, the present invention already possesses all the features of the prior art, and the applicant reserves the right to add relevant prior art to the background art. Summary of the Invention

[0008] To address at least some of the shortcomings of existing technologies, this application provides a multifunctional intestinal cleansing device, comprising: a limiting unit for connecting and limiting the device to a patient's body, the limiting unit blocking the normal defecation passage based on an inflatable bladder and / or a water-filled bladder disposed on the inside and outside of the patient's anus; a cleansing unit for cleaning the intestinal tract and transmitting cleansing and recovery fluids, the cleansing unit being equipped with a cleansing tube that replaces the normal defecation passage; and a workbench, the cleansing tube of the cleansing unit being connected to the workbench and an intelligent unit disposed on the workbench controlling and adjusting the operating parameters of the flushing and recovery channels to form working modes for different intestinal cleansing states; wherein, when the cleansing tube is equipped with an internal anal tube and an external anal tube extending to different intestinal locations of the patient, the internal anal tube and the external anal tube can form a flushing channel and a recovery channel for transmitting cleansing and recovery fluids respectively, with the internal anal tube partially surrounded by the external anal tube, wherein the flushing channel includes several sub-channels acting on different intestinal locations of the patient.

[0009] To address the issue that existing enema devices fail to achieve a closed-loop treatment, this application first seals the normal defecation passage by placing an inflatable bladder and a water-filled bladder inside and outside the patient's anus, respectively. The water-filled and inflatable bladders establish a stable connection with the patient's body based on their own structure or connecting structures, thereby ensuring that the parts of the device in contact with the patient maintain a stable functional connection. The device includes an internal anal tube and an external anal tube that can extend to different depths within the patient's intestines; for example, the internal anal tube extends to the colon, while the external anal tube is positioned inside the anus. When the external anal tube partially surrounds the internal anal tube, the worktable delivers the cleaning solution through the device. The irrigation channel placed inside the anal tube is injected into the patient's intestines. Several irrigation channels acting on different locations in the intestines can achieve irrigation of the rectum to the colon. The mixture of intestinal contents generated during irrigation enters the anus through the rectum. A water-filled or air-filled balloon placed inside the anus, together with the outer wall of the anal tube, forms the entrance to the recovery channel. The fluid is then transferred to a specific area of ​​the worktable through the recovery channel formed by the inner wall of the external anal tube and the outer wall of the anal tube, thus realizing a closed-loop enema cleaning process. This is of great significance for improving the enema cleaning work environment and work quality, and can also protect patient privacy and improve patient compliance during the enema cleaning process.

[0010] To address the problem that existing flushing structures are insufficient for handling the complex structure and variable properties of fecal matter within the intestines, this application incorporates several flushing channels in the flushing assembly used for cleaning operations, targeting different locations. These channels can be positioned at the colonic portion, the colon-rectum junction, and the anal occlusion site, particularly in structurally complex locations such as the sigmoid colon, junctions, and bends. To ensure effective cleaning of these locations using the flushing fluid generated by the assembly, several flushing channels located in the colon are arranged sequentially at different depths, and the flushing fluid flows generated by each channel coordinate to cover the entire intestinal tract. The combined cleaning system of space and intestinal wall, for example, the flushing fluid flow towards the depths of the intestine can target the intestinal contents accumulated in the intestinal space, and the force of the flushing fluid flow can agitate and refine the large-sized substances in it. It can effectively deal with the situation of intestinal contents mixture congestion in the colon. While the other channels are cleaning the intestinal space or intestinal wall in the direction of cleaning, they can also refine the intestinal contents based on the force of the flushing fluid flow, increase the proportion of liquid in them, thereby improving the fluidity and permeability of the intestinal contents mixture in the colon or the inner side of the anus, significantly improving the device's ability to clean complex intestinal structures and intestinal contents of different shapes.

[0011] Preferably, the limiting unit is configured with a sealing component and a nursing component respectively arranged on the inside and outside of the anus. The sealing component includes an inflatable annular bladder, which is arranged with its cross-sectional diameter gradually decreasing from the inside to the outside, so that the annular bladder forms a top-shaped structure that is larger at the top and smaller at the bottom to adapt to the shape of the muscles on the inside of the anus when they are in a contracted state. The nursing component includes a nursing pad that fits the anus and an air bladder that supports the nursing pad. The air bladder is connected to the patient's body through a wearable part. The nursing pad is configured with an absorbent layer, a waterproof layer and an odor-removing layer. The circular sac placed inside the patient's anus is a water-filled sac. This sac can be filled with water at a temperature close to body temperature to improve the patient's sensation. The water-filled sac is gentler than an air sac and conforms more closely to the skin inside the anus, reducing discomfort caused by pressure. Furthermore, the circular sac's shape better adapts to the structure of the anus. When placed inside the anal sphincter, its wider upper portion and narrower lower portion ensure sufficient contact area between the upper part and the skin inside the anus, while the narrower lower portion accommodates the contraction of the anal sphincter, reducing pressure and impact on the sphincter and minimizing side effects. The nursing pad in the nursing component can seal and absorb any accidental leakage of liquid or gas, and also serves as a protective covering for the patient's private parts. This ensures cleanliness while reducing the patient's psychological burden, thus improving patient compliance during the enema procedure.

[0012] Preferably, when the cleaning tube forms a closed flushing channel and a recovery channel by connecting the patient's intestine and the workbench at both ends, the internal anal tube arranged inside the cleaning tube can extend to the colon, so that the internal anal tube can deliver the cleaning solution in at least a portion of the rectum to the colon; wherein, the external anal tube surrounding a portion of the length of the internal anal tube can extend to the inside of the anus and cooperate with the outer surface of the internal anal tube to form at least a portion of the recovery channel.

[0013] Preferably, when the anal tube can cover at least a portion of the rectum and extend to at least a portion of the colon, the portion of the anal tube inserted into the body is divided into an anterior segment and a posterior segment based on the arrangement position, such that the anterior segment can cover at least a portion of the colon and the posterior segment can cover at least a portion of the rectum, wherein the anterior segment and the posterior segment are configured in a manner that differs in flexibility.

[0014] Preferably, the cleaning unit is equipped with a flushing assembly for introducing cleaning fluid into the intestine. The flushing assembly includes several flushing tubes disposed inside the anal tube and several flushing ports disposed on the surface of the anal tube. The flushing tubes are provided with one-way valves near the flushing ports to prevent backflow. When the flushing ports act on different locations inside the intestine at different spray angles, one end of the flushing tube is connected to several flushing ports, and the other end of the flushing tube is connected to the cleaning adjustment part of the workbench, so that the flushing tubes and the corresponding flushing ports can form several flushing channels with independently adjustable working parameters.

[0015] Preferably, the cleaning unit is equipped with a back suction assembly for discharging intestinal salvage fluid. The back suction assembly is equipped with a salvage tube for forming a salvage channel. The two ends of the salvage tube are respectively connected to a back suction port arranged inside the anus and a back suction adjustment part arranged on the worktable. A control valve for changing the connection state between the salvage tube and the back suction adjustment part is provided near the back suction adjustment part on the salvage tube. When the annular bladder of the sealing assembly is arranged on the outer surface of the external anal tube near the inner anus, the rear section of the internal anal tube passes through the interior of the external anal tube and extends out of the body, so that the back suction assembly forms a back suction port communicating with the salvage tube based on the outer surface of the annular bladder and the outer surface of the rear section of the tube. When the rear section of the tube is arranged near the inner surface of the external anal tube, the salvage tube forms a salvage channel with an enlarged local flow cross-sectional size based on the outer surface of the internal anal tube and the inner surface of the external anal tube.

[0016] Preferably, the flushing assembly is configured with several flushing channels in a manner that enables the formation of flushing fluid flows acting on different locations within the intestine. The flushing channels form flushing fluid flows with different spray angles through several flushing ports arranged on the surface of the anal canal. The flushing channels include a first channel and a second channel located at the front end of the canal. The first channel is used to form a flushing fluid flow toward a first direction, and the second channel is used to form a flushing fluid flow toward a second direction. The first direction refers to the direction along the axis of the anal canal toward the depth of the intestine, and the second direction refers to the direction perpendicular to the axis of the anal canal toward the inner wall of the intestine. The first channel and the second channel form a combined flushing fluid flow that agitates the intestinal contents and flushes the inner wall of the intestine based on the flushing fluid flows sprayed in mutually perpendicular directions. The flushing assembly also includes a third channel for forming a flushing fluid flow between the first and second directions and a fourth channel for forming a flushing fluid flow between the second and third directions. The third direction refers to the direction along the axis of the anal canal toward the outside. The third channel and the fourth channel are arranged in a manner that can supplement the flushing direction and flushing range of the first and second channels, so that the first to fourth channels can agitate and flush the interior of the intestine based on the flushing fluid flow covering the first to third directions.

[0017] Preferably, the flushing port of the first channel is arranged at the front of the pipe section, including a number of large-sized nozzles and a number of small-sized nozzles arranged around the axis of the pipe section, wherein the small-sized nozzles are arranged to surround the large-sized nozzles; the flushing ports of the second to fourth channels are arranged around the axis of the pipe section to form a flushing fluid flow that is uniformly sprayed in the circumferential direction.

[0018] Preferably, when the anal tube's posterior section, in conjunction with the annular bladder, forms a suction port, the flushing assembly has a fifth channel and a sixth channel arranged in the posterior section. The fifth channel generates a flushing fluid flow biased towards a first direction to act on the intestinal space and intestinal wall above the suction port, and the sixth channel generates a flushing fluid flow biased towards a third direction to act on the suction port and the intestinal space surrounding the suction port. Wherein, when the anal tube at the suction port is arranged close to the inner surface of the external anal tube, the flushing ports of the fifth and sixth channels are arranged in a non-uniform manner in the circumferential direction on the surface of the posterior section of the tube near the suction port, so that the flushing ports closer to the axis of the external anal tube form a non-uniformly sprayed flushing fluid flow in the circumferential direction with a larger size or higher arrangement density compared to the flushing ports farther from the axis of the external anal tube.

[0019] To address the problem that existing devices rarely involve automatic feedback control of the enema cleaning process and thus cannot achieve intelligent cleaning based on the internal state of the intestines, this application provides an intelligent unit on the workbench. The intelligent unit includes: a controller for calculation and analysis; a pressure monitoring component for monitoring the pressure in the structural space of the device and the pressure in the intestinal environment; a flow monitoring component for monitoring the flow rate of the flushing and back-suction components; an image monitoring component for acquiring intestinal image information; a communication component for sending the status and control information of the cleaning process to the cloud or other device terminals; and a prompting component for indicating the cleaning status. The prompting component can also be used to indicate risk information to the operator.

[0020] Preferably, the pressure monitoring component is equipped with a first pressure sensor to a sixth pressure sensor in the cleaning adjustment section for monitoring the flushing pressure in the first to sixth channels, and a seventh pressure sensor in the front section of the tube for monitoring the pressure inside the intestine; the flow monitoring component is equipped with a first flow sensor to a sixth flow sensor in the cleaning adjustment section for monitoring the flushing flow rate in the first to sixth channels, and a seventh flow sensor in the back suction adjustment section; the cleaning adjustment section controls the flushing flow rate and flushing pressure of the liquid entering the flushing tube through separately provided electric devices; the image monitoring component includes a first camera element located near the annular sac in the rear section of the tube and a second camera element located in the front section of the tube, the first camera element is used to acquire image information of the intestinal contents mixture near the back suction port, and the second camera element is used to acquire image information of the intestinal contents mixture in the colon at the location of the tube in the front section, and the intestinal cleanliness level can be obtained based on image analysis to guide the cleaning process of the cleaning unit.

[0021] Preferably, the controller of the intelligent unit receives pressure information transmitted by the pressure monitoring component, which may include the flushing pressure of the flushing tube, the intestinal pressure, the working pressure of the back suction adjustment section, the internal pressure of the annular sac, and the internal pressure of the air sac; the controller receives flow information transmitted by the flow monitoring component, including the flushing flow rate of the flushing tube and the recovery flow rate of the recovery tube; the controller receives intestinal image information transmitted by the image monitoring component, including a first image near the back suction port acquired by the first camera element and a second image of the colon position acquired by the second camera element.

[0022] Preferably, the intelligent unit is configured with several working modes for the enema cleaning process, which includes a preparation stage, a cleaning stage, and a self-cleaning stage. For the preparation stage, a preparatory mode is configured. In the preparatory mode, the controller controls the back suction adjustment unit to maintain a first negative pressure difference with the pressure inside the intestine. The cleaning adjustment unit injects cleaning fluid into at least some of the channels from the first channel to the fourth channel at a first pressure and a first flow rate until the set capacity is completed.

[0023] The system is equipped with three working modes, one for each of the following, designed to address different intestinal conditions during the cleansing phase: the fineness of intestinal contents, the overall health of the intestines, and the patient's tolerance level. For example, the first working mode is for patients with a normal intestinal contents mixture, the second working mode is for patients with a mixture of intestinal contents containing larger solids, and the third working mode is for patients with a weak intestinal structure. In the first working mode, the controller maintains a second negative pressure difference between the back suction adjustment unit and the internal intestinal pressure, and the controller controls at least a portion of the first to sixth channels according to the flushing pressure and flushing... In the first working mode, the enemas are cleaned by adjusting the flow rate to a first multiple of the first pressure and the first flow rate. In the second working mode, the controller controls the back suction adjustment unit to maintain a third negative pressure difference with the intestinal pressure, and the controller controls at least a portion of the first to sixth channels to perform enemas cleaned by adjusting the flushing pressure and the flushing flow rate to a second multiple of the first pressure and the first flow rate. In the third working mode, the controller controls the back suction adjustment unit to maintain a fourth negative pressure difference with the intestinal pressure, and the controller controls at least a portion of the first to sixth channels to perform enemas cleaned by adjusting the flushing pressure and the flushing flow rate to a third multiple of the first pressure and the first flow rate.

[0024] A self-cleaning mode is set for the self-cleaning stage. After the cleaning stage is completed, the controller controls the back suction adjustment unit to maintain a fifth negative pressure difference with the pressure inside the intestine. The cleaning adjustment unit calls several channels from the first to the sixth channel to clean the device inside the intestine with the second pressure and the second flow rate.

[0025] Preferably, during the cleaning phase, the controller adjusts the working parameters or switches the working mode of the cleaning unit and the workbench based on the intestinal pressure obtained by the pressure monitoring component and the image information obtained by the image monitoring component. The working parameters include the number of channels, the flushing pressure, and the flushing flow rate. The flushing pressure and flushing flow rate of the first to sixth channels can be adjusted independently by the controller. When the intestinal pressure exceeds a first threshold, the flushing pressure and / or flushing flow rate of at least some of the first to sixth channels are reduced to restore the intestinal pressure to a reasonable range. When the intestinal pressure exceeds a second threshold, the cleaning unit temporarily injects cleaning fluid and an alarm is triggered by the prompting component on the workbench.

[0026] Preferably, during the cleaning phase, when both the first and second images obtained by the controller based on the image monitoring component meet the cleaning level requirements, the intelligent unit controls the cleaning unit to enter the self-cleaning mode.

[0027] Preferably, the controller calculates the flow rate of the patient's intestinal cleaning fluid based on the flushing flow rate and recovery flow rate obtained by the monitoring flow component, so that the proportion of the remaining fluid in the intestinal cavity when cleaning is completed is less than the preset proportion of the amount injected in the preparatory stage, so that the remaining fluid in the patient's intestinal cavity meets the requirements of subsequent diagnosis and treatment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the cleaning unit and the limiting unit structure of a preferred embodiment of the present invention;

[0030] Figure 3 This is a partial structural diagram of a cleaning unit according to a preferred embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the intelligent unit control connection according to a preferred embodiment of the present invention.

[0032] List of reference numerals

[0033] 100: Limiting unit; 101: Occlusion assembly; 1011: Circular bladder; 1012: Inflation tube; 102: Nursing assembly; 1021: Nursing pad; 1022: Airbag; 1023: Inflation tube; 1024: Wearing part; 200: Cleaning unit; 201: Cleaning tube; 2011: Internal anal tube; 2012: Front section of tube; 2013: Rear section of tube; 2014: External anal tube; 202: Irrigation assembly; 2021: Irrigation tube; 2022: Irrigation port; 2023: One-way valve; 2024: First channel; 2025: Second channel 2026: Third channel; 2027: Fourth channel; 2028: Fifth channel; 2029: Sixth channel; 203: Back suction assembly; 2031: Recovery pipe; 2032: Back suction port; 300: Workbench; 301: Cleaning adjustment unit; 302: Back suction adjustment unit; 303: Water filling unit; 304: Air filling unit; 305: Display unit; 400: Intelligent unit; 401: Controller; 402: Pressure monitoring assembly; 403: Flow monitoring assembly; 404: Image monitoring assembly; 405: Communication assembly; 406: Prompt assembly. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the accompanying drawings.

[0035] This application provides a multifunctional intestinal cleansing device, such as... Figure 1 As shown, the device includes: a limiting unit 100, which is equipped with a sealing component 101 and a nursing component 102. The sealing component 101 is used to maintain a stable connection between the part of the device inserted into the patient's anus and the patient's body part. The nursing component 102 can protect the patient's privacy to improve the patient's compliance during enema cleaning; a cleaning unit 200, which forms a continuous process through a cleaning tube 201 connecting the inside and outside of the anus and a flushing component 202 and a back suction component 203 set in the cleaning tube 201. The cleaning unit uses a cleaning solution to clean the patient's intestinal contents and remove them from the body, so that the intestinal cleanliness meets the requirements for examination and surgery; and a worktable 300, which is used for... The workbench 300, used for adjusting the cleaning process, is connected to the cleaning unit 200 and the limiting unit 100 via pipelines. The workbench 300 includes a cleaning adjustment section 301 for adjusting rinsing parameters, a back suction adjustment section 302 for adjusting back suction parameters, and a water filling section 303 and an air filling section 304 for filling the sealing component 101 and the care component 102 of the limiting unit 100 with water and air, respectively. The intelligent unit 400 provides control parameters for adjusting the enema cleaning process to the workbench 300 based on the status information of the limiting unit 100, the cleaning unit 200, and the workbench 300, so that the intelligent unit 400 and the workbench 300 can achieve the accuracy of enema cleaning and the applicability of the device based on feedback control.

[0036] Preferably, such as Figure 1 and Figure 2 As shown, the limiting unit 100 includes a blocking component 101 that can be placed inside the anus. Specifically, the blocking component 101 can be placed inside the internal anal sphincter to avoid sphincter damage. During the cleansing enema, the blocking component 101 is used to block the passage for intestinal contents or mixtures to flow out of the anus, allowing them to flow only from a designated channel of the device and be controlled by inflation and deflation through a pipe. The blocking component 101 can be a water-filled bladder or an air-filled bladder 1022. The air-filled bladder 1022 inflates faster and is more flexible in control, but the air-filled bladder 1022 may cause damage to the skin inside the anus. The pressure on the tissues will be relatively prominent; in order to improve the patient's experience during the enema cleaning process, the sealing component 101 in this application adopts a water balloon. Based on the flexibility of water, the water balloon can better fit the skin inside the anus and reduce the pressure on the tissues inside the anus. The water balloon also has a good cooling or warming effect. By controlling the temperature of the water inside the water balloon, the temperature difference after the sealing component 101 is inserted into the anus can be improved, so that the water balloon close to the physiological temperature of the human body can improve the patient's compliance with the cleansing enema while ensuring the sealing effect. To ensure effective sealing of the anus by the sealing component 101, the water bladder of the sealing component 101 is configured as an annular bladder 1011. A cleaning tube 201 passes through the center of the annular bladder 1011, and the annular bladder 1011 forms an inverted umbrella-like structure by varying its radius in height. That is, the inner diameter of the annular bladder 1011 gradually decreases from the inside of the anus to the outside of the anus. The inner diameter of the annular bladder 1011 changes less at the larger inner diameter positions, thus forming a gyro-like structure with a larger curvature at the upper edge and a smaller curvature at the lower edge. This results in a larger contact area between the upper part of the annular bladder 1011 and the skin inside the anus, while the radius of the lower part of the annular bladder 1011 near the internal anal sphincter is smaller. This allows the annular bladder 1011 to protect the internal anal sphincter through its shape while sealing. The annular bladder 1011 is connected to the worktable 300 through the water filling tube 1012, and its inflation and deflation are adjusted by the water filling part 303 of the worktable 300.

[0037] Preferably, such as Figure 1 and Figure 2As shown, the limiting unit 100 includes a care component 102 that can be placed on the outside of the anus. The care component 102 is based on a multi-layer structure to achieve cleaning and privacy protection of the outside of the anus. The care component 102 includes a care pad 1021 that directly contacts the structure outside the anus and the skin around the anus. The care pad 1021 includes an absorbent layer, a waterproof layer, and an odor-removing layer. The absorbent layer is configured as a water-absorbing material to absorb liquids or mixtures that may accidentally flow out of the anus. The waterproof layer prevents liquid from spreading further outward from the absorbent layer. The odor-removing layer is configured with a fragrance to improve the odor experience during the enema process. The absorbent layer and the waterproof layer can be configured as quick-replacement modules that are detachably connected to the odor-removing layer, serving as disposable items for enema cleaning or as part of the entire care process. The pad 1021 is a quick-change unit that is detachably connected to the airbag 1022. The airbag 1022 is connected to the inflation part 304 of the workbench 300 via the inflation tube 1023 to adjust its inflation and deflation state. The airbag 1022 is configured as a flat structure in the inflated state, so that the airbag 1022 can cover and support the nursing pad 1021. The nursing component 102, which consists of the airbag 1022 and the nursing pad 1021, is connected to the patient's waist and abdomen via the wearing part 1024 to ensure the fit between the nursing component 102 and the patient's anal skin. This prevents the nursing component 102 from exerting force on the cleaning tube 201 that passes through its center, thus avoiding a reduction in the effectiveness of the sealing component 101 connected to the cleaning tube 201.

[0038] like Figure 2 As shown, the cleaning unit 200 includes a cleaning tube 201 connecting the internal and external anal spaces. The cleaning tube 201 is divided into an internal anal tube 2011 and an external anal tube 2014. The external anal tube 2014 is a segment connecting the annular pouch 1011 to the worktable 300, while the internal anal tube 2011 is a segment connecting the deep part of the intestine to the worktable 300, such that the external anal tube 2014 surrounds part of the internal anal tube 2011. The sealing component 101 and the care component 102 of the limiting unit 100 are arranged around the external anal tube 2014. Specifically, the internal anal tube 2011 includes a posterior segment 2013 near the anus and an anterior segment 2012 away from the anus. The anterior segment 2012 and posterior segment 2013 form an area covering part of the patient's rectum and colon. To ensure the movement function of the anal tube 2011 in the intestine, the posterior segment 2013, which is mainly located in the rectum, can be made of a highly resilient material, while the anterior segment 2012, which needs to pass through the rectum and part of the colon, can be made of a more flexible material. High resilient means that the posterior segment 2013 remains basically straight in the rectum and has a low degree of deformability, while good flexibility means that the anterior segment 2012 has a high degree of deformability, which allows it to adapt to the curved and folded structure of the rectum and colon and achieve the target position for enema cleaning.

[0039] like Figure 2 and Figure 3As shown, the cleaning tube 201 is equipped with a flushing assembly 202 and a back suction assembly 203. The flushing assembly 202 pumps cleaning liquid or medicinal liquid into the intestine through a pipe connected to the cleaning adjustment unit 301 of the workbench 300, soaking, refining, dissolving and flushing the intestinal contents to form a small particle mixture. The back suction assembly 203 discharges the mixture from the intestine through a pipe connected to the back suction adjustment unit 302 of the workbench 300 to form a processing cycle.

[0040] Preferably, such as Figure 3 As shown, the flushing assembly 202 includes a plurality of flushing tubes 2021 disposed within the cleaning tube 201. One end of each flushing tube 2021 is connected to the cleaning adjustment section 301 of the workbench 300, and the other end of each flushing tube 2021 is connected to a flushing port 2022 disposed on the surface of the anal tube 2011. The flushing tubes 2021 and the corresponding flushing ports 2022 form a plurality of flushing channels. The cleaning adjustment section 301 of the workbench 300 pumps cleaning fluid or medicine into the flushing tubes 2021. The flushing tubes 2021 disposed within the cleaning tube 201 provide a channel for the cleaning fluid to flow from outside the anus to inside the anus, so that the cleaning fluid in the flushing tubes 2021 can be sprayed out from the flushing ports 2022 disposed on the surface of the cleaning tube 201, thereby forming a flow of fluid to flush the internal space and the inner wall of the intestine. To ensure unidirectional flow of the cleaning solution or medication within the flushing tube 2021 and prevent backflow, a one-way valve 2023 is arranged inside the flushing tube 2021 near the flushing port 2022. This means that the resistance to the flow of the cleaning solution or medication from the flushing tube 2021 into the intestine is minimal. Under the structural obstruction of the one-way valve 2023 and the pressure inside the flushing tube 2021, the mixed fluid in the intestine is unlikely to flow back from the intestinal space into the flushing tube 2021. The one-way valve 2023 can be a three-valve or four-valve structure.

[0041] To ensure that the flushing assembly 202 can effectively clean the intestinal space and intestinal wall structure, and to ensure that the solids in the intestinal contents mixture are refined to a degree that can pass relatively smoothly through the suction assembly 203 pipe; especially since the anterior section 2012 of the anal tube 2011 is located near the junction of the rectum and sigmoid colon, when the patient's enema cleaning position is the commonly used left lateral position, the sigmoid colon and descending colon are the lowest structures in the intestinal space, and the sigmoid colon has a complex inner wall structure and is located at the junction of the intestines, where intestinal contents are prone to accumulate and cannot enter the rectum for excretion, in this application, the flushing assembly 202 is configured with several flushing channels in a manner that can form flushing fluid flows acting on different locations inside the intestine. The flushing channels form flushing fluid flows with different spray angles through several flushing ports 2022 arranged on the surface of the anal tube 2011; the first direction is defined as the direction of the axis of the anal tube 2011 toward the inside of the intestine, the second direction is defined as the radial direction of the anal tube 2011, and the third direction is defined as the direction of the axis of the anal tube 2011 toward the outside of the intestine.

[0042] Specifically, the flushing channel includes: a first channel 2024, which forms a flushing fluid flow in a first direction to directly flush the intestinal space to refine and agitate the intestinal contents and intestinal contents mixture; under normal conditions, the axis of the cleaning tube 201 is approximately coincident with the intestinal axis, and the flushing port 2022 corresponding to the first channel 2024 is located at one end of the tube front section 2012 near the intestinal interior; the flushing port 2022 can be a large-sized spray port arranged at the center of the front axis of the tube front section 2012, or it can be arranged around the tube front section. The tube 2012 has several small-sized jet nozzles arranged in a ring around its axis, or a combination of both, forming a combined jet nozzle with small-sized jet nozzles surrounding a large-sized jet nozzle; a second channel 2025 is used to generate a flushing fluid flow in a second direction to flush intestinal contents adhering to the intestinal wall. The flushing nozzles 2022 corresponding to the second channel 2025 are located near the front end of the tube 2012. Several flushing nozzles 2022 are arranged around the axis of the tube 2012 on the radial surface of the tube 2012, so that the second channel 2025... The corresponding flushing port 2022 can form a radial jet port with a circumferential angle of 360 degrees by means of its arrangement around the axis of the tube front section 2012; the third channel 2026 is used to form a flushing fluid flow towards the first direction and the second direction. The third channel 2026 laterally flushes the intestinal wall and the intestinal space based on the flushing fluid flow that is inclined at an angle and biased towards the first direction. The flushing ports 2022 corresponding to the third channel 2026 are set on the radial surface of the tube front section 2012 near the front end. Several flushing ports 2022 surround the tube front section 2012. The axis forms an inclined jet nozzle with a circumferential angle of 360 degrees and biased towards the first direction; the fourth channel 2027 is used to form a flushing fluid flow between the second and third directions. The fourth channel 2027 can flush the intestinal space and intestinal wall based on the flushing fluid flow with an angled inclination and biased towards the third direction. The flushing port 2022 of the fourth channel 2027 is arranged on the radial surface of the tube front section 2012. Several flushing ports 2022 form an inclined jet nozzle with a circumferential angle of 360 degrees and biased towards the third direction around the axis of the tube front section 2012.

[0043] For example, such as Figure 3As shown, when the flushing ports 2022 of the flushing channels are arranged as follows: the flushing port 2022 of the first channel 2024 is located at the front end of the tube section 2012; the flushing port 2022 of the second channel 2025 is located on the radial surface of the tube section 2012; the flushing port 2022 of the third channel 2026 is located on the radial surface of the tube section 2012 near the front end and between the flushing ports 2022 of the second channel 2025 and the first channel 2024; and the flushing port 2022 of the fourth channel 2027 is located on the radial surface in the middle of the tube section 2012. The first channel 2024 is mainly for the internal space of the intestine, and when the intestinal contents are not completely soaked in the cleaning solution... During the decomposition and refinement process, the flushing fluid flow of the first channel 2024 is directed towards the intestinal axis, allowing the flushing fluid to directly wash the intestinal contents mixture. This causes larger intestinal contents to be decomposed and refined under the action of the flushing fluid flow. The second channel 2025 primarily targets the intestinal wall. When intestinal contents adhere to folds or bends within the intestine, the flushing fluid flow of the first channel 2024 may not be able to directly reach them. The turbulent intestinal contents mixture continuously brings new admixtures. Therefore, the radial flushing fluid flow of the second channel 2025 can assist the flushing fluid flow of the first channel 2024 in forming a mutually perpendicular flushing process. The third channel 2026 and the fourth channel 202... The flushing fluid flow of tube 7 primarily targets directions not covered by the first channel 2024 and the second channel 2025. The directional flushing fluid flow can coordinate with the fluid flow of the first channel 2024 and the second channel 2025 to form a circumferential flushing fluid flow targeting different locations. The flushing fluid flows from the first channel 2024 to the fourth channel 2027 can also form an intelligent cleaning mode suitable for different intestinal states by controlling the flushing time and flushing parameters. Because the anterior end of the tube segment 2012 is located near the colon, close to the structure with the lowest height on the left side of the enema cleaning, a large amount of intestinal contents mixture accumulates here. In addition, the intestinal connection structure and the shape of the intestinal wall are relatively complex here. When the intestinal contents mixture accumulates in the tube segment 201... When accumulation occurs at the colon and flow is obstructed, the single flushing direction in the prior art is difficult to meet the needs of unblocking, refining, and side cleaning. However, in this application, the flushing fluid flows of the first channel 2024 and the third channel 2026 cooperate. The flushing fluid flow directed or biased towards the first direction can form an impact flow and create a vortex in the intestinal space, thereby stirring and dispersing the accumulated intestinal contents mixture. At the same time, large-sized substances in the intestinal contents mixture intermittently contact the impact flow during the flow process, causing the large-sized substances to be gradually refined by the erosion of the impact flow or vortex during the movement. This solves the problem of poor enema cleaning caused by the accumulation of a large amount of undecomposed large-sized intestinal contents in the colon.The second channel 2025 and the fourth channel 2027 provide a tendency for the intestinal contents mixture to move towards the rectum. Specifically, the combined impact flow from the second channel 2025 and the fourth channel 2027 is biased towards a third direction, which can disturb the intestinal contents mixture towards the rectum. The impact flow from the second channel 2025 and the fourth channel 2027, combined with the flushing flow from the first channel 2024 and the third channel 2026, forms impact disturbances towards the third and first directions respectively. This can significantly accelerate the refinement process of the intestinal contents, thus solving the problem of accumulation or deposition of the intestinal contents mixture at the junction of the colonic bends.

[0044] like Figure 3 As shown, to ensure that the intestinal contents mixture after being refined by the flushing component 202 can be smoothly discharged from the body through a closed channel, that is, the intestinal contents mixture is discharged from the body without passing through the anus and without contacting air, this application provides a back suction component 203. The back suction component 203 includes several recovery tubes 2031 disposed in the cleaning tube 201. One end of the recovery tube 2031 is connected to the back suction adjustment part 302 of the workbench 300. A control valve is arranged on the recovery tube 2031 near the back suction adjustment part 302. The other end of the recovery tube 2031 is connected to the back suction port 2032 disposed on the surface of the cleaning tube 201. The working pressure of the back suction adjustment part 302 is less than the pressure of the intestinal space, so that the intestinal contents mixture during enema cleaning can be discharged to the back suction adjustment part 302 outside the body through the recovery channel formed by the back suction port 2032 and the recovery tube 2031 to form a closed treatment process, avoiding the intestinal contents mixture from polluting the environment, thereby improving the intestinal cleaning working environment and reducing the pressure and workload of air handling and disinfection.

[0045] Preferably, the recovery component 203 can also serve as a channel for assisting intestinal gas expulsion. For example, in cases where a patient experiences abdominal distension and no gas expulsion after abdominal surgery, the recovery tube 2031 of the recovery component 203 can isolate the external environment and connect the inside of the intestine with the back suction adjustment unit 302. When the working pressure of the back suction adjustment unit 302 is lower than the pressure inside the intestine, the gas inside the intestine can be discharged to the back suction adjustment unit 302 through the recovery tube 2031. This ensures that the back suction component 203 is sealed during the process of assisting intestinal gas expulsion without leakage, which can effectively improve air quality and treatment experience. This allows the device to perform multiple functions such as gas expulsion, enema, and intestinal drug administration, significantly improving the applicability of the device.

[0046] Preferably, such as Figure 3As shown, the suction port 2032 of the suction assembly 203 is located in the posterior section 2013 of the internal anal tube 2011. To ensure that the intestinal contents mixture can pass smoothly through the suction port 2032 into the recovery tube 2031, the suction port 2032 is positioned near the annular sac 1011 in the posterior section 2013, making the suction port 2032 located at the position closest to the outside of the space blocked by the annular sac 1011. Specifically, the outer surface of the posterior section 2013 and the surface of the annular sac 1011 constitute the suction port 2032, such that the cross-section of the suction port 2032 is the cross-section of the external anal tube 2014 minus the cross-section of the internal anal tube 2011. The suction port 2032, formed by the outer surface of the internal anal tube 2011 and the outer surface of the annular sac 1011, can fully utilize the local expansion space generated by the blockage of the annular sac 1011, that is, the effect of the annular sac 1011 on the intestinal wall. The force creates a relatively stable space at this location, suitable for the mixing of intestinal contents to enter the suction tube from this position. Compared with the design of opening holes in the tube, the method of this application significantly improves the size and curvature of the suction port 2032. That is, the edge of the suction port 2032 is the surface of the exchange capsule and the outer surface of the anal tube 2011, so that the intestinal mixture discharged from the colon to the rectum can pass smoothly through the suction port 2032 without any dead flow corners, which can significantly improve the recovery efficiency of the intestinal contents mixture. The inner side of the annular capsule 1011 is the part of the external anal tube 2014 that extends to the inner side of the annular capsule 1011. The size of the internal anal tube 2011 is smaller than the size of the external anal tube 2014. The interior of the internal anal tube 2011 is mainly used to surround several flushing tubes 2021, while the external anal tube 2014 is used to surround the internal anal tube 2011 and the recovery tube 2031 to form a closed processing channel. The internal anal tube 2011 can be coaxially arranged with the external anal tube 2014, so that the internal anal tube 2011 and the external anal tube 2014 can form a circumferentially uniform suction port 2032, that is, the distance from the outer surface of the internal anal tube 2011 to the inner surface of the internal anal tube 2011 is equal. The uniformly sized suction port 2032 can ensure the uniformity of the circumferential flow of the intestinal contents mixture and improve the recovery efficiency. In addition, the internal anal tube 2011 can also be arranged close to the edge of the external anal tube 2014, so that the internal anal tube 2011 and the external anal tube 2014 form a channel with a larger local passage size, which can effectively improve the permeability of the intestinal contents mixture.

[0047] Preferably, when the volume of the intestinal contents mixture transferred from the colon to the rectum exceeds the transport capacity of the suction assembly 203, the intestinal contents mixture will accumulate at this point, and some intestinal contents may deposit and block the suction port 2032. To ensure good passage of the intestinal contents mixture at the suction port 2032, the cleaning assembly is provided with a fifth channel 2028 and a sixth channel 2029 near the suction port 2032 in the rear section 2013 of the anal tube 2011. The fifth channel 2028 is used to generate a flushing fluid flow biased in the first direction, and the sixth channel 2029 is used to generate a flushing fluid flow biased in the third direction. The flushing flow, biased towards the first direction, can disturb the intestinal contents mixture near the suction port 2032, causing the intestinal contents deposited near the suction port 2032 to float under the action of the flushing flow and re-form a more uniform intestinal contents mixture. The flushing flow biased towards the third direction works in conjunction with the flushing flow biased towards the first direction to flush the intestinal contents entering the suction port 2032 to promote its passage through the suction port 2032. The flushing flow of the fifth channel 2028 and the sixth channel 2029 can not only further refine the size of the intestinal contents, but also increase the liquid ratio in the intestinal contents mixture, thereby improving the fluidity and permeability of the intestinal contents mixture.

[0048] Specifically, several flushing ports 2022 of the fifth channel 2028 and the sixth channel 2029 are arranged around the axis of the rear section 2013 of the tube. When the internal anal tube 2011 is arranged close to the inner edge of the external anal tube 2014 and the arrangement plane of the flushing ports 2022 of the fifth channel 2028 is staggered with the arrangement plane of the flushing ports 2022 of the sixth channel 2029, the flushing ports 2022 arranged near the contact position of the internal anal tube 2011 and the external anal tube 2014 are smaller in size, while those arranged far from the internal anal tube 2011 and the external anal tube 2014 are smaller. The larger size of the flushing port 2022 at the 2014 contact position makes the flow rate of the flushing port 2022 in the fifth channel 2028 and the sixth channel 2029 positively correlated with the size of the flushing direction. That is, the farther the flushing port 2022 is from the intestinal wall, the larger the size of the flushing port 2022. This allows the flushing fluid flow in the fifth channel 2028 and the sixth channel 2029 to adapt to the amount of intestinal contents mixed in this direction, thereby improving the turbulence efficiency of the flushing fluid flow and further improving the passage efficiency of the intestinal contents mixture at the back suction port 2032.

[0049] Preferably, the cleaning unit 200 is connected to the workbench 300 via a cleaning tube 201. The cleaning tube 201 is equipped with an internal anal tube 2011 and an external anal tube 2014, which accommodate different tubes. The internal anal tube 2011 accommodates several flushing tubes 2021, and the external anal tube 2014 accommodates part of the internal anal tube 2011. A recovery tube 2031 is formed based on the outer and inner walls of the internal anal tube 2011, connecting from the inside of the annular sac 1011 to the workbench 300. In this configuration, the recovery tube 2031 forms a recovery channel for recovering the intestinal contents mixture based on the existing tubes. When the internal anal tube 2011 is arranged close to the inner edge of the external anal tube 2014, the axis of the internal anal tube 2011 and the axis of the external anal tube 2014 are spaced parallel, so that the recovery tube 2031... The recycling channel can form a larger recycling channel; in addition, the suction tube can also be arranged as an independent tube that gradually narrows from the suction port 2032 to run parallel to the anal tube 2011. The recycling channel formed by the independent tube can reduce the contamination range of the intestinal contents mixture, and the independent tube has relatively strong protection, which can improve the durability of the cleaning tube 201. The recycling tube 2031 is provided with a control valve near the suction adjustment section 302 to control the communication state between the recycling tube 2031 and the suction adjustment section 302. When the control valve is open, the recycling tube 2031 is connected to the suction control section, so that the intestinal contents mixture enters the suction adjustment section 302 through the recycling tube 2031 and is stored in a special box for transfer to a place for further processing.

[0050] like Figure 4As shown, the workbench 300 is equipped with a cleaning adjustment unit 301 for adjusting the liquid parameters of the flushing component. These liquid parameters include flushing pressure and flushing flow rate. The cleaning solution or medication is pumped by the cleaning adjustment unit 301 into several independently configured flushing pipes 2021. The flushing pipes 2021 spray the cleaning solution at a set angle through several corresponding flushing ports 2022 to clean the intestinal wall and internal space. The workbench 300 is also equipped with a back suction adjustment unit 302 for adjusting the operating parameters of the back suction component 203. These operating parameters include working pressure and negative pressure difference. The working pressure of the back suction adjustment unit 302 is lower than the internal intestinal pressure, allowing the intestinal contents mixture at the back suction port 2032 to be drawn based on the negative pressure difference. The enema automatically enters the recovery tube 2031, thereby entering the back suction adjustment unit 302 to form a closed treatment. The workbench 300 is also equipped with a water-filling unit 303 for adjusting the internal pressure of the annular bladder 1011 and an air-filling unit 304 for adjusting the internal pressure of the air bladder 1022. The water-filling unit 303 is connected to the annular bladder 1011 through a water-filling tube 1012 located inside the external anal tube 2014, thereby simplifying the tube structure through the patient's anus. The air-filling unit 304 is connected to the air bladder 1022 through an air-filling tube 1023, which is arranged along the outside of the external anal tube 2014 to ensure neat tube arrangement. The workbench 300 is also equipped with a display unit 305 for displaying the status information of the enema cleaning process and human-computer interaction.

[0051] To achieve the goal of intelligent cleaning and feedback control based on status information during the cleaning process, the intestinal cleaning device of this application is equipped with an intelligent unit 400. The main body of the intelligent unit 400 is arranged on the workbench 300. The intelligent unit 400 includes a controller 401 for calculation and analysis, a pressure monitoring component 402 for monitoring the pressure of the device's structural space and the intestinal environment, a flow monitoring component 403 for monitoring the flow rate of the flushing component 202 and the back suction component 203, an image monitoring component 404 for acquiring intestinal image information, a communication component 405 for sending status and control information of the cleaning process to the cloud or other device terminals, and a prompting component 406 for indicating the cleaning status. The prompting component 406 can also be used to indicate risk information to the operator.

[0052] Preferably, the pressure monitoring component 402 is equipped with a first pressure sensor to a sixth pressure sensor in the cleaning adjustment section 301 for monitoring the flushing pressure in the first channel 2024 to the sixth channel 2029, and a seventh pressure sensor in the tube front section 2012 for monitoring the pressure inside the intestine; the flow monitoring component 403 is equipped with a first flow sensor to a sixth flow sensor in the cleaning adjustment section 301 for monitoring the flushing flow rate in the first channel 2024 to the sixth channel 2029, and a seventh flow sensor in the back suction adjustment section 302; The regulating unit 301 controls the flushing flow rate and flushing pressure of the liquid entering the flushing tube 2021 through separately provided electric devices; the image monitoring component 404 includes a first camera element located near the annular sac 1011 in the rear section 2013 of the tube and a second camera element located in the front section 2012 of the tube. The first camera element is used to acquire image information of the intestinal contents mixture near the suction port 2032, and the second camera element is used to acquire image information of the intestinal contents mixture in the colon at the location of the front section 2012 of the tube. Based on image analysis, the intestinal cleanliness level can be obtained to guide the cleaning process of the cleaning unit 200.

[0053] The water-filling section 303 is also equipped with an eighth pressure sensor for monitoring the internal pressure of the annular bladder 1011, so that the internal pressure of the annular bladder 1011 can be stabilized at a set pressure through the water-filling tube 1012 and the electric device to maintain a good sealing effect; the air-filling section 304 is also equipped with a ninth pressure sensor for monitoring the internal pressure of the airbag 1022, so that the internal pressure of the airbag 1022 can be stabilized at a set pressure through the air-filling tube 1023 and the electric device, so that the nursing pad 1021 can fit tightly against the patient's skin based on the action of the airbag 1022 and the wearing part 1024.

[0054] Preferably, the intelligent unit 400 is configured with several working modes for the enema cleaning process, including a preparation stage of arranging the intestinal cleaning device and injecting the cleaning solution, a cleaning stage of the intelligent unit 400 controlling the workbench 300 to adjust the working parameters of the cleaning unit 200, and a self-cleaning stage.

[0055] For example, the intelligent unit 400 has a preparatory mode in the preparation stage. Medical staff set the internal pressure of the annular sac 1011 and the air sac 1022 on the display unit 305 and adjust it according to the patient's tolerance. The display unit 305 sets the amount of cleaning fluid injected, which is determined according to the patient's condition. The back suction regulating unit 302 is adjusted so that its working pressure maintains a pressure difference with the internal intestinal pressure to allow the air squeezed out by the cleaning fluid to be discharged to the recovery regulating unit through the recovery tube 2031. The cleaning regulating unit 301 injects the set amount of cleaning fluid into the patient's intestine while maintaining a first pressure and a first flow rate. The control valve of the recovery tube 2031 is closed, and the cleaning fluid remains in the patient's intestine for a period of time before defecation begins.

[0056] Furthermore, the intelligent unit 400 has a first working mode, a second working mode, and a third working mode during the cleaning phase. The first working mode is for a first type of patient with a normal intestinal contents mixture; the second working mode is for a second type of patient with intestinal contents mixtures with larger solid sizes; and the third working mode is for a third type of patient with a weak intestinal structure. For example, in the first working mode, the intelligent unit 400 controls the flushing pressure and flushing flow rate of the first channel 2024 to the sixth channel 2029. The flushing pressure of the first channel 2024 to the sixth channel 2029 is in the range of 1.01 to 1.10 times the first pressure, and the flushing flow rate of the first channel 2024 to the sixth channel 2029 is in the range of 1.0 to 1.5 times the first flow rate. That is, when the first pressure is 1.01 times the initial pressure inside the intestine, the flushing pressure of the first channel 2024 to the sixth channel 2029 can be... The cleaning effect can be improved by adjusting the flow rate within a certain range. Since the injection speed of the cleaning fluid is relatively slow, the injection volume during the cleaning stage can be appropriately increased to improve cleaning efficiency. In the second working mode, the intelligent unit 400 controls the rinsing pressure and rinsing flow rate of the first channel 2024 to the sixth channel 2029. The rinsing pressure of the first channel 2024 to the sixth channel 2029 is in the range of 1.02 to 1.15 times the first pressure, and the rinsing flow rate of the first channel 2024 to the sixth channel 2029 is in the range of 1.2 to 1.8 times the first flow rate. In the third working mode, the intelligent unit 400 controls the rinsing pressure and rinsing flow rate of the first channel 2024 to the sixth channel 2029. The rinsing pressure of the first channel 2024 to the sixth channel 2029 is in the range of 1.00 to 1.08 times the first pressure, and the rinsing flow rate of the first channel 2024 to the sixth channel 2029 is in the range of 1.0 to 1.3 times the first flow rate. Specifically, depending on the position and flushing direction of the first channel 2024 to the sixth channel 2029, the flushing pressure and flushing flow rate of the first channel 2024 to the sixth channel 2029 can be set or adjusted within the corresponding range by the display unit 305 of the worktable 300. For example, the sixth channel 2029 acts on the position of the rear section 2013 near the back suction port 2032, mainly used to stir the intestinal contents mixture and make it smoothly enter the recovery tube 2031. Then the flushing pressure and flushing flow rate of the sixth channel 2029 can be set to a larger value within the corresponding range to ensure smooth flow.

[0057] The device has a self-cleaning mode during the self-cleaning phase. After the device completes the enema cleaning and passes the inspection, the device's intelligent unit 400 controls the cleaning unit 200 to perform self-cleaning operations. For example, the flushing component 202 activates some of the channels from the first channel 2024 to the sixth channel 2029 to participate in the self-cleaning operation. The generated liquid is discharged into the back suction adjustment unit 302 through the back suction component 203. This allows the device to further consolidate the intestinal cleaning effect while cleaning the part of the device inserted into the body and related channels, which can reduce the difficulty and workload of subsequent cleaning of the device.

[0058] Preferably, the controller 401 of the intelligent unit 400 receives pressure information transmitted by the pressure monitoring component 402, which may include the flushing pressure of the flushing tube 2021, the intestinal pressure, the working pressure of the back suction adjustment unit 302, the internal pressure of the annular sac 1011, and the internal pressure of the air sac 1022; the controller 401 receives flow information transmitted by the flow monitoring component 403, including the flushing flow rate of the flushing tube 2021 and the flow rate of the recovery tube 2031; the controller 401 receives intestinal image information transmitted by the image monitoring component 404, including a first image near the back suction port 2032 acquired by the first camera element and a second image of the colon position acquired by the second camera element.

[0059] The controller 401 of the intelligent unit 400 controls the cleaning unit 200 and the workbench 300 to automatically switch working modes based on the received pressure information, flow information, and image information to achieve intelligent feedback cleaning operations. The specific steps are as follows:

[0060] (1) Prepare the enema solution, commonly using physiological saline and / or 0.1%-0.2% soapy water, with a liquid temperature of 39-41℃; after the patient has undergone the enema, position them on their left side. Unfold the cleaning tube 201 of the device, ensuring the components are tightly connected. At this point, the annular balloon 1011 and the air balloon 1022 are in their initial state. Slowly insert the lubricated anal tube 2011 into the patient's body until the nursing pad 1021 and the air balloon 1022 are in contact with the patient's anal skin. Wear the wearing part 1024 around the patient's waist to ensure that the annular balloon 1011 and the nursing pad 1021 are in close contact with the patient's skin. The unit 300 activates the water-filling section 303 and the air-filling section 304 respectively, and the internal pressure of the annular bladder 1011 and the air bladder 1022 reaches the pressure value set by empirical data or determined by the patient's tolerance, so that the cleaning unit 200 can establish a stable connection with the patient; the internal pressure information of the annular bladder 1011 and the air bladder 1022 is displayed on the display section 305 and the pressure value can be adjusted by the buttons; the depth of the anal tube 2011 inserted into the patient's body is 10-20mm, and the appropriate cleaning unit 200 is selected according to the patient's body size to ensure that the front section 2012 of the anal tube 2011 can be placed near the sigmoid colon.

[0061] (2) When the intelligent unit 400 is in standby mode, the control valve of the back suction assembly 203 is opened to expel the gas squeezed out of the intestine due to the injection of cleaning fluid. The back suction regulating assembly adjusts the working pressure, which is slightly lower than the initial pressure inside the intestine, so that the working pressure of the back suction regulating unit 302 and the pressure inside the intestine are maintained at a first negative pressure difference. For example, the first negative pressure difference can be 0.1-0.5 kPa, so that the gas squeezed out of the intestine by the cleaning fluid can be discharged to the back suction regulating unit 302 through the back suction assembly 203. The cleaning regulating assembly is activated to inject cleaning fluid into the patient's intestine. The cleaning fluid should be injected into the intestine at low pressure and low rate. The pressure inside the intestine transmitted to the display unit 305 of the workbench 300 by the seventh pressure sensor is observed. Since there is a sealing component 101 at the anus, the set amount of cleaning fluid is injected while ensuring that the pressure inside the intestine is within a safe value and leaving a certain safety margin. After the patient maintains the prone position for 5-10 minutes, he / she is transferred to the defecation position. The defecation position can be a semi-reclining position with the abdomen higher than the anus, so that the patient does not need to get out of bed. This makes the device suitable for patients who have difficulty moving or are unable to move.

[0062] (3) When the patient is in a defecation position, the patient category is determined based on the information obtained by the image monitoring component 404 and the patient's past medical data. For the first category of patients, the intelligent unit 400 performs cleaning operations in the first working mode, and the back suction adjustment unit 302 adjusts the working pressure to maintain a second negative pressure difference with the intestinal pressure. The flushing adjustment unit adjusts the flushing pressure and flushing flow rate of the first channel 2024 to the sixth channel 2029 to perform cleaning operations. When the first image and the second image monitored by the image monitoring component 404 both meet the cleaning level requirements, the intelligent unit 400 controls the cleaning unit 200 to enter the self-cleaning mode. For the second category of patients, the intelligent unit 400 first activates the second working mode, and the back suction adjustment unit 302 adjusts the working pressure. The intelligent unit 400 adjusts the working pressure to maintain a third negative pressure difference with the intestinal pressure. When the image information acquired by the image monitoring component 404 is close to that of the first type of patient, the intelligent unit 400 switches to the first working mode to continue cleaning. When both the first and second images monitored by the image monitoring component 404 meet the cleaning level requirements, the intelligent unit 400 controls the cleaning unit 200 to enter the self-cleaning mode. For the third type of patient, the intelligent unit 400 activates the third mode, and the back suction adjustment unit 302 adjusts the working pressure to maintain a fourth negative pressure difference with the intestinal pressure. When both the first and second images monitored by the image monitoring component 404 meet the cleaning level requirements, the intelligent unit 400 controls the cleaning unit 200 to enter the self-cleaning mode.

[0063] (4) Monitor the intestinal pressure during the cleaning process to ensure it is within a safe range. When the intestinal pressure exceeds the first threshold, reduce the flushing pressure and / or flushing flow rate of at least some of the channels from the first channel 2024 to the sixth channel 2029 to restore the intestinal pressure to a reasonable range. When the intestinal pressure exceeds the second threshold, the cleaning unit 200 temporarily injects cleaning fluid and alarms through the prompt component 406 of the workbench 300 to remind medical staff to check that the device has eliminated the problem.

[0064] (5) When the intestinal cleanliness meets the requirements, the intelligent unit 400 activates the self-cleaning mode, the back suction adjustment unit 302 adjusts the working pressure so that its working pressure and the intestinal pressure maintain the fifth negative pressure difference, the flushing adjustment unit activates some of the channels from the first channel 2024 to the sixth channel 2029 to participate in the self-cleaning operation, and the generated liquid is discharged into the back suction adjustment unit 302 through the back suction component 203.

[0065] (6) After the closed enema cleaning is completed, water and air are released from the circular bag 1011 and the air bag 1022 respectively, the nursing pad 1021 is cleaned up, the device is slowly removed from the body and cleaned and disinfected.

[0066] It should be noted that the specific embodiments described above are exemplary, and those skilled in the art can devise various solutions inspired by the disclosure of this invention. These solutions all fall within the scope of this invention and its protection. Those skilled in the art should understand that this specification and its accompanying drawings are illustrative and not intended to limit the scope of the claims. The scope of protection of this invention is defined by the claims and their equivalents.

Claims

1. A multifunctional intestinal cleansing device, characterized in that, include: A limiting unit for connecting and limiting the device to the patient's body, the limiting unit being based on an inflatable and / or water-filled bladder located inside and outside the patient's anus to block the normal defecation passage; A cleaning unit for cleaning the inside of the intestines and delivering cleaning and recovery fluids; the cleaning unit is equipped with a cleaning tube that replaces the normal defecation channel. The cleaning tube of the cleaning unit is connected to the workbench, and the working parameters of the rinsing channel and the recovery channel are controlled and adjusted by the intelligent unit set on the workbench to form a working mode for different intestinal cleaning states. When the cleaning tube is equipped with an internal anal tube and an external anal tube extending to different locations in the patient's intestines, the internal and external anal tubes form flushing channels and recovery channels respectively, with the internal anal tube partially surrounded by the external anal tube. The cleaning unit is equipped with a flushing assembly for introducing the cleaning solution into the intestines. The flushing assembly is configured with several flushing channels to form flushing fluid flows acting on different locations inside the intestines. The flushing channels form flushing fluid flows with different spray angles through several flushing ports arranged on the surface of the internal anal tube. The flushing channel includes several sub-channels acting on different locations of the patient's intestines. These include a first channel located at the anterior end of the tube targeting the internal intestinal space, a second channel targeting the intestinal wall, and a fifth and sixth channel located at the posterior end targeting the mixture of intestinal contents near the suction port. When the internal anal tube covers the rectum and extends into the colon, the portion of the tube inserted into the body is divided into an anterior and posterior section based on its placement. The first and second channels form a combined flushing flow that agitates the intestinal contents and flushes the intestinal wall, based on flushing fluid jets sprayed in mutually perpendicular directions. When the anal tube is combined with a ring-shaped sac to form a suction port at the posterior end, the fifth channel is used to generate a flushing fluid flow biased towards the first direction to act on the intestinal space and intestinal wall above the suction port, and the sixth channel is used to generate a flushing fluid flow biased towards the third direction to act on the suction port and the intestinal space around the suction port. When the anal tube at the suction port is arranged close to the inner surface of the external anal tube, the flushing ports of the fifth and sixth channels are arranged in a non-uniform manner in the circumferential direction on the surface of the posterior end of the tube near the suction port, so that the flushing ports close to the axis of the external anal tube form a non-uniformly sprayed flushing fluid flow in the circumferential direction with a larger size or higher arrangement density compared to the flushing ports far from the axis of the external anal tube.

2. The apparatus according to claim 1, characterized in that, When the cleaning tube (201) forms a closed flushing channel and a recovery channel by connecting its two ends to the patient's intestine and the worktable (300) respectively, the anal tube (2011) arranged inside the cleaning tube (201) can extend to the colon, allowing the anal tube (2011) to deliver the cleaning solution over at least a portion of the rectum to the colon; wherein, The external anal tube (2014), which surrounds a portion of the length of the internal anal tube (2011), is able to extend to the inside of the anus and cooperate with the outer surface of the internal anal tube (2011) to form at least a portion of the retraction channel.

3. The apparatus according to claim 2, characterized in that, The anterior segment (2012) can cover at least a portion of the structure of the colon and the posterior segment (2013) can cover at least a portion of the structure of the rectum, wherein the anterior segment (2012) and the posterior segment (2013) are configured in a manner that differs in flexibility.

4. The apparatus according to claim 3, characterized in that, The flushing assembly (202) further includes a plurality of flushing tubes (2021) disposed inside the anal tube (2011), wherein each flushing tube (2021) is provided with a one-way valve (2023) for preventing backflow near the flushing port (2022), wherein, When the flushing port (2022) acts on different locations inside the intestine at different spray angles, one end of the flushing pipe (2021) is connected to several of the flushing ports (2022), and the other end of the flushing pipe (2021) is connected to the cleaning adjustment part (301) of the workbench (300), so that the flushing pipe (2021) and the corresponding flushing port (2022) can form several flushing channels with independently adjustable working parameters.

5. The apparatus according to claim 4, characterized in that, The limiting unit (100) is equipped with a blocking component (101) and a nursing component (102) respectively arranged on the inside and outside of the anus. The blocking component (101) includes an inflatable annular bladder (1011). The annular bladder (1011) is arranged such that its cross-sectional diameter gradually decreases from the inside to the outside, so that the annular bladder (1011) forms a top shape that is larger at the top and smaller at the bottom to adapt to the shape of the muscles on the inside of the anus when they are in a contracted state. The nursing component (102) includes a nursing pad (1021) that fits the anus and an air bladder (1022) that supports the nursing pad (1021).

6. The apparatus according to claim 5, characterized in that, The cleaning unit (200) is equipped with a back suction assembly (203) for discharging the intestinal recovery fluid. The back suction assembly (203) is equipped with a recovery tube (2031) for forming the recovery channel. The two ends of the recovery tube (2031) are respectively connected to a back suction port (2032) arranged inside the anus and a back suction adjustment part (302) arranged on the workbench (300). With the annular bladder (1011) of the sealing assembly (101) arranged on the outer surface of the external anal tube (2014) near the inner end of the anus, the rear section (2013) of the internal anal tube (2011) passes through the interior of the external anal tube (2014) and extends out of the body, such that the suction assembly (203) forms a suction port (2032) communicating with the recovery tube (2031) based on the outer surface of the annular bladder (1011) and the outer surface of the rear section (2013), wherein, When the rear section (2013) of the tube is arranged close to the inner surface of the external anal tube (2014), the recovery tube (2031) forms the recovery channel with a locally enlarged flow cross-sectional size based on the outer surface of the internal anal tube (2011) and the inner surface of the external anal tube (2014).

7. The apparatus according to claim 6, characterized in that, The third channel (2026) and the fourth channel (2027) are arranged in a manner that complements the flushing direction and flushing range of the first channel (2024) and the second channel (2025), such that the first channel (2024) to the fourth channel (2027) can agitate and flush the inside of the intestine based on the flushing fluid flow covering the first direction to the third direction.

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