Intelligent constant temperature control pressure anti-reflux intestinal flushing device

Abstract

This invention discloses an intelligent constant-temperature pressure-controlled anti-reflux intestinal flushing device, belonging to the field of medical device technology. It includes a liquid storage and heating unit, a delivery and pressure control unit, a flushing and drainage unit, and a control unit. The liquid storage and heating unit is connected to the delivery and pressure control unit via a pipeline, and the other end of the delivery and pressure control unit is connected to the flushing and drainage unit via a pipeline. The control unit is electrically connected to the liquid storage and heating unit and the delivery and pressure control unit. This invention can prevent sudden pressure increases that could damage the intestinal mucosa through closed-loop pressure control, maintaining stable pressure within a safe range to avoid intestinal injury. It offers enhanced comfort due to constant temperature control, significantly reducing the incidence of abdominal pain and spasms. It is effective, achieving a high rate of intestinal cleansing while shortening operation time. It is convenient with one-button start and preset pressure levels; it is quick to assemble and disassemble, easy to clean, and can be operated by a single person. It is reliable, providing stable continuous operation and timely alarm response, meeting the requirements for high-frequency clinical use.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an intelligent constant temperature and pressure controlled anti-reflux intestinal flushing device. Background Technology

[0002] Bowel irrigation is widely used in scenarios such as bowel preparation before colonoscopy, gastrointestinal treatment, chronic constipation care, and postoperative bowel rehabilitation. It is a routine procedure in gastroenterology, proctology, general surgery, and home care.

[0003] Existing intestinal flushing and enema devices generally have the following shortcomings:

[0004] 1) Pressure and flow are uncontrollable, relying mainly on gravity or manual squeezing, resulting in large pressure fluctuations, which can easily cause intestinal mucosal irritation, damage, spasms, or even perforation; the elderly and children have poor tolerance.

[0005] 2) Reflux and cross-infection: Relying solely on one-way valves, when abdominal pressure increases (coughing, changes in body position), fecal / sewage fluids can easily flow back and contaminate the pipeline and storage, causing pipeline contamination. Reuse is not safe enough and increases the probability of cross-infection.

[0006] 3) Lack of constant temperature control; low temperature liquids can easily cause abdominal pain and intestinal spasms; affecting the activity of the drug solution and the flushing effect.

[0007] 4) Insufficient measurement and monitoring: The volume of fluid intake and output is not accurately measured, which is not conducive to the observation and recording of the patient's condition.

[0008] 5) Lack of intelligent protection: No overpressure alarm, automatic pressure limiting and flow interruption, resulting in insufficient safety;

[0009] 6) Cumbersome operation: Flow rate and pressure need to be manually adjusted, resulting in poor compliance and stability.

[0010] 7) The structure is complex, making disassembly, cleaning, and sterilization inconvenient, and the cost of consumables is high.

[0011] Current technologies mostly focus on single-function improvements and fail to achieve integrated functions such as safe pressure control, anti-backflow, precise temperature control, metering and monitoring, and easy cleaning, making it difficult to meet the needs of clinical and home use for safe, comfortable, and efficient use. Summary of the Invention

[0012] The purpose of this invention is to provide an intelligent constant temperature and pressure control anti-reflux intestinal flushing device, which solves the problems of unstable pressure, high risk of reflux, lack of intelligent protection, and complicated operation in the prior art.

[0013] To achieve the above objectives, the present invention provides the following technical solution:

[0014] An intelligent constant temperature and pressure controlled anti-reflux intestinal flushing device includes a liquid storage and heating unit, a delivery and pressure control unit, a flushing and drainage unit, and a control unit. The liquid storage and heating unit is connected to the delivery and pressure control unit via a pipeline, and the other end of the delivery and pressure control unit is connected to the flushing and drainage unit via a pipeline. The control unit is electrically connected to the liquid storage and heating unit and the delivery and pressure control unit.

[0015] The liquid storage heating unit includes a liquid storage bottle, a heating module, and a temperature sensor. The liquid storage bottle is connected to the left inlet of the heating module through a pipeline, and the temperature sensor is located on the upper part of the heating module.

[0016] The delivery and pressure control unit includes a peristaltic pump, a pressure sensor, a flow sensor, a one-way valve, and an anti-backflow component. The lower outlet of the heating module is connected to the left inlet of the peristaltic pump through a pipeline. The pressure sensor and the flow sensor are arranged sequentially from left to right on the lower part of the peristaltic pump. The one-way valve is connected to the right side of the peristaltic pump, and the anti-backflow component is connected to the right side of the one-way valve.

[0017] The flushing and drainage unit includes a porous flexible flushing head, a drainage pipe, and a waste liquid bag. The one-way valve and the anti-backflow component are connected to the right side of the pipe and are connected to the lower part of the porous flexible flushing head. The drainage pipe is connected to the lower right side of the porous flexible flushing head, and the waste liquid bag is connected to the lower end of the drainage pipe.

[0018] Furthermore, the control unit includes a main unit, an operation panel, and an alarm module. The operation panel is connected to the upper part of the main unit, and the alarm module is connected to the right side of the main unit.

[0019] The main unit is electrically connected to the heating module, temperature sensor, pressure sensor, flow sensor, peristaltic pump, and alarm module, respectively.

[0020] Furthermore, a negative pressure check valve is connected to the side of the waste liquid bag via a pipe, and a suction tube is connected to the right side of the negative pressure check valve via a pipe.

[0021] The beneficial effects of this invention are as follows: This invention can prevent damage to the intestinal mucosa caused by sudden pressure increases through closed-loop pressure control, maintaining stable pressure within a safe range to avoid intestinal damage and eliminate contamination and infection; it offers enhanced comfort due to constant temperature control, significantly reducing the incidence of abdominal pain and spasms; it is effective, achieving a high rate of intestinal cleansing and shortening operation time; it is convenient with one-button start and preset pressure levels, suitable for both clinical and home use; it is quick to assemble and disassemble, easy to clean, and can be operated by a single person; and it is reliable, providing stable continuous operation and timely alarm response, meeting the requirements for high-frequency clinical use.

[0022] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0024] Figure 2 This is a structural schematic diagram of the flushing flow direction of specific components and devices according to an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of the structure of component 24 of the present invention.

[0026] Explanation of reference numerals in the attached diagram: 1. Liquid storage and heating unit; 2. Delivery and pressure control unit; 3. Flushing and drainage unit; 4. Control unit; 10. Liquid storage bottle; 11. Heating module; 12. Temperature sensor; 20. Peristaltic pump; 21. Pressure sensor; 22. Flow sensor; 23. Check valve; 24. Anti-backflow component; 30. Multi-hole flexible flushing head; 31. Drainage pipeline; 32. Waste liquid bag; 33. Negative pressure check valve; 34. Suction tube; 40. Main unit; 41. Operation panel; 42. Alarm module. Detailed Implementation

[0027] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be noted that the terms "center," "input end," "output end," "liquid inlet end," "liquid outlet end," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Please see Figure 1 A preferred embodiment of this application shows an intelligent constant temperature and pressure controlled anti-reflux intestinal flushing device, comprising a liquid storage and heating unit 1, a delivery and pressure control unit 2, a flushing and drainage unit 3, and a control unit 4. The liquid storage and heating unit 1 is connected to the delivery and pressure control unit 2 via a pipeline, and the other end of the delivery and pressure control unit 2 is connected to the flushing and drainage unit 3 via a pipeline. The control unit 4 is electrically connected to the liquid storage and heating unit 1 and the delivery and pressure control unit 2.

[0031] The liquid storage heating unit 1 includes a liquid storage bottle 10, a heating module 11, and a temperature sensor 12. The liquid storage bottle 10 is connected to the left liquid inlet of the heating module 11 through a pipeline, and the temperature sensor 12 is provided on the upper part of the heating module 11.

[0032] The delivery and pressure control unit 2 includes a peristaltic pump 20, a pressure sensor 21, a flow sensor 22, a one-way valve 23, and an anti-backflow component 24. The lower outlet of the heating module 11 is connected to the left inlet of the peristaltic pump 20 through a pipeline. The lower part of the peristaltic pump 20 is provided with a pressure sensor 21 and a flow sensor 22 from left to right. The right side of the peristaltic pump 20 is connected to a one-way valve 23, and the right side of the one-way valve 23 is connected to an anti-backflow component 24.

[0033] The flushing and drainage unit 3 includes a porous flexible flushing head 30, a drainage pipe 31, and a waste liquid bag 32. A pipe is connected to the right side of the one-way valve and the anti-backflow component 23 and is connected to the lower part of the porous flexible flushing head 30. The lower right side of the porous flexible flushing head 30 is connected to the drainage pipe 31, and the lower end of the drainage pipe 31 is connected to the waste liquid bag 32.

[0034] The control unit 4 includes a main unit 40, an operation panel 41, and an alarm module 42. The operation panel 41 is connected to the upper part of the main unit 40, and the alarm module 42 is connected to the right side of the main unit 40.

[0035] The main unit 40 is electrically connected to the heating module 11, temperature sensor 12, pressure sensor 21, flow sensor 22, peristaltic pump 20, and alarm module 42 to realize closed-loop control and abnormal alarm.

[0036] A negative pressure check valve 33 is connected to the side of the waste liquid bag 32 via a pipe, and a suction tube 34 is connected to the right side of the negative pressure check valve 33 via a pipe.

[0037] The anti-reflux component 24 of this invention is a multi-stage sealed anti-reflux structure. It has a flow guide cavity, an umbrella-shaped sealing valve core, an elastic reset component and an anti-siphon channel arranged in sequence inside. The whole is a medical silicone one-piece molded structure. It is connected in series with the front-end one-way valve 23 to form a two-stage anti-reflux system, realizing unidirectional fluid delivery and preventing intestinal contents from flowing back. It is safe and reliable and suitable for clinical and home care scenarios. When used with negative pressure drainage of drainage tube, it realizes unidirectional fluid flow and prevents intestinal contents from flowing back.

[0038] The porous flexible irrigation head 30 is made of medical-grade flexible silicone. The head is blunted and the side walls are evenly opened with lateral irrigation holes to expand the irrigation range and reduce intestinal wall irritation.

[0039] The main unit 40 is configured to control the flushing fluid temperature in a closed loop between 36℃ and 38℃, with temperature fluctuations ≤ ±0.5℃. The main unit 40 adjusts the peristaltic pump speed in a closed loop based on the real-time signal from the pressure sensor 21 to stabilize the pipeline pressure within the safe range of 5kPa to 25kPa. In case of overpressure, the main unit 40 automatically decelerates or stops the pump and alarms. The flushing flow rate is adjustable from 10mL / min to 100mL / min. The flow sensor enables liquid metering and flow rate calibration.

[0040] The control unit 4 has multiple protections against overpressure, overtemperature, pipeline blockage, and low liquid level. In case of abnormality, it will provide audible and visual alarms and simultaneously shut down for protection.

[0041] Figure 1 The dashed line in the middle represents an electrical control signal.

[0042] The alarm module 42 includes an indicator light / buzzer for alarm purposes.

[0043] The heating module 11 has a heating wire inside for heating.

[0044] Using a straw allows for adjustments to the suction level based on the patient's condition, and as a disposable consumable, it is more hygienic.

[0045] The suction tube was replaced with a vacuum pump, reducing manpower.

[0046] During use, the pre-filled flushing solution in the storage bottle 10 is heated to 37±0.5℃ by the heating module 11 and then uniformly delivered by the peristaltic pump 20 at a set flow rate (15–60mL / min). The pressure sensor 21 monitors the pipeline pressure in real time, and triggers the alarm module 42 with an audible and visual warning if the pressure exceeds the limit. The flow sensor 22 calibrates the actual flow rate deviation, and the one-way valve and anti-backflow component 23 ensure unidirectional flow and prevent backflow of intestinal contents. The porous flexible flushing head 30 distributes the solution evenly and adapts to the shape of the intestinal cavity. The waste liquid flows by gravity to the waste bag 32 through the drainage pipeline 31. Temperature, pressure, and flow data are uploaded to the host 40 synchronously and are traceable throughout the process, and the data are displayed in real time on the screen of the operation panel 41.

[0047] 1. The liquid storage and heating unit maintains a constant temperature for the flushing solution and monitors the temperature in real time. The delivery and pressure control unit uses a peristaltic pump with pressure and flow sensors to achieve closed-loop control and features a dual-stage anti-backflow structure to prevent intestinal contents from flowing back. The flushing and drainage unit uses a multi-hole flexible flushing head with an independent drainage pipeline to achieve simultaneous flushing and waste liquid discharge. The control unit adjusts the heating power and pump speed based on real-time temperature, pressure, and flow signals, and automatically alarms and executes protective actions in case of overpressure or overtemperature. This invention achieves integrated control of constant temperature, constant pressure, and constant flow, providing stable pressure, reliable anti-backflow, high comfort, and easy operation. It effectively reduces the risk of intestinal irritation and infection and is suitable for clinical bowel preparation, constipation care, and home rehabilitation.

[0048] 2. Dual-stage anti-backflow: The anti-backflow system is a dual-stage check valve + anti-siphon structure. The inlet liquid path has a one-way valve + the drainage path has negative pressure drainage, forming a "only inlet, no outlet, and direct discharge of waste liquid" system, which eliminates cross-contamination.

[0049] 3. Intelligent pressure control system: Real-time collection of intestinal pressure, closed-loop adjustment of pump speed, stabilizing within the safe range of 15–25 kPa, and immediately stopping and releasing pressure if it exceeds 30 kPa.

[0050] Pressure is monitored in real time. When the pressure exceeds the set safety threshold, the main control board controls the peristaltic pump to slow down or stop and activates an alarm.

[0051] 4. The rinsing head is a multi-porous rinsing head with side openings. It has a medical-grade silicone multi-porous flexible structure with uniform pore size and a lateral distribution to reduce intestinal wall irritation and expand the rinsing range.

[0052] Flow closed-loop calibration, temperature control fluctuation ≤ ±0.5℃, pressure fluctuation ≤ ±2kPa.

[0053] All pipelines and flushing heads are detachable and can be reused using disposable consumables or high-temperature and high-pressure sterilization.

[0054] 5. The control unit is equipped with multiple protections against overpressure, overtemperature, blockage, and low liquid level. When an abnormality occurs, the screen will display the warning, the machine will automatically stop, and an audible and visual alarm will sound.

[0055] 6. The control unit is configured as follows:

[0056] The temperature of the rinsing solution should be kept constant within the range of 36℃ to 38℃.

[0057] Control the pipeline pressure within the safe range of 5 kPa to 25 kPa;

[0058] The flushing flow rate is adjustable from 10 mL / min to 100 mL / min. It features influent and wastewater metering functions, influent and outfluent balance control, facilitating clinical monitoring and recording, and mode switching (children / adults / constipation / preoperative).

[0059] In summary, this invention provides an intelligent constant-temperature pressure-controlled anti-reflux intestinal flushing device. This device can prevent sudden pressure increases that could damage the intestinal mucosa through closed-loop pressure control, maintaining stable pressure within a safe range to avoid intestinal damage and prevent contamination and infection. It offers enhanced comfort due to constant temperature control, significantly reducing the incidence of abdominal pain and spasms. It is effective, achieving a high rate of intestinal cleansing while shortening operation time. It is convenient with one-button start and preset pressure levels, suitable for both clinical and home use. It is quick to assemble and disassemble, easy to clean, and can be operated by a single person. It is reliable, operating stably continuously with timely alarm response, meeting the requirements for high-frequency clinical use.

[0060] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The embodiments described above are merely illustrative of implementation methods of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An intelligent constant temperature and pressure controlled anti-reflux intestinal flushing device, characterized in that, The system includes a liquid storage heating unit (1), a delivery and pressure control unit (2), a flushing and drainage unit (3), and a control unit (4). The liquid storage heating unit (1) is connected to the delivery and pressure control unit (2) via a pipeline. The other end of the delivery and pressure control unit (2) is connected to the flushing and drainage unit (3) via a pipeline. The control unit (4) is electrically connected to the liquid storage heating unit (1) and the delivery and pressure control unit (2). The liquid storage heating unit (1) includes a liquid storage bottle (10), a heating module (11), and a temperature sensor (12). The liquid storage bottle (10) is connected to the left inlet of the heating module (11) through a pipeline. The temperature sensor (12) is provided on the upper part of the heating module (11). The delivery and pressure control unit (2) includes a peristaltic pump (20), a pressure sensor (21), a flow sensor (22), a one-way valve (23), and an anti-backflow component (24). The lower outlet of the heating module (11) is connected to the left inlet of the peristaltic pump (20) through a pipeline. The pressure sensor (21) and the flow sensor (22) are arranged sequentially from left to right on the lower part of the peristaltic pump (20). The one-way valve (23) is connected to the right side of the peristaltic pump (20), and the anti-backflow component (24) is connected to the right side of the one-way valve (23). The flushing and drainage unit (3) includes a porous flexible flushing head (30), a drainage pipe (31), and a waste liquid bag (32). The one-way valve and the anti-backflow component (23) are connected to the right side of the pipe and connected to the lower part of the porous flexible flushing head (30). The drainage pipe (31) is connected to the lower right side of the porous flexible flushing head (30), and the waste liquid bag (32) is connected to the lower end of the drainage pipe (31).

2. The intelligent constant temperature and pressure controlled anti-reflux intestinal flushing device as described in claim 1, characterized in that, The control unit (4) includes a host (40), an operation panel (41), and an alarm module (42). The operation panel (41) is connected to the upper part of the host (40), and the alarm module (42) is connected to the right side of the host (40). The host (40) is electrically connected to the heating module (11), temperature sensor (12), pressure sensor (21), flow sensor (22), peristaltic pump (20), and alarm module (42), respectively.

3. The intelligent constant temperature and pressure controlled anti-reflux intestinal flushing device as described in claim 1, characterized in that, The waste liquid bag (32) is connected to a negative pressure check valve (33) via a pipe on its side, and a suction tube (34) is connected to the right side of the negative pressure check valve (33) via a pipe.

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