Intelligent enema system and control method

Abstract

The present application relates to the technical field of medical devices, and provides an intelligent enema system and a control method, which comprise an adjustable-height buttock support frame, an enema liquid delivery assembly, a height detection module, a pressure detection module and a control module, the buttock support frame is used to support the height of the patient's buttocks and expose the anal region, the enema liquid delivery assembly comprises an enema liquid container, an enema pump and a delivery pipeline, the delivery pipeline is connected to an anal cannula, the height detection module is used to obtain the height value of the buttock support frame in real time, the pressure detection module is arranged on the delivery pipeline and is used to detect the liquid pressure in the enema process, and the control module is electrically connected with the height detection module, the pressure detection module and the enema pump. The present application automatically sets appropriate pressure parameters before the enema starts, thereby avoiding the lag problem of traditional dependence on in-vivo sensor feedback, effectively preventing intestinal impact, spasm or mucosal damage caused by excessively high initial pressure, and significantly improving the safety and comfort of treatment.

Description

Technical Field

[0001] This invention relates to the technical field of medical devices, specifically to an intelligent enema system and control method. Background Technology

[0002] Enemas are a common clinical treatment widely used for bowel cleansing, drug administration (such as retention enemas with traditional Chinese medicine), and constipation relief. Traditional enema procedures often rely on medical staff to manually control the infusion rate and pressure, which can lead to problems such as improper operation, large pressure fluctuations, and significant patient discomfort. In particular, during prolonged or high-dose enemas, excessive pressure can easily cause complications such as intestinal spasms, mucosal damage, or even perforation.

[0003] To improve the safety and automation of the enema process, several intelligent enema devices have emerged in recent years. For example, existing technology discloses a traditional Chinese medicine enema device, enema method, and automatic enema instrument. This device uses a "skin-like pressure sensor" on the outer surface of the anal cannula to detect the squeezing force F at the patient's anus and the internal rectal pressure P1 in real time. It then calculates the pressure difference ΔP by combining this with the liquid pressure P2 in the infusion tube. Based on the empirical formula Q0=b-k1ΔP-k2F, it calculates the optimal flow rate and adjusts the enema flow rate using an incremental digital PID control strategy. This scheme achieves closed-loop feedback control to a certain extent, thereby improving flow stability.

[0004] However, the aforementioned technologies still have the following shortcomings: First, the pressure sensor is directly attached to the anal cannula and inserted into the body, which not only increases patient discomfort but may also lead to detection errors due to sensor displacement, contamination, or signal drift, affecting control accuracy. Second, the existing technology requires the pressure sensor to be attached to the anal cannula and inserted into the body, which is an invasive monitoring method, easily causing patient discomfort, infection risk, or sensor displacement and failure. Third, clinical practice has found that the height of the patient's hip support (i.e., body position) directly affects the degree of anal exposure, intestinal direction, and compliance. For example, when the support is too low, the intestinal curvature is more pronounced, increasing resistance; when it is too high, it may cause tissue traction discomfort. Therefore, there is an urgent need for an intelligent enema system-level control method to solve the above problems. Summary of the Invention

[0005] This invention provides an intelligent enema system and control method, aiming to address the shortcomings of existing enema devices in lacking perception and response to patient position information, especially the problems of delayed response, large initial impact, and poor comfort caused by relying solely on invasive physiological parameter feedback for control in existing technologies. Specific implementation methods are as follows:

[0006] An intelligent enema system includes an adjustable-height hip support frame to support the patient's hip height and expose the anal area;

[0007] An enema fluid delivery assembly includes an enema fluid container, an enema pump, and a delivery line connected to an anal cannula;

[0008] A height detection module is used to obtain the height value of the hip support frame in real time;

[0009] A pressure detection module is installed on the delivery pipeline to detect the liquid pressure during the enema process;

[0010] The control module is electrically connected to the height detection module, the pressure detection module, and the enema pump, respectively.

[0011] The control module is configured to determine the corresponding enema response level based on the height of the hip support frame, and set an initial enema target pressure value based on the response level. During the enema process, the output of the enema pump is adjusted through pressure feedback to make the actual pressure approach the target pressure. When a change in height is detected, the response level is dynamically updated and the target pressure value is adjusted accordingly.

[0012] As a further aspect of the present invention, the response levels include a first level, a second level, and a third level;

[0013] When the height value is lower than the first threshold, it is set to the first level, corresponding to a lower target pressure;

[0014] When the height value is between the first threshold and the second threshold, it is set to the second level, corresponding to medium target pressure;

[0015] When the height value is greater than or equal to the second threshold, it is set to the third level, corresponding to a higher target pressure.

[0016] As a further aspect of the present invention, the control module employs an incremental digital PID control algorithm to adjust the operating speed of the enema pump, including calculating the deviation e(t) between the current actual pressure and the target pressure; calculating the control increment Δy(t) based on e(t), e(t-1), and e(t-2); and outputting a drive signal to adjust the pump speed to achieve pressure control.

[0017] As a further embodiment of the present invention, the control module is also configured to immediately stop the enema pump and activate an audible and visual alarm when the actual pressure is detected to exceed a preset maximum pressure threshold.

[0018] When an emergency stop command is received from the user, the pump body is shut down and the pressure relief passage is opened.

[0019] As a further aspect of the present invention, the control module adopts ramp-type transition control when adjusting the target pressure value.

[0020] As a further aspect of the present invention, the control module is also configured to record the start and end times of each operation, the height change curve of the hip support frame, and the target pressure and actual pressure change curve.

[0021] After the operation is completed, an operation log is generated and output via a touch screen or wireless communication module.

[0022] As a further embodiment of the present invention, the height adjustment mechanism of the hip support frame is integrated with the height detection module, and the height is detected by using an encoder, potentiometer or ultrasonic sensor.

[0023] Furthermore, this invention also provides an intelligent enema control method, applied to an enema system, the method comprising the following steps:

[0024] S1: Initialize the system and read the current height value H of the hip support frame;

[0025] S2: Map the height value H to the corresponding enema response level, and set the initial target pressure Ptarget according to the response level;

[0026] S3: Start the enema pump to begin injecting the enema solution, while the control module collects the actual pressure in the delivery pipeline in real time.

[0027] S4: Determine if Pactual exceeds the preset maximum safety threshold; if it does, immediately stop the enema pump and release pressure through the pressure relief valve;

[0028] S5: If Pactual does not exceed the maximum safety threshold, calculate the deviation between the actual pressure and the target pressure. When |Pactual-Ptarget|>Δ, use an incremental digital PID control algorithm to adjust the speed of the enema pump so that Pactual approaches Ptarget, where Δ is a preset pressure deviation tolerance threshold.

[0029] S6: Continuously monitor whether the height value H changes. If the change exceeds the set threshold, repeat step S2 to update the response level and target pressure Ptarget.

[0030] S7: When the amount of enema solution injected reaches the preset dose or the enema time reaches the set duration, stop the enema pump and record the data of this operation.

[0031] As a further aspect of the present invention, it also includes providing voice prompts for the current operation status and receiving pause, continue, or stop commands input by the user via keypad.

[0032] As a further aspect of the present invention, the method further includes statistically analyzing patient feedback information at different response levels during multiple operations, and calibrating the mapping relationship between response level and target pressure based on the feedback data.

[0033] Due to the adoption of the above technical solutions, the beneficial technical effects of the present invention are as follows:

[0034] 1. This invention detects the height of the hip support frame and establishes a predictive function for height, response level, and target pressure. It automatically sets appropriate pressure parameters before the enema begins, thereby avoiding the lag problem of traditional reliance on in-body sensor feedback. It effectively prevents intestinal impact, spasm, or mucosal damage caused by excessive initial pressure, thus significantly improving the safety and comfort of treatment.

[0035] 2. This invention integrates a height detection module into the hip support frame, eliminating the need to insert sensors into the body or attach them to the anal cannula. This enables non-contact acquisition of control parameters, thereby improving the system's hygiene and safety, as well as enhancing patient acceptance and comfort. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the enema device and the buttock support frame in a specific embodiment of the present invention;

[0037] Figure 2 This is a partial structural cross-sectional view of the hip support frame in a specific embodiment of the present invention;

[0038] Figure 3 This is a partial enlarged view of the hip support frame in a specific embodiment of the present invention;

[0039] Figure 4 The following is a flowchart of an intelligent enema control method in a specific embodiment of the present invention. Figure 1 ;

[0040] Figure 5 The following is a flowchart of an intelligent enema control method in a specific embodiment of the present invention. Figure 2 .

[0041] Explanation of reference numerals in the attached figures:

[0042] 100. Hip support frame; 200. Enema device.

[0043] 1. Base; 101. First slide rail; 2. Motor; 3. Bidirectional screw; 4. First slider; 5. Cylinder; 6. Seat plate; 7. Connecting rod; 701. Second slide rail; 8. Support rod; 801. Guide rail; 9. Support; 10. Support leg; 11. Foot plate; 12. Button; 13. Touch screen; 14. Delivery pipeline; 15. Insertion tube. Detailed Implementation

[0044] The specific embodiments of the present invention are described below with reference to the accompanying drawings and examples:

[0045] It should be noted that the structures, proportions, sizes, etc. illustrated in the accompanying drawings of this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0046] Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0047] Example 1, combined with Figures 1 to 5 As shown, this embodiment provides an intelligent enema system, including an adjustable height hip support frame 100, an enema fluid delivery assembly, a height detection module, a pressure detection module, and a control module. The control module is electrically connected to the height detection module, the pressure detection module, and the enema pump, thereby realizing intelligent control of the height detection module, the pressure detection module, and the enema pump.

[0048] Specifically, the hip support frame 100 is used to support the patient's hips and fully expose the anal area. It includes a base 1, two relatively movable seat plates 6, and a drive device for moving the seat plates 6. The drive device includes an opening and closing mechanism and a lifting mechanism. The opening and closing mechanism is used to drive the two seat plates 6 to move closer together or separate to adjust the degree of hip separation; the lifting mechanism is used to adjust the height of the seat plates 6 to adapt to the positioning needs of patients of different body types. By setting up the drive device, the hip support frame 100 can achieve horizontal opening and closing of the seat plates 6 and vertical height adjustment, thereby ensuring effective exposure of the anal area and providing ergonomic positioning support for subsequent enema operations, thus improving comfort and ease of operation during treatment.

[0049] The base 1 has a mounting cavity, and the opening and closing mechanism is housed within this cavity. The mechanism includes a bidirectional screw 3 rotatably connected to the base 1 and a motor 2 driven by the bidirectional screw 3. Each seat plate 6 is slidably mounted on the bidirectional screw 3 via a lifting mechanism. The lifting mechanism has a first slider 4, and the base 1 has a first slide rail 101 corresponding to the first slider 4. The first slider 4 is slidably disposed in the first slide rail 101 and screwed to the bidirectional screw 3. When the motor 2 drives the bidirectional screw 3 to rotate, it drives the first slider 4 to slide synchronously towards or away from each other along the first slide rail 101, thereby realizing the opening and closing movement of the two seat plates 6. The lifting mechanism includes a cylinder 5, the bottom end of which is connected to the first slider 4. A second slider is provided on the output end of the cylinder 5, and the second slider is disposed on a connecting rod 7 and slidably engaged with the connecting rod 7. The seat plate 6 is mounted on the second slider. When the cylinder 5 operates, it drives the second slider and the connecting rod 7 connected to the second slider to slide up and down, thereby driving the seat plate 6 to achieve vertical height adjustment.

[0050] In this embodiment, support rods 8 are vertically provided at the left and right ends of the base 1, and a horizontal connecting rod 7 connects the two support rods 8. The connecting rod 7 slides with the support rods 8 to form a stable guide structure. A second slide rail 701 is provided on the connecting rod 7, and a second slider is slidably embedded in the second slide rail 701, thereby realizing the smooth lifting and lowering of the seat plate 6 in the vertical direction.

[0051] As mentioned above, the opening and closing motion is driven by the opening and closing mechanism on the base 1. After the motor 2 starts, it drives the bidirectional screw 3 to rotate. Since the first slider 4 is threadedly connected to the bidirectional screw 3 and is guided by the first slide rail 101 on the base 1, when the bidirectional screw 3 rotates, the two first sliders 4 slide synchronously towards or away from each other in the first slide rail 101, thereby driving the cylinder 5 and the seat plate 6 connected to it to achieve the horizontal opening and closing action.

[0052] Meanwhile, due to the sliding engagement between the second slider and the second slide rail 701 on the connecting rod 7, the connecting rod 7 and its second slide rail 701 move synchronously during the horizontal movement of the first slider 4, ensuring that the second slider can still slide in the vertical direction while moving horizontally. Thus, the cylinder 5 can achieve synchronous opening and closing movements driven by the first slider 4 without hindering its own lifting function.

[0053] In this embodiment, a support 9 is connected to the front side of the base 1. Two supports 9 are provided and are symmetrically arranged with respect to the central axis of the base 1, forming a stable "N"-shaped support structure, thereby effectively improving the overall rigidity and anti-overturning ability of the hip support frame 100.

[0054] Each support 9 is hinged to an L-shaped support leg 10 adjacent to the base 1. The first end of the support leg 10 is hinged to the support 9 via a pivot. The end of the support leg 10 rests against the support 9 to form a stable inclined support state. The upper surface of the support leg 10, i.e. the support surface, is inclined from front to back, preferably with an inclination angle of 15° to 30° to accommodate the natural flexion posture of the human lower limb.

[0055] The inclined support surface allows the patient to place both feet on the higher part of the supporting leg 10, enabling moderate flexion and abduction of the hip joint, further promoting relaxation of the gluteal muscles and exposure of the anal area, creating favorable conditions for subsequent enema procedures. In addition, this foot support structure can effectively reduce the burden on the patient's thighs and lower back, thereby improving the comfort of maintaining the position for extended periods.

[0056] To ensure that the patient's feet can be stably placed on the support surface of the supporting leg 10 and to prevent slippage due to body position changes or muscle relaxation during treatment, this embodiment provides a footboard 11 on the support surface. The footboard 11 is located at the tail end of the supporting leg 10, and its structure is U-shaped, extending laterally along the support surface and bending upward, thereby forming a frame space with the support surface to limit the patient's feet.

[0057] Preferably, the footplate 11 is covered with an elastic cushioning layer, which can be a silicone layer or a non-slip pad to prevent the patient's foot from sliding, improve contact comfort, and avoid local pressure discomfort caused by prolonged placement.

[0058] Specifically, the height detection module is installed along the movement path of the cylinder 5. In this embodiment, the height detection module can be a pull-rope encoder. The pull-rope encoder is installed on the side of the cylinder 5 and on the base 1. Its pull rope is connected to the seat plate 6. The cylinder 5 drives the seat plate 6 to move up and down, so as to drive the encoder pull rope to move synchronously, thereby outputting a displacement signal in real time, which is the height value H.

[0059] Specifically, the system also includes an enema device 200, on which the enema fluid delivery component, pressure detection module, and control module are all integrated.

[0060] In this embodiment, the enema fluid delivery assembly includes an enema fluid container for holding traditional Chinese medicine preparations or other enema fluids; an enema pump for drawing the enema fluid, which is a peristaltic pump capable of precisely controlling the fluid flow and pressure to ensure a stable and controllable delivery process; and a delivery pipeline 14 connected to the outlet of the enema pump, extending to the outside of the enema device 200 and connected to an anal cannula 15, thereby delivering the enema fluid into the patient's intestine. The pressure detection module is integrated into the delivery pipeline 14 and arranged near the outlet of the enema pump. It uses a miniature pressure sensor to collect the actual pressure of the fluid in the pipeline in real time and transmit the signal to the control module.

[0061] In this embodiment, the control module is configured to determine the corresponding enema response level based on the height value H of the hip support frame 100, and set an initial enema target pressure value based on the response level. During the enema process, the actual pressure in the delivery pipeline 14 is collected in real time by the pressure detection module to adjust the output of the enema pump so that the actual pressure dynamically approaches the target pressure value. When the main controller detects that the height value H has changed and exceeds the preset threshold, the system automatically re-determines the response level and adjusts the target pressure value accordingly, thereby realizing dynamic pressure updates. Specifically, the control module includes a main controller, a touch screen 13, buttons 12, an alarm unit, and a communication interface. The main controller receives the real-time height value H from the encoder and determines the corresponding enema response level according to a preset mapping relationship, thereby setting the initial enema target pressure value. The touch screen 13 is installed on the operation panel of the enema device 200 and is used to display information such as the current height H of the hip support frame 100, the set target pressure Ptarget, the detected actual pressure Pactual, the injected dose, the operation progress, and the system status in real time. The buttons 12 include start / stop buttons and emergency stop buttons to support medical personnel to quickly input control commands, especially to immediately interrupt the enema operation in an emergency. The control module includes a buzzer and LED warning lights installed on the enema device 200, which automatically trigger an alarm when the system detects that the actual pressure exceeds the preset maximum safety threshold, the height signal is lost or communication is interrupted, the enema pump is blocked, or the flow is abnormal. The communication interface includes a USB wired interface and / or Wi-Fi wireless communication to enable data interaction between the enema device 200 and the hip support frame 100.

[0062] Furthermore, the enema device 200 is also equipped with an electromagnetic pressure relief valve, which is electrically connected to the main controller and located on the bypass branch of the delivery pipeline 14. When the system triggers an emergency stop or detects dangerous conditions such as overpressure or communication failure, the main controller immediately sends a command to open the electromagnetic pressure relief valve, quickly releasing the pressure in the pipeline, thereby ensuring the patient's safety.

[0063] In this embodiment, the control module uses an incremental digital PID control algorithm to adjust the operating speed of the enema pump to control the liquid pressure during the enema process. Specifically, the control process includes the following steps: First, the pressure deviation e(t) within the current control cycle is calculated, which is defined as the difference between the preset target pressure Ptarget and the actual pressure Pactual collected in real time by the pressure detection module, e(t) = Ptarget - Pactual. Then, based on the pressure deviations e(t), e(t-1), and e(t-2) of the current and previous two sampling cycles, the obtained control increment Δy(t) is superimposed on the pump control output value of the previous moment to generate the drive signal for the current cycle. This signal is then sent to the enema pump via analog output to adjust its speed, thereby causing the actual pressure Pactual to quickly and smoothly approach and stabilize at the target pressure Ptarget.

[0064] In actual use, the encoder on the hip support frame 100 transmits the measured height H of the seat plate 6 to the main controller in the enema device 200 in real time. The main controller determines the response level according to the preset mapping relationship and sets the initial target pressure Ptarget. After the enema is started, the speed of the enema pump is dynamically adjusted according to the Pactual feedback from the pressure detection module. If a change in height or abnormal pressure is detected, the system automatically adjusts the target value or triggers an alarm to stop the machine.

[0065] Furthermore, the delivery line 14 is made of flexible medical silicone tubing with graduated markings on its outer wall to facilitate observation of fluid flow by medical personnel. The anal cannula 15 is connected to the end of the delivery line 14 via a standard quick-connect interface, which can be a Luer connector or a snap-fit ​​quick connector, thereby achieving a reliable seal and convenient installation and removal of the pipeline.

[0066] Furthermore, the anal cannula 15 also has graduations on its outer wall, arranged along its length, to indicate the depth of insertion into the anus. These graduations help medical personnel accurately control the insertion depth, preventing intestinal irritation from excessive insertion or leakage from insufficient insertion, thus improving operational safety. Preferably, the anal cannula 15 is made of soft medical-grade silicone material, with a rounded tip and multiple side holes on its outer wall to promote uniform fluid distribution and reduce localized impact.

[0067] In this embodiment, the response levels include a first level, a second level, and a third level, which are used to characterize the enema pressure patterns required at different hip support heights.

[0068] Specifically, the main controller performs level determination based on the height value H output by the split buttock support frame 100. When the height value H is lower than the first threshold H1, it is set to the first level (L1), corresponding to a lower target pressure Ptarget. This level is applicable to the position where the patient's buttock position is lower and the degree of anal exposure is smaller, to avoid intestinal discomfort or spasm caused by excessive pressure. When the height value H satisfies H1 ≤ H < H2, it is set to the second level (L2), corresponding to a medium target pressure Ptarget. This level is applicable to the standard position, taking into account both the enema efficiency and the patient's comfort. When the height value H is greater than or equal to the second threshold H2, it is set to the third level (L3), corresponding to a higher target pressure Ptarget. This level is applicable to the operation scenario of high-position support and full anal exposure, ensuring that the liquid can still be injected smoothly under a higher gravitational potential energy and preventing reflux. The first threshold H1 and the second threshold H2 can be preset in the main controller. The target pressure values corresponding to different levels are stored in the parameter database of the control module, supporting the configuration of dedicated mapping templates according to different patient groups.

[0069] Furthermore, when the system detects that the height value H changes during the enema process and crosses the level threshold, the main controller dynamically updates the response level and correspondingly adjusts the target pressure value, and adopts a ramp-type transition adjustment, for example, changing by 1 kPa per second, so as to avoid the pressure mutation from stimulating the intestine and improve the smoothness and comfort of the treatment process.

[0070] Embodiment 2. This embodiment provides an intelligent enema control method applied to the enema system of the above Embodiment 1. This method executes the following enema control process.

[0071] Step 1: After the system is powered on, first execute the self-check program to confirm that each module is working properly. The control module reads the current height H of the split buttock support frame 100 as the basic data for body position state perception. Then start the enema pump to start injecting the enema solution into the patient's intestine. The control module continuously collects the signals output by the pressure detection module, and after filtering processing and calibration compensation, calculates the current actual liquid pressure Pactual.

[0072] Step 2: The control module determines whether the actual liquid pressure exceeds the preset maximum safety threshold, for example, 30 kPa. If Pactual > 30 kPa, it is determined as an abnormal high-pressure state, which may be caused by pipeline blockage, intestinal spasm or control system failure. At this time, the main controller immediately triggers an alarm and the electromagnetic pressure relief valve to relieve pressure.

[0073] Step 3: During normal system operation, the control module maps the current height H to the corresponding enema response levels L1, L2, and L3, and sets the corresponding target pressure value Ptarget. The control module continuously calculates the deviation between the actual pressure and the target pressure: e(t) = Ptarget - Pactual. If the absolute value of this deviation |e(t)| exceeds the preset allowable deviation upper limit Δ, it indicates that the current pressure deviation target value is large and needs to be actively adjusted. At this time, the main controller generates an enema pump speed adjustment command based on e(t), e(t-1), and e(t-2) using an incremental digital PID control algorithm, dynamically adjusting the speed and output flow of the enema pump so that Pactual gradually approaches and stabilizes at Ptarget.

[0074] Step 4: The control module continuously monitors the height value H output from the height detection module of the hip support frame 100. When a change in H is detected and the change exceeds the set threshold, the system re-determines the current enema response level and updates the target pressure Ptarget accordingly. To avoid intestinal discomfort caused by sudden pressure changes, the new target pressure is adjusted using a ramp transition method.

[0075] Step 5: When the amount of enema fluid injected reaches the preset dose, or the enema time reaches the set treatment duration, the system automatically stops the enema pump, the touch screen 13 indicates that the operation is complete, and the control module automatically uploads the data of this operation to the cloud platform via wireless communication.

[0076] Example 3 is a further improvement on Example 1. The main controller supports personalized configuration of response level threshold and target pressure value, so that the system can flexibly adjust the enema pressure according to the physiological characteristics, tolerance and treatment needs of different patients.

[0077] Specifically, medical staff can set dedicated parameter templates for different patient types through the touch screen 13 and buttons 12, and save them as preset modes for later use.

[0078] For example, for elderly and frail patients with weakened intestinal motility and lower tolerance, the system can be configured as follows: First response level L1: when the height value H < 35 cm, the target pressure is set to 8 kPa; Second response level L2: when 35 cm ≤ H < 42 cm, the target pressure is set to 15 kPa; Third response level L3: when H ≥ 42 cm, the target pressure is set to 20 kPa. This configuration uses a relatively low pressure level to avoid abdominal distension, pain, or intestinal spasms caused by excessive pressure, thereby improving treatment comfort and safety.

[0079] For adult standard patients, the default standard parameter template is used: L1: H < 30cm, Ptarget = 10kPa; L2: 30cm ≤ H < 40cm, Ptarget = 20kPa; L3: H ≥ 40cm, Ptarget = 25kPa; This configuration is suitable for most routine enema procedures.

[0080] Example 4 is a further optimization based on Example 1. In this embodiment, the main controller has wireless communication capabilities such as Wi-Fi or Bluetooth, enabling it to upload data from each operation to the hospital information system or mobile terminal APP, i.e., the cloud platform in Example 2. The uploaded data includes the time series of height changes of the hip support frame 100; the comparison curve between actual pressure and target pressure; and the start and end times of the operation, total dosage, and records of abnormal events. Medical staff can view the operation quality and assess the standardization of treatment through the backend, providing data support for subsequent diagnosis and treatment.

[0081] Many other changes and modifications can be made without departing from the concept and scope of this invention. It should be understood that this invention is not limited to the specific embodiments, and the scope of this invention is defined by the appended claims.

Claims

1. An intelligent enema system, characterized in that, Includes a height-adjustable hip support frame to support the patient's hip height and expose the anal area; An enema fluid delivery assembly includes an enema fluid container, an enema pump, and a delivery line connected to an anal cannula; A height detection module is used to obtain the height value of the hip support frame in real time; A pressure detection module is installed on the delivery pipeline to detect the liquid pressure during the enema process; The control module is electrically connected to the height detection module, the pressure detection module, and the enema pump, respectively. The control module is configured to determine the corresponding enema response level based on the height of the hip support frame, and set an initial enema target pressure value based on the response level. During the enema process, the output of the enema pump is adjusted through pressure feedback to make the actual pressure approach the target pressure. When a change in height is detected, the response level is dynamically updated and the target pressure value is adjusted accordingly. The response levels include Level 1, Level 2, and Level 3; When the height value is lower than the first threshold, it is set to the first level, corresponding to a lower target pressure; When the height value is between the first threshold and the second threshold, it is set to the second level, corresponding to medium target pressure; When the height value is greater than or equal to the second threshold, it is set to the third level, corresponding to a higher target pressure.

2. The intelligent enema system according to claim 1, characterized in that, The control module uses an incremental digital PID control algorithm to adjust the operating speed of the enema pump, including calculating the deviation e(t) between the current actual pressure and the target pressure; calculating the control increment Δy(t) based on the pressure deviations e(t), e(t-1), and e(t-2) of the current and the previous two sampling periods; and outputting a drive signal to adjust the pump speed to achieve pressure control.

3. The intelligent enema system according to claim 2, characterized in that, The control module is also configured to immediately stop the enema pump and activate an audible and visual alarm when the actual pressure is detected to exceed a preset maximum pressure threshold. When an emergency stop command is received from the user, the pump body is shut down and the pressure relief passage is opened.

4. The intelligent enema system according to claim 3, characterized in that, The control module employs ramp-type transition control when adjusting the target pressure value.

5. The intelligent enema system according to claim 4, characterized in that, The control module is also configured to record the start and end times of each operation, the height change curve of the hip support frame, and the change curves of the target pressure and the actual pressure. After the operation is completed, an operation log is generated and output via a touch screen or wireless communication module.

6. The intelligent enema system according to claim 5, characterized in that, The height adjustment mechanism of the hip support frame is integrated with the height detection module, and the height is detected by using an encoder, potentiometer or ultrasonic sensor.

Images