Control system of an intelligent urinary catheterization device

Abstract

The present invention discloses a control system for an intelligent urinary catheterization device, which belongs to the field of medical devices. It includes a pressure sensor, a signal acquisition unit, a signal processing unit, a microcontroller, a drive unit, a parameter setting unit, a human-machine interface, a communication unit, an alarm unit and a remote monitoring platform; the signal acquisition unit, the signal processing unit, the drive unit, the parameter setting unit, the human-machine interface, the communication unit and the alarm unit are all connected to the microcontroller. When the set pressure threshold and delay time are reached, the electric control valve automatically opens and drainage begins. After the set urination time is reached, the electric control valve closes. Except for parameter setting and power on and off, all can be completed automatically without manual operation. It is simple to operate and has high safety, which is conducive to the recovery of the normal urination function of the patient's bladder and reduces the labor intensity of nursing staff.

Description

Technical Field

[0001] The present invention belongs to the field of medical devices, and more specifically, relates to a control system of an intelligent urinary catheterization device. Background Art

[0002] In clinical medicine, for situations where urination cannot be controlled autonomously, a urinary catheter is often used to help patients urinate. A traditional urinary catheter is inserted into the bladder through the urethra to drain urine. After the urinary catheter is inserted into the bladder, there is an air bag near the head of the catheter to fix the catheter in the bladder and prevent it from coming out easily. The drainage tube is connected to a urine bag to collect urine. However, if this type of indwelling catheter is left open for a long time, it will cause bladder atrophy, reduced capacity, and serious complications. Studies have shown that early implementation of timed opening of the catheter after indwelling the catheter can establish autonomous bladder function as soon as possible. Therefore, in clinical practice, medical staff or family members generally manually open the catheter regularly for discharge. However, this type of manual timed opening of the catheter is difficult to control the pressure of the bladder, which may cause the bladder to be overfilled or open the catheter before it is filled, which is not conducive to the recovery of the urination reflex.

[0003] Chinese patent document CN201949288U proposes a human bladder function training device that can realize the function of automatic timed urination. However, due to different water intake and individual differences, the urination interval of a person is not fixed. This method of setting a certain time interval for automatic timed urination also has the problem of overfilling the bladder or starting catheterization before it is filled. Therefore, how to reduce the workload of medical staff while helping patients to establish urination reflex awareness as soon as possible is an urgent problem to be solved in clinical practice. Summary of the invention

[0004] In view of the defects of the related art, the purpose of the present invention is to provide a control system for an intelligent urinary catheterization device, aiming to solve the problem that the existing urinary catheterization device is not conducive to helping patients establish urination reflex awareness as soon as possible.

[0005] To achieve the above-mentioned object, the present invention provides a control system of an intelligent urinary catheterization device, comprising a pressure sensor, a signal acquisition unit, a signal processing unit, a microcontroller, a drive unit, a parameter setting unit, a human-machine interface, a communication unit, an alarm unit and a remote monitoring platform; the signal acquisition unit, the signal processing unit, the drive unit, the parameter setting unit, the human-machine interface, the communication unit and the alarm unit are all connected to the microcontroller;

[0006] The parameter setting unit pre-sets system parameters;

[0007] The signal acquisition unit acquires the pressure signal of the pressure sensor and pre-processes the pressure signal;

[0008] The signal processing unit generates a driving control signal according to the pre-processed pressure signal and the pressure threshold, and transmits the signal to the driving unit, thereby starting the automatic urination process;

[0009] The human-machine interface is used for display and manual control;

[0010] The alarm unit is used to sound an alarm in an emergency or fault state;

[0011] The remote monitoring platform performs data communication with the microcontroller through the communication unit.

[0012] Furthermore, it also includes

[0013] The permission management unit is used to set permissions in different levels;

[0014] The authority management unit is connected to the microcontroller.

[0015] Furthermore, the remote monitoring platform includes a terminal device and a cloud server.

[0016] Furthermore, the cloud server utilizes big data and artificial intelligence algorithms to encrypt, analyze, count and store data, and to perform background maintenance on the control program of the intelligent urinary catheterization device.

[0017] Furthermore, the terminal device includes a smart phone, a tablet, a personal computer and a PDA, on which an automatic catheterization application is running; the automatic catheterization application remotely controls the intelligent catheterization device and displays status results.

[0018] Furthermore, it also includes a power management unit; the power management unit includes an external power adapter, a battery pack and a switching module.

[0019] Furthermore, it also includes a velocity sensor, an acceleration sensor and an angular motion detection sensor.

[0020] Furthermore, the system parameters include pressure threshold, delay time and urination duration.

[0021] Furthermore, the preprocessing includes differential amplification, analog-to-digital conversion and filtering.

[0022] Furthermore, the signal processing unit performs continuous detection within a preset delay time, and generates the drive control signal when it is detected that the relative pressure value is continuously higher than the pressure threshold within the delay time.

[0023] Compared with the prior art, the above technical solution conceived by the present invention can achieve the following beneficial effects:

[0024] (1) The intelligent urinary catheterization device control system provided by the present invention automatically opens the electric control valve to start drainage when the set pressure threshold and delay time are reached. After the set urination time is reached, the electric control valve closes. Except for parameter setting and power on and off, all other operations can be completed automatically without manual operation. The operation is simple and safe, which is conducive to the recovery of the normal urination function of the patient's bladder and reduces the labor intensity of nursing staff;

[0025] (2) This system uses a variety of control methods that combine human-machine interface, terminal APP and cloud server, which can be applied to various user needs and application scenarios. The cloud server can also perform background maintenance on the intelligent catheterization device control program, realize automatic software updates, and complete the optimization and upgrade of the control algorithm, thus establishing an intelligent control system that can be continuously optimized and upgraded. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a block diagram of a control system in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] The embodiment of the present invention provides a control system for an intelligent urinary catheterization device. When the set pressure threshold and delay time are reached, the electric control valve automatically opens and starts drainage. When the set urination time is reached, the electric control valve closes. Except for parameter setting and power on and off, all operations can be completed automatically without manual operation. The operation is simple and safe, which is conducive to the recovery of the normal urination function of the patient's bladder and reduces the labor intensity of nursing staff.

[0029] The control system of the intelligent urinary catheterization device provided by the embodiment of the present invention is as follows Figure 1 As shown, it includes a pressure sensor, a signal acquisition unit, a signal processing unit, a microcontroller, a drive unit, a parameter setting unit, a human-machine interface, a communication unit, an alarm unit, an authority management unit, a power management unit, an electric control valve and a remote monitoring platform; wherein the signal acquisition unit, the signal processing unit, the drive unit, the parameter setting unit, the human-machine interface, the communication unit, the alarm unit, the authority management unit and the power management unit are all connected to the microcontroller, and the microcontroller controls the normal operation of each unit; the electric control valve is connected to the drive unit; and the remote monitoring platform communicates data with the microcontroller through the communication unit.

[0030] In some embodiments, the electrically controlled valve includes an electric valve and a micro motor; after the controlled end of the micro motor receives the driving signal output by the driving unit, its driving output shaft drives the valve core of the electric valve to move to open the electric valve, thereby opening the urination channel.

[0031] In some embodiments, in addition to the pressure sensor, the control system also includes a speed sensor, an acceleration sensor, and an angular motion detection sensor to monitor the use environment and / or state and eliminate interference caused by continuous motion. When it is detected that the user is performing continuous motion including but not limited to walking, running, climbing, going up and down stairs, taking an elevator, driving or riding a vehicle, driving or riding an amusement ride, etc., the monitoring state of the device is automatically turned off to avoid the device from being accidentally turned on due to changes in motion posture and position.

[0032] The signal acquisition unit acquires the pressure signal of the pressure sensor and performs preprocessing operations such as differential amplification, analog-to-digital conversion, and filtering on the pressure signal.

[0033] The parameter setting unit pre-sets the parameters of the intelligent urinary catheterization system. The system parameters include but are not limited to the following parameters:

[0034] The pressure threshold is the critical value for opening the urination channel;

[0035] Delay time, that is, the time interval between the pressure sensor detecting that the pressure value exceeds the pressure threshold for multiple consecutive times;

[0036] The duration of urination is the continuous opening time of the electric control valve.

[0037] The signal processing unit generates a driving control signal according to the pre-processed pressure signal and the preset pressure threshold value and transmits it to the driving unit. Since the same patient has different postures (such as walking, going upstairs, lying on the side, etc.) that squeeze the bladder to different degrees, the initial values ​​of the bladder pressure under different postures are different, that is, the initial values ​​of the pressure sensor are different. If the absolute pressure value measurement method is adopted, the accuracy is not high. This implementation adopts the relative pressure value measurement method, that is, the monitoring indicator is the change of the pressure value to improve the accuracy of the system measurement. When the signal processing unit determines that the relative pressure value is greater than the set threshold, it is necessary to control the electric control valve to conduct, so that the urine in the bladder is discharged. Moreover, when the relative pressure value and the threshold value are judged, it is necessary to continuously detect within the preset delay time. Only when the pressure value is detected to continuously exceed the threshold value within the delay time, the driving unit is controlled to open the electric control valve and start the automatic urination process. It is understandable that because the patient's coughing or laughing and other actions can also cause the instantaneous increase of bladder pressure, the above instantaneous situation can be identified by the delayed detection method to avoid system malfunction. In addition, the urination time is set because the electric valve needs to be opened for a certain period of time to ensure that the urine is completely discharged.

[0038] The human-machine interface includes buttons, LED display screens or touch screens, etc., which can be used to modify and display system parameters, and can also display urine volume, urination status, equipment operation status, etc. At the same time, manual control can be performed, such as opening and closing inspection when the machine is turned on for the first time or emergency urination in a fault state. The alarm unit is used to sound an alarm in an emergency or fault state. Preferably, the alarm is issued on the human-machine interface in a combination of one or more methods such as sound, light, vibration, etc.

[0039] The remote monitoring platform communicates data with the microcontroller through a communication unit, and the communication methods include but are not limited to Zigbee, Bluetooth, hotspot, Wifi, mobile signal, wired, etc. The remote monitoring platform includes a cloud server and a user terminal (such as a smart phone, tablet, personal computer, PDA, etc.). Preferably, the monitoring data is transmitted to the smart phone in real time via Bluetooth or mobile signal, and then the automatic catheterization application (APP) running on the smart phone is used to implement "one-to-one", "one-to-many" or "many-to-one" remote control, that is, one smart catheterization device can be remotely controlled by one terminal APP, the data of one smart catheterization device can be shared with multiple terminal APPs for monitoring, and multiple smart catheterization devices can be centrally monitored by one terminal APP. Some or all of the functions of the aforementioned human-machine interface can be replaced by the terminal APP. Preferably, through the automatic catheterization application, the user can perform the following operations:

[0040] Set parameters such as device name, pressure threshold, urination duration, etc. for the intelligent urinary catheterization device;

[0041] Force opening or closing of the intelligent urinary catheterization device and / or electric valve;

[0042] Real-time display of urination status, including but not limited to current pressure, urine volume, pressure threshold, urination duration and other parameters;

[0043] Displays the battery level of the catheterization device, the device being connected, etc.

[0044] Update software version and upgrade firmware;

[0045] Review and export historical records, including but not limited to each urination time, urination duration, urination pressure, pressure threshold, current flow rate and other parameters;

[0046] Ability to upload / share history data to other users and / or applications.

[0047] The microcontroller and smartphone can also transmit relevant data to the cloud server, establish a database for the intelligent catheterization device, encrypt, store and transmit the data, and ensure patient privacy and medical data security; the cloud server can also perform background maintenance on the intelligent catheterization device control program, realize automatic software updates, and complete the optimization and upgrade of the control algorithm, so as to establish an intelligent control system with sustainable optimization and upgrade. Using the database of the intelligent catheterization device, big data can be combined with artificial intelligence algorithms to perform statistics and analysis on the data, for example, remote diagnosis can be achieved by an expert system deployed on the cloud server. The above multiple control methods combining human-machine interface, terminal APP and cloud server can be applied to a variety of user needs and application scenarios.

[0048] The authority management unit is used to set authority levels, and can delegate authority for opening and closing the intelligent urinary catheterization device, setting parameters, viewing data, downloading data, etc. step by step.

[0049] The same catheterization device can allow multiple users / devices to connect, including but not limited to nurse station users, primary users, family users, etc.;

[0050] The automatic catheterization application (App) can set permissions for different users / devices such as nurse station users, main users, and family users;

[0051] The user with the highest level of authority can allocate authority to other users / devices, including but not limited to the authority to open, close, view, and download;

[0052] Other users / devices can apply for permissions from the user with the highest permission level;

[0053] Users at the nurse station can remotely control multiple catheterization devices at the same time and can batch download historical data of multiple intelligent catheterization devices.

[0054] The power management unit includes an external power adapter, a battery pack and a switching module. The intelligent catheterization device supports two power supply modes: external power supply and battery pack. The two power supply modes are selected through the switching module. Power supply mode 1 is selected in fixed scenes or daily use, that is, connecting to an external power supply through an external power adapter; power supply mode 2 is suitable for outings, easy to carry or used as a backup power supply in the event of an unexpected power outage.

[0055] When in use, turn on the main unit of the intelligent urinary catheterization device to start automatic pressure monitoring. When the set pressure threshold and delay time are reached, the electric control valve automatically opens and drainage begins. When the set urination time is reached, the electric control valve closes. Except for parameter setting and power on and off, all other operations are completed automatically without manual operation. The operation is simple and safe, which is conducive to the recovery of the normal urination function of the patient's bladder and reduces the labor intensity of nursing staff.

[0056] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When the use is implemented in whole or in part in the form of a computer program product, the computer program product includes one or more computer instructions. When the computer program instructions are loaded or executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL) or wireless (e.g., infrared, wireless, microwave, etc.) mode) to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state hard disk SolidState Disk (SSD)), etc.

[0057] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A control system for an intelligent urinary catheterization device, characterized in that: It includes a pressure sensor, a signal acquisition unit, a signal processing unit, a microcontroller, a drive unit, a parameter setting unit, a human-machine interface, a communication unit, an alarm unit and a remote monitoring platform; the signal acquisition unit, the signal processing unit, the drive unit, the parameter setting unit, the human-machine interface, the communication unit and the alarm unit are all connected to the microcontroller; wherein the control system also includes a speed sensor, an acceleration sensor and an angular motion detection sensor; The parameter setting unit pre-sets system parameters; The signal acquisition unit acquires the pressure signal of the pressure sensor and pre-processes the pressure signal, wherein the initial value of the pressure sensor is different in different postures; The signal processing unit generates a driving control signal according to the pre-processed pressure signal and the pressure threshold and transmits it to the driving unit, thereby starting the automatic urination process, wherein the signal processing unit performs continuous detection within a preset delay time, and generates the driving control signal when the relative pressure value is continuously higher than the pressure threshold within the delay time, wherein the relative pressure value is a change relative to the initial value; The human-machine interface is used for display and manual control; The alarm unit is used to sound an alarm in an emergency or fault state; The remote monitoring platform performs data communication with the microcontroller through the communication unit.

2. The control system according to claim 1, characterized in that: Also includes The permission management unit is used to set permissions at different levels; The authority management unit is connected to the microcontroller.

3. The control system according to claim 1, characterized in that: The remote monitoring platform includes a terminal device and a cloud server.

4. The control system according to claim 3, characterized in that: The cloud server utilizes big data and artificial intelligence algorithms to encrypt, analyze, count and store data, and to perform background maintenance on the control program of the intelligent urinary catheterization device.

5. The control system according to claim 3, characterized in that: The terminal devices include smart phones, tablets, personal computers and PDAs, on which an automatic catheterization application is running; the automatic catheterization application remotely controls the intelligent catheterization device and displays status results.

6. The control system according to any one of claims 1 to 5, characterized in that: It also includes a power management unit; the power management unit includes an external power adapter, a battery pack and a switching module.

7. The control system according to any one of claims 1 to 5, characterized in that: The system parameters include pressure threshold, delay time and urination duration.

8. The control system according to any one of claims 1 to 5, characterized in that: The preprocessing includes differential amplification, analog-to-digital conversion and filtering.

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