A urinary catheter device for intelligent urological system health monitoring

Abstract

The utility model discloses a kind of urinary catheter equipment of intelligent urological system health monitoring. The urinary catheter equipment includes urinary catheter body, monitoring unit, control unit, data processing and display unit;Monitoring unit integrates multiple sensors, including urine oxygen partial pressure sensor, urine flow rate and urine volume sensor, bladder pressure sensor and bladder temperature sensor;Each the sensor is connected with signal processing unit;Control unit is connected with external device by network and communicates;Data processing and display unit can display real-time health data;The monitoring unit integrates urine oxygen partial pressure sensor, urine flow rate and urine volume sensor, bladder temperature sensor, bladder pressure sensor and signal processing unit, so that user can simultaneously carry out bladder pressure, urine chemical composition, urine flow rate and urine volume and bladder temperature detection, and need not to replace device or interrupt detection process;Moreover, the utility model is favorable to simplify operation process, improve user experience.

Description

Technical Field

[0001] This utility model belongs to the field of medical assistive devices, specifically relating to a catheter device for intelligent urinary system health monitoring. Background Technology

[0002] Urinary oxygen partial pressure (UOP) is considered a "clinical window into renal medullary health" because numerous studies have shown its close correlation with medullary oxygen concentration. In animal models, UOP is a sensitive indicator of reduced renal blood flow. Current research indicates that UOP is an independent risk factor for acute kidney injury. Currently, the common method for measuring UOP involves collecting urine from a catheter into a sampling bottle, which is then sent to a urine gas analyzer for analysis. Simultaneously, if bladder pressure measurement is required, saline solution is manually injected into the bladder through a catheter, and then the bladder pressure is measured. While medical personnel can analyze patients' urine and bladder pressure using these methods, existing catheter devices still have the following problems:

[0003] 1) Traditional methods for detecting urine oxygen partial pressure are not closed-loop tests. During sampling and analysis, urine may come into contact with air, leading to errors in the test results.

[0004] 2) Currently, there is no simple, non-invasive testing technology that can directly connect to a urinary catheter to detect and record the partial pressure of oxygen in urine in real time. The time delay in detection may affect the test results, thus making the test results unable to accurately reflect the user's real-time status.

[0005] 3) Bladder pressure cannot be detected simultaneously, and the manual injection of saline may expose the urine to air, affecting the urine oxygen test results;

[0006] 4) It cannot record urine flow rate and urine volume simultaneously. The error analysis between individual urine samples and whole urine samples is not yet clear. The measurement results may be too high or too low compared to the actual pressure value, which may cause harm to the user's body.

[0007] 5) Existing urinary catheter devices have limited functionality, only capable of detecting bladder pressure or bladder temperature. For example, Chinese patent CN202751674 discloses a single-use temperature-measuring urinary catheter. This prior art is mainly used to solve the problem of testing a patient's body temperature during surgery, emergency treatment, or when the patient is unable to move. However, its structure is simple and it does not have the function of detecting urine oxygen partial pressure, bladder pressure, urine flow rate, and urine volume.

[0008] Therefore, there is an urgent need for an intelligent catheter device for monitoring the health of the urinary system to solve the above problems. Summary of the Invention

[0009] To address the problems in related technologies, this invention proposes an intelligent urinary system health monitoring catheter device to overcome the aforementioned technical issues in existing technologies. The monitoring unit of this invention integrates a urine oxygen partial pressure sensor, urine flow rate and volume sensors, a bladder temperature sensor, a bladder pressure sensor, and a signal processing unit. This allows users to simultaneously detect bladder pressure, urine chemical composition, urine flow rate and volume, and bladder temperature without needing to replace the device or interrupt the detection process. This reduces the complexity of the detection operation, shortens the detection time, and improves detection efficiency.

[0010] The technical solution of this utility model is implemented as follows: a urinary catheter device for intelligent urinary system health monitoring, including a urinary catheter body, the urinary catheter body including an inlet end, an outlet end and a drainage cavity disposed inside, the inlet end being connected to the patient end, the outlet end being connected to a urine collection bag, urine flowing in from the inlet end and being output to the urine collection bag at the outlet end through the drainage cavity;

[0011] It also includes a monitoring unit, a control unit, and a data processing and display unit. The monitoring unit is located on the catheter body, and the urine in the drainage cavity flows through the monitoring unit. The catheter body is also provided with a transmission structure, and the control unit and the data processing and display unit are respectively connected to the monitoring unit through the transmission structure.

[0012] The monitoring unit includes a urine oxygen partial pressure sensor, a urine flow rate and urine volume sensor, a bladder temperature sensor, a bladder pressure sensor, and a signal processing unit. The urine oxygen partial pressure sensor is used to acquire the partial pressure of oxygen in the urine. The urine flow rate and urine volume sensor is used to acquire the flow rate and urine volume of the urine. The bladder temperature sensor is used to acquire the temperature of the bladder. The bladder pressure sensor is used to measure the pressure inside the bladder. Each of the sensors is connected to the signal processing unit.

[0013] The signal processing unit is used to receive and process the data signals detected by each of the sensors, generate detection data, and send them to the control unit and the data processing and display unit respectively.

[0014] The control unit is operated via external buttons and communicates with external devices via a network.

[0015] The data processing and display unit is used to process and analyze the received detection data, generate health warning information based on the detection data, and display the detection data and health warning information.

[0016] Furthermore, the signal processing unit also includes a preamplifier, a low-pass filter, an A / D converter, and an MCU microcontroller unit connected in sequence;

[0017] Each of the sensors is connected to the preamplifier; the data signals detected by each sensor are electrical signals; each of the sensors is connected to the preamplifier via an electrical signal line.

[0018] Alternatively, each of the aforementioned sensors may be connected to a third photoelectric converter via an electrical signal line, the third photoelectric converter may be connected to a fourth photoelectric converter via an optical fiber, and the fourth photoelectric converter may be connected to the preamplifier via an electrical signal line;

[0019] In this invention, each sensor can be directly connected to the preamplifier via an electrical signal line, or long-distance signal transmission between the sensors and the preamplifier can be achieved by sequentially connecting a third photoelectric converter, an optical fiber, and a fourth photoelectric converter.

[0020] The preamplifier is used to amplify the received electrical signal;

[0021] The low-pass filter is used to filter the amplified electrical signal;

[0022] The A / D converter is used to perform analog-to-digital conversion on the filtered electrical signal;

[0023] When the filtered electrical signal is an analog signal, the A / D converter is used to convert the filtered analog signal into a digital signal and send it to the MCU microcontroller unit; when the filtered electrical signal is a digital signal, it is sent directly to the MCU microcontroller unit.

[0024] The MCU microcontroller unit is used to parse, process, generate detection data from the received digital signals, and control the output of the detection data.

[0025] Preferably, the data processing and display unit includes a display device, which includes, but is not limited to, an LCD / LED display screen; the MCU microcontroller unit includes a display control port, which is connected to the display device and used to display the detection data.

[0026] Furthermore, the transmission structure includes an impedance component, a second photoelectric converter, and a first photoelectric converter disposed on the catheter body; one end of the impedance component is connected to the first photoelectric converter through a converter interface, and the other end of the impedance component is connected to a transmission cable in sequence through an optical fiber and the second photoelectric converter; the transmission cable is connected to the control unit and the data processing and display unit respectively.

[0027] Preferably, the transmission structure can be an electrical signal line, and the control unit, data processing and display unit are directly connected to the monitoring unit through the electrical signal line. In this utility model, the control unit and the monitoring unit can be directly connected through the electrical signal line, or the long-distance signal transmission between the control unit, the data processing and display unit and the preamplifier can be achieved by connecting the first photoelectric converter, the impedance component, the optical fiber and the second photoelectric converter in sequence.

[0028] The impedance component is used to ensure more stable signal transmission between the monitoring unit and the data processing and display unit.

[0029] Furthermore, the catheter body also includes a catheter connector, a balloon, a first sensor connector, and a second sensor connector arranged in sequence; the catheter connector is connected to the inlet end, and the outlet end is provided with an outlet tube; the monitoring unit and the first photoelectric converter are arranged in sequence between the first sensor connector and the second sensor connector.

[0030] The liquid outlet pipe includes a water injection valve port and a liquid outlet, and the liquid outlet is connected to the urine collection bag;

[0031] The catheter connector is used to connect to the urethra at the patient's end;

[0032] Preferably, the catheter connector is made of a biocompatible material to provide patients with a comfortable and safe user experience;

[0033] The water injection valve is used to inject water into the balloon; after the balloon is injected with water and expands, it is used to fix the catheter connector and prevent the catheter connector from coming off the patient end during use.

[0034] Furthermore, the urine oxygen partial pressure sensor includes an infrared light source emitter, a filter, a sample chamber, and an infrared detector connected in sequence;

[0035] The infrared light source emitter is used to emit infrared light. Before use, a light source capable of covering a specific wavelength region absorbed by oxygen must be selected. The infrared light source emitter is connected to a filter via an optical fiber. The infrared light source emitter and the infrared detector are positioned opposite each other at opposite ends of the sample chamber.

[0036] The filter allows only infrared light of oxygen-absorbing wavelengths to pass through, and is used to filter out light sources of other wavelengths besides infrared light; a mounting bracket is provided between the infrared light source emitter and the sample chamber, and the filter is inserted into the mounting bracket for fixation;

[0037] The sample chamber is an optically transparent container that allows infrared light to pass through, used to hold urine samples; infrared light filtered by the filter enters from one end of the sample chamber, and the infrared light source emitter receives the infrared light after it has passed through the urine sample at the other end of the sample chamber;

[0038] The filtered infrared light is aligned with the optical path of the infrared detector to ensure that the infrared light passing through the urine sample can enter the infrared detector. In this invention, the sample chamber is preferably made of quartz glass to reduce optical loss.

[0039] The infrared detector is used to detect changes in the intensity of infrared light after passing through a urine sample;

[0040] In this invention, a detector sensitive to a specific oxygen absorption wavelength is preferred; the infrared detector is connected to the signal processing unit.

[0041] In this invention, the urine oxygen partial pressure sensor is based on the principle of fluorescence quenching to quantitatively monitor dissolved oxygen, with the data unit being mmHg.

[0042] Furthermore, the urine flow rate and urine volume sensor includes a first accumulation container, a liquid level sensor, a turbine flow sensor, and a flow sensor;

[0043] The liquid level sensor and the turbine flow sensor are located inside the first accumulation container;

[0044] The flow sensor is connected to the turbine flow sensor; the level sensor and the flow sensor are respectively connected to the signal processing unit.

[0045] Furthermore, the monitoring unit includes a second accumulation container, in which the bladder pressure sensor and the bladder temperature sensor are integrated; when urine flows into the second accumulation container, the bladder pressure sensor senses the pressure change in the bladder and converts it into an electrical signal, which is then sent to the signal processing unit; the bladder temperature sensor senses the temperature change in the bladder and converts it into an electrical signal, which is then sent to the signal processing unit.

[0046] Furthermore, the data processing and display unit includes at least one data analysis and early warning algorithm module; the data analysis and early warning algorithm module includes at least a data comparator; the data analysis and early warning algorithm module is used to compare the preset health parameter threshold with the detection data and generate corresponding health early warning information; the health early warning information is used to provide users with timely health advice or warnings.

[0047] Furthermore, it also includes a communication module and a data storage module for storing the detection data; the data storage module is communicatively connected to the control module and the data processing and display unit, respectively.

[0048] In this invention, the data storage module is used to store historical monitoring data to facilitate subsequent long-term health status analysis and trend prediction for patients.

[0049] Preferably, the data storage module is an EEPROM (Electrically Erasable Programmable Read-Only Memory), and the data storage module is directly connected to the MCU microcontroller unit via an I2C or SPI interface;

[0050] The communication module is communicatively connected to the control unit, and is used for real-time synchronization and remote transmission of data with the external device; the external device is a computer-based medical and health platform, or a smart device such as a tablet or mobile phone.

[0051] Furthermore, it also includes a power module, and each of the sensors, the signal processing unit, the control unit, the data processing and display unit, the data storage module, and the communication module is connected to the power module; the power module is used to provide power support for the entire urinary catheter device.

[0052] The beneficial effects of this utility model are:

[0053] (1) This utility model discloses a urinary catheter device for intelligent urinary system health monitoring. The urinary catheter device integrates the catheter body, monitoring unit, control unit, and data processing and display unit, providing users with a comprehensive, efficient, and convenient urinary health monitoring device. Compared with traditional urinary catheters and urinary monitoring solutions, the urinary catheter device of this utility model significantly improves the ease of operation and detection efficiency, while ensuring the accuracy and practicality of the monitoring data.

[0054] (2) The monitoring unit of this utility model integrates a urine oxygen partial pressure sensor, a urine flow rate and urine volume sensor, a bladder temperature sensor, a bladder pressure sensor, and a signal processing unit, allowing users to simultaneously detect bladder pressure, urine chemical composition, urine flow rate and urine volume, and bladder temperature without needing to replace the device or interrupt the detection process. It also reduces the complexity of the detection operation, reduces the time required for detection, and improves detection efficiency.

[0055] (3) Moreover, by integrating the catheter body, monitoring unit, control unit, and data processing and display unit, this invention enables integrated operation, simplifies the user's operation process, and reduces reliance on professional skills. Simultaneously, this invention can monitor multiple urinary system health indicators, achieving parallel data acquisition through pre-integrated monitoring modules, significantly reducing the overall time required for data collection. Attached Figure Description

[0056] Figure 1 This is a schematic diagram of the structure of a catheter device for intelligent urinary system health monitoring according to the present invention;

[0057] Figure 2 This is a schematic diagram of the frame of a catheter device for intelligent urinary system health monitoring according to the present invention;

[0058] Figure 3 This is a schematic diagram showing the connection between the signal processing unit, control unit, and data processing and display unit of this utility model.

[0059] Figure 4 This is a schematic diagram showing the connection between each of the sensors and the preamplifier described in this utility model;

[0060] Figure 5 This is another schematic diagram showing the connection between each of the sensors described in this utility model and the preamplifier;

[0061] Figure 6 This is a schematic diagram of the monitoring unit of this utility model;

[0062] Figure 7 This is a schematic diagram of the structure of the urine oxygen partial pressure sensor of this utility model;

[0063] Figure 8 This is a schematic diagram of the structure of the urine flow rate and urine volume sensor of this utility model;

[0064] Figure 9 This is a schematic diagram of the bladder temperature sensor, bladder pressure sensor, and signal processing unit of this utility model;

[0065] Figure 10 This is a schematic diagram of the common mode choke of this utility model.

[0066] Marker explanation:

[0067] 1. Catheter body; 11. Drainage cavity; 12. Catheter connector; 13. Balloon; 14. First sensor connector; 15. Second sensor connector; 16. Discharge tube; 161. Water injection valve port; 162. Discharge port;

[0068] 2. Monitoring Unit; 21. Urine Oxygen Partial Pressure Sensor; 211. Infrared Light Source Emitter; 212. Filter; 213. Sample Chamber; 214. Infrared Detector; 22. Urine Flow Rate and Urine Volume Sensor; 221. First Accumulation Container; 222. Liquid Level Sensor; 223. Turbine Flow Sensor; 224. Flow Sensor; 23. Bladder Temperature Sensor; 24. Bladder Pressure Sensor; 25. Second Accumulation Container; 26. Signal Processing Unit; 261. Preamplifier; 262. A / D Converter;

[0069] 3. Impedance component; 31. Converter interface; 4. First photoelectric converter; 5. Transmission cable; 6. Control unit; 7. Data processing and display unit; 8. Power module; 9. Optical fiber; 10. Second photoelectric converter. Detailed Implementation

[0070] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0071] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 this utility model.

[0072] like Figure 1 As shown, this embodiment provides a urinary catheter device for intelligent urinary system health monitoring, including a urinary catheter body 1. The urinary catheter body 1 includes an inlet end, an outlet end, and a drainage cavity 11 disposed inside. The inlet end is connected to the patient end, and the outlet end is connected to a urine collection bag. Urine flows in from the inlet end and is output to the urine collection bag at the outlet end through the drainage cavity 11.

[0073] It also includes a monitoring unit 2, a control unit 6, and a data processing and display unit 7. The monitoring unit 2 is located on the catheter body 1, and the urine in the drainage cavity 11 flows through the monitoring unit 2. The catheter body 1 is also provided with a transmission structure, and the control unit 6 and the data processing and display unit 7 are respectively connected to the monitoring unit 2 through the transmission structure.

[0074] like Figure 3 As shown, the monitoring unit 2 includes a urine oxygen partial pressure sensor 21, a urine flow rate and urine volume sensor 22, a bladder temperature sensor 23, a bladder pressure sensor 24, and a signal processing unit 26. The urine oxygen partial pressure sensor 21 is used to obtain the partial pressure of oxygen in the urine; the urine flow rate and urine volume sensor 22 is used to obtain the flow rate and urine volume of the urine; the bladder temperature sensor 23 is used to obtain the temperature of the bladder; the bladder pressure sensor 24 is used to measure the pressure inside the bladder; each of the sensors is connected to the signal processing unit 26 via an optical fiber 9.

[0075] The signal processing unit 26 is used to receive and process the data signals detected by each of the sensors, generate detection data, and send them to the control unit 6 and the data processing and display unit 7 respectively.

[0076] like Figure 1 As shown, the control unit 6 is operated and controlled by external buttons, and the control unit 6 communicates with external devices through a network;

[0077] The data processing and display unit 7 is used to process and analyze the received detection data, generate health warning information based on the detection data, and display the detection data and health warning information.

[0078] like Figure 2 As shown, the signal processing unit 26 also includes a preamplifier 261, a low-pass filter, an A / D converter 262, and an MCU microcontroller unit 6 connected in sequence.

[0079] Each of the sensors is connected to the preamplifier 261; the data signals detected by each sensor are electrical signals; each of the sensors is connected to the preamplifier 261 via an electrical signal line.

[0080] Alternatively, each of the aforementioned sensors may be connected to a third photoelectric converter via an electrical signal line, the third photoelectric converter may be connected to a fourth photoelectric converter via an optical fiber 9, and the fourth photoelectric converter may be connected to the preamplifier 261 via an electrical signal line;

[0081] In this embodiment, each sensor can be directly connected to the preamplifier 261 via an electrical signal line, or long-distance signal transmission between each sensor and the preamplifier 261 can be achieved by sequentially connecting the third photoelectric converter, the optical fiber 9, and the fourth photoelectric converter.

[0082] The preamplifier 261 is used to amplify the received electrical signal;

[0083] The low-pass filter is used to filter the amplified electrical signal;

[0084] The A / D converter 262 is used to perform analog-to-digital conversion on the filtered electrical signal;

[0085] When the filtered electrical signal is an analog signal, the A / D converter 262 is used to convert the filtered analog signal into a digital signal and send it to the MCU microcontroller 6; when the filtered electrical signal is a digital signal, it is sent directly to the MCU microcontroller 6.

[0086] The MCU microcontroller unit 6 is used to parse, process, generate detection data from the received digital signals, and control the output of the detection data.

[0087] like Figure 1 As shown, the data processing and display unit 7 includes a display device, which includes, but is not limited to, an LCD / LED display screen; the MCU microcontroller unit 6 includes a display control port, which is connected to the display device and is used to display the detection data.

[0088] Specifically, the transmission structure includes an impedance component 3, a second photoelectric converter 10, and a first photoelectric converter 4 disposed on the catheter body 1; one end of the impedance component 3 is connected to the first photoelectric converter 4 through a converter interface 31, and the other end of the impedance component 3 is connected to the transmission cable 5 in sequence through an optical fiber 9 and the second photoelectric converter 10; the transmission cable 5 is connected to the control unit 6 and the data processing and display unit 7 respectively.

[0089] Specifically, the transmission structure can be an electrical signal line, and the control unit 6 and the data processing and display unit 7 are directly connected to the monitoring unit 2 through the electrical signal line. In this embodiment, the control unit 6 and the monitoring unit 2 can be directly connected through the electrical signal line, or the long-distance signal transmission between the control unit 6, the data processing and display unit 7 and the preamplifier 261 can be achieved by connecting the first photoelectric converter 4, the impedance component 3, the optical fiber 9 and the second photoelectric converter 10 in sequence.

[0090] The impedance component 3 is used to ensure more stable signal transmission between the monitoring unit 2 and the data processing and display unit 7.

[0091] It should be noted that in this embodiment, the main function of the impedance component 3 is to stabilize the signal transmission between the monitoring unit and the data processing and display unit, reduce noise interference, and improve the reliability of data transmission. In this embodiment, a common-mode choke is preferentially selected as the impedance component 3.

[0092] A common-mode choke is a differential-mode inductor that can effectively suppress common-mode interference signals. It typically consists of two coils wound on the same magnetic core. When a differential-mode signal passes through, the magnetic fields generated by the two coils cancel each other out and have no effect on the signal. However, when a common-mode signal passes through, the magnetic fields generated by the two coils superimpose each other, producing a larger impedance, thereby suppressing common-mode interference.

[0093] like Figure 10 As shown, in normal or differential mode (single choke), current flows in one direction along one line from the source to the load, and flows out in the opposite direction on the return line, thus completing the circuit. In common mode, noise current propagates in the same direction along both lines. In common mode, the current in one set of lines propagates in the same direction, therefore the combined magnetic flux increases to generate opposing magnetic fields to block the noise, as... Figure 10 The upper and lower arrows in the toroidal core are shown. In differential mode, the current propagates in opposite directions, the magnetic flux is reduced or canceled out, so the magnetic field is not opposite to the normal mode signal.

[0094] The common-mode choke selected in this embodiment is VAC VITROPERM 500F T60006-L2025-W380, with the following main parameters: inductance 2.5mH, rated current 0.38A, and impedance 2200Ω (@100MHz). This model of common-mode choke is compact (10.4 x 6.0 x 4.5mm) and easy to integrate into the catheter body 1.

[0095] By using this common-mode choke, this embodiment can effectively improve the quality of signal transmission, ensure data accuracy, and meet the electromagnetic compatibility requirements of medical devices.

[0096] Specifically, the catheter body 1 further includes a catheter connector 12, an air balloon 13, a first sensor connector 14, and a second sensor connector 15 arranged in sequence; the catheter connector 12 is connected to the inlet end, and the outlet end is provided with an outlet tube 16; the monitoring unit 2 and the first photoelectric converter 4 are arranged in sequence between the first sensor connector 14 and the second sensor connector 15.

[0097] The liquid outlet pipe 16 includes a water injection valve port 161 and a liquid outlet 162, and the liquid outlet 162 is connected to the urine collection bag;

[0098] The catheter connector 12 is used to connect to the urethra at the patient's end;

[0099] Specifically, the catheter connector 12 is made of a biocompatible material to provide patients with a comfortable and safe user experience;

[0100] The water injection valve 161 is used to inject water into the balloon 13; after the balloon 13 is injected with water, it expands and is used to fix the catheter connector 12 to prevent the catheter connector 12 from falling off from the patient end during use.

[0101] It should be noted that: in this embodiment, the first sensor connector 14 is preferably a multi-layer microchannel-sensor embedded connector. This multi-layer microchannel-sensor embedded connector has a flow channel for urine transmission. For details, please refer to the existing literature (Flexible Distributed Pressure Sensing Strip for a Urethral Catheter).

[0102] Furthermore, the multilayer microfluidic-sensor embedded connector includes an outer layer, a flow guiding layer, a sensing layer, and a support layer. The outer layer is made of medical-grade silicone (Shore A 30) with a thickness of 0.5 mm and features a biocompatible sealing layer. The flow guiding layer uses PDMS microchannels (0.8 mm wide / 0.5 mm deep) with a thickness of 1.2 mm to guide urine through the detection area. The sensing layer is made of a polyimide substrate and copper electrodes with a thickness of 0.2 mm and is used to integrate a pressure / flow sensor array. The support layer is made of medical-grade PEEK with a thickness of 1.0 mm and provides mechanical support and an optical fiber channel.

[0103] Therefore, in this embodiment, urine can flow directly into the monitoring unit 2 through the flow channel in the first sensor connector 14.

[0104] like Figure 4 As shown, the urine oxygen partial pressure sensor 21 includes an infrared light source emitter 211, a filter 212, a sample chamber 213, and an infrared detector 214 connected in sequence.

[0105] The infrared light source emitter 211 is used to emit infrared light. Before use, a light source capable of covering a specific wavelength region absorbed by oxygen must be selected. The infrared light source emitter 211 is connected to the filter 212 via optical fiber 9. The infrared light source emitter 211 and the infrared detector 214 are positioned opposite each other at both ends of the sample chamber 213.

[0106] The filter 212 allows only infrared light of oxygen absorption wavelength to pass through, and is used to filter light sources of other wavelengths besides infrared light; a mounting bracket is provided between the infrared light source emitter 211 and the sample chamber 213, and the filter 212 is inserted into the mounting bracket for fixation;

[0107] The sample chamber 213 is an optically transparent container that allows infrared light to pass through, used to hold urine samples; infrared light filtered by the filter 212 enters from one end of the sample chamber 213, and the infrared light source emitter 211 receives the infrared light after passing through the urine sample at the other end of the sample chamber 213.

[0108] The filtered infrared light is aligned with the optical path of the infrared detector 214 to ensure that the infrared light passing through the urine sample can enter the infrared detector 214. In this embodiment, the sample chamber 213 is preferably made of quartz glass to reduce optical loss.

[0109] The infrared detector 214 is used to detect changes in the intensity of infrared light after passing through a urine sample;

[0110] In this embodiment, a detector sensitive to a specific oxygen absorption wavelength is preferred; the infrared detector 214 is connected to the signal processing unit 26;

[0111] In this embodiment, the urine oxygen partial pressure sensor 21 is based on the fluorescence quenching principle to quantitatively monitor dissolved oxygen, and the data unit is mmHg.

[0112] More specifically, the infrared light emitted by the infrared light source emitter 211 is filtered by the light filter 212, allowing only the infrared light band with oxygen absorption wavelength to pass through; after this beam of light passes through the sample chamber 213 containing the urine sample, its intensity change is detected by the infrared detector 214; by analyzing this intensity change, we can accurately determine the oxygen partial pressure in the urine.

[0113] It should be noted that the urine oxygen partial pressure sensor 21 in this embodiment incorporates the principle of infrared spectral absorption. The filter 212 in this embodiment is an optical device that allows light within a specific wavelength range to pass through while simultaneously blocking other wavelengths. Oxygen has multiple absorption bands in the near-infrared region, the most significant being the absorption band near a wavelength of 1.27 μm (7880 cm⁻¹). Therefore, the urine oxygen partial pressure sensor 21 in this embodiment primarily utilizes this wavelength range, as it is most suitable for detecting dissolved oxygen in urine and is not affected by the strong absorption by water molecules.

[0114] This near-infrared absorption-based oxygen detection technology has already been applied in the medical field, for example, in near-infrared spectroscopy for assessing skeletal muscle oxygenation status; for details, please refer to existing literature (Temperature dependence of the collision-induced absorption band of O2 near 1.27μm.) and existing literature (Analysis of Infrared Spectral Radiance of O2 1.27μm Band Based on Space-Based Limb Detection.), which will not be elaborated here.

[0115] Therefore, to ensure measurement accuracy, the urine oxygen partial pressure sensor 21 in this embodiment uses a narrowband filter with a center wavelength of 1.27 μm and a detector sensitive to this specific wavelength. Furthermore, our design also considers possible interference factors such as temperature and pressure changes to ensure the reliability of the measurement results.

[0116] It needs to be further explained that the filter 212 achieves the goal of allowing only infrared light of oxygen absorption wavelength to pass through. Specifically, it uses a narrow-band filter with a center wavelength of 1.27μm to allow infrared light with a wavelength around 1.27μm (7880cm^-1) to pass through.

[0117] like Figure 5 As shown, the urine flow rate and urine volume sensor 22 includes a first accumulation container 221, a liquid level sensor 222, a turbine flow sensor 224, and a flow sensor 224;

[0118] The liquid level sensor 222 and the turbine flow sensor 224 are disposed inside the first accumulation container 221;

[0119] The flow sensor 224 is connected to the turbine flow sensor 224; the liquid level sensor 222 and the flow sensor 224 are respectively connected to the signal processing unit 26.

[0120] like Figure 6 As shown, the monitoring unit 2 includes a second accumulation container 25, and the bladder pressure sensor 24 and the bladder temperature sensor 23 are integrated into the second accumulation container 25. When urine flows into the second accumulation container 25, the bladder pressure sensor 24 is used to sense the pressure change in the bladder and convert it into an electrical signal to be sent to the signal processing unit 26, and the bladder temperature sensor 23 is used to sense the temperature change in the bladder and convert it into an electrical signal to be sent to the signal processing unit 26.

[0121] Specifically, the data processing and display unit 7 includes at least one data analysis and early warning algorithm module; the data analysis and early warning algorithm module includes at least a data comparator; the data analysis and early warning algorithm module is used to compare the preset health parameter threshold with the detection data and generate corresponding health early warning information; the health early warning information is used to provide users with timely health advice or warnings.

[0122] Specifically, it also includes a communication module and a data storage module for storing the detection data; the data storage module is communicatively connected to the control module and the data processing and display unit 7, respectively.

[0123] In this embodiment, the data storage module is used to store historical monitoring data to facilitate subsequent long-term health status analysis and trend prediction for patients.

[0124] Specifically, the data storage module is an EEPROM (Electrically Erasable Programmable Read-Only Memory), which is directly connected to the MCU microcontroller unit 6 via an I2C or SPI interface;

[0125] The communication module is communicatively connected to the control unit 6. The communication module is used for real-time synchronization and remote transmission of data with the external device. The external device is a computer-based medical and health platform, or a smart device such as a tablet or mobile phone.

[0126] Specifically, it also includes a power module 8, and each of the sensors, the signal processing unit 26, the control unit 6, the data processing and display unit 7, the data storage module, and the communication module are connected to the power module 8; the power module 8 is used to provide power support for the entire urinary catheter device.

[0127] In this implementation, such as Figure 1 As shown, the operation procedure of the catheter device for intelligent urinary system health monitoring is as follows:

[0128] First, the catheter connector 12 is connected to the patient's urethra, and water is injected into the balloon 13 through the water injection valve 161 to inflate it. Then, urine flows from the catheter connector 12 into the drainage chamber 11, and the urine in the drainage chamber 11 flows into the monitoring unit 2 through the first sensor connector 14. In the monitoring unit 2, the urine flows sequentially through the urine oxygen partial pressure sensor 21, the urine flow rate and urine volume sensor 22, the bladder temperature sensor 23, and the bladder pressure sensor 24. The urine flowing out of the monitoring unit 2 passes through the second sensor connector 15 and finally flows out from the outlet 162 of the outlet tube 16 into the urine collection bag.

[0129] When urine flows through the monitoring unit 2, the urine oxygen partial pressure sensor 21, urine flow rate and volume sensor 22, bladder temperature sensor 23, and bladder pressure sensor 24 simultaneously detect the urine, obtain data signals, and send them to the signal processing unit 26 for processing to obtain detection data. The detection data is then transmitted to the control unit 6, the data processing and display unit 7, and the data storage module, respectively. The control unit 6 synchronizes and remotely transmits data with the external device in real time through the communication module.

[0130] In the data processing and display unit 7, the data analysis and early warning algorithm module compares the preset health parameter thresholds with the detection data to generate corresponding health early warning information, and the display device displays the detection data and health early warning information.

[0131] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A urinary catheter device for intelligent urinary system health monitoring, comprising a catheter body, the catheter body including an inlet end, an outlet end, and a drainage cavity disposed therein, the inlet end being connected to a patient end, the outlet end being connected to a urine collection bag, urine flowing in from the inlet end, and outputting through the drainage cavity to the urine collection bag at the outlet end; characterized in that, It also includes a monitoring unit, a control unit, and a data processing and display unit. The monitoring unit is located on the catheter body, and the urine in the drainage cavity flows through the monitoring unit. The catheter body is also provided with a transmission structure, and the control unit and the data processing and display unit are respectively connected to the monitoring unit through the transmission structure. The monitoring unit includes a urine oxygen partial pressure sensor, a urine flow rate and urine volume sensor, a bladder temperature sensor, a bladder pressure sensor, and a signal processing unit. The urine oxygen partial pressure sensor is used to acquire the partial pressure of oxygen in the urine. The urine flow rate and urine volume sensor is used to acquire the flow rate and urine volume of the urine. The bladder temperature sensor is used to acquire the temperature of the bladder. The bladder pressure sensor is used to measure the pressure inside the bladder. Each of the sensors is connected to the signal processing unit. The control unit communicates with external devices via a network.

2. The urinary catheter device for intelligent urinary system health monitoring according to claim 1, characterized in that, The signal processing unit is used to receive data signals detected by each of the sensors, generate detection data, and send them to the control unit and the data processing and display unit respectively. The control unit is operated and controlled via external buttons; The data processing and display unit is used to display detection data and health warning information; The signal processing unit also includes a preamplifier, a low-pass filter, an A / D converter, and an MCU microcontroller unit connected in sequence. Each of the sensors is connected to the preamplifier; the data signals detected by each sensor are electrical signals. The preamplifier is used to amplify the received electrical signal; The low-pass filter is used to filter the amplified electrical signal; The A / D converter is used to perform analog-to-digital conversion on the filtered electrical signal.

3. The catheter device for intelligent urinary system health monitoring according to claim 1, characterized in that, The transmission structure includes an impedance component, a second photoelectric converter, and a first photoelectric converter disposed on the catheter body; one end of the impedance component is connected to the first photoelectric converter through a converter interface, and the other end of the impedance component is connected to a transmission cable in sequence through an optical fiber and the second photoelectric converter; the transmission cable is connected to the control unit and the data processing and display unit respectively.

4. The urinary catheter device for intelligent urinary system health monitoring according to claim 3, characterized in that, The catheter body also includes a catheter connector, a balloon, a first sensor connector, and a second sensor connector arranged in sequence; the catheter connector is connected to the inlet end, and the outlet end is provided with an outlet tube; the monitoring unit and the first photoelectric converter are arranged in sequence between the first sensor connector and the second sensor connector. The liquid outlet pipe includes a water injection valve port and a liquid outlet, and the liquid outlet is connected to the urine collection bag; The catheter connector is used to connect to the urethra at the patient's end; The water injection valve is used to inject water into the airbag.

5. The urinary catheter device for intelligent urinary system health monitoring according to claim 1, characterized in that, The urine oxygen partial pressure sensor includes an infrared light source emitter, a filter, a sample chamber, and an infrared detector connected in sequence. The infrared light source emitter is used to emit infrared light; the infrared light source emitter is connected to the filter via an optical fiber; the infrared light source emitter and the infrared detector are positioned opposite each other at both ends of the sample chamber; The filter is used to filter light sources of other wavelengths except infrared light; a mounting frame is provided between the infrared light source emitter and the sample chamber, and the filter is inserted into the mounting frame for fixation; The sample chamber is used to contain a urine sample; infrared light filtered by the filter enters from one end of the sample chamber, and the infrared light source emitter receives the infrared light after passing through the urine sample at the other end of the sample chamber. The infrared detector is used to detect changes in the intensity of infrared light after passing through a urine sample; The infrared detector is connected to the signal processing unit.

6. The urinary catheter device for intelligent urinary system health monitoring according to claim 1, characterized in that, The urine flow rate and volume sensor includes a first accumulation container, a liquid level sensor, a turbine flow sensor, and a flow sensor; The liquid level sensor and the turbine flow sensor are located inside the first accumulation container; The flow sensor is connected to the turbine flow sensor; the level sensor and the flow sensor are respectively connected to the signal processing unit.

7. The urinary catheter device for intelligent urinary system health monitoring according to claim 1, characterized in that, The monitoring unit includes a second accumulation container, in which the bladder pressure sensor and the bladder temperature sensor are integrated.

8. The urinary catheter device for intelligent urinary system health monitoring according to claim 2, characterized in that, The data processing and display unit includes at least one data analysis and early warning algorithm module; the data analysis and early warning algorithm module is used to compare the preset health parameter threshold with the detection data.

9. A catheter device for intelligent urinary system health monitoring according to claim 2, characterized in that, It also includes a communication module and a data storage module for storing the detection data; the data storage module is communicatively connected to the control module and the data processing and display unit, respectively. The communication module is communicatively connected to the control unit, and is used for real-time synchronization and remote transmission of data with the external device.

10. A catheter device for intelligent urinary system health monitoring according to claim 9, characterized in that, It also includes a power module, and each of the sensors, the signal processing unit, the control unit, the data processing and display unit, the data storage module, and the communication module are connected to the power module; the power module is used to provide power support for the entire urinary catheter device.

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