A urinary clinical urethral catheter anti-falling alarm device

Abstract

The application discloses a urinary catheter anti-falling alarm device for urology department, and relates to the technical field of urology department clinical medical equipment.The device comprises an elastic restraint belt, a fixing assembly, a urinary catheter connection monitoring assembly and a monitoring alarm system.The elastic restraint belt is used for fixing the urinary catheter anti-falling alarm device on the surface of a patient.The fixing assembly is in sliding connection with the elastic restraint belt.The urinary catheter connection monitoring assembly is arranged on one side of the top of the fixing assembly.The monitoring alarm system is arranged in the fixing assembly.The device solves the core problems of poor fixing effect and high falling risk of traditional urinary catheters, improves the efficiency of medical staff through simplified operation and optimized data management, and takes into account the comfort and safety of patients, thereby reducing the incidence of complications such as urinary system infection and urethral injury, reducing the workload of medical staff, improving the experience of patients in diagnosis and treatment, and having obvious clinical value.The device can be widely applied to urology department, geriatric department, intensive care unit (ICU) and other scenes, and has high popularization potential and social and economic benefits.

Description

Technical Field

[0001] This invention relates to the field of urological clinical medical equipment technology, and in particular to an alarm device for preventing the dislodgement of urinary catheters used in clinical urology. Background Technology

[0002] In urological clinical treatment, urinary catheters are commonly used medical devices to help patients drain urine. However, in actual use, urinary catheters are prone to dislodgement due to factors such as patients turning over, moving, or improper fixation. Dislodgement of the urinary catheter not only affects the drainage effect and leads to urine retention, but may also cause damage to the patient's urethra, increasing the risk of urinary tract infection. It also increases the workload of medical staff, as the catheter needs to be reinserted. Currently, in clinical practice, urinary catheters are mainly secured with adhesive tape or simple fixation patches. However, these methods are not very effective, and the fixation structure easily loosens with patient movement, failing to effectively prevent catheter dislodgement. Furthermore, existing technology lacks a device that can monitor catheter dislodgement in real time and issue an alarm promptly. Medical staff can only check the catheter's fixation status through periodic rounds, often failing to detect dislodgement in time, delaying treatment and causing unnecessary pain and risks to patients. Therefore, there is an urgent need for a device that can effectively secure urinary catheters and issue an alarm promptly when the catheter is about to dislodge or has dislodged, in order to solve the above problems. Summary of the Invention

[0003] The present invention provides a urological catheter anti-dislodgement alarm device, which solves the above-mentioned shortcomings of the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A urological catheter anti-dislodgement alarm device for clinical use includes: Elastic restraint straps are used to secure the catheter anti-dislodgement alarm device to the patient's body surface; The fixed component is slidably connected to the elastic constraint band. The urinary catheter is connected to the monitoring component and fixed to one side of the top of the component. The monitoring and alarm system, located inside the fixed component, is used for monitoring and alerting against catheter dislodgement.

[0005] Furthermore, the fixing component includes a front cover and a rear cover. One side of the front cover is hinged to the rear cover. An LED warning light and a display screen are fixedly connected to the front cover. A mounting hole is provided on one side of the rear cover, and a switch is installed inside the mounting hole. A charging port is provided on one side of the rear cover. Two U-shaped clips are symmetrically fixedly connected to the back of the rear cover. An elastic restraint band moves through the interior of the two U-shaped clips. An anti-slip pad is provided on the back of the rear cover. The anti-slip pad contacts the patient's skin and is used to fix and limit the patient's position in the fixing component.

[0006] Furthermore, the catheter connection monitoring assembly includes a first clamp plate fixedly connected to one side of the top of the rear cover, a second clamp plate hinged to one side of the first clamp plate, fastening plates fixedly connected to the top of the first and second clamp plates respectively, fastening nuts threaded onto the fastening plates, an elastic clamping plate fixedly connected to one side of the second clamp plate, and a clamping block fixedly connected to one side of the first clamp plate corresponding to the elastic clamping plate, the elastic clamping plate engaging with the clamping block.

[0007] Furthermore, the rear cover is internally fixed with multiple tube body rubber clamps and rubber protective blocks. The tube body rubber clamps hold the catheter body. The upper and lower sides of the rear cover and the front cover are respectively provided with slots corresponding to the catheter body. The upper and lower ends of the catheter body are respectively fitted into the corresponding slots. The rubber protective blocks are all in contact with both sides of the catheter body to provide surface protection for the catheter body.

[0008] Furthermore, a urinary catheter body is movably sleeved inside the first and second clamps. One end of the urinary catheter body is snapped into the urinary catheter body and is located inside the first and second clamps. Multiple pressure sensors and displacement sensors are fixedly connected inside the first and second clamps, respectively. The pressure sensors are used to monitor the clamping pressure between the urinary catheter body and the urinary catheter body in real time, and the displacement sensors are used to monitor and collect data on the displacement of the urinary catheter body and the urinary catheter body in real time.

[0009] Furthermore, the monitoring and alarm system includes a data processing unit, a power supply module, and an alarm module. The data processing unit includes a signal acquisition module, a wireless transmission module, a data analysis module, and an alarm triggering linkage module. The wireless transmission module is electrically connected to the alarm triggering linkage module and is used to send alarm trigger signals to the mobile terminals of medical personnel to realize remote alarm. The wireless transmission module adopts Bluetooth or Wi-Fi communication protocols.

[0010] Furthermore, the alarm module includes a buzzer, and both the buzzer and the LED warning light are located inside the rear cover and are electrically connected to the data processing unit. When the data processing unit sends an alarm trigger signal, the buzzer emits an audible alarm, and the LED warning light emits a visual alarm. The power module includes a lithium battery, which is electrically connected to the pressure sensor, displacement sensor, data processing unit, buzzer, and LED warning light to provide operating power.

[0011] Furthermore, the signal acquisition module is electrically connected to the pressure sensor and the displacement sensor to acquire the displacement and pressure parameters at the connection between the urinary catheter body and the catheter body in real time. The data analysis module is used to perform threshold analysis and stability assessment on the displacement and pressure values ​​acquired by the signal acquisition module. When the clamping pressure is less than the preset pressure threshold, it indicates that the connection between the urinary catheter body and the catheter main body may be loose, and the catheter main body has a tendency to detach. The displacement sensor can detect the displacement of the catheter main body relative to the urinary catheter body. When the displacement is greater than the preset displacement threshold, it indicates that the catheter main body has undergone significant displacement or is about to detach. Through dual monitoring, the connection position status between the urinary catheter body and the catheter main body can be comprehensively and accurately grasped, avoiding missed or false detections. Furthermore, the alarm triggering linkage module is electrically connected to the alarm module and is used to receive information commands sent by the data analysis module indicating that the main body of the urinary catheter has detached or is about to detach from the main body of the urinary catheter, and to issue an alarm sound through a buzzer.

[0012] Furthermore, the two ends of the elastic restraint band are detachably connected by adjusting buckles to form a ring structure for wearing on the patient's thigh or waist.

[0013] Compared with existing technologies, the beneficial effects of this invention are: 1. This invention forms a three-level fixation system through "elastic restraint strap + fixation component + catheter connection monitoring component": The elastic restraint strap is designed with breathable medical cotton and silicone anti-slip particles, which can be stably fitted on the patient's waist or thigh. The buckle can be adjusted to adapt to different body shapes, preventing the device from shifting due to patient movement; The U-shaped clip and anti-slip pad of the fixation component further restrict lateral sliding, ensuring that the whole device fits tightly against the patient's body surface; The first and second clamps of the catheter connection monitoring component, together with the fastening nut, can be adapted to 10-16Fr catheters. Through the snap-fit ​​structure of the elastic clamp and the clamping block, a firm clamping is achieved at the connection between the catheter and the urinary catheter, solving the problem of easy loosening of traditional adhesive tape fixation; 2. This invention adopts a collaborative design of "three-level fixation + dual-mode monitoring + hierarchical alarm + remote management", and at the same time, by installing a catheter connection monitoring component and a monitoring alarm system, it performs real-time status monitoring and evaluation of the connection between the catheter and the urinary catheter. In summary, this device not only solves the core problems of poor fixation and high risk of dislodgement of traditional urinary catheters, but also improves medical and nursing efficiency by simplifying operation and optimizing data management. At the same time, it takes into account patient comfort and treatment safety. It has significant clinical value in reducing the incidence of complications such as urinary tract infections and urethral injuries, reducing the workload of medical and nursing staff, and improving the patient's treatment experience. It can be widely used in urology, geriatrics, intensive care units (ICUs) and other scenarios, and has high potential for promotion and socio-economic benefits. Attached Figure Description

[0014] Figure 1 This is a first top-view three-dimensional structural diagram of the overall structure of the urinary catheter anti-dislodgement alarm device proposed in this invention; Figure 2 This is a second top-view three-dimensional structural diagram of the overall structure of the urological clinical catheter anti-dislodgement alarm device proposed in this invention; Figure 3 This is a three-dimensional top-view diagram of the overall structure of the urinary catheter anti-dislodgement alarm device proposed in this invention. Figure 4 This is a top-view three-dimensional structural diagram of the internal structure of the rear cover of a urological clinical catheter anti-dislodgement alarm device proposed in this invention. Figure 5 This is a top-view three-dimensional structural diagram of the back cover and anti-slip pad of a urological clinical catheter anti-dislodgement alarm device proposed in this invention; Figure 6 This is a system block diagram of a monitoring and alarm system for a urinary catheter anti-dislodgement alarm device proposed in this invention.

[0015] In the diagram: 1. Fixing assembly; 101. Rear cover; 102. Front cover; 103. Display screen; 104. LED warning light; 105. Switch; 106. Charging port; 107. U-shaped locking strip; 108. Anti-slip mat; 2. Urinary catheter connection monitoring assembly; 201. First clamp; 202. Second clamp; 203. Fastening nut; 204. Elastic clamp; 205. Locking block; 3. Elastic restraint band; 4. Urinary catheter body; 5. Urinary catheter body; 6. Monitoring and alarm system; 601. Data processing unit; 602. Power module; 603. Alarm module; 7. Tube body rubber fixing clamp; 8. Rubber protective block. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0017] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0018] Example: Refer to Figures 1-5 A urological clinical catheter anti-dislodgement alarm device includes: an elastic restraint strap 3, a fixing component 1, a catheter connection monitoring component 2, and a monitoring alarm system 6; In this invention, the fixing component 1 includes a front cover 102 and a rear cover 101, which are hinged together and can be opened and closed around the hinge axis with an opening angle range of 0-180°. After closing, they are locked by buckles on both sides, facilitating the maintenance of internal components and the installation of the catheter. An LED warning light 104 and a display screen 103 are fixedly connected to the front cover 102 for real-time display of pressure value (unit: N), displacement (unit: mm), battery power (unit: %), and equipment working status (normal / warning / alarm). Three LED warning lights 104 are set on one side of the display screen 103 (using a three-LED configuration). The LED patch has a green light that is always on in normal condition, a yellow light that flashes in warning condition, and a red light that flashes frequently in alarm condition (flashing frequency 2 times / second). A mounting hole is provided on one side of the back cover 101, and a switch 105 is installed inside the mounting hole. A charging port 106 is provided on one side of the back cover 101. Two U-shaped clips 107 are symmetrically fixed to the back of the back cover 101. An elastic restraint band 3 moves through the inside of the two U-shaped clips 107. An anti-slip pad 108 is provided on the back of the back cover 101. The anti-slip pad 108 contacts the patient's skin and is used to fix and limit the patient's position of the fixation component 1. It is worth mentioning that: the anti-slip mat 108 is made of medical-grade silicone material, which comes into contact with the patient's skin and prevents the fixation components from shifting through friction with the skin; the charging port 106 uses a Type-C interface for easy charging of the lithium battery; the switch 105 is a rocker switch (IP65 waterproof rating to prevent the ingress of medicine and sweat) used to control the power supply of the device; the charging port 106 (supports 5V / 1A charging, charging time ≤2 hours, continuous operation ≥72 hours after full charge) is equipped with a silicone dust plug, which is sealed to prevent dust and water when not in use; the U-shaped clips 107 (3cm spacing, with silicone pads on the inner wall) have elastic restraint bands 3 that move through the inside of the U-shaped clips 107 and can slide along the length of the U-shaped clips 107 (sliding range 0-5cm), which makes it easy to adjust the position of the fixation component 1 on the elastic restraint band 3 to adapt to different patient body surface curvatures.

[0019] In this invention, the catheter connection monitoring assembly 2 includes a first clamping plate 201 fixedly connected to one side of the top of the rear cover 101, a second clamping plate 202 hinged to one side of the first clamping plate 201, fastening plates fixedly connected to the top of the first clamping plate 201 and the second clamping plate 202 respectively, fastening nuts 203 threadedly connected to the fastening plates, an elastic clamping plate 204 fixedly connected to one side of the second clamping plate 202, and a clamping block 205 fixedly connected to one side of the first clamping plate 201 corresponding to the elastic clamping plate 204, the elastic clamping plate 204 and the clamping block 205 engaging. It is worth mentioning that: the first clamp 201 and the second clamp 202 (both are made of medical PP material, 2mm thick, 5cm long and 2cm wide) are fixed to the bottom of the first clamp 201 and one side of the top of the back cover 101 by screws, and one side of the second clamp 202 is hinged to one side of the first clamp 201. They can be opened and closed around the hinge axis. When closed, the two form a circular clamping cavity (the inner diameter is suitable for 10-16Fr specification urinary catheters, which meets the size of commonly used urinary catheters in clinical practice). Both the first clamping plate 201 and the second clamping plate 202 have rectangular fastening plates (2cm in length and 1cm in width) extending from their tops. A threaded hole (3mm in diameter) is opened in the center of the fastening plate. The two are locked and fixed by fastening nuts 203 (which are wing nuts that can be manually tightened without tools, making them easy to install and remove quickly). Adjusting the tightness of the fastening nuts 203 can change the inner diameter of the clamping cavity to accommodate different sizes of urinary catheters.

[0020] In this invention, the rear cover 101 is internally fixedly connected with multiple tube body rubber fixing clips 7 and rubber protective blocks 8. The multiple tube body rubber fixing clips 7 are internally fitted with the catheter body 5. The upper and lower sides of the rear cover 101 and the front cover 102 are respectively provided with slots corresponding to the catheter body 5. The upper end and lower end of the catheter body 5 are respectively fitted into the corresponding slots. The rubber protective blocks 8 are all in contact with both sides of the catheter body 5 to provide surface protection for the catheter body 5. It is worth mentioning that: the inner wall of the tube body rubber fixing clip 7 is provided with a flexible rubber layer, and an opening is provided on one side of the tube body rubber fixing clip 7. The opening is detachably connected by a buckle structure, which facilitates the installation and removal of the catheter body 5. The rubber protective block 8 is made of medical silicone material, with a height of 1cm and a width of 0.8cm. The rubber protective block 8 abuts against the outer wall of the catheter body 5, which on the one hand restricts the lateral displacement of the catheter body 5, and on the other hand buffers the external impact force to prevent the catheter body 5 from being damaged due to collision or pulling.

[0021] In this invention, a urinary catheter body 4 is movably sleeved inside the first clamping plate 201 and the second clamping plate 202. One end of the urinary catheter body 4 is snapped into the urinary catheter body 5 and is located inside the first clamping plate 201 and the second clamping plate 202. Multiple pressure sensors and displacement sensors are fixedly connected inside the first clamping plate 201 and the second clamping plate 202, respectively. The pressure sensors are used to monitor the clamping pressure between the urinary catheter body 4 and the urinary catheter body 5 in real time, and the displacement sensors are used to monitor and collect data on the displacement of the urinary catheter body 5 and the urinary catheter body 4 in real time. It is worth mentioning that the catheter body 5 is compatible with clinically commonly used 10-16Fr specification latex or silicone catheters. One end of the catheter body 5 is connected to the patient's urethra, and the other end passes through the slot of the fixing component 1 and the tube body rubber fixing clip 7, and is snapped into the catheter body 4. One end of the urinary catheter body 4 is connected to the urinary catheter body 5 via a standard Luer connector (the connector is located in the clamping cavity of the urinary catheter connection monitoring component 2).

[0022] In this invention, the two ends of the elastic restraint band 3 are detachably connected by adjusting buckles to form a ring structure for wearing on the patient's thighs or waist. The elastic restraint band 3 is made of breathable medical cotton material to improve the patient's wearing comfort. At the same time, 0.5mm thick medical silicone anti-slip particles are evenly distributed on the inner side of the elastic restraint band 3 to increase friction with the skin and prevent the device from shifting. Breathable holes (1-2mm in diameter, 5mm in spacing) are provided in key areas where the elastic restraint band 3 contacts the skin (such as the sides of the waist and the inner thighs) to improve breathability and reduce the risk of skin stuffiness and allergies caused by prolonged wear.

[0023] Reference Figure 6 A urological clinical catheter anti-dislodgement alarm device, in this embodiment, the monitoring alarm system 6 includes a data processing unit 601, a power supply module 602 and an alarm module 603. The data processing unit 601 includes a signal acquisition module, a wireless transmission module, a data analysis module and an alarm trigger linkage module. The wireless transmission module is electrically connected to the alarm trigger linkage module and is used to send the alarm trigger signal to the mobile terminal of medical staff, such as a mobile phone or a nurse station host, to realize remote alarm. The wireless transmission module adopts Bluetooth or Wi-Fi communication protocol. Wireless transmission module: Supports dual-mode communication of Bluetooth 4.0 (communication distance 10-20m, suitable for short-range transmission in wards) and Wi-Fi (communication distance 50-100m, suitable for remote reception at the nurse station), and can simultaneously connect to medical staff's mobile terminals (phones, tablets) and the nurse station host; the transmitted content includes device number (for easy patient location), abnormality type (loose / about to fall off / already fallen off), real-time pressure value / displacement amount, and alarm time.

[0024] In this invention, the alarm module 603 includes a buzzer, and both the buzzer and the LED warning light 104 are disposed inside the rear cover 101 and electrically connected to the data processing unit 601. When the data processing unit 601 sends an alarm trigger signal, the buzzer emits an audible alarm, and the LED warning light 104 emits a visual alarm. The power module 602 includes a lithium battery, which is electrically connected to the pressure sensor, displacement sensor, data processing unit 601, buzzer, and LED warning light 104 respectively, and is used to provide working power. It is worth mentioning that the lithium battery is a 3.7V / 500mAh lithium battery (rechargeable, with ≥500 charge / discharge cycles), a charging management chip (model TP4056, with overcharge, over-discharge, and short-circuit protection functions), and a voltage detection module. The lithium battery supplies power to the pressure sensor, displacement sensor, data processing unit 601, alarm module 603, display screen 103, and LED warning light 104 via wires. The voltage detection module monitors the battery level in real time. When the battery level is <10%, the display screen shows a "low battery" prompt, and the LED warning light 104 flashes green to remind medical staff to charge the battery in time.

[0025] In this invention, the signal acquisition module is electrically connected to the pressure sensor and the displacement sensor to collect the displacement and pressure parameters at the connection between the urinary catheter body 4 and the urinary catheter body 5 in real time. The data analysis module is used to perform threshold analysis and stability judgment on the displacement and pressure values ​​collected by the signal acquisition module. When the clamping pressure is less than the preset pressure threshold, it indicates that the connection between the urinary catheter body 4 and the urinary catheter body 5 may be loose and the urinary catheter body 5 has a tendency to fall off. The displacement sensor can detect the displacement of the urinary catheter body 5 relative to the urinary catheter body 4. When the displacement is greater than the preset displacement threshold, it indicates that the urinary catheter body 5 has been significantly displaced or is about to fall off. Through dual monitoring, the connection position status between the urinary catheter body 4 and the urinary catheter body 5 can be fully and accurately grasped to avoid missed detection or false detection. Data analysis module: Includes built-in preset thresholds (adjustable via a mobile app for healthcare workers to suit different patient needs), including pressure thresholds (2-3 N for regular patients, 1.5-2 N for elderly / sensitive patients) and displacement thresholds (5 mm for regular patients, 4 mm for children / patients with low activity levels). The data analysis module performs real-time analysis of the collected pressure and displacement values. When the pressure value is less than the pressure threshold and greater than or equal to 0.5 × the pressure threshold, it is determined as "catheter loosening" and an alarm is triggered. When the pressure value is less than 0.5 × pressure threshold or the displacement is greater than the displacement threshold, it is determined that "the catheter is about to fall off" and an alarm is triggered. If the pressure value is less than 0.1N for 10 seconds or the displacement is greater than 10mm for 5 seconds, it is determined that "the catheter has been dislodged" and an emergency alarm is triggered.

[0026] In this invention, the alarm trigger linkage module is electrically connected to the alarm module 603, and is used to receive the information command sent by the data analysis module that the catheter body 5 and the urinary catheter body 4 have fallen off or are about to fall off, and to emit a warning bell through a buzzer. The alarm trigger linkage module enables tiered audible and visual alarms: Warning (Loosening): The buzzer emits a 1kHz low-frequency warning sound (volume 60-70dB, to avoid disturbing the patient), and the LED warning light 104 flashes yellow (frequency 1 time / second). Alarm (imminent detachment): The buzzer emits a 3kHz high-frequency alarm sound (volume 80-90dB, ensuring that medical staff can hear it outside the ward), and the LED warning light 104 red light flashes (frequency 2 times / second). Emergency alarm (detached): The buzzer emits a 3kHz high-frequency alarm sound (volume 90-100dB) continuously without interruption, the LED warning light 104 red light flashes rapidly (frequency 3 times / second), and the wireless transmission module repeatedly pushes alarm information every 30 seconds until medical staff manually reset it.

[0027] Working principle: When in use, the catheter body (4) and the catheter body are first fixed within the first clamp 201 and the second clamp 202 through the catheter connection monitoring component 2, and the buckle structure is closed. Then, the elastic restraint band 3 is wrapped around the patient's waist or thigh root, and the tightness is adjusted by Velcro so that the anti-slip pad 108 is in close contact with the patient's body surface. At this time, the pressure sensor begins to collect the pressure value of the elastic restraint band 3 on the patient's body surface and transmits the pressure signal to the data analysis module. The displacement sensor is in contact with the outer wall of the catheter and collects the displacement of the catheter relative to the fixing ring in real time and transmits the displacement signal to the data analysis module.

[0028] The data analysis module pre-sets a pressure threshold (this threshold is set according to the patient's body size and clinical fixation standards to ensure that the elastic restraint band 3 is firmly fixed and does not affect the patient's blood circulation) and a displacement threshold (this threshold is set as the maximum allowable displacement when the catheter is at risk of dislodgement, such as 5mm). When the patient's movement causes the elastic restraint band 3 to loosen, the pressure value collected by the pressure sensor will be lower than the set pressure threshold. After receiving this signal, the data analysis module immediately sends a warning trigger signal to the alarm component. The buzzer emits a low-frequency warning sound, and the LED warning light emits a yellow light. At the same time, the wireless transmission module sends the warning information to the medical staff's mobile terminal. When the catheter is displaced and the displacement exceeds the set displacement threshold, the data analysis module sends an alarm trigger signal. The buzzer emits a high-frequency alarm sound, and the LED warning light 104 emits a red light. The wireless transmission module sends the alarm information to the medical staff's mobile terminal, reminding the medical staff to handle the situation immediately.

[0029] After receiving a warning or alarm, medical staff can view the real-time pressure value and displacement on the display screen, and adjust the tightness of the elastic restraint band 3 or re-fix the catheter in a timely manner to prevent the catheter from falling out.

[0030] The following detailed description is provided in conjunction with specific embodiments: (I) Example 1 This embodiment provides a urological clinical catheter anti-dislodgement alarm device suitable for adult male patients. The elastic restraint band 3 is 80-100cm long and 3-5cm wide, made of breathable medical cotton material to ensure comfortable wearing and a certain degree of elasticity. The inner diameter of the tube body rubber fixing clip 7 is set to 10-14Fr according to the commonly used catheter specifications, and the thickness of the inner wall flexible rubber layer is 1-2mm to avoid damage to the outer wall of the catheter. The pressure sensor uses a thin-film pressure sensor of model FSR402, with a measurement range of 0-10N, an accuracy of ±0.1N, and a pressure threshold set to 2-3N. The displacement sensor uses an infrared displacement sensor of model KY-031, with a measurement range of 0-10mm, an accuracy of ±0.1mm, and a displacement threshold set to 5mm. The data analysis module uses an STM32F103C8T6 microcontroller, which features small size, low power consumption, and fast processing speed. The buzzer uses a passive buzzer, with a sound frequency of 1kHz for warning and 3kHz for alarm. The LED warning light 104 uses a tri-color LED, displaying yellow for warning, red for alarm, and green for normal conditions. The wireless transmission module uses Bluetooth 4.0, with a communication distance of 10-20 meters. It can connect to the attending physician's smartphone app and the nurses' station. The lithium battery has a capacity of 500mAh, uses 3.7V DC power, and can be used continuously for over 72 hours on a single charge. The display screen 103 uses a 0.96-inch OLED display with a resolution of 128×64, clearly displaying pressure values ​​and displacement.

[0031] In use, the catheter body 5 is passed through the rubber clamp 7, and the catheter body 4 is connected to the catheter body 5 inside the first clamp 201 and the second clamp 202. The elastic restraint strap 3 is wrapped around the patient's waist, and the tightness is adjusted using Velcro. The initial pressure value collected by the pressure sensor is 2.5N, at which point the display shows a pressure value of 2.5N and a displacement of 0mm. When the patient turns over, causing the connection between the catheter body 4 and the catheter body 5 to loosen and the pressure value to drop to 1.8N (below the pressure threshold of 2N), the buzzer emits a 1kHz low-frequency warning sound, and the LED... When warning light 104 turns yellow, the smartphone app receives a warning message: "Catheter body 5 is loose, please check." When the patient unconsciously pulls on catheter body 5 and the displacement reaches 5.2mm (exceeding the displacement threshold of 5mm), the buzzer emits a 3kHz high-frequency alarm sound, LED warning light 104 turns red, and the smartphone app receives an alarm message: "Catheter body 5 is about to fall off, handle immediately." After receiving the message, the attending medical staff or nurses at the nursing station should promptly go to the patient's ward to adjust the tightness of the connection between catheter body 4 and catheter body 5 to ensure that catheter body 5 is securely fixed.

[0032] (II) Example 2 The difference between this embodiment and embodiment 1 is that it is suitable for elderly female patients. Considering that the skin of elderly patients is more fragile, the anti-slip pad of the elastic restraint band 3 is made of softer medical silicone material and the thickness is increased to 3mm. The pressure threshold is set to 1.5~2N to avoid compressing the patient's skin. The displacement sensor is a color recognition displacement sensor of model TCS3200, which monitors the displacement by recognizing the color mark on the outer wall of the catheter body 5 to improve the monitoring accuracy. The displacement threshold is set to 4mm. The wireless transmission module is a Wi-Fi module, which can be directly connected to the nurse station host. Alarm information is not only sent to the mobile terminal of medical staff, but also popped up on the display screen of the nurse station host, so that the nurse station can keep track of the patient's catheter status in real time. During use, when the pressure at the connection between the main body 4 and the main body 5 of the urinary catheter drops to 1.4N, the nurse station host and the medical staff's mobile phones simultaneously receive an early warning message; when the displacement of the main body 5 of the urinary catheter reaches 4.1mm, a high-frequency alarm is issued, and the nurse station host emits an audible and visual prompt, allowing medical staff to quickly locate the patient's ward and handle the situation in a timely manner, effectively preventing the urinary catheter from falling out.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A urological clinical catheter anti-dislodgement alarm device, characterized in that, include: Elastic restraint strap (3) is used to fix the catheter anti-dislodgement alarm device to the patient's body surface; The fixed component (1) is slidably connected to the elastic constraint band (3); The urinary catheter is connected to the monitoring component (2) on one side of the top of the fixing component (1); The monitoring and alarm system (6), located inside the fixing component (1), is used for monitoring and alerting against catheter dislodgement.

2. The urological clinical catheter anti-dislodgement alarm device according to claim 1, characterized in that, The fixing component (1) includes a front cover (102) and a rear cover (101). One side of the front cover (102) is hinged to the rear cover (101). An LED warning light (104) and a display screen (103) are fixedly connected to the front cover (102). A mounting hole is provided on one side of the rear cover (101). A switch (105) is installed inside the mounting hole. A charging port (106) is provided on one side of the rear cover (101). Two U-shaped clips (107) are symmetrically fixedly connected to the back of the rear cover (101). The elastic restraint band (3) moves through the interior of the two U-shaped clips (107). An anti-slip pad (108) is provided on the back of the rear cover (101). The anti-slip pad (108) contacts the patient's skin and is used to fix and limit the patient's position of the fixing component (1).

3. The urological clinical catheter anti-dislodgement alarm device according to claim 2, characterized in that, The catheter connection monitoring assembly (2) includes a first clamp (201) fixedly connected to one side of the top of the rear cover (101), a second clamp (202) hinged to one side of the first clamp (201), fastening plates fixedly connected to the top of the first clamp (201) and the second clamp (202) respectively, and fastening nuts (203) threadedly connected to the fastening plates. An elastic clamp (204) is fixedly connected to one side of the second clamp (202), and a clamping block (205) is fixedly connected to one side of the first clamp (201) corresponding to the elastic clamp (204). The elastic clamp (204) and the clamping block (205) are engaged.

4. The urological clinical catheter anti-dislodgement alarm device according to claim 2, characterized in that, The rear cover (101) is internally fixed with multiple tube body rubber fixing clips (7) and rubber protective blocks (8). The multiple tube body rubber fixing clips (7) hold the catheter body (5). The upper and lower sides of the rear cover (101) and the front cover (102) are respectively provided with slots corresponding to the catheter body (5). The upper and lower ends of the catheter body (5) are respectively fitted into the corresponding slots. The rubber protective blocks (8) all abut against the sides of the catheter body (5) to provide surface protection for the catheter body (5).

5. The urological clinical catheter anti-dislodgement alarm device according to claim 3, characterized in that, The first clamp (201) and the second clamp (202) are movably fitted with a urinary catheter body (4). One end of the urinary catheter body (4) is snapped into the urinary catheter body (5) and is located inside the first clamp (201) and the second clamp (202). Multiple pressure sensors and displacement sensors are fixedly connected inside the first clamp (201) and the second clamp (202). The pressure sensors are used to monitor the clamping pressure between the urinary catheter body (4) and the urinary catheter body (5) in real time. The displacement sensors are used to monitor and collect data on the displacement of the urinary catheter body (5) and the urinary catheter body (4) in real time.

6. The urological clinical catheter anti-dislodgement alarm device according to claim 2, characterized in that, The monitoring and alarm system (6) includes a data processing unit (601), a power supply module (602), and an alarm module (603). The data processing unit (601) includes a signal acquisition module, a wireless transmission module, a data analysis module, and an alarm trigger linkage module. The wireless transmission module is electrically connected to the alarm trigger linkage module and is used to send the alarm trigger signal to the mobile terminal of the medical staff to realize remote alarm. The wireless transmission module adopts Bluetooth or Wi-Fi communication protocol.

7. The urological clinical catheter anti-dislodgement alarm device according to claim 6, characterized in that, The alarm module (603) includes a buzzer, and the buzzer and LED warning light (104) are both located inside the rear cover (101) and electrically connected to the data processing unit (601). When the data processing unit (601) sends an alarm trigger signal, the buzzer emits an audible alarm, and the LED warning light (104) emits a visual alarm. The power module (602) includes a lithium battery, which is electrically connected to the pressure sensor, displacement sensor, data processing unit (601), buzzer and LED warning light (104) respectively, and is used to provide working power.

8. A urological clinical catheter anti-dislodgement alarm device according to claim 6, characterized in that, The signal acquisition module is electrically connected to the pressure sensor and the displacement sensor, and is used to collect the displacement and pressure parameters at the connection between the urinary catheter body (4) and the urinary catheter body (5) in real time. The data analysis module is used to perform threshold analysis and stability assessment on the displacement and pressure values ​​acquired by the signal acquisition module.

9. A urological clinical catheter anti-dislodgement alarm device according to claim 6, characterized in that, The alarm triggering linkage module is electrically connected to the alarm module (603) and is used to receive information commands sent by the data analysis module that the catheter body (5) and the urinary catheter body (4) have fallen off or are about to fall off, and to issue a warning bell through a buzzer.

10. A urological clinical catheter anti-dislodgement alarm device according to claim 1, characterized in that, The two ends of the elastic restraint band (3) are detachably connected by adjusting buckles to form a ring structure, which is used to be worn on the patient's thigh or waist.

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