Multi-sensor fusion cardiopulmonary resuscitation compression assisting device with voice prompting function

Abstract

This utility model relates to the field of cardiopulmonary resuscitation (CPR) equipment technology, specifically a multi-sensor fusion CPR compression assist device with voice prompts. It includes a base plate, an inverted U-shaped positioning frame mounted on top of the base plate, a control chamber mounted on top of the U-shaped positioning frame, a compression component mounted on the lower part of the control chamber, and a speaker mounted on the outer wall of the control chamber. The patient lies flat inside the U-shaped positioning frame, and the compression component is controlled by the control chamber to perform CPR in a cyclical manner. Several sensors monitor pressure and velocity. This multi-sensor fusion CPR compression assist device with voice prompts uses a combination structure of a base plate and an inverted U-shaped positioning frame. One end of the U-shaped positioning frame is rotatably connected via a hinge, and the other end is snapped in place by a buckle, allowing for quick opening and closing to position the patient. This solves the problems of complex and time-consuming installation of traditional pneumatic / electric resuscitation devices.

Description

Technical Field

[0001] This utility model relates to the field of cardiopulmonary resuscitation (CPR) equipment technology, and more specifically, to a CPR compression assist device with voice prompt function that integrates multiple sensors. Background Technology

[0002] Cardiopulmonary resuscitation (CPR), a crucial life-saving measure for cardiac and respiratory arrest, aims to establish temporary artificial circulation through chest compressions and other methods, restoring spontaneous heartbeat and blood circulation, while simultaneously replacing spontaneous breathing with artificial respiration to provide basic blood and oxygen supply to the heart, brain, and other vital organs, thus maintaining life support. Despite continuous improvements over the past 60 years since the invention of modern CPR, the overall survival rate for patients with cardiac arrest has not significantly improved.

[0003] Currently, cardiopulmonary resuscitation (CPR) primarily relies on manual chest compressions. While this method is simple to perform, requires no equipment, and can be conducted anytime, anywhere, it remains a fundamental and effective approach. However, its drawbacks are also significant. Firstly, the operator directly presses on the sternum with the heel of their hand. Due to the hardness of the sternum, prolonged pressure can easily lead to pain in the heel of the hand, and even soft tissue injury or fracture, thus affecting the strength and quality of compressions. Secondly, manual chest compressions are extremely physically demanding, especially during extended periods. The operator quickly becomes fatigued and unable to sustain high-quality compressions. Studies show that the quality of compressions significantly decreases after more than two minutes of continuous manual compression; therefore, the person performing the compressions typically needs to be replaced every two minutes to ensure quality.

[0004] To address the drawbacks of manual chest compressions, various cardiopulmonary resuscitation (CPR) devices, such as pneumatic or electric ones, have been developed. However, these devices are generally bulky and inconvenient to carry, making them difficult to deploy immediately on-site. Furthermore, their installation process is complex, often requiring 1-2 minutes or even longer, during which chest compressions must be stopped. This undoubtedly delays precious rescue time, increasing the time the patient experiences no chest compressions, no heartbeat, and ischemia / hypoxia. Even if subsequent compressions are of high quality, it is difficult to compensate for the damage caused by the initial delay. In addition, these devices are expensive to produce and face significant challenges in their widespread adoption in hospitals and communities at all levels.

[0005] Furthermore, existing CPR equipment has shortcomings in compression monitoring. Most devices cannot accurately and in real-time monitor key parameters such as compression force and speed, making it difficult to ensure that compressions meet the standards of high-quality CPR, while also ensuring sufficient chest recoil, a sufficient number of compressions, and minimizing interruptions in compressions. Utility Model Content

[0006] The purpose of this invention is to provide a multi-sensor fusion-based cardiopulmonary resuscitation (CPR) compression assist device with voice prompts, addressing the shortcomings of existing CPR equipment in compression monitoring, as mentioned in the background section. Most devices cannot accurately and in real-time monitor key parameters such as compression force and speed, making it difficult to ensure that compression operations meet the standards of high-quality CPR.

[0007] To achieve the above objectives, this utility model provides a multi-sensor fusion cardiopulmonary resuscitation (CPR) compression assist device with voice prompts, including a base plate, an inverted U-shaped positioning frame mounted on the top of the base plate, a control chamber mounted on the top of the U-shaped positioning frame, a compression component mounted on the lower part of the control chamber, and a speaker mounted on the outer wall of the control chamber. The patient lies flat inside the U-shaped positioning frame, and the compression component is controlled by the control chamber to perform CPR by cyclically pressing down, while pressure and speed are monitored by several sensors.

[0008] This setup uses a base plate to support the patient, an inverted U-shaped positioning frame to form a stable support structure, a control compartment to integrate the drive and control core, a compression component to perform chest compressions, a speaker to provide voice feedback, and multiple sensors to collaboratively collect pressure and velocity data, thus constructing a complete cardiopulmonary resuscitation assistance system of "support-drive-monitoring-feedback".

[0009] Preferably, a number of downward pressure sensors are installed on the top of the base plate.

[0010] This feature involves installing a pressure sensor on the top of the base plate to directly detect the reaction force transmitted from the patient's chest to the base plate, indirectly reflecting the actual pressure borne by the chest during compression, thus supplementing the monitoring dimensions of the pressure sensor.

[0011] Preferably, one end of the U-shaped positioning frame is rotatably connected to the base plate via a hinge, and the other end of the U-shaped positioning frame is engaged with the base plate via a snap-fit, thereby facilitating the opening and closing of the U-shaped positioning frame.

[0012] This design uses a combination of hinges and snap-fit ​​connections, allowing the U-shaped positioning frame to rotate and open around the base plate, enabling quick placement or removal of patients and simplifying the device's operation.

[0013] Preferably, a servo cylinder is installed inside the control compartment, and a pressure plate is installed at the lower end of the lower output shaft of the servo cylinder, with a soft pad installed at the bottom of the pressure plate.

[0014] This setup uses a servo cylinder as the drive source, which drives the pressure plate to move up and down through the output shaft to achieve the pressing action. The soft pad directly contacts the patient's chest, using its elasticity to cushion and reduce local pressure.

[0015] Preferably, a speed sensor is installed on the outer wall of the lower output shaft of the servo cylinder, and an upper pressure sensor is installed between the bottom of the pressure plate and the top of the soft pad.

[0016] This setting includes a speed sensor mounted on the output shaft of the servo cylinder to monitor the movement rate of the pressing component in real time to calculate the pressing frequency; and an upper pressure sensor clamped between the pressure plate and the soft pad to directly measure the force applied by the pressing component.

[0017] Preferably, a microcontroller is installed on one inner wall of the control chamber, and a control panel is installed on the top of the control chamber. The control panel controls the switching and extension / retraction speed of the servo cylinder, and the microcontroller is used to receive data collected by the sensor, analyze it, and output it through a speaker.

[0018] This configuration uses a microcontroller as the data processing core, receiving signals from various sensors and comparing them with preset thresholds, and outputting voice prompts through a speaker; the control panel allows the operator to manually adjust the servo cylinder parameters, forming a dual control mode of "automatic monitoring + manual intervention".

[0019] Preferably, the U-shaped positioning frame is equipped with lateral positioning components on both sides. The lateral positioning components include threaded rods that are threadedly connected to the U-shaped positioning frame. One end of the threaded rod is equipped with a positioning plate for positioning the patient's sides, and the other end of the threaded rod is equipped with a handle.

[0020] This feature uses a threaded rod that engages with a U-shaped positioning frame. Rotating the handle allows the positioning plate to move laterally, adjusting the distance between the two positioning plates to fit the patient's sides and limiting patient displacement during compression.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: This multi-sensor fusion cardiopulmonary resuscitation (CPR) compression assist device with voice prompts employs a combination structure of a base plate and an inverted U-shaped positioning frame. One end of the U-shaped frame is rotatably connected via a hinge, while the other end is secured with a snap-fit ​​mechanism, allowing for quick opening and closing to place the patient. This solves the problems of complex and time-consuming installation associated with traditional pneumatic / electric resuscitation devices. In actual operation, it minimizes the interruption of chest compressions, buying precious time for resuscitation of patients experiencing cardiac arrest.

[0022] The device integrates a lower pressure sensor, an upper pressure sensor, and a velocity sensor to form a multi-dimensional monitoring system: the lower pressure sensor captures the total pressure on the patient's chest in real time, the upper pressure sensor accurately measures the direct force applied by the compression components, and the velocity sensor simultaneously records the compression frequency and movement rate. The data from these three sensors are analyzed and processed by a microcontroller to ensure that the compression depth and frequency meet international cardiopulmonary resuscitation guidelines, overcoming the shortcomings of traditional devices that rely on single monitoring methods or lack sufficient accuracy.

[0023] The servo cylinders inside the control chamber drive the compression components to complete cyclic compression movements, replacing manual compressions and avoiding problems such as decreased compression force and frequency fluctuations caused by operator fatigue. Simultaneously, the microcontroller outputs real-time voice prompts (such as "too much pressure" or "too slow frequency") through a speaker based on sensor data. This assists the operator in adjusting parameters promptly and provides a unified standard of guidance for collaborative rescue efforts, helping to maintain consistent high-quality compressions.

[0024] The lateral positioning components on both sides of the U-shaped positioning frame adjust the spacing between the positioning plates via threaded rods, accommodating patients of different body types and limiting body displacement, ensuring that the pressure point is always aligned with the lower middle segment of the sternum. The soft pad at the bottom of the pressure plate effectively distributes the pressure, reducing the risk of complications such as rib fractures, making it safer than traditional rigid pressure heads. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the lateral positioning component in this utility model; Figure 4 This is a schematic diagram of the structure of the pressure sensor. The meanings of the labels in the diagram are as follows: 1. Base plate; 11. Lower pressure sensor; 2. U-shaped positioning frame; 21. Hinge; 22. Buckle; 3. Control compartment; 31. Servo cylinder; 32. Pressure plate; 33. Soft pad; 34. Speed ​​sensor; 35. Upper pressure sensor; 36. Microcontroller; 4. Pressing component; 5. Speaker; 6. Control panel; 7. Lateral positioning component; 71. Threaded rod; 72. Handle; 73. Positioning plate. Detailed Implementation

[0026] 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 some embodiments of the present utility model, and not all embodiments. 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.

[0027] This utility model provides a multi-sensor fusion-based cardiopulmonary resuscitation (CPR) compression assist device with voice prompts, such as... Figure 1As shown, the system includes a base plate 1, an inverted U-shaped positioning frame 2 mounted on top of the base plate 1, a control chamber 3 mounted on top of the U-shaped positioning frame 2, a pressing component 4 mounted on the lower part of the control chamber 3, and a speaker 5 mounted on the outer wall of the control chamber 3. The patient lies flat inside the U-shaped positioning frame 2 and performs cardiopulmonary resuscitation by cyclically pressing down on the pressing component 4 through the control chamber 3. Pressure and velocity are monitored by several sensors.

[0028] The patient is supported by a base plate 1, while an inverted U-shaped positioning frame 2 forms a stable support structure. The control compartment 3 integrates the drive and control core, the compression component 4 performs chest compressions, and the speaker 5 provides voice feedback. Multiple sensors collaboratively collect pressure and velocity data, constructing a complete cardiopulmonary resuscitation (CPR) support system encompassing support, drive, monitoring, and feedback. This system integrates mechanical compression, parameter monitoring, and voice prompts, replacing manual chest compressions and solving the problem of inconsistent compression quality in traditional manual methods. Furthermore, the multi-sensor linkage enables comprehensive monitoring of the compression process, providing fundamental hardware support for high-quality CPR.

[0029] In this embodiment, as Figure 1 , Figure 4 As shown, several downward pressure sensors 11 are installed on the top of the base plate 1.

[0030] Several pressure sensors 11 are installed on the top of the base plate 1 to directly detect the reaction force transmitted from the patient's chest to the base plate 1, indirectly reflecting the actual pressure borne by the chest during compression, supplementing the monitoring dimension of the pressure sensor 35. By monitoring the overall force on the chest, the error in judging the compression pressure caused by differences in patient body shape, such as obesity or thinness, is avoided, ensuring that the compression pressure meets the needs of blood circulation without causing chest injury due to excessive pressure.

[0031] Specifically, such as Figure 1 As shown, one end of the U-shaped positioning frame 2 is rotatably connected to the base plate 1 through the hinge 21, and the other end of the U-shaped positioning frame 2 is engaged with the base plate 1 through the buckle 22, so as to facilitate the opening and closing operation of the U-shaped positioning frame 2.

[0032] One end of the U-shaped positioning frame 2 is rotatably connected to the base plate 1 via a hinge 21, and the other end is engaged with the base plate 1 via a snap-fit ​​22, allowing the U-shaped positioning frame 2 to rotate and open around the base plate 1, enabling rapid placement or removal of the patient and simplifying the device's operation. This solves the problems of cumbersome and time-consuming installation of traditional fixed-frame resuscitation equipment, enabling rapid patient positioning in emergency rescue scenarios, reducing the interruption of chest compressions, and buying precious rescue windows for patients with cardiac arrest.

[0033] Furthermore, such as Figure 2As shown, a servo cylinder 31 is installed inside the control chamber 3. A pressure plate 32 is installed at the lower end of the lower output shaft of the servo cylinder 31, and a soft pad 33 is installed at the bottom of the pressure plate 32.

[0034] The control chamber 3 is equipped with a servo cylinder 31, which serves as the drive source. A pressure plate 32 is installed at the lower end of its output shaft. The output shaft drives the pressure plate 32 to move up and down, thus performing the pressing action. A soft pad 33 is installed at the bottom of the pressure plate 32, which directly contacts the patient's chest, using its elasticity to cushion and reduce local pressure. The servo cylinder 31 can precisely control the depth and frequency of the compressions, avoiding fluctuations in the force of manual compressions; the soft pad 33 can distribute the pressure, reducing the risk of complications such as rib fractures, and improving the safety and comfort of the compressions.

[0035] Furthermore, such as Figure 2 As shown, a speed sensor 34 is installed on the outer wall of the lower output shaft of the servo cylinder 31, and an upper pressure sensor 35 is installed between the bottom of the pressure plate 32 and the top of the soft pad 33.

[0036] A speed sensor 34 is installed on the outer wall of the lower output shaft of the servo cylinder 31 to monitor the movement rate of the pressing component 4 in real time to calculate the pressing frequency. An upper pressure sensor 35 is installed between the bottom of the pressure plate 32 and the top of the soft pad 33 to directly measure the force applied by the pressing component 4. The speed sensor 34 and the upper pressure sensor 35 capture the pressing frequency and the direct pressure respectively, and the data are cross-validated to ensure monitoring accuracy. This provides accurate parameter basis for the microcontroller 36 to analyze and generate voice prompts, ensuring that the pressing meets the guideline standard of "100-120 times / minute frequency and 5-6cm depth".

[0037] Furthermore, such as Figure 2 As shown, a microcontroller 36 is installed on one inner wall of the control chamber 3, and a control panel 6 is installed on the top of the control chamber 3. The control panel 6 controls the switching and extension speed operation of the servo cylinder 31. The microcontroller 36 is used to receive data collected by the sensor and output it through the speaker 5 after analysis.

[0038] A microcontroller 36 is installed on one inner wall of the control chamber 3. As the data processing core, the microcontroller 36 receives signals from various sensors and compares them with preset thresholds, outputting voice prompts through the speaker 5. A control panel 6 is installed on the top of the control chamber 3. The control panel 6 allows the operator to manually adjust the parameters of the servo cylinder 31, forming a dual control mode of "automatic monitoring + manual intervention." This enables real-time analysis and feedback of compression parameters, helping the operator adjust the compression strategy promptly. The manual adjustment function of the control panel 6 adapts to individual differences among patients, such as children and adults, improving the device's versatility and flexibility.

[0039] Furthermore, such as Figure 1 , Figure 3 As shown, lateral positioning components 7 are installed on both sides of the U-shaped positioning frame 2. The lateral positioning components 7 include threaded rods 71, which are threadedly connected to the U-shaped positioning frame 2. A positioning plate 73 is installed at one end of the threaded rod 71 for positioning the patient's body on both sides. A handle 72 is installed at the other end of the threaded rod 71.

[0040] Lateral positioning components 7 are installed on both sides of the U-shaped positioning frame 2. Each lateral positioning component 7 includes a threaded rod 71. Through the threaded engagement of the threaded rod 71 with the U-shaped positioning frame 2, rotating the handle 72 at the other end of the threaded rod 71 drives the positioning plate 73 at one end to move laterally, adjusting the distance between the two positioning plates 73 to fit the sides of the patient's body and limiting patient displacement during compression. This ensures that the compression point is always aligned with the lower middle segment of the sternum, avoiding compression position deviation caused by patient positional shifts and guaranteeing the effectiveness of the compression; it also adapts to patients of different body types, expanding the applicability of the device.

[0041] This utility model's multi-sensor fusion cardiopulmonary resuscitation (CPR) compression assist device with voice prompts uses a servo cylinder 31 as a power source. The extension and retraction of the output shaft drives the pressure plate 32 and the soft pad 33 to reciprocate, simulating manual chest compressions and ensuring the stability of compression depth and frequency. The upper pressure sensor 35, lower pressure sensor 11, and speed sensor 34 respectively collect the direct compression force, chest reaction force, and compression rate. A microcontroller 36 fuses and analyzes the data to determine the compression quality in real time. The microcontroller 36 compares the sensor data with preset thresholds, such as a compression depth of 5-6 cm and a frequency of 100-120 compressions per minute, and outputs voice prompts through a speaker 5, forming a closed-loop control of "monitoring-analysis-feedback" to assist the operator in adjusting parameters.

[0042] First, the operator opens the U-shaped positioning frame 2 through the buckle 22, places the patient on the base plate 1, and aligns the chest directly below the compression component 4; then closes the U-shaped positioning frame 2 and fastens the buckle 22 to complete the initial fixation.

[0043] Rotate the handle 72 of the lateral positioning component 7, and push the positioning plate 73 to move to both sides of the patient's body through the threaded rod 71 until it fits the torso, limiting the patient's displacement during the compression process and ensuring that the compression point is aligned with the middle and lower part of the sternum.

[0044] The operator starts the device through the control panel 6 on the top of the control chamber 3, and presets the pressing depth, frequency and other parameters of the servo cylinder 31 according to the patient's age (adult / child) or body size; the microcontroller 36 receives the instructions and stores the threshold standards.

[0045] When the servo cylinder 31 is activated, its lower output shaft drives the pressure plate 32 and the soft pad 33 to move downward. The soft pad 33 contacts the patient's chest and applies pressure, completing one compression action. Then the output shaft retracts, driving the pressure plate 32 to reset, waiting for the next cycle.

[0046] During the compression process, all sensors work synchronously: the upper pressure sensor 35 detects the direct force applied by the pressure plate 32 in real time and transmits it to the microcontroller 36; the lower pressure sensor 11 detects the reaction force transmitted from the patient's chest cavity to the base plate 1 to help determine the force state of the chest cavity; the speed sensor 34 monitors the movement rate of the output shaft of the servo cylinder 31 and calculates the real-time compression frequency.

[0047] The microcontroller 36 analyzes the sensor data: if the pressing depth is insufficient, the speaker 5 outputs "Insufficient pressing depth"; if the frequency is too fast, it prompts "Please slow down"; if the pressure is too high, it prompts "Reduce pressing pressure". The operator can fine-tune the parameters of the servo cylinder 31 through the control panel 6 according to the voice prompts, or manually intervene in the position of the positioning plate 73 to ensure that the pressing quality meets the guide standard.

[0048] After the rescue is completed, the servo cylinder 31 is turned off via the control panel 6, the buckle 22 is opened and the U-shaped positioning frame 2 is flipped to remove the patient; the device automatically records the compression data and completes the reset.

[0049] Finally, it should be noted that the electronic components in the speaker 5, control panel 6, etc. in this embodiment are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components are connected by wires. The specific connection method should refer to the working order between the electrical components in the above working principle to complete the electrical connection. All of these are technologies known in the art.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-sensor fusion cardiopulmonary resuscitation compression assist device with voice prompt function, comprising a base plate (1), characterized in that: An inverted U-shaped positioning frame (2) is installed on the top of the base plate (1). A control chamber (3) is installed on the top of the U-shaped positioning frame (2). A pressing component (4) is installed on the lower part of the control chamber (3). A speaker (5) is installed on the outer wall of the control chamber (3). The patient lies flat inside the U-shaped positioning frame (2). The pressing component (4) is controlled by the control chamber (3) to perform cardiopulmonary resuscitation. Pressure and speed are monitored by several sensors.

2. The multi-sensor fusion cardiopulmonary resuscitation compression assist device with voice prompt function according to claim 1, characterized in that: Several pressure sensors (11) are installed on the top of the base plate (1).

3. The multi-sensor fusion cardiopulmonary resuscitation compression assist device with voice prompt function according to claim 1, characterized in that: One end of the U-shaped positioning frame (2) is rotatably connected to the base plate (1) through a hinge (21), and the other end of the U-shaped positioning frame (2) is engaged with the base plate (1) through a buckle (22) to facilitate the opening and closing of the U-shaped positioning frame (2).

4. The multi-sensor fusion cardiopulmonary resuscitation compression assist device with voice prompt function according to claim 1, characterized in that: The control chamber (3) is equipped with a servo cylinder (31), and a pressure plate (32) is installed at the lower end of the lower output shaft of the servo cylinder (31). A soft pad (33) is installed at the bottom of the pressure plate (32).

5. The multi-sensor fusion cardiopulmonary resuscitation compression assist device with voice prompt function according to claim 4, characterized in that: A speed sensor (34) is installed on the outer wall of the lower output shaft of the servo cylinder (31), and an upper pressure sensor (35) is installed between the bottom of the pressure plate (32) and the top of the pad (33).

6. The multi-sensor fusion cardiopulmonary resuscitation compression assist device with voice prompt function according to claim 1, characterized in that: A microcontroller (36) is installed on one side of the inner wall of the control chamber (3), and a control panel (6) is installed on the top of the control chamber (3). The control panel (6) controls the switching and extension speed operation of the servo cylinder (31). The microcontroller (36) is used to receive data collected by the sensor and output it through the speaker (5) after analysis.

7. The multi-sensor fusion cardiopulmonary resuscitation compression assist device with voice prompt function according to claim 1, characterized in that: Lateral positioning components (7) are installed on both sides of the U-shaped positioning frame (2). The lateral positioning components (7) include threaded rods (71), which are threadedly connected to the U-shaped positioning frame (2). A positioning plate (73) is installed at one end of the threaded rod (71) for positioning the patient's body on both sides. A handle (72) is installed at the other end of the threaded rod (71).

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