阅读说明：本技术 一种cpr装置 (CPR device ) 是由 俞洁 王宁 覃勤朴 纪媛媛 齐猛 陈文劲 于 2021-09-07 设计创作，主要内容包括：本发明涉及一种CPR装置,至少包括用于对患者施压的按压模块、用于检测施压产生的效用的检测模块和用于产生提示以规范施压行为的提示模块。提示模块基于预设程序产生提示,施压者基于所述提示操作按压模块对患者施压,所述检测模块检测所述施压动作以及基于所述施压动作产生的生理指标变化,提示模块基于检测模块的至少两个关联的检测结果和所述按压模块的施压操作改变预设提示。从而根据按压过程中实际检测到的数值调整预设的标准数据,生成新的个性化的标准数据,以个性化针对不同的被救助者生成能够兼顾救助效率和安全保障的提示信息指导救助操作。(The invention relates to a CPR device comprising at least a compression module for applying pressure to a patient, a detection module for detecting the effect of the application of pressure and a prompt module for generating a prompt to regulate the action of the application of pressure. The prompting module generates a prompt based on a preset program, a pressure applicator operates the pressing module to apply pressure to a patient based on the prompt, the detection module detects the pressure application action and physiological index change generated based on the pressure application action, and the prompting module changes the preset prompt based on at least two associated detection results of the detection module and the pressure application operation of the pressing module. Therefore, the preset standard data is adjusted according to the value actually detected in the pressing process, new personalized standard data is generated, and prompt information which can give consideration to rescue efficiency and safety guarantee is generated for different rescued persons in a personalized mode to guide rescue operation.)

1. A CPR device comprising at least a compression module for applying pressure to a patient, a detection module for detecting the effect of the application of pressure, and a prompt module for generating a prompt to specify the action of the application of pressure,

the prompt module generates a prompt based on a preset program,

the presser operates the pressing module to press the patient based on the prompt,

the detection module detects the pressing action and the change of the physiological index generated based on the pressing action,

the prompt module changes a preset prompt based on at least two associated detection results of the detection module and the pressing operation of the pressing module.

2. The apparatus according to claim 1, wherein the detection module includes at least a pressing depth detection means and a pressure detection means, and the operation management section performs correlation analysis of the pressing depth detection data and the pressure detection data at a time when the pressing depth is maximized, and determines the biasing direction based on the correlation analysis.

3. The apparatus according to claim 1 or 2, wherein the operation management section is based on a formula F ═ sin_αF, determining the magnitude of the deviation angle alpha, and controlling the prompt module to generate deviation angle prompt, wherein F is the magnitude of the force actually acting on the compression depth, and F is the pressure measured by the pressure detector.

4. The device according to any one of claims 1 to 3, wherein the detection module further includes a strain detection means (13), and the operation management unit generates the prompt information based on the analysis result of the numerical value of the strain detection means (13) and the numerical value of the compression depth detection at the same time.

5. The device of any of claims 1-4, wherein the control module is capable of interacting with a smart terminal so that the CPR device can establish a data connection with a CPR cloud server via the smart terminal.

6. The device according to any one of claims 1 to 5, wherein when the compression is interrupted, the detection module detects the compression interruption or the compression depth is not in place and sends data to an operation management section which controls the prompt module to change the prompt information based on the data.

7. The device according to any one of claims 1 to 6, wherein the pressing module comprises a guide tube (1) for limiting the direction of force, a pressing part (2) which is arranged in the guide tube (1) and one side of which is in contact with the thorax of the rescued person, a force equalizing part which is connected with the pressing part (2) through a buffer component (3) and is arranged in the guide tube (1), and a force applying block (6) which is connected with the force equalizing part through a shaft rod (5) which is arranged in the center of the force equalizing part and is parallel to the force equalizing part, wherein under the condition that the force applying block (6) is applied by the force applicator, the force applied to the force applying block (6) is flexibly transmitted to the thorax of the rescued person through a first buffer and a second buffer.

8. The device according to any one of claims 1 to 7, wherein the guide tube (1) has a limited longitudinal degree of freedom, and the pressure applying portion (2) and the force equalizing portion are circumferentially connected to the inner wall of the guide tube (1) so as to adjust the applied force in the longitudinal direction to improve the force conversion rate.

9. The device according to any one of claims 1 to 8, wherein the prompting module is provided with a sounding unit (9), the sounding unit (9) is arranged at the center of one side of the pressing portion (2) close to the force equalizing plate (4), the force equalizing plate (4) and the guide pipe (1) form an oscillation space, and the sound emitted by the sounding unit (9) is modulated and amplified by the oscillation space.

10. The device according to any one of claims 1 to 9, wherein the deformation detecting means (13) indicates that the pressure is excessive based on the fact that the distance between the uniform force plate (4) and the pressing portion (2) is smaller than a first threshold value.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a CPR device.

Background

At present, the frequency of sudden cardiac arrest is greatly increased due to the influence of fast pace of life, unhealthy diet and living habits. Sudden cardiac arrest refers to the sudden termination of the blood ejection function of the heart, the pulsation of the aorta and the disappearance of heart sounds, the heart stops delivering blood, and if the heart cannot recover in time, each important organ cannot be supplied with blood and oxygen in time, so that organ failure is caused, and the heart is difficult to recover. Effective cardiopulmonary resuscitation performed in the golden four minutes after cardiac arrest is the most effective treatment method for cardiac arrest, however, the accuracy of mastering the key points of cardiopulmonary resuscitation by the public is not high, and the standardization of actions is difficult, so the success rate of cardiopulmonary resuscitation of the common people is still not high. Therefore, under the condition of emergency, the success rate of rescue can be greatly improved by effective guidance and auxiliary rescue.

The cardiopulmonary resuscitation has the following operation key points: the compression to artificial ventilation ratio was 30:2, and continued for 5 cycles, approximately 2 minutes. Judging whether cardiopulmonary resuscitation is effective, can touch carotid artery pulsation, has systolic pressure above 60mmHg, has pupil greatly reduced, recovers light reflex, lip and nail bed become red by cyanosis, recovers spontaneous respiration, arranges patients, and closely monitors vital signs of the patients. When performing cardiopulmonary resuscitation, it is necessary to pay attention to the fact that the externally-pressed part is not too low so as to avoid damaging internal organs such as the liver, the spleen, the stomach and the like; the pressing force is proper, and the sternum is fractured due to overexertion, so that pneumothorax, hemothorax and pericardial effusion are brought; the pressing pressure is too light, and the formed chest pressure is too small to push blood circulation; the mouth-to-mouth insufflation should not be too large, and the insufflation time should not be too long, so as to avoid acute gastric dilatation. In the process of rescue, the stable pressing frequency and the stable in-place pressing pressure degree need to be maintained, the frequency needs to reach 100 plus 120 times/minute, the rescue is insisted for at least 5 minutes, the rescue needs to be continued insisted under the condition that the rescue is not responded for 5 minutes, the long-term pressing consumes physical strength, the required force is often difficult to reach or the stable pressing frequency is difficult to maintain in the latter half period of the rescue, and therefore the success rate of the rescue is influenced. The standard value of the compression rescue is changed from 3cm in compression depth to 5cm in compression depth at present, and the value is a fixed average value, and people of different ages, different regions and different sexes have different body types and bones, different changes of the composition and toughness of the bones, and different force application sizes required when the same compression depth is generated, so that a corresponding compression prompt needs to be provided according to the actual situation of a rescued person.

In addition, cardiopulmonary resuscitation devices deployed in offices as required by the relevant authorities are not functional, also because rescuers are concerned about taking serious legal consequences.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the applicant has studied a great deal of literature and patents when making the present invention, but the disclosure is not limited thereto and the details and contents thereof are not listed in detail, it is by no means the present invention has these prior art features, but the present invention has all the features of the prior art, and the applicant reserves the right to increase the related prior art in the background.

Disclosure of Invention

In response to the deficiencies of the prior art, the present invention provides a CPR device comprising at least a compression module for applying pressure to a patient, a detection module for detecting the effect of the application of pressure, and a prompt module for generating a prompt to regulate the action of the application of pressure. The prompting module generates a prompt based on a preset program, a user presses the pressing module to press a patient based on the prompt, the detection module detects the pressing action and physiological index change generated based on the pressing action, and the prompting module changes a preset prompt based on at least two associated detection results of the detection module and the pressing operation of the pressing module. The operation management part can analyze the pressing action of the pressing module and the related information of various physiological indexes, judge whether the pressing action is standard or not, and prompt and guide the pressing action which is not standard. The method has great guiding significance for a large number of common people who do not receive professional cardio-pulmonary resuscitation training or practice cardio-pulmonary resuscitation operation, can enhance the treatment confidence of the people, avoids a large number of nonstandard or wrong operations which are caused by tension or urgency and waste precious treatment time and do not produce the treatment effect on the treated people, improves the treatment rate of common people for cardiac arrest and reduces the probability of secondary injury caused by misoperation of common people for treatment. This is very useful today where the probability of cardiac arrest is increasing dramatically.

According to a preferred embodiment, the detection module includes at least a pressing depth detection means and a pressure detection means, and the operation management section performs correlation analysis of the pressing depth detection data and the pressure detection data at a time when the pressing depth is maximized, and determines the biasing direction based on the correlation analysis.

According to a preferred embodiment, the operation management unit is based on the formula F ═ sin_αF, determining the magnitude of the deviation angle alpha, and controlling the prompt module to generate deviation angle prompt, wherein F is the magnitude of the force actually acting on the compression depth, and F is the pressure measured by the pressure detector. The judgment standard of effective treatment can be standardized by analyzing the detection data of the pressing depth detection part and the pressure detection part in a correlation manner, the force application direction of pressure is standardized, and the excessive waste of physical force of a rescuer and the secondary contusion of the rescuer caused by the waste physical force are avoided. Quantitative prompt evaluates the operation normalization of rescuers conducting rescue, so that rescuers with more standard operation can be replaced as soon as possible under the necessary condition, and the waste of precious rescue time due to invalid rescue is avoided. The rescuer can also effectively avoid legal risks caused by non-standard operation of the rescuer.

According to a preferred embodiment, the detection module further includes a deformation detection component, and the operation management unit generates the prompt information based on the analysis result of the deformation detection component value and the compression depth detection value at the same time. The deformation detection component can detect the deformation degree of the pressing module, a buffer piece is arranged inside the pressing module, and the buffer piece generates deformation in different degrees based on the size of the received pressure. And the elasticity of the buffer member is set to be smaller than that of the human thorax so that when the human thorax is compressed to the limit based on the magnitude of the pressure received, the pressure is continuously increased, and the continuously increased pressure can be buffered by the continuous contraction of the buffer member. When the thoracic cage of the human body is compressed to the limit and the data of the compression depth detection part is not changed any more, the numerical value of the deformation detection part can be changed continuously, so that whether the applied pressure is too large for the thoracic cage bone of the current rescued person can be determined according to the change condition of the data of the two detection modules, and the rib of the patient is easily broken and the inner cavity is damaged by increasing the applied pressure. Therefore, the applied pressure is adjusted and reduced when the pressure is too high, and secondary damage to the patient is avoided. The operation management part changes the standard pressing pressure in the preset program based on the detection value of the depth detection module and the detection data of the deformation detection part, so that the proper rescue pressure can be determined based on the body skeleton condition of each rescued person in a personalized manner.

According to a preferred embodiment, the preset programs include at least a first preset program and a second preset program that can be selected based on actual conditions, and the first preset program is: prompting blowing for 1 time after prompting pressing for 15 times; the second preset program is: and 5 times of pressing is prompted and 1 time of blowing is prompted.

According to a preferred embodiment, when a compression is interrupted, the detection module detects that the compression is interrupted or that the compression depth is not in place and sends data to the operation management section, which controls the prompting module to change the prompting information based on the data. Through setting up a plurality of programs of predetermineeing, can adapt to the scene of multiple difference and adjust fast to stabilize the mood of the person of suing and labouring, standardize the action of the person of suing and labouring.

According to a preferred embodiment, the pressing module comprises a guide tube for limiting the direction of force, a pressing part, a force equalizing part and a force applying block, wherein one side of the pressing part is in contact with the thorax of a rescued person and is arranged in the guide tube, one side of the force equalizing part is connected with the pressing part through a buffering assembly and is arranged in the guide tube, the force equalizing part is arranged in the center of the force equalizing part through a shaft rod parallel to the force equalizing part, and the force applying block is connected with the force equalizing part through a shaft rod. The rescue device needs to perform at least 100 times of pressing within 1 minute during emergency rescue, about 1.5 times of pressing is needed in one second on average, and slow release of the force is difficult to achieve in the force application process of pressing, so that sudden change of force is avoided through an external buffer piece, and a rescued person can be sufficiently protected to reduce impact. The force applied by the rescuer is gradually transmitted to the second buffer piece through the first buffer piece and then gradually transmitted to the rescued person through the second buffer piece, so that the force applied to the rescued person is gradually changed instead of suddenly changed, the impact on internal organs in the thorax can be reduced, and the toughness of ribs of the thorax can be adaptively enhanced.

According to a preferred embodiment, the guide tube limits the degree of freedom in the longitudinal direction, and the pressure applying portion and the force equalizing portion are circumferentially connected to the inner wall of the guide tube so that the force applied can be adjusted in the longitudinal direction to improve the force conversion rate. The orientation of the force applied is fully limited through the guidance of the external prompt operation and the mechanical guide pipe, so that the force can be fully kept vertical, the applied force is converted into the change of the pressing depth in the deformation range of the thorax, the pressing depth effect of large offset force can be achieved through small vertical force application, the physical force of a rescuer is saved, the number of times of replacing the rescuer is reduced, and the pause of the rescuing process is reduced.

According to a preferred embodiment, the prompting module is provided with a sound generating unit, the sound generating unit is arranged in the center of one side, close to the force equalizing plate, of the pressing portion, the force equalizing plate and the guide pipe form an oscillating space, and sound generated by the sound generating unit is modulated and amplified through the oscillating space.

According to a preferred embodiment, the deformation detection component arranged on the pressing module prompts that the pressure is too large based on the fact that the distance between the force equalizing plate and the pressing part is smaller than a first threshold value. The uniform force plate and the pressing part are provided with buffering parts, the buffering parts can generate deformation in different degrees based on the pressure of the uniform force plate, the distance between the uniform force plate and the pressing part can be tensioned after the buffering parts generate deformation, and therefore the deformation degree of the buffering parts can be detected by the deformation detection device arranged on the uniform force plate through detecting the distance between the uniform force plate and the pressing part. The deformation degree of the buffer piece can buffer excessive pressure, and the deformation data can be used for the operation management part to be associated with other data for analysis so as to generate personalized prompts.

Drawings

FIG. 1 is a cross-sectional view of a preferred embodiment of the present invention;

fig. 2 is a cross-sectional view of another preferred embodiment provided by the present invention.

List of reference numerals

1: a guide tube; 2: a pressing part; 3: a buffer assembly; 4: a force equalizing plate; 5: a shaft lever; 6: a force application block; 7: a forming member; 8: a touch bar; 9: a sound emitting unit; 10: a through hole; 11: a pressure sensor; 12: thick plate; 13: and a deformation detecting member.

Detailed Description

The following detailed description is made with reference to fig. 1 and 2.

Example 1

The present embodiment provides a CPR device comprising at least a compression module for applying pressure to a patient, a detection module for detecting the effectiveness of the compression, and a prompt module for prompting the degree of pressure application.

Preferably, the detection structure comprises a sensor. The sensor may be, for example, a detection sensor of blood pressure, peripheral blood flow, pulse, blood oxygen saturation, heart rate, or the like. The sensors may be located in the patient's body in the carotid arteries, heart, arms and legs. Preferably, the detection probe may be a head light detection probe or a neck pulse detection patch or the like. In the actual use process, whether the detection structure is used or what detection structure is used can be selected according to the actual application scene.

The rescuer applies chest compression to the rescued person based on the rhythm suggestion of suggestion module, and detection module detects the pressing force degree of rescuer to judge whether it accords with the requirement of pressing, and send control signal to the suggestion module based on the judged result, the suggestion module provides the suggestion for the rescuer based on control signal.

Preferably, the prompting mode is a plurality of prompting modes such as voice prompting, touch prompting, light prompting, color prompting and the like. The rescuer applies pressure to the pressing module according to the prompt of the prompt module to perform cardio-pulmonary resuscitation on the rescued person so as to accelerate the recovery of the myocardial cells damaged by ischemia and hypoxia, increase the myocardial ejection function, increase the cardiac output of the patient, relieve the heart failure degree and promote the recovery of the cardiac function; the cerebral blood flow supply is increased, the cerebral tissue ischemia time is reduced, the ischemia reperfusion time is reduced, the cerebral tissue ischemia reperfusion injury is reduced, the cerebral nerve cells are protected, and the recovery of the brain function of a patient is promoted; the blood lactic acid level is reduced as early as possible, the hypoxia of tissues is relieved, the balance of oxygen metabolism of an organism and the stability of the internal environment are facilitated, and the important significance is realized on the protection of the visceral functions of a patient after the cardio-pulmonary resuscitation. Promoting the recovery of the prognosis of the patient.

According to a preferred embodiment, the prompting module first prompts in a preset program when the rescue starts. The preset program can be selectively set according to the actual number of people to be treated. For example, when two people are treating, the patient can blow air once or twice every 5 times of pressing; when a single person is cured, the patient is pressed for 15 times to blow air once or twice. Too many times of blowing and pressing can affect the success or failure of resuscitation. When the device is carried out by a single person, the fact that multiple pressing is difficult to keep under the frequency of multiple air blowing is guaranteed, and therefore air blowing is carried out once after 15 times of pressing; when a plurality of people carry out the treatment, in order to improve the treatment efficiency, the times of air blowing and pressing can be ensured to be in place, and therefore, air blowing is carried out once after every 5 times of pressing. Preferably, the prompting module can also prompt the rescue operation sequence for the rescuer when starting the rescue, the rescuer can check the operation according to the specific sequence of the rescue, the progress of the rescue sequence needs to be confirmed, the rescuer feeds back confirmation information by a feedback mode such as a button, voice or action after completing one sequence, and the prompting device prompts the next time after receiving corresponding feedback. The prompt information of the prompt device can be repeated for many times based on feedback, so that a rescuer who cannot operate can receive the voice prompt for many times and operate accurately according to the prompt. The voice prompt is set to output a short prompt within ten words at first and then carry out detailed explanation and indication on the short prompt so that a rescuer can quickly grasp important information and operate according to the detailed indication.

According to a preferred embodiment, the prompting module can also adapt to various special conditions to provide prompts for the rescuer. For example, after the previous rescuer carries out a period of rescue according to the rhythm, the physical strength is insufficient, and the rescuer needs to be replaced, wherein the replacement is not carried out according to the rhythm within the replacement time, and the prompt module can trigger the countdown prompt in time when detecting that the rescuer is not pressed in time, so as to prompt the rescuer to complete the replacement within five seconds, and avoid delay. And at the moment, the rhythm prompt still keeps the original rhythm for prompting, so that the rescuers after replacement continue to press rescued persons according to the rhythm prompt again. The detection module can detect the number of times of pressing and the number of times of breathing and blowing so as to monitor and prompt the proportion of the number of times of pressing and blowing. When the rescue is carried out by a single person, the rescue worker stops pressing for blowing after pressing for 15 times according to the prompt rhythm, the prompt device keeps the prompt of the pressing rhythm and counts down from 10 so as to prompt the rescue worker to complete the blowing process within 5 seconds and continue pressing, and the rescue effect is prevented from being influenced by overlong pressing stop time. The arrangement mode is favorable for prompting the rescuer to accelerate the rescue process, provides time reference for the processes of ventilation and suspension of rescue, and avoids the problem that the operation standard of the rescue process is influenced due to panic caused by difficulty in time holding due to tension. The countdown is 10 seconds instead of 5 seconds, so that the method can be applied when the rescue stops for more than 5 seconds, the mind state of the rescuers is kept stable, and the rescuers are prevented from generating overstress or substandard stress degree and the like due to panic and the like after the rescue stops for more than 5 seconds, so that the rescuers are prevented from causing irreparable injuries to the rescuers, such as rib fracture and the like due to overlarge stress.

The detection device can detect physiological values of the rescued person, such as at least one or more of respiration, pulse, neck blood oxygen, brain blood oxygen and oxygen balance, so as to assist in judging the physiological state of the rescued person, send a control signal to the indicating module according to the judgment result of the physiological state and adaptively adjust the prompt mode of the indicating module. For example, when the rescuer is detected to have a pulse during pressing, the rescuer is prompted to press the rescuer in place. When the rescued person recovers spontaneous breathing and blood circulation is recovered, the lips gradually change from purple to bright red, and the rescued person is prompted to succeed in rescue.

The detection module is provided with a sensor capable of detecting the pressing depth, when the rescuer presses the pressing module, the detection module can detect the pressing depth of the rescuer and judge whether the pressing depth is enough to generate enough coronary perfusion pressure so as to generate enough rescuing effect for the rescuer. When the detection module detects that the pressing depth is insufficient, the prompt module is controlled to generate a prompt for aggravating the pressing; when the detection module detects that the compression depth is excessive, the control prompt module generates a prompt for relieving the compression. So as to protect the rescued person and avoid mechanical injury to internal organs caused by overlarge compression depth. The detection module further comprises a pressure detection sensor, and the pressure detection sensor can quantify the pressing force of the rescuer. The detection module compares the detection value of the pressure detection sensor with the value of the pressing depth to determine the numerical relationship between the applied pressure and the pressing depth, and judges whether the force application posture and the pressing part of the rescuer are correct or not and whether the posture or the force application part needs to be replaced or not. Whether the direction of the applied force is vertical or not is detected, whether the applied force can be converted into the pressing depth or not is detected, and if the applied force is large and the converted pressing depth is insufficient, the direction of the applied force may be incorrect. For example, when the applied force is not vertical but inclined toward a certain side, an oblique force is applied to the body of the rescuer, which easily causes contusion to the skin of the body of the patient or the bone of the patient, and has a large physical strength consumption, a short endurance time, a high replacement frequency of the rescuer, an increased intermittent application of pressure, and an adverse effect on the success rate of rescue.

According to a preferred embodiment, at t₀At the moment, the pressure detection sensor detects a first pressure value; press depth detection it detects first depth data, the detection module will be at t₀And analyzing the first pressure value and the first depth data at the moment in a correlation manner, and presetting the pressure F required by pressing to the specified depth of 5cm to be a N, wherein the efficiency is 100 percent at the moment, according to the formula: the actual force applied F ═ sin_αF, F are values measured by the pressure detector, and when the pressing is performed to a predetermined depth, the actual force at that time is compared with F and F, so that the directional offset of the actual force can be calculated. The detection module calculates the magnitude of alpha and prompts a force applicator to adjust and avoid the direction offset. Lifting deviceThe display module can be further set to prompt that the offset is normal within a certain offset range, prompt that the offset is abnormal after exceeding, prompt the rescuer to change the force application angle, enable the force application direction to be parallel to the vertical direction, reduce contusion of skin and bones, and help the rescuer to keep the posture correct and save strength. The pressure detector analyzes a plurality of associated pressure values and depth data, predicts the displacement and strain characteristics in the compression process according to a human thorax finite element model, and determines the average deviation direction of the pressure by researching the relation between acting force and displacement in the chest compression process. Preferably, the operation management part can also monitor the existing health detection data, such as blood oxygen content and the like and the magnitude of coronary artery pressure, and judge the effective compression depth of the patient. Preferably, the device further comprises a pulse detection module which can detect the pulsation of the neck artery during the pressing process to determine whether the pressing is effective. Preferably, the compression depth detection means is implemented as a cardiopulmonary resuscitation compression depth measurement device and method described in prior patent CN 106511056B. The pulse detection unit may be implemented as the pulse detection unit described in conventional patent CN 108024735A. Preferably, the device is further provided with a non-invasive brain blood value detecting means capable of detecting the value of the brain tissue by emitting visible light or invisible light in case of compliance to determine the physical condition of the patient and to instruct the prompting device to change the prompt. And the rescuer applies rescue to the rescued person according to the changed prompt.

According to a preferred embodiment, the device is further provided with a display module, the display module can display the pressing depth and the pressing force degree and also display the pressing depth and the pressing force degree, and a rescuer can select to increase the pressing force degree or decrease the pressing force degree by observing the numerical value display on the display module when pressing, so that the depth and the force of each pressing are kept consistent. After the rescuers are replaced, the pressing force applied by each person is the same according to the comparison of the standard numerical values, and the same pressing effect is generated; without generating different pressing force degrees according to different rescuers. The ratio of the force applied to the rescuer to the compression depth is the force conversion rate, when the direction of the applied pressure and the vertical direction form an included angle, the applied force generates component force in the horizontal direction, and the conversion rate of the pressure is smaller as the included angle between the applied pressure and the vertical direction is increased. The conversion rate of the pressure is greater as the pressure between the direction of the applied pressure and the vertical direction is smaller.

According to a preferred embodiment, the device further comprises a pressing module. The pressing module is provided with a buffer component, so that the soft pressing can be provided for the patient in the pressing process, and the damage to the visceral organs is avoided. The pressing module further has a labor-saving structure, and can help a user to save force and adjust the force application direction when in use, so that the force loss is reduced.

Preferably, the pressing module comprises a guide tube 1 for limiting the direction of force, a pressing part 2 with one side surface contacting with the thorax of the rescued person and circumferentially abutting against the inner side of the guide tube, a force equalizing part 4 with one side connected with the pressing part 2 through a buffer component 3 and circumferentially connected with the inner wall of the guide tube 1, and a force applying block 6 connected with the force equalizing part 4 through a shaft rod 5 arranged in the center of the force equalizing part 4 in parallel with the normal line of the force equalizing part 4. Under the condition of the force application block 6 by a force application person, the force application block 6 transmits force to the force equalizing part 4 through the shaft rod 5, the force equalizing part 4 disperses the force and evenly transmits the force to the pressure applying part 2 after being buffered by the buffering component 3, and the pressure applying part 2 receives the buffered force and secondarily buffers the force based on self deformation and then transmits the force to the rescued person. The side of the pressure applying part 2 close to the rescuer is provided with a forming part 7, and the forming part 7 is made of a flexible material, such as foam or sponge. The flexible material has elasticity and can generate elasticity in the process of pressing; and the flexible material has hygroscopicity, and the skin of a rescued person can be adhered favorably due to the material property and the pore diameter, so that the rescued person can be more stably prevented from slipping during treatment. Preferably, the surface of the shaped portion 7 that is in contact with the bare skin of the patient is substantially at the interface of the fourth rib space and the sternum. The shaping 7 is pear-shaped in plan view and the thinner end of the foam should coincide approximately with the location of the lower end of the sternum when the patient is treated for optimal effect on the patient resuscitation device. The guide tube 1 is set to be uniform in thickness, the degree of freedom of longitudinal orientation is limited, when the guide tube is used, the first end of the guide tube 1 is in contact with the thoracic skin of a patient, the circumferential direction of the pressure applying part 2 is abutted to the inner wall of the guide tube, the guide tube can move up and down along the inner wall of the guide tube under the thrust condition, and the guide tube cannot move in the horizontal direction due to limitation, so that correction force application can be avoided, the force applied by a rescuer to the pressing module is enabled to be dispersed in the left and right directions along the setting direction of the guide tube 1, and the force of the user is fully converted into the pressing depth in the direction of the guide tube 1. The pressure applying part 2 and the force equalizing part 4 are connected through the uniformly distributed buffer assemblies 3, and the pressure applied on the force equalizing part 4 is dispersed through the force equalizing part 4, so that the stress of each buffer assembly 3 is equalized. Preferably, the buffer assembly 3 may be implemented as a structure having elasticity such as a spring, so as to provide a buffer to the rescuer's force. Preferably, the number of the springs is at least 3, and three springs are arranged in a triangular mode to connect the force equalizing plate 4 and the pressure applying part 2, so that stable force bearing is formed. The force equalizing plate 4 is provided with a touch bar 8, and when the force applied to the spring is about 40kg, the extending direction of the parallel guide tube 1 and the other end of the force equalizing plate 4 opposite to the touch bar 8 connected with the force equalizing plate 4 just touch the pressing part 2. Preferably, when the interference lever 8 is in contact with the pressure applying part 2, the pressure applying part 2 is compressed to the minimum due to the external force and the reaction force of the rescuer's body, and at this time, when the force is further increased, since the displacement generated due to the spring not being recompressed is small, it is possible to judge whether the maximum applied pressure is reached based on the difficulty level of the generated displacement, and at this time, to stop further increasing the pressure. Preferably, the pressure application module further comprises a sound production unit 9, and the sound production unit 9 is arranged in the center of one side of the pressure application part 2 away from the rescued person. The sound wave generated by the sound generating unit 9 is amplified due to the superposition of various waves within an appreciable range after oscillating through the oscillation space between the force equalizing plate 4 and the pressing portion 2. The guide tube 1 is provided with a through hole 10, and the amplified sound wave moves to the outside through the through hole 10. Preferably, the rescuer applies force to the force application block 6, and the force application block 6 transmits the force applied by the rescuer to the pressure applying portion 2 through the shaft 5 provided at the center of the force equalizing portion 4. The force equalizing portion 4 is longitudinally movable relative to the inner wall of the guide tube 1 to restrict the applied force to the longitudinal direction so as to be converted into the pressing depth. Preferably, the inner diameter of the guide tube 1 is set to 40-80mm in order to facilitate reduction of the volume of the device.

According to a preferred embodiment, the pressure sensor 11 is centrally arranged on the side of the pressure applying part which is in contact with the patient. The pressure sensor 11 can detect the pressure applied to the patient by the pressure applying portion 2. Preferably, the surface of the pressing part 2, which is connected with the force equalizing plate 4 at the far side, is provided with a hard thick plate 12. A data processing module, an operation management part, a battery module, etc. are provided in the thick plate 12 in order to reduce the volume of the apparatus. The manner of arrangement may be, for example, casting, embedding or snap-fitting.

According to a preferred embodiment, the CPR device of the present embodiment is provided as a reusable device and the pressure applying part 2 is provided as a disposable device, e.g. the pressure applying part 2 is provided to be detachably connected to the side of the thick plate remote from the force applying plate 6, so that the pressure applying part can be replaced. The detachable connection mode can be, for example, a detachable connection method such as clamping or bonding, which facilitates quick replacement. Preferably, the pressure applying portion may be implemented as a relatively low-cost buffer material, such as sponge, latex, gel, or the like. Preferably, the CPR apparatus of the present embodiment can be provided in a structure that facilitates sterilization and reuse, for example, the pressure applying part 2 may be a smooth surface such as a balloon, and the surface can be sterilized by wiping a disinfectant such as alcohol or iodophor during use, so that the apparatus can be used repeatedly.

Preferably, the pressing module is provided with a deformation detecting member 13. The deformation detecting part 13 can detect the deformation value of the pressing module structure during the pressing process. The pressing module is provided with a sensing device, generates an acousto-optic prompt when reaching a set deformation threshold value at every time, and transmits data to the operation management part so as to prompt the pressing force degree at the moment, and the condition that the standard pressing depth can be reached by the rescuers through pressing at every time is guaranteed. Such an arrangement is advantageous in that increasing the force applied to the rescuer in the presence of the cushioning increases the prestress of the cushioning element by further deformation of the cushioning element when the stress increases as the sternum of the rescuer reaches a limit deformation and releases the prestress when the compression is released, avoiding a continuous increase in the degree of compression on the sternum, causing damage to the sternum and internal organs. By comparing the standard compression depths of the two sites, the sternum deformation limit of the rescuer can be determined and a prompt selected to continue to increase the depth. When the actual depth change of the sternum is detected to be not meeting the standard requirement and the depth change between the structures of the pressing module is detected to be meeting the requirement, the sternum is in the limit critical state at this time, and the buffer component 3 receives the excessive pressure generation prestress, and the continuous pressing should be stopped at this time. The operation management section sets a preset pressing depth as a pressing depth at which the deformation value of the cushion member 3 reaches a first threshold value based on the deformation value of the cushion member 3. And when the actual depth change of the sternum is detected to reach the preset standard pressing depth value and the deformation between the buffer components 3 does not reach the threshold value, the sternum of the patient is easy to deform, and the pressure increase should be stopped according to the actual depth change of the sternum. Preferably, the deformation detecting means may be implemented as a distance detecting device or a proximity switch or the like capable of detecting a change in distance. The deformation detection device is arranged on one side, facing the pressure application part, of the force equalizing plate, when the force equalizing plate moves towards the pressure application part under the action of external force and is close to each other based on the collision of the pressure application part and a rescued person, the distance detection device triggers the signal sending module or the proximity switch to be turned on when the distance between the force equalizing plate and the pressure application part is smaller than a first threshold value, and detected distance data or a signal with the distance smaller than the first threshold value is sent to the control device. Preferably, the first threshold value is a distance at which the pressure is 40kg, which is a preset standard pressure. Preferably, the proximity switch controls a circuit externally connected with a light or sound emitting unit. For example, it may be a circuit that displays a fixed pattern on a display screen or emits a sound through a sound emitting unit to generate a prompt when the compression depth and force are in compliance with the specification. When the proximity switch is turned on, a corresponding graph or a device is displayed on the display screen to give out prompt sound so as to prompt the rescuer that the pressing force is in place. Preferably, the proximity switch can be arranged in a circuit of the bulb, when the proximity switch is turned on according with the turn-on condition, the circuit of the bulb is communicated, and the bulb emits light to prompt a rescuer that the pressing force meets the regulation. The rescuer can judge the pressing depth by means of the on-off of the lamplight. For example, the bulb can be a small bulb such as an LED lamp bead.

Example 2

According to another embodiment of the invention, the cardiopulmonary resuscitation (CPR) device of the invention may also be universally deployed at different sites for cardiopulmonary resuscitation of the general public. Such as schools and public service units, etc. The emergency training device can also be arranged at the place where a specific nurse or doctor in a hospital carries out emergency training so as to be convenient for the nurse or doctor to use when carrying out emergency training.

In this embodiment, the cardiopulmonary resuscitation (CPR) device of the present invention comprises, in addition to a compression module for applying pressure to a patient, a detection module for detecting the effectiveness of the compression, and a prompting module for prompting the degree of pressure application, a control module connected to the detection module and the prompting module.

Preferably, through a smart terminal cooperating with a cardiopulmonary resuscitation (CPR) device, a control module of the CPR device can upload data collected by detection sensors of blood pressure, peripheral blood flow, heart rate and the like to a CPR cloud server via the paired smart terminal. Through the intelligent terminal, the control module can perform data communication (for example, with the intelligent terminal or other data processing equipment) through WiFi, Bluetooth and a mobile communication network, and can also interact with wearable equipment arranged on the body and other parts of a patient.

Preferably, the control module is started in response to a binding (such as bluetooth, NFC, etc.) of the smart terminal, and the smart terminal downloads a corresponding APP from the CPR cloud server in response to the binding according to an instruction of the control module, wherein the starting of the APP is premised on a forced user selection in which an object to be rescued is provided as a first screening condition, a rescuer type is provided as a second screening condition, and an environmental condition is provided as a third screening condition. After the forced user selection, the CPR device bound smart terminal generates and uploads to the CPR cloud server a current CPR device user profile related to the subject to be rescued, the rescuer type, and the environmental conditions as a function of the first, second, and third filtering conditions. In response to the reception of the current CPR device user profile, the CPR cloud server generates at least two data acquisition schemes (for example, a first scheme of pure digital and audio and a second scheme of pure digital and audio-video) according to communication conditions (delay, bandwidth and access mode) with the intelligent terminal, and sends the at least two data acquisition schemes and a CPR assistance request to the intelligent terminal which has downloaded the corresponding APP. After the current user (i.e. rescuer) of the intelligent terminal confirms the CPR assistance request, the intelligent terminal selects one of the at least two data acquisition schemes according to the communication condition determined by the APP download rate, and the intelligent terminal applies the selected one to a control module of the CPR device, and the control module sets the detection precision and interval of the detection module according to the data acquisition schemes.

According to the technical scheme of the invention, the intelligent terminal determines the current communication condition through APP downloading, uses the communication condition for data acquisition and transmission during treatment, can set the intelligent equipment carried by a rescuer to upload audio and video data acquired by an audio and video part of the intelligent equipment to the cloud in an audio and video or pure audio mode according to the communication condition, can set the sampling period of a detection module of a CPR device based on the communication condition, and set the period of an upload file according to the sampling period, and can synchronously submit key physiological data of an object to be treated during treatment and key physiological data of the rescuer and the rescuer who are paid by the rescuer to the cloud CPR server in an unthinkable mode The labor behavior is saved and cured.

Preferably, after receiving the confirmation of the CPR assistance request, the CPR cloud server subscribes data to the requesting smart device in a communication mode with the "pressing action" as a time rhythm, and timestamps the data to related data and audio and video files with the "pressing action" as a time rhythm, so as to facilitate future tracing of death time and determination of action normative and compliance behaviors of the rescuer.

Preferably, the cardiopulmonary resuscitation (CPR) device of the present invention is low in cost and simple in structure, but considering that its use requires considerable professional guidance, otherwise it may be counterproductive, the present invention can also introduce a teaching program by combining the intelligent terminal and the control module of the CPR device, and complete corresponding guidance through the intelligent terminal, so as to provide professional treatment operation in office, for example, in time, without adverse effect, and especially can thereby relieve legal responsibility to the corresponding persons involved in the treatment.

After the CPR cloud server receives the confirmation of the CPR auxiliary request, the CPR cloud server provides an audio and video teaching file which accords with corresponding screening conditions to the intelligent terminal according to the screening conditions which force the user to select, and the intelligent terminal determines the time rhythm of the 'pressing action' according to the corresponding screening conditions and plays corresponding action instructions according to the time rhythm. In addition, the intelligent terminal responds to the 'action per compression' determined by the control module of the CPR device to play an audio-video teaching file corresponding to the action. When a rescuer watches the played audio and video teaching files corresponding to actions, the front camera and the microphone of the intelligent terminal are oriented towards the rescuer, so that the behavior of the rescuer can be collected by the rescuer, the audio and video files of related behaviors can be divided by taking 'pressing actions' as time rhythms, and the behavior of the rescuer can be recovered by actions one by one in the future.

Preferably, the teaching mode can also be set to different teaching files designed based on different scenes. For example, when a daily teaching practice mode is performed, the teaching file can be selected as a silent or video-free file, and the CPR cloud server combines the collected behavior data of the rescuer with the teaching program to evaluate the rescue effect of the testee. So that the rescue behavior of the testee can be examined and evaluated in daily teaching, and the applicable scene of the device is wider.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents. The present description contains several inventive concepts, such as "preferably", "according to a preferred embodiment" or "optionally", each indicating that the respective paragraph discloses a separate concept, the applicant reserves the right to submit divisional applications according to each inventive concept.