CN113768773B

CN113768773B - CPR device

Info

Publication number: CN113768773B
Application number: CN202111046500.5A
Authority: CN
Inventors: 俞洁; 王宁; 覃勤朴; 纪媛媛; 齐猛; 陈文劲
Original assignee: Xuanwu Hospital
Current assignee: Xuanwu Hospital
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2023-06-13
Anticipated expiration: 2041-09-07
Also published as: CN113768773A

Abstract

The invention relates to a CPR device, which at least comprises a compression module for compressing a patient, a detection module for detecting the effect of compression and a prompt module for generating prompts to normalize compression behaviors. The prompting module generates a prompt based on a preset program, a pressing person presses the patient based on the prompting operation pressing module, the detecting module detects the pressing action and changes in physiological index based on the pressing action, and the prompting module changes the preset prompt based on at least two associated detecting results of the detecting module and the pressing operation of the pressing module. Therefore, the preset standard data is adjusted according to the numerical value actually detected in the pressing process, new personalized standard data is generated, and prompt information capable of considering the rescue efficiency and the safety guarantee is generated individually for different rescuers to guide the rescue operation.

Description

CPR device

Technical Field

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

Background

At present, the occurrence frequency of cardiac arrest is greatly increased due to the influence of unhealthy diet and lifestyle due to the acceleration of the life rhythm. Sudden cardiac arrest refers to the sudden termination of cardiac ejection, the disappearance of aortic pulsation and heart sounds, and the cessation of blood delivery by the heart, if not recovered in time, the inability of all vital organs to supply blood and oxygen in time, resulting in organ failure and difficulty in recovery. The effective cardiopulmonary resuscitation is the most effective treatment mode for cardiac arrest within the four minutes after cardiac arrest, however, since the key points of the cardiopulmonary resuscitation are not mastered accurately enough by the public, the actions are difficult to standardize, and therefore, the success rate of the cardiopulmonary resuscitation of the general public is still not high. Therefore, under the emergency, the success rate of the rescue can be greatly improved by effectively guiding and assisting the rescue.

The following operation points exist in cardiopulmonary resuscitation: the compression to artificial ventilation ratio was 30:2 for 5 cycles, about 2 minutes. Judging whether cardiopulmonary resuscitation is effective, feeling and carotid artery pulsation, contracting and pressing to above 60mmHg, recovering light reflex by greatly shrinking pupil, recovering lip and nail bed from cyanosis to ruddy, recovering spontaneous breathing, finishing patient, and closely monitoring vital signs of patient. During cardiopulmonary resuscitation, care should be taken that the chest compression area should not be too low so as not to damage viscera such as liver, spleen, stomach, etc.; the pressing force is proper, and too strong can lead to fracture of the sternum and pneumothorax and hydropericardium; the pressing force is too light, and the formed chest pressure is too small to push the blood circulation; the mouth-to-mouth air blowing should not be excessive and the time of the air blowing should not be too long so as to avoid acute gastric distention. In the rescue process, stable pressing frequency and stable pressing force in place are required to be maintained, 100-120 times/min are required to be achieved, the rescue is maintained for at least 5 minutes, the rescue is continued under the condition that no reaction exists in the rescue for 5 minutes, the long-term pressing consumes very much physical power, the required force is difficult to achieve in the second half of the rescue or the stable pressing frequency is difficult to maintain, and therefore the rescue success rate is affected. The standard value of compression rescue is changed from the initial compression depth of 3cm to the current compression depth of 5cm, and the value is a fixed average value, and people of different ages, different regions and different sexes have different body types and bones, the composition and toughness of bones also change differently, and the force required for generating the same compression depth also changes, so that corresponding compression prompts are required to be provided according to the actual conditions of a rescuee.

Furthermore, cardiopulmonary resuscitation devices deployed at office locations as required by the relevant authorities are not functional because the rescuer is also concerned with taking serious legal consequences.

Furthermore, there are differences in one aspect due to understanding to those skilled in the art; on the other hand, since the applicant has studied a lot of documents and patents while making the present invention, the text is not limited to details and contents of all but it is by no means the present invention does not have these prior art features, but the present invention has all the prior art features, and the applicant remains in the background art to which the right of the related prior art is added.

Disclosure of Invention

In view of the shortcomings of the prior art, the present invention provides a CPR device comprising at least a compression module for compressing a patient, a detection module for detecting the effect of the compression and a prompt module for generating a prompt to normalize the compression behavior. The prompting module generates a prompting pressing person to press the patient based on the prompting operation pressing module based on a preset program, the detecting module detects the pressing action and changes of physiological indexes generated based on the pressing action, and the prompting module changes a preset prompting based on at least two associated detecting results of the detecting module and the pressing operation of the pressing module. The operation management part can judge whether the pressing action is standard or not according to the pressing action of the pressing module and the analysis of the related information of each physiological index, and prompt and guide the nonstandard pressing action. The method has great guiding significance for a large number of common people who do not receive specialized cardiopulmonary resuscitation training or practice cardiopulmonary resuscitation operation, can enhance the treatment confidence of the people, avoid a large number of nonstandard and even wrong operations which do not produce a rescue effect due to the fact that valuable rescue time is wasted on the person to be treated caused by tension or emergency, improve the treatment rate of heart arrest of the common people and reduce the probability of secondary injury caused by misoperation of the common people rescue. It is very useful today that the probability of cardiac arrest increases 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 unit performs a correlation analysis on the pressing depth detection data and the pressure detection data at a time point when the pressing depth is maximum, and determines the biasing direction based on the correlation analysis.

According to a preferred embodiment, the operation management section is based on the formula f=sin _α F, determining the magnitude of the deviation angle alpha, and controlling the prompting module to generate a deviation angle prompt, wherein F is the magnitude of force which actually acts on the pressing depth, and F is the magnitude of pressure measured by the pressure detector. The detection data of the pressing depth detection component and the pressure detection component can be subjected to correlation analysis to standardize the judgment standard of effective treatment and the force application direction of pressure, so that the body of a rescuer is avoidedExcessive wasting of force and wasted physical effort creates secondary bruises to the rescuer. The quantitative prompt evaluates the operation normalization of the rescuer who is performing rescue, so that the rescuer with more normal operation can be replaced as soon as necessary, and the waste of valuable rescue time due to ineffective rescue is avoided. The rescuer can also effectively avoid legal risks caused by irregular self operation.

According to a preferred embodiment, the detection module further includes a deformation detection unit, and the operation management unit generates the presentation information based on the analysis result of the deformation detection unit value and the pressing depth detection value at the same time. Deformation detection part can detect the deformation degree of pressing the module, presses the inside bolster that is provided with of module, and the bolster produces the deformation of different degrees based on the size of the pressure that receives. And the elasticity of the buffer member is set to be smaller than the elasticity of the human chest so that when the human chest is compressed to a limit based on the magnitude of the pressure received, the pressure continues to increase, and the pressure which continues to increase can be buffered by the continued contraction of the buffer member. When the chest of a human body is compressed to the limit and the data of the pressing depth detection component are not changed, the numerical value of the deformation detection component can be changed continuously, so that whether the applied pressure is too large for the chest bone of a current rescuer or not can be determined through the change condition of the data of the two detection modules, and at the moment, the applied pressure is increased to cause fracture of the rib of the patient and damage of the inner cavity. Therefore, when the pressure is too high, the applied pressure is adjusted and reduced, and secondary injury to a 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 of each rescuee can be determined based on the physical bone condition of the rescuee in a personalized way.

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, the first preset program being: prompting 1 time of blowing after 15 times of pressing are prompted; the second preset program is as follows: after 5 presses were indicated, 1 blow was indicated.

According to a preferred embodiment, when pressing is interrupted, the detection module detects that the pressing is interrupted or the pressing depth is not in place and transmits data to an operation management section, which controls the presentation module to change the presentation 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 emotion of person of saving oneself, standardize the action of person of saving oneself.

According to a preferred embodiment, the pressing module includes a guide tube for restricting the direction of force, a pressing portion having a side surface in contact with the chest of the rescuee and disposed in the guide tube, a force equalizing portion having a side connected to the pressing portion via a buffer member and disposed in the guide tube, and a force applying block connected to the force equalizing portion via a shaft parallel to the force equalizing portion and disposed at the center of the force equalizing portion, wherein when the force applying block is applied with force by the user, the force applied to the force applying block is flexibly transferred to the chest of the rescuee via the first buffer member and the second buffer member. At least 100 presses are needed in 1 minute during emergency rescue, about 1.5 presses are needed in an average of one second, and slow force application and slow release are difficult to achieve in the force application process of the presses, so that force is prevented from being changed through an external buffer piece, and a rescuee can be fully protected to reduce impact. The force applied by the rescuer is gradually transferred to the second buffer piece after passing through the first buffer piece and then gradually transferred to the rescuee after passing through the second buffer piece, so that the force applied to the rescuee is gradually changed, but not suddenly changed, the impact on viscera in the chest can be reduced, and the toughness of the chest rib is adaptively enhanced.

According to a preferred embodiment, the guide tube limits the degree of freedom in the longitudinal direction, and the pressing portion and the force equalizing portion are connected circumferentially to the inner wall of the guide tube in such a manner that the applied force can be adjusted in the longitudinal direction to increase the force conversion rate. Through the outside suggestion operation and the direction of mechanical stand pipe, the orientation of the applied force of abundant restriction for the strength can fully keep vertical, and the dynamics of applying all turns into the change of pressing the degree of depth in the deformation scope of thorax, so that can reach the pressing the degree of depth effect of great skew application of force through less vertical application of force, save the physical power of person of saving, reduce the number of times of changing the person of saving, with the pause that reduces the process of saving.

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 part, the force equalizing plate and the guide tube form an oscillation space, and sound generated by the sound generating unit is amplified through modulation of the oscillation space.

According to a preferred embodiment, the deformation detecting means provided on the pressing module indicates that the pressure is too high based on the distance between the force equalizing plate and the pressing portion being smaller than a first threshold value. The even power board and the part of exerting pressure are provided with the bolster, and the bolster can produce the deformation of different degree based on the size of the pressure of the even power board that receives, and the bolster can be taut with the distance between even power board and the portion of exerting pressure after producing deformation to set up the deformation detection device on even power board can detect the deformation degree of bolster through detecting the distance between even power board and the portion of exerting pressure. The deformation degree of the buffer piece can provide buffer for excessive pressure, and the deformation data can be used for the operation management part to correlate and analyze with other data to generate personalized prompts.

Drawings

FIG. 1 is a cross-sectional view of a preferred embodiment provided by 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 section; 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-up rod; 9: a sound generating unit; 10: a through hole; 11: a pressure sensor; 12: a thick plate; 13: deformation detection means.

Detailed Description

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

Example 1

The embodiment provides a CPR device, which at least comprises a pressing module for pressing a patient, a detecting module for detecting pressing effect and a prompting module for prompting pressing force.

Preferably, the detection structure comprises a sensor. The sensor may be, for example, a detection sensor for blood pressure, peripheral blood flow, pulse, blood oxygen saturation, heart rate, or the like. The sensors may be located in the carotid artery, heart, arms, legs, etc. of the patient's body. Preferably, the detection probe may be a head light detection probe or a cervical pulse detection patch, etc. In the actual use process, whether the detection structure is used or what kind of 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 prompt of the prompt module, the detection module detects the compression force of the rescuer and judges whether the compression force meets the compression requirement or not, and a control signal is sent to the prompt module based on the judgment result, and the prompt module provides prompt for the rescuer based on the 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 resuscitate the heart and lung of the rescuee so as to accelerate the recovery of the ischemic and anoxic damaged myocardial cells, increase the myocardial ejection function, increase the heart discharge amount of the patient, lighten the heart failure degree and promote the recovery of the heart function; increasing cerebral blood supply, reducing cerebral ischemia time, reducing ischemia reperfusion time, reducing cerebral ischemia reperfusion injury, protecting cerebral nerve cells, and promoting recovery of brain function of patients; the blood lactic acid level is reduced as early as possible, the hypoxia of the tissues is reduced, the balance of the oxygen metabolism of the organism and the stability of the internal environment are facilitated, and the method has important significance for protecting the organ functions of the patient after cardiopulmonary resuscitation. Promoting recovery of patient prognosis.

According to a preferred embodiment, the prompting module first prompts with a preset program at the beginning of the rescue. The preset program can be selected and set according to the actual number of the rescue workers. For example, when two persons are treated, one or two air blows are performed every 5 times of pressing; when a single person is treated, air blowing is carried out once or twice every 15 times of pressing. The number of times of blowing and pressing is too much or too little, which can affect the success or failure of resuscitation. When the air blowing device is operated by a single person, the air blowing device ensures that the air blowing device is difficult to maintain multiple pressing under the frequency of multiple air blowing, so that the air blowing is operated once after 15 times of pressing; when a plurality of people go on, in order to improve the treatment efficiency, therefore guarantee to blow and press the number of times and can put in place, consequently blow once after pressing 5 times each time. Preferably, the prompt module can prompt the rescue operation sequence for the rescuer when the rescue starts, the rescuer can perform operation check according to the specific sequence of the rescue, the sequence progress of the rescue needs to be confirmed, the rescuer feeds back confirmation information through feedback modes such as buttons, voice or actions after completing one sequence, and the prompt device carries out next prompt after receiving corresponding feedback. The prompt information of the prompt device can be repeated for a plurality of times based on feedback, so that a rescuer who cannot operate can receive the voice prompt for a plurality of times and can operate accurately according to the prompt. The voice prompt is set to output short prompts within ten words firstly, and then the short prompts are interpreted and indicated in detail so that a rescuer can quickly grasp important information and operate according to the detailed instructions.

According to a preferred embodiment, the prompt module is also capable of providing prompts to the rescuer in response to a variety of special situations. For example, after a previous rescuer performs a rescue according to the rhythm for a period of time, physical strength is poor, when the rescuer needs to be replaced, the replacement time is not pressed according to the rhythm, and the prompt module can trigger a countdown prompt in time when detecting that the replacement time is not pressed in time, so as to prompt the rescuer to replace in five seconds, and avoid delay. And, the rhythm prompt still keeps the original rhythm to prompt at this moment, so that the rescuer after changing continues to press the rescuee again according to the rhythm prompt. 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 single person is salvaged, the rescuer presses 15 times according to the prompt rhythm, and then stops pressing the in-process of blowing, and when the prompt device keeps the prompt of the pressing rhythm, the prompt device starts counting down from 10 so as to prompt the rescuer to complete the blowing process and continue pressing within 5 seconds, and avoid the overlong pressing stop time from influencing the treatment effect. The setting mode is beneficial to prompting the rescuer to accelerate the rescue process, provides time reference for the ventilation and suspension rescue process, and avoids the problem that the operation standard of the rescue process is affected due to the fact that the time is difficult to grasp due to tension and further panic is caused. The countdown time is 10 seconds instead of 5 seconds, so that the countdown time can be applied when the time is longer than 5 seconds, the mind state of a rescuer is kept stable, and the condition that the rescuer generates excessive pressure or nonstandard pressure force due to the fact that the pressure is too high or the like after stopping the rescue for longer than 5 seconds is avoided, and the rescuer is difficult to recover, for example, rib fracture and the like due to the fact that the pressure is too high is avoided.

The detection device can detect the physiological value of the rescuee, 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 rescuee, and send a control signal to the indication module according to the physiological state judgment result, and adaptively adjust the prompting mode of the indication module. For example, when a pulse is detected by the rescuee during the compression, the rescuer is prompted to press in place. When the rescuee resumes spontaneous breathing and blood circulation is restored, the lips gradually change from mauve to bright red, and the rescuee is prompted to successes.

The sensor capable of detecting the pressing depth is arranged on the detection module, and when the pressing module is pressed by a rescuer, 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 rescue effect for the rescuer. When the detection module detects that the pressing depth is insufficient, the control prompt module generates a prompt for aggravating pressing; when the detection module detects that the pressing depth is excessive, the control prompt module generates a prompt for relieving the pressing. So as to protect the rescuee and avoid mechanical injury to internal organs caused by overlarge pressing 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 relation between the applied pressure and the pressing depth, and judges whether the force application posture and the pressing position of the rescuer are correct or not and whether the force application posture or the pressing position needs to be replaced or not. Whether the direction of the force is vertical or not is detected, whether the applied pressure can be converted into the pressing depth or not is expressed, and if the applied pressure 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 rescuee, which is easy to cause contusion to the skin of the patient or to cause contusion to the bones of the patient, and the physical effort is high, the endurance time is shortened, the replacement frequency of the rescuer is increased, the intermittent increase of the pressure is performed, and the rescue success rate is affected.

According to a preferred embodiment, at t ₀ At the moment, the pressure detection sensor detects a first pressure value; the compression depth detects that it detects the first depth data, the detection module will detect the first depth data at t ₀ The first pressure value and the first depth data at the moment are subjected to correlation analysis, and the preset pressure F required for pressing to the preset depth of 5cm is a N, so that the efficiency is 100%, and the formula is as follows: the force actually applied f=sin _α F and F are values measured by the pressure detector, and when the pressure is applied to a predetermined depth, the actual pressure at that time is compared with F and F, whereby the direction deviation of the actual force can be calculated. The detection module calculates the alpha and prompts the force application person to adjust and avoid the direction offset. The prompting module can also be used for prompting that the offset is normal in a certain offset range, prompting that the offset is abnormal after the offset exceeds the certain offset range, prompting a rescuer to change the force application angle, enabling the force application direction to be parallel to the vertical direction, reducing contusion of skin and bones, and helping the rescuer to keep correct posture and saving strength. The pressure detector analyzes a plurality of related pressure values and depth data, predicts the displacement and strain characteristics in the pressing process according to a human chest finite element model, and determines the average deviation direction of the pressure by researching the relation between acting force and displacement during chest compression. Preferably, the operation management unit is further configured to monitor the present health detection data such as blood oxygen level and the like and the magnitude of coronary artery pressure, and determine the effective compression depth to the patient. Preferably, the device further comprises a pulse detection module capable of detecting the pulse of the cervical artery during the compression process to determine whether the compression is effective. Preferably, the pressing depth detecting means is implemented by an existing dedicated bodyThe device and method for measuring the cardiopulmonary resuscitation pressing depth described in CN 106511056B. The pulse detecting means may be implemented as the pulse detecting means described in the conventional patent CN108024735 a. Preferably, in case of compliance, the device is further provided with a non-invasive brain blood value detection means capable of detecting the value of brain tissue by emitting visible or invisible light to determine the physical condition of the patient and to instruct the prompting means to change the prompting. And then the rescuer applies rescue to the rescuee according to the changed prompt.

According to a preferred embodiment, the device is further provided with a display module, which can display the pressing depth and the pressing force, and also display the pressing depth and the pressing force, and the rescuer can select to increase the pressing force or weaken the pressing force by observing the numerical display on the display module when pressing, so that the pressing depth and the pressing force each time are kept consistent. After the rescuer is replaced, the pressing force applied by each person is the same according to the comparison of standard values, and the same pressing effect is generated; and can not generate different pressing force due to different rescuers. The ratio of the force applied to the rescuer to the compression depth is the conversion of force, and when the direction of the applied pressure has an angle with the vertical direction, the applied force component is generated in the horizontal direction, and as the angle between the applied pressure and the vertical direction increases, the conversion of pressure is smaller. The smaller the pressure between the direction of the applied pressure and the vertical direction, the greater the conversion of the pressure.

According to a preferred embodiment, the device further comprises a pressing module. The pressing module is provided with a buffer assembly, so that the soft pressing can be guaranteed to be provided for a patient in the pressing process, and the damage to viscera is avoided. The pressing module is also provided with a labor-saving structure, so that a user can be helped to save force and adjust the force application direction when using the pressing module, and the loss of force is reduced.

Preferably, the pressing module includes a guide tube 1 for restricting the direction of force, a pressing portion 2 having one side surface in contact with the chest of the rescuee and in circumferential abutment with the inside of the guide tube, a uniform force portion 4 having one side connected to the pressing portion 2 through a buffer member 3 and in circumferential connection with the inner wall of the guide tube 1, and a force application block 6 connected to the uniform force portion 4 through a shaft 5 provided in the center of the uniform force portion 4 parallel to the normal line of the uniform force portion 4. When the force application person applies force to the force application block 6, the force application block 6 transmits force to the force equalization portion 4 through the shaft rod 5, the force equalization portion 4 disperses the force and uniformly transmits the force to the pressing portion 2 after buffering the force by the buffer assembly 3, and the pressing portion 2 receives the buffered force and secondarily buffers the force based on self deformation and transmits the force to the rescuee. The pressure applying portion 2 is provided with a shaping portion 7 on a side close to the rescuee, the shaping portion 7 being made of a flexible material, such as foam or sponge. The flexible material has elasticity and can generate elasticity in the process of pressing; the flexible material has hygroscopicity, and is favorable for bonding the skin of a rescued person due to the material property and the pore diameter, so that the flexible material is more stable and is not easy to slip during treatment. Preferably, the surface of the shaped portion 7 that contacts the exposed skin of the patient is substantially at the interface of the fourth rib interspace and the sternum. The shaped portion 7 is pear-shaped in plan view and the thinner end of the foam portion should substantially coincide with the position of the lower end of the sternum when treating the patient in the patient resuscitation device for optimal effect. The guide tube 1 is uniformly thick and thin, the degree of freedom of longitudinal orientation is limited, when the pressure-applying device is used, the first end of the guide tube 1 is in contact with the chest skin of a patient, the pressure-applying part 2 is in circumferential contact with the inner wall of the guide tube, the pressure-applying part can move up and down along the inner wall of the guide tube under the condition of thrust, and the force applied by a rescuer in the setting direction of the guide tube 1 can be avoided because the limit of the guide tube can not move in the horizontal direction, the force applied by the rescuer to the pressing module is prevented from being dispersed in the left-right direction, and the force of a user is fully converted into the pressing depth in the direction of the guide tube 1. The pressing part 2 and the uniform force part 4 are connected through uniformly distributed buffer assemblies 3, and the pressure applied to the uniform force part 4 is dispersed through the uniform force part 4, so that the stress of each buffer assembly 3 is balanced. Preferably, the buffer assembly 3 may be implemented as a structure having elasticity such as a spring or the like so as to provide a buffer to the force of the rescuer. Preferably, the number of springs is at least 3, and three springs are connected to the force equalizing plate 4 and the pressing portion 2 in a triangular arrangement so as to form a stable force bearing. The contact rod 8 is arranged on the uniform force plate 4, and when the force applied to the spring is about 40kg, the extending direction of the parallel guide tube 1 is opposite to the other end of the contact rod 8, which is connected with the uniform force plate 4, of the uniform force plate 4, and the contact rod just abuts against the pressing part 2. Preferably, when the pressing portion 2 is pressed against the pressing portion 2 by the pressing lever 8, the pressing portion 2 is compressed to the minimum due to the external force and the reaction force of the body of the rescuee, and when the pressing force is increased again, the displacement generated because the spring is not compressed again is small, so that it can be judged whether the maximum pressing force is reached based on the difficulty level of the generated displacement, and the increase of the pressing force is stopped at this time. Preferably, the pressure applying module further includes a sound generating unit 9, and the sound generating unit 9 is disposed at a center of the pressure applying part 2 on a side far from the rescuee. The acoustic wave generated by the sound generating unit 9 is amplified by superposition of various waves in a perceptible range after oscillation of 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 is moved to the outside through the through hole 10. Preferably, the rescuer applies force to the force applying block 6, and the force applying block 6 transmits the force applied by the rescuer to the pressing portion 2 through the shaft 5 provided at the center of the uniform force portion 4. The force equalizing portion 4 is capable of moving longitudinally with respect 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 downsizing of the device.

According to a preferred embodiment, the center of the side of the pressure applying portion that is in contact with the patient is provided with a pressure sensor 11. The pressure sensor 11 is capable of detecting the pressure applied to the patient by the pressure applying portion 2. Preferably, the side of the pressing portion 2 distal to the force-equalizing plate 4 is provided with a hard thick plate 12. A data processing module, an operation management section, a battery module, and the like are provided in the thick plate 12 in order to reduce the device volume. The 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 pressing part 2 is provided as a disposable device, for example, the pressing part 2 is provided as a detachable connection with the side of the thick plate remote from the force application plate 6, so that replacement of the pressing part is possible. The detachable connection mode can be a detachable connection method which is convenient for quick replacement, such as clamping connection or bonding connection. Preferably, the pressing portion may be implemented as a low-cost cushioning material, such as a sponge, latex, gel, or the like. Preferably, the CPR device of the present embodiment can be configured to be used repeatedly for sterilization, and the pressing portion 2 can be a smooth surface such as an air bag, for example, and the surface can be sterilized by wiping a sterilizing liquid such as alcohol or iodophor during use, so that the device can be used repeatedly for sterilization.

Preferably, the pressing module is provided with a deformation detecting member 13. The deformation detecting member 13 is capable of detecting a deformation value of the pressing module structure in the pressing process. The pressing module is provided with a sensing device, an acousto-optic prompt is generated when a set deformation threshold value is reached each time, and data are transmitted to the operation management part to prompt the pressing force at the moment, so that the pressing depth of a rescuer can be reached each time. Such an arrangement is advantageous in that increasing the force applied to the rescuee in a cushioned manner can increase the prestress of the cushioning assembly by further deformation of the cushioning assembly when the rescuee's sternum reaches a limit deformation and the stress increases, and release the prestress when the compression is released, avoiding continuous increases in compression force on the sternum and damage to the sternum and viscera. By comparing the standard compression depths of the two parts, the sternum deformation limit of the rescuer can be determined, and whether the depth is further increased or not is selected to prompt. When it is detected that the actual depth change of the sternum does not meet the standard requirement, and the depth change between the structures of the pressing module meets the requirement, it is indicated that the sternum is in a limit critical state at this time, and the buffer component 3 receives excessive pressure to generate prestress, at this time, the continuous pressing should be stopped. The operation management section sets a preset pressing depth to a pressing depth at which the deformation value of the cushion member 3 reaches the first threshold value, based on the deformation value of the cushion member 3. 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 indicated to be easy to deform, and the pressure increase is 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 of the uniform force plate facing the pressing part, when the uniform force plate moves towards the pressing part under the action of external force and approaches to each other based on the interference of the pressing part and a rescuee, the distance detection device triggers the signal transmission module or the proximity switch to be opened when the distance between the uniform force plate and the pressing part is smaller than a first threshold value, and the detected distance data or a signal with the distance smaller than the first threshold value is transmitted to the control device. Preferably, the first threshold is the distance at which the pressure is 40kg of the preset standard pressure. Preferably, the proximity switch controls a circuit externally connected with a light emitting or sound generating unit. For example, a circuit for displaying a fixed pattern on a display screen or making a sound by a sound making unit may be used to generate a prompt when the pressing depth and the force meet the regulations. When the proximity switch is turned on, a corresponding graph or device is displayed on the display screen to give out a prompt tone so as to prompt the rescuer to press in place. Preferably, the proximity switch can also be arranged in a circuit of the bulb, when the proximity switch is turned on according to the opening 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 then judge the depth of the press by means of the on/off of the light. For example, the bulb may be a small bulb such as an LED bulb.

Example 2

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

In this embodiment, the cardiopulmonary resuscitation (CPR) device of the present invention is provided with a control module connected to the detection module and the prompting module, in addition to the compression module for pressurizing the patient, the detection module for detecting the compression utility, and the prompting module for prompting the pressurizing force.

Preferably, the control module of the cardiopulmonary resuscitation (CPR) device is capable of uploading data acquired by detection sensors of blood pressure, peripheral blood flow, heart rate and the like to a CPR cloud server via a paired smart terminal through the smart terminal cooperating with the CPR device. Through the intelligent terminal, the control module can perform data communication (such as with the intelligent terminal or other data processing equipment) through WiFi, bluetooth and mobile communication networks, and can also interact with wearable equipment arranged on the body of a patient and the like.

Preferably, the control module is started in response to a binding (such as bluetooth, NFC, etc.) of the intelligent terminal, and the intelligent terminal downloads the 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 based on a forced user selection manner, in which a first screening condition of the to-be-treated object, a second screening condition of the rescuer type, and a third screening condition of the environmental condition are provided. After forcing the user to select, the CPR device-bound intelligent terminal generates and uploads a current CPR device user profile relating to the person's rescue subject, the rescuer type, and the environmental conditions to the CPR cloud server in accordance with the first, second, and third screening conditions. In response to receipt of the current CPR device user profile, the CPR cloud server generates at least two data acquisition schemes (e.g., scheme one: pure digital and audio and scheme two: pure digital and audio-video) according to communication conditions (delay, bandwidth and access mode) with the intelligent terminal, and transmits the at least two data acquisition schemes together with CPR assistance requests to the intelligent terminal that 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, which sets the detection accuracy and interval of the detection module according to the data acquisition scheme.

According to the technical scheme, the intelligent terminal determines the current communication condition through APP downloading and uses the communication condition for data acquisition and transmission during rescue, meanwhile, the intelligent device carried by the rescuer can upload audio and video data acquired by the audio and video part of the intelligent device to the cloud according to the communication condition or the pure audio mode, the intelligent device can set the sampling period of the detection module of the CPR device based on the communication condition and set the period of uploading files according to the sampling period, so that key physiological data of a user during rescue and the rescue labor behaviors of the user during rescue can be synchronously submitted to the CPR server in an untouchable mode.

Preferably, after receiving the confirmation of the CPR assistance request, the CPR cloud server subscribes data to the requesting intelligent device in a communication manner with the time rhythm of "pressing action", and marks the data in a time stamp to the related data and audio/video file with the time rhythm of "pressing action", so as to be convenient for tracing the death time in the future and determining the action normalization and compliance of the rescue personnel.

Preferably, the cardiopulmonary resuscitation (CPR) device of the present invention is low in cost and simple in structure, but in consideration of the fact that the use thereof requires considerable professional guidance, which may be otherwise counterproductive, the present invention can also introduce teaching programs by combining the intelligent terminal with the control module of the CPR device, and complete corresponding guidance via the intelligent terminal, so as to provide professional rescue operation in time in, for example, an office location, without having opposite effects, and in particular, can thereby relieve legal responsibility to personnel involved in corresponding rescue.

After the CPR cloud server receives the confirmation of the CPR auxiliary request, the CPR cloud server provides the audio and video teaching files conforming to the corresponding screening conditions for the intelligent terminal according to the screening conditions selected by the forcing user, and the intelligent terminal determines the time rhythm of the pressing action according to the corresponding screening conditions and plays the corresponding action indication according to the time rhythm. In addition, the intelligent terminal plays an audio-video teaching file of the corresponding action in response to the 'each pressing action' determined by the control module of the CPR device. When a rescuer watches the played audio and video teaching files of the corresponding actions, the front-facing camera and the microphone of the intelligent terminal are oriented towards the rescuer, so that the intelligent terminal is beneficial to collecting the actions of the rescuer and dividing the audio and video files of the related actions by taking the pressing action as the time rhythm, and the actions of the rescuer can be restored one by one in the future.

Preferably, the teaching mode may also be set to different teaching files designed based on different scenes. For example, when the daily teaching exercise mode is performed, the teaching file can be selected to be a file with no sound or no video, and the CPR cloud server evaluates the rescue effect of the subject by combining the collected behavior data of the rescuer with the teaching program. So as to check and evaluate the rescue behavior of the subject in daily teaching, and lead the applicable scene of the device to be wider.

It should be noted that the above-described embodiments are exemplary, and that a person skilled in the art, in light of the present disclosure, may devise various solutions that fall within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present description and drawings are illustrative and not limiting to the claims. The scope of the invention is defined by the claims and their equivalents. The description of the invention encompasses multiple inventive concepts, such as "preferably," "according to a preferred embodiment," or "optionally," all means that the corresponding paragraph discloses a separate concept, and that the applicant reserves the right to filed a divisional application according to each inventive concept.

Claims

1. A CPR device comprising at least a compression module for compressing a patient, a detection module for detecting the effect of the compression and a prompt module for generating a prompt to normalize the compression behavior, characterized in that,

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

the presser presses the patient based on the prompt operation pressing module,

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

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 pressing module comprises a guide tube (1) used for limiting the direction of force, a pressing part (2) with one side contacted with the chest of a rescuee and arranged in the guide tube (1), a force balancing part with one side connected with the pressing part (2) through a buffer component (3) and arranged in the guide tube (1), and a force application block (6) connected with the force balancing part through a shaft lever (5) parallel to the force balancing part and found to be arranged in the center of the force balancing part, wherein when the force application block (6) is applied with force by a force application person, the force applied to the force application block (6) is flexibly transferred to the chest of the rescuee after being buffered by a first buffer and a second buffer;

the guide tube (1) limits the longitudinal freedom degree, and the pressing part (2) and the force balancing part are circumferentially connected with the inner wall of the guide tube (1) in a manner that the applied force can be adjusted to be longitudinal so as to improve the force conversion rate;

the detection module at least comprises a pressing depth detection part and a pressure detection part, wherein an operation management part carries out association analysis on the pressing depth detection data and the pressure detection data at the moment of maximum pressing depth, and determines a force application offset direction based on the association analysis; the operation management part determines the magnitude of the offset angle alpha based on the trigonometric function relation between the magnitude F of the force which acts on the pressing depth and the magnitude F of the pressure measured by the pressure detector, and controls the prompt module to generate an offset angle prompt;

the detection module further comprises a deformation detection component (13) comprising a distance detection device or a proximity switch for measuring a distance;

the deformation detection component is arranged on one side of the uniform force plate, which faces the pressing part, and when the uniform force plate moves towards the pressing part under the action of external force and approaches to each other based on the interference of the pressing part and a rescuee, the distance detection device triggers the signal transmission module or the proximity switch to be opened when the distance between the uniform force plate and the pressing part is smaller than a first threshold value, and transmits detected distance data or a signal with the distance smaller than the first threshold value to the control device;

the operation management part generates prompt information based on analysis results of the numerical value of the deformation detection part (13) and the pressing depth detection numerical value at the same moment;

when the actual depth change of the sternum is detected not to reach the standard pressing depth, and the deformation value of the buffer component in the pressing module reaches a first threshold value, prompting to stop continuing pressing; when the actual depth change of the sternum is detected to reach a preset standard pressing depth value and the deformation value of the buffer component does not reach a first threshold value, prompting stopping pressing continuously according to the actual depth change of the sternum.

2. The device of claim 1, wherein the control module is capable of interacting with a smart terminal such that the CPR device is capable of establishing a data connection with a CPR cloud server via the smart terminal.

3. The apparatus according to claim 1, wherein when pressing is interrupted, the detection module detects that the pressing is interrupted or the pressing depth is not in place and transmits data to an operation management section that controls the presentation module to change the presentation information based on the data.

4. The device according to claim 1, characterized in that the prompt module has a sound generating unit (9), the sound generating unit (9) is disposed at the center of one side of the pressing part (2) close to the force equalizing plate (4), the force equalizing plate (4) and the guide tube (1) form an oscillation space, and sound generated by the sound generating unit (9) is amplified through the oscillation space modulation.

5. Device according to claim 4, characterized in that the deformation detection means (13) are adapted to indicate an excessive pressure based on the distance between the pressure equalization plate (4) and the pressure application portion (2) being smaller than a first threshold value.