CN211375985U

CN211375985U - Cardiopulmonary resuscitation dummy

Info

Publication number: CN211375985U
Application number: CN202020025087.9U
Authority: CN
Inventors: 孔伟方; 章军辉; 徐海山; 俞斌
Original assignee: Suzhou Shangling Medical Technology Co ltd
Current assignee: Suzhou Shangling Medical Technology Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-08-28
Anticipated expiration: 2030-01-07

Abstract

The utility model discloses a cardiopulmonary resuscitation dummy, it includes dummy body and sets up the elastic component who is used for simulating thorax elasticity function in dummy body thorax, one side of elastic component is provided with laser displacement sensor, laser displacement sensor fixes on the inside back supporting part of dummy body, the laser direct injection of laser displacement sensor transmission dummy body sternum presses the center in district. The utility model discloses a cardiopulmonary resuscitation dummy can accurate measurement simulation cardiopulmonary resuscitation in-process press frequency, degree of depth and be detained through laser displacement sensor, through non-contact's laser displacement sensor, has improved dummy's life-span and detection precision greatly. And the installation in the inside of anthropomorphic dummy can be adjusted and set up in a flexible way, need not fixed mounted position.

Description

Cardiopulmonary resuscitation dummy

Technical Field

The utility model relates to a cardiopulmonary resuscitation equipment technical field especially relates to a cardiopulmonary resuscitation anthropomorphic dummy.

Background

In the cardio-pulmonary resuscitation first aid training, the chest compression operation and the AED defibrillation operation are applied to a training simulator. The training simulator is key equipment for training the cardio-pulmonary resuscitation, can detect information of the cardio-pulmonary resuscitation operation after a sensor is arranged in the training simulator so as to evaluate whether the operation meets the requirements, and directly determines the training evaluation detail degree of the cardio-pulmonary resuscitation operation and the training feedback information detail degree of a trainer by the aid of the sensor function of the simulator. Generally, the more comprehensive the human simulator functions, the more effective the feedback and the guidance of the trainee to practice.

At present, the most common dummy on the market has a chest spring at the position of the inner sternum to simulate the elastic force of the chest, and when the dummy is pressed and applied to the inner sternum, the spring is deformed to generate the elastic force to simulate the force generated by the subsidence of the chest. In order to measure the chest cavity sinking depth of a dummy, a mechanical slide-card type photoelectric coding displacement sensor is arranged on the dummy sternum on the market. When chest compressions are performed on the simulated sternum, the amount of displacement change can be measured, and the three chest compression parameters of the frequency, depth and compression retention of detected compressions can be calculated. The mechanical type travel card can move in the sliding groove, a compression spring is arranged between the travel card and the sternum, and when the mechanical type travel card is pressed, the tail end of the travel card is propped against the back plate at the lower end, so that relative displacement is generated between the travel card and the photoelectric encoder; the upstream card is provided with a grid in the displacement direction, the movement of the grid enables the photoelectric encoder to generate square wave intermittent signals, and the product of the square wave intermittent signals and the grid distance is the displacement variation quantity by counting the number of the square wave signals. However, the greatest defect of the mechanical slide-card type photoelectric coding displacement sensor is the service life limitation of the mechanical slide groove, and mechanical damage is easy to generate after multiple times of pressing. Therefore, a novel cardiopulmonary resuscitation simulator needs to be developed to improve the detection of parameters such as the compression depth and the compression frequency of the cardiopulmonary resuscitation simulator during the compression process.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model is to overcome the above-mentioned not enough that current cardiopulmonary resuscitation dummy exists, and then provide a cardiopulmonary resuscitation dummy, it has more accurate pressing depth detection, longer life.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a cardiopulmonary resuscitation dummy, its includes dummy body and sets up the elastic component who is used for simulating thorax elasticity function in dummy body thorax, one side of elastic component is provided with laser displacement sensor, laser displacement sensor fixes on dummy body inside back supporting part, the laser direct injection of laser displacement sensor transmission dummy body sternum presses the center of nip.

Preferably, the laser displacement sensor is fixed on the chest back support part of the dummy body through an L-shaped support, the bottom straight part of the L-shaped support is fixed on the back support part of the dummy body from the inside of the chest, and the laser displacement sensor is fixed on one side of the vertical plate surface of the L-shaped support.

Preferably, a circular center hole and an arc waist hole with the circular center hole as a center are formed in one side of a vertical plate surface of the L-shaped support, a swing plate is attached to one side of the vertical plate surface, which is used for mounting the laser displacement sensor, one end of the swing plate is hinged to the circular center hole in a fastening mode, the other end of the swing plate is mounted in the arc waist hole in a fastening mode, the swing plate is suitable for swinging within a stroke of the arc waist hole with the circular center hole as the center, the laser displacement sensor is fixed on the swing plate or clamped between the swing plate and a vertical plate surface of the L-shaped support, and a laser emission direction of the laser displacement sensor is suitable for being adjusted to point to the center of a sternum cardiopulmonary resuscitation pressing area of the dummy body along with the swinging of the swing plate.

Preferably, the laser displacement sensor is electrically connected with a battery module in the dummy body to obtain working electric energy, and the battery module is a single battery or a battery pack.

Preferably, an electrocardio simulation system is arranged in the human simulator body and is connected with an electrocardio electrode plate arranged on the body surface of the human simulator body through a lead wire so as to send a simulated electrocardiosignal to the electrocardio electrode plate.

Preferably, the electrocardio-electrode plates comprise two defibrillation electrocardio-electrode plates for simulating defibrillation heart rate electrocardiosignals and three conventional electrocardio-electrode plates for simulating normal electrocardiosignals.

Preferably, the electrocardio simulation system is connected with the two defibrillation electrocardio electrode plates through an electrocardio two-lead wire; the electrocardio simulation system is connected with the three conventional electrocardio electrode plates through an electrocardio three-lead line.

Preferably, the electrocardiogram simulation system is electrically connected with the battery module to obtain working electric energy.

Preferably, a dummy central processor is arranged in the dummy body, and the laser displacement sensor, the battery module and the electrocardio simulation system are all connected with and controlled by the dummy central processor.

Preferably, the central processor of the dummy is further connected with a memory and a power management module, so as to be respectively used for storing parameter information of the cardiopulmonary resuscitation process and managing power supply electric energy.

The utility model has the advantages that:

the cardiopulmonary resuscitation simulator of the utility model can accurately measure the pressing frequency, depth and detention in the process of simulating cardiopulmonary resuscitation through the laser displacement sensor, and can simulate and monitor the electrocardio of the simulator and the defibrillation of the simulator; the service life and the detection precision of the dummy are greatly improved through the non-contact laser displacement sensor. The device can be flexibly adjusted and arranged in the inside of the dummy, does not need a fixed installation position, is suitable for most simple dummy types, has unlimited structural form, size and model size of the dummy body, ensures the measurement precision of the pressing depth, and enables the dummy to become an object capable of operating and training the ECG monitor and an object for operating and training the AED or the AED trainer or the defibrillator.

Drawings

In order that the present invention may be more readily and clearly understood, reference is now made to the following detailed description of the invention taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic side view of the cardiopulmonary resuscitation simulator of the present invention;

FIG. 2 is a schematic top view of the cardiopulmonary resuscitation simulator of the present invention;

fig. 3 is a schematic view of the connection structure of the laser displacement sensor, the central processor of the dummy (including the ecg simulation system), and the battery module of the present invention;

fig. 4 is a schematic front view of an assembly structure of the laser displacement sensor and the L-shaped support according to the present invention;

fig. 5 is a schematic side view of the assembly structure of the laser displacement sensor and the L-shaped support according to the present invention;

fig. 6 is a schematic block diagram of the cardiopulmonary resuscitation simulator of the present invention.

The reference numbers in the figures denote:

1-simulating a human body; 2-an elastic component; 3-a laser displacement sensor; 4-a back support; 5-L-shaped support; 51-straight portion; 52-erecting the board surface; 53-circular central hole; 54-arc waist hole; 55-a swinging plate; 6-a battery module; 7-an electrocardiogram simulation system; 71. 72-defibrillation electrocardioelectrodes; 73. 74, 75-conventional electrocardio electrode slice; 8-a simulated human central processor; 9-a calibration interface; 10-system switch.

Detailed Description

Referring to fig. 1-3 and fig. 6, a cardiopulmonary resuscitation dummy includes a dummy body 1 and an elastic component 2 arranged in a chest cavity of the dummy for simulating the elastic function of the chest cavity, the structure of the elastic component 2 is not limited, and the elastic component may be of any structure such as a spring type or an air pressure type, as long as the elastic change of the chest cavity for simulating cardiopulmonary resuscitation can be realized; one side of elastic component 2 is provided with laser displacement sensor 3, laser displacement sensor 3 is fixed on the inside back supporting part 4 of anthropomorphic dummy body, back supporting part 4 is preferred to be set up in the inboard backup pad of anthropomorphic dummy body thorax, and this backup pad is laminated with the back of anthropomorphic dummy body, the laser direct injection of laser displacement sensor 3 transmission the center of anthropomorphic dummy body sternum according to the nip. Because the laser displacement sensor 3 is in non-contact type for measuring the sternum compression depth, the problems of short service life and low precision caused by inevitable mechanical abrasion when a vernier caliper or other mechanical structures are adopted for measuring the compression depth in the prior art can be effectively solved, and the laser displacement sensor can effectively record the change of the whole simulation cardiopulmonary resuscitation process while measuring the compression depth, so as to calculate the compression frequency, the compression depth and the compression detention of the simulation cardiopulmonary resuscitation with high precision.

The laser displacement sensor can be mounted in multiple forms, in the embodiment, the laser displacement sensor 3 is fixed on the chest back support part 4 of the dummy body through an L-shaped support 5, the bottom straight portion 51 of the L-shaped support 5 is fixed to the back support 4 of the dummy body from the inside of the chest, the laser displacement sensor 3 is fixed on one side of the vertical plate surface 52 of the L-shaped support 5, and emits laser to the center of the simulated pressing area, of course, in order to make the light emitted from the laser displacement sensor to reach the center of the pressing area (where the center is not an absolute center, which is an ideal and may deviate from the center in some way during pressing, but the measurement error is within an allowable range) or a position close to the center, the structure of the top of the elastic component contacting with the thorax can be adapted to leave the light path free.

In this embodiment, a circular center hole 53 and an arc waist hole 54 with the circular center hole 53 as a center are disposed on one side of the vertical plate surface 52 of the L-shaped support 5, a swing plate 55 is attached to one side of the vertical plate surface 52 for mounting the laser displacement sensor 3, one end of the swing plate is hinged to the circular center hole 53 in a fastening manner, the other end of the swing plate 55 is mounted in the arc waist hole 54 in a fastening manner, the swing plate is adapted to swing within a stroke of the arc waist hole 54 with the circular center hole 53 as a center, the laser displacement sensor 3 is fixed on the swing plate 55 or is clamped between the swing plate 55 and the vertical plate surface 52 of the L-shaped support 5, a laser emitting direction of the laser displacement sensor 3 is adapted to be adjusted to point to the center of the cardiopulmonary resuscitation pressing area of the dummy body along with the swing of the swing plate 55, so as to adjust the emitting angle of the laser sensor, i.e. the angle of the laser direction can be adjusted to shoot to the central position of the pressing area, see fig. 4-5.

In this embodiment, the laser displacement sensor 3 is electrically connected to the battery module 6 inside the dummy body to obtain working electric energy, and the battery module is a single battery or a battery pack, such as a dry battery, a storage battery, a lithium battery, and the like, as long as the battery module can provide electric energy, and can also supply power in the form of an external power supply.

In this embodiment, an electrocardiogram simulation system 7 is provided in the human simulator body, and the electrocardiogram simulation system 7 is connected to an electrocardiogram electrode plate provided on the body surface of the human simulator body through a lead wire, so as to send a simulated electrocardiogram signal to the electrocardiogram electrode plate. Referring to fig. 2-3, the electrocardio-electrode pads include two defibrillation electrocardio-

electrodes

71, 72 for simulating defibrillation heart rate electrocardiosignals and three conventional electrocardio-

electrode pads

73, 74, 75 for simulating normal electrocardiosignals. The electrocardiographic simulation system 7 of this embodiment is connected to the two defibrillation

electrocardiographic electrode pads

71 and 72 through an electrocardiographic two-lead cable; the electrocardio simulation system 7 is connected with the three conventional

electrocardio electrode plates

73, 74 and 75 through an electrocardio three-lead wire.

The electrocardiograph simulation system 7 of the present embodiment is also electrically connected to the battery module 6 to obtain operating power.

In order to improve the integration level and the function of a central control system of the anthropomorphic dummy, a central processor 8 of the anthropomorphic dummy is arranged in the anthropomorphic dummy body, and the laser displacement sensor 3, the battery module 6 and the electrocardio simulation system 7 are all connected with the central processor 8 of the anthropomorphic dummy and are controlled by the central processor 8 of the anthropomorphic dummy; the central processor 8 of the dummy is also connected with a memory 81 and a power management 82 module for respectively storing parameter information of the cardiopulmonary resuscitation process and managing power supply electric energy.

The laser sensor of the embodiment emits laser, when the laser meets an obstacle (a simulated human chest pressing area), the distance between the sensor and a laser point on the obstacle can be measured, the laser sensor is powered by the simulated human central processor and the battery module, and the measured distance electric signal is transmitted to the simulated human central processor; the swing plate of this embodiment accessible screw, bolt or other fastening member install in circular centre bore and arc waist downthehole to conveniently adjust laser displacement sensor's laser emission direction when the installation, and then be convenient for adjust it to laser shooting press down the central point and put. The simulator central processor receives the displacement and the pressing parameters measured by the laser displacement sensor, calculates and processes the displacement and the pressing parameters, controls the electrocardio simulation system to transmit signals of conventional heart rate and defibrillation heart rate to each electrocardio electrode plate according to the pressing condition and the simulation condition to carry out electrocardio simulation, and manages the power supply and work of the power supply module. After the real-time distance of the laser displacement sensor is obtained, the compression frequency, the compression depth and the compression retention condition of chest compression are obtained through calculation processing and background analysis is carried out, as for the working principle of a central processor of a human simulator, the hardware configuration of the existing human simulator system basically has functions, and an STM32 series chip can be selected as the central processor chip of the human simulator; the electrocardio simulation system can generate electrocardio waveform signals with different types and characteristics, and the electrocardio waveforms can be changed in real time according to three parameters (compression depth, frequency and compression retention) of chest compression; the power management module 82 can perform power switch, electric quantity management, prompt and the like according to the execution command of the simulator central processor; in addition, the central processor of the anthropomorphic dummy can be calibrated according to the received pressing signal, namely, the electric signal output by the laser displacement sensor and the pressing depth are corresponded, so that the pressing depth can be accurately calculated through calibration under the condition that the laser displacement sensor adopts different installation modes, and the detection precision of the pressing depth is improved.

The electrocardiogram simulation system of the present embodiment is connected to the conductive contacts of the defibrillation electrocardioelectrodes 71 and 72 (or the conductive skin contact of the human simulator) of the human simulator by means of two leads. Referring to fig. 3, a defibrillation electrocardioelectrode 71 is arranged at the right chest electrocardio detection position of the dummy body, and a defibrillation electrocardio electrode 72 is arranged at the left abdomen electrocardio detection position of the dummy body; electrode plates of the AED trainer or the real AED or the real defibrillator are stuck on the conductive contacts of the defibrillation electrocardio-

electrodes

71 and 72, so that the electrocardio-signals generated by the electrocardio-simulation can be identified and analyzed, and whether the electrocardio-signals can be defibrillated or not can be judged; defibrillation electrocardio-

electrodes

71 and 72 can be arranged on the skin surface of the anthropomorphic dummy body, and can also be embedded in the skin body of the anthropomorphic dummy body to transmit analog signals to the skin surface through conductive materials, so long as analog defibrillation heart rate signals can be detected on the skin surface of the anthropomorphic dummy body through electrode plates, and the specific installation form is not limited. When the AED trainer or the real AED or the real defibrillator carries out defibrillation operation, the defibrillation current energy released by the AED trainer or the real AED or the real defibrillator is identified by the central processor of the anthropomorphic dummy through the conductive contact, and defibrillation discharge action can be carried out according to the actual training situation after identification.

The electrocardiogram simulation system of the embodiment is connected to the conductive contact (or the conductive skin contact of the human body) at the conventional electrocardiogram electrode slice position of the human body in a three-lead manner, and the conductive contact and the conductive skin contact are respectively at the right arm position and the left arm position, namely the left abdomen position. As shown in fig. 3. Therefore, the conductive contacts at the three electrocardio-electrodes can simulate and output electrocardiosignals, and if the electrode plates of the electrocardio monitor are stuck to the three conductive contacts, the electrocardio monitor can identify and read the electrocardiosignals of the electrocardio simulation system. The specific form of the electrocardiogram simulation system 7 of the embodiment may not be limited, and various electrocardiogram simulation systems or devices exist in the prior art, and can be suitable for being installed on a simulation body or externally connected to simulate the conventional electrocardiogram signal and the defibrillation heart rate electrocardiogram signal, so that the function of simulating the electrocardiogram signal is achieved, and the specific form and structure are not limited.

The installation of battery module 6 and anthropomorphic dummy central processing unit of this embodiment does not have special requirement, as long as can pack into and fixed through fixed position can, because anthropomorphic dummy body inner structure has great difference, the installation of these two can suitably select the position installation to fix according to actual anthropomorphic dummy body inner structure.

It should be noted that, in the installation of the laser displacement sensor of this embodiment, the emitted laser point needs to be irradiated on the lower side of the simulated sternum of the simulated human body, and is as close to the center of the simulated sternum or the center of the simulated spring as possible. The position of the simulated sternum will vary vertically up and down during chest compressions. And the installation of the chest cavity ray blocking device needs to ensure that no other structures block laser irradiation rays in the chest cavity during the process of simulating the change of the position of the sternum, namely, a ray channel is left on a ray path. The specific installation position of the laser displacement sensor is required to ensure that the distance from the laser sensor to the laser point is within the measurement distance range, and the emission direction is adjusted by adjusting the laser emission angle of the laser displacement sensor. Referring to fig. 2, it can be seen straight that the direction of arrow a (shot to line of the laser displacement sensor) is illuminated on the back side of the simulated sternum for measuring the displacement changes of the simulated sternum.

The displacement change of the simulated sternum can lead the measurement distance of the laser displacement sensor to change, but the displacement change value of the laser displacement sensor and the measurement distance transformation quantity of the measurement distance of the measurement sensor are not simply in equal relation but in one-to-one mapping relation; since the mounting positions of the laser displacement sensors are different and the mounting angles are changed variously, the one-to-one mapping relation is not a fixed formula, the calibration method has various types, and the calibration method of the embodiment is as follows:

applying a certain pressing depth xi on the sternum of the human simulator body, wherein the output electric signal of the laser displacement sensor outputs a corresponding value along with the change of the displacement of the sternum, and the electric signal value is converted into a digital quantity yi through an ADC (analog-to-digital converter) and is input into a central processor of the human simulator; the pressing depth xi value is input into the anthropomorphic dummy central processor 8 through the calibration interface 9, and the anthropomorphic dummy central processor 8 forms a mapping relation between the obtained xi and yi and stores the mapping relation in the memory 81. The values of a plurality of groups of xi and yi are measured in a calibration mode, and the pressing depth measuring precision can be improved. In the actual working process of the anthropomorphic dummy central processor, the collected electric signal values of the laser sensor correspond to the actual pressing depth through the mapping table, and the pressing depth of the electric signal values which are not in the mapping table is calculated through a linear relation. The calibration process is one of the installation processes of the design modules, and the pressing depth can be accurately measured after the calibration is finished.

The above-mentioned embodiments are only for explaining the technical solution of the present invention in detail, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art should understand that all the modifications and substitutions based on the above-mentioned principle and spirit should be within the protection scope of the present invention.

Claims

1. The utility model provides a cardiopulmonary resuscitation dummy, its includes dummy body and sets up the elastic component who is used for simulating thorax elasticity function in dummy chest, its characterized in that: one side of the elastic component is provided with a laser displacement sensor which is fixed on a back supporting part inside the dummy body, and laser emitted by the laser displacement sensor directly irradiates the center of the breast bone pressing area of the dummy body.

2. Cardiopulmonary resuscitation simulation human according to claim 1, wherein: the laser displacement sensor is fixed on the chest cavity back supporting part of the dummy body through the L-shaped support, the bottom straight part of the L-shaped support is fixed on the back supporting part of the dummy body from the chest cavity, and the laser displacement sensor is fixed on one side of the vertical plate surface of the L-shaped support.

3. The cardiopulmonary resuscitation simulator of claim 2, wherein: one side of a vertical plate surface of the L-shaped support is provided with a circular center hole and an arc waist hole with the circular center hole as a circle center, one side of the vertical plate surface, which is used for mounting the laser displacement sensor, is provided with a swing plate in a fitting manner, one end of the swing plate is hinged to the circular center hole in a fastening manner, the other end of the swing plate is mounted in the arc waist hole in a fastening manner, the swing plate is suitable for swinging within the stroke of the arc waist hole with the circular center hole as the circle center, the laser displacement sensor is fixed on the swing plate or clamped between the swing plate and a vertical plate surface of the L-shaped support, and the laser emission direction of the laser displacement sensor is suitable for being adjusted to point to the center of the cardiopulmonary resuscitation pressing area of the simulated human body along with the swinging of the swing plate.

4. The cardiopulmonary resuscitation simulator of any one of claims 1-3, wherein: the laser displacement sensor is electrically connected with a battery module in the dummy body to obtain working electric energy, and the battery module is a single battery or a battery pack.

5. Cardiopulmonary resuscitation simulation human according to claim 4, wherein: the electrocardiogram simulation system is arranged in the human simulator body and is connected with electrocardiogram electrode plates arranged on the body surface of the human simulator body through lead wires so as to send simulated electrocardiogram signals to the electrocardiogram electrode plates.

6. The cardiopulmonary resuscitation simulator of claim 5, wherein: the electrocardio electrode plates comprise two defibrillation electrocardio electrode plates for simulating defibrillation heart rate electrocardiosignals and three conventional electrocardio electrode plates for simulating normal electrocardiosignals.

7. The cardiopulmonary resuscitation simulator of claim 6, wherein: the electrocardio simulation system is connected with the two defibrillation electrocardio electrode plates through an electrocardio two-lead wire; the electrocardio simulation system is connected with the three conventional electrocardio electrode plates through an electrocardio three-lead line.

8. The cardiopulmonary resuscitation simulator of claim 7, wherein: the electrocardio simulation system is electrically connected with the battery module to obtain working electric energy.

9. The cardiopulmonary resuscitation simulator of claim 8, wherein: the main body of the human simulator is internally provided with a human simulator central processor, and the laser displacement sensor, the battery module and the electrocardio simulation system are all connected with and controlled by the human simulator central processor.

10. The cardiopulmonary resuscitation simulator of claim 9, wherein: the central processor of the anthropomorphic dummy is also connected with a memory and a power supply management module which are respectively used for storing parameter information of the cardio-pulmonary resuscitation process and managing the power supply electric energy.