CN106571094A - Breathing machine model lung device for emergency care - Google Patents
Breathing machine model lung device for emergency care Download PDFInfo
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- CN106571094A CN106571094A CN201610336719.1A CN201610336719A CN106571094A CN 106571094 A CN106571094 A CN 106571094A CN 201610336719 A CN201610336719 A CN 201610336719A CN 106571094 A CN106571094 A CN 106571094A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
- G09B23/288—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine for artificial respiration or heart massage
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
Abstract
The invention discloses a breathing machine model lung device for emergency care, and the device is provided with a monitoring system. The monitoring system comprises an oxygen centralized sampling unit, a data collection unit, a remote data transmission device, a flow monitoring unit, and a gas concentration detection unit. A display touch screen sets breath physiological parameters according to the input of a doctor, such as inspiratory/expiratory ratio, respiratory rate, tidal volume and vital capacity. A flow sensor detects an air flow passing through a scavenging port of a model lung, and a temperature sensor detects the internal temperature of a cavity of the model lung. The controller is triggered according to the set respiration parameters, detected flow signals and a temperature signal to control a throttling control valve, an atomizing spray head and a DC servo motor to operate, and adjusts the air flow and humidity. The device accords with the respiration physiology of lung, is simple in structure, is high in practicality, and is great in application values in the fields of scientific experiment research, respiration physiology teaching and detection of related products of respiration.
Description
Technical field
The invention belongs to technical field of medical instruments, more particularly to a kind of emergency care respirator test lung device.
Background technology
At present, developing rapidly with China's medical career, mechanical ventilation are used more and more generally in medical institutions of China,
Occupancy volume rapid growth of the respirator in medical institutions.The most important thing of the rescue Yi Shige great synthesis hospital of Critical Ill Patient,
The construction of intensive care unit(ICU) (ICU) is also constantly being strengthened.Wherein, for rescuing, maintaining the high-grade respirator of patient vitals,
It has been widely used in the treatment of critical patient, and in the rescue of critical patient, has played extremely important effect.
With continuous understanding of the people to physiology of respiration, the various intelligent breathing machines for meeting Human Physiology requirement constantly gush
It is existing, considerably increase the means of the rescue to critical patient and treatment.At present, even if curing in tertiary hospitalss and clinical medical teaching
Institute, often cannot get the training on operation of respirator using the medical worker of respirator, and respirator description is clinician
The Limited information of offer；And the popularization with respirator in medical institutions is used, especially community and village hospital, operate breathing
The medical worker of machine seldom has an opportunity the training on operation for obtaining respirator.This has had a strong impact on effective use of respirator, shadow
Ring the rescue and treatment to patient.In emergency care, in order to prevent the cross infection between patient, used disposable medical apparatus quilt
Widely use, mechanical ventilation is one of essential therapeutic arsenals of Emergency Patients, and every time using be intended to before respirator using simulation
Lung checks its working condition and debugs its parameter, and regulation is inconvenient.Additionally, due to the simulation method life-time service supporting with respirator, hold
It is fragile and expensive, considerably increase medical treatment cost.
The content of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of emergency care respirator test lung device, it is intended to solve
Certainly existing emergency care respirator test lung device in-convenience in use, be easily damaged, expensive problem.
The present invention is achieved in that a kind of emergency care respirator test lung device includes body, upper substrate, bottom
Seat, fixed pilum, simulation lung cavity, ventilation mouth, flow transducer, humidity sensor, throttling control valve, fog-spray nozzle, DC servo
Motor, cam, belt, connecting rod, controller and display touch screen, the display touch screen set suction by the input of doctor and exhale
Than, respiratory frequency, tidal volume, vital capacity physiology of respiration parameter, flow transducer detection is by simulating the ventilation mouth of lung cavity
Throughput, humidity sensor detection test lung chamber interior humidity, respiration parameter and inspection of the controller according to setting
The flow signal for measuring and moisture signal trigger controller control the throttling control valve, fog-spray nozzle and DC servo motor fortune
It is dynamic, adjust throughput and humidity；
Vital sign test side is provided with the base, the vital sign test side includes systolic arterial pressure sensing equipment, body
Temperature detector measurement equipment, pulse detection equipment, muscle tone testing equipment；
Described systolic arterial pressure sensing equipment includes：Pulse wave and motor message collecting unit, including collection radial artery and the upper arm
The sensor of arterial pulse wave, motion sensor, controller and attachment device, gather tested in the case of various motions and attitude
The motor message of the radial artery, brachial pulse ripple signal and forearm of person, amplifies and the signal measured by digitized；
Signal processing and analyzing unit, is connected with pulse wave and motor message collecting unit in a wired or wireless fashion, same in real time
Step control pulse wave and motor message collecting unit；
Server, is connected and is managed the continuous measuring apparatus of multiple noinvasive arteriotony, and be connected with electron medical treatment information terminal, is received
With analysis wearer under different motion state and attitude, the electrocardio of different time, blood pressure and breath data, cardiovascular fitness is calculated
Index；
The fixed pilum is arranged on the base, and the simulation lung cavity is placed between the base and upper substrate, described
Upper substrate is arranged on the internal body, and the base is arranged on the simulation lung cavity bottom, and the ventilation mouth is arranged on described
The top of upper substrate, the flow transducer are arranged in the ventilation mouth, and the humidity sensor is arranged on the test lung
The inside in chamber, the throttling control valve are arranged on the inside of the ventilation mouth, and the fog-spray nozzle is arranged on the simulation lung cavity
Inside, the DC servo motor and cam are arranged on the bottom of the body, and the DC servo motor passes through belt and institute
Cam drive connection is stated, the cam is connected with the base drive by the connecting rod, and the controller is arranged on described
The bottom of body, the display touch screen are arranged on body upper, the flow transducer, humidity sensor, throttling control valve,
Fog-spray nozzle and DC servo motor are connected with the controller, and the controller is connected with the display touch screen;
The simulation lung cavity is provided with monitoring system, and the monitoring system includes that oxygen concentrates sampling unit, data acquisition unit, remote
Journey data transmission device, traffic monitoring unitary gas concentration detecting unit, the oxygen concentrate sampling unit, the teledata
Transmitting device is electrically connected with the data acquisition unit；
Described traffic monitoring unit includes measurement pipe, the interior sensor installing pipe for setting cavity and outside temperature difference compensation module, institute
The lower end for stating sensor installing pipe is inserted into inside measurement pipe, and the lower end of the sensor installing pipe is set towards gas flow direction
First sensor is equipped with, second sensor, the first sensor and second in the cavity of the sensor installing pipe, is provided with
Sensor is electrically connected at outside temperature difference compensation module；
Described gas concentration detector unit includes amplifier adder, laser drive unit, laser originator, laser pick-off end, inspection
Survey filter unit, data processing unit；
Capacity regulating bar is provided between the upper substrate and the base, described base is provided below roller, described
Braking device is provided with roller, gas leakage adjusting screw in described simulation lung cavity, is provided with, described fog-spray nozzle with it is outer
The medical water in portion is connected, and includes display floater, elementary layer, adhesive linkage inside described display touch screen, and the elementary layer is arranged
In the outside of the display floater, the adhesive linkage is arranged between the display floater and the elementary layer, wherein, it is described viscous
The first edge and the adhesive linkage for connecing the bonding plane for being adhered to the display floater of layer is adhered to the viscous of the elementary layer
The second edge of junction is mutually displaced along bonding plane direction.
Further, the data acquisition unit control the oxygen concentrate the purity real-time to medical oxygen of sampling unit,
The concentration of carbon monoxide, the concentration of carbon dioxide, nitric oxide production concentration, the concentration of nitrogen dioxide, sulfur dioxide, oxygen dew point
And the parameter of oxygen pressure is uninterruptedly sampled, and sampled data is uploaded in the way of the signal of telecommunication data acquisition unit
Carry out data operation, process, and data are carried out to telemonitoring center by remote transmission by the remote data transmission unit
It is managed.
Further, described temperature check obtains patient body-surface temperature, infrared spectrum emissivity according to infrared spectral radiant
There is approximately uniform linear relationship with temperature at selected wavelength, i.e.,：
In formula,It is that wavelength is, spectral emissivity when temperature is T1；It is that wavelength is, spectrum when temperature is T2
Emissivity；T1, T2 are respectively two temperature not in the same time；K is coefficient；
Note Vi1For first temperature T1Under i-th passage output signal, remember Vi2For first temperature T2Under i-th passage
Output signal, T1At a temperature of emissivity, by randomly selecting one group, the T that actually obtains under parameter is calculated by following formulai1：
If, by randomly selecting a k, in second temperature T2Under the expression formula of emissivity be：
The T actually obtained under parameter is calculated by following formulai2：
Further, control method of the described emergency care with respirator test lung unit simulation people's lung autonomous respiration campaign
It is as follows：
The flow transducer detection is by simulating the throughput of lung cavity ventilation mouth and being transferred to controller, and sets physiology of respiration
Parameter；Respiration parameter and the flow signal that detect and moisture signal trigger controller control of the controller according to setting
The motion of the throttling control valve, fog-spray nozzle and DC servo motor, and motor drive signal is produced, control DC servo motor work
Make, adjust throughput and humidity, the respiratory movement of finally control simulation lung cavity；The controller controlled motor is controlled using PID
System, its controlled output is by Discrete PI D formula：Wherein：U (n) is n-th moment point motor control voltage；Kp, Ki, Kd point
Wei not the proportionality coefficient of PID controls, integral coefficient and differential coefficient；E (n) be n-th moment point flow deviation value e (n)=
Q0 (n)-Q (n), Q (n) refer to the real-time flow data at the n-th moment that flow transducer is detected, Q0 (n)=AI × QItar (n)
+ AE × QEtar (n), QItar (n) and QEtar (n) are respectively target air-breathing and expiratory flow value, upon inhalation coefficient AI=
1;AE=0, upon exhalation coefficient AI=0;AE=1；It is the deviation accumulated value from 0 moment to n-th moment；Δ e (n) is
Deviation variation rate Δ e (n)=e (n)-e (n-1).
Further, the collecting method of the data acquisition unit is：
First, echo signal x (t) is acquired within the independent sampling period with awareness apparatus, and with A/D modes to letter
Number carry out digital quantization；Then, dimensionality reduction is carried out to signal x (i) after quantization；Finally, the signal after dimensionality reduction is reconstructed；
Wherein t is sampling instant, and i is the signal sequence after quantifying；
Dimensionality reduction, specifically the difference side to the signal after quantization by finite impulse response filter are carried out to the signal after quantization
Journey, i=1 ..., M, wherein h (0) ..., h (L-1) are filter coefficient, design the compressed sensing signals collecting frame based on filtering
Frame, constructs following Teoplitz calculation matrix：
；
Then observe, i=1 ..., M, wherein b1,…,bLRegard filter coefficient as；Submatrix ΦFTSingular value be gram square
Battle array G (ΦF,T)=Φ′FTΦFT The arithmetic root of eigenvalue, verifies all eigenvalue λ i ∈ (1- δ of G (Φ F, T)K,1+δK),i
=1 ..., T, then ΦF Meet RIP, and by solving following l1 Optimization problem is reconstructing original signal：
Original signal, that is, BP algorithms are reconstructed i.e. by linear programming method；
For actual compression signal, the such as collection of voice or picture signal, then Φ is changedFFor following form：
；
If signal have on conversion basic matrix Ψ it is openness, by solving following l1 Optimization problem, Accurate Reconstruction
Go out original signal：
Wherein Φ is uncorrelated to Ψ, and Ξ is referred to as CS matrixes.
Further, the detection filter unit is carried out denoising and is decomposed using Wavelet Packet Algorithm to the signal for gathering；Specifically
For：
Signals extension, enters horizontal parabola continuation to each layer signal of WAVELET PACKET DECOMPOSITION；
If signal data is x (a), x (a+1), x (a+2), then the expression formula of continuation operator E is：
Eliminate list band un-necessary frequency composition；
By the signal after continuation and decomposition low pass filter h0 Convolution, obtains low frequency coefficient, then through HF-cut-IF operators
Process, remove unnecessary frequency content, then carry out down-sampling, obtain next layer of low frequency coefficient；By the signal after continuation with point
Solution high pass filter g0 Convolution, obtains high frequency coefficient, then through LF-cut-IF operators process, remove unnecessary frequency into
Point, then down-sampling is carried out, and next layer of high frequency coefficient is obtained, HF-cut-IF operators are as follows,
LF-cut-IF operators are as follows,
In HF-cut-IF operators and LF-cut-IF operational forms, x (n) is 2jThe coefficient of wavelet packet, N on yardstickj
Represent 2j The length of data on yardstick, k=0,1 ..., Nj-1；N=0,1 ..., Nj-1。
The emergency care of the present invention is simple with respirator test lung apparatus structure, easy to use, shows touch screen by doctor
Raw input sets inspiratory/expiratory, respiratory frequency, tidal volume, vital capacity physiology of respiration parameter, and flow transducer detection is by simulation
The throughput of the ventilation mouth of lung cavity, humidity sensor detection test lung chamber interior humidity, respiration parameter of the controller according to setting
And the flow signal that detects and moisture signal trigger controller control throttling control valve, fog-spray nozzle and DC servo motor fortune
It is dynamic, adjust throughput and humidity；The present invention more conforms to people's pulmonary respiration physiology, and simple structure is practical, grinds in scientific experimentss
Study carefully, physiology of respiration teaching, breathing Related product inspection etc. occasion there is high using value.
Description of the drawings
Fig. 1 is the structural representation of emergency care respirator test lung device provided in an embodiment of the present invention.
Fig. 2 is the structural representation of simulation lung cavity provided in an embodiment of the present invention.
Fig. 3 is the structural representation for showing touch screen provided in an embodiment of the present invention.
In figure：1st, body；2nd, upper substrate；3rd, base；3-1, roller；3-2, braking device；4th, fixed pilum；5th, mould
Intend lung cavity；5-1, gas leakage adjusting screw；6th, ventilation mouth；7th, flow transducer；8th, humidity sensor；9th, throttling control valve；10th, spray
Mist head；Helicopter-11, flow servo motor；12nd, cam；13rd, belt；14th, connecting rod；15th, controller；16th, show touch screen；16-1、
Display floater；16-2, elementary layer；16-3, adhesive linkage；17th, capacity regulating bar.
Specific embodiment
For the content of the invention, feature and effect of the present invention can be further appreciated that, following examples are hereby enumerated, and coordinates accompanying drawing
Describe in detail as follows.
Refer to accompanying drawing：
A kind of emergency care respirator test lung device, the emergency care respirator test lung device include body 1, upper base
Plate 2, base 3, fixed pilum 4, simulation lung cavity 5, ventilation mouth 6, flow transducer 7, humidity sensor 8, throttling control valve 9, spray
Mist head 10, DC servo motor 11, cam 12, belt 13, connecting rod 14, controller 15 and display touch screen 16, the display
Touch screen 16 sets the physiology of respiration parameters such as inspiratory/expiratory, respiratory frequency, tidal volume, vital capacity, the stream by the input of doctor
The throughput of ventilation mouth of the detection of quantity sensor 7 by simulation lung cavity 5, it is wet inside the detection simulation lung cavity 5 of the humidity sensor 8
Degree, the controller 15 are controlled according to the respiration parameter and the flow signal for detecting and moisture signal trigger controller 15 of setting
Make the throttling control valve 9, fog-spray nozzle 10 and DC servo motor 11 to move, adjust throughput and humidity；
The upper substrate 2 is arranged on inside the body 1, and the base 3 is arranged on 5 bottom of the simulation lung cavity, the fixation
Pilum 4 is arranged on the base 3, and the simulation lung cavity 5 is placed between the base 3 and upper substrate 2, the ventilation mouth 6
The top of the upper substrate 2 is arranged on, the flow transducer 7 is arranged in the ventilation mouth 6, and the humidity sensor 8 sets
Put in the inside of the simulation lung cavity 5, the throttling control valve 9 is arranged on the inside of the ventilation mouth 6, the fog-spray nozzle 10 sets
Put in the inside of the simulation lung cavity 5, the DC servo motor 11 and cam 12 are arranged on the bottom of the body 1, described
DC servo motor 11 is connected with the cam 12 by belt 13, the cam 12 by the connecting rod 14 with it is described
Base 3 is connected, and the controller 15 is arranged on the bottom of the body 1, and the display touch screen 16 is arranged on body 1
Portion, the flow transducer 7, humidity sensor 8, throttling control valve 9, fog-spray nozzle 10 and DC servo motor 11 and the control
Device 15 is connected, and the controller 15 is connected with the display touch screen 16, is set between the upper substrate 2 and the base 3
Capacity regulating bar 17 is equipped with, described base 3 is provided below roller 3-1, on described roller 3-1, is provided with skidding dress
3-2 is put, gas leakage adjusting screw 5-1 in described simulation lung cavity 5, is additionally provided with, described fog-spray nozzle 10 is connected with outside medical water
Connect, inside described display touch screen 16, include display floater 16-1, elementary layer 16-2, adhesive linkage 16-3, the elementary layer 16-
2 outsides for being arranged on the display floater 16-1, the adhesive linkage 16-3 are arranged on the display floater 16-1 and the unit
Between layer 16-2, wherein, the first edge of the bonding plane for being adhered to the display floater 16-1 of the adhesive linkage 16-3 and institute
The second edge for stating the bonding plane for being adhered to the elementary layer 16-2 of adhesive linkage 16-3 is mutually displaced along bonding plane direction；
Vital sign test side is provided with the base, the vital sign test side includes systolic arterial pressure sensing equipment, body
Temperature detector measurement equipment, pulse detection equipment, muscle tone testing equipment；
Described systolic arterial pressure sensing equipment includes：Pulse wave and motor message collecting unit, including collection radial artery and the upper arm
The sensor of arterial pulse wave, motion sensor, controller and attachment device, gather tested in the case of various motions and attitude
The motor message of the radial artery, brachial pulse ripple signal and forearm of person, amplifies and the signal measured by digitized；
Signal processing and analyzing unit, is connected with pulse wave and motor message collecting unit in a wired or wireless fashion, same in real time
Step control pulse wave and motor message collecting unit；
Server, is connected and is managed the continuous measuring apparatus of multiple noinvasive arteriotony, and be connected with electron medical treatment information terminal, is received
With analysis wearer under different motion state and attitude, the electrocardio of different time, blood pressure and breath data, cardiovascular fitness is calculated
Index；
The simulation lung cavity is provided with monitoring system, and the monitoring system includes that oxygen concentrates sampling unit, data acquisition unit, remote
Journey data transmission device, traffic monitoring unitary gas concentration detecting unit, the oxygen concentrate sampling unit, the teledata
Transmitting device is electrically connected with the data acquisition unit；
Described traffic monitoring unit includes measurement pipe, the interior sensor installing pipe for setting cavity and outside temperature difference compensation module, institute
The lower end for stating sensor installing pipe is inserted into inside measurement pipe, and the lower end of the sensor installing pipe is set towards gas flow direction
First sensor is equipped with, second sensor, the first sensor and second in the cavity of the sensor installing pipe, is provided with
Sensor is electrically connected at outside temperature difference compensation module；
Described gas concentration detector unit includes amplifier adder, laser drive unit, laser originator, laser pick-off end, inspection
Survey filter unit, data processing unit；
Further, the data acquisition unit controls the oxygen and concentrates the purity real-time to medical oxygen of sampling unit, an oxygen
Change concentration, the concentration of carbon dioxide, nitric oxide production concentration, the concentration of nitrogen dioxide, sulfur dioxide, oxygen dew point and the oxygen of carbon
The parameter of pressure is uninterruptedly sampled, and sampled data is uploaded to the data acquisition unit in the way of the signal of telecommunication carries out
Data operation, process, and data are carried out by remote transmission by the remote data transmission unit carry out to telemonitoring center
Management.
Further, described temperature check obtains patient body-surface temperature according to infrared spectral radiant, and infrared spectrum emissivity is in institute
There is approximately uniform linear relationship with temperature at selected wavelength, i.e.,：
In formula,It is that wavelength is, spectral emissivity when temperature is T1；It is that wavelength is, spectrum when temperature is T2
Emissivity；T1, T2 are respectively two temperature not in the same time；K is coefficient；
Note Vi1For first temperature T1Under i-th passage output signal, remember Vi2For first temperature T2Under i-th passage
Output signal, T1At a temperature of emissivity, by randomly selecting one group, the T that actually obtains under parameter is calculated by following formulai1：
If, by randomly selecting a k, in second temperature T2Under the expression formula of emissivity be：
The T actually obtained under parameter is calculated by following formulai2：
Described emergency care is as follows with the control method of respirator test lung unit simulation people's lung autonomous respiration campaign：
The flow transducer detection is by simulating the throughput of lung cavity ventilation mouth and being transferred to controller, and sets physiology of respiration
Parameter；Respiration parameter and the flow signal that detect and moisture signal trigger controller control of the controller according to setting
The motion of the throttling control valve, fog-spray nozzle and DC servo motor, and motor drive signal is produced, control DC servo motor work
Make, adjust throughput and humidity, the respiratory movement of finally control simulation lung cavity；The controller controlled motor is controlled using PID
System, its controlled output is by Discrete PI D formula：Wherein：U (n) is n-th moment point motor control voltage；Kp, Ki, Kd point
Wei not the proportionality coefficient of PID controls, integral coefficient and differential coefficient；E (n) be n-th moment point flow deviation value e (n)=
Q0 (n)-Q (n), Q (n) refer to the real-time flow data at the n-th moment that flow transducer is detected, Q0 (n)=AI × QItar (n)
+ AE × QEtar (n), QItar (n) and QEtar (n) are respectively target air-breathing and expiratory flow value, upon inhalation coefficient AI=
1;AE=0, upon exhalation coefficient AI=0;AE=1；It is the deviation accumulated value from 0 moment to n-th moment；Δ e (n) is
Deviation variation rate Δ e (n)=e (n)-e (n-1).
Further, the collecting method of the data acquisition unit is：
First, echo signal x (t) is acquired within the independent sampling period with awareness apparatus, and with A/D modes to letter
Number carry out digital quantization；Then, dimensionality reduction is carried out to signal x (i) after quantization；Finally, the signal after dimensionality reduction is reconstructed；
Wherein t is sampling instant, and i is the signal sequence after quantifying；
Dimensionality reduction, specifically the difference side to the signal after quantization by finite impulse response filter are carried out to the signal after quantization
Journey, i=1 ..., M, wherein h (0) ..., h (L-1) are filter coefficient, design the compressed sensing signals collecting frame based on filtering
Frame, constructs following Teoplitz calculation matrix：
；
Then observe, i=1 ..., M, wherein b1,…,bLRegard filter coefficient as；Submatrix ΦFTSingular value be gram square
Battle array G (ΦF,T)=Φ′FTΦFT The arithmetic root of eigenvalue, verifies all eigenvalue λ i ∈ (1- δ of G (Φ F, T)K,1+δK),i
=1 ..., T, then ΦF Meet RIP, and by solving following l1 Optimization problem is reconstructing original signal：
Original signal, that is, BP algorithms are reconstructed i.e. by linear programming method；
For actual compression signal, the such as collection of voice or picture signal, then Φ is changedFFor following form：
；
If signal have on conversion basic matrix Ψ it is openness, by solving following l1 Optimization problem, Accurate Reconstruction
Go out original signal：
Wherein Φ is uncorrelated to Ψ, and Ξ is referred to as CS matrixes.
Further, the detection filter unit is carried out denoising and is decomposed using Wavelet Packet Algorithm to the signal for gathering；Specifically
For：
Signals extension, enters horizontal parabola continuation to each layer signal of WAVELET PACKET DECOMPOSITION；
If signal data is x (a), x (a+1), x (a+2), then the expression formula of continuation operator E is：
Eliminate list band un-necessary frequency composition；
By the signal after continuation and decomposition low pass filter h0 Convolution, obtains low frequency coefficient, then through HF-cut-IF operators
Process, remove unnecessary frequency content, then carry out down-sampling, obtain next layer of low frequency coefficient；By the signal after continuation with point
Solution high pass filter g0 Convolution, obtains high frequency coefficient, then through LF-cut-IF operators process, remove unnecessary frequency into
Point, then down-sampling is carried out, and next layer of high frequency coefficient is obtained, HF-cut-IF operators are as follows,
LF-cut-IF operators are as follows,
In HF-cut-IF operators and LF-cut-IF operational forms, x (n) is 2jThe coefficient of wavelet packet, N on yardstickjTable
Show 2j The length of data on yardstick, k=0,1 ..., Nj-1；N=0,1 ..., Nj-1。
The emergency care of the present invention is simple with respirator test lung apparatus structure, easy to use, shows touch screen by doctor
Raw input sets the physiology of respiration parameters such as inspiratory/expiratory, respiratory frequency, tidal volume, vital capacity, and flow transducer detection is by mould
Intend the throughput of the ventilation mouth of lung cavity, humidity sensor detection test lung chamber interior humidity, breathing ginseng of the controller according to setting
Number and the flow signal for detecting and moisture signal trigger controller control throttling control valve, fog-spray nozzle and DC servo motor
Motion, adjusts throughput and humidity；The present invention more conforms to people's pulmonary respiration physiology, and simple structure is practical, in scientific experimentss
The occasions such as research, physiology of respiration teaching, breathing Related product inspection have high using value.
Using technical solutions according to the invention, or those skilled in the art is under the inspiration of technical solution of the present invention,
Similar technical scheme is designed, and reaches above-mentioned technique effect, fall into protection scope of the present invention.
Claims (3)
1. a kind of emergency care respirator test lung device, it is characterised in that the emergency care is filled with respirator test lung
Put including body, upper substrate, base, fixed pilum, simulation lung cavity, ventilation mouth, flow transducer, humidity sensor, throttling control
Valve processed, fog-spray nozzle, DC servo motor, cam, belt, connecting rod, controller and display touch screen, the display touch screen lead to
The input for crossing doctor sets inspiratory/expiratory, respiratory frequency, tidal volume, vital capacity physiology of respiration parameter, the flow transducer detection
By the throughput for simulating the ventilation mouth of lung cavity, humidity sensor detection test lung chamber interior humidity, the controller root
The throttling control valve, spray are controlled according to the respiration parameter and the flow signal for detecting and moisture signal trigger controller of setting
Mist head and DC servo motor motion, adjust throughput and humidity；
Vital sign test side is provided with the base, the vital sign test side includes systolic arterial pressure sensing equipment, body
Temperature detector measurement equipment, pulse detection equipment, muscle tone testing equipment；
Described systolic arterial pressure sensing equipment includes：Pulse wave and motor message collecting unit, including collection radial artery and the upper arm
The sensor of arterial pulse wave, motion sensor, controller and attachment device, gather tested in the case of various motions and attitude
The motor message of the radial artery, brachial pulse ripple signal and forearm of person, amplifies and the signal measured by digitized；
Signal processing and analyzing unit, is connected with pulse wave and motor message collecting unit in a wired or wireless fashion, same in real time
Step control pulse wave and motor message collecting unit；
Server, is connected and is managed the continuous measuring apparatus of multiple noinvasive arteriotony, and be connected with electron medical treatment information terminal, is received
With analysis wearer under different motion state and attitude, the electrocardio of different time, blood pressure and breath data, cardiovascular fitness is calculated
Index；
The fixed pilum is arranged on the base, and the simulation lung cavity is placed between the base and upper substrate, described
Upper substrate is arranged on the internal body, and the base is arranged on the simulation lung cavity bottom, and the ventilation mouth is arranged on described
The top of upper substrate, the flow transducer are arranged in the ventilation mouth, and the humidity sensor is arranged on the test lung
The inside in chamber, the throttling control valve are arranged on the inside of the ventilation mouth, and the fog-spray nozzle is arranged on the simulation lung cavity
Inside, the DC servo motor and cam are arranged on the bottom of the body, and the DC servo motor passes through belt and institute
Cam drive connection is stated, the cam is connected with the base drive by the connecting rod, and the controller is arranged on described
The bottom of body, the display touch screen are arranged on body upper, the flow transducer, humidity sensor, throttling control valve,
Fog-spray nozzle and DC servo motor are connected with the controller, and the controller is connected with the display touch screen;
The simulation lung cavity is provided with monitoring system, and the monitoring system includes that oxygen concentrates sampling unit, data acquisition unit, remote
Journey data transmission device, traffic monitoring unitary gas concentration detecting unit, the oxygen concentrate sampling unit, the teledata
Transmitting device is electrically connected with the data acquisition unit；
Described traffic monitoring unit includes measurement pipe, the interior sensor installing pipe for setting cavity and outside temperature difference compensation module, institute
The lower end for stating sensor installing pipe is inserted into inside measurement pipe, and the lower end of the sensor installing pipe is set towards gas flow direction
First sensor is equipped with, second sensor, the first sensor and second in the cavity of the sensor installing pipe, is provided with
Sensor is electrically connected at outside temperature difference compensation module；
Described gas concentration detector unit includes amplifier adder, laser drive unit, laser originator, laser pick-off end, inspection
Survey filter unit, data processing unit；
Capacity regulating bar is provided between the upper substrate and the base, described base is provided below roller, described
Braking device is provided with roller, gas leakage adjusting screw in described simulation lung cavity, is provided with, described fog-spray nozzle with it is outer
The medical water in portion is connected, and includes display floater, elementary layer, adhesive linkage inside described display touch screen, and the elementary layer is arranged
In the outside of the display floater, the adhesive linkage is arranged between the display floater and the elementary layer, wherein, it is described viscous
The first edge and the adhesive linkage for connecing the bonding plane for being adhered to the display floater of layer is adhered to the viscous of the elementary layer
The second edge of junction is mutually displaced along bonding plane direction；
The data acquisition unit control the oxygen concentrate the purity real-time to medical oxygen of sampling unit, carbon monoxide it is dense
The ginseng of degree, the concentration of carbon dioxide, nitric oxide production concentration, the concentration of nitrogen dioxide, sulfur dioxide, oxygen dew point and oxygen pressure
Counting and uninterruptedly sampled, and sampled data is uploaded to the data acquisition unit in the way of the signal of telecommunication carries out data fortune
Calculate, process, and data are carried out by remote transmission by the remote data transmission unit and be managed to telemonitoring center；
Described temperature check obtains patient body-surface temperature according to infrared spectral radiant, and infrared spectrum emissivity is in selected ripple
Strong point has approximately uniform linear relationship with temperature, i.e.,：
In formula,It is that wavelength is, spectral emissivity when temperature is T1；It is that wavelength is, spectrum when temperature is T2
Emissivity；T1, T2 are respectively two temperature not in the same time；K is coefficient；
Note Vi1For first temperature T1Under i-th passage output signal, remember Vi2For first temperature T2Under i-th passage
Output signal, T1At a temperature of emissivity, by randomly selecting one group, the T that actually obtains under parameter is calculated by following formulai1：
If, by randomly selecting a k, in second temperature T2Under the expression formula of emissivity be：
The T actually obtained under parameter is calculated by following formulai2：
Described emergency care is as follows with the control method of respirator test lung unit simulation people's lung autonomous respiration campaign：
The flow transducer detection is by simulating the throughput of lung cavity ventilation mouth and being transferred to controller, and sets physiology of respiration
Parameter；Respiration parameter and the flow signal that detect and moisture signal trigger controller control of the controller according to setting
The motion of the throttling control valve, fog-spray nozzle and DC servo motor, and motor drive signal is produced, control DC servo motor work
Make, adjust throughput and humidity, the respiratory movement of finally control simulation lung cavity；The controller controlled motor is controlled using PID
System, its controlled output is by Discrete PI D formula：Wherein：U (n) is n-th moment point motor control voltage；Kp, Ki, Kd point
Wei not the proportionality coefficient of PID controls, integral coefficient and differential coefficient；E (n) be n-th moment point flow deviation value e (n)=
Q0 (n)-Q (n), Q (n) refer to the real-time flow data at the n-th moment that flow transducer is detected, Q0 (n)=AI × QItar (n)
+ AE × QEtar (n), QItar (n) and QEtar (n) are respectively target air-breathing and expiratory flow value, upon inhalation coefficient AI=
1;AE=0, upon exhalation coefficient AI=0;AE=1；It is the deviation accumulated value from 0 moment to n-th moment；Δ e (n) is
Deviation variation rate Δ e (n)=e (n)-e (n-1).
2. emergency care as claimed in claim 1 respirator test lung device, it is characterised in that the data acquisition unit
Collecting method is：
First, echo signal x (t) is acquired within the independent sampling period with awareness apparatus, and with A/D modes to letter
Number carry out digital quantization；Then, dimensionality reduction is carried out to signal x (i) after quantization；Finally, the signal after dimensionality reduction is reconstructed；
Wherein t is sampling instant, and i is the signal sequence after quantifying；
Dimensionality reduction, specifically the difference side to the signal after quantization by finite impulse response filter are carried out to the signal after quantization
Journey, i=1 ..., M, wherein h (0) ..., h (L-1) are filter coefficient, design the compressed sensing signals collecting frame based on filtering
Frame, constructs following Teoplitz calculation matrix：
；
Then observe, i=1 ..., M, wherein b1,…,bLRegard filter coefficient as；Submatrix ΦFTSingular value be gram matrix
G(ΦF,T)=Φ′FTΦFT The arithmetic root of eigenvalue, verifies all eigenvalue λ i ∈ (1- δ of G (Φ F, T)K,1+δK),i
=1 ..., T, then ΦF Meet RIP, and by solving following l1 Optimization problem is reconstructing original signal：
Original signal, that is, BP algorithms are reconstructed i.e. by linear programming method；
For actual compression signal, the such as collection of voice or picture signal, then Φ is changedFFor following form：
；
If signal have on conversion basic matrix Ψ it is openness, by solving following l1 Optimization problem, Accurate Reconstruction go out
Original signal：
Wherein Φ is uncorrelated to Ψ, and Ξ is referred to as CS matrixes.
3. emergency care as claimed in claim 1 respirator test lung device, it is characterised in that the detection filter unit is adopted
Denoising is carried out to the signal for gathering and is decomposed with Wavelet Packet Algorithm；Specially：
Signals extension, enters horizontal parabola continuation to each layer signal of WAVELET PACKET DECOMPOSITION；
If signal data is x (a), x (a+1), x (a+2), then the expression formula of continuation operator E is：
Eliminate list band un-necessary frequency composition；
By the signal after continuation and decomposition low pass filter h0 Convolution, obtains low frequency coefficient, then through HF-cut-IF operators
Process, remove unnecessary frequency content, then carry out down-sampling, obtain next layer of low frequency coefficient；By the signal after continuation with point
Solution high pass filter g0 Convolution, obtains high frequency coefficient, then through LF-cut-IF operators process, remove unnecessary frequency into
Point, then down-sampling is carried out, and next layer of high frequency coefficient is obtained, HF-cut-IF operators are as follows,
LF-cut-IF operators are as follows,
In HF-cut-IF operators and LF-cut-IF operational forms, x (n) is 2jThe coefficient of wavelet packet, N on yardstickjTable
Show 2j The length of data on yardstick, k=0,1 ..., Nj-1；N=0,1 ..., Nj-1。
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