CN206896579U - A kind of intelligent rehabilitation lung ventilator - Google Patents

Abstract

The utility model proposes a kind of intelligent rehabilitation lung ventilator.The utility model includes oxygen mask, mainframe box and industrial control board.Mainframe box includes Switching Power Supply, source of the gas, sensor, air guide chamber, magnetic valve and message processing module；Switching Power Supply provides suitable voltage as transformer for lung ventilator；Source of the gas provides air-flow；Air guide chamber is used for air guide；Sensor is used for gathering air-flow velocity intensity and pressure；Discharge controlling part of the magnetic valve as gas；Message processing module includes information acquisition card and amplifying circuit.The intensity of the utility model air-flow according to produced by the current autonomous respiration of the patient detected, and then trigger matched secondary air, and the moment is synchronous with the holding of patient respiratory frequency, patient's autonomous respiration ability that doctor detects according to lung ventilator carries out real-time parameter regulation, ensure that patient can be in the matching stream condition of suitable strength always, so as to realize intelligentized control method to secondary air rhythm and intensity caused by lung ventilator.

Description

A kind of intelligent rehabilitation lung ventilator

Technical field

The utility model proposes a kind of intelligent rehabilitation lung ventilator, belong to medical equipment technological field.

Background technology

Lung ventilator is a kind of medicine equipment of the most frequently used auxiliary Rehabilitation in clinical medicine, according to mechanical ventilation principle Develop.China's lung ventilator is started late, and at present, domestic lung ventilator is technically most of to be in using for reference and imitating state Outer product technology, in terms of service quality, especially in reliability, developed countries are lagged behind, so country is very heavy Depending on the innovation and research of lung ventilator technology.Existing lung ventilator can be largely classified into two major classes according to ventilating mode：Stress control leads to Gas and volume controlled ventilation.

Pressure controlled ventilation pattern is mainly used as handoff parameter using airway pressure.Lung ventilator produces air-flow and enters breathing Road, make alveolar ectasia, chest, lung are extended, and pressure constantly raises in respiratory tract, and after reaching scheduled pressure value, air-flow terminates, and switchs to Exhale, now intra-airway pressure constantly declines, and reaches a predetermined value, and air-flow occurs again.Its advantage is to reduce PIP, is subtracted Few probability for causing danger due to airway pressure；Gas distribution uniform, gas exchanges can be improved.But its tidal volume can not protect Card, is particularly easy to cause patient-ventilator asynchrony problem.

Volume controlled ventilation pattern is mainly used as handoff parameter using capacity.Lung ventilator breathes default tidal volume by people Lung is sent into road, and it ensures in predetermined pressure limit, and tidal volume is not influenceed by respiratory dynamics and airway resistance change. Its advantage is can to provide accurate tidal volume according to preset value, will not cause excessive or very few phenomenon of ventilating, also will not be with The change of PFT and change.For from combination property and control effect, better than pressure controlled ventilation pattern.

But which type of lung ventilator all exist two it is shared the defects of.When no specific aim, to different Patient and different pathological states all carry out assisted respiartion with single control parameter, and hypoventilation often so occurs Or excessive ventilation phenomenon, different degrees of injury of lungs is caused to patient；Another is man-machine uncoordinated phenomenon, patient respiratory frequency It is different from the assisted ventilation frequency of lung ventilator, so can be that patient brings great pain.

The content of the invention

In order to overcome the above insufficient, the utility model proposes a kind of intelligent rehabilitation lung ventilator.

Technical scheme is used by the utility model solves its technical problem：

The utility model includes oxygen mask, mainframe box and WINCE industrial control boards.Mainframe box detection is connected from patient's mouth and nose Derived current rate in the oxygen mask connect, the signal detected are sent to WINCE industrial control boards by mainframe box；Described master Cabinet includes Switching Power Supply, source of the gas, sensor, air guide chamber, magnetic valve and message processing module；Switching Power Supply is as transformation Device, suitable voltage is provided for lung ventilator；Source of the gas provides air-flow；Air guide chamber is used for air guide；Sensor is used for gathering air-flow velocity Intensity and pressure；Discharge controlling part of the magnetic valve as gas；Message processing module include USB6009 information acquisition cards with And amplifying circuit；Described magnetic valve includes air guide interface tube, hollow magnet, slide coil, hollow pipe and shell；It is wherein hollow The left side of magnet communicates with the air guide interface tube of outside, and right side communicates with hollow pipe；It is closing on the right side of hollow pipe, and at it An aperture is provided with side wall, just relative with the magnetic valve venthole on shell, the periphery of hollow magnet carries slide coil.

The utility model current rate according to caused by the current autonomous respiration of the patient detected, and then trigger phase therewith The secondary air of matching, and the moment is synchronous with the holding of patient respiratory frequency, avoids patient-ventilator asynchrony problem, and doctor can be according to exhaling Inhale patient's autonomous respiration ability that machine examination measures and carry out real-time parameter regulation, it is ensured that patient can be in optimal strong always The matching stream condition of degree, so as to realize intelligentized control method to secondary air rhythm and intensity caused by lung ventilator.

Brief description of the drawings

Fig. 1 is the utility model structure drawing of device；

Fig. 2 is the utility model mainframe box cut-away view；

Fig. 3 a and Fig. 3 b are the utility model magnetic valve schematic diagram；

Fig. 4 is the utility model instrumentation figure；

Fig. 5 is utility model works flow chart

Embodiment

The utility model is further illustrated with reference to the accompanying drawings and examples.

As shown in figure 1, it is the utility model structure drawing of device.Intelligent rehabilitation lung ventilator can be divided into three parts：First It is divided into the model ComfortGel Blue provided by Philip Acoba L. L. C. oxygen mask 1, the mask attached gel skill Art, it is stable, comfortable, there are 360 degree of turning glands, increase the free degree of wearer；Part II is Guangzhou Luo Gang industry controls company The model WLT_0431 of design WINCE industrial control boards 3, industrial control board CPU are Samsung S3C2416, ARM9 framework, and dominant frequency is 400MHz, there is higher data processing speed, while there are 3 road network communication serial ports, two-way peripheral hardware serial ports, can support a variety of Exploitation software, such as Visual Studio, EVC++ and Labview, its extended capability are stronger；Part III is mainframe box 2. When system starts running, mainframe box 2 detects to patient's autonomous respiration intensity, transfers information in industrial control board 3, utilizes The program that the Labview softwares of 2014 versions are write analyzes and processes to it, and makes corresponding instruction according to analysis result, Realize automatic detection, the function of intelligent control.

As shown in Fig. 2 it is mainframe box cut-away view of the present utility model.Intelligent rehabilitation lung ventilator mainframe box internal structure Mainly comprise the following steps：

1) the western SA5012 Switching Power Supplies 4 of morals power, AC-input voltage are 85 ~ 132 and 170 ~ 264, can be selected by switch, With reliable and stable 12VDC output voltages；

2) the WS7040-24-V200N air blowers source of the gas 5 of ripples Dongguo electromechanics Co., Ltd production, the blower fan are rolled using NMB Pearl bearing, has longer service life and low noise, and air quantity is stable, and for highest confining pressure up to 6Kpa, air output is bigger, Maximum open air quantity reaches 200L/min, and motor is three-phase direct-current brushless structure, reduces windage, while there are three Hall members inside Part, high sensitivity, driving circuit of brushless electric machine is external, is easy to connect with other equipment；

3) model AWM700 and the 26PCA sensing device 6 of .Honywell companies design, the former is at feature：Maximum stream flow Value can keep high stability up to 200SLPM, zero-bit with full scale, and encapsulation is compact, and sealing is good, is not in gas leakage Situation, extremely low hysteresis and repeatability error, less than the 0.35% of reading, the response time is short, sensitiveer, usually 6ms, Power consumption is relatively low, is up to 60mW；The latter's feature is：Maximum range is ± 1psi（About ± 68cmH2O）, resolution ratio be better than 0.03% FSS（Full scale）, there is high burst pressure force characteristic, up to 415inH2O（1034mbar）More than, in varying environment Higher sensitivity can also be kept down, to installation direction and whether vibrates all no requirement (NR)s, and small volume, area occupied is small；

4) air guides chamber 7, i.e., for air guide and connection various pieces；

5) magnetic valve 8 of independent developments, according to electromagnetism perception principle autonomous Design, rated voltage 12V, have higher Sensitivity；

6) message processing modules 9, with reference to integrated circuit knowledge, the amplifying circuit and AD conversion module of design.

Its course of work is：Switching Power Supply 4 is that message processing module 9 is powered, and message processing module 9 is according to from industry control The instruction that the main program of plate 3 provides, dominate source of the gas 1, sensing device 6 and magnetic valve 8 and worked in order, air guide chamber 7 is as connection System all parts and the effect of air-flow conducting.

As shown in Figure 3 a and Figure 3 b shows, it is magnetic valve schematic diagram of the present utility model.Its structure can be divided into air guide interface tube 10th, hollow magnet 11, slide coil 12, hollow pipe 13 and shell 13.The wherein left side of hollow magnet 11 and outside airway tube Interface 10 communicates, and right side communicates with hollow pipe 13；The right side of hollow pipe 13 is closing, and is provided with its side wall one small Hole, it is just relative with magnetic valve venthole 15.The course of work of magnetic valve is：When energized, due to electromagnetic induction, slide coil 12 Right side is pulled to, the venthole 15 between the side wall of hollow pipe 13 and shell 14 is blocked, ensures that air-flow will not flow out, realizes resistance The function of stream, see Fig. 3 a；When power is off, slide coil 12 returns to initial position, and now, air-flow is flowed by outside air guide interface tube 10 Enter, by hollow magnet 11 and hollow pipe 13, flowed out by the side wall aperture of hollow pipe 13, finally discharge, realize in venthole 15 Through-flow function, see Fig. 3 b.

As shown in Figure 4 and Figure 5, the workflow of intelligent rehabilitation lung ventilator is：When system brings into operation, detect from patient Derived current rate in the oxygen mask that mouth and nose are connected, current rate is detected if zero, i.e., no autonomous respiration energy Power, then doctor's advice parameter is just set to it and carries out assisted respiartion；If detecting that current rate is not zero, that is, there is autonomous respiration energy Power, accordingly, system can be amplified the signal detected by mainframe box and analog-to-digital conversion, is sent in WINCE industrial control boards Handled, while instruction can be sent, allow mainframe box to dominate auxiliary of the source of the gas to match with current patents' autonomous respiration ability Current rate is supplied gas, and now system is formally supplied gas state into auxiliary.When detect actual tidal volume with it is set When target tidal volume mismatches, system can automatically adjust the air inlet intensity of source of the gas, eventually keep stable tidal volume to be sent Gas.

Claims (1)

1. a kind of intelligent rehabilitation lung ventilator, including oxygen mask, mainframe box and WINCE industrial control boards, it is characterised in that：Mainframe box is examined Derived current rate, the signal detected from the oxygen mask being connected with patient's mouth and nose is surveyed to be sent to by mainframe box WINCE industrial control boards；Described mainframe box includes Switching Power Supply, source of the gas, sensor, air guide chamber, magnetic valve and information processing mould Block；Switching Power Supply provides suitable voltage as transformer for lung ventilator；Source of the gas provides air-flow；Air guide chamber is used for air guide；Sensing Device is used for gathering air-flow velocity intensity and pressure；Discharge controlling part of the magnetic valve as gas；Message processing module includes USB6009 information acquisition cards and amplifying circuit；Described magnetic valve includes air guide interface tube, hollow magnet, slide coil, sky Heart pipe and shell；Wherein the left side of hollow magnet communicates with the air guide interface tube of outside, and right side communicates with hollow pipe；Hollow pipe is right Side is closing, and an aperture is provided with its side wall, just relative with the magnetic valve venthole on shell, hollow magnet Periphery carries slide coil.