CN203469165U

CN203469165U - Respirator

Info

Publication number: CN203469165U
Application number: CN201320510876.1U
Authority: CN
Inventors: 季贵龚
Original assignee: JIANGSU FOLEE MEDICAL EQUIPMENT CO Ltd
Current assignee: JIANGSU FOLEE MEDICAL EQUIPMENT CO Ltd
Priority date: 2013-08-21
Filing date: 2013-08-21
Publication date: 2014-03-12
Anticipated expiration: 2023-08-21

Abstract

The utility model discloses a respirator. The respirator comprises an air path system and a control system. The control system controls the air path system. The air path system comprises an air source supply system and a respiration loop system. The air source supply system is composed of a turbofan, a filter, a heated humidifier, an electromagnetic valve, a flow control valve and an air supply flow sensor, wherein the turbofan, the filter, the heated humidifier, the electromagnetic valve, the flow control valve and the air supply flow sensor are sequentially connected. The respiration loop system is composed of a main control valve, an inspiration flow sensor, a mask, an expiration flow sensor and an expiration control valve, wherein the main control valve, the inspiration flow sensor, the mask, the expiration flow sensor and the expiration control valve are sequentially connected. A pressure sensor is connected to the mask. The control system comprises a controller, an A/D conversion module and a displayer. The A/D conversion module and the displayer are connected with the controller respectively. The respirator is large in adjustable range, high in accuracy, reliable in performance, flexible to operate, low in cost and long in service life.

Description

A kind of respirator

Technical field

This utility model relates to a kind of respirator, especially relates to a kind of intelligent sleep respirator.

Background technology

Current respirator is applied more and more extensive in hospitalize or individual home care, by type of drive, can be divided into pneumatic respirator and electric pulmotor.

Because pneumatic respirator needs compressed gas source, cause its volume ratio larger, should not move and carry, limited range of application.

Electric pulmotor adopts motor to drive, and only needs power supply to use, but current most of electric pulmotor can not Real-Time Monitoring and the adjusting of controlling gas, therefore easily causes generation and the dependence of patient to respirator of ventilator-associated lung injury; At user during in different breathing state, different output pressure and flow-compensated can not be provided, to user, cause uncomfortable sensation.

Summary of the invention

The purpose of this utility model is to provide a kind of respirator, and this respirator can be adjusted output pressure and flow-compensated in real time, makes user feel comfortable.

This utility model is achieved by the following technical programs:

A respirator, comprises air-channel system, control system, and control system is controlled air-channel system;

Air-channel system comprises source of the gas supply system, breathing circuit system; Source of the gas supply system is by the turbofan connecting successively, filter, warming humidification device, electromagnetic valve, flow control valve, gas supply flow sensor and form; Breathing circuit system by the main control valve connecting successively, inspiratory flow sensor, face shield, expiratory flow sensor, exhalation control valve and form, is connected with pressure transducer on face shield; The gas supply flow sensor of source of the gas supply system is connected with the main control valve of breathing circuit system;

Control system comprises controller, A/D modular converter, display, and A/D modular converter is connected with controller respectively with display; A/D modular converter comprises AD conversion chip, DA conversion chip, control chip, AD conversion chip, DA conversion chip are connected with control chip respectively, control chip is connected with controller, gas supply flow sensor, inspiratory flow sensor, expiratory flow sensor, pressure transducer are connected with DA conversion chip, and turbofan, electromagnetic valve, main control valve, exhalation control valve, flow control valve are connected with AD conversion chip.

This utility model adopts usings turbofan as driving device, is conducive to the portability of respirator, and has response time faster, higher drive efficiency and service life, control system adopts A/D modular converter can pass through the duty of sensor Real-Time Monitoring respirator and the breathing state of user, and transfer data to controller, controller is by contrasting with the parameter of control personnel input, after discriminatory analysis, the various actuators of control signal being passed to respirator by interface are as electromagnetic valve, flow control valve and turbofan etc., complete corresponding function, monitor the breathing state of respirator simultaneously and by the parameter value of input and current duty as expiration tidal volume, expiration ventilation, real-time pressure and real-time flow rate etc. are presented on display, positive airway pressure in realizing, automatic Regulation, the ventilating modes such as two horizontal malleations, in treatment patient, reduce as far as possible the generation of ventilator-associated lung injury, this utility model adjustable extent is large, precision is high, dependable performance, flexible operation, cost are low, long service life.

Advantage and disadvantage of the present utility model, the non-limitative illustration by preferred embodiment below is for illustration and explanation, and these embodiment, only provide as an example with reference to accompanying drawing.

Accompanying drawing explanation

Fig. 1 is air-channel system figure of the present utility model;

Fig. 2 is control system figure of the present utility model.

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail.

As shown in Figure 1, this utility model comprises air-channel system 1, control system 2, and control system 2 is controlled air-channel system 1;

Air-channel system 1 comprises source of the gas supply system 11, breathing circuit system 12; Source of the gas supply system 11 is by the turbofan 111 connecting successively, filter 112, warming humidification device 113, electromagnetic valve 114, flow control valve 115, gas supply flow sensor 116 and form; Breathing circuit system 12 by the main control valve 121 connecting successively, inspiratory flow sensor 122, face shield 123, expiratory flow sensor 125, exhalation control valve 126 and form, is connected with pressure transducer 124 on face shield 123; The gas supply flow sensor 116 of source of the gas supply system 11 is connected with the main control valve 121 of breathing circuit system 12;

As shown in Figure 2, control system 2 comprises controller 21, A/D modular converter 22, display 23, and A/D modular converter 22 is connected with controller 21 respectively with display 23; A/D modular converter 22 comprises AD conversion chip 221, DA conversion chip 222, control chip 223, AD conversion chip 221, DA conversion chip 222 are connected with control chip 223 respectively, control chip 223 is connected with controller 21, gas supply flow sensor 116, inspiratory flow sensor 122, expiratory flow sensor 125, pressure transducer 124 are connected with DA conversion chip 222, and turbofan 111, electromagnetic valve 114, main control valve 121, exhalation control valve 126, flow control valve 115 are connected with AD conversion chip 221.

When respirator demand motive gas, electromagnetic valve 114 is connected, through control system 2 control turbofans 111 output pressure and and the output flow of flow control valve 115, obtain the driving gas of a certain amount of output gas flow of gas and pressure, drive gas to enter breathing circuit system 12 by filter 112, warming humidification device 113, electromagnetic valve 114, flow control valve 115, gas supply flow sensor 116; When respirator is not during demand motive gas, close flow control valve 115, electromagnetic valve 114 is in order to improve the trigger sensitivity of respirator as servo valve, the expiration of respirator and air-breathing switching simultaneously realizes by electromagnetic valve 114, by air-breathing, be switched to while exhaling, electromagnetic valve 114 is driving autogenous cuttings to change to bypass, and turbofan 111 is in " idling " state, so each ventilation cycle turbofan 111 need not start repeatedly, to guarantee the corresponding time of air-breathing minimum.

Breathing circuit system 12 adopts single loop formula gas circuit modes, intake period main control valve 121 open, drive gas to flow into face shields 123 to user air feed through inspiratory flow sensor 122, now exhalation control valve 126 is closed, expiratory system is inoperative.The effect of main control valve 121 is to make within airway pressure remains on safety range; Expiration phase source of the gas supply system 11 stops air feed, and main control valve 121 is closed, and exhalation control valve 126 is opened, and breath is discharged into atmosphere through expiratory flow sensor 125, exhalation control valve 126; Inspiratory flow sensor 122 and expiratory flow sensor 125 all adopt pressure difference sensor, at this moment, because pressure difference sensor has the advantages that response time is fast, precision is high, can increase certainty of measurement and the various breathing pattern triggering precision of respirator.

Control system 2 is converted into by certain sample frequency the digital signal that microcomputer can be identified by the continuous analog voltage signal of various sensors, then controller 21 is through contrasting with the parameter of control personnel input, after discriminatory analysis, the various actuators that control signal is passed to respirator are as turbofan 111, electromagnetic valve 114, main control valve 121, exhalation control valve 126, flow control valve 115, complete corresponding function, monitor the breathing state of respirator simultaneously and by the parameter value of input and current duty as expiration tidal volume, expiration ventilation, real-time pressure and real-time flow rate etc. are presented on display.

In addition to the implementation, this utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of this utility model requirement.

Claims

1. a respirator, is characterized in that: comprise air-channel system, control system, described control system is controlled air-channel system;

Described air-channel system comprises source of the gas supply system, breathing circuit system; Described source of the gas supply system is by the turbofan connecting successively, filter, warming humidification device, electromagnetic valve, flow control valve, gas supply flow sensor and form; Described breathing circuit system by the main control valve connecting successively, inspiratory flow sensor, face shield, expiratory flow sensor, exhalation control valve and form, is connected with pressure transducer on described face shield; The gas supply flow sensor of described source of the gas supply system is connected with the main control valve of breathing circuit system;

Described control system comprises controller, A/D modular converter, display, and described A/D modular converter is connected with controller respectively with display; Described A/D modular converter comprises AD conversion chip, DA conversion chip, control chip, described AD conversion chip, DA conversion chip are connected with control chip respectively, described control chip is connected with controller, described gas supply flow sensor, inspiratory flow sensor, expiratory flow sensor, pressure transducer are connected with DA conversion chip, and described turbofan, electromagnetic valve, main control valve, exhalation control valve, flow control valve are connected with AD conversion chip.