CN202459688U - Medical oxygen delivery monitor - Google Patents
Medical oxygen delivery monitor Download PDFInfo
- Publication number
- CN202459688U CN202459688U CN2012200344797U CN201220034479U CN202459688U CN 202459688 U CN202459688 U CN 202459688U CN 2012200344797 U CN2012200344797 U CN 2012200344797U CN 201220034479 U CN201220034479 U CN 201220034479U CN 202459688 U CN202459688 U CN 202459688U
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- oxygen
- gas circuit
- valve body
- medical oxygen
- oxygen therapy
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Abstract
A medical oxygen delivery monitor comprises a humidification bottle and an oxygen passage valve body which is combined with the humidification bottle, wherein an oxygen source inlet connector which is communicated with an inlet passage, an oxygen outlet connector which is communicated with an outlet passage and a control valve which controls the oxygen flow are arranged on the oxygen passage valve body, the oxygen passage valve body is connected with an electronic flowmeter which is formed by a differential pressure transducer and a pore plate oxygen channel, and the electronic flowmeter is connected with an intelligent control instrument. The medical oxygen delivery monitor adopts the technologies of the electronic flowmeter and a microcomputer, not only has all the functions of a compatible float type oxygen inhalator, but also realizes the following new functions that (1) the oxygen flow and oxygen concentration are digitally displayed, so the problem that the oxygen concentration cannot be displayed is solved; (2) the oxygen delivery time is automatically accumulated, and the oxygen consumption is scientifically calculated and displayed at any time, so scientific basis is provided for reasonable charge; and (3) the oxygen flow and limit scope can be set: the medical oxygen delivery monitor is automatically switched to alarm for prompt when the flow is too small (accidental blocking and leakage) or too large (oxygen source pressure jump) during the oxygen delivery process, so the occurrence of accidents is effectively prevented.
Description
Technical field
This utility model relates to medical apparatus and instruments, relates to a kind of medical oxygen therapy monitor specifically.
Background technology
Oxygen therapy is extensively applied to hospital and first aid place as a kind of treatment or rescue means, and oxygen inhalation apparatus is indispensable as a kind of meter shellfish in the process of oxygen therapy.Present domestic medical oxygen therapy generally use to be that the simple float type oxygen of a kind of function sucks its structure as shown in Figure 1, mainly comprise gas circuit valve body 3', oxygen intake joint 1', flowrator 2', flow control valve 4', relief valve and the oxygen outlet joint 5' and the wetting bottle 6' that combine with gas circuit valve body 3'.The key component of its composition is a flowrator, oxygen through the time height that floats by buoy indicate flow; The big I of flow is the oxygen that humidifies from the dry oxygen source of the gas through the effect of wetting bottle; Can be adapted to different concentrated oxygen supply gang socket or the joint behind the oxygen cylinder air relief valve through changing different oxygen intake joints; Relief valve is used for being connected the pipeline that leads to patient with the oxygen out splice going splice.In patient being cured by oxygen therapy treatment and rescue process, except control oxygen flow size, oxygen concentration, oxygen consumption, input time etc. also are important index, because too high oxygen concentration and long oxygen therapy time all can cause the oxygen-intoxication malpractice; Oxygen consumption how much be one of main foundation of oxygen therapy treatment charge, irrational charge causes the economic dispute between medical institutions and the patient easily; In addition sometimes because the unusual situation such as (oxygen delivery tube obstruction, gas leakage, oxygen source pressure jumps) of the oxygen flow that accidental cause causes if the nursing staff does not in time find to handle, will produce malpractice.The float type oxygen inhalation apparatus is simple in structure because of it, only has functions such as Flow-rate adjustment, flow indication and oxygen humidify.Can't realize the function of above-mentioned requirements in actual use.The operation principle of float flow meter has determined it must place accurately indication flow perpendicular to horizontal plane in use in addition, therefore the location status after installing is had certain requirement.
Summary of the invention
The purpose of this utility model provide a kind of collect numeral show flow with corresponding oxygen concentration, add up to report to the police automatically when flow is too small and excessive in oxygen therapy time and oxygen consumption, the oxygen therapy process automatically, regularly oxygen therapy, remember the medical oxygen therapy monitor that oxygen therapy time and oxygen consumption function are one automatically.
For realizing above-mentioned purpose, this utility model adopts following technical scheme:
This utility model comprises wetting bottle and the gas circuit valve body that combines with wetting bottle; The control valve of the air source inlet joint that is connected with inlet channel, the oxygen outlet joint that is connected with outlet passageway and control oxygen flow is set on the described gas circuit valve body; Described gas circuit valve body be connected with the electronic flowmeter that the orifice plate gas circuit constitutes by micro-pressure sensor, described electronic flowmeter is connected with intelligent controller.
Said orifice plate gas circuit comprises the gas circuit seat body; Inlet channel and outlet passageway are set in the gas circuit seat body; On said inlet channel and outlet passageway, be provided with the restricting orifice of throttle orifice, a pressure air flue that is connected with micro-pressure sensor is set respectively on the air flue of restricting orifice both sides.
Described gas circuit seat body is by front and back two parts gas circuit pedestal be combined into, and the junction of front and back two parts gas circuit pedestal is provided with sealing ring, and restricting orifice is installed between two gas circuit pedestals.
Described intelligent controller comprises single-chip microcomputer, and the input of single-chip microcomputer connects micro-pressure sensor, its outfan display and status indicator lamp.
Described single-chip microcomputer also is connected with power down automated storage and voltage monitoring reset circuit.
The outfan of said single-chip microcomputer also is connected with buzzer.
Adopt this utility model of technique scheme, owing to adopted electronic flowmeter and micro-computer technology, except all functions with compatible float type oxygen inhalation apparatus, new function below also having realized:
(1) numeral shows oxygen flow and oxygen concentration, has solved the problem that can not show oxygen concentration;
(2) add up oxygen therapy time and science automatically and calculate oxygen consumption and demonstration at any time, for reasonable fee provides scientific basis;
(3) can set oxygen flow and transfinite scope: too small (unexpected obstruction, the leakage) of flow and excessive (bleed pressure is uprushed) are pulled alert prompting automatically in the oxygen therapy process, have effectively prevented the generation of contingency;
(4) set the oxygen therapy time: alarm automatically after the stipulated time has prevented that excessive oxygen therapy from causing oxygen intoxication;
(5) power-failure memory: can remember various setting values and when oxygen therapy and oxygen consumption etc. after the outage automatically, easy to use and reliable;
(6) easy for installation: setting angle is unrestricted, can tilt install and does not influence the accuracy that flow shows, has solved the flow error that causes when the installation site is inaccurate.
Description of drawings
Fig. 1 is prior art constructions figure.
Fig. 2 is the profile sketch map of this utility model.
Fig. 3 is the structure chart of this utility model.
Fig. 4 is Fig. 3 aperture plate gas circuit cutaway view.
Fig. 5 is an intelligent control instrument theory diagram in this utility model.
Fig. 6 is intelligent control instrument circuit theory diagrams in this utility model.
The specific embodiment
Like Fig. 2, Fig. 3, shown in Figure 4; This utility model comprises wetting bottle 15 and the gas circuit valve body 12 that combines with wetting bottle; The control valve 13 of the air source inlet joint 2 that is connected with inlet channel 22, the oxygen outlet joint 14 that is connected with outlet passageway 21 and control oxygen flow is set on the gas circuit valve body 12; Gas circuit valve body 12 be connected with the electronic flowmeter that orifice plate gas circuit 3 constitutes by micro-pressure sensor 4, above-mentioned electronic flowmeter is connected with intelligent controller.
Orifice plate gas circuit 3 comprises gas circuit seat body 16; Inlet channel 22 and outlet passageway 21 are set in gas circuit seat body 16; On inlet channel 22 and outlet passageway 21, be provided with the restricting orifice 19 of throttle orifice; A left pressure air flue that is connected with micro-pressure sensor 17 and right pressure air flue 18 are set respectively on the air flue of restricting orifice 19 both sides; Micro-pressure sensor 4 is inserted into two through two joints that carry and connects in the air flue hole and fixed sealing, and electronic flowmeter is connected with gas circuit valve body 12 with shell 7 through gas circuit seat body 16; Above-mentioned inlet channel 22 is connected with source of the gas through air intake duct, the oxygen outlet joint 14 of processing in the gas circuit valve body 12, and said outlet passageway 21 is connected with wetting bottle 15 through the gas off-take of processing in the gas circuit valve body 12.
For ease of processing, gas circuit seat body 16 is by front and back two parts gas circuit pedestal be combined into, and the junction of front and back two parts gas circuit pedestal is provided with sealing ring 20, and restricting orifice 19 is installed between two gas circuit pedestals.
More specifically, micro-pressure sensor 4 is fixed on the orifice plate gas circuit 3, the signal of telecommunication of its output is connected to through cable on the circuit board of single-chip microcomputer 6, and orifice plate gas circuit 3 is fixed on the gas circuit valve body 12 through screw.Intelligent control instrument is made up of for core single-chip microcomputer 6, and display 8 is fixed on through screw on the circuit board of single-chip microcomputer 6, connects through cable between the two, and buzzer 5 directly is welded on the circuit board of single-chip microcomputer with display lamp 10.Button 11 is for to be embedded in the Thin-film key on the panel 9, and panel 9 is inlaid in meter case 7 front portions through screw, the display 8 and display lamp 10 of corresponding its back of top clear film window; Be used for fixing screw that panel 9 stretches out backward simultaneously as the hold-down screw that the single chip microcomputer circuit board is installed, button 11 is drawn plug and is connected to the single chip circuit plate through cable; DC power supplier is connected to the single chip microcomputer circuit board in the meter housing through power line; All parts are installed in the meter housing except panel and power supply, and instrument housing is pressed abd fixed between orifice plate gas circuit 3 and the gas circuit valve body 12.Gas circuit valve body 12 in this utility model supports as the middle part of product, mainly plays the gas circuit interconnect function, and parts such as oxygen intake joint 2, flow control valve 13, relief valve and oxygen outlet joint 14 have been installed above; Gas circuit valve body 12 upper ends directly are connected with meter housing and orifice plate gas circuit, and the lower end directly is connected with wetting bottle; At foot, its upper end directly is connected with the gas circuit valve body wetting bottle as the part of product gas circuit, and 1 is power supply among the figure.
On circuit theory constitutes; As shown in Figure 5; Intelligent controller comprises single-chip microcomputer 6; The input of single-chip microcomputer 6 connects micro-pressure sensor 4 through instrument amplifier, its outfan display, status indicator lamp and buzzer 5, and button 11, power down automated storage and voltage monitoring reset circuit, voltage-stabilized power supply circuit are connected with the corresponding interface of single-chip microcomputer 6; Above-mentioned single-chip microcomputer 6 is for containing the microprocessor of A/D converter.
Wherein micro-pressure sensor is integrated, highly sensitive miniature Silicon pressure sensing and element, and two blind pores are arranged, and can detect pressure differential small between two pores, and difference is converted into the linear voltage output of direct ratio.This device is serial commercially produced product.Its effect invasion is said, is to convert the pressure differential that oxygen flow produced that flows through in the orifice plate gas circuit to voltage signal.Instrument amplifier is the whole low drift precision instrument operation amplifier circuit of Gain Adjustable, is used for the voltage signal of micro-pressure sensor output is amplified to suitable value, so that subordinate's conversion of signals is used.Single-chip microprocessor system is that 8 chip microprocessors and outside oscillating crystal of having A/D converter, data RAM and program ROM by inside etc. constitutes.Effect is to accept data and signal through its external interface, outputs to unit such as display, buzzer and display lamp after calculating, handling.Display is commercial intelligent display module, has LCDs and decoding scan drive circuit to constitute, and can accept the digital signal of single chip microcomputer, demonstrates numbers and symbols.Its effect is to be used for showing information such as flow, oxygen concentration, time, oxygen consumption and setting value.Display lamp in display lamp and the buzzer is made up of a plurality of light emitting diodes, is used for indicating power supply status, instrument mode and alarm lamp etc.; Buzzer is the piezoelectric ceramic piece that adds behind the outer package, and whether point out button to press with the sound effective, also is used for sending the sound indication when reporting to the police.Keyboard is to be made up of several thin film touch key-presss, be used for the input operation personnel the selection signal with set flow and timing parameters etc.The switching value signal that it sends is delivered directly to the chip microprocessor interface.Automatic bin of power down and voltage monitoring reset circuit are the automatic bin circuit of the integrated automatic power down of monolithic, and protected data automatically when losing power supply is taken out when powering on automatically.Also have voltage monitoring and reliable reset circuit simultaneously.Its effect is the reliable reset that guarantees single-chip microprocessor system, is to preserve variable and setup parameters such as oxygen therapy time, oxygen consumption in power down.Voltage-stabilized power supply circuit is made up of isolated AC/DC supply convertor and integrated stable voltage circuit etc., and its effect provides D.C. regulated power supply.
As shown in Figure 6: U1 is that display apparatus module, FMQ are buzzer; U1 is made up of LCDs and intelligent controller circuit, and display screen can show 4-digit number, three arithmetic point and seven prompts.Module externally has 12 signal pins, and except/IN and/RD do not draw the use, other pins are useful connection; + the P2.1 of P1.3 through resistance R 6 to IC1 that receive B2 controls brightness backlight and bright time backlight ,-meet GND; / BZ and BZ are respectively the positive and negative drive end of buzzer FMQ; V+ is a modular power source input anode; GND is the modular power source negative terminal; C5 is the power filtering capacitor of U1; V-receives positive supply for showing contrast adjustment end through resistance R 5; DA is that data serial writes end, meets the P3.0 of chip IC 1; / WR is that data write clock signal, and/CS is the module chip selection signal, and WR and/CS meet P2.3 and the P2.2 of IC1 respectively through pull-up resistor RP1.6 and RP1.7, and low level is effective; Chip IC 1 can through position/CS ,/WR and DA be transferred to U1 with video data and the serial of buzzer switch signal.
U2 is the micro-pressure sensor module among the figure, and micro-pressure sensor module U2 has four pins, and wherein V+ and GND are the positive-negative power end; OUT+ is the output voltage signal anode, receives the positive input terminal IC2.3 of IC2; OUT-is the output voltage signal negative terminal, receives the negative input end IC2.2 of chip IC 2; Potentiometer RW1 and resistance R 2 series connections are formed the checking for zero circuit of micro-pressure sensor module U2 at OUT-and power supply negative terminal, and when the draught head of micro-pressure sensor module U2 acceptance was zero, regulator potentiometer RW1 made the OUT current potential be not less than OUT-.
U3 is that DC power supplier, IC4 are the three-terminal voltage-stabilizing circuit, and the AC1 of DC power supplier U3, AC2 are the alternating current 220V input, and DC+ and DC-are respectively the positive and negative terminal of the dc source of output; DC-is the negative terminal of system power supply; To the input Vin of three-terminal voltage-stabilizing IC circuit 4, output+5V voltage is as the power supply anode of system after 4 voltage stabilizings of three-terminal voltage-stabilizing IC circuit after DC+ process inductance I1 and the electric capacity E1 filtering, and label is designated as VCC; It is to reduce power supply ripple that E2 is connected on the effect of power supply positive and negative terminal.
IC2 is an instrument amplifier, and IC2 has 8 pins, is designated as IC2.1 ~ IC2.8, and IC2.3 and IC2.2 are respectively the positive and negative terminal of signal input; IC2.7 and IC2.4 are respectively the positive and negative terminal of power supply input; IC2.1 and IC2.8 are gain amplifier adjustment end, are connected with gain adjustment resistance R 1; IC2.5 connects negative supply for the output reference edge; IC2.6 is the amplifying signal outfan, through receiving the P1.6 of IC1 after 3 filtering of filtering signals ripple capacitor C, when selecting the R1 of different resistances for use, can make instrument amplifier IC2 obtain the gain amplifier from 1 ~ 1000.
IC1 is 8 single-chip microcomputers, and IC1 inside has 10 A/D converters, is used for data acquisition, and the 128B data RAM is used for data computation, and 12KB OPT program storage is used to deposit program, and inner six 16 bit timing devices can be used for timing; There are 28 pins the outside, and wherein VDD and GND are the positive-negative power end, and C4 is a power filtering capacitor; RST is not the reset signal end, receives reset circuit; X1 and X2 are connected to crystal Q1, capacitor C 1 and C2 constitutes outer clock circuit, clock when being used for system clock and intervalometer accurate of IC1; P1.0 ~ P1.3 is the push button signalling input interface; P2.6, P2.7, P3.0, P2.0 drives the display lamp interface for output; P3.5 is the output signal, connects the chip selection signal of IC3; P3.4 is for exporting the input end of clock that signal meets IC3, and P3.3 connects the data input and output side of .IC3 as input and output; P1.4, P1.6 and P1.7 are delivery outlet, connect respectively display module /CS ,/WR and DA end; P1.6 is set to the input of A/D converter in the IC1 sheet, receives the analog output signal IC2.6 of instrument amplifier IC2.
IC3 is power down automated storage and voltage monitoring circuit, and IC3 has 8 pins, and wherein VDD foot and GND foot are power supply; The RECALL foot is the supply voltage monitor input terminal, and system power supply VCC receives on VDD and the RECALL through Zener diode Z1, and E3 is an energy-storage capacitor; Be connected on VDD and power supply negative terminal; The effect of Z1 is that IC3 usefulness is only supplied with in the energy storage that the dwarf demonstrate,proves E3 when system power supply loses, and selects suitable electric capacity E3 capability value, and IC3 has time enough to preserve data in the time of can guaranteeing that system power supply loses; The CE foot is that sheet selects input, and the SK foot is an input end of clock, and DO and DI are respectively data output and data input pin, and these four signal ends are respectively with the position mouth of IC1 and link to each other, and under certain clock signal effect, can carry out exchanges data with IC1; The AS foot is exportable reset signal when electrification reset, and the phase inverter of forming through transistor P1, resistance R 4 and R3 is to the RESET input RST of IC1, and assurance IC1 mouth is by resetting.
K1, K2, K3, K4 are button, and the end of K1 ~ K4 links to each other with the system negative supply, and the other end is connected to four bit ports of IC1 respectively; When pressing, button produces low level; On the row of drawing resistance R P1 be 6 groups of encapsulation row's resistance, its public termination power positive end, its grouping termination IC1 port; Draw current potential in the formation, effect is the stability that guarantees the input and output state.
L1 ~ L5 is a display lamp; The anode of five display lamps is received power positive end through current limliting row resistance R P2; RP2 plays metering function here; Negative terminal is except the direct negative supply of L5 place, and the negative terminal of L1 ~ L4 is received four output ports of single-chip microcomputer IC1 respectively, makes their luminance be controlled by the port of single-chip microcomputer IC1.
Claims (6)
1. medical oxygen therapy monitor; It comprises wetting bottle (15) and the gas circuit valve body (12) that combines with wetting bottle; Described gas circuit valve body (12) is gone up the control valve (13) that the air source inlet joint (2) that is connected with inlet channel (22), the oxygen outlet joint (14) that is connected with outlet passageway (21) and control oxygen flow are set; It is characterized in that: described gas circuit valve body (12) is connected with the electronic flowmeter that is made up of micro-pressure sensor (4) and orifice plate gas circuit (3), and described electronic flowmeter is connected with intelligent controller.
2. medical oxygen therapy monitor according to claim 1; It is characterized in that: said orifice plate gas circuit (3) comprises gas circuit seat body (16); Inlet channel (22) and outlet passageway (21) are set in gas circuit seat body (16); On said inlet channel (22) and outlet passageway (21), be provided with the restricting orifice (19) of throttle orifice, a pressure air flue (17,18) that is connected with micro-pressure sensor is set respectively on the air flue of restricting orifice (19) both sides.
3. medical oxygen therapy monitor according to claim 2; It is characterized in that: described gas circuit seat body (16) is by front and back two parts gas circuit pedestal be combined into; The junction of front and back two parts gas circuit pedestal is provided with sealing ring (20), and restricting orifice (19) is installed between two gas circuit pedestals.
4. medical oxygen therapy monitor according to claim 1 is characterized in that: described intelligent controller comprises single-chip microcomputer (6), and the input of single-chip microcomputer (6) connects micro-pressure sensor (4), its outfan display and status indicator lamp.
5. medical oxygen therapy monitor according to claim 4 is characterized in that: described single-chip microcomputer (6) also is connected with power down automated storage and voltage monitoring reset circuit.
6. medical oxygen therapy monitor according to claim 4 is characterized in that: the outfan of said single-chip microcomputer also is connected with buzzer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200344797U CN202459688U (en) | 2012-02-03 | 2012-02-03 | Medical oxygen delivery monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200344797U CN202459688U (en) | 2012-02-03 | 2012-02-03 | Medical oxygen delivery monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202459688U true CN202459688U (en) | 2012-10-03 |
Family
ID=46907892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200344797U Expired - Fee Related CN202459688U (en) | 2012-02-03 | 2012-02-03 | Medical oxygen delivery monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202459688U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105664317A (en) * | 2016-03-18 | 2016-06-15 | 江苏巨贸医疗设备有限公司 | Intelligent passive oxygen supply and humidifying device used for oxygen making machine and oxygen supply system |
-
2012
- 2012-02-03 CN CN2012200344797U patent/CN202459688U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105664317A (en) * | 2016-03-18 | 2016-06-15 | 江苏巨贸医疗设备有限公司 | Intelligent passive oxygen supply and humidifying device used for oxygen making machine and oxygen supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20160203 |