CN1708326A - Method and system for delivery of therapeutic gas to a patient and for filling a cylinder - Google Patents
Method and system for delivery of therapeutic gas to a patient and for filling a cylinder Download PDFInfo
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- CN1708326A CN1708326A CN 200380102014 CN200380102014A CN1708326A CN 1708326 A CN1708326 A CN 1708326A CN 200380102014 CN200380102014 CN 200380102014 CN 200380102014 A CN200380102014 A CN 200380102014A CN 1708326 A CN1708326 A CN 1708326A
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- 230000001225 therapeutic effect Effects 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims description 16
- 238000012360 testing method Methods 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 310
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 49
- 239000001301 oxygen Substances 0.000 claims description 49
- 229910052760 oxygen Inorganic materials 0.000 claims description 49
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- 239000003344 environmental pollutant Substances 0.000 claims description 19
- 231100000719 pollutant Toxicity 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 15
- 238000001179 sorption measurement Methods 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 210000004894 snout Anatomy 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002808 molecular sieve Substances 0.000 description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 230000004087 circulation Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 description 2
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002640 oxygen therapy Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A system for filling a portable cylinder with therapeutic gas, and providing therapeutic gas to a patient. Therapeutic gas delivery to a patient may be through a conserver, or may be in a continuous mode. Some embodiments of the invention may test the contents of the portable cylinder prior to filling. The specification also discloses a silent mode of operation where therapeutic gas is provided from the system by means of internal and/or external cylinders.
Description
Technical field
Embodiments of the invention relate to generation and can carry for the treatment gas of breathing usefulness to the patient.More particularly, embodiments of the invention relate to the system of generation to patient treatment gas of carrying and the portable cylinders of filling the use of flowing.
Background technology
The patient of multiple pneumonopathy and cardiovascular disease may need breathe therapeutic gas, so that obtain sufficient dissolved oxygen in their blood flow.Because these patients can lie in bed, treatment oxygen can be carried by portable cylinders.But portable cylinders only provides limited amount, therefore need regularly recharge.Though can conclude the business or recharge these gas tanks by the mode of health care service portion of commercial family, the patient has a system at home, this system carries out dual-use function: fill portable cylinders with oxygen therapy gas; And the treatment gas that is provided for breathing for the patient.These systems as " transmission-filling " system are known for everybody.
People's such as McCulloh U.S. Patent No. 5,858,062 (transfers Litton SystemsInc., therefore be called " Litton patent " hereinafter) announced a kind of system, in this system, atmosphere is applied to transformation absorption (PSA) system, thereby the content that increases oxygen is removed with nitrogen by the PSA system from air, for example reach about 90% or more than.In the Litton patent, the oxygen rich gas that discharges from the PSA system can be connected to patient's outlet and pressure intensifier.Before offering the patient, the adjustable in pressure of the concentrated gas that the PSA system provides joint (reducing in this case).Similarly, booster can increase the pressure of concentrated gas in the PSA system to be used for filling gas tank.Therefore, in the Litton patent, enriched gas product is divided into two shuntings (outlet in the Litton patent term) in the PSA system, and each shunting has identical pressure.The Litton patent has also been announced the use of the oxygen sensor that is used to detect the concentrated gas that leaves the PSA system.But the Litton patent has only been announced the oxygen content that detects the concentrated gas that leaves the PSA system, and the situation that oxygen content may be correct, does not comprise other deleterious chemicals and/or gas and can not detect enriched gas product.
People's such as Bowser U.S. Patent No. 6,393,802 (claiming " Bowser patent " hereinafter), disclosed a kind of concentrater, and it is applicable to patient and/or gas tank filling machine supply treatment gas, wherein controls the gas tank filling machine with automatic filling portable cylinders.Similar with the Litton patent, the Brower patent has announced first shunting that the enriched gas product from concentrater is divided into to be provided to compressor (its be used for then filling gas tank) and second shunting that provides to the patient (may by after the flow regulator).The Bowser patent had also been announced before filling gas tank, should measure the gas pressure of portable cylinders.If the gas pressure of portable cylinders is lower than predetermined minimum guard value, then do not fill gas tank.The Bowser patent points out that this may need, and may be in opening because have the gas tank of the pressure of very little residual gas, and the inside of gas tank may be contaminated.
Todd, Jr. U.S. Patent No. 6,446,630 (claiming " Todd patent " hereinafter), announced a kind of system, in this system, the concentrated gas stream that concentrater is discharged selectively flows to patient's (at least during suction part of patient), flows to the filling machine of gas tank remaining time.The Todd patent has also been mentioned and has been used the oxygen sensor test to discharge the concentrated gas that offers the patient from concentrater, although oxygen concentration level not to be discussed may be correct but the probability of other harmful gas may occur.
Therefore, this area needs a kind of method and related system of the gas of monitor treatment more nearly.In addition, need a kind of method and related system that treatment gas more effectively is provided for the patient.
Summary of the invention
By a kind of method and system, can solve the above-mentioned problem to a great extent to patient's delivering therapeutic gas and filling gas tank.An exemplary embodiment can be a kind of transmission-fill system, and this system comprises booster (thereby the pressure that is used to be increased in the treatment gas that booster import department provides produces the stream of therapeutic gas of compression); The conservator (conserver) that is connected in the stream of therapeutic gas of compression (is used for supplying with doses treatment gas during the patient sucks; Be connected in the patient ports (being used for providing the treatment gas of this dosage) of conservator to the patient; And cylinder connector (being used for portable cylinders is connected in the stream of therapeutic gas of compression).Transmission-fill system itself can be used for providing treatment gas so that fill portable cylinders to cylinder connector, provides treatment gas by conservator to the patient simultaneously.
In other exemplary embodiment, before filling, can test the gas tank that is connected and whether have pollutant to measure.In certain embodiments, if there are pollutant, so can be by the find time gas tank that connected of the compressor that attaches to concentrater.In other embodiment, can utilize effusion meter to carry to the patient in a continuous manner from the treatment gas of carrying such as the source of the gas of concentrater.In these embodiments, can measure the continuous flow of effusion meter and set, and the dosage that the setting of this mensuration can be used to set by conservator is supplied with.
In other embodiment, extra therapeutic gas cylinders can be provided, when inoperation concentrater and/or booster, provide treatment gas to the patient, and therefore operation can be noiseless substantially by these extra gas tanks.
Disclosed apparatus and method comprise the combination of the feature and advantage of the shortcoming that can overcome prior-art devices.After the detailed explanation, above-mentioned various characteristics and other features are conspicuous for one of ordinary skill in the art below reading with reference to the accompanying drawings.
Description of drawings
In order to describe the preferred embodiments of the present invention in detail, now with reference to following accompanying drawing, wherein:
Fig. 1 illustrates the system that is used to fill portable cylinders according to some embodiment at least of the present invention;
Fig. 2 illustrates the transmission-fill system according to some embodiment at least of the present invention;
Fig. 3 illustrates the transmission-fill system with continuous supply capacity according to some embodiment at least of the present invention; And
Fig. 4 illustrates according to the cutaway view of the example effusion meter of some embodiment structure at least of the present invention.
Symbol and term
Use some term to refer to specific system component in whole description below and claims.This text is not intended to distinguish the title difference and the identical parts of function.
In below the discussion and claims, term " comprises " and " comprising " is used for open form, therefore is construed as " includeing but not limited to ... ".And term " connection " means indirectly or directly and connects.Therefore, if first device is connected to second device, this kind connection may be direct connection so, also may be to be connected with the indirect of joint by other devices.
The specific embodiment
Fig. 1 illustrates the system of the filling portable cylinders of at least some embodiment according to the present invention.For example, device as shown in Figure 1 can use at patient's family, is used for the use of flowing to fill the portable oxygen gas tank.Especially, system 100 can comprise concentrater 10.Concentrater 10 can be any suitable device, and this device is used to increase the oxygen content of the treatment gas of carrying to the patient.For example, concentrater 10 can be transformation absorption (PSA) system, and this system has the molecular sieve bed that turns round with parallel relation in a large number.The atmosphere that extracts from air intlet 12 can be extracted or aspirate with pump from first molecular sieve bed, and nitrogen molecular is trapped herein, and oxygen and argon molecule flow into substantially without restriction.By remove denitrification from atmosphere, the oxygen content in the gas of sifting bed discharging may be quite high, for example 90% oxygen or higher.The gas that leaves pressure swing adsorption system can be referred to as oxygen rich gas or concentrated gas.Term treatment gas not only can comprise the oxygen rich gas that leaves pressure swing adsorption system, and can comprise from the gas such as the height treatment oxygen content in other sources in liquid oxygen source.When a molecular sieve bed is used for filter nitrogen, the part that second molecular sieve bed can use treatment gas as reflux gas with trapped nitrogen discharge in atmosphere, and be this bed of operation preparation in the future.Though pressure swing adsorption system is a preferred systems, can use any device or the system that can make or transmit treatment gas.
For preferred pressure swing adsorption system, the gas pressure that leaves concentrater 10 can be at the order of magnitude of 5 to 40 pounds per square foots (PSI).In order to force treatment gas to enter portable cylinders, for example portable cylinders 14, need to increase the pressure of treatment gas.Therefore, in certain embodiments, the treatment gas that leaves concentrater 10 can be fed to booster 16 by conduit 18.Booster 16 can be any device that can obtain treatment gas and increase pressure under first pressure.In fact, booster 16 can be any available or improved the compressor of type afterwards.Booster 16 increases air pressure to the therapeutic gas system of about 2200PSI with the formation compression.The compression treatment gas can via conduit 20 and 22 and cylinder connector 21 flow in the gas tank 14.Cylinder connector 21 can be any suitable device that is used for portable cylinders is connected in system 100, or in the system that this description is discussed any.When filling full portable cylinders 14, system 100 can shut-down operation, and this can determine by the pressure transducer or the pressure switch 24 that are connected in conduit 22.Perhaps, pressure switch 24 can be directly connected in portable cylinders 14.
Generally speaking, the system 100 that constitutes according to the embodiment of the invention can be drawn onto air in the concentrater 10 under atmospheric pressure.Concentrater 10 can be by removing the content that nitrogen increases oxygen.The treatment gas that leaves concentrater can offer the booster of energy increase pressure, and treatment gas can be provided to portable cylinders 14 at higher pressure.
Though the portable cylinders of storage treatment gas can comprise normal pressure usually, also has pollutant and enters into portable cylinders.For example, the patient may make portable cylinders open, and when pressure exhausted, pollutant may enter.In addition, the portable cylinders that is used for delivering therapeutic gas can be cleaned termly, and cleaning solution may stay as pollutant.According to the instruction of correlation technique, if pressure is lower than the default limit, 50PSI for example, gas tank should not filled when gas tank is contaminated.Yet the pollutant in the gas tank can produce pressure.Therefore, though the pressure in filling the Pretesting gas tank may provide some antipollution protections,, can fill the actual content of Pretesting gas tank at gas tank according at least some embodiment of the present invention.
Still with reference to figure 1, before planning to fill gas tank (and therefore may before concentrater 10 and booster 16 operations), can normal valve 26 (may automatically) gas sensing device 28 of being communicated with portable cylinders 14 fluids with placement.Pressure in the portable cylinders 14 makes gas move through conduit 22, conduit 30, blow vent 32, valve 26 and gas sensing device 28 that can test gas.
In alternative embodiment of the present invention, gas sensing device 28 can be a propagation time formula density sensor.U.S. Patent No. 5,060,514 have instructed and have been used for measurement gas current density and the therefore use of the propagation time formula density sensor of its purity.Be contained in this provisional application No.60/421 as a reference, 375 have also instructed according to formula density sensor of operable propagation time of the embodiment of the invention.If gas sensing device 28 is propagation time formula density sensors, the density of gas 14 can be the indication whether portable cylinders 14 exists pollutant so.
Though use oxygen selection pick off can provide the indication as the percentage composition of oxygen in gas, oxygen selects pick off can not detect the type and the existence of other possibility harmful gass.Equally for propagation time formula density sensor, only carry out the existence that density measure can not detection of contamination, particularly have under the situation of similar density to treatment gas at pollutant.Therefore, in certain embodiments, gas sensing device 28 can be the combination that oxygen is selected pick off and density sensor.In these embodiments, if oxygen selects the content of sensor determination oxygen greater than predetermined level, 85% oxygen for example, and density sensor is measured density, and (scope of expection is used for high oxygen content and the combination of most of argon in the scope of expection, it can strengthen gas products from pressure swing adsorption system), it is contaminated to think that then portable cylinders 14 does not have.It is like this too before even the initial pressure of gas tank is lower than as polluting the default limit of indication.On the other hand, if oxygen selects pick off indication oxygen in normal scope, but density sensor is not indicated normal reading, and this can be an indication, show be present in usually in the oxygen rich gas argon may other dangerous gases have replaced by some.Equally, if the content of oxygen sensor indication oxygen is lower than preestablished limit, no matter the result of density measure how, also cannot fill portable cylinders 14.
Therefore,, can and analyze determining whether filling portable cylinders 14 safely and whether the user can use safely the gas sample in the portable cylinders 14 according at least some embodiment of the present invention, and irrelevant with its initial pressure.
If gas sensing device 28 determines that portable cylinders 14 are contaminated before filling, at least some embodiment according to the present invention so, gas tank (being extracted into vacuum) can be found time to remove pollutant by system 100.Especially, can comprise compressor 11 in the concentrater 10 of pressure swing adsorption system form, its one side compressed air passes through sifting bed to force air, and can produce vacuum at the second aspect compressor, removes nitrogen in the sifting bed that can never move.If desired gas tank 14 is evacuated, can utilizes compressor 11 in concentrater 10 gas of from gas tank, finding time so.Especially, compressor 11 can be connected in oxygen tank 14 by conduit 33, valve 34 and conduit 36.The control system (not shown) can start compressor 11 and open valve 34 so that portable cylinders 14 produces vacuum.The step of pollutant of finding time from portable cylinders 14 can adopt various ways, and precise mechanism can depend on the type of pollutant.In some cases, be evacuated simply and remove free gas and can be enough to be used for removing pollutant.Under other situation, partially filled at least circulation of then finding time may be must be to wash away pollutant.After the partially filled at least circulation of then finding time of enough numbers, gas sensing device 28 can be measured pollutant and be removed, and portable cylinders can fill and be used for to flow and use.
Except before filling to the gas sample in the portable cylinders 14, also can be continuously according to the system 100 of the embodiment of the invention, perhaps termly, to the gas sample that produces by concentrater 10 and/or booster 16.Consider to have made the situation that portable cylinders 14 does not have the initial decision of pollution, concentrater 10 and booster 16 can move.By the location of selector valve 26, gas sensing device 28 can be to leaving the treatment gas sample of concentrater 10.If at any time gas sensor device 28 mensuration treatment gases are lower than purity limit and/or comprise pollutant, control system (not illustrating specially) can stop production and give the alarm.Equally, place by the selectivity of valve 26, gas sensing device 28 can be to leaving the treatment gas sample of booster.
Fig. 2 illustrates the conveying-fill system 200 of the alternative according to the present invention.Conveying-fill system 200 in Fig. 2 can produce treatment gas in the mode similar to system shown in Fig. 1.Conveying-fill system 200 can be used in the place of the gas source that can obtain medical treatment, for example in the hospital that oxygen can be provided to each room.In these cases, concentrater can omit from conveying-fill system 200.Therefore, conveying-fill system 200 can comprise concentrater 10 alternatively.Gas sensing device 28 can be checked portable cylinders 14 before filling.Equally, gas sensing device 28 can be checked the purity of treatment gas in course of normal operation.If find that portable cylinders 14 comprises pollutant, find that perhaps the treatment gas that is used for padding has polluted, conveying-fill system 200 can send suitable alarm and/or stop gas generation and/or conveying so.Conveying-fill system 200 also can have portable cylinders 14 evacuated abilities, although in order not make the accompanying drawing overcomplicated not shown in Figure 2 particularly.
In the embodiment shown in Figure 2, concentrater 10 and booster 16 provide the treatment gas of filling gas tank 14, provide treatment gas to the patient simultaneously.Especially, portable cylinders 14 can have connection actuator 40 thereon, and its pressure between about 20 to 25PSI provides the treatment gas from portable cylinders.The treatment gas of 20 to 25PSI scopes can be applied to conservator 42 then, and it is the pressure of adjustment of treatment gas further, and can also measure or predict patient's suction circulation and provide doses gas in the starting stage that the patient sucks.People's such as Tiep U.S. Patent No. 4,612,928th, the example of conservator technology, it can be used in an embodiment according to the present invention.
Disclosed each embodiment can adopt booster 16 in Fig. 1 and 2.As previously mentioned, booster 16 is actually compressor, has the piston-type compression chamber that air activates.For this reason, booster 16 can send audible sound.Equally, the compressor 11 of concentrater 10 (if existence) can send audible sound.Between the operating period on daytime when the patient wakes, the noise of the compressor 11 of booster 16 and/or concentrater may not be a problem.Yet between the operating period at night, but the noise of the level of audible that is produced by conveying-fill system 200 will disturb the patient.In order to handle potential noise problem of hearing, the present invention can have noiseless substantially operator scheme, and it can be used in night and not exist in the noise problem that can hear needing delivering therapeutic gas.
With reference to figure 2, conveying-fill system 200 can comprise gas tank 44 alternatively again.Gas tank 44 can be inner or outside at conveying-fill system 200, and also comprise a plurality of inside or external gas cylinders or their combination.The volume of gas tank 44 can be than portable cylinders 14 big.During operation, the combination of concentrater 10 and booster 16 can be filled gas tank 44.The filling of gas tank 44 can take place simultaneously with the filling of portable cylinders 14, when also can occur in portable cylinders 14 and disconnect, and/or also can occur in by actuator 40 and conservator 42 when the patient provides treatment gas from conveying-fill system 200.Gas tank 44 preferably has enough volumes to supply the treatment gas of several hrs to the patient, for example whole evening.Therefore, during gas tank 44 (also may portable cylinders 14) was filled, concentrater 10 and booster 16 can conductive pipe 20 provide the treatment gas of compression.Treatment gas can flow through valve 46, flows in the gas tank 44 by valve 48 and conduit 50 then.Valve 46 can be a check-valves.If do not want gas tank 44 is filled, can shut off valve 48.In the time of the noiseless action of needs of patients conveying-fill system 200 (and when gas tank 44 sufficient stored therapeutic gas), can close concentrater 10 and booster 16, and can shut off valve 46, therefore allow stream of therapeutic gas in the gas tank 44 to cross valve 48 and conduit 50 and flow on the patient ports 41 via actuator 40 and conservator 42.In certain embodiments, gas tank 44 and portable cylinders 14 can be used for the treatment of the transmission of gas during noiseless action.When the pressure to actuator 40 supplies at least descends, show that gas tank 44 and/or portable cylinders 14 are to approach empty state, this pressure (for example by pressure switch 24) be can detect,, concentrater 10 and booster 16 opened for delivering therapeutic gas again.
With above-mentioned similar about the explanation of checking content in the portable cylinders 14, gas sensing device 28 also can be analyzed the gas in the gas tank 44 before filling, and also regularly or continuously analyzes treatment gas in the filling process of gas tank 44.Having than portable cylinders 14 bulky gas tanks 44 also provides conveying-fill system 200 to have the ability of quick filling portable cylinders 14.For illustrative purposes, suppose that shut off valve 48 and internal cylinder 44 are full or full substantially.In order to fill portable cylinders 14, the patient can select concentrater and supercharger to fill portable cylinders 14.The treatment gas that booster is left in use is filled may be slower, for example 2 liters/minute.The patient also can select quick filling, and the treatment gas that provide to gas tank 14 this moment can be only from gas tank 44, perhaps can be from the combination of concentrater and booster 16 and gas tank 44.The operation of in both cases any is all than there not being gas tank 44 supply treatment gases that the filling of portable cylinders 14 faster is provided.
Fig. 3 illustrates the another kind of embodiment of the present invention, and as providing the alternative of treatment gas from conservator to the patient, it can provide successive stream of therapeutic gas to the patient.Especially, conveying-fill system 300 shown in Figure 3 can comprise concentrater or source of oxygen 10 alternatively.Concentrater can be connected in booster 16 by valve 52.When valve 52 primary importance (in Fig. 3, not illustrating clearly), the treatment gas that leaves concentrater 10 can be connected in booster 16, is enhanced at this its pressure to be used for providing to gas tank 14 and actuator 40.In this operator scheme, similar with explanation about Fig. 2, can will be provided to patient ports 41 from the treatment gas of gas tank 14 and/or booster 16 by actuator 40 and conservator 42.Though Fig. 3 does not illustrate additional gas tank, for example the gas tank in Fig. 2 44 can exist equally.In second mode of operation, can make the treatment gas that leaves concentrater 10 (perhaps other source of oxygen) to be communicated in effusion meter 54 (this valve position is shown in Figure 3) by fluid by control valve 52.In this pattern, booster 16 does not provide stream of therapeutic gas.Effusion meter 54 can adopt any suitable form, but according to these embodiment of the present invention, effusion meter 54 is that the patient utilizes it can optionally set the device of the Continuous Flow of oxygen.For example, by the handle on the rotation flow meter 54 (not being shown specifically), the patient can select the scope of any possible Continuous Flow, for example 0.5 liter/minute to 5 liters/minute.Swing handle can change opening size in the stream of therapeutic gas so that required displaced volume to be provided.Therefore the control side of effusion meter 54 can be connected in the patient via patient ports 41.
Therefore, this embodiment shown in Figure 3 has two kinds of operator schemes: the user can select the continuous flow mode of flow volume; Supply with conservator by doses treatment gas can be provided in breathing process.Supply with though can set the continuous flow of effusion meter and the dosage of conservator 42 independently, at least some embodiment according to the present invention, the effusion meter Continuous Flow is set and can be measured by controller 56.Measure or measure the controller 56 of required continuous flow and can set the conservator flow based on continuous flow.For example, controller 56 can be set conservator and provide 16.5 milliliters dosage with 1 liter/minute the continuous flow of being set by the patient.Therefore, for 2 liters/minute continuous flow, controller can be set conservator may supply with 33 milliliters treatment gas dosage when the beginning of each suction.Like this, the patient only needs to carry out flow set.
Controller 56 can be any suitable control device, such as but not limited to, finish the microcontroller program of required task, the microprocessor of the program of complete required task, perhaps may other forms of module controller, for example programmable logic controller (PLC) (PLC).Controller 56 can be electrically connected on effusion meter 54 and conservator 42, as shown in the dotted line among Fig. 3.Though there be not clear and definite illustrating, controller also can be electrically connected on concentrater 10 (if existence), booster 16, pressure switch 24 (Fig. 2) and gas sensing device 28.In addition, controller 56 can be connected in valves different in the system and control their position, for example valve 26 (Fig. 1 and 2), valve 34 (Fig. 1), valve 46 and 48 (Fig. 2) and valve 52 (Fig. 3).Therefore, controller 56 can be controlled each in these devices, is used to transmit-independent operation of fill system.
Fig. 4 illustrates the cutaway view according to the effusion meter 54 of embodiment of the invention structure.Especially, effusion meter 54 has the entrance point 80 and the port of export 82.Entrance point 80 has flange 84, and the same port of export 82 has flange 86.Though Fig. 4 illustrates the flange on the entrance point 80 and the port of export 82, can use any suitable bindiny mechanism.Entrance point 80 can be communicated in snout cavity 88 by fluid.Equally, the port of export 82 can be communicated in outlet plenum 90 by fluid.Snout cavity 88 and outlet plenum 90 can be by passing cylindrical bar 92 fluid isolation of effusion meter 54 main bodys.Though clearly do not illustrate, can utilize packing ring, O shape ring or by the close tolerance between cylindrical bar 92 and flow 54 main bodys in the sealing between snout cavity and the outlet plenum by cylindrical bar 92.Can prevent fully that via O shape ring 94 and 96 the treatment gas in snout cavity 88 and the outlet plenum 90 from flowing out in air, cylindrical bar 92 can have the through hole or the opening of a plurality of different sizes.Especially, cylindrical bar 92 can have first opening 98 and second opening 99.In the embodiment show in figure 4, the axis of opening 98 can be perpendicular to the axis of opening 99; Yet, can use the opening of any number, the relation of their axis needn't be vertical.As shown in FIG. 4, opening 98 is orientated as and is allowed treatment gas to flow to outlet plenum 90 continuously from snout cavity 88.In the position shown in Fig. 4, any one in the import of opening 99 and the outlet or two main bodys that can be sealed in effusion meter 54 (though sealing does not illustrate clearly).In order to set the continuous flow of treatment gas, the patient can swing handle 102.Swing handle 102 for example can be placed on opening 99 treatment gas can connect the position of flowing through.The diameter of opening 99 can be bigger or less, and therefore the gas with various flow by effusion meter 54 is provided.Swing handle 102 needn't require to allow stream of therapeutic gas to cross only independent opening.In some positions, handle 102 can allow stream of therapeutic gas to cross opening 98 and 99.In this case, the continuous flow altogether by effusion meter 54 will be the combination by opening 98 and opening 99 flows.Though two openings 98 and 99 only are shown, but can use any amount of opening, these openings have different-diameter, and between their axis, have different angles, set with the control continuous flow thereby swing handle 102 can allow stream of therapeutic gas to cross one or more in these openings.
In the illustrative embodiment of Fig. 4, only the radial position of cylindrical bar 92 can be provided with one or more openings in the flow path of the Continuous Flow by effusion meter 54.In alternative of the present invention, also can vertical transitions cylindrical bar 92 by swing handle 102, and this vertical transitions (may combine with radial displacement) can be provided with opening other and/or varying dimensions in air-flow.In these alternative embodiments, the position finding circuit can also be measured the upright position of cylindrical bar 92 by any suitable device.
Fig. 3 also illustrates, and gas sensing device 28 needn't be as connecting as shown in Fig. 1 and 2.Especially, gas sensing device 28 can fluid be communicated in the therapeutic gas downstream of effusion meter 54, and its junction point also is the downstream of conservator 42.Though gas sensing device 28 can be operated continuously, at least some embodiment according to the present invention, that provide or when leaving the treatment gas of booster 16 by concentrater 10 when detecting, preferably per approximately 10 minutes of gas sensing device 28 is to gas sample.Per 10 minutes operating gas sensing devices 28 can prolong the service life of the various assemblies of gas sensing device 28, and can prolong the service life of selecting pick off such as the oxygen of zirconium oxide technology especially.When gas sensing device 28 connects as shown in FIG. 3,, may there be enough flows to be used for analyzing though treat gases to patient ports 41 supplies by conservator 42.Therefore, in these embodiments, system 300 can: perhaps switch to continuous flow mode (by the positioning of valve 42) momently to allow to be used for enough flows of operating gas sensing device 28; Perhaps obtain the enough time to allow operating gas sensing device 28 by the size that increases dosage from conservator 42.
Though Fig. 1 to 3 illustrates various embodiments of the invention, should note in alternative embodiment, can utilizing feature at other not shown any embodiment.For example, the compressor 11 with concentrater 10 of Fig. 1 circuit 33 that is connected in gas tank 14 can be used among the embodiment shown in Fig. 2 and 3 equally.In addition, internal cylinder 44 equally can be with among the embodiment shown in Figure 3 shown in figure 2.In addition, gas sensing device 28 can fluid be communicated in the system among Fig. 1 and 2 or shown in Fig. 3.Each of these modification all drops in the spirit and scope of the present invention.
Usually with reference to institute's drawings attached, should be appreciated that each valve can be directly or indirectly by controller 56 controls, though in order not make accompanying drawing too complicated not at controller shown in all accompanying drawings.Therefore, the valve 26 of Fig. 1 can be by controller 56 controls, and this valve is selected test source by gas sensing device 28 from the outlet side of concentrater 10 or the outlet side of booster 16.Equally, the valve 52 of Fig. 3 can be directly or indirectly selectively be transposed by controller 56, this valve at continuous mode or the treatment gas that allows to leave concentrater 10 advance to selection operation in the booster 16.Can control by controller 56 at the valve 46 of closing during the noiseless action (valve 48 that can during noiseless action, open equally).
Above-mentioned explanation is intended to the explanation to various embodiments of the invention and principle.In case understand above-mentioned content fully, multiple for a person skilled in the art variants and modifications is conspicuous.Following claims are intended to comprise all such variants and modifications.
Claims (38)
1. transmission-fill system comprises:
Thereby the pressure that is used to increase the treatment gas that booster import department provides produces the booster of the stream of therapeutic gas of compression;
Be connected in the conservator of the stream of therapeutic gas after the adjusting, this conservator is used for supplying with the treatment gas of doses during the patient sucks; And
Be used for portable cylinders is connected in the cylinder connector of the stream of therapeutic gas of compression;
Wherein transmission-fill system is used for providing treatment gas to provide treatment gas by conservator to the patient simultaneously to fill portable cylinders to cylinder connector.
2. transmission-fill system as claimed in claim 1 further comprises:
Fluid is communicated in the gas sensing device of cylinder connector, and gas sensing device is used to survey the purity of treatment gas; And
Wherein transmission-fill system is used for allowing a part of gas of the portable cylinders that connected to flow to gas sensing device, if and wherein were lower than preestablished limit by gas purity in the gas tank of gas sensing device mensuration, transmission-fill system would stop to fill the portable cylinders that is connected.
3. transmission-fill system as claimed in claim 2, wherein gas sensing device further comprises oxygen specific (oxygen-specific) pick off.
4. transmission-fill system as claimed in claim 2, wherein gas sensing device further comprises density sensor.
5. transmission-fill system as claimed in claim 4, wherein gas sensing device further comprises the oxygen particular sensor.
6. transmission-fill system as claimed in claim 2 further comprises:
Be connected in the compressor of cylinder connector, compressor be used to the to find time content of the portable cylinders that connected; And
If wherein the purity of being surveyed by gas sensing device is lower than preestablished limit, the find time portable cylinders that connected of compressor.
7. transmission-fill system as claimed in claim 6 further comprises:
The concentrater of treatment gas is provided to booster; And
Wherein compressor is the part of concentrater.
8. transmission-fill system as claimed in claim 6, wherein the portable cylinders that is connected is filled after finding time.
9. transmission-fill system as claimed in claim 1 further comprises:
Be connected the effusion meter on the adjusting side of leading to patient ports, and wherein when when operation effusion meter the Continuous Flow of treatment gas is provided to the patient via patient ports;
Be connected the valve between treatment gas source and the booster, this valve optionally will be treated gas source and will be connected in effusion meter and the booster only one; And
Wherein Continuous Flow and the dosage by conservator supplied with one of of transmission-fill system utilization by effusion meter provides treatment gas to the patient.
10. transmission-fill system as claimed in claim 9 further comprises:
Be mechanically connected to the mensuration circuit of effusion meter, measure the flow set that circuit is used to survey effusion meter; And
Be electrically connected on the controller of measuring circuit and conservator;
Its middle controller is used for setting the dose volume of supplying with to the patient from conservator based on the flow set of effusion meter.
11. transmission-fill system as claimed in claim 1 further comprises:
Be connected in the gas tank of the stream of therapeutic gas of compression;
Wherein when booster did not turn round, transmission-fill system was used for providing treatment gas from gas tank.
12. transmission-fill system as claimed in claim 11, wherein gas tank is the gas tank of transmission-fill system inside.
13. transmission-fill system as claimed in claim 11, wherein gas tank is the gas tank of transmission-fill system outside.
14. transmission-fill system as claimed in claim 13, wherein gas tank is the portable cylinders that is connected in cylinder connector.
15. a method comprises:
The compression and low pressure stream of therapeutic gas is to form the stream of therapeutic gas of compression;
The first of stream of therapeutic gas that compression is provided is to fill gas tank; And
The second portion of stream of therapeutic gas that compression is provided with the form of the treatment gas of doses is to the patient.
16. method as claimed in claim 15 further comprises, at compression step with before step is provided, and the gas in the test gas tank.
17. method as claimed in claim 16, the gas of wherein testing in the gas tank further comprises the oxygen content of measuring gas in the gas tank.
18. method as claimed in claim 16, the gas of wherein testing in the gas tank further comprises the density of measuring gas in the gas tank.
19. method as claimed in claim 18, the gas of wherein testing in the gas tank further comprises the oxygen content of measuring gas in the gas tank.
20. method as claimed in claim 16 further comprises, if the gas in the gas tank comprises pollutant, then stops to fill gas tank.
21. method as claimed in claim 16 further comprises, if the gas in the gas tank comprises pollutant, and the content in the gas tank of then before filling, finding time.
22. method as claimed in claim 16 further comprises, based on the dose volume of setting treatment gas by the detected treatment gas of effusion meter continuous flow.
23. a system comprises:
The pressure that is used to increase the treatment gas that compressor inlet provides is with the compressor of the stream of therapeutic gas that produces compression;
Be connected in the gas tank of the stream of therapeutic gas of compression; And
Be connected in the conservator of the stream of therapeutic gas of compression, this conservator is used for supplying with the treatment gas of doses during the patient sucks;
Wherein when compressor did not move, system was used for providing treatment gas from gas tank.
24. system as claimed in claim 23 further comprises the concentrater that is connected in compressor, concentrater is used for providing treatment gas to compressor.
25. system as claimed in claim 24, wherein concentrater further comprises pressure swing adsorption system.
26. system as claimed in claim 23 further comprises the joint that is used for optionally gas tank being connected in system.
27. system as claimed in claim 26, wherein gas tank is a portable cylinders.
28. system as claimed in claim 23, wherein gas tank is the gas tank of internal system.
29. system as claimed in claim 28 further comprises the portable cylinders of the stream of therapeutic gas that is connected in compression, and wherein when compressor does not move, system is used for providing treatment gas from gas tank and portable cylinders.
30. system as claimed in claim 23, wherein compressor further comprises booster.
31. an equipment comprises:
Be used for obtaining treatment gas and increasing the booster of the pressure of treatment gas to second pressure that is higher than first pressure with first pressure;
Fluid is communicated in the fill port of the treatment gas that is in second pressure, and fill port is used for optionally being connected in the gas tank of filling by treatment gas;
Be connected in the gas sensing device of fill port, gas sensing device is used for surveying the content of gas tank gas before filling.
32. equipment as claimed in claim 31, wherein gas sensing device further comprises the oxygen particular sensor.
33. equipment as claimed in claim 31, wherein gas sensing device further comprises density sensor.
34. equipment as claimed in claim 33, wherein gas sensing device further comprises the oxygen particular sensor.
35. equipment as claimed in claim 31 further comprises:
Be connected in the compressor of cylinder connector, compressor be used to the to find time content of gas tank; And
If wherein the content of the gas tank of being surveyed by gas sensing device is not suitable for treatment and uses, the compressor gas tank of just finding time so.
36. equipment as claimed in claim 35 further comprises:
The concentrater of treatment gas is provided to booster; And
Wherein compressor is the part of concentrater.
37. a system comprises:
Have fluid and be communicated in the valve of the entrance point of the treatment gas source that is in first pressure, this valve has first outlet and second outlet, and wherein can optionally allow stream of therapeutic gas only in first and second export;
Fluid is communicated in the adjustable flow controller of first outlet, and the adjustable flow controller is used to produce the treatment gas Continuous Flow of selected flow;
Fluid is communicated in the booster of second outlet, and booster is used to produce the treatment gas that is in second pressure that is higher than first pressure;
Fluid is communicated in the conservator of the treatment gas that is in second pressure, and conservator is used for supplying with the treatment gas of doses during the patient sucks;
Fluid is communicated in patient's port of export of adjustable flow controller, and patient's port of export also fluid be communicated in conservator; And
Wherein the amount of the treatment gas of being supplied with by conservator is controlled by the selected flow of adjustable flow controller.
38. system as claimed in claim 37 further comprises:
Be electrically connected on the controller of adjustable flow controller and conservator; And
Its middle controller is used to measure the flow set of adjustable flow controller, and its middle controller is further used for setting based on the flow set of adjustable flow controller the amount of the treatment gas of being supplied with by conservator.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42137502P | 2002-10-24 | 2002-10-24 | |
| US60/421,375 | 2002-10-24 | ||
| US10/636,055 | 2003-08-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1708326A true CN1708326A (en) | 2005-12-14 |
| CN100482291C CN100482291C (en) | 2009-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801020144A Expired - Lifetime CN100482291C (en) | 2002-10-24 | 2003-10-07 | Method and system for delivery of therapeutic gas to a patient and for filling a cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100482291C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120054A (en) * | 2011-03-09 | 2011-07-13 | 广州军区广州总医院 | Portable respirator based on self-supply of oxygen |
| CN104645469A (en) * | 2015-02-04 | 2015-05-27 | 丁本增 | Noninvasive breathing apparatus |
| CN109350490A (en) * | 2018-10-11 | 2019-02-19 | 武汉三龙科技发展有限公司 | Full-automatic cardio-pulmonary resuscitation machine and CPR method |
-
2003
- 2003-10-07 CN CNB2003801020144A patent/CN100482291C/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120054A (en) * | 2011-03-09 | 2011-07-13 | 广州军区广州总医院 | Portable respirator based on self-supply of oxygen |
| CN104645469A (en) * | 2015-02-04 | 2015-05-27 | 丁本增 | Noninvasive breathing apparatus |
| CN109350490A (en) * | 2018-10-11 | 2019-02-19 | 武汉三龙科技发展有限公司 | Full-automatic cardio-pulmonary resuscitation machine and CPR method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100482291C (en) | 2009-04-29 |
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