CN109620237A - A kind of intelligence spirometer detection device and its application method - Google Patents
A kind of intelligence spirometer detection device and its application method Download PDFInfo
- Publication number
- CN109620237A CN109620237A CN201910060356.7A CN201910060356A CN109620237A CN 109620237 A CN109620237 A CN 109620237A CN 201910060356 A CN201910060356 A CN 201910060356A CN 109620237 A CN109620237 A CN 109620237A
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- China
- Prior art keywords
- spirometer
- motor
- push rod
- transparent gas
- detection device
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- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims description 13
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000012797 qualification Methods 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 210000004072 lung Anatomy 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000009325 pulmonary function Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003019 stabilising effect Effects 0.000 description 1
- 230000003519 ventilatory effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/091—Measuring volume of inspired or expired gases, e.g. to determine lung capacity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/15—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters specially adapted for gas meters
Abstract
The present invention provides a kind of detection devices of spirometer, it is characterised in that: including transparent gas receiver and push rod, the push rod is through inside transparent gas receiver, and the push rod front end is provided with the piston for horizontally slipping in transparent gas storage tube inner chamber；The transparent gas receiver left side is provided with escape pipe, the periphery side surface of the escape pipe is provided with external screw thread, the terminal helix of the escape pipe is arranged with the outlet nozzle for connecting the spirometer air inlet, outlet nozzle inner circumferential side surface is provided with the internal screw thread matched with the external screw thread, first sealing ring in the useful gap between sealing outlet nozzle and escape pipe in the periphery side surface of the escape pipe；The transparent gas receiver outer tube wall is equipped with scale strip；The configuration of the present invention is simple, it is convenient to operate, and can be realized and effectively carries out testing calibration to spirometer.
Description
Technical field
The present invention relates to the field of medical instrument technology, the detection device and its application method of especially a kind of spirometer.
Background technique
Lung capacity is the maximal ventilatory volume of respiration, reflects the potential ability of breathing function in a sense.It is existing
It is regular when in some schools, being student's progress body survey to will use spirometer, pulmonary function detection is carried out for student；
Lung capacity is detected, after can determine whether the property and degree and disease recovery that strong and weak, the certain breathing function of people's breathing function lowers
Labour capacity, it is clinical often to make with reference to being used.Electronic pneumono-meter is a kind of pulmonary function detection device of strong applicability, mainly
Including power supply, host, hose, funneling blow gun, such spirometer uses gas flow sensor.Due to carrying out lung capacity inspection
When survey, need user using electronic pneumono-meter that is funneling from blow gun forced expiration, and using in existing test, because using
Electronic inductor principle is different, manufacturer is different or even the spirometer of the same same model of brand, use some months
Afterwards, because external force strenuous vibration makes the reasons such as sensitive property reduction or the aging of inductor of inductor, the same person is caused to make
When being tested with different spirometers, the lung capacity numerical value of acquisition has several hundred milliliters of deviation, is not carrying out to spirometer
Under the operational circumstances of calibration, tester just directly carries out lung capacity detection, may result in the detection inaccuracy of lung capacity in this way,
The result of detection can not accurately react pulmonary status, so that also needing to carry out re-test, not only consume manpower and material resources, and
And process is cumbersome, inefficiency.
Summary of the invention
In order to overcome the problems referred above, the present invention provides a kind of detection device of spirometer and its application method, Neng Goushi
Testing calibration effectively now is carried out to spirometer, carrys out overcome the deficiencies in the prior art.
The present invention is realized using following methods: a kind of detection device of spirometer, it is characterised in that: including transparent storage
Inflator and push rod, the push rod is through inside transparent gas receiver, and the push rod front end is provided in transparent gas receiver
The piston that inner cavity horizontally slips；The transparent gas receiver left side is provided with escape pipe, and the periphery side surface of the escape pipe is set
It is equipped with external screw thread, the terminal helix of the escape pipe is arranged with the outlet nozzle for connecting the spirometer air inlet, described
Outlet nozzle inner circumferential side surface is provided with the internal screw thread matched with the external screw thread, the periphery side surface of the escape pipe it is useful in
Seal first sealing ring in gap between outlet nozzle and escape pipe；The transparent gas receiver outer tube wall is equipped with scale strip；It is described
Transparent gas receiver right end, which is provided with, pushes away device of air, and the device of air that pushes away includes a box body, offers in the push rod outer peripheral sidewall
External screw thread；It is provided with first bearing in the middle part of the interior left side of the box body, right flank middle part is provided with the second axis in the box body
It holds, a worm gear is provided in the box body, the push rod sequentially passes through first bearing, worm gear and second bearing and extends to outside box body
Portion；The cartridge upper surface offers an opening, and the open at one end is hingedly provided with display screen, so that display screen is foldable
It is set in opening；The upper right corner is provided with motor in the box body, and the output shaft of the motor is engaged with worm gear, in the box body
3rd bearing is provided on left side, the output shaft end of the motor is set to 3rd bearing inner ring；The box body inner underside
Face is provided with circuit board and the battery for circuit board power supply, and the battery is located at the lower right corner in the box body, the electric power storage
It is provided with charge port to charge the battery below pond, is provided with MCU on the circuit board, the MCU is connected with motor, charge and discharge
Circuit, display drive circuit and wireless communication module.
Further, the outlet nozzle is sleeve, is offered in the sleeve for being inserted into going out for spirometer air inlet pipe
Port, sleeve inner circumferential side surface is provided with the second sealing ring, and second sealing ring is set at the gas outlet.
Further, bore reduces to form funnel-form the outlet nozzle from right to left, so that the outlet nozzle is inserted into lung
In the air inlet pipe of meter living.
Further, handrail is provided with below the transparent gas receiver, the handrail upper end is half arc of opening upwards,
The transparent gas receiver is erected in half arc of the handrail upper end.
Further, the capacity of the transparent gas receiver is 500ml-5000ml.
Further, the box body lower surface is fixedly installed a holding handrail.
Steps are as follows for a kind of application method of the detection device of spirometer:
Step S1, start motor, motor reversal, the output shaft of motor drives worm gear, and worm gear drives push rod to move right, by gas
It is filled in transparent gas outlet；
Step S2, motor is closed, the quantity that staff shows by watching display screen works to confirm the amount for being filled with gas
Personnel record's numerical value is Q1；
Step S3, the escape pipe air inlet of outlet nozzle and spirometer is connected, starts motor, motor rotates forward, the output of motor
Axis drives worm gear, and worm gear drives push rod to be moved to the left, gas is filled in spirometer；
Step S4, after gas is all filled with spirometer, motor is closed, numerical value shown by spirometer is denoted as by staff
Q2；
Step S5, the numerical value of Q1 and Q2 are compared, if Q1=Q2, judge spirometer qualification.
In an embodiment of the present invention, the motor is stepper motor, and the turnning circle of the stepper motor and institute
It is corresponding to state inflator capability value；The back side of the display screen is provided with a camera, and the camera is connect with the MCU；It is described
Detection device further includes an APP being set on user mobile phone, and the APP has autosensing mode, according to following manner reality
It is existing:
Step S01: opening APP, prompts input test personnel identity information, after end of input, prompts collecting test personnel head
As information, the front camera that the APP then automatically opens mobile phone takes pictures to tester；
Step S02: test value is set on APP；
Step S03: the APP sends instructions to the wireless communication module by mobile phone according to test value；The wireless communication
The instruction received is transferred to the MCU by module, and the MCU then controls stepper motor rotation, push rod is allowed to push away corresponding gas
Enter tested spirometer；
Step S04: position locating for the tested spirometer of the camera acquisition current display numerical value and the piston
It sets, and is transferred to the APP；
Step S05: after the APP receives pictorial information, being analyzed and processed, obtain the display numerical value, transparent gas receiver and
Setting value is compared, to judge whether the spirometer is qualified.
In an embodiment of the present invention, in the step S02, multiple test values are set on APP；Each test value according to
It is carried out according to step S03 ~ step S05.
The beneficial effects of the present invention are: user can carried out before lung capacity detects to lung capacity in spirometer
Meter is detected, and makes spirometer when in use can be more accurate, can guarantee spirometer under high accurancy and precision to using
Person detects；Structure is simple, easy to operate, so that spirometer is more convenient precisely in use process, reduces medical treatment
The generation of accident；Guarantee sanitation and hygiene, it is time saving and energy saving, the working efficiency of operator is greatly improved, design is reasonable.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is circuit theory schematic diagram of the invention.
Fig. 3 is the use state diagram of outlet nozzle first embodiment.
Fig. 4 is the schematic diagram of internal structure of outlet nozzle first embodiment.
Fig. 5 is the use state diagram of outlet nozzle second embodiment.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
It please refers to shown in Fig. 1 and Fig. 2, the present invention provides an embodiments: a kind of detection device of spirometer, including it is saturating
Bright gas receiver 1 and push rod 2, the push rod 2 is through inside transparent gas receiver 1, and 2 front end of the push rod is provided with for saturating
The piston 3 that bright 1 inner cavity of gas receiver horizontally slips, so that can carry out judgement by the glide direction of piston 3 is filled with gas and releasing
Gas；1 left side of transparent gas receiver is provided with escape pipe 11, is used for air inlet and outlet, the peripheral side of the escape pipe 11
Surface is provided with external screw thread, and the terminal helix of the escape pipe 11 is arranged with the outlet for connecting the spirometer air inlet
Mouth 4, the 4 inner circumferential side surface of outlet nozzle are provided with the internal screw thread matched with the external screw thread, outlet nozzle 4 are passed through
Spiral is fixed on the end of escape pipe 11；The periphery side surface of the escape pipe 11 is useful in sealing outlet nozzle 4 and escape pipe 11
Between gap the first sealing ring 12 so that gas will not leak out；1 outer tube wall of transparent gas receiver is equipped with scale strip 13,
So that staff can judge gas flow by 13 position of scale strip where piston 3；1 right end of the transparent gas receiver setting
Device of air 5 is pushed away, the device of air 5 that pushes away includes a box body 51, for pushing air into spirometer, 2 periphery of push rod
External screw thread 21 is offered on side wall；It is provided with the outer ring first bearing 52(in the middle part of the interior left side of the box body 51 to fix, inner ring can
Rotation), right flank middle part is provided with the outer ring second bearing 53(and fixes in the box body 51, and inner ring is rotatable), the box body 51
It is inside provided with a worm gear 54, the push rod 2 sequentially passes through first bearing 52, worm gear 54 and second bearing 53 and extends to outside box body 51
Portion, so that push rod 2 can rotate under the drive of worm gear 54 in first bearing 52 and 53 inner ring of second bearing, to realize that left and right is moved
It is dynamic, it delivers the gas in spirometer；51 upper surface of box body offers an opening 55, and 55 one end of the opening are hingedly set
It is equipped with display screen 56, is set to so that display screen 56 is foldable in opening 55, display screen 56 can be shown in transparent gas receiver 1
Gas flow；The upper right corner is provided with motor 57 in the box body 51, and the output shaft 58 of the motor 57 is engaged with worm gear 54, so that logical
Cross the rotating forward or overturning of motor 57, the output shaft 58 of motor 57 just will drive the rotation of worm gear 54, worm gear 54 just will drive push rod 2 to
It moves left or moves right；3rd bearing 59,58 end of output shaft of the motor 57 are provided in the box body 51 on left side
End is set to the outer ring 3rd bearing 59(and fixes, and inner ring is rotatable) inner ring；The 51 inner underside face of box body is provided with 6 He of circuit board
For the battery 7 that circuit board 6 is powered, the battery 7 is located at the lower right corner in the box body 51, is arranged below the battery 7
The charge port (not shown) that promising battery 7 charges is provided with MCU on the circuit board 6, and the MCU is connected with motor, charge and discharge
Circuit, display drive circuit and wireless communication module.
It please refers to shown in Fig. 3 and Fig. 4, the outlet nozzle 4 is sleeve, is offered in the sleeve 4 for being inserted into lung capacity
The gas outlet 41 of air inlet pipe is counted, the 4 inner circumferential side surface of sleeve is provided with the second sealing ring 42, and second sealing ring 42 is set
It is placed at the gas outlet 41.The insertion gas outlet 41 that second sealing ring 42 can make the air inlet pipe of spirometer even closer
In, the second sealing ring 42 can prevent gas from leaking out.The diameter of second sealing ring 42 is less than spirometer air inlet pipe diameter,
The thickness of second sealing ring 42 is less than the thickness of spirometer air inlet pipe.
It please refers to shown in Fig. 5, bore reduces to form funnel-form the outlet nozzle 4 from right to left, in favor of the outlet nozzle 4
It is inserted into the air inlet pipe of spirometer.
Handrail 14 is provided with below the transparent gas receiver 1,14 upper end of handrail is half arc of opening upwards, described
Transparent gas receiver 1 is erected in half arc of 14 upper end of handrail.
The capacity of the transparent gas receiver 1 is 500ml-5000ml.So that detection accuracy is more accurate.
51 lower surface of box body is fixedly installed a holding handrail 8.So that when using the detection device, user of service
Hand can be held in hold handrail 8 on, can preferably stabilising arrangement be detected.
A kind of application method of the detection device of spirometer includes the following steps:
Step S1, start motor, motor reversal, the output shaft of motor drives worm gear, and worm gear drives push rod to move right, by gas
It is filled in transparent gas outlet；
Step S2, motor is closed, the quantity that staff shows by watching display screen works to confirm the amount for being filled with gas
Personnel record's numerical value is Q1；
Step S3, the escape pipe air inlet of outlet nozzle and spirometer is connected, starts motor, motor rotates forward, the output of motor
Axis drives worm gear, and worm gear drives push rod to be moved to the left, gas is filled in spirometer；
Step S4, after gas is all filled with spirometer, motor is closed, numerical value shown by spirometer is denoted as by staff
Q2；
Step S5, the numerical value of Q1 and Q2 are compared, if Q1=Q2, judge spirometer qualification.
In an embodiment of the present invention, the motor is stepper motor, and the turnning circle of the stepper motor and institute
It is corresponding to state inflator capability value；That is the scale value shape of the circle number of stepper motor rotation, the distance that push rod pushes and transparent gas receiver
It just can know that the back side of display screen described in inflator is provided with a camera according to the circle number that stepper motor rotates at corresponding relationship,
The camera is connect with the MCU；The detection device further includes an APP being set on user mobile phone, and the APP has
Autosensing mode is realized according to following manner:
Step S01: opening APP, prompts input test personnel identity information, after end of input, prompts collecting test personnel head
As information, the front camera that the APP then automatically opens mobile phone takes pictures to tester；
Step S02: test value is set on APP；
Step S03: the APP sends instructions to the wireless communication module by mobile phone according to test value；The wireless communication
The instruction received is transferred to the MCU by module, and the MCU then controls stepper motor rotation, push rod is allowed to push away corresponding gas
Enter tested spirometer；
Step S04: position locating for the tested spirometer of the camera acquisition current display numerical value and the piston
It sets, and is transferred to the APP；
Step S05: after the APP receives pictorial information, being analyzed and processed, obtain the display numerical value, transparent gas receiver and
Setting value is compared, to judge whether the spirometer is qualified.
In the step S02, multiple test values are set on APP；Each test value according to step S03 ~ step S05 into
Row.In the present embodiment, which can be detected automatically after connecting spirometer, and data and people to detection
The ID etc. of member's equipment is recorded, and has fully ensured that the reliability of spirometer to be detected.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, is all covered by the present invention.
Claims (9)
1. a kind of detection device of spirometer, it is characterised in that: including transparent gas receiver and push rod, the push rod is through saturating
Inside bright gas receiver, and the push rod front end is provided with the piston for horizontally slipping in transparent gas storage tube inner chamber；It is described transparent
Gas receiver left side is provided with escape pipe, and the periphery side surface of the escape pipe is provided with external screw thread, the end of the escape pipe
Screw-casing is equipped with outlet nozzle for connecting the spirometer air inlet, outlet nozzle inner circumferential side surface be provided with it is described
The internal screw thread that external screw thread matches, the useful gap between sealing outlet nozzle and escape pipe in the periphery side surface of the escape pipe
First sealing ring；The transparent gas receiver outer tube wall is equipped with scale strip；The transparent gas receiver right end, which is provided with, pushes away device of air,
The device of air that pushes away includes a box body, offers external screw thread in the push rod outer peripheral sidewall；In the middle part of the interior left side of the box body
It is provided with first bearing, right flank middle part is provided with second bearing in the box body, and a worm gear is provided in the box body, described
Push rod sequentially passes through first bearing, worm gear and second bearing and extends to box portion outside；The cartridge upper surface offers an opening,
The open at one end is hingedly provided with display screen, is set in opening so that display screen is foldable；The upper right corner in the box body
It is provided with motor, the output shaft of the motor is engaged with worm gear, is provided with 3rd bearing, the electricity in the box body on left side
The output shaft end of machine is set to 3rd bearing inner ring；Box body inner underside face be provided with circuit board and for circuit board power supply
Battery, the battery are located at the lower right corner in the box body, charging to charge the battery are provided with below the battery
Mouthful, it is provided with MCU on the circuit board, the MCU is connected with motor, charge-discharge circuit, display drive circuit and channel radio
Believe module.
2. a kind of detection device of spirometer according to claim 1, it is characterised in that: the outlet nozzle is sleeve,
The gas outlet for being inserted into spirometer air inlet pipe is offered in the sleeve, it is close that sleeve inner circumferential side surface is provided with second
Seal, and second sealing ring is set at the gas outlet.
3. a kind of detection device of spirometer according to claim 1, it is characterised in that: the outlet nozzle is from right to left
Bore reduces to form funnel-form, in favor of in the air inlet pipe of outlet nozzle insertion spirometer.
4. a kind of detection device of spirometer according to claim 3, it is characterised in that: below the transparent gas receiver
It is provided with handrail, the handrail upper end is half arc of opening upwards, and the transparent gas receiver is erected at the handrail upper end
In half arc.
5. a kind of detection device of spirometer according to claim 4, it is characterised in that: the appearance of the transparent gas receiver
Amount is 500ml-5000ml.
6. a kind of detection device of spirometer according to claim 5, it is characterised in that: the box body lower surface is fixed
It is provided with a holding handrail.
7. a kind of a kind of application method of the detection device of spirometer as claimed in claim 6, which is characterized in that including with
Lower step:
Step S1, start motor, motor reversal, the output shaft of motor drives worm gear, and worm gear drives push rod to move right, by gas
It is filled in transparent gas outlet；
Step S2, motor is closed, the quantity that staff shows by watching display screen works to confirm the amount for being filled with gas
Personnel record's numerical value is Q1；
Step S3, the escape pipe air inlet of outlet nozzle and spirometer is connected, starts motor, motor rotates forward, the output of motor
Axis drives worm gear, and worm gear drives push rod to be moved to the left, gas is filled in spirometer；
Step S4, after gas is all filled with spirometer, motor is closed, numerical value shown by spirometer is denoted as by staff
Q2；
Step S5, the numerical value of Q1 and Q2 are compared, if Q1=Q2, judge spirometer qualification.
8. a kind of application method of the detection device of spirometer as claimed in claim 7, it is characterised in that: the motor is
Stepper motor, and the turnning circle of the stepper motor is corresponding with the inflator capability value；The back side of the display screen is provided with
One camera, the camera are connect with the MCU；The detection device further includes an APP being set on user mobile phone, institute
It states APP and has autosensing mode, realized according to following manner:
Step S01: opening APP, prompts input test personnel identity information, after end of input, prompts collecting test personnel head
As information, the front camera that the APP then automatically opens mobile phone takes pictures to tester；
Step S02: test value is set on APP；
Step S03: the APP sends instructions to the wireless communication module by mobile phone according to test value；The wireless communication
The instruction received is transferred to the MCU by module, and the MCU then controls stepper motor rotation, push rod is allowed to push away corresponding gas
Enter tested spirometer；
Step S04: position locating for the tested spirometer of the camera acquisition current display numerical value and the piston
It sets, and is transferred to the APP；
Step S05: after the APP receives pictorial information, being analyzed and processed, obtain the display numerical value, transparent gas receiver and
Setting value is compared, to judge whether the spirometer is qualified.
9. a kind of application method of the detection device of spirometer according to claim 8, it is characterised in that: the step
In S02, multiple test values are set on APP；Each test value is carried out according to step S03 ~ step S05.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060356.7A CN109620237B (en) | 2019-01-22 | 2019-01-22 | Intelligent spirometer detection device and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060356.7A CN109620237B (en) | 2019-01-22 | 2019-01-22 | Intelligent spirometer detection device and application method thereof |
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| Publication Number | Publication Date |
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| CN109620237A true CN109620237A (en) | 2019-04-16 |
| CN109620237B CN109620237B (en) | 2023-12-08 |
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ID=66063062
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4324127A (en) * | 1979-11-19 | 1982-04-13 | Biotrine Corporation | Spirometer calibration device and associated displacement detection system |
| US4448058A (en) * | 1982-07-02 | 1984-05-15 | Sensormedics Corporation | Respiratory gas analysis instrument having improved volume calibration method and apparatus |
| US5076093A (en) * | 1988-08-19 | 1991-12-31 | Jones Jr William C | Flow volume calibrator |
| US5473954A (en) * | 1993-03-11 | 1995-12-12 | Mh Custom Design & Mfg., L.C. | Apparatus for testing polymonary devices |
| US20120260717A1 (en) * | 2011-04-15 | 2012-10-18 | Honeywell International Inc. | Small volume prover apparatus and method for providing variable volume calibration |
| WO2017165761A1 (en) * | 2016-03-24 | 2017-09-28 | Eresearchtechnology, Inc. | Methods and systems for collecting spirometry data |
| US20180344209A1 (en) * | 2017-06-01 | 2018-12-06 | Nspire Health, Inc. | Apparatus and methods for calibrating and/or validating pulmonary function test equipment |
-
2019
- 2019-01-22 CN CN201910060356.7A patent/CN109620237B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4324127A (en) * | 1979-11-19 | 1982-04-13 | Biotrine Corporation | Spirometer calibration device and associated displacement detection system |
| US4448058A (en) * | 1982-07-02 | 1984-05-15 | Sensormedics Corporation | Respiratory gas analysis instrument having improved volume calibration method and apparatus |
| US5076093A (en) * | 1988-08-19 | 1991-12-31 | Jones Jr William C | Flow volume calibrator |
| US5473954A (en) * | 1993-03-11 | 1995-12-12 | Mh Custom Design & Mfg., L.C. | Apparatus for testing polymonary devices |
| US20120260717A1 (en) * | 2011-04-15 | 2012-10-18 | Honeywell International Inc. | Small volume prover apparatus and method for providing variable volume calibration |
| WO2017165761A1 (en) * | 2016-03-24 | 2017-09-28 | Eresearchtechnology, Inc. | Methods and systems for collecting spirometry data |
| US20180344209A1 (en) * | 2017-06-01 | 2018-12-06 | Nspire Health, Inc. | Apparatus and methods for calibrating and/or validating pulmonary function test equipment |
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| Publication number | Publication date |
|---|---|
| CN109620237B (en) | 2023-12-08 |
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