WO1995026212A1 - A method and an apparatus for training a patient to use an inhaler - Google Patents
A method and an apparatus for training a patient to use an inhaler Download PDFInfo
- Publication number
- WO1995026212A1 WO1995026212A1 PCT/SE1995/000315 SE9500315W WO9526212A1 WO 1995026212 A1 WO1995026212 A1 WO 1995026212A1 SE 9500315 W SE9500315 W SE 9500315W WO 9526212 A1 WO9526212 A1 WO 9526212A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- inhaler
- patient
- dose
- inhalation flow
- inhalation
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/0015—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors
- A61M2016/0018—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical
- A61M2016/0021—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical with a proportional output signal, e.g. from a thermistor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
- A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
- A61M2016/0039—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the inspiratory circuit
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/21—General characteristics of the apparatus insensitive to tilting or inclination, e.g. spill-over prevention
- A61M2205/215—Tilt detection, e.g. for warning or shut-off
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/82—Internal energy supply devices
- A61M2205/8206—Internal energy supply devices battery-operated
Definitions
- the present invention relates to a method and an apparatus for training a patient to use an inhaler.
- the inhalation flow must reach a certain critical limit. Since the patient cannot tell the difference between an inhalation containing a dose of a drug and an inhalation not containing any dose of the drug, it is difficult for him to know whether he has actually received his dose or not. Therefore, it is important that the patient learns how to use the inhaler correctly right from the beginning and also that he and his doctor can check his use of the inhaler occasionally.
- a first object of the present invention is to provide an apparatus for training a patient to use an inhaler correctly, this apparatus being inexpensive and easy to use and dispensing with the need of any assistance from trained personnel.
- a second object of the present invention is to provide a method for training a patient to use an inhaler correctly.
- the apparatus provides interactive directions for the correct use of an inhaler.
- the apparatus can be used by everyone without any assis ⁇ tance, since the use of it is self-explanatory. Each step to be performed is indicated to the patient in turn, and the inhalation flow is not measured until a correct acti- vation of the inhaler for making a dose available has been detected.
- the apparatus comprises an inhaler which is similar to the one the patient normally uses or will use so that the training is realistically performed.
- Fig 1 is a schematic view showing an embodiment of an apparatus according to the present invention
- Fig 2 is a block diagram, showing electronical compo ⁇ nents of the apparatus in Fig 1;
- Fig 3 is a flow diagram, showing the operation of the apparatus in Fig 1.
- a training apparatus substantially consists of an inhaler 1 and a box-shaped portable processing device 2, to which the inhaler is connected by a cable 3.
- the inhaler 1 is a Turbuhaler® inhaler, the substance container of which is empty or holds an ineffective sub- stance in the form of a dry powder. It has a replaceable mouthpiece 4 made of e.g. plastics, and a gripping ring 5, which is to be turned in order to make a dose available for inhalation.
- the processing device 2 On its upper side, the processing device 2 is pro- vided with a switch 6 for turning on the apparatus, and a plurality of light-emitting diodes 7-11 for indicating the different steps to be taken as well as the inhalation flow. Furthermore, there is a picture 12 of a Turbuhaler® inhaler with two arrows indicating how the inhaler is to be operated in order to make a dose available, and a picture 13 indicating inhalation through the inhaler. Furthermore, the training apparatus comprises means for detecting the activation of the inhaler in order to make a dose available for inhalation and for detecting the inhalation flow. Such means may be of the kind disclosed in EP 387 222 and will be briefly described in the follo- wing with reference to Fig. 2.
- a microphone 16 is arranged in the inhaler 1 close to an inhalation channel (not shown) therein.
- the microphone 16 is connected to processing means in the processing device 2 by the cable 3.
- the microphone 16 detects the characteristic click sound created when the gripping ring 5 is turned, as well as the sound of the airflow at an inhalation. These sig ⁇ nals are transferred to the processing device 2 via the cable 3.
- a first branch 14 of the processing device which is adapted to process the click sound, comprises a rectifier 24 which rectifies the click sound signal.
- the rectifier 24 is connected to an amplifier 25, which amplifies the rectified signal to about 1 V.
- the amplified signal is input into a puls stretcher 26, which stretches the ampli ⁇ fied signal to a signal which can be recorded as a valid activation of the inhaler in a processor 27.
- a second branch 15 of the processing device which is adapted to process the inhalation flow signal, comprises a band pass filter 18, which passes a signal within a limi ⁇ ted frequency range.
- the filtered signal is input into an amplifier 19, which amplifies the signal to about 1 V.
- the amplified signal is rectified and low-pass filtered in a detector 20 so that the envelope of the signal is obtai- ned.
- the envelope signal which represents the momentary inhalation flow, is A/D-converted in a A/D-con- verter 22 before being input into the processor 27.
- the processor 27 In addition to the inputs from the first and second branches 14, 15, the processor 27 have outputs to the LED's 7-11 on the upper side.
- the processor 27 detects (step 30) that the training apparatus has been turned on by the pressing of the switch 6, it turns on all the LED's 7-11 for a short while and measures the battery voltage to check whether it is sufficient for performing one or more training cycles (step 31). If the battery is discharged, the processor 27 turns off the apparatus (step 32), whereas if the battery is sufficiently charged, the processor 27 turns on the LED 7 to indicate that the gripping ring 5 is to be turned in order to make a dose available (step 33).
- the pro ⁇ cessor receives a signal which represents a proper turning of the gripping ring 5 as detected by the microphone 16 (step 34), it turns off the LED 7 and turns on the LED 8 to urge the patient to inhale through the inhaler (step 35).
- the sound of the inhalation flow is detected by the micro ⁇ phone (step 36).
- the signal from the microphone 16 is pro ⁇ Registered in the second branch 15 and input into the pro- cessor 27, which determines the size of the inhalation flow (step 37) and turns on one or more of the LEDs 9-11, each LED corresponding to a different inhalation flow achieved.
- the first LED 9 may be turned on at an inhalation flow of 30 1/min, the second LED 10 at 40 1/min and the third LED 11 at 60 1/min.
- the processing device comprises a calibration switch arranged inside its cover.
- the calibration switch is operable from the outside of the cover by means of a magnetic element.
- the processor 27 turns on the first LED 9.
- the turning-on level of the first LED 9 can be set by feeding a flow corresponding to the desired turning-on level through the inhaler and, at the same time, pressing the switch 6.
- the processor turns off the first LED 9 and turns on the second LED 10, the level of which may now be set.
- the level of the third LED 11 may be set in the same way.
- the calibrated turning-on levels of the LEDs are stored in a non-volatile memory 28, from which they are fetched when the processor 27 determines which LED(s) to turn on for indicating the inhalation flow. Since it is important that the inhaler is held in a substantially vertical position, at least not deviating more than 45 degrees from the vertical, when the inhaler is activated for making a dose available, the inhaler may, as a further feature, be provided with a position trans- ducer. The position transducer may be connected to the processing device 2 via the cable 3.
- the processing device 2 need to detect both the click sound created when the inhaler is activated for making a dose available and a correct position of the inhaler during the activation, in order that it shall turn on the LED 8 for urging the patient to inhale through the inhaler.
- a microphone is used for the detection of the activation of the inhaler and for the detection of the inhalation flow.
- other means such as a pressure transducer, can be used.
- the method and the apparatus according to the present invention can be used to train a person to use any kind of inhaler, where first the dose is made available for inha- lation and then the inhalation is performed.
- the inhaler may be a breath-activated dry powder inhaler, in particular a Turbuhaler® inhaler.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU21545/95A AU2154595A (en) | 1994-03-25 | 1995-03-24 | A method and an apparatus for training a patient to use an inhaler |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9401020A SE9401020D0 (en) | 1994-03-25 | 1994-03-25 | Method and apparatus in connection with an inhaler |
SE9401020-4 | 1994-03-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995026212A1 true WO1995026212A1 (en) | 1995-10-05 |
Family
ID=20393431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1995/000315 WO1995026212A1 (en) | 1994-03-25 | 1995-03-24 | A method and an apparatus for training a patient to use an inhaler |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2154595A (en) |
SE (1) | SE9401020D0 (en) |
WO (1) | WO1995026212A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5957125A (en) * | 1996-11-05 | 1999-09-28 | Medical Safety Products, Inc. | Apparatus for indicating proper orientation for oral and nasal inhalers |
EP0916356A3 (en) * | 1997-11-12 | 2000-03-01 | Miat S.P.A. | Dose dispenser for substances in powder or granular form |
WO2000069496A1 (en) * | 1999-05-18 | 2000-11-23 | Glaxo Group Limited | Medication dispenser |
GB2406283A (en) * | 2003-09-24 | 2005-03-30 | Altana Pharma Ag | Compliance monitor for a drug delivery device and method of using the compliance monitor. |
WO2011083377A1 (en) * | 2010-01-07 | 2011-07-14 | Koninklijke Philips Electronics N.V. | Respiratory drug delivery apparatus including a feedback and compliance device |
CN104707226A (en) * | 2015-04-06 | 2015-06-17 | 上海朔茂网络科技有限公司 | Operation method of inhalable medication training device |
WO2015154865A3 (en) * | 2014-04-07 | 2015-12-17 | Boehringer Ingelheim International Gmbh | Inhalation training device and system for practicing of an inhalation process of a patient |
WO2016043601A1 (en) * | 2014-09-15 | 2016-03-24 | Adherium (Nz) Ltd | Adherence monitor for a dry powder medicament delivery device |
US10258753B2 (en) | 2012-10-04 | 2019-04-16 | Boehringer Ingelheim International Gmbh | System, method, use and information storage medium for practicing of an inhalation process |
US10456536B2 (en) | 2014-03-25 | 2019-10-29 | Koninklijke Philips N.V. | Inhaler with two microphones for detection of inhalation flow |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0387222A1 (en) * | 1989-03-07 | 1990-09-12 | Aktiebolaget Draco | Device in connection with an inhaler |
WO1992015353A2 (en) * | 1991-03-05 | 1992-09-17 | Miris Medical Corporation | Delivery of aerosol medications for inspiration |
WO1993012823A2 (en) * | 1991-12-20 | 1993-07-08 | Circadian, Inc. | Intelligent inhaler providing feedback to both patient |
-
1994
- 1994-03-25 SE SE9401020A patent/SE9401020D0/en unknown
-
1995
- 1995-03-24 WO PCT/SE1995/000315 patent/WO1995026212A1/en active Application Filing
- 1995-03-24 AU AU21545/95A patent/AU2154595A/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0387222A1 (en) * | 1989-03-07 | 1990-09-12 | Aktiebolaget Draco | Device in connection with an inhaler |
WO1992015353A2 (en) * | 1991-03-05 | 1992-09-17 | Miris Medical Corporation | Delivery of aerosol medications for inspiration |
WO1993012823A2 (en) * | 1991-12-20 | 1993-07-08 | Circadian, Inc. | Intelligent inhaler providing feedback to both patient |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5957125A (en) * | 1996-11-05 | 1999-09-28 | Medical Safety Products, Inc. | Apparatus for indicating proper orientation for oral and nasal inhalers |
EP0916356A3 (en) * | 1997-11-12 | 2000-03-01 | Miat S.P.A. | Dose dispenser for substances in powder or granular form |
WO2000069496A1 (en) * | 1999-05-18 | 2000-11-23 | Glaxo Group Limited | Medication dispenser |
US8464707B2 (en) | 2003-09-24 | 2013-06-18 | Takeda Gmbh | Compliance monitor and method |
GB2406283B (en) * | 2003-09-24 | 2006-04-05 | Altana Pharma Ag | Compliance monitor and method |
GB2406283A (en) * | 2003-09-24 | 2005-03-30 | Altana Pharma Ag | Compliance monitor for a drug delivery device and method of using the compliance monitor. |
WO2011083377A1 (en) * | 2010-01-07 | 2011-07-14 | Koninklijke Philips Electronics N.V. | Respiratory drug delivery apparatus including a feedback and compliance device |
US9352107B2 (en) | 2010-01-07 | 2016-05-31 | Koninklijke Philips N.V. | Respiratory drug delivery apparatus including a feedback and compliance device |
US10258753B2 (en) | 2012-10-04 | 2019-04-16 | Boehringer Ingelheim International Gmbh | System, method, use and information storage medium for practicing of an inhalation process |
US10456536B2 (en) | 2014-03-25 | 2019-10-29 | Koninklijke Philips N.V. | Inhaler with two microphones for detection of inhalation flow |
WO2015154865A3 (en) * | 2014-04-07 | 2015-12-17 | Boehringer Ingelheim International Gmbh | Inhalation training device and system for practicing of an inhalation process of a patient |
CN106132466A (en) * | 2014-04-07 | 2016-11-16 | 勃林格殷格翰国际有限公司 | Suction training devices and the system of suction process is practised for patient |
EA033261B1 (en) * | 2014-04-07 | 2019-09-30 | Бёрингер Ингельхайм Интернациональ Гмбх | Inhalation training device and system for practicing an inhalation process |
WO2016043601A1 (en) * | 2014-09-15 | 2016-03-24 | Adherium (Nz) Ltd | Adherence monitor for a dry powder medicament delivery device |
CN104707226A (en) * | 2015-04-06 | 2015-06-17 | 上海朔茂网络科技有限公司 | Operation method of inhalable medication training device |
Also Published As
Publication number | Publication date |
---|---|
AU2154595A (en) | 1995-10-17 |
SE9401020D0 (en) | 1994-03-25 |
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