JP4336496B2 - マスクシステムの特性付け - Google Patents
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- JP4336496B2 JP4336496B2 JP2002554166A JP2002554166A JP4336496B2 JP 4336496 B2 JP4336496 B2 JP 4336496B2 JP 2002554166 A JP2002554166 A JP 2002554166A JP 2002554166 A JP2002554166 A JP 2002554166A JP 4336496 B2 JP4336496 B2 JP 4336496B2
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- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
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- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0051—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes with alarm devices
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- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0057—Pumps therefor
- A61M16/0066—Blowers or centrifugal pumps
- A61M16/0069—Blowers or centrifugal pumps the speed thereof being controlled by respiratory parameters, e.g. by inhalation
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- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
- A61M16/022—Control means therefor
- A61M16/024—Control means therefor including calculation means, e.g. using a processor
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- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
- A61M16/0816—Joints or connectors
- A61M16/0841—Joints or connectors for sampling
- A61M16/0858—Pressure sampling ports
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- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0057—Pumps therefor
- A61M16/0066—Blowers or centrifugal pumps
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
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- A—HUMAN NECESSITIES
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- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/105—Filters
- A61M16/1055—Filters bacterial
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- A—HUMAN NECESSITIES
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- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/105—Filters
- A61M16/106—Filters in a path
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- 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
- A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
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- 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
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- 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
- A61M2205/15—Detection of leaks
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- 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
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
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- 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
- A61M2205/50—General characteristics of the apparatus with microprocessors or computers
- A61M2205/502—User interfaces, e.g. screens or keyboards
- A61M2205/505—Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
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- 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
- A61M2205/70—General characteristics of the apparatus with testing or calibration facilities
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- 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
- A61M2230/00—Measuring parameters of the user
- A61M2230/40—Respiratory characteristics
- A61M2230/46—Resistance or compliance of the lungs
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Animal Behavior & Ethology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pulmonology (AREA)
- Emergency Medicine (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Measuring Fluid Pressure (AREA)
Description
1.全ての測定について、テスト圧あるいは流れは10から20秒間安定しているように保持されなければならず、この期間中に平均の流れおよび圧力が記録される。
2.ステップ2および3の間の測定圧力は、非常に低い(0.2〜2cmH2O)。これは、異常に低い(CPAPについて)圧力でのファンの正確かつ安定した制御を必然的に伴う。この制御の理想的なモードは、一定の流れを届けることである。
3.ステップ5において、良好なリークに耐え得る密閉状態はブロック部材を用いて提供される。このステップの間、マスクはいかなるリークをもあらわにするように最高テスト圧で加圧される。これは、表示される流れを観察し、これが安定し、かつ最小であるようにブロック部材を調節することによってチェックすることができる。
4.特徴付けを確認するためにステップ8において行われ得る数多くの整合性のチェックがある。これらのいくつかは、
・テスト圧および流れの境界のチェック
・ホースの降下およびディフューザのリークのモデルに関するAおよびBの係数についての期待値のチェック
・AおよびBの係数のどちらも負でないことのチェック(圧力流れ曲線は、増加する勾配を有していなければならない)
である。
12 フロージェネレータ
13、15 センサ
14 マスクシステム
16 ホース
34 患者用インタフェース
36 ディフューザ
Claims (18)
- フロージェネレータを備えるCPAP装置に接続されたマスクシステムの空気流特性を決定する方法であって、
前記マスクシステムは、空気配送ホースと、ディフューザを有する患者用インタフェースとを有し、
前記フロージェネレータは、制御可能な空気送風機とフローセンサと圧力センサとを有し、
前記方法は、
前記患者用インタフェースを通る流れが開放されている第一のテスト期間中になされた流れの測定を用いて前記空気配送ホースの空気流特性を決定し、
前記患者用インタフェースを通る前記流れが塞がれている第二のテスト期間中に前記患者用インタフェースにおける圧力を測定し、
前記第一のテスト期間中に決定された前記空気配送ホースの前記空気流特性および前記第二のテスト期間中になされた前記圧力の測定を用いて前記ディフューザの空気流特性を決定することを特徴とする、方法。 - 前記空気配送ホースの前記空気流特性および前記ディフューザの前記空気流特性を処理することをさらに備えることを特徴とする、請求項1に記載の方法。
- 前記空気配送ホースの前記空気流特性の決定は、2つのホース定数を有する二次式の関数として計算されることを特徴とする、請求項1または2に記載の方法。
- 前記2つのホース定数(Hose A、Hose B)は前記ディフューザについての真の低い方のテスト圧(TrueDiffTP1)および真の高い方のテスト圧(TrueDiffTP2)を計算するために用いられ、
前記真の低い方のテスト圧は、TrueDiffTP1 = DiffTP1 − HoseA*x − HoseB*HoseA(x) 2 として定義され、ここでDiffTP1[cmH 2 O]は前記ディフューザについての低い方のテスト圧力であり、
前記真の高い方のテスト圧は、TrueDiffTP2 = DiffTP2 − HoseA*X − HoseB*HoseA(X) 2 として定義され、ここでDiffTP2[cmH 2 O]は前記ディフューザについての高い方のテスト圧力であることを特徴とする、請求項4に記載の方法。 - 前記マスクシステムの前記空気流特性の決定は、2つのディフューザ定数(Diff A、Diff B)を有する二次式の関数として計算されることを特徴とする、請求項1から5のいずれか1つに記載の方法。
- 前記患者用インタフェースの形状に相補的な形状を有するフローブロック部材で前記患者用インタフェースを塞ぐことをさらに備えることを特徴とする、請求項1〜7のいずれか1つに記載の方法。
- 前記フローブロック部材の前記形状は、人間の鼻および人間の顔の少なくとも一方を表すことを特徴とする、請求項8に記載の方法。
- 前記フローブロック部材を前記患者用インタフェースに貼ることをさらに備えることを特徴とする、請求項8または9に記載の方法。
- 呼吸可能なガスの制御可能な供給源に接続されたマスクシステムの空気流特性を決定する方法であって、
前記マスクシステムは、空気配送ホースと患者用インタフェースとを有し、
前記方法は、
前記マスクシステムが開放されている場合の、圧力が制御されたテスト期間中に前記呼吸可能なガスの制御可能な供給源での空気流量を測定し、
前記マスクシステムがふさがれている場合の、流れが制御されたテスト期間中に前記呼吸可能なガスの制御可能な供給源での圧力を測定し、
前記圧力が制御されたテスト期間および前記流れが制御されたテスト期間中にそれぞれ測定された圧力および空気流量に基づいて、前記マスクシステムの空気流特性を決定することを特徴とする、方法。 - 前記圧力が制御されたテスト期間中に、第一の実質的に一定の圧力で空気を届け、続いて第二の実質的に一定の圧力で空気を届けるように呼吸可能ガスの前記供給源を制御することをさらに備えることを特徴とする、請求項11に記載の方法。
- 前記第一の実質的に一定の圧力は、前記第二の実質的に一定の圧力よりも低いことを特徴とする、請求項12に記載の方法。
- 前記流れが制御されたテスト期間中に第一の実質的に一定の流量で空気を届け、続いて第二の実質的に一定の流量で空気を届けるように呼吸可能ガスの前記供給源を制御することをさらに備えることを特徴とする、請求項11〜13のいずれか1つに記載の方法。
- 前記第一の実質的に一定の流量は、前記第二の実質的に一定の流量よりも低いことを特徴とする、請求項14に記載の方法。
- 請求項1〜15のいずれか1つに記載の方法を行うべく機械で実行可能な命令を含む機械可読媒体。
- 患者の治療に有用なCPAP装置であって、
ハウジングと、
前記ハウジングと連通している呼吸用マスクシステムであって、空気配送ホースと、ディフューザ開口部を有する患者用インタフェースとを備える呼吸用マスクシステムと、
前記患者に呼吸可能なガスの供給を届けるように構成されており、前記ハウジングに関連しており、テスト期間中に前記空気配送ホースを通して前記患者用インタフェースへ呼吸可能なガスの制御可能な供給源を供給するように制御可能なフロージェネレータであって、前記テスト期間中に呼吸可能なガスの前記制御可能な供給源の複数の流れの測定が行われるフロージェネレータと、
前記患者用インタフェースを通る流れが開放されている前記テスト期間の第一の部分中になされた流れの測定を用いて、前記空気配送ホースの空気流特性を決定する手段と、
前記患者用インタフェースを通る前記流れがふさがれている前記テスト期間の第二の部分中に前記患者用インタフェースにおける圧力を測定する手段と、
前記テスト期間の前記第一の部分中に決定された前記空気配送ホースの前記空気流特性および前記テスト期間の前記第二の部分中になされた前記圧力の測定を用いて、前記ディフューザ開口部の空気流特性を決定する手段と
を備えることを特徴とする、CPAP装置。 - 請求項1〜15のいずれか1つに記載の方法を行うCPAP装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25860600P | 2000-12-29 | 2000-12-29 | |
PCT/AU2001/001673 WO2002053217A1 (en) | 2000-12-29 | 2001-12-24 | Characterisation of mask systems |
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JP2008065275A Division JP4805965B2 (ja) | 2000-12-29 | 2008-03-14 | マスクシステムの特性付け |
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JP2004532666A JP2004532666A (ja) | 2004-10-28 |
JP4336496B2 true JP4336496B2 (ja) | 2009-09-30 |
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JP2002554166A Expired - Fee Related JP4336496B2 (ja) | 2000-12-29 | 2001-12-24 | マスクシステムの特性付け |
JP2008065275A Expired - Fee Related JP4805965B2 (ja) | 2000-12-29 | 2008-03-14 | マスクシステムの特性付け |
JP2011000580A Expired - Fee Related JP5346347B2 (ja) | 2000-12-29 | 2011-01-05 | Cpap装置 |
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JP2008065275A Expired - Fee Related JP4805965B2 (ja) | 2000-12-29 | 2008-03-14 | マスクシステムの特性付け |
JP2011000580A Expired - Fee Related JP5346347B2 (ja) | 2000-12-29 | 2011-01-05 | Cpap装置 |
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US (5) | US7987847B2 (ja) |
EP (1) | EP1355689B1 (ja) |
JP (3) | JP4336496B2 (ja) |
AT (1) | ATE468874T1 (ja) |
DE (2) | DE60142256D1 (ja) |
WO (1) | WO2002053217A1 (ja) |
Families Citing this family (137)
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US8156937B2 (en) * | 2003-08-04 | 2012-04-17 | Carefusion 203, Inc. | Portable ventilator system |
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EP1355689B1 (en) | 2010-05-26 |
DE60142256D1 (de) | 2010-07-08 |
JP2004532666A (ja) | 2004-10-28 |
JP2011067667A (ja) | 2011-04-07 |
JP5346347B2 (ja) | 2013-11-20 |
JP4805965B2 (ja) | 2011-11-02 |
US8056559B2 (en) | 2011-11-15 |
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