JP2000516491A - リーク及び呼吸エアーフローの決定 - Google Patents
リーク及び呼吸エアーフローの決定Info
- Publication number
- JP2000516491A JP2000516491A JP10509239A JP50923998A JP2000516491A JP 2000516491 A JP2000516491 A JP 2000516491A JP 10509239 A JP10509239 A JP 10509239A JP 50923998 A JP50923998 A JP 50923998A JP 2000516491 A JP2000516491 A JP 2000516491A
- Authority
- JP
- Japan
- Prior art keywords
- instantaneous
- mask
- airflow
- pressure
- leak
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
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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
- A61M16/0057—Pumps therefor
-
- 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
-
- 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
- A61M16/0057—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
-
- 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
- A61M16/021—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
-
- 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
- A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
-
- 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
-
- 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
- A61M2016/0036—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the breathing tube and used in both inspiratory and expiratory phase
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Emergency Medicine (AREA)
- Engineering & Computer Science (AREA)
- Pulmonology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Examining Or Testing Airtightness (AREA)
- Regulating Braking Force (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Magnetically Actuated Valves (AREA)
- Paper (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.機械換気中に、リーク通路のあるマスクにおける瞬間リークフローを決定す る方法であって、 (a)マスクにおける瞬間エアーフローを決定するステップと、 (b)マスクにおける瞬間圧力を決定するステップと、 (c)ローパスフィルタリングされた瞬間圧力の平方根で割られた、ローパスフ ィルタリングされた瞬間エアーフローとして、上記リーク通路の非線形コンダク タンスを見積もるステップと、そして、 (d)上記瞬間リークフローを、上記瞬間圧力の平方根で乗算された上記コンダ クタンスとなるように決定するステップとを含む方法。 2.呼吸可能なガスをマスクで受ける患者の瞬間呼吸エアーフローを、マスクリ ークの存在のもとで決定する方法であって、 (a)マスクにおける瞬間エアーフローを決定するステップと、 (b)マスクにおける瞬間圧力を決定するステップと、 (c)ローパスフィルタリングされた瞬間圧力の平方根で割られた、ローパスフ ィルタリングされた瞬間エアーフローとして、上記リーク通路の非線形コンダク タンスを見積もるステップと、 (d)上記瞬間リークフローを、上記瞬間圧力の平方根で乗算された上記コンダ クタンスとなるように決定するステップと、そして、 (e)瞬間エアーフローから瞬間リークフローを引いて、呼吸エアーフローを計 算するステップとを含む方法。 3.上記ローパスフィルタリングのための時定数が、上記瞬間リークフローにお ける突然の変化に依存して動的に調整可能である請求項2記載の方法。 4.上記動的調整が、 上記コンダクタンスが突然に変化する程の程度のインデックスを得るステップ と、そして、 反対の意味における上記時定数を、上記インデックスにおける相当の変化に変 えるステップとをさらに含む請求項3記載の方法。 5.上記インデックスが、 計算されたエアーフローの絶対大きさが、予期されるよりも長いがために予期 されるよりも大きくなるまでの程度を、上記計算された呼吸エアーフローから決 定するステップにより得られる請求項4記載の方法。 6.上記ステッブ(a)および(b)が、 上記マスクに連結されたガス吐出回路内のエアーフローおよび圧力を測定する ことと、 上記吐出回路エアーフローの関数として、該吐出回路に沿うマスクへの圧力降 下を計算することと、そして、 上記圧力降下よりも小さい上記測定された吐出回路圧として得られた上記瞬間 マスク圧を計算することと、 得られた瞬間マスク圧の関数として、マスクの出口を通るエアーフローを計算 することと、そして、 測定された吐出回路エアーフローから出口エアーフローを引いて得られた上記 マスクエアーフローを計算することを含む請求項2記載の方法。 7.呼吸可能なガスをマスクで受ける患者の呼吸エアーフローを、マスクリーク の存在のもとで決定する装置であって、 瞬間のマスクのエアーフローおよび圧力を決定するために、マスクに、もしく はマスクの近傍に配置されたトランスジューサー手段と、そして、 ローパスフィルタリングされた瞬間圧力の平方根で割られた、ローパスフィル タリングされた瞬間エアーフローとして、上記リーク通路の非線形コンダクタン スを見積もるための、且つ瞬間リークフローを、上記瞬間圧力の平方根で乗算さ れた上記コンダクタンスとなるように決定するための、そして、瞬間エアーフロ ーから瞬間リークフローを引いて、呼吸エアーフローを計算するためのプロセッ シング手段とを備えた装置。 8.上記ローパスフィルタリングのための時定数が、上記瞬間リークフローにお ける突然の変化に依存して動的に調整可能である請求項7記載の装置。 9.上記プロセッサー手段が、 上記コンダクタンスが突然に変化する程の程度のインデックスを得ることによ って、そして反対の意味における上記時定数を、上記インデックスにおける相当 の変化に変えることによって、時定数を動的に調整する請求項8記載の装置。 10.上記プロセッサー手段が、 計算されたエアーフローの絶対大きさが、予期されるよりも長いがために予期 されるよりも大きくなるまでの程度を決定することにより、上記インデックスを 上記計算された呼吸エアーフローから得る請求項9記載の装置。 11.上記トランスジューサー手段が、差圧トランスジューサーに連結された呼 吸タコグラフを備えている請求項7記載の装置。 12.上記呼吸タコグラフが、マスクとマスク出口との間に配置されている請求 項11記載の装置。 13.上記トランスジューサー手段が、上記マスクに連結されて且つ該マスクか ら離れているガス吐出回路の中に配置されている請求項11記載の装置。 14.連続した正の気道圧処理または機械換気を提供する装置であって、 呼吸可能なガスの供給を発生するためのタービンと、 上記タービンに接続されたガス吐出チューブと、 患者の気道に上記呼吸可能なガスを供給すべく上記吐出チューブに連結された マスクと、 瞬間のマスクのエアーフローおよび圧力を決定するために、マスクに、もしく はマスクの近傍に配置されたトランスジューサー手段と、 ローパスフィルタリングされた瞬間圧力の平方根で割られた、ローパスフィル タリングされた瞬間エアーフローとして、上記リーク通路の非線形コンダクタン スを見積もるための、且つ瞬間リークフローを、上記瞬間圧力の平方根で乗算さ れた上記コンダクタンスとなるように決定するための、そして、瞬間エアーフロ ーから瞬間リークフローを引いて、呼吸エアーフローを計算するためのプロセッ サー手段と、 上記フロー発生器を制御するための、そして順に、マスク圧及び/又はマスク エアーフローを、計算された呼吸エアーフローに基づいて制御するための制御手 段とを備えた装置。 15.上記ローパスフィルタリングのための時定数が、上記瞬間リークフローに おける突然の変化に依存して動的に調整可能である請求項14記載の装置。 16.上記プロセッサー手段が、 上記コンダクタンスが突然に変化する程の程度のインデックスを得ることによ って時定数を動的に調整し、且つ反対の意味における上記時定数を、上記インデ ックスにおける相当の変化に変える請求項15記載の装置。 17.上記プロセッサー手段が、 計算されたエアーフローの絶対大きさが、予期されるよりも長いがために予期 されるよりも大きくなるまでの程度を決定することにより、上記インデックスを 上記計算された呼吸エアーフローから得る請求項16記載の装置。 18.呼吸可能なガスをマスクで受ける患者の瞬間呼吸エアーフローを、マスク リークの存在のもとで決定するコンピュータープログラムであって、該プログラ ムは、マスクにおける瞬間エアーフローと瞬間圧力の入力データを受け、 (a)マスクにおける瞬間エアーフローを決定する計算ステップと、 (b)マスクにおける瞬間圧力を決定する計算ステップと、 (c)ローパスフィルタリングされた瞬間圧力の平方根で割られた、ローパスフ ィルタリングされた瞬間エアーフローとして、上記リーク通路の非線形コンダク タンスを見積もる計算ステップと、 (d)上記瞬間リークフローを、上記瞬間圧力の平方根で乗算された上記コンダ クタンスとなるように決定する計算ステップと、そして、 (e)瞬間エアーフローから瞬間リークフローを引いて、呼吸エアーフローを計 算する計算ステップとを含むコンピュータープログラム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPO1638A AUPO163896A0 (en) | 1996-08-14 | 1996-08-14 | Determination of respiratory airflow |
PCT/AU1997/000517 WO1998006449A1 (en) | 1996-08-14 | 1997-08-14 | Determination of leak and respiratory airflow |
AU1638 | 1998-09-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000516491A true JP2000516491A (ja) | 2000-12-12 |
JP3635097B2 JP3635097B2 (ja) | 2005-03-30 |
Family
ID=3795951
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50923998A Expired - Fee Related JP3635097B2 (ja) | 1996-08-14 | 1997-08-14 | リーク及び呼吸エアーフローの決定 |
Country Status (8)
Country | Link |
---|---|
US (7) | US6152129A (ja) |
EP (1) | EP0929336B1 (ja) |
JP (1) | JP3635097B2 (ja) |
AT (1) | ATE342083T1 (ja) |
AU (2) | AUPO163896A0 (ja) |
CA (1) | CA2263126C (ja) |
DE (1) | DE69736808T2 (ja) |
WO (1) | WO1998006449A1 (ja) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009527323A (ja) * | 2006-02-21 | 2009-07-30 | カーディナル・ヘルス・207、インコーポレイテッド | 圧力駆動体のためのハードウェア構成 |
JP2010501290A (ja) * | 2006-08-30 | 2010-01-21 | レスメド・リミテッド | Cpap治療中の漏出の判定 |
JP2011516159A (ja) * | 2008-03-31 | 2011-05-26 | ネルコア・ピユーリタン・ベネツト・エル・エル・シー | 人工呼吸器リーク補償 |
JP2012091007A (ja) * | 2005-10-21 | 2012-05-17 | Resmed Ltd | Cpapシステムの流量及び圧力推定を向上させる方法並びに装置 |
JP2013116340A (ja) * | 2003-11-26 | 2013-06-13 | Resmed Ltd | 呼吸不全の存在下での換気サポートの全身制御のための方法及び装置 |
JP2014531581A (ja) * | 2011-09-13 | 2014-11-27 | コーニンクレッカ フィリップス エヌ ヴェ | 気体圧力に基づく漏れ検査モジュール |
JP2016517723A (ja) * | 2013-04-04 | 2016-06-20 | スミスズ メディカル インターナショナル リミテッド | 呼吸回復器装置及びフロー監視 |
JP2017148550A (ja) * | 2010-07-30 | 2017-08-31 | レスメド・リミテッドResMed Limited | 漏れ検出を用いた方法及びデバイス |
JP2018522687A (ja) * | 2015-08-14 | 2018-08-16 | レスメド・リミテッドResMed Limited | 呼吸圧力治療の監視 |
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US5632269A (en) | 1989-09-22 | 1997-05-27 | Respironics Inc. | Breathing gas delivery method and apparatus |
US6000396A (en) * | 1995-08-17 | 1999-12-14 | University Of Florida | Hybrid microprocessor controlled ventilator unit |
AUPO163896A0 (en) * | 1996-08-14 | 1996-09-05 | Resmed Limited | Determination of respiratory airflow |
AU2002306200B2 (en) * | 1996-08-14 | 2004-12-23 | Resmed Limited | Determination of Leak and Respiratory Airflow |
AUPO247496A0 (en) * | 1996-09-23 | 1996-10-17 | Resmed Limited | Assisted ventilation to match patient respiratory need |
AUPO301796A0 (en) | 1996-10-16 | 1996-11-07 | Resmed Limited | A vent valve apparatus |
US5881717A (en) * | 1997-03-14 | 1999-03-16 | Nellcor Puritan Bennett Incorporated | System and method for adjustable disconnection sensitivity for disconnection and occlusion detection in a patient ventilator |
SE9704643D0 (sv) * | 1997-12-12 | 1997-12-12 | Astra Ab | Inhalation apparatus and method |
AUPP693398A0 (en) * | 1998-11-05 | 1998-12-03 | Resmed Limited | Fault diagnosis in CPAP and NIPPV devices |
AUPP783198A0 (en) * | 1998-12-21 | 1999-01-21 | Resmed Limited | Determination of mask fitting pressure and correct mask fit |
US6467477B1 (en) * | 1999-03-26 | 2002-10-22 | Respironics, Inc. | Breath-based control of a therapeutic treatment |
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US6546930B1 (en) | 2000-09-29 | 2003-04-15 | Mallinckrodt Inc. | Bi-level flow generator with manual standard leak adjustment |
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CA2430775A1 (en) | 2000-12-11 | 2002-06-20 | Resmed Ltd. | Method and apparatus for stroke patient treatment |
ATE468874T1 (de) * | 2000-12-29 | 2010-06-15 | Resmed Ltd | Charakterisierung von maskensystemen |
AUPR315401A0 (en) | 2001-02-16 | 2001-03-15 | Resmed Limited | An apparatus for supplying clean breathable gas |
DE10161057A1 (de) * | 2001-12-12 | 2003-07-10 | Heptec Gmbh | Verfahren zur Steuerung des Differenzdrucks in einem CPAP-Gerät sowie CPAP-Gerät |
DE10200183A1 (de) * | 2002-01-04 | 2003-07-17 | Heptec Gmbh | Verfahren zur Bestimmung eines Maskendrucks zur Druckregelung in einem CPAP-Gerät, Verfahren zur Bestimmung des Luftstroms und/oder Luftdrucks in einem CPAP-Gerät, CPAP-Gerät sowie Prüfapparatur dafür |
US7438073B2 (en) * | 2002-03-08 | 2008-10-21 | Kaerys S.A. | Air assistance apparatus for computing the airflow provided by only means of pressure sensors |
US7448383B2 (en) * | 2002-03-08 | 2008-11-11 | Kaerys, S.A. | Air assistance apparatus providing fast rise and fall of pressure within one patient's breath |
US7000611B2 (en) | 2002-03-26 | 2006-02-21 | Klemperer Walter G | Mouthpiece, nasal seal, head appliance, apparatus, and methods of treating sleep apnea |
CA2386639A1 (en) * | 2002-05-16 | 2003-11-16 | Dynamic Mt Gmbh | Portable electronic spirometer |
EP1605999A1 (de) * | 2003-03-24 | 2005-12-21 | Weinmann Geräte für Medizin GmbH & Co. KG | Verfahren und vorrichtung zur erkennung von leckagen bei einrichtungen zum zuführen von atemgasen |
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2000
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2001
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US7661428B2 (en) | 2010-02-16 |
ATE342083T1 (de) | 2006-11-15 |
WO1998006449A1 (en) | 1998-02-19 |
JP3635097B2 (ja) | 2005-03-30 |
US6279569B1 (en) | 2001-08-28 |
US6152129A (en) | 2000-11-28 |
US6945248B2 (en) | 2005-09-20 |
US20020069874A1 (en) | 2002-06-13 |
AUPO163896A0 (en) | 1996-09-05 |
CA2263126C (en) | 2005-11-29 |
AU731800B2 (en) | 2001-04-05 |
EP0929336A4 (en) | 2003-04-02 |
US6659101B2 (en) | 2003-12-09 |
US20060005835A1 (en) | 2006-01-12 |
US8763609B2 (en) | 2014-07-01 |
DE69736808T2 (de) | 2007-08-16 |
US20140331998A1 (en) | 2014-11-13 |
EP0929336B1 (en) | 2006-10-11 |
EP0929336A1 (en) | 1999-07-21 |
DE69736808D1 (de) | 2006-11-23 |
US20100101576A1 (en) | 2010-04-29 |
AU3762597A (en) | 1998-03-06 |
US20040074492A1 (en) | 2004-04-22 |
CA2263126A1 (en) | 1998-02-19 |
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