JP5507379B2 - 固有の呼気終末陽圧に対抗して平衡状態を実現する装置 - Google Patents
固有の呼気終末陽圧に対抗して平衡状態を実現する装置 Download PDFInfo
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- JP5507379B2 JP5507379B2 JP2010172519A JP2010172519A JP5507379B2 JP 5507379 B2 JP5507379 B2 JP 5507379B2 JP 2010172519 A JP2010172519 A JP 2010172519A JP 2010172519 A JP2010172519 A JP 2010172519A JP 5507379 B2 JP5507379 B2 JP 5507379B2
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- dynamic airway
- airway compression
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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
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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
-
- 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
- A61M16/0006—Accessories therefor, e.g. sensors, vibrators, negative pressure with means for creating vibrations in patients' airways
-
- 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
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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
- A61M16/021—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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- 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
- A61M16/08—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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- 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
- A61M2016/0036—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
- 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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- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (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)
- External Artificial Organs (AREA)
Description
P=PINSP 流量>0(吸気)
P=PEXP 流量≦0(呼気)
ここでPEXPはPINSPよりも小さいか又は等しい。普通はPEXPはゼロで、PINSPは約10〜20cmH2O程度となる可能性がある。
PEXP(t)=KV(t)/VT
ここでPEXP(t)は呼吸の1サイクルの呼気部分内の時刻tでの圧力であり、V(t)は呼気中の時刻tでの呼気体積であり、VTはその前の吸気の1回換気量である。従ってV(t)/VTは呼気中に0から1まで増加する。定数KはM1またはM2をゼロにサーボ制御するために調節され、PEEPiを近似する。
Claims (6)
- 患者に換気補助を行っている間に動的気道圧迫を改善するために圧力応答を決定するための装置であって
患者の気道とのインターフェースと、
前記インターフェースに呼吸可能な気体を制御可能な圧力で供給する手段と、
前記インターフェースにおける気流量の信号を導き出す手段と、
動的気道圧迫の程度を示す量をサーボ制御することで、患者に換気補助を行うコントローラとを備え、
前記コントローラは、
(a)患者に換気補助を行うために前記インターフェースにおける圧力の変化制御を行い、
(b)呼気流量の時間曲線の信号の形から動的気道圧迫の程度を示す量を導き出す制御を行い、
(c)動的気道圧迫の程度を示す量が大きいかまたは増加している場合は制御可能な呼気の圧力を増加させ、また動的気道圧迫の程度を示す量が小さいかゼロである場合は制御可能な呼気の圧力を減少させることにより、動的気道圧迫の程度を示す量をサーボ制御する、装置。 - 前記動的気道圧迫の程度を示す量の導出と前記動的気道圧迫の程度のサーボ制御の双方が、個々の呼吸サイクルの各々の中で求められた複数の呼吸気流量の値に基づいて行われる、請求項1に記載の装置。
- 前記動的気道圧迫の程度を示す量の導出と前記動的気道圧迫の程度のサーボ制御の双方が、複数の呼吸サイクルにわたって行われる呼吸気流量の1回の決定に基づいて行われる、請求項1に記載の装置。
- 呼気の間、増加する呼気圧力は、呼気体積の一次関数的に制御される、請求項1に記載の装置。
- 導出された前記動的気道圧迫の程度を示す量は、呼気流量がピーク呼気流量の瞬間から終末呼気まで指数関数的に減衰する時にはゼロであるが、呼気流量がピーク呼気流量から急激に減少してその後安定するが呼気の残り期間にわたってゼロでない場合には大きな値となる、請求項1に記載の装置。
- 前記動的気道圧迫の程度を示す量は、呼気時間の最後の約25%の間の平均呼気流量の、ピーク呼気流量に対する比である、請求項5に記載の装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11612199P | 1999-01-15 | 1999-01-15 | |
US60/116,121 | 1999-01-15 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000593365A Division JP4597377B2 (ja) | 1999-01-15 | 2000-01-13 | 固有の呼気終末陽圧に対抗して平衡状態を実現する方法及び装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2013146760A Division JP5735053B2 (ja) | 1999-01-15 | 2013-07-12 | 固有の呼気終末陽圧に対抗して平衡状態を実現する装置 |
Publications (2)
Publication Number | Publication Date |
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JP2011005263A JP2011005263A (ja) | 2011-01-13 |
JP5507379B2 true JP5507379B2 (ja) | 2014-05-28 |
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ID=22365374
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
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JP2000593365A Expired - Lifetime JP4597377B2 (ja) | 1999-01-15 | 2000-01-13 | 固有の呼気終末陽圧に対抗して平衡状態を実現する方法及び装置 |
JP2010172519A Expired - Fee Related JP5507379B2 (ja) | 1999-01-15 | 2010-07-30 | 固有の呼気終末陽圧に対抗して平衡状態を実現する装置 |
JP2013146760A Expired - Fee Related JP5735053B2 (ja) | 1999-01-15 | 2013-07-12 | 固有の呼気終末陽圧に対抗して平衡状態を実現する装置 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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JP2000593365A Expired - Lifetime JP4597377B2 (ja) | 1999-01-15 | 2000-01-13 | 固有の呼気終末陽圧に対抗して平衡状態を実現する方法及び装置 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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JP2013146760A Expired - Fee Related JP5735053B2 (ja) | 1999-01-15 | 2013-07-12 | 固有の呼気終末陽圧に対抗して平衡状態を実現する装置 |
Country Status (6)
Country | Link |
---|---|
US (4) | US6588422B1 (ja) |
EP (2) | EP2263730A3 (ja) |
JP (3) | JP4597377B2 (ja) |
AT (1) | ATE508763T1 (ja) |
AU (1) | AU764874B2 (ja) |
WO (1) | WO2000041757A1 (ja) |
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US20030213491A1 (en) | 2003-11-20 |
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JP2011005263A (ja) | 2011-01-13 |
EP1140263A1 (en) | 2001-10-10 |
WO2000041757A1 (en) | 2000-07-20 |
JP2002534230A (ja) | 2002-10-15 |
JP4597377B2 (ja) | 2010-12-15 |
AU2125800A (en) | 2000-08-01 |
JP2013252434A (ja) | 2013-12-19 |
US7270128B2 (en) | 2007-09-18 |
ATE508763T1 (de) | 2011-05-15 |
EP1140263A4 (en) | 2004-12-08 |
US20060032503A1 (en) | 2006-02-16 |
US6854462B2 (en) | 2005-02-15 |
EP2263730A2 (en) | 2010-12-22 |
US6915803B2 (en) | 2005-07-12 |
EP2263730A3 (en) | 2017-03-15 |
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