JP2016013493A - 患者に供給されているガスの特性を測定する装置 - Google Patents
患者に供給されているガスの特性を測定する装置 Download PDFInfo
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- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
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- 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
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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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- 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
- A61M16/0666—Nasal cannulas or tubing
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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
- A61M16/0875—Connecting tubes
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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
- A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
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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
- A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
- A61M16/109—Preparation of respiratory gases or vapours by influencing the temperature the humidifying liquid or the beneficial agent
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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
- A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
- A61M16/1095—Preparation of respiratory gases or vapours by influencing the temperature in the connecting tubes
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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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
- A61M16/16—Devices to humidify the respiration air
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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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
- A61M16/16—Devices to humidify the respiration air
- A61M16/161—Devices to humidify the respiration air with means for measuring the humidity
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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
- A61M2016/0027—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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
- A61M2016/102—Measuring a parameter of the content of the delivered gas
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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
- A61M2205/3368—Temperature
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S261/00—Gas and liquid contact apparatus
- Y10S261/65—Vaporizers
Abstract
Description
ガス供給源と、
少なくとも1つの配送コンジットであって、このコンジットを加熱するためのヒータワイヤを含む配送コンジットと、
を備え、前記ヒータワイヤが前記ガスの前記特性を決定するための電気回路に使用されるような装置にある。
図2は、本発明の温度測定方法を実施するのに使用できる回路20を示す。DC加熱電圧25がヒータワイヤに印加されると、ダイオード22が導通して、ヒータワイヤ21、28に電流が流れ、ヒータワイヤは通常に機能して、配送管3に熱を与える。スイッチ29を使用して加熱電圧25がスイッチオフされると、加熱電圧25と逆の極性を有する測定電圧26がヒータワイヤに印加される。この場合に、ヒータワイヤ21、28の電流は、ダイオード22には流れず、サーミスタ23及び基準抵抗器24に流れる。次いで、基準抵抗器24にまたがる電圧を出力27で測定し、ガスの温度を決定することができる。基準抵抗器24にまたがる電圧測定値27は、ルックアップテーブルを使用するか、又は温度値を計算する方程式を使用して、温度に変換される。これは、サーミスタ23が基準抵抗器24とで電位分割器を形成するような通常使用される技術と同様である。
図2に示す回路は、DC加熱電圧が図1に示すようにヒータワイヤ、配送コンジット及びシステムに関連して使用されるときに、使用されるよう意図される。温度のようなガス特性の測定を与え、且つAC及びDC電圧に適した別の実施形態の回路40が図3に示されている。異なる周波数における多数の電圧信号51、52、53が加算器50で一緒に加算される。これらの信号は、少なくとも1つの加熱信号51及び少なくとも1つの測定信号53を含む。これら信号の合成体がヒータワイヤ44に沿って通過し、ヒータワイヤ44に電流(加熱及び測定)を生成する。多数の並列な経路41、43、45が確立され、その各々は、異なる周波数範囲を通過させるフィルタ(例えば、図3に示すように、1つのローパスフィルタ41及び3つのバンドパスフィルタ43、45、48)を含む。これらの並列の経路(即ち、フィルタ、サーミスタ、及び/又はセンサ)は、図2を参照して述べたものと同様に、配送管3の端30に配置されるのが好ましい。これらの並列経路は、測定電流に対して異なる経路に加熱電流を流すことを許す。又、ガスの異なる特性(例えば、温度、圧力、湿度、組成)を測定できるように、多数の測定信号をヒータワイヤに通すことも許す。
Claims (16)
- 患者に供給されているガスの特性を測定する装置において、
ガス供給源と、
少なくとも1つの配送コンジットであって、このコンジットを加熱するためのヒータワイヤを含む配送コンジットと、を備え、前記ヒータワイヤが、前記コンジットの中に、それの周りに又はその全体にわたり配置されて、前記ガスの前記特性を決定するための電気回路に使用され、更に、
前記電気回路が、前記ガスの前記特性が変化するときにコントローラへフィードバックを与えるようにした装置。 - 前記電気回路は、前記ヒータワイヤに直列に接続されて、前記ガスの温度、湿度、圧力及び組成の少なくとも1つの測定値を与え、又はその指示値の計算を行えるようにする、請求項1に記載の患者に供給されているガスの特性を測定する装置。
- 前記電気回路は、前記少なくとも1つの配送コンジットを通して前記患者に供給されるガス中へと少なくとも部分的に延びるプリント回路板上に装着されてシールされる、請求項1又は2に記載の患者に供給されているガスの特性を測定する装置。
- 前記電気回路は、前記配送コンジットの壁へ少なくとも部分的に成形される、請求項1又は2に記載の患者に供給されているガスの特性を測定する装置。
- 前記電気回路は、周囲温度において既知の特性をもつ感知手段を備え、この感知手段は、前記少なくとも1つの配送コンジットに一致させることができる、請求項1又は2に記載の患者に供給されているガスの特性を測定する装置。
- 前記感知手段は、温度センサである、請求項5に記載の患者に供給されているガスの特性を測定する装置。
- 前記電気回路は、前記ヒータワイヤと直列の少なくとも1つのガス特性測定回路を備えた、請求項1から4のいずれかに記載の患者に供給されているガスの特性を測定する装置。
- 前記少なくとも1つのガス特性測定回路は、温度測定回路である、請求項7に記載の患者に供給されているガスの特性を測定する装置。
- 前記温度測定回路は、並列のサーミスタ及びダイオードと、基準抵抗器とを含む、請求項8に記載の患者に供給されているガスの特性を測定する装置。
- 前記サーミスタ及び前記ダイオードは、前記患者の付近で前記配送コンジットの端に配置され、そして前記基準抵抗器は、前記ガス供給手段に含まれる、請求項9に記載の患者に供給されているガスの特性を測定する装置。
- 前記ガス供給手段は、送風機のようなガス流供給装置と、この送風機からの前記ガスを加湿するための加湿器とを備えた、請求項1から10のいずれかに記載の患者に供給されているガスの特性を測定する装置。
- 前記ガス供給手段は、加湿器である、請求項1から11のいずれかに記載の患者に供給されているガスの特性を測定する装置。
- 前記電気回路は、ガス特性測定手段を含む、請求項1から12のいずれかに記載の患者に供給されているガスの特性を測定する装置。
- 前記ガス特性測定手段は、センサ、バンドパスフィルタ又はサーミスタの少なくとも1つと、少なくとも1つの基準抵抗器とを含む、請求項13に記載の患者に供給されているガスの特性を測定する装置。
- センサ、バンドパスフィルタ又はサーミスタの前記少なくとも1つは、前記患者の付近で前記配送コンジットの端に配置され、そして前記少なくとも1つの基準抵抗器及び少なくとも1つのバンドパスフィルタは、前記ガス供給手段に含まれる、請求項14に記載の患者に供給されているガスの特性を測定する装置。
- 添付図面を参照して説明された患者に供給されているガスの特性を測定する装置。
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NZ534853 | 2004-08-20 | ||
NZ53485304 | 2004-08-20 |
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JP2013168353A Division JP5883418B2 (ja) | 2004-08-20 | 2013-08-13 | コンジット |
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JP2016013493A true JP2016013493A (ja) | 2016-01-28 |
JP2016013493A5 JP2016013493A5 (ja) | 2016-03-10 |
JP6356107B2 JP6356107B2 (ja) | 2018-07-11 |
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JP2007527097A Active JP5108516B2 (ja) | 2004-08-20 | 2005-08-19 | 患者に供給されているガスの特性を測定する装置 |
JP2012020278A Pending JP2012091031A (ja) | 2004-08-20 | 2012-02-01 | 患者に供給されているガスの特性を測定する装置 |
JP2013168353A Active JP5883418B2 (ja) | 2004-08-20 | 2013-08-13 | コンジット |
JP2013168354A Active JP5716062B2 (ja) | 2004-08-20 | 2013-08-13 | ガス供給装置 |
JP2015212046A Active JP6356107B2 (ja) | 2004-08-20 | 2015-10-28 | 患者に供給されているガスの特性を測定する装置 |
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JP2007527097A Active JP5108516B2 (ja) | 2004-08-20 | 2005-08-19 | 患者に供給されているガスの特性を測定する装置 |
JP2012020278A Pending JP2012091031A (ja) | 2004-08-20 | 2012-02-01 | 患者に供給されているガスの特性を測定する装置 |
JP2013168353A Active JP5883418B2 (ja) | 2004-08-20 | 2013-08-13 | コンジット |
JP2013168354A Active JP5716062B2 (ja) | 2004-08-20 | 2013-08-13 | ガス供給装置 |
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US (11) | US8453641B2 (ja) |
EP (4) | EP1778330B1 (ja) |
JP (5) | JP5108516B2 (ja) |
CN (2) | CN103143099B (ja) |
AU (1) | AU2005273119B2 (ja) |
CA (3) | CA2850679C (ja) |
DK (2) | DK3766534T3 (ja) |
ES (2) | ES2930302T3 (ja) |
FI (1) | FI4049703T3 (ja) |
HU (2) | HUE060036T2 (ja) |
LT (2) | LT3766534T (ja) |
PL (3) | PL1778330T3 (ja) |
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Cited By (1)
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JP2022501079A (ja) * | 2019-02-15 | 2022-01-06 | ヴィンセント メディカル(ドングアン)マニュファクチャリング シーオー.,エルティーディー. | 埋め込まれた加熱ワイヤー及び温度センサーを備える呼吸回路 |
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