JP5403996B2 - 呼吸システム加熱器のための冗長電力制御 - Google Patents
呼吸システム加熱器のための冗長電力制御 Download PDFInfo
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- JP5403996B2 JP5403996B2 JP2008277051A JP2008277051A JP5403996B2 JP 5403996 B2 JP5403996 B2 JP 5403996B2 JP 2008277051 A JP2008277051 A JP 2008277051A JP 2008277051 A JP2008277051 A JP 2008277051A JP 5403996 B2 JP5403996 B2 JP 5403996B2
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
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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
- A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
-
- 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
- A61M16/026—Control means therefor including calculation means, e.g. using a processor specially adapted for predicting, e.g. for determining an information representative of a flow limitation during a ventilation cycle by using a root square technique or a regression analysis
-
- 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
- A61M16/1075—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
-
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
- G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
-
- 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
- A61M16/162—Water-reservoir filling system, e.g. automatic
-
- 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
- A61M2205/17—General characteristics of the apparatus with redundant control systems
-
- 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
-
- 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
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
- A61M2205/3653—General characteristics of the apparatus related to heating or cooling by Joule effect, i.e. electric resistance
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
- F24V99/00—Subject matter not provided for in other main groups of this subclass
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24125—Watchdog, check at timed intervals
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24186—Redundant processors are synchronised
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Biomedical Technology (AREA)
- Anesthesiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Emergency Medicine (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Management (AREA)
- Business, Economics & Management (AREA)
- Control Of Resistance Heating (AREA)
- Hardware Redundancy (AREA)
- Debugging And Monitoring (AREA)
Description
P-22US)に記載されるように、自動的に検出することができる。この開示は、その全体が参照により本明細書に組み込まれる。プロセッサ68は有利には、本出願と同時に出願した「PID Coefficient Adjustment for Respiratory Heater Closed Loop Control」という名称の、米国特許出願第11/927,013号(代理人整理番号MDXCP-23US)、に記載されるように、加熱器、吸息、および呼息制御信号を発生するためにPIDフィードバック制御を利用する。この開示は、その全体が参照により本明細書に組み込まれる。
12 患者
14 換気装置
16 加湿システム
18 加熱器ユニット
20 チャンバ
21 呼吸回路
22 吸息肢
24 呼息肢
26 導管
27 水
28 給水部
29 水蒸気
30 接合部
32 呼吸用アタッチメント
34 加熱器
36 加熱器
38 患者温度ケーブル(PTC)
40 サーミスタ内蔵プローブ
41 温度プローブ
42 第1の通信ケーブル
44 第2の通信ケーブル
48 端部
50 端部
52 コネクタ
54 制御装置
56 加熱器
58 サーミスタ
68 プロセッサ
70 A/D変換器
71 A/D変換器
72 A/D変換器
76 電力回路
77 制御信号
78 電力回路
80 電力回路
82 メモリ
84 ユーザ入力
86 パルス幅変調器(「PWM」)回路
88 電力スイッチ
90 変圧器
100 ハードウェアウォッチドッグモジュール
140 リレー
142 電力信号
144 リレー
146 電力信号
150 主CPU
152 補助CPU
154 CPUシリアル周辺インタフェース
156 タイミング信号
158 タイミング信号
176 信号
178 タイミング信号
180 ハードウェアウォッチドッグタイマ
182 加熱器イネーブル信号
184 補助ゲート制御部
186 「OFF」加熱器イネーブル信号
188 加熱器ゲート制御部
Claims (10)
- 加湿器システムであって、
加熱要素と、
第1の制御信号に応答してオンまたはオフになる第1の電力スイッチと、
第2の制御信号に応答してオンまたはオフになる第2の電力スイッチと、
を備え、
前記第1および第2の電力スイッチは、電力源と前記加熱要素の間に電気的に直列であるとともに、両者は、前記加熱要素の作動のためにオンになるように要求され、
前記加湿器システムは、
第1および第2のプロセッサを備え、
前記第1のプロセッサは、第1の制御パスに沿って前記第1の電力スイッチに前記第1の制御信号を提供し、
前記プロセッサのうちの1つは、第2の制御パスに沿って前記第2の電力スイッチに前記第2の制御信号を提供し、
前記加湿器システムは、
前記第1のプロセッサと前記第1の電力スイッチの間に電気的に直列に前記第1の制御パス内にウォッチドッグを備え、
前記ウォッチドッグは、前記第1のプロセッサから前記第1の電力スイッチへの前記第1の制御信号を通常ゲート制御するように、および前記プロセッサの少なくとも一方を監視するように動作可能であり、
前記ウォッチドッグは、前記少なくとも1つのプロセッサの前記監視に応答して、前記加熱要素を動作不能にするために、前記第1のプロセッサからの前記第1の電力スイッチへの前記第1の制御信号を遮断するようにさらに動作可能である
ことを特徴とする加湿器システム。 - 前記第1のプロセッサは、前記第2の制御パスに沿って、前記第2の電力スイッチに前記第2の制御信号を提供することを特徴とする請求項1に記載のシステム。
- 第2のプロセッサは、前記第2の制御パスに沿って、前記第2の電力スイッチに前記第2の制御信号を提供することを特徴とする請求項1に記載のシステム。
- 前記第2のプロセッサは、前記加熱要素を動作不能にするために、前記ウォッチドッグを作動させるように構成されることを特徴とする請求項1から3のいずれか1項に記載のシステム。
- 前記第1の電力スイッチはリレーを備え、前記第2の電力スイッチは、トライアックまたはその他の固体スイッチ素子を備えることを特徴とする請求項1から4のいずれか1項に記載のシステム。
- 加湿器システムであって、
第1および第2の加熱要素と、
第1の制御信号に応答してオンまたはオフになる第1の電力スイッチと、
第2の制御信号に応答してオンまたはオフになる第2の電力スイッチと、
第3の制御信号に応答してオンまたはオフになる第3の電力スイッチと、
を備え、
前記第1および第3の電力スイッチは、電力源と前記第1の加熱要素の間に電気的に直列であり、両者は、前記第1の加熱要素の作動のためにオンになるように要求され、
前記第2および第3の電力スイッチは、電力源と前記第2の加熱要素の間に電気的に直列であり、両者は、前記第2の加熱要素の作動のためにオンになるように要求され、
前記加湿器システムは、
第1および第2のプロセッサを備え、
前記第1のプロセッサは、第1の制御パスおよび第2の制御パスに沿って、それぞれ前記第1および第2の電力スイッチに前記第1および第2の制御信号を提供し、
前記プロセッサの1つは、第3の制御パスに沿って、前記第3の電力スイッチに前記第3の制御信号を提供し、
前記加湿器システムは、
前記第1のプロセッサと前記第1および第2の電力スイッチの間に電気的に直列である前記第1および第2の制御パス内にあるウォッチドッグを備え
前記ウォッチドッグは、前記第1のプロセッサからの前記第1および第2の電力スイッチへの前記第1および第2の制御信号を通常ゲート制御するように、および前記プロセッサの少なくとも一方を監視するように動作可能であり、
前記ウォッチドッグは、前記少なくとも1つのプロセッサの前記監視に応答して、前記第1および第2の加熱要素を動作不能にするために、前記第1のプロセッサからの前記第1および第2の電力スイッチへの前記第1の制御信号を遮断するようにさらに動作可能である
ことを特徴とする加湿器システム。 - 前記第2のプロセッサは、前記第3の制御パスに沿って、前記第3の電力スイッチに前記第3の制御信号を提供することを特徴とする請求項6に記載のシステム。
- 前記第2のプロセッサは、前記第1および第2の加熱要素を動作不能にするために、前記ウォッチドッグを作動させるように構成されることを特徴とする請求項6または7に記載のシステム。
- 前記第1および第2の電力スイッチの各々は、トライアックまたはその他の固体スイッチ素子を備え、前記第3の電力スイッチはリレーを備えることを特徴とする請求項6から8のいずれか1項に記載のシステム。
- 前記第1のプロセッサは、主プロセッサであり、前記第2のプロセッサは、補助プロセッサであることを特徴とする請求項6から9のいずれか1項に記載のシステム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/927,054 US8511305B2 (en) | 2007-10-29 | 2007-10-29 | Redundant power control for respiratory system heaters |
US11/927,054 | 2007-10-29 |
Publications (2)
Publication Number | Publication Date |
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JP2009106745A JP2009106745A (ja) | 2009-05-21 |
JP5403996B2 true JP5403996B2 (ja) | 2014-01-29 |
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Application Number | Title | Priority Date | Filing Date |
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JP2008277051A Expired - Fee Related JP5403996B2 (ja) | 2007-10-29 | 2008-10-28 | 呼吸システム加熱器のための冗長電力制御 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8511305B2 (ja) |
EP (1) | EP2055340A1 (ja) |
JP (1) | JP5403996B2 (ja) |
AU (1) | AU2008237548B2 (ja) |
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-
2007
- 2007-10-29 US US11/927,054 patent/US8511305B2/en not_active Expired - Fee Related
-
2008
- 2008-10-22 EP EP08167314A patent/EP2055340A1/en not_active Withdrawn
- 2008-10-28 JP JP2008277051A patent/JP5403996B2/ja not_active Expired - Fee Related
- 2008-10-28 AU AU2008237548A patent/AU2008237548B2/en not_active Ceased
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11129954B2 (en) | 2012-11-14 | 2021-09-28 | Fisher & Paykel Healthcare Limited | Zone heating for respiratory circuits |
US12053587B2 (en) | 2012-11-14 | 2024-08-06 | Fisher & Paykel Healthcare Limited | Zone heating for respiratory circuits |
Also Published As
Publication number | Publication date |
---|---|
AU2008237548B2 (en) | 2013-02-07 |
AU2008237548A1 (en) | 2009-05-14 |
EP2055340A1 (en) | 2009-05-06 |
US8511305B2 (en) | 2013-08-20 |
JP2009106745A (ja) | 2009-05-21 |
US20090107493A1 (en) | 2009-04-30 |
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