JP4771711B2 - 呼吸回路用の加湿装置 - Google Patents
呼吸回路用の加湿装置 Download PDFInfo
- Publication number
- JP4771711B2 JP4771711B2 JP2005037408A JP2005037408A JP4771711B2 JP 4771711 B2 JP4771711 B2 JP 4771711B2 JP 2005037408 A JP2005037408 A JP 2005037408A JP 2005037408 A JP2005037408 A JP 2005037408A JP 4771711 B2 JP4771711 B2 JP 4771711B2
- Authority
- JP
- Japan
- Prior art keywords
- unit
- water
- temperature
- humidification
- humidifying
- 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.)
- Expired - Fee Related
Links
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 90
- 230000002209 hydrophobic effect Effects 0.000 claims description 16
- 230000005856 abnormality Effects 0.000 claims description 12
- 239000012510 hollow fiber Substances 0.000 claims description 10
- 230000000241 respiratory effect Effects 0.000 claims description 8
- 230000003434 inspiratory effect Effects 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
-
- 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
- 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
-
- 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
- A61M16/10—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
-
- 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
- A61M16/142—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase with semi-permeable walls separating the liquid from the respiratory gas
-
- 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
-
- 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
- A61M16/142—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase with semi-permeable walls separating the liquid from the respiratory gas
- A61M16/145—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase with semi-permeable walls separating the liquid from the respiratory gas using hollow fibres
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Emergency Medicine (AREA)
- Hematology (AREA)
- Pulmonology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Air Humidification (AREA)
Description
まず、本実施形態の加湿装置3が用いられる呼吸回路1の構成を概略的に説明する。この呼吸回路1は、吸気管11と、呼気管12と、Y形のマウスピース13とから構成されている。
|T1−T2|≦Tth
もちろん、当然のことながら、
|T1−T2|<Tth
というような、実質的に等価な条件式を用いることもできる。なお、規定値Tthは、目的や状況に応じて操作者が適宜設定しても良いし、制御部33が何らかの条件を用いて自動的に設定しても良い。
P1>P2+Ph≧Paw
ここで、
P1:ポンプからの送水圧力
P2:送出部322の内圧
Ph:貯水槽34の高さ又は水位hに対応した圧力
Paw:吸気管内部の圧力
である。
次に、本実施形態に係る加湿装置の動作を説明する。まず、前提として、加湿部31が、図1に示されているように、吸気管11の内部に既に配置されているとする。ついで、ポンプ35により、貯水槽34の内部の水(水分)を、加熱部36に送り出す。これにより、水温は、所定の温度まで上昇する。加熱後の水温T1は、制御部33により取得されて記録される。
さらに、前記した制御部33などの機能要素どうしは、複合して一つの機能要素に集約されても良い。また、一つの機能要素の機能が複数の機能要素の協働により実現されても良い。さらに、前記した機能要素は、機能として存在していればよく、機能実現のための手段としては、ハードウエア、コンピュータソフトウエア、これらの組み合わせなどの、任意のものを用いることができる。一つの機能要素が、物理的に離散した位置に配置されたハードウエアやコンピュータソフトウエアの協働により実現されてもよい。
11 吸気管
12 呼気管
13 マウスピース
2 人工呼吸器
3 加湿装置
31 加湿部
32 通水部
321 供給部
322 送出部
33 制御部
34 貯水槽
35 ポンプ
36 加熱部
Claims (6)
- 加湿部と、通水部と、制御部と、ポンプとを備えており、
前記加湿部は、内側に温水を通過させることが可能な疎水性中空糸又は疎水性膜によって構成されており、
前記加湿部は、呼吸回路における吸気管の内部に配置されるものであり、
前記加湿部は、前記疎水性中空糸又は疎水性膜の内側に温水を通過させることによって、前記疎水性中空糸又は疎水性膜の外部であってかつ前記吸気管の内部を通る吸気中に水分を供給できる構成となっており、
前記通水部は、前記加湿部に温水を供給する供給部と、前記加湿部に供給された温水を送り出すための送出部とを備えており、
前記制御部は、前記供給部における温水の温度と、前記送出部における温水の温度との差の情報を用いて異常検出を行う構成となっており、
前記ポンプは、前記供給部に対して正圧で前記温水を送り出すための圧力を、前記温水に付与する構成となっており、これによって、前記通水部及び前記加湿部に送り出される温水の圧力は、前記呼吸回路における吸気管の内圧よりも高い値とされている
ことを特徴とする、呼吸回路用の加湿装置。 - 前記通水部の前記供給部と前記送出部とは、いずれも、柔軟性のあるチューブにより構成されており、前記供給部又は前記送出部の全部又は一部は、前記吸気管の内部に配置されていることを特徴とする、請求項1に記載の呼吸回路用の加湿装置。
- 前記加湿部は、前記吸気管における患者側の端部近傍に配置されていることを特徴とする、請求項1又は2に記載の呼吸回路用の加湿装置。
- 前記制御部は、前記供給部における温水の温度に対する、前記送出部における温水の温度の低下量が規定値以下であることを条件として、前記異常検出を行うことを特徴とする、請求項1〜3のいずれか1項に記載の呼吸回路用の加湿装置。
- 前記供給部に供給される温水の温度は、約60〜70℃とされている請求項1〜4のいずれか1項に記載の呼吸回路用の加湿装置。
- 前記供給部における水温と、前記送出部における水温とは、いずれも、前記吸気管の外側の位置における温水の水温である、請求項1〜5のいずれか1項に記載の呼吸回路用の加湿装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005037408A JP4771711B2 (ja) | 2005-02-15 | 2005-02-15 | 呼吸回路用の加湿装置 |
AT06713640T ATE432728T1 (de) | 2005-02-15 | 2006-02-14 | Befeuchtungseinheit für beatmungsgerät |
EP06713640A EP1849492B1 (en) | 2005-02-15 | 2006-02-14 | Humidifier unit for breathing circuit |
PCT/JP2006/302499 WO2006088006A1 (ja) | 2005-02-15 | 2006-02-14 | 呼吸回路用の加湿装置 |
DE602006007109T DE602006007109D1 (de) | 2005-02-15 | 2006-02-14 | Befeuchtungseinheit für Beatmungsgerät |
US11/816,381 US8146590B2 (en) | 2005-02-15 | 2006-02-14 | Humidification system for breathing circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005037408A JP4771711B2 (ja) | 2005-02-15 | 2005-02-15 | 呼吸回路用の加湿装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006223332A JP2006223332A (ja) | 2006-08-31 |
JP4771711B2 true JP4771711B2 (ja) | 2011-09-14 |
Family
ID=36916412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005037408A Expired - Fee Related JP4771711B2 (ja) | 2005-02-15 | 2005-02-15 | 呼吸回路用の加湿装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8146590B2 (ja) |
EP (1) | EP1849492B1 (ja) |
JP (1) | JP4771711B2 (ja) |
DE (1) | DE602006007109D1 (ja) |
WO (1) | WO2006088006A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015142647A (ja) * | 2014-01-31 | 2015-08-06 | 株式会社メトラン | 加湿器及び呼吸補助装置 |
WO2015115489A1 (ja) | 2014-01-31 | 2015-08-06 | 株式会社メトラン | 呼吸補助装置 |
JP2015181894A (ja) * | 2014-03-26 | 2015-10-22 | 株式会社メトラン | 呼吸補助装置 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202007015930U1 (de) * | 2007-11-13 | 2008-03-06 | Lmt Lammers Medical Technology Gmbh | Atemgasbefeuchter |
EP2320977B1 (en) * | 2008-07-30 | 2017-09-13 | Genericus, Inc. | Inline vaporizer |
US20150083126A1 (en) * | 2012-04-27 | 2015-03-26 | Draeger Medical Systems, Inc. | Breathing Circuit Humidification System |
US9375546B2 (en) | 2012-06-26 | 2016-06-28 | William Henry Ruff | Personal airway humidification and oxygen-enrichment apparatus and method |
US10874819B2 (en) | 2014-03-14 | 2020-12-29 | Fisher & Paykel Healthcare Limited | Humidification system |
TWI559947B (en) * | 2014-10-09 | 2016-12-01 | Delta Electronics Inc | Humidifier for continuous positive airway pressure |
JP6899143B2 (ja) * | 2015-10-16 | 2021-07-07 | 株式会社メトラン | 呼吸補助装置 |
JP6899144B2 (ja) * | 2015-10-16 | 2021-07-07 | 株式会社メトラン | 消音器、人工呼吸器 |
JP7052989B2 (ja) * | 2017-09-20 | 2022-04-12 | 株式会社メトラン | 呼吸補助装置、呼吸補助方法 |
JP6912808B2 (ja) * | 2016-09-26 | 2021-08-04 | 株式会社メトラン | 呼吸補助装置、呼吸補助方法 |
CN115177838A (zh) * | 2016-09-26 | 2022-10-14 | 株式会社美全 | 呼吸辅助装置、呼吸辅助方法 |
JP6255558B1 (ja) * | 2016-09-26 | 2018-01-10 | 株式会社メトラン | 呼吸補助装置、呼吸補助方法 |
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CH581474A5 (ja) * | 1974-06-27 | 1976-11-15 | Draegerwerk Ag | |
DE2522102C3 (de) * | 1975-05-17 | 1978-05-03 | Draegerwerk Ag, 2400 Luebeck | Atemluftanfeuchter für Beatmungsvorrichtungen |
US4086305A (en) * | 1976-06-10 | 1978-04-25 | Dragerwerk Aktiengesellschaft | Humidifier for respirators having a sealed container water supply to a water storage tank |
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-
2005
- 2005-02-15 JP JP2005037408A patent/JP4771711B2/ja not_active Expired - Fee Related
-
2006
- 2006-02-14 WO PCT/JP2006/302499 patent/WO2006088006A1/ja active Application Filing
- 2006-02-14 US US11/816,381 patent/US8146590B2/en not_active Expired - Fee Related
- 2006-02-14 EP EP06713640A patent/EP1849492B1/en active Active
- 2006-02-14 DE DE602006007109T patent/DE602006007109D1/de active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015142647A (ja) * | 2014-01-31 | 2015-08-06 | 株式会社メトラン | 加湿器及び呼吸補助装置 |
WO2015115489A1 (ja) | 2014-01-31 | 2015-08-06 | 株式会社メトラン | 呼吸補助装置 |
JP2015181894A (ja) * | 2014-03-26 | 2015-10-22 | 株式会社メトラン | 呼吸補助装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2006223332A (ja) | 2006-08-31 |
US20090126735A1 (en) | 2009-05-21 |
DE602006007109D1 (de) | 2009-07-16 |
EP1849492A1 (en) | 2007-10-31 |
EP1849492A4 (en) | 2008-07-23 |
US8146590B2 (en) | 2012-04-03 |
EP1849492B1 (en) | 2009-06-03 |
WO2006088006A1 (ja) | 2006-08-24 |
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