JP7050765B2 - 換気マスク - Google Patents
換気マスク Download PDFInfo
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- JP7050765B2 JP7050765B2 JP2019515265A JP2019515265A JP7050765B2 JP 7050765 B2 JP7050765 B2 JP 7050765B2 JP 2019515265 A JP2019515265 A JP 2019515265A JP 2019515265 A JP2019515265 A JP 2019515265A JP 7050765 B2 JP7050765 B2 JP 7050765B2
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- Prior art keywords
- mask
- patient
- exhaled
- scoop
- nasal
- 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.)
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- 238000009423 ventilation Methods 0.000 title claims description 21
- 239000007789 gas Substances 0.000 claims description 26
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 24
- 229910052760 oxygen Inorganic materials 0.000 claims description 24
- 239000001301 oxygen Substances 0.000 claims description 24
- 206010002091 Anaesthesia Diseases 0.000 claims description 11
- 230000037005 anaesthesia Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 description 18
- 238000005070 sampling Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 15
- 239000012530 fluid Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 4
- 238000002627 tracheal intubation Methods 0.000 description 4
- 101150013568 US16 gene Proteins 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000932 sedative agent Substances 0.000 description 3
- 230000001624 sedative effect Effects 0.000 description 3
- NNJVILVZKWQKPM-UHFFFAOYSA-N Lidocaine Chemical compound CCN(CC)CC(=O)NC1=C(C)C=CC=C1C NNJVILVZKWQKPM-UHFFFAOYSA-N 0.000 description 2
- 239000003994 anesthetic gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229960004194 lidocaine Drugs 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
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
- A61M16/06—Respiratory or anaesthetic masks
- A61M16/0605—Means for improving the adaptation of the mask to the patient
- A61M16/0616—Means for improving the adaptation of the mask to the patient with face sealing means comprising a flap or membrane projecting inwards, such that sealing increases with increasing inhalation gas 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
- A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
- A61M16/0816—Joints or connectors
- A61M16/0841—Joints or connectors for sampling
- A61M16/085—Gas sampling
-
- 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
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/083—Measuring rate of metabolism by using breath test, e.g. measuring rate of oxygen consumption
- A61B5/0836—Measuring rate of CO2 production
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/097—Devices for facilitating collection of breath or for directing breath into or through measuring devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/6803—Head-worn items, e.g. helmets, masks, headphones or goggles
-
- 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
- A61M16/01—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes specially adapted for anaesthetising
-
- 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
- A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
-
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/02—Gases
- A61M2202/0208—Oxygen
-
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/02—Gases
- A61M2202/0225—Carbon oxides, e.g. Carbon dioxide
-
- 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
- A61M2230/00—Measuring parameters of the user
- A61M2230/005—Parameter used as control input for the apparatus
-
- 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
- A61M2230/00—Measuring parameters of the user
- A61M2230/40—Respiratory characteristics
- A61M2230/43—Composition of exhalation
-
- 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
- A61M2230/00—Measuring parameters of the user
- A61M2230/40—Respiratory characteristics
- A61M2230/43—Composition of exhalation
- A61M2230/432—Composition of exhalation partial CO2 pressure (P-CO2)
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pulmonology (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Anesthesiology (AREA)
- Emergency Medicine (AREA)
- Hematology (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Physiology (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Description
Q=πφ2V/4 式1
ΔP=ρfLV2/2φ 式2
ΔP=(8ρfL/π2φ5)Q2 式3
R2=(8ρfL/π2φ5) 式4
Q=ΔP1/2/R 式5
ここでは、
Q=体積流量(m3/分)
ρ=流体密度(kg/m3)
φ=パイプ直径(m)
V=流体速度(m/分)
ΔP=2つのポイントの間の圧力差(Pa)
f=パイプの摩擦係数
L=パイプ長さ(m)
R=パイプ抵抗(Pa1/2-分/m3)
CO2ポートへの口用開口部である孔20の入口のノード・ポイントA
- 孔20の直径、φa=φCO2ポート
- 孔20のところの圧力、PA
- 孔20を通る口呼気の体積流量、QAC
- ノードAからノードCまでのパイプ抵抗、RAC
- ノードAからノードCまでのパイプの長さ、LAC
CO2ポートへの鼻用開口部である孔22の入口のノード・ポイントB
- 孔22の直径、φb
- 孔22のところの圧力、PB
- 孔22を通る鼻呼気の体積流量、QBC
- ノードBからノードCまでのパイプ抵抗、RBC
- ノードBからノードCまでのパイプの長さ、LBC
CO2ポートへの孔22の出口に隣接するCO2ポートの内部のノード・ポイントC
- CO2ポートの直径、φCO2ポート
- ノードCのところの圧力、PC
- ノードCを通る体積流量、QCD
- ノードCからノードDまでのパイプ抵抗、RCD
- ノードCからノードDまでのパイプの長さ、LCD
CO2ポートの出口のノード・ポイントD(CO2試料ラインへのコネクタ)
- CO2ポートの直径、φCO2ポート
- ノードDのところの圧力、PD
- ノードDを通る体積流量、QCD
各々のノード・ポイントの間の流量は以下のように定義される。
QAC+QBC=QCD 式6
QAC=(PA-PC)1/2/RAC 式7
QBC=(PB-PC)1/2/RBC 式8
QCD=(PC-PD)1/2/RCD 式9
理想的には、呼気CO2を測定するために、口呼気からの流量QAC及び鼻呼気からの流量QBCが等しい。非加圧構成では、PA及びPBの両方がほぼ等しく、また大気圧に等しい。この構成では、ノード間の付随する抵抗RAC及びRBCが、関連のパイプ直径及びパイプ長さを適切に構成することにより等しくなるように設計される。ここでの課題は、加圧構成において、マスクの鼻部分PBが大気圧及びPAを基準とした10~15CM H2Oの公称値まで加圧されることである。この構成では、QBCに等しいQACを有するために、RBCがRACより比例的に大きいことが必要である。RBCが増大しないと、QBCがQACより大きくなる。非加圧構成及び加圧構成の両方においてCO2採取のために実質的に等しい口側の流れ及び鼻側の流れを維持することを目的として、等しい流量を維持するためにRBCがPBの関数として変化しなければならない。
Claims (6)
- マスクの着用時に患者の上唇の上に重なるように適合される、マスクの下側部分に隣接して固定される、可撓性材料又は弾性変形可能材料で形成される呼気スクープを有する鼻用マスクであって、前記呼気スクープが邪魔にならないようにするために押しつぶされるか又はそれ自体で折り畳まれるように適合され、それにより患者の口へのアクセスを可能にする、鼻用マスク。
- 患者の口及び鼻から吐き出される呼気CO2を採取するための呼気終末CO2ポートを更に有し、前記呼気終末CO2ポートが、インターフェース・コネクタに接続されるためのインターフェース、また好適にはルアー・ロックを任選選択で装備し、並びに/或いはマスクが、麻酔機械、換気機械、ハイパーインフレーション・バッグ、又は他の換気アクセサリ若しくはガス・アクセサリに取り付けられるように適合される換気ポート、及び/又は前記マスクの内部に酸素を供給するための酸素供給源に接続されるように適合される酸素ポートを有する、請求項1に記載のマスク。
- マスクの着用時に患者の上唇に被さるように適合される、マスクの下側部分に隣接して固定される呼気スクープを有する鼻用マスクであって、前記呼気スクープが、前記マスクの着用時に患者の口へアクセスするのを可能にする開口部と、前記開口部を閉鎖するための、前記呼気スクープの内部表面上に配置される可撓性フラップとを有し、前記開口部が、好適には、アパーチャ、或いは1つ又は複数のスリットを備える、鼻用マスク。
- 鼻用チャンバを形成する内部と、鼻用マスクの下側部分に隣接して固定される呼気スクープと、を有する鼻用マスクであって、前記呼気スクープは、マスクの着用時に患者の上唇の上に重なるように適合され、前記鼻用マスクが、前記患者の口から吐き出される呼気CO2を採取するための第1の開口部と、患者の鼻から吐き出される呼気CO2を採取するための第2の開口部とを有する、鼻用マスク。
- 前記呼気スクープが可撓性又は弾性変形可能であり、邪魔にならないようにするために押しつぶされるか又はそれ自体で折り畳まれるように適合され、それにより患者の口へのアクセスを可能にし、並びに/或いは前記マスクが、麻酔機械、換気機械、ハイパーインフレーション・バッグ、又は換気アクセサリ若しくはガス・アクセサリに取り付けられるように適合される換気ポート、又は前記マスクの内部に酸素を供給するための酸素供給源に接続されるように適合される酸素ポートを有する、請求項4に記載のマスク。
- 前記第1の開口部が、患者の上唇の上に重なるように呼気スクープ12の後方に位置し、前記第2の開口部が患者の鼻孔の下にあるように前記鼻用マスクの内側に位置する、請求項4に記載のマスク。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022053950A JP7237216B2 (ja) | 2016-09-14 | 2022-03-29 | 換気マスク |
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201662394405P | 2016-09-14 | 2016-09-14 | |
US62/394,405 | 2016-09-14 | ||
US201662425371P | 2016-11-22 | 2016-11-22 | |
US62/425,371 | 2016-11-22 | ||
US201762467808P | 2017-03-06 | 2017-03-06 | |
US62/467,808 | 2017-03-06 | ||
US201762510192P | 2017-05-23 | 2017-05-23 | |
US62/510,192 | 2017-05-23 | ||
PCT/US2017/048046 WO2018052673A1 (en) | 2016-09-14 | 2017-08-22 | Ventilation mask |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022053950A Division JP7237216B2 (ja) | 2016-09-14 | 2022-03-29 | 換気マスク |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019531803A JP2019531803A (ja) | 2019-11-07 |
JP7050765B2 true JP7050765B2 (ja) | 2022-04-08 |
Family
ID=61620063
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019515265A Active JP7050765B2 (ja) | 2016-09-14 | 2017-08-22 | 換気マスク |
JP2022053950A Active JP7237216B2 (ja) | 2016-09-14 | 2022-03-29 | 換気マスク |
JP2023029793A Active JP7352757B2 (ja) | 2016-09-14 | 2023-02-28 | 換気マスク |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022053950A Active JP7237216B2 (ja) | 2016-09-14 | 2022-03-29 | 換気マスク |
JP2023029793A Active JP7352757B2 (ja) | 2016-09-14 | 2023-02-28 | 換気マスク |
Country Status (8)
Country | Link |
---|---|
US (2) | US11298492B2 (ja) |
EP (2) | EP3988018B1 (ja) |
JP (3) | JP7050765B2 (ja) |
CN (2) | CN114569858A (ja) |
AU (2) | AU2017328060B2 (ja) |
BR (1) | BR112019004967A8 (ja) |
CA (1) | CA3036797A1 (ja) |
WO (1) | WO2018052673A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA3036797A1 (en) * | 2016-09-14 | 2018-03-22 | Revolutionary Medical Devices, Inc. | Ventilation mask |
CN114306864B (zh) * | 2016-09-21 | 2024-02-20 | 瑞思迈私人有限公司 | 用于患者接口的换气口和换气口适配器 |
USD885556S1 (en) | 2018-04-13 | 2020-05-26 | Fisher & Paykel Healthcare Limited | Tip, tube and clip assembly for a gas sampling apparatus |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004321721A (ja) | 2003-02-18 | 2004-11-18 | Nippon Koden Corp | 炭酸ガス測定センサ |
JP2009172347A (ja) | 2007-03-09 | 2009-08-06 | Nippon Koden Corp | 呼気情報収集用アダプタおよび生体情報処理システム |
US20120285466A1 (en) | 2011-05-11 | 2012-11-15 | Pierro Brian W | Adjusting a ventilation mask |
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BR112019004967A2 (pt) | 2019-07-02 |
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CN114569858A (zh) | 2022-06-03 |
JP2022079585A (ja) | 2022-05-26 |
EP3512422B1 (en) | 2021-12-29 |
JP2019531803A (ja) | 2019-11-07 |
AU2022275401A1 (en) | 2023-01-05 |
EP3512422A1 (en) | 2019-07-24 |
AU2017328060A1 (en) | 2019-04-11 |
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