JP7352757B2 - 換気マスク - Google Patents
換気マスク Download PDFInfo
- Publication number
- JP7352757B2 JP7352757B2 JP2023029793A JP2023029793A JP7352757B2 JP 7352757 B2 JP7352757 B2 JP 7352757B2 JP 2023029793 A JP2023029793 A JP 2023029793A JP 2023029793 A JP2023029793 A JP 2023029793A JP 7352757 B2 JP7352757 B2 JP 7352757B2
- Authority
- JP
- Japan
- Prior art keywords
- nasal mask
- mask
- nasal
- port
- patient
- 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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Links
- 238000009423 ventilation Methods 0.000 title claims description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- 239000001301 oxygen Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 11
- 206010002091 Anaesthesia Diseases 0.000 claims description 10
- 230000037005 anaesthesia Effects 0.000 claims description 10
- 239000007789 gas Substances 0.000 description 24
- 238000000034 method Methods 0.000 description 19
- 239000012528 membrane Substances 0.000 description 18
- 239000012530 fluid Substances 0.000 description 13
- 238000005070 sampling Methods 0.000 description 10
- 238000002627 tracheal intubation Methods 0.000 description 4
- 101150013568 US16 gene Proteins 0.000 description 3
- 239000003570 air Substances 0.000 description 3
- 238000001356 surgical procedure Methods 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
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229960004194 lidocaine Drugs 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000000932 sedative agent Substances 0.000 description 2
- 230000000153 supplemental effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 229940125723 sedative agent Drugs 0.000 description 1
- 230000001624 sedative effect Effects 0.000 description 1
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
- A61M16/06—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)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Emergency Medicine (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- Physiology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (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 (18)
- 鼻用チャンバを形成する内側表面と、呼気終末CO2マニホルドと、呼気スクープとを備える鼻用マスクであって、前記呼気終末CO2マニホルドは、前記鼻用マスクの外側上且つ前記呼気スクープの後方の第1の開口部と、前記鼻用チャンバで第2の開口部と、前記鼻用マスクの前記外側で呼気終末CO2ポートを備え、前記呼気スクープは、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、又はそれ自体で折り畳まれるように適合されるように、可撓性材料を備える、鼻用マスク。
- 前記呼気終末CO2ポートは、前記鼻用マスクの上側部分から第1の方向に延在する、請求項1に記載の鼻用マスク。
- 前記呼気スクープは、前記鼻用マスクの下側部分から延在する、請求項1に記載の鼻用マスク。
- 患者の鼻から吐き出される呼気CO2を採取するための前記患者の鼻孔の下にあるように前記第2の開口部が前記鼻用チャンバに位置づけられる、請求項1に記載の鼻用マスク。
- 前記第2の開口は、前記第1の開口よりも小さい、請求項1に記載の鼻用マスク。
- 麻酔機械、換気機械、及び/又はハイパーインフレーション・バッグのいずれかに接続するように構成される換気ポートをさらに備える、請求項1に記載の鼻用マスク。
- 前記換気ポートは、前記鼻用マスクの上側部分から第1の方向に延在する、請求項6に記載の鼻用マスク。
- 前記鼻用チャンバに酸素を供給するための酸素源に接続するように構成される酸素ポートをさらに備える、請求項1に記載の鼻用マスク。
- 前記酸素ポートは、前記鼻用マスクの上側部分から第1方向に延在する、請求項8に記載の鼻用マスク。
- 前記呼気スクープの材料が、ショアOO0020から0050のデュロメータ硬さを有するから材料から形成される、請求項1に記載の鼻用マスク。
- 前記呼気スクープの材料が、2から10又は3から7から選択される、ショアA硬さを有する材料から形成される、請求項1に記載の鼻用マスク。
- 前記鼻用マスクの外側表面内に溝をさらに備え、前記呼気スクープが、前記溝の中に嵌め込まれるように構成されるリップを備える、請求項1に記載の鼻用マスク。
- 前記呼気スクープは前記鼻用マスクと一体的に形成される、請求項1に記載の鼻用マスク。
- 前記呼気終末CO2ポートは、前記鼻用マスクの上側部分から第1の方向に延在し、前記呼気スクープは第2の方向に延在し、前記第2の方向は前記第1の方向と異なる、請求項1に記載の鼻用マスク。
- 前記呼気スクープは第3の方向に延在する軸の周りで折り畳まれるように構成され、前記第3の方向は、前記第1の方向に対して横断する、請求項1に記載の鼻用マスク。
- 前記呼気スクープは、前記マスクが装着されたときに、患者の口にアクセス可能に構成される通路を備える、請求項1に記載の鼻用マスク。
- 前記呼気スクープは、前記通路を閉鎖するために、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を備える、請求項16に記載の鼻用マスク。
- 前記通路は、1以上のスロットを備える、請求項16に記載の鼻用マスク。
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 | ||
JP2022053950A JP7237216B2 (ja) | 2016-09-14 | 2022-03-29 | 換気マスク |
Related Parent 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 |
---|---|
JP2023060007A JP2023060007A (ja) | 2023-04-27 |
JP7352757B2 true JP7352757B2 (ja) | 2023-09-28 |
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 Before (2)
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 |
Country Status (9)
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) |
FI (1) | FI3988018T3 (ja) |
WO (1) | WO2018052673A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11298492B2 (en) * | 2016-09-14 | 2022-04-12 | Revolutionary Medical Device, Inc. | Ventilation mask |
CN109906098B (zh) | 2016-09-21 | 2021-12-07 | 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 |
---|---|---|---|---|
US4231363A (en) | 1979-01-08 | 1980-11-04 | Grimes Jerry L | Gas delivery face shield |
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 |
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JP2019531803A (ja) | 2019-11-07 |
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AU2017328060B2 (en) | 2022-09-08 |
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US20190224435A1 (en) | 2019-07-25 |
BR112019004967A8 (pt) | 2023-03-21 |
JP2023060007A (ja) | 2023-04-27 |
EP3512422B1 (en) | 2021-12-29 |
CA3036797A1 (en) | 2018-03-22 |
AU2022275401A1 (en) | 2023-01-05 |
CN114569858A (zh) | 2022-06-03 |
FI3988018T3 (fi) | 2024-10-29 |
EP3512422A1 (en) | 2019-07-24 |
BR112019004967A2 (pt) | 2019-07-02 |
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