JP2020511281A - 後付けエアロゾル送達システムおよび方法 - Google Patents
後付けエアロゾル送達システムおよび方法 Download PDFInfo
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- 230000000241 respiratory effect Effects 0.000 claims abstract description 53
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
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Abstract
Description
Claims (20)
- 既存の呼吸システム用の後付けエアロゾル送達システムであって、
開放内部を形成する導管アダプタであって、人工呼吸システムと患者の気道に接合する送達ルーメンとの間に流体的に連結されるように構成される前記導管アダプタと、
前記導管アダプタと連結されたエアロゾル発生器であって、前記エアロゾル発生器の出力が前記導管アダプタの開放内部と流体連通し、前記エアロゾル発生器は、前記導管アダプタの開放内部を介して患者の気道に送達するための流体をエアロゾル化するように構成される、前記エアロゾル発生器と、
換気中に信号を生成するように構成される呼吸センサと、
前記エアロゾル発生器および前記呼吸センサと接続されたコントローラであって、前記コントローラは、前記呼吸センサから信号を受信し、前記エアロゾル発生器を制御して、呼吸の前および/または呼吸の一部の間に流体のエアロゾル化を開始する、前記コントローラとを備える後付けエアロゾル送達システム。 - 前記送達ルーメンが、前記導管アダプタおよび前記エアロゾル発生器に流体的に連結するように構成された鼻カニューレ、フェイスマスク、マウスピース、気管内チューブ、LMA、または気管切開チューブの一部を形成する、請求項1に記載のシステム。
- 前記呼吸センサは、導管と連結する流量センサである、請求項1に記載のシステム。
- 前記呼吸センサは、流量センサ、レーダーセンサ、二酸化炭素センサ、温度センサ、音響パターンセンサ、インピーダンスプレチスモグラフィーセンサ、腹部変位センサ、および呼吸インダクタンスプレチスモグラフィーセンサのうちの少なくとも1つを含む、請求項1に記載のシステム。
- 流体ラインを介して前記エアロゾル発生器と連結されたポンプをさらに備え、前記ポンプは、前記流体ラインを介して流体を前記エアロゾル発生器に圧送するように構成され、前記コントローラは、前記信号に応答して前記エアロゾル発生器への流体の流れを制御する、請求項1に記載のシステム。
- 前記エアロゾル発生器が、伸縮して振動可能な部材を作動させて流体をエアロゾル化する圧電アクチュエータを含む、請求項1に記載のシステム。
- 前記振動可能な部材が、直径が4ミクロン以下の粒子を有する80%を超える微粒子画分を生成することが可能な光画成振動可能な部材である、請求項6に記載のシステム。
- ポンプが容積式ポンプである、請求項1に記載のシステム。
- 前記ポンプが非容積式ポンプである、請求項8に記載のシステム。
- 前記呼吸システムが、人工呼吸器、持続的気道陽圧(CPAP)マシン、および加湿器のうちの少なくとも1つを含む、請求項1に記載のシステム。
- 既存の呼吸システム用の後付けエアロゾル送達システムであって、
開放内部を形成する導管アダプタであって、人工呼吸システムと患者の気道に接合する送達ルーメンとの間に流体的に連結されるように構成される前記導管アダプタと、
患者が呼吸するときに信号を発信して呼吸パターンを検出するように構成される呼吸センサと、
前記導管アダプタと連結されたエアロゾル発生器であって、前記エアロゾル発生器の出力が前記導管アダプタの開放内部と流体連通し、前記エアロゾル発生器は、流体源から流体を受け取り、前記導管アダプタの開放内部を介して患者の気道に送達するための流体をエアロゾル化するように構成される、前記エアロゾル発生器とを備え、
前記エアロゾル発生器は、検出された呼吸パターンに応答して患者が吸入する前に流体をエアロゾル化するように構成される、後付けエアロゾル送達システム。 - 前記送達ルーメンが、鼻カニューレ、気管内チューブ、または気管切開チューブの一部を形成する、請求項11に記載のシステム。
- 前記呼吸センサから前記信号を受信し、前記信号に応答して呼吸パターンを検出するコントローラを備える、請求項11に記載のシステム。
- 前記呼吸センサは、レーダーセンサ、流量センサ、二酸化炭素センサ、温度センサ、音響パターンセンサ、インピーダンスプレチスモグラフィーセンサ、および呼吸インダクタンスプレチスモグラフィーセンサのうちの少なくとも1つを含む、請求項11に記載のシステム。
- 前記呼吸システムを備え、前記呼吸システムが、人工呼吸器、持続的気道陽圧(CPAP)マシン、および加湿器のうちの少なくとも1つを含む、請求項11に記載のシステム。
- 既存の呼吸システムに患者への流体をエアロゾル化するエアロゾル送達システムを後付けする方法であって、
既存の人工呼吸システムと送達ルーメンとの間に導管アダプタを連結するステップであって、前記導管アダプタは、開放内部を形成し、かつ
患者が呼吸するときに信号を発信して呼吸パターンを検出するように構成される呼吸センサと、
前記導管アダプタの開放内部と流体連通している出力を有するエアロゾル発生器とを含む、前記連結するステップと、
前記送達ルーメンを患者の気道に接合するステップと、
前記呼吸システムを使用して患者に空気を供給するステップと、
前記呼吸センサを使用して呼吸サイクルを検出するステップと、
検出された呼吸サイクルに関連する信号をコントローラに伝達するステップと、
前記コントローラを使用して吸入の開始を予測するステップと、
ポンプにより流体を振動可能な部材に事前充填するステップと、
圧電アクチュエータにより前記振動可能な部材を振動させて、流体をエアロゾル化し、前記導管アダプタの開放内部および前記送達ルーメンを介してエアロゾル化された流体を患者の気道に導入するステップとを含む方法。 - 前記呼吸センサは流量センサを備え、前記呼吸サイクルを検出するステップは、前記流量センサにより流量の変化を検出することを含む、請求項16に記載の方法。
- 流体を前記振動可能な部材に事前充填するステップは、予測される呼吸の持続時間によって測定される吸入の少なくとも1%前に開始する、請求項16に記載の方法。
- 吸入が開始した後、前記振動可能な部材への流体の流れを停止するステップを含む、請求項18に記載の方法。
- 前記圧電アクチュエータは、流体の流れが停止した後、流体を振動およびエアロゾル化し続ける、請求項19に記載の方法。
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