JP2022058883A - 流体ポートの内部流路表面を濡らして超音波信号送信を向上させるための方法及び装置 - Google Patents
流体ポートの内部流路表面を濡らして超音波信号送信を向上させるための方法及び装置 Download PDFInfo
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Abstract
Description
本出願は、2016年6月17日出願の米国特許仮出願第62/351、459号明細書の優先権を主張するもので、その開示の全部が参照によって本明細書に組み込まれる。
図1~4は、本開示の流れセンサシステム200の例示的な構成を示す。図1~4を参照すれば、本開示の流れセンサシステム200は、使用前に互いに嵌合する2つの主組立体、すなわち流れセンサ210及びベース220を含む。1つの例では、流れセンサ210は、再使用可能なベース220と係合可能である単回使用流れセンサとすることができる。流れセンサシステム200は、インテリジェントな注射ポートである。流れセンサシステム200は、手動で投与されるIV注射のための注射部位(例えば「Y部位」または活栓)に取り付け可能である。
図1~2を参照すれば、次に本開示の流れセンサシステム200の使用が説明される。1つの例では、薬物が注射されるとき、流れセンサシステム200は、投与される容量を超音波式に測定する。流れセンサ210内の超音波信号の送信を改善するために、本開示は、流れセンサ210内の流体圧力を増大させる様々な例を提案する。
図8~10は、本開示の流れセンサシステムの力限定デバイスの例示的な構成を示す。図8を参照すれば、シリンジ900のプランジャ920を制御して流体をシリンジ900の内部から送達するための力限定デバイス1010は、近位端部から遠位端部まで延びる作動装置ロッド1012を備える。プランジャ係合部分1014は作動装置ロッド1012の遠位端部に係合され、シリンジ900のプランジャ920と係合するように構成される。例えば、プランジャ係合部分1014の遠位端部にある外壁はプランジャ920と係合することができる。クラッチ1020は作動装置ロッド1012の遠位端部をプランジャ係合部分1014に係合させる。ばね1018は作動装置ロッド1012内を延びる。
プライミングされた流れセンサシステム200を使用するために、ユーザは、最初に流れセンサ210(チュービング側)及びベース220の正面セクションを接合し、次いでこの2つを一緒にスナップ留めすることによって流れセンサ210をベース220に取り付ける。好ましくは、流れセンサ210とベース220の間の固定連結を示す可聴のスナップ音が、聞かれる。1つの例では、流れセンサ210をベース220に連結することにより、流れセンサシステム200上に自動的に給電する。1つの例では、流れセンサ210とベース220の連結部は、ベース220上の点滅光によって確認される。他の例では、他のインジケータが使用されてよい。
Claims (12)
- システムであって、
流体センサであって、
流体チャネルと、
投与可能な流体源の出口に結合するように構成された前記流体チャネルの第1の端部の流体入口と、
前記流体チャネルの第2の端にある流体出口と、
を含む、流体センサと、
前記流体センサの前記流体出口に取り付けられるように構成された流れ制限装置と、
を備えた、システム。 - 前記流れ制限装置は、前記流体チャネル内の流体に印加された可変圧力に応答して変化する内径を有する出口を備え、それによって前記流体チャネル内に流体の摂動的な流れを作り出す請求項1に記載のシステム。
- 前記流れ制限装置がエラストマー材料を備えた、請求項2に記載のシステム。
- 前記流れ制限装置が約34Gの出口を含む、請求項1に記載の方法。
- 前記投与可能な流体源がプランジャを含むシリンジを含み、
システムがさらに、シリンジのプランジャに力を加えるように構成されたシリンジ作動デバイスであって、これにより、前記流体チャネル内の流体に圧力が加えられる、シリンジ作動デバイスを含む、請求項1に記載のシステム。 - 前記流体チャネル内の前記流体の現在の圧力を決定するように構成された圧力センサと、
コントローラであって、
前記圧力センサと通信し、
前記現在の圧力に基づいて、前記シリンジの前記プランジャに加えられる力を調整して、前記流体チャネル内の前記流体の所望の圧力を達成するための前記シリンジ作動デバイスを制御するようにプログラムおよび/または構成されたコントローラと、
をさらに備えた、請求項5に記載のシステム。 - 前記コントローラが、
前記シリンジ作動デバイスを制御して、前記シリンジの前記プランジャに第1の一定の力を加え、それが第1の期間にわたって前記流体チャネル内の前記流体に一定の負圧を加え、
前記シリンジ作動デバイスを制御して、前記シリンジの前記プランジャに第2の一定の力を加え、第1の期間の前および第1の期間の後のいずれかである第2の期間にわたって前記流体チャネル内の前記流体に一定の正圧を加えるように、プログラムおよび/または構成されている、請求項6に記載のシステム。 - 前記シリンジ作動デバイスが、閾値圧力に違反する前記流体チャネル内の前記流体への圧力の印加を抑制するように構成された力限定デバイスを含む、請求項5に記載のシステム。
- 前記力限定デバイスが、
近位端から遠位端まで延びる作動装置ロッドと、
前記作動装置ロッドの前記遠位端と係合し、前記シリンジの前記プランジャと係合するように構成されたプランジャ係合部分と、
近位端、遠位端、および近位端に開口部を有し、前記開口部がプランジャ係合部分を受け取り、前記プランジャ係合部分が本体とねじ止めにより係合する本体と、
を含む、請求項8に記載のシステム。 - 前記力限定デバイスが、
ハンドル及び共働するトリガであって、継手によって第2の部分に連結された第1の部分を該トリガが含んでいる、ハンドル及び共働するトリガと、
前記第1の部分を前記第2の部分に連結するばねと
を含み、
前記共働するトリガの前記第1の部分は、前記シリンジの前記プランジャと係合し、前記シリンジの前記プランジャによって印加されたプランジャ反応力を受け入れるように構成され、前記ハンドルに向かう前記共働するトリガの前記第2の部分の動きは、前記プランジャ反応力に応答して伸張力を前記ばねに印加し、前記共働するトリガの前記第1の部分は、前記ばねに印加された閾値圧力より大きい前記伸張力に応答して、前記シリンジの前記プランジャを係合解除する、請求項8に記載のシステム。 - 前記力限定デバイスが、
近位端から遠位端まで延びる作動装置ロッドと、
作動装置ロッド内に延びるばねであって、ばねの遠位端は、前記シリンジの前記プランジャと係合するように構成される、ばねと、
近位端、遠位端、および前記近位端に開口部を有する本体であって、前記開口部が前記作動装置ロッドの前記遠位端を受け入れ、前記作動装置ロッドがばねの所望の量の圧縮を示す少なくとも1つのインジケータを備えた、本体と、
を含む、請求項8に記載のシステム。 - 前記投与可能な流体源がプランジャを含むシリンジを含み、前記システムは、
前記シリンジを垂直に取り付けるように構成されたシリンジホルダーと、
前記シリンジが前記シリンジホルダーに垂直に取り付けられているときに前記シリンジの前記プランジャに適用されるように構成された負荷と、をさらに備えた、請求項1に記載のシステム。
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