JP7252143B2 - 駆動部材の位置及び流体注入器システムの機械的較正のためのシステム及び方法 - Google Patents
駆動部材の位置及び流体注入器システムの機械的較正のためのシステム及び方法 Download PDFInfo
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- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
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- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
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Description
この出願は、2017年8月31日に出願された「駆動部材の位置較正のためのシステムと方法」と題される米国仮出願第62/552,427号、2017年8月31日に出願された「流体注入器システムのスラックを特徴付けて修正するためのシステム及び方法」と題される米国仮出願第62/552,589号の優先権を主張し、これらの出願の開示内容は、それらの全体が本明細書に組み入れられる。
本開示は、一般に、医療用流体注入器などの流体注入器を較正するためのシステム及び方法に関し、更に、流体注入器システムにおける流体注入器の駆動部材の位置を較正する及び機械的なスラックを特徴付けて修正するためのシステム及び方法に関する。
12 シリンジ
13 シリンジポート
14 プランジャ
15 長手方向軸
16 駆動部材/ピストン
17 流路セット
18 円筒状バレル、シリンジバレル
19 駆動部材、ピストン
20 近位端
21 外面
22 ノズル、遠位端
23 内面
24 遠位端
25 内容積
30 挿入部分
31 注入器モータ
32 圧力ジャケット
34 ローリングダイアフラムシリンジ
36 中空本体
38 内容積
40 遠位端
42 近位端
44 可撓性側壁
46 閉端壁
48 排出首部
50 中央部
52 駆動部材係合部、ピストン
54 ハウジング、注入器
56 MUDS
58 シリンジ、ポンプ
60 バルク流体コネクタ
62 MUDS流路
64 フレーム
66 充填ポート
68 排出出口、導管
69 マニホールド
70 スラック
72 バルブ
74 流体出口ライン
76 ポート
80 流体容器
119 側壁
150 矢印
155 矢印
160 センサ
170 矢印
300 コンピュータデバイス、注入器プロセッサ
F 流体
Claims (27)
- 流体注入器システムの駆動部材の位置を較正するための方法であって、前記方法は、
駆動部材を備える少なくとも1つのシリンジを流体注入器の少なくとも1つのピストンと係合させて、これにより前記少なくとも1つのピストンが前記駆動部材と動作可能に連通するようにするステップと、
前記駆動部材を前記少なくとも1つのピストンと共に、前記少なくとも1つのシリンジ内の最遠位位置へと駆動させるステップと、
前記駆動部材を用いて、前記少なくとも1つのシリンジの遠位端に第1の所定の負荷力を印加するステップと、
前記駆動部材の位置を記録するステップであって、当該位置において、前記第1の所定の負荷力が得られる、ステップと、
前記第1の所定の負荷力より小さい第2の所定の負荷力が得られるまで、前記駆動部材を所定の速度で近位方向に移動させるステップと、
前記駆動部材の位置を記録するステップであって、当該位置において、前記第2の所定の負荷力が得られる、ステップと、
を含む方法。 - 前記駆動部材がプランジャを備え、少なくとも1つのピストンが前記プランジャを駆動させる、請求項1に記載の方法。
- 前記少なくとも1つのシリンジは、前記駆動部材として近位端を有するとともにピストン係合部を備えるローリングダイアフラムシリンジを備え、前記少なくとも1つのピストンは、前記駆動部材を駆動させるために前記ピストン係合部と解放可能に係合する、請求項1に記載の方法。
- 前記少なくとも1つのピストンがリニアアクチュエータを備える、請求項1から3のいずれか一項に記載の方法。
- 前記少なくとも1つのピストンがモータを備える、請求項1から3のいずれか一項に記載の方法。
- 前記負荷力値がゼロに減少されるまで、所定の速度で前記駆動部材に印加される前記負荷力を解放するステップを更に含む、請求項1から5のいずれか一項に記載の方法。
- 前記負荷力値がゼロに減少されるまで、所定の速度で前記駆動部材を近位方向に駆動させるステップを更に含む、請求項1から6のいずれか一項に記載の方法。
- 少なくとも1つのピストンを備える流体注入器と、
駆動部材及び遠位端を備える少なくとも1つのシリンジであって、流体と、前記流体注入器の少なくとも1つのピストンと、を収容するように構成され、且つ前記少なくとも1つのシリンジの前記駆動部材と動作可能に係合するように構成される、少なくとも1つのシリンジと、
前記少なくとも1つのピストンと動作可能に通信するメモリ及びコントローラを有する、少なくとも1つのコンピュータデバイスと、
を備え、
前記コントローラは、
前記少なくとも1つのピストンに遠位方向の力を印加して、前記駆動部材を前記少なくとも1つのシリンジの前記遠位端の最遠位位置へと遠位方向に駆動させ、
前記駆動部材により、前記少なくとも1つのシリンジの前記遠位端に第1の所定の負荷力を印加し、
前記第1の所定の負荷力よりも小さい第2の所定の負荷力が得られるまで、前記駆動部材を近位方向に移動させ、
前記第2の所定の負荷力が得られる、前記駆動部材の位置を前記メモリに記憶する、
ように構成される、
注入システム。 - 前記駆動部材がプランジャを備え、前記少なくとも1つのピストンが前記プランジャを駆動させるように構成される、請求項8に記載の注入システム。
- 前記少なくとも1つのシリンジは、前記駆動部材として近位端を有するとともにピストン係合部を備えるローリングダイアフラムシリンジを備え、
前記少なくとも1つのピストンは、前記駆動部材を駆動させるために前記ピストン係合部と解放可能に係合する、
請求項8に記載の注入システム。 - 前記ピストンがリニアアクチュエータを備える、請求項8から10のいずれか一項に記載の注入システム。
- 前記ピストンがモータを備える、請求項8から10のいずれか一項に記載の注入システム。
- 前記コントローラは、前記負荷力値がゼロに減少されるまで、所定の速度で前記駆動部材に印加される前記負荷力を解放するように構成される、請求項8から12のいずれか一項に記載の注入システム。
- 前記コントローラは、前記負荷力値がゼロに減少されるまで、所定の速度で前記駆動部材を近位方向に駆動させるように構成される、請求項8から13のいずれか一項に記載の注入システム。
- 少なくとも1つの流体を患者に送出するための流体注入器システムにおいて、前記システムは、
プロセッサと少なくとも1つのピストンとを有する流体注入器と、
前記流体注入器に取り外し可能に接続される少なくとも1つのシリンジであって、前記少なくとも1つのシリンジのバレル内に配置されて、且つ前記少なくとも1つのシリンジの長手方向軸に沿って可逆的に移動可能なプランジャを備え、前記流体注入器の前記少なくとも1つのピストンが、前記プランジャと係合して、前記少なくとも1つのシリンジの前記バレル内で前記長手方向軸に沿って移動するように構成される、少なくとも1つのシリンジと、
前記少なくとも1つのシリンジと少なくとも1つの流体容器とに流体連通する少なくとも1つのバルブであって、前記バルブが、前記シリンジが前記流体容器と流体連通する第1の位置、前記少なくとも1つのシリンジが前記流体容器から分離される第2の位置、及び前記少なくとも1つのシリンジが患者と流体連通する第3の位置、の間で切り換え可能である、バルブと、
を備え、
前記流体注入器の前記プロセッサは、
前記流体注入器の前記少なくとも1つのピストンを、前記少なくとも1つのシリンジの遠位端まで駆動させ、
前記少なくとも1つのピストンを前記少なくとも1つのシリンジの近位端に向けて引き込んで、前記少なくとも1つの流体容器から前記少なくとも1つのシリンジ内に流体を引き込み、
前記少なくとも1つのシリンジ内の前記少なくとも1つのピストンの基準位置を測定して記憶し、
前記少なくとも1つのバルブを前記第1の位置から前記第2の位置に切り換え、
前記少なくとも1つのピストンへの所望の負荷に達するまで、前記少なくとも1つのピストンを前記少なくとも1つのシリンジの前記遠位端に向けて駆動させ、
前記少なくとも1つのシリンジ内の前記少なくとも1つのピストンの接触位置を測定して記憶し、ここで、前記接触位置は前記所望の負荷に達する位置であり、
前記基準位置と前記接触位置との間の差の少なくとも一部に基づいて、スラック修正量を導き出す、
ようにプログラムされ又は構成される、
流体注入器システム。 - 前記流体注入器の前記プロセッサは、前記少なくとも1つのバルブを前記第1の位置、前記第2の位置、及び前記第3の位置の間で切り換えるようにプログラムされるか又は構成される、請求項15に記載のシステム。
- 前記流体注入器の前記プロセッサは、前記少なくとも1つのシリンジ内の圧力を軽減するようにプログラムされるか又は構成される、請求項15又は16に記載のシステム。
- 流体注入システムのスラックを特徴付けて修正するための方法において、前記方法は、
流体注入器の少なくとも1つの駆動部材を、前記流体注入器に接続される少なくとも1つのシリンジの遠位端まで駆動させるステップと、
前記少なくとも1つの駆動部材を前記少なくとも1つのシリンジの近位端に向けて引き込んで、前記少なくとも1つのシリンジと流体連通する少なくとも1つの流体容器から、前記少なくとも1つのシリンジ内に流体を引き込むステップと、
少なくとも1つのバルブを、前記少なくとも1つのシリンジが前記少なくとも1つの流体容器と流体連通する第1の位置から、前記少なくとも1つのシリンジが前記少なくとも1つの流体容器から分離されて、前記少なくとも1つのシリンジを前記流体注入システムの少なくとも一部から分離する第2の位置に、切り換えるステップと、
前記少なくとも1つのシリンジ内の前記少なくとも1つの駆動部材の基準位置を測定して記憶するステップと、
前記少なくとも1つの駆動部材への所望の負荷に達するまで、前記少なくとも1つの駆動部材を前記少なくとも1つのシリンジの前記遠位端に向けて駆動させるステップと、
前記少なくとも1つのシリンジ内の前記少なくとも1つの駆動部材の接触位置を測定して記憶するステップであって、前記接触位置が前記所望の負荷に達する位置である、ステップと、
前記基準位置と前記接触位置との間の差の少なくとも一部に基づいて、スラック修正量を導き出すステップと、
を含む方法。 - 前記少なくとも1つのシリンジから前記流体を排出するステップと、
前記少なくとも1つのシリンジに、所望量の流体と前記スラック修正量に等しい付加的な量の流体とを充填するステップと、
を更に含み、
前記方法ステップは、前記注入器の前記少なくとも1つの駆動部材を駆動するモータを制御するように構成されるプロセッサによって実行される、請求項18に記載の方法。 - 前記スラック修正量は、前記少なくとも1つのシリンジの最初の使用時に決定される、請求項18又は19のいずれか一項に記載の方法。
- 前記スラック修正量を経時的に繰り返し測定して且つ記憶して、前記少なくとも1つの注入器の前記少なくとも1つの駆動部材のスラック曲線を、時間の関数として作成するステップを更に含む、請求項18から20のいずれか一項に記載の方法。
- 前記少なくとも1つの駆動部材に関する測定されたスラック修正量が、前記少なくとも1つの駆動部材に関する前記スラック曲線に基づいて予期されるスラック修正量と実質的に異なる場合に、ユーザに警告するステップを更に含む、請求項18から21のいずれか一項に記載の方法。
- 流体注入システムのスラックを特徴付けて修正するための方法において、前記方法は、
流体注入器の少なくとも1つの駆動部材を、前記流体注入器に接続される少なくとも1つのシリンジの遠位端まで駆動させるステップと、
前記少なくとも1つの駆動部材を前記少なくとも1つのシリンジの近位端に向けて引き込んで、前記少なくとも1つのシリンジと流体連通する少なくとも1つの流体容器から、前記少なくとも1つのシリンジ内に流体を引き込むステップと、
少なくとも1つのバルブを、前記少なくとも1つのシリンジが前記少なくとも1つの流体容器と流体連通する第1の位置から、前記少なくとも1つのシリンジが前記少なくとも1つの流体容器から分離されて、前記少なくとも1つのシリンジを前記流体注入システムの少なくとも一部から分離する第2の位置に、切り換えるステップと、
前記少なくとも1つの駆動部材への所望の負荷に達するまで、前記少なくとも1つの駆動部材を前記少なくとも1つのシリンジの前記遠位端に向けて駆動させるステップと、
前記少なくとも1つのシリンジ内の前記少なくとも1つの駆動部材の接触位置を測定して記憶するステップと、
前記少なくとも1つのシリンジ内の圧力が、前記少なくとも1つの駆動部材が印加負荷を有さない場合と等しくなるまで、圧力を前記少なくとも1つのシリンジから解放するステップと、
前記少なくとも1つのシリンジ内の前記少なくとも1つの駆動部材の基準位置を測定して記憶するステップであって、当該基準位置において、前記少なくとも1つのシリンジ内の前記圧力が、前記少なくとも1つの駆動部材により印加される前記圧力に等しくなる、ステップと、
前記基準位置と前記接触位置との間の差の少なくとも一部に基づいて、スラック修正量を導き出すステップと、
を含む方法。 - 前記少なくとも1つのシリンジから前記流体を排出するステップと、
前記少なくとも1つのシリンジに、所望量の流体と前記スラック修正量に等しい付加的な量の流体とを充填するステップと、
を更に含み、
前記方法ステップは、前記注入器の前記駆動部材を駆動するモータを制御するように構成されるプロセッサによって実行される、請求項23に記載の方法。 - 前記スラック修正量は、前記少なくとも1つのシリンジの最初の使用時に決定される、請求項23又は24に記載の方法。
- 前記スラック修正量を経時的に繰り返し測定して且つ記憶して、前記少なくとも1つの注入器の前記少なくとも1つの駆動部材のスラック曲線を、時間の関数として作成するステップを更に含む、請求項23から25のいずれか一項に記載の方法。
- 前記少なくとも1つの駆動部材に関する測定されたスラック修正量が、前記少なくとも1つの駆動部材に関する前記スラック曲線に基づいて予期されるスラック修正量と実質的に異なる場合に、ユーザに警告するステップを更に含む、請求項23から26のいずれか一項に記載の方法。
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CN110891630B (zh) | 2022-04-26 |
WO2019046261A1 (en) | 2019-03-07 |
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US11786652B2 (en) | 2023-10-17 |
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