JP6637199B2 - 流量検出器 - Google Patents
流量検出器 Download PDFInfo
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- JP6637199B2 JP6637199B2 JP2018565354A JP2018565354A JP6637199B2 JP 6637199 B2 JP6637199 B2 JP 6637199B2 JP 2018565354 A JP2018565354 A JP 2018565354A JP 2018565354 A JP2018565354 A JP 2018565354A JP 6637199 B2 JP6637199 B2 JP 6637199B2
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- Health & Medical Sciences (AREA)
- Hematology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Measuring Volume Flow (AREA)
Description
100nlから299nlまでの薬剤パルス容量のために、7秒
300nlから399nlまでの薬剤パルス容量のために、6秒
400nlから499nlまでの薬剤パルス容量のために、5秒
500nlから599nlまでの薬剤パルス容量のために、4秒
600nl以上の薬剤パルス容量のために、3秒
Claims (17)
- チャネル結合領域内の流路(20)と取り外し可能に結合し、前記流路(20)内の液体薬剤の流れを検出するための流量検出器(1)であって、
前記流量検出器(1)が、
上流側熱電素子(10a)および下流側熱電素子(10b)と、
上流側付勢要素(15a)および下流側付勢要素(15b)と
を含み、
前記上流側熱電素子(10a)および前記下流側熱電素子(10b)は、互いから離間して配置され、互いから独立して移動可能であり、
前記上流側付勢要素(15a)は、前記上流側熱電素子(10a)に作用することにより、前記上流側熱電素子(10a)を前記チャネル結合領域に向かって付勢し、前記下流側付勢要素(15b)は、前記下流側熱電素子(10b)に作用することにより、前記下流側熱電素子(10b)を前記上流側付勢要素(15a)から独立して前記チャネル結合領域に向かって付勢する、
流量検出器(1)。 - 前記流量検出器は、中間熱電素子(10c)をさらに含み、前記中間熱電素子(10c)は、前記上流側熱電素子(10a)と前記下流側熱電素子(10b)との間に、前記上流側熱電素子(10a)および前記下流側熱電素子(10b)から離間して配置され、前記上流側熱電素子(10a)および前記下流側熱電素子(10b)から独立して移動可能であり、前記流量検出器(1)は、中間付勢要素(15c)を備え、前記中間付勢要素(15c)は、前記中間熱電素子(10c)に作用することにより、前記中間熱電素子(10c)を、前記上流側付勢要素(15a)および前記下流側付勢要素(15b)から独立して前記チャネル結合領域に向かって付勢する、請求項1記載の流量検出器(1)。
- 前記上流側熱電素子(10a)は、加熱要素として動作することによって上流位置(16a)にて前記流路(20)内部の液体を加熱し、上流側温度センサとして動作し、前記上流位置(16a)における上流温度を感知するように構成される、
請求項1記載の流量検出器(1)。 - 前記流量検出器(1)は、第1参照熱電素子(10a’)および第2参照熱電素子(10b’)をさらに含み、前記第1参照熱電素子(10a’)および前記第2参照熱電素子(10b’)は、前記流路(20)に対し熱的に隔離されて配置される、請求項1〜3のいずれか1項に記載の流量検出器(1)。
- 前記上流側熱電素子(10a)は、上流側要素キャリア(11a)上に配置され、前記下流側熱電素子(10b)は、下流側要素キャリア(11b)上に配置され、前記上流側要素キャリア(11a)と前記下流側要素キャリア(11b)との間に間隙(14)が存在する、請求項1〜4のいずれか1項に記載の流量検出器(1)。
- 前記上流側熱電素子(10a)は、上流側可撓性プリント回路基板要素上に配置され、前記下流側熱電素子は、下流側可撓性プリント回路基板要素に取り付けられる、請求項1〜5のいずれか1項に記載の流量検出器(1)。
- 前記上流側熱電素子(10a)は、前記上流側可撓性プリント回路基板要素の、前記チャネル結合領域の反対を向く側に配置され、前記下流側熱電素子(10b)は、前記下流側可撓性プリント回路基板要素の、前記チャネル結合領域の反対を向く側に配置される、請求項6記載の流量検出器(1)。
- 前記流量検出器(1)は、位置決め構造(24)を含み、前記位置決め構造(24)は、前記上流側熱電素子(10a)および前記下流側熱電素子(10b)に対し、前記流路(20)を位置決めするように設計される、請求項1〜7のいずれか1項に記載の流量検出器(1)。
- 前記上流側熱電素子(10a)および前記下流側熱電素子(10b)は、サーミスタである、請求項1〜8のいずれか1項に記載の流量検出器(1)。
- 前記上流側熱電素子(10a)および前記下流側熱電素子(10b)は、負温度係数(NTC)サーミスタである、請求項1〜9のいずれか1項に記載の流量検出器(1)。
- 前記上流側熱電素子(10a)および前記下流側熱電素子(10b)は、異なる電気抵抗のNTCサーミスタである、請求項10記載の流量検出器(1)。
- 前記流量検出器(1)は、評価ユニット(3)を含み、前記評価ユニット(3)は、可変の周波数の出力信号を提供するように設計され、前記周波数は、前記上流側熱電素子(10a)に感知される上流温度と前記下流側熱電素子(10b)に感知される下流温度との差に依存する、請求項1〜11のいずれか1項に記載の流量検出器(1)。
- 動作構成において、流路(20)を備える流体装置(2)の注入装置連結器(25)と取り外し可能に嵌合結合するように設計される流体装置連結器(70)と、
前記流路(20)を介して薬剤容器(5)の中から患者の身体へと液体薬剤を投与するように構成されるポンプ駆動ユニット(4)と、
時間に応じて変化する基礎注入投与速度に応じて連続的に薬剤を投与するために、前記ポンプ駆動ユニット(4)の動作を制御するように構成されるポンプ制御ユニット(6)と、
前記ポンプ制御ユニット(6)と動作結合している、請求項1〜12のいずれか1項に記載の流量検出器(1)と
を含む、
携帯型注入装置(7)。 - 前記ポンプ制御ユニット(6)は、前記ポンプ駆動ユニット(4)を制御して、予め設定されたパルス容量の薬剤パルスを投与するように、および必要とされる基礎投与速度に応じて連続するパルス間の時間を変化させるように構成され、前記流量検出器は、前記薬剤パルスの投与のために断続的に動作されるように構成される、請求項13記載の携帯型注入装置(7)。
- 流路(20)内の液体薬剤の流れを検出するために、流量検出器(1)を流路(20)に取り外し可能に結合する方法であって、
前記方法が、
上流側熱電素子(10a)および下流側熱電素子(10b)を前記流路(20)に取り外し可能に結合することであって、前記上流側熱電素子(10a)および前記下流側熱電素子(10b)は、前記流路(20)の延在方向に沿って、互いから離間して配置され、互いから独立して移動可能である、上流側熱電素子(10a)および下流側熱電素子(10b)を前記流路(20)に取り外し可能に結合することと、
前記上流側熱電素子(10a)を前記流路(20)に向けて付勢し、前記下流側熱電素子を独立的に前記流路(20)に向けて付勢することと
を含む、
方法。 - 流路(20)内の液体薬剤流を検出する方法であって、
前記方法が、
上流側熱電素子(10a)および下流側熱電素子(10b)を前記流路(20)に取り外し可能に結合することであって、前記上流側熱電素子(10a)および前記下流側熱電素子(10b)は、前記流路(20)の延在方向に沿って互いから離間して配置され、互いから独立して移動可能である、上流側熱電素子(10a)および下流側熱電素子(10b)を前記流路(20)に取り外し可能に結合することと、
前記上流側熱電素子(10a)を前記流路(20)に向けて付勢し、前記下流側熱電素子を独立的に前記流路(20)に向けて付勢することと、
下流側温度センサとして動作し、下流位置(16b)における下流温度を感知するように前記下流側熱電素子(10b)を制御することと、
加熱要素として動作することによって、上流位置(16a)にて前記流路(20)内の液体を加熱するように、および上流側温度センサとして動作し、前記上流位置(16a)における上流温度を感知するように前記上流側熱電素子を制御することと
を含む、
方法。 - 前記方法が、第1参照熱電素子(10a’)および第2参照熱電素子(10b’)を設けることをさらに含み、前記第1参照熱電素子(10a’)および前記第2参照熱電素子(10b’)は、前記流路(20)に対し、熱的に隔離されて配置され、
前記方法が、
前記上流側熱電素子(10a)および前記下流側熱電素子(10b)により提供される信号を処理することによって、流れに応じた出力信号を判定することと、
前記第1参照熱電素子(10a’)および前記第2参照熱電素子(10b’)により提供される信号を処理することによって、独立的に参照出力信号を判定することと、
前記流れに応じた出力信号と前記参照出力信号との関係を評価することと
をさらに含む、
請求項15または16記載の方法。
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EP16187465.6 | 2016-09-06 | ||
PCT/EP2017/066901 WO2018007502A1 (en) | 2016-07-08 | 2017-07-06 | Flow detector |
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EP2457602A1 (en) | 2010-11-25 | 2012-05-30 | F. Hoffmann-La Roche AG | Infusion pump having dosing unit with safety valve |
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