JP2020512867A - カテーテル閉塞を防止するシステムおよび方法 - Google Patents
カテーテル閉塞を防止するシステムおよび方法 Download PDFInfo
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- A61M39/10—Tube connectors; Tube couplings
- A61M39/16—Tube connectors; Tube couplings having provision for disinfection or sterilisation
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Abstract
Description
Claims (20)
- 静脈内カテーテルの閉塞を防ぐ方法であって、送信機を介して、第1のエネルギー波をカテーテルアダプタの静脈内カテーテルの長さに沿って第1の周波数で送信するステップと、
トランスデューサを介して、前記静脈内カテーテルから反射して戻ってくる第1のエネルギー波の一部を対応する電気信号に変換するステップと、
前記トランスデューサに結合されたプロセッサで前記電気信号を受信するステップと、
前記電気信号をベースライン電気信号と比較して前記電気信号と前記ベースライン電気信号との差を決定するステップと、
前記電気信号とベースライン電気信号との前記差が閾値未満であることに応答して、第2のエネルギー波を、前記送信機または別の送信機を介して、前記カテーテルアダプタの前記静脈内カテーテルの前記長さに沿って第1の周波数より大きな第2の周波数で送信するステップであって、前記第2のエネルギー波は前記静脈内カテーテル内の血餅の形成を減少させるステップと
を含むことを特徴とする方法。 - 前記第2の周波数は、300MHzから300GHzの間であることを特徴とする請求項1に記載の方法。
- 前記第1の周波数は、300MHz以下であることを特徴とする請求項2に記載の方法。
- 前記電気信号と前記ベースライン電気信号との前記差が前記閾値を満たすことに応答して、前記第2のエネルギー波を前記カテーテルアダプタの前記静脈内カテーテルの前記長さに沿って送信するステップを停止するステップをさらに含むことを特徴とする請求項1に記載の方法。
- 前記第1および第2のエネルギー波は、超音であることを特徴とする請求項1に記載の方法。
- 前記トランスデューサは、前記内部ルーメンの壁に埋め込まれるか、またはカプセル化されることを特徴とする請求項1に記載の方法。
- 前記トランスデューサおよび前記送信機は、同じ圧電素子を含むことを特徴とする請求項1に記載の方法。
- 前記ベースライン電気信号を決定するステップであって、前記ベースライン電気信号を決定するステップは、前記静脈内カテーテルが閉塞されていないときに、前記送信機を介して、第3のエネルギー波を前記静脈内カテーテルの前記長さに沿って前記第1の周波数で送信するステップと、
前記静脈内カテーテルから反射して戻ってくる前記第3のエネルギー波の一部を前記ベースライン電気信号に変換するステップと
をさらに含むことを特徴とする請求項1に記載の方法。 - 前記静脈カテーテルの先端チップの外面が複数のファセットを含むことを特徴とすることを特徴とする請求項1に記載の方法。
- 静脈内カテーテルの閉塞を防ぐシステムであって、
筐体を備え、前記筐体は、
1つまたは複数の送信機であって、前記1つまたは複数の送信機は第1のエネルギー波をカテーテルアダプタの静脈内カテーテルの長さに沿って第一周波数で送信し、前記1つまたは複数の送信機はまた、第2のエネルギー波も前記カテーテルアダプタの前記静脈内カテーテルの前記長さに沿って第2の周波数で送信し、前記第2の周波数は前記第1の周波数よりも大きい、1つまたは複数の送信機と、
前記静脈内カテーテルから反射して戻ってくる前記第1のエネルギー波の一部を検出するように構成された1つまたは複数のトランスデューサと、
前記送信機に結合されたプロセッサであって、前記プロセッサは前記静脈内カテーテルから反射して戻ってくる前記第1のエネルギー波の前記一部に対応する電気信号を受信し、前記電気信号とベースライン電気信号とを比較して前記電気信号と前記ベースライン電気信号との間の差を決定することを特徴とするプロセッサと
を含む、システム。 - 前記1つまたは複数の送信機は、前記電気信号と前記ベースライン電気信号との前記差が閾値未満であることに応答して、前記第2のエネルギー波を前記静脈内カテーテルの前記長さに沿って前記第2の周波数で送信する、請求項10に記載のシステム。
- 前記1つまたは複数の送信機は、前記電気信号と前記ベースライン電気信号との前記差が前記閾値を満たすことに応答して、前記第2のエネルギー波を前記静脈内カテーテルの長さに沿って前記第2の周波数で送信することを防止することを特徴とする請求項10に記載のシステム。
- 前記1つまたは複数のトランスデューサは、第1のトランスデューサおよび第2のトランスデューサを含み、前記第1のトランスデューサは、第1の圧電結晶を含み、前記第2のトランスデューサは、第2の圧電結晶を含み、前記第1および第2の圧電結晶は前記内部ルーメンの壁に埋め込まれるまたはカプセル化されることを特徴とする請求項10に記載のシステム。
- 前記静脈内カテーテルの先端チップの外面は、複数のファセットを含むことを特徴とする請求項10に記載のシステム。
- 前記静脈内カテーテルの内部ルーメンを形成する壁は、導入針と接触するように構成された前記静脈内カテーテルの先端チップの一部から近接して延出する1つまたは複数の内部湾曲部を含むことを特徴とする請求項10に記載のシステム。
- 前記1つまたは複数の送信機は、前記第2のエネルギー波をパルスで前記カテーテルアダプタの静脈内カテーテルの長さに沿って前記第2の周波数で送信することを特徴とする請求項10に記載のシステム。
- 前記第2の周波数は、300から700kHzの間であることを特徴とする請求項10に記載のシステム。
- 前記第1の周波数は、300kHz以下であることを特徴とする請求項10に記載のシステム。
- 静脈内カテーテルの閉塞を防ぐ方法であって、送信機を介して、エネルギー波をカテーテルアダプタに結合された静脈内カテーテルの長さに沿って送信するステップであって、前記エネルギー波は超音波、音波、または電磁波であることを特徴とするステップを含むことを特徴とする方法。
- 前記送信機は、前記エネルギー波を前記静脈内カテーテルの前記長さに沿って一定間隔でまたは連続的に送信することを特徴とする請求項19に記載の方法。
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US15/477,587 US10328251B2 (en) | 2017-04-03 | 2017-04-03 | Systems and methods to prevent catheter occlusion |
PCT/US2018/021405 WO2018186985A1 (en) | 2017-04-03 | 2018-03-07 | Systems and methods to prevent catheter occlusion |
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WO2018125845A1 (en) | 2016-12-27 | 2018-07-05 | Vasonics, Llc | Catheter housing |
CN111065340B (zh) * | 2017-09-28 | 2022-09-20 | 波士顿科学国际有限公司 | 基于频率调节沿血管内超声成像系统的信号路径的系统和方法 |
WO2019237013A1 (en) * | 2018-06-08 | 2019-12-12 | Mayo Foundation For Medical Education And Research | Systems, methods, and media for real-time spatial tracking of minimally invasive instruments and components using selective color doppler markers |
CN111904473A (zh) * | 2020-08-12 | 2020-11-10 | 山东大学齐鲁医院(青岛) | 一种经食管超声介入辅助装置 |
CN112370079B (zh) * | 2020-11-18 | 2022-08-26 | 景德镇陶瓷大学 | 一种利用超声多普勒检测血栓的方法 |
WO2023146959A1 (en) * | 2022-01-27 | 2023-08-03 | Becton, Dickinson And Company | Utilizing ultrasound waves for infection prevention in vascular access devices |
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JP2534047B2 (ja) * | 1985-10-15 | 1996-09-11 | グリ−ンフエルド,アルバ−ト,ア−ル | 排液及び投薬機能を備えた超音波自己洗浄型カテ―テルシステム |
JP2005527287A (ja) * | 2002-05-29 | 2005-09-15 | ナノビブロニクス・インコーポレイテッド | カテーテルに付着した生物膜を処理するための方法、装置及びシステム |
JP2009090093A (ja) * | 2007-08-17 | 2009-04-30 | Searete Llc | 自己滅菌装置 |
US20110160643A1 (en) * | 2007-08-17 | 2011-06-30 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | Systems, devices, and methods including catheters having acoustically actuatable waveguide components for delivering a sterilizing stimulus to a region proximate a surface of the catheter |
JP2013543410A (ja) * | 2010-10-18 | 2013-12-05 | キンバリー クラーク ワールドワイド インコーポレイテッド | エコー源性神経ブロック装置およびシステム |
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CA1335167C (en) | 1988-01-25 | 1995-04-11 | Steven C. Jepson | Pre-slit injection site and associated cannula |
JP2534047Y2 (ja) | 1990-08-30 | 1997-04-30 | 富士ゼロックス株式会社 | 厚膜型サーマルヘッド |
US20060241524A1 (en) * | 2005-03-11 | 2006-10-26 | Qi Yu | Intravascular ultrasound catheter device and method for ablating atheroma |
US10463778B2 (en) * | 2007-02-09 | 2019-11-05 | Baxter International Inc. | Blood treatment machine having electrical heartbeat analysis |
CA3166875A1 (en) | 2008-01-25 | 2009-10-01 | The Cleveland Clinic Foundation | Methods and devices to clear obstructions from medical tubes |
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JP2534047B2 (ja) * | 1985-10-15 | 1996-09-11 | グリ−ンフエルド,アルバ−ト,ア−ル | 排液及び投薬機能を備えた超音波自己洗浄型カテ―テルシステム |
JP2005527287A (ja) * | 2002-05-29 | 2005-09-15 | ナノビブロニクス・インコーポレイテッド | カテーテルに付着した生物膜を処理するための方法、装置及びシステム |
JP2009090093A (ja) * | 2007-08-17 | 2009-04-30 | Searete Llc | 自己滅菌装置 |
US20110160643A1 (en) * | 2007-08-17 | 2011-06-30 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | Systems, devices, and methods including catheters having acoustically actuatable waveguide components for delivering a sterilizing stimulus to a region proximate a surface of the catheter |
JP2013543410A (ja) * | 2010-10-18 | 2013-12-05 | キンバリー クラーク ワールドワイド インコーポレイテッド | エコー源性神経ブロック装置およびシステム |
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SG11201909007QA (en) | 2019-10-30 |
MY195641A (en) | 2023-02-03 |
CN110621371A (zh) | 2019-12-27 |
EP3606591A1 (en) | 2020-02-12 |
AU2018249369B2 (en) | 2023-10-05 |
MX2019011529A (es) | 2019-12-05 |
US10328251B2 (en) | 2019-06-25 |
WO2018186985A1 (en) | 2018-10-11 |
CA3058615A1 (en) | 2018-10-11 |
BR112019020709A2 (pt) | 2020-05-12 |
US11383074B2 (en) | 2022-07-12 |
AU2018249369A1 (en) | 2019-10-24 |
CN110621371B (zh) | 2022-10-11 |
JP7154223B2 (ja) | 2022-10-17 |
US20190275315A1 (en) | 2019-09-12 |
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