JP2016529069A - 低体温療法のための温度測定およびフィードバック - Google Patents
低体温療法のための温度測定およびフィードバック Download PDFInfo
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Abstract
Description
本出願は、2013年9月8日に出願された米国仮出願番号第61/875,093号(代理人書類番号32138−707.101)の利益を主張しており、この仮出願の全体の内容は本明細書中に参考として援用される。
(1.発明の分野)
本発明は、概して、患者の体温の選択的改変および制御のための、患者の気道および肺との熱交換のためのシステムおよび方法に関する。より具体的には、これは、呼気温度を監視しながら、凍結粒子を患者の呼吸器系に導入することによって、患者の深部体温を制御するためのシステムおよび方法に関する。
米国特許第8,100,123号(特許文献1)、第8,281,786号(特許文献2)、第8,402,968号(特許文献3)、および米国特許出願公開第2013/0085554号(特許文献4)が、前述されている。米国特許出願公開第2013/0226077号(特許文献5)は、随意に、相変化流体を腹腔に送達する、腹腔低体温システムにおいて呼気温度を監視するステップを説明している。
第1の側面では、本発明は、患者の深部体温を低下させるための方法を提供する。この方法は、一連の吸入サイクルの間に、患者の呼吸器系に呼吸ガスを送達するステップを含む。呼吸器系は、肺と、気管と、副鼻腔と、鼻腔とを含む。呼吸ガスに加えて、凍結粒子もまた、吸入サイクルのうちのいくつかの少なくとも一部の間に、呼吸器系に送達される。粒子は、通常、氷であり、殆どまたは完全に、水または生理食塩水を含むが、また、融解または昇華のエンタルピの結果として、体熱を吸収するように融解または昇華し得る、凍結二酸化炭素または他の非毒性材料でもあり得る。吐出されるガスの温度は、少なくともいくつかの呼気サイクルの間に測定され、患者に送達される凍結粒子の量は、吐出されるガスの測定される温度に基づいて標的深部体温を達成するために、調節され得る。
本発明の方法およびシステムは、氷または他の非毒性の生物学的に適合性の凍結粒子を、患者の肺または呼吸器系の他の領域中に導入することによって、患者において低体温を誘導する。凍結粒子の融解または昇華は、肺および呼吸管の他の領域を急速に冷却する、高速度のエンタルピ熱吸収を提供し、したがって、肺の中の血液を冷却し、これは、順に、冷却された血液が患者を通して循環されるにつれて、心臓および脳だけではなく、身体の深部および四肢も冷却するように流れる。
Claims (19)
- 患者の深部体温を低下させるための方法であって、
一連の吸入サイクルの間に、前記患者の呼吸器系に呼吸ガスを送達するステップと、
前記吸入サイクルのうちのいくつかの少なくとも一部の間に、前記呼吸器系に凍結粒子を送達するステップと、
少なくともいくつかの呼気サイクルの間に、吐出されるガスの温度を測定するステップと、
呼気ガスの測定される温度に基づいて標的深部体温を達成するために、前記患者に送達される前記凍結粒子の量を調節するステップと、
を含む、方法。 - 前記呼吸ガスは、呼吸マスクを通して送達される、請求項1に記載の方法。
- 前記呼吸ガスは、気管内チューブを通して送達される、請求項1に記載の方法。
- 前記凍結粒子は、呼吸マスクを通して送達される、請求項1に記載の方法。
- 前記凍結粒子は、気管内チューブを通して送達される、請求項1に記載の方法。
- 前記凍結粒子は、凍結水を含む、請求項1に記載の方法。
- 前記量を調節するステップは、個々の吸入サイクルの間に送達される前記凍結粒子の持続時間を調節するステップを含む、請求項1に記載の方法。
- 前記量を調節するステップは、個々の吸入サイクルの間の前記凍結粒子送達の速度を調節するステップを含む、請求項1に記載の方法。
- 少なくとも、前記深部体温を前記標的深部体温まで急速に低下させるために十分な量の前記凍結粒子が送達される初期相と、より少ない量の前記凍結粒子または他の冷却媒体が、前記標的深部体温を維持するために送達される維持相とを含む、請求項1に記載の方法。
- 患者の深部体温を低下させるためのシステムであって、
患者の呼吸器系に、呼吸ガスと、所定量の凍結粒子とを送達するように構成される、少なくとも1つの導管と、
前記少なくとも1つの導管を通して吐出されているガスの温度を測定するように構成される、温度センサと、
前記少なくとも1つの導管を通した凍結粒子の送達の量または速度を調節するように構成されるコントローラであって、それによって、前記患者の標的深部体温は、前記吐出されるガスの温度における変化に応答して、前記凍結粒子の送達の量または速度を調節することによって、達成および維持され得る、コントローラと、
を備える、システム。 - 前記呼吸ガスを送達するための1つの導管と、前記凍結粒子を送達するための別個の導管とを備える、請求項10に記載のシステム。
- 前記1つの導管はまた、呼気経路も提供する、請求項11に記載のシステム。
- 前記少なくとも1つの導管は、気管内チューブを備える、請求項10に記載のシステム。
- 前記コントローラは、フィードバックアルゴリズムに従って、前記温度センサによって測定される呼気温度に応答して、前記凍結粒子の送達の量または速度を自動的に制御するように構成される、請求項10に記載のシステム。
- 前記コントローラは、ユーザが、前記温度センサによって測定される前記呼気温度に応答して、前記凍結粒子の送達量または速度を手動で制御することを可能にするように構成される、請求項10に記載のシステム。
- 前記コントローラは、システムセンサがアラーム状態を検出するとき、可聴または視覚信号を提供するアラームを含む、請求項10に記載のシステム。
- 前記アラーム状態は、下閾値レベルを下回る呼気温度と、肺水腫とから成る群から選択される、請求項16に記載のシステム。
- 前記センサは、肺液検出器と、吐出されるガスの湿度検出器と、吐出されるガスの血液検出器と、吐出されるガスのタンパク質検出器とから成る群から選択される、請求項17に記載のシステム。
- 前記コントローラはさらに、前記アラーム状態が検出される場合、前記凍結粒子の送達を減少または停止させるための手段を含む、請求項17に記載のシステム。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361875093P | 2013-09-08 | 2013-09-08 | |
US61/875,093 | 2013-09-08 | ||
US14/479,128 | 2014-09-05 | ||
US14/479,128 US10238831B2 (en) | 2013-09-08 | 2014-09-05 | Temperature measurement and feedback for therapeutic hypothermia |
PCT/US2014/054579 WO2015035315A2 (en) | 2013-09-08 | 2014-09-08 | Temperature measurment and feedback for therapeutic hypothermia |
Publications (2)
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Cited By (3)
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JP6255558B1 (ja) * | 2016-09-26 | 2018-01-10 | 株式会社メトラン | 呼吸補助装置、呼吸補助方法 |
JP2018051323A (ja) * | 2016-09-26 | 2018-04-05 | 株式会社メトラン | 呼吸補助装置、呼吸補助方法 |
US11305080B2 (en) | 2016-09-26 | 2022-04-19 | Metran Co., Ltd. | Respiratory assistance device and respiratory assistance method |
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JP5713406B2 (ja) * | 2008-12-02 | 2015-05-07 | クール セラピューティクス, インコーポレイテッド | 微細氷粒子を有する呼吸ガスの送達のためのシステム |
US10238831B2 (en) * | 2013-09-08 | 2019-03-26 | Qool Therapeutics, Inc. | Temperature measurement and feedback for therapeutic hypothermia |
WO2016138045A1 (en) | 2015-02-23 | 2016-09-01 | Qool Therapeutics, Inc. | Systems and methods for endotracheal delivery of frozen particles |
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- 2014-09-08 EP EP14842468.2A patent/EP3041442B1/en not_active Not-in-force
- 2014-09-08 WO PCT/US2014/054579 patent/WO2015035315A2/en active Application Filing
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JP6255558B1 (ja) * | 2016-09-26 | 2018-01-10 | 株式会社メトラン | 呼吸補助装置、呼吸補助方法 |
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Also Published As
Publication number | Publication date |
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CN105611904A (zh) | 2016-05-25 |
WO2015035315A3 (en) | 2015-05-28 |
WO2015035315A2 (en) | 2015-03-12 |
CN105611904B (zh) | 2018-09-25 |
EP3417839A1 (en) | 2018-12-26 |
US20190175866A1 (en) | 2019-06-13 |
EP3041442A4 (en) | 2017-06-14 |
EP3417839B1 (en) | 2020-08-26 |
EP3041442A2 (en) | 2016-07-13 |
US20150068525A1 (en) | 2015-03-12 |
US10238831B2 (en) | 2019-03-26 |
US11357949B2 (en) | 2022-06-14 |
EP3041442B1 (en) | 2018-11-07 |
JP6479016B2 (ja) | 2019-03-06 |
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