JP7280347B2 - 医療装置におけるセンサ干渉の低減 - Google Patents
医療装置におけるセンサ干渉の低減 Download PDFInfo
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Description
に基づき決定されることができる。
が満たされる必要がある。ここで、αは、長さ方向124に関して上記で規定された鋭角であり、Dは、細長いインターベンション装置101の円形断面の直径である。Wが上記値を超えるように配置することで、連続した螺旋のターンが互いに重なる。同様に、Wがこの値よりも小さくなるように配置することで、連続した螺旋のターンの間に小さな隙間が設けられることができる。
導電体104、105の少なくとも1つと、i)導電体104、105に重なる導電性シールド106及び/又はii)導電性シャフト107との間の容量CAdj1、CAdj2を調整するステップを有し、導電体104、105の少なくとも1つにおける電気信号への干渉の大きさが調整される。
導電体104、105の少なくとも1つにおける検出された干渉を示す信号を受信するステップと、
受信した信号に基づき、容量CAdj1、CAdj2を調整するステップとを含むことができる。
Claims (12)
- 医療センシングシステムであって、
細長いインターベンション装置と、
調整可能な容量回路とを有し、
前記細長いインターベンション装置が、
容量を持つセンサであって、前記細長いインターベンション装置に配置されるセンサと、
第1の導電体及び第2の導電体であって、前記第1の導電体及び前記第2の導電体が、前記センサと電気的に接触し、前記センサにより検出された信号に対応する電気信号を提供するために前記細長いインターベンション装置に沿って延びている、第1の導電体及び前記第2の導電体と、
i)前記導電体に重なる導電性シールド及び/又はii)導電性シャフトとを含み、
前記第1の導電体及び前記第2の導電体がそれぞれ、前記導電性シールド及び/又は前記導電性シャフトに対する浮遊容量を持ち、
前記調整可能な容量回路は、前記導電体の少なくとも1つと、i)前記導電体に重なる導電性シールド及び/又はii)前記導電性シャフトとの間に調整可能な容量を提供し、
前記調整可能な容量回路が、前記各導電体と、i)前記導電体に重なる導電性シールド及び/又はii)前記導電性シャフトとの間で測定された浮遊容量の差に基づき、前記調整可能な容量を制御する、医療センシングシステム。 - 前記調節可能な容量が、各導電体と、i)前記導電体に重なる導電性シールド、及び/又はii)前記導電性シャフトとの間に、同様の総容量が提供されるように調節される、請求項1に記載の医療センシングシステム。
- 前記調整可能な容量回路が、前記第1の導電体及び/又は前記第2の導電体において検出された干渉信号を示す電気信号を受信する少なくとも1つの入力を有し、
前記調整可能な容量回路は更に、前記検出された干渉信号に基づき、前記調整可能な容量を制御する、請求項1に記載の医療センシングシステム。 - 前記調整可能な容量回路が、バラクターダイオードを有する、請求項1乃至3のいずれかに記載の医療センシングシステム。
- 差動増幅器を更に有し、
前記差動増幅器が、前記第1の導電体及び前記第2の導電体のそれぞれと電気的に通信しており、前記第1の導電体における電気信号と前記第2の導電体における電気信号との間の増幅された差に対応する出力信号を提供する、請求項1乃至4のいずれかに記載の医療センシングシステム。 - 前記細長いインターベンション装置が、i)前記導電体に重なる導電性シールド、及びii)導電性シャフトを有し、
前記導電性シールドは、前記導電性シャフトに電気的に接続される、請求項1乃至5のいずれかに記載の医療センシングシステム。 - 前記センサが、超音波信号を検出する、請求項1乃至6のいずれかに記載の医療センシングシステム。
- コンソール又は電気コネクタと、電気ケーブルとを更に有し、
前記調節可能な容量回路が、前記コンソール又は前記電気コネクタに配置され、
前記電気ケーブルは、前記調整可能な容量回路を、前記第1の導電体と、前記第2の導電体と、i)前記導電体に重なる前記導電性シールド及び/又はii)前記導電性シャフトとに接続する、請求項1乃至7のいずれかに記載の医療センシングシステム。 - 前記センサが、超音波センサであり、
前記システムは更に、
超音波場を生成するビームフォーミング超音波撮像プローブと、
前記ビームフォーミング超音波撮像プローブの超音波場に対応する再構成された超音波画像を提供する画像再構成ユニットと、
前記ビームフォーミング超音波撮像プローブと前記超音波センサとの間で送信された超音波信号に基づき、前記超音波場に対応する前記インターベンション装置の前記超音波センサの位置を計算し、前記計算された超音波センサの位置に基づき、前記再構成された超音波画像内のアイコンを提供する位置決定ユニットとを有する、請求項1乃至8のいずれかに記載の医療センシングシステム。 - 医療センシングシステムの作動方法において、前記システムが、細長いインターベンション装置に配置された容量を持つセンサと、第1の導電体及び第2の導電体であって、前記センサと電気的に接触しており、前記センサにより検出された信号に対応する電気信号を提供するために前記細長いインターベンション装置に沿って延びている、第1の導電体及び第2の導電体と、i)前記導電体に重なる導電性のシールド及び/又はii)前記導電性のシャフトと、調整可能な容量回路とを含み、前記第1の導電体及び前記第2の導電体のそれぞれが、前記導電性シールド及び/又は前記導電性シャフトへの浮遊容量を持っており、前記調整可能な容量回路が、前記導電体の少なくとも1つと、i)前記導電体に重なる導電性シールド及び/又はii)前記導電性シャフトとの間に調整可能な容量を提供し、前記方法は、
前記調整可能な容量回路が、前記各導電体と、i)前記導電体に重なる導電性シールド及び/又はii)前記導電性シャフトとの間で測定された浮遊容量の差に基づき、前記調整可能な容量を制御するステップを有する、医療センシングシステムの作動方法。 - 前記システムが、前記導電体の少なくとも1つの上で検出された干渉を示す信号を受信するステップと、
前記システムが、前記受信した信号に基づき、前記容量を調整するステップと、
を更に有する、請求項10に記載の作動方法。 - プロセッサ上で実行されるとき、前記プロセッサに請求項10に記載の作動方法の前記ステップを実行させる命令を有するコンピュータプログラム。
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Application Number | Priority Date | Filing Date | Title |
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US201862716154P | 2018-08-08 | 2018-08-08 | |
US62/716,154 | 2018-08-08 | ||
EP18198776.9A EP3632335A1 (en) | 2018-10-05 | 2018-10-05 | Reducing sensor interference in a medical device |
EP18198776.9 | 2018-10-05 | ||
PCT/EP2019/070296 WO2020030453A1 (en) | 2018-08-08 | 2019-07-29 | Reducing sensor interference in a medical device |
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JP7280347B2 true JP7280347B2 (ja) | 2023-05-23 |
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US (1) | US11751952B2 (ja) |
EP (1) | EP3632335A1 (ja) |
JP (1) | JP7280347B2 (ja) |
CN (1) | CN112566560A (ja) |
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EP3632335A1 (en) | 2018-10-05 | 2020-04-08 | Koninklijke Philips N.V. | Reducing sensor interference in a medical device |
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US20070268272A1 (en) | 2006-05-19 | 2007-11-22 | N-Trig Ltd. | Variable capacitor array |
US20140018668A1 (en) | 2012-07-12 | 2014-01-16 | Covidien Lp | System and method for detecting critical structures using ultrasound |
EP3632335A1 (en) | 2018-10-05 | 2020-04-08 | Koninklijke Philips N.V. | Reducing sensor interference in a medical device |
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EP1622677B1 (en) * | 2003-04-02 | 2013-09-18 | Medtronic, Inc. | Device for preventing magnetic-device imaging induced damage |
US8509876B2 (en) * | 2004-08-09 | 2013-08-13 | The Johns Hopkins University | Implantable MRI compatible stimulation leads and antennas and related systems and methods |
CN100544195C (zh) * | 2004-08-16 | 2009-09-23 | 李应流 | 线性电容测量和非接触开关 |
US7885704B2 (en) * | 2004-11-15 | 2011-02-08 | Medrad, Inc. | Intracavity probes and interfaces therefor for use in obtaining images and spectra of intracavity structures using high field magnetic resonance systems |
WO2007047966A2 (en) * | 2005-10-21 | 2007-04-26 | Surgi-Vision, Inc. | Mri-safe high impedance lead systems |
US8423138B2 (en) * | 2010-12-21 | 2013-04-16 | Biotronik Se & Co. Kg | Implantable device for transmitting therapeutic and diagnostic signals |
JP6050309B2 (ja) * | 2011-03-25 | 2016-12-21 | イアンディスEandis | 高電圧測定システム |
EP3128924B1 (en) * | 2014-04-11 | 2020-06-10 | Koninklijke Philips N.V. | Signal versus noise discrimination needle with piezoelectric polymer sensors |
CN106165213B (zh) | 2014-04-11 | 2019-02-01 | 皇家飞利浦有限公司 | 用于针与压电聚合物传感器的连接器 |
EP3435874B8 (en) * | 2016-03-31 | 2020-04-01 | Koninklijke Philips N.V. | Wireless position determination |
CN109982648A (zh) * | 2016-11-24 | 2019-07-05 | 皇家飞利浦有限公司 | 降低医学设备中的电磁干扰 |
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2018
- 2018-10-05 EP EP18198776.9A patent/EP3632335A1/en not_active Withdrawn
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2019
- 2019-07-29 US US17/265,635 patent/US11751952B2/en active Active
- 2019-07-29 JP JP2021503869A patent/JP7280347B2/ja active Active
- 2019-07-29 CN CN201980052899.2A patent/CN112566560A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US20030048698A1 (en) | 2001-09-07 | 2003-03-13 | Siemens Medical Systems, Inc. | Bias control of electrostatic transducers |
US20070268272A1 (en) | 2006-05-19 | 2007-11-22 | N-Trig Ltd. | Variable capacitor array |
US20140018668A1 (en) | 2012-07-12 | 2014-01-16 | Covidien Lp | System and method for detecting critical structures using ultrasound |
US20210298840A1 (en) | 2018-08-08 | 2021-09-30 | Koninklijke Philips N.V. | Reducing sensor interference in a medical device |
EP3632335A1 (en) | 2018-10-05 | 2020-04-08 | Koninklijke Philips N.V. | Reducing sensor interference in a medical device |
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US11751952B2 (en) | 2023-09-12 |
CN112566560A (zh) | 2021-03-26 |
EP3632335A1 (en) | 2020-04-08 |
JP2021524352A (ja) | 2021-09-13 |
US20210298840A1 (en) | 2021-09-30 |
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