JP2020529885A - 血管内超音波撮像システムに沿った信号経路に対して周波数ベースの調整を行うためのシステムおよび方法 - Google Patents
血管内超音波撮像システムに沿った信号経路に対して周波数ベースの調整を行うためのシステムおよび方法 Download PDFInfo
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- A—HUMAN NECESSITIES
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- A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
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- A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
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- A—HUMAN NECESSITIES
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- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
- A61B8/4461—Features of the scanning mechanism, e.g. for moving the transducer within the housing of the probe
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- A—HUMAN NECESSITIES
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- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
- A61B8/4494—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer characterised by the arrangement of the transducer elements
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- A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
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- G01S15/8938—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a dynamic transducer configuration using transducers mounted for mechanical movement in two dimensions
- G01S15/894—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a dynamic transducer configuration using transducers mounted for mechanical movement in two dimensions by rotation about a single axis
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- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
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- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
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Abstract
Description
Claims (15)
- 駆動ユニットと血管内超音波撮像システムとの間の導電経路に沿って伝搬される電気信号を調整するためのアダプタにおいて、前記アダプタは、
第1の端部と第2の端部とを備えるハウジングと、
前記ハウジングの第1の端部に沿って配置されて、カテーテルを受承するカテーテルコネクタと、
前記ハウジングの第2の端部に沿って配置されて、前記アダプタを前記駆動ユニットに連結する駆動ユニットコネクタと、
前記ハウジングの第1の端部に沿って配置されて、前記カテーテルに沿って延びる少なくとも1つのトランスデューサ導体に対して電気的に接続されるカテーテル導体インターフェースと、
前記ハウジングの第2の端部に沿って配置されて、前記駆動ユニットの少なくとも1つの電気伝導体に対して電気的に接続される駆動ユニット導体インターフェースと、
前記カテーテル導体インターフェースを前記駆動ユニット導体インターフェースに対して電気的に接続される少なくとも1つのアダプタ導体と、
前記少なくとも1つのアダプタ導体に対して電気的に接続され、前記カテーテルに配置された少なくとも1つのトランスデューサの動作周波数に少なくとも部分的に基づいて前記少なくとも1つのアダプタ導体に沿って伝搬する電気信号を調整する少なくとも1つチューニング要素と、
を備えるアダプタ。 - 前記ハウジングに配置されて、前記カテーテルコネクタから前記駆動ユニットコネクタまで延びる回転可能なシャフトをさらに備え、前記回転可能なシャフトは、前記カテーテルが前記カテーテルコネクタに受承されて前記アダプタが前記駆動ユニットに連結されている場合に、前記カテーテル内の駆動ケーブルまたは駆動シャフトに対して前記駆動ユニット内で生成された回転を伝達する、請求項1に記載のアダプタ。
- 前記少なくとも1つのチューニング要素は、前記回転可能なシャフト内に全体的に配置される、請求項2に記載のアダプタ。
- 前記ハウジング内に配置された回転変圧器をさらに備える、請求項2または3に記載のアダプタ。
- 前記ハウジング内に配置された送信機または受信機をさらに備える請求項1〜4のいずれか一項に記載のアダプタ。
- 前記ハウジングに沿って配置されたカテーテル離脱部をさらに備え、前記カテーテル離脱部は、前記カテーテルが前記カテーテルコネクタに受承されている場合に、前記カテーテルを前記アダプタから手動で離脱できるように構成されている、請求項1〜5のいずれか一項に記載のアダプタ。
- 前記少なくとも1つのチューニング要素は、少なくとも1つのフィルタを備える、請求項1〜6のいずれか一項に記載のアダプタ。
- 前記少なくとも1つのチューニング要素は、少なくとも1つのコモンモードチョークを備える、請求項1〜7のいずれか一項に記載のアダプタ。
- 前記少なくとも1つのチューニング要素は、少なくとも1つのチューニング回路を備える、請求項1〜8のいずれか一項に記載のアダプタ。
- 前記少なくとも1つのチューニング要素は、前記少なくとも1つのアダプタ導体に沿って伝搬される信号を調整して、前記血管内超音波撮像システムで生成される画像のノイズを低減する、請求項1〜9のいずれか一項に記載のアダプタ。
- 前記少なくとも1つのチューニング要素は、電気信号が第1の周波数範囲に入る前記カテーテルの前記少なくとも1つのトランスデューサの動作周波数に対応する場合、前記少なくとも1つのアダプタ導体に沿って伝搬する電気信号を調節する、請求項1〜10のいずれか一項に記載のアダプタ。
- 前記第1の周波数範囲は、5MHzより大きく65MHzより小さい、請求項11に記載のアダプタ。
- 前記第1の周波数範囲は、5MHzより大きく35MHzより小さい、請求項11に記載のアダプタ。
- 前記第1の周波数範囲は、35MHzより大きく65MHzより小さい、請求項11に記載のアダプタ。
- 一定の長手方向の長さと、遠位部と、近位部とを有するカテーテルであって、前記カテーテルの少なくとも一部に沿って延びるルーメンを画定する前記カテーテルと、
前記カテーテルの前記遠位部に沿って前記ルーメンに配置される撮像装置のハウジングと、
前記撮像装置のハウジングに配置された少なくとも1つの超音波トランスデューサであって、付与された電気信号を動作周波数を中央に置く周波数帯域幅の範囲内の聴覚信号に変換して、前記聴覚信号を伝達して、対応するエコー信号を受信して、受信した前記エコー信号を電気信号に変換する前記少なくとも1つの超音波トランスデューサと、
前記少なくとも1つのトランスデューサに電気的に対して接続されて前記カテーテルの近位端に対して電気的に通信状態にある少なくとも1つのトランスデューサ導体と、
前記カテーテルの前記近位部に連結可能な請求項1の前記アダプタと、
からなる、血管内超音波撮像システム用カテーテルアセンブリ。
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US62/564,878 | 2017-09-28 | ||
PCT/US2018/052685 WO2019067457A1 (en) | 2017-09-28 | 2018-09-25 | SYSTEMS AND METHODS FOR REALIZING FREQUENCY-BASED SETTING OF SIGNAL PATHWAYS ALONG ULTRASONIC INTRAVASCULAR IMAGING SYSTEMS |
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US20190090844A1 (en) | 2019-03-28 |
CN111065340A (zh) | 2020-04-24 |
EP3638125A1 (en) | 2020-04-22 |
US11504089B2 (en) | 2022-11-22 |
EP3638125B1 (en) | 2022-11-16 |
JP6850939B2 (ja) | 2021-03-31 |
WO2019067457A1 (en) | 2019-04-04 |
CN111065340B (zh) | 2022-09-20 |
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