JP6466436B2 - 自動ドリフト補正を備えた、導管を評価するための装置、システム、及び方法 - Google Patents
自動ドリフト補正を備えた、導管を評価するための装置、システム、及び方法 Download PDFInfo
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/02007—Evaluating blood vessel condition, e.g. elasticity, compliance
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
- A61B5/02158—Measuring pressure in heart or blood vessels by means inserted into the body provided with two or more sensor elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/02—Operational features
- A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1076—Measuring physical dimensions, e.g. size of the entire body or parts thereof for measuring dimensions inside body cavities, e.g. using catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/7239—Details of waveform analysis using differentiation including higher order derivatives
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
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- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Physiology (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
Description
Claims (13)
- コンピュータデバイスと、第1の圧力感知デバイスと、第2の圧力感知デバイスと、ディスプレイとを含み、患者の導管を評価するシステムの作動方法であって、
前記導管の狭窄の近位位置において、前記導管内の前記第1の圧力感知デバイスが、第1の圧力測定値を取得するステップと、
前記導管内の前記第2の圧力感知デバイスが前記狭窄の遠位位置から前記狭窄の近位位置まで移動されるのに伴い、前記第2の圧力感知デバイスが、第2の圧力測定値を取得するステップと、
前記コンピュータデバイスが、前記第1の圧力測定値と、前記第2の圧力感知デバイスが前記狭窄の近位に配置された状態で取得された前記第2の圧力測定値との間のオフセットを求めるステップと、
前記コンピュータデバイスが、前記第2の圧力測定値と前記第1の圧力測定値との間の圧力比を計算するステップであり、計算された前記圧力比は、前記第2の圧力測定値と前記第1の圧力測定値との間の圧力比に、可変値を加えることによって前記オフセットが自動補正されており、前記可変値は、前記オフセット、及び、前記第1の圧力感知デバイスと前記第2の圧力感知デバイスとを互いに対しノーマライズさせた時と、前記第2の圧力測定値を取得した時との間の時間の長さに少なくとも部分的に基づいて決定されるステップと、
前記コンピュータデバイスが、計算された前記圧力比を前記ディスプレイに出力するステップと
を含む、作動方法。 - 前記可変値は線形である、請求項1に記載の作動方法。
- 前記可変値は非線形である、請求項1に記載の作動方法。
- 計算された前記圧力比は、前記第2の圧力感知デバイスが前記狭窄の前記遠位位置から前記狭窄の前記近位位置まで移動するのに応じて、前記圧力比が上昇するよう制約される、請求項1に記載の作動方法。
- 前記第1の圧力感知デバイスはカテーテルである、請求項1に記載の作動方法。
- 前記第2の圧力感知デバイスはガイドワイヤーである、請求項5に記載の作動方法。
- 第1の圧力感知デバイスと、
第2の圧力感知デバイスと、
前記第1及び第2の圧力感知デバイスと通信する処理装置であって、
導管の狭窄の近位位置において前記導管内の前記第1の圧力感知デバイスから第1の圧力測定値を取得し、
前記導管内の前記第2の圧力感知デバイスが前記狭窄の遠位位置から前記狭窄の近位位置まで移動されるのに伴い、前記第2の圧力感知デバイスから第2の圧力測定値を取得し、
前記第1の圧力測定値と、前記第2の圧力感知デバイスが前記狭窄の前記遠位位置から前記狭窄の前記近位位置まで移動された後、前記第2の圧力感知デバイスが前記狭窄の近位に配置された状態で取得された前記第2の圧力測定値との間のオフセットを求め、
前記第1の圧力測定値と、前記第2の圧力感知デバイスが前記狭窄の近位に配置された状態で取得された前記第2の圧力測定値との間の前記オフセットを自動補正する、前記第2の圧力測定値と前記第1の圧力測定値との間の圧力比を計算し、計算された前記圧力比は、前記第2の圧力測定値と前記第1の圧力測定値との間の圧力比に、可変値を加えることによって前記オフセットが自動補正されており、前記可変値は、前記オフセット、及び、前記第1及び第2の圧力感知デバイスとを互いに対しノーマライズさせた時と、前記第2の圧力測定値を取得した時との間の時間の長さに少なくとも部分的に基づいて決定され、
計算された前記圧力比をディスプレイに出力する、処理装置と
を含む、システム。 - 前記可変値は線形である、請求項7に記載のシステム。
- 前記可変値は非線形である、請求項7に記載のシステム。
- 計算された前記圧力比は、前記第2の圧力感知デバイスが前記狭窄の前記遠位位置から前記狭窄の前記近位位置まで移動するのに応じて、前記圧力比が上昇するよう制約される、請求項7に記載のシステム。
- 前記第1の圧力感知デバイスはカテーテルである、請求項7に記載のシステム。
- 前記第2の圧力感知デバイスはガイドワイヤーである、請求項11に記載のシステム。
- コンピュータデバイスと、第1及び第2の圧力感知デバイスと、ディスプレイとを含み、患者の導管を評価するシステムの作動方法であって、
前記第1及び第2の圧力感知デバイスが、導管内から圧力測定値を取得するステップと、
前記導管内から前記圧力測定値を取得するステップの後、前記コンピュータデバイスが、互いに隣接するよう配置されたときの前記第1及び第2の圧力感知デバイスの前記圧力測定値間のオフセットを求めるステップと、
前記コンピュータデバイスが、前記第1及び第2の圧力感知デバイスによって前記導管内で取得された前記圧力測定値間の圧力比を計算するステップであり、計算された前記圧力比は、前記圧力測定値間の圧力比に、可変値を加えることによって前記オフセットが自動補正されており、前記可変値は、前記オフセット、及び、前記第1及び第2の圧力感知デバイスを互いに対しノーマライズさせた時と、前記圧力測定値を取得した時との間の時間の長さに少なくとも部分的に基づいて決定されるステップと、
前記コンピュータデバイスが、計算された前記圧力比を前記ディスプレイに出力するステップと
を含む、作動方法。
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US201361856518P | 2013-07-19 | 2013-07-19 | |
US61/856,518 | 2013-07-19 | ||
PCT/US2014/047234 WO2015013134A2 (en) | 2013-07-19 | 2014-07-18 | Devices. systems. and methods for assessing a vessel with automated drift correction |
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JP2016524994A JP2016524994A (ja) | 2016-08-22 |
JP6466436B2 true JP6466436B2 (ja) | 2019-02-06 |
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US (1) | US11224349B2 (ja) |
EP (1) | EP3021741B1 (ja) |
JP (1) | JP6466436B2 (ja) |
CN (1) | CN105517487B (ja) |
WO (1) | WO2015013134A2 (ja) |
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2014
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CN105517487B (zh) | 2019-09-13 |
CN105517487A (zh) | 2016-04-20 |
WO2015013134A2 (en) | 2015-01-29 |
EP3021741B1 (en) | 2019-10-23 |
WO2015013134A8 (en) | 2015-03-26 |
EP3021741A2 (en) | 2016-05-25 |
EP3021741A4 (en) | 2017-03-15 |
US20150025398A1 (en) | 2015-01-22 |
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US11224349B2 (en) | 2022-01-18 |
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