JP7432632B2 - 医療デバイスの複数の電極間のインピーダンスを測定するためのシステム - Google Patents
医療デバイスの複数の電極間のインピーダンスを測定するためのシステム Download PDFInfo
- Publication number
- JP7432632B2 JP7432632B2 JP2022019596A JP2022019596A JP7432632B2 JP 7432632 B2 JP7432632 B2 JP 7432632B2 JP 2022019596 A JP2022019596 A JP 2022019596A JP 2022019596 A JP2022019596 A JP 2022019596A JP 7432632 B2 JP7432632 B2 JP 7432632B2
- Authority
- JP
- Japan
- Prior art keywords
- electrodes
- electrode
- drive signals
- current
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000004044 response Effects 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 45
- 238000005070 sampling Methods 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 10
- 238000005259 measurement Methods 0.000 description 24
- 230000001360 synchronised effect Effects 0.000 description 22
- 230000008569 process Effects 0.000 description 13
- 230000005284 excitation Effects 0.000 description 10
- 238000002679 ablation Methods 0.000 description 9
- 238000013507 mapping Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 238000002955 isolation Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000005684 electric field Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000003187 abdominal effect Effects 0.000 description 2
- 230000000747 cardiac effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 102100026816 DNA-dependent metalloprotease SPRTN Human genes 0.000 description 1
- 101710175461 DNA-dependent metalloprotease SPRTN Proteins 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 210000005166 vasculature Anatomy 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
- A61B5/061—Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body
- A61B5/063—Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body using impedance measurements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/6852—Catheters
- A61B5/6856—Catheters with a distal loop
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0538—Measuring electrical impedance or conductance of a portion of the body invasively, e.g. using a catheter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
- A61B5/282—Holders for multiple electrodes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/6852—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
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/0016—Energy applicators arranged in a two- or three dimensional array
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
- A61B2018/00267—Expandable means emitting energy, e.g. by elements carried thereon having a basket shaped structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00345—Vascular system
- A61B2018/00351—Heart
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00839—Bioelectrical parameters, e.g. ECG, EEG
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00845—Frequency
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00875—Resistance or impedance
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00892—Voltage
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/1206—Generators therefor
- A61B2018/128—Generators therefor generating two or more frequencies
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1435—Spiral
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61B2034/2046—Tracking techniques
- A61B2034/2051—Electromagnetic tracking systems
- A61B2034/2053—Tracking an applied voltage gradient
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0209—Special features of electrodes classified in A61B5/24, A61B5/25, A61B5/283, A61B5/291, A61B5/296, A61B5/053
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
- A61B5/065—Determining position of the probe employing exclusively positioning means located on or in the probe, e.g. using position sensors arranged on the probe
- A61B5/068—Determining position of the probe employing exclusively positioning means located on or in the probe, e.g. using position sensors arranged on the probe using impedance sensors
-
- 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
- A61B5/7221—Determining signal validity, reliability or quality
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Signal Processing (AREA)
- Cardiology (AREA)
- Radiology & Medical Imaging (AREA)
- Power Engineering (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physiology (AREA)
- Psychiatry (AREA)
- Plasma & Fusion (AREA)
- Otolaryngology (AREA)
- Robotics (AREA)
- Human Computer Interaction (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Surgical Instruments (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Description
本出願は2017年10月24日に出願された米国仮出願第62/576,447号の優先権を主張するものであり、その内容はその全体が参考として本明細書に組み込まれる。
Claims (8)
- 医療デバイスの組織への接触状態を評価するための電子制御装置(ECU)であって、
共通ベース周波数の高調波である固有変調周波数をそれぞれ有している複数のデジタル駆動信号を生成するように構成されている周波数ソースであって、前記複数のデジタル駆動信号のそれぞれには、ランダムな位相オフセットが割り当てられる、前記周波数ソースと、
前記複数のデジタル駆動信号を受信し、複数のアナログ駆動信号を出力するように構成されている少なくとも1つの第1のデジタル-アナログ変換器であって、前記複数のアナログ駆動信号は、前記医療デバイスに配置される複数の電極に同時に印加される、前記第1のデジタル-アナログ変換器と、
前記複数の電極から、前記複数のアナログ駆動信号に応答して生成された複数のアナログ電圧信号を受信し、前記複数のアナログ電圧信号の合成デジタル応答信号を生成するように構成されている少なくとも1つの第1のアナログ-デジタル変換器と、
複数の前記固有変調周波数ごとに前記合成デジタル応答信号を同期復調し、前記複数の電極のそれぞれに対するインピーダンス値を出力するように構成されている復調回路と、
を備え、
それぞれの電極の組織への接触状態は、出力済みの前記複数の電極のそれぞれの前記インピーダンス値に基づいて決定される、ECU。 - 前記周波数ソースは、前記複数のデジタル駆動信号を生成するための少なくとも1つの第1の数値制御発振器(NCO)をさらに含む、請求項1に記載のECU。
- 前記復調回路は、複数の復調信号を生成するための少なくとも1つの第2の数値制御発振器(NCO)をさらに備え、
前記第1のNCOと前記第2のNCOは、共通のフィールドプログラマブルゲートアレイ(FPGA)の要素である、請求項2に記載のECU。 - 組織への接触状態を評価するために用いられるシステムの動作方法であって、
前記システムが、共通ベース周波数の高調波である固有変調周波数をそれぞれ有する複数の駆動信号を生成することと、
前記システムが、前記複数の駆動信号のそれぞれを、医療デバイスに位置する複数の個別電極に同時に印加するように、コントローラを制御することと、
前記システムが、前記複数の個別電極のそれぞれの電圧信号を測定することと、
前記システムが、前記複数の個別電極のそれぞれで測定された前記電圧信号に基づいて、合成応答信号を生成することと、
前記システムが、前記固有変調周波数ごとに前記合成応答信号を同期復調することと、
前記システムが、前記複数の駆動信号に対応する複数の復調信号に基づいて、個別電極のそれぞれに対するインピーダンス値を決定することと、
前記システムが、決定済みの前記インピーダンス値に基づいて、個別電極毎に前記組織への接触状態を評価することと、
を備える、方法。 - 前記システムが前記合成応答信号を同期復調することは、前記共通ベース周波数に対して、整数回のサイクルを有する期間にわたって前記合成応答信号をサンプリングすることをさらに含んでいる、請求項4に記載の方法。
- 前記システムが固有変調周波数をそれぞれ有する前記複数の駆動信号を生成することは、ランダムな位相オフセットを前記複数の駆動信号のそれぞれに導入することをさらに含んでいる、請求項4に記載の方法。
- 前記システムが、医療デバイスの電極の数を識別することと、
前記システムが、前記電極の数に基づいて、前記複数の駆動信号の電流レベルを調整することと、
をさらに備えている、請求項4に記載の方法。 - 前記システムが、前記個別電極対の数の平方根に前記複数の駆動信号の電流レベルを乗じることによって算出した、前記複数の駆動信号の合計電流を所定の電流しきい値未満に維持することをさらに備えている、請求項7に記載の方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762576447P | 2017-10-24 | 2017-10-24 | |
US62/576,447 | 2017-10-24 | ||
PCT/US2018/057100 WO2019083999A1 (en) | 2017-10-24 | 2018-10-23 | SYSTEM FOR MEASURING IMPEDANCE BETWEEN A PLURALITY OF ELECTRODES OF A MEDICAL DEVICE |
JP2020522839A JP7025541B2 (ja) | 2017-10-24 | 2018-10-23 | 医療デバイスの複数の電極間のインピーダンスを測定するためのシステム |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020522839A Division JP7025541B2 (ja) | 2017-10-24 | 2018-10-23 | 医療デバイスの複数の電極間のインピーダンスを測定するためのシステム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022070954A JP2022070954A (ja) | 2022-05-13 |
JP7432632B2 true JP7432632B2 (ja) | 2024-02-16 |
Family
ID=64557111
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020522839A Active JP7025541B2 (ja) | 2017-10-24 | 2018-10-23 | 医療デバイスの複数の電極間のインピーダンスを測定するためのシステム |
JP2022019596A Active JP7432632B2 (ja) | 2017-10-24 | 2022-02-10 | 医療デバイスの複数の電極間のインピーダンスを測定するためのシステム |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020522839A Active JP7025541B2 (ja) | 2017-10-24 | 2018-10-23 | 医療デバイスの複数の電極間のインピーダンスを測定するためのシステム |
Country Status (5)
Country | Link |
---|---|
US (3) | US10750974B2 (ja) |
EP (2) | EP3668432B1 (ja) |
JP (2) | JP7025541B2 (ja) |
CN (1) | CN111246816B (ja) |
WO (1) | WO2019083999A1 (ja) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8449599B2 (en) | 2009-12-04 | 2013-05-28 | Edwards Lifesciences Corporation | Prosthetic valve for replacing mitral valve |
US9724084B2 (en) | 2013-02-26 | 2017-08-08 | Mitralign, Inc. | Devices and methods for percutaneous tricuspid valve repair |
WO2015059699A2 (en) | 2013-10-23 | 2015-04-30 | Valtech Cardio, Ltd. | Anchor magazine |
CN115721454A (zh) | 2014-12-04 | 2023-03-03 | 爱德华兹生命科学公司 | 用于修复心脏瓣膜的经皮夹具 |
EP3738551A1 (en) | 2015-05-14 | 2020-11-18 | Edwards Lifesciences Corporation | Heart valve sealing devices and delivery devices therefor |
US10799675B2 (en) | 2016-03-21 | 2020-10-13 | Edwards Lifesciences Corporation | Cam controlled multi-direction steerable handles |
US10905554B2 (en) | 2017-01-05 | 2021-02-02 | Edwards Lifesciences Corporation | Heart valve coaptation device |
US10675017B2 (en) | 2017-02-07 | 2020-06-09 | Edwards Lifesciences Corporation | Transcatheter heart valve leaflet plication |
BR112019021267A2 (pt) | 2017-04-18 | 2020-05-19 | Edwards Lifesciences Corp | dispositivos de vedação de válvula cardíaca e dispositivos de liberação dos mesmos |
US11224511B2 (en) | 2017-04-18 | 2022-01-18 | Edwards Lifesciences Corporation | Heart valve sealing devices and delivery devices therefor |
US11051940B2 (en) | 2017-09-07 | 2021-07-06 | Edwards Lifesciences Corporation | Prosthetic spacer device for heart valve |
US11110251B2 (en) | 2017-09-19 | 2021-09-07 | Edwards Lifesciences Corporation | Multi-direction steerable handles for steering catheters |
US10231837B1 (en) | 2018-01-09 | 2019-03-19 | Edwards Lifesciences Corporation | Native valve repair devices and procedures |
EP3964175A1 (en) | 2018-01-09 | 2022-03-09 | Edwards Lifesciences Corporation | Native valve repair devices and procedures |
WO2019215721A1 (en) * | 2018-05-06 | 2019-11-14 | Navix International Limited | Measuring electrical impedance, contact force, and tissue properties |
US10945844B2 (en) | 2018-10-10 | 2021-03-16 | Edwards Lifesciences Corporation | Heart valve sealing devices and delivery devices therefor |
KR20210125544A (ko) | 2019-02-14 | 2021-10-18 | 에드워즈 라이프사이언시스 코포레이션 | 심장 판막 밀봉 디바이스 및 이를 위한 전달 디바이스 |
US20200383599A1 (en) * | 2019-06-07 | 2020-12-10 | Lake Region Manufacturing, Inc. | Basket-type ep catheter with electrode polling for sequential electrode sampling |
CN113993476A (zh) * | 2019-07-18 | 2022-01-28 | 圣犹达医疗用品心脏病学部门有限公司 | 用于耐噪声心脏定位、导航和标测的系统和方法 |
WO2021236341A1 (en) | 2020-05-20 | 2021-11-25 | St. Jude Medical, Cardiology Division, Inc. | Systems and methods for monitoring return patch impedances |
US20220233230A1 (en) * | 2021-01-27 | 2022-07-28 | NovaScan, Inc. | Impedance-calibrated diagnostic medical devices |
CN113995501A (zh) | 2021-05-25 | 2022-02-01 | 圣犹达医疗用品心脏病学部门有限公司 | 用于配设有网篮和球囊的电穿孔设备的系统和方法 |
WO2022266043A1 (en) | 2021-06-14 | 2022-12-22 | St. Jude Medical, Cardiology Division, Inc. | Systems and methods for isolating wires in electroporation devices |
US20230052114A1 (en) | 2021-08-12 | 2023-02-16 | St. Jude Medical, Cardiology Division, Inc. | Systems and methods for electroporation using asymmetric waveforms and waveforms with reduced burst duration |
CN114305380A (zh) * | 2021-12-02 | 2022-04-12 | 四川锦江电子科技有限公司 | 阻抗网络检测装置与方法 |
US20230240745A1 (en) | 2022-01-28 | 2023-08-03 | St. Jude Medical, Cardiology Division, Inc. | Systems and methods for electroporation using waveforms that reduce electrical stimulation |
WO2023205577A1 (en) | 2022-04-19 | 2023-10-26 | St. Jude Medical, Cardiology Division, Inc. | Systems for electroporation using arbitrary electrode addressing |
WO2024086033A1 (en) | 2022-10-17 | 2024-04-25 | St. Jude Medical, Cardiology Division, Inc. | Systems and methods for monitoring pulsed field ablation generator output |
US11969261B1 (en) | 2023-01-12 | 2024-04-30 | St. Jude Medical, Cardiology Division, Inc. | Method and system for modifying contact status of an electrode |
US11931095B1 (en) | 2023-01-12 | 2024-03-19 | St. Jude Medical, Cardiology Division, Inc. | Method and system for determining baseline electrode impedance for tissue contact detection |
US11950833B1 (en) | 2023-01-12 | 2024-04-09 | St. Jude Medical, Cardiology Division, Inc. | Method and system for detecting contact status using electrode |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006501903A (ja) | 2002-10-09 | 2006-01-19 | クイーンスランド ユニバーシティー オブ テクノロジー | 高分解能生体インピーダンス装置 |
WO2016081786A1 (en) | 2014-11-19 | 2016-05-26 | Stereotaxis, Inc. | Inter-electrode impedance for detecting tissue distance, orientation, contact and contact quality |
JP2016524480A (ja) | 2013-06-11 | 2016-08-18 | セント・ジュード・メディカル・エイトリアル・フィブリレーション・ディヴィジョン・インコーポレーテッド | マルチ電極インピーダンス・センシング |
WO2016153561A1 (en) | 2015-03-25 | 2016-09-29 | Advanced Cardiac Therapeutics, Inc. | Contact sensing systems and methods |
JP2016187720A (ja) | 2010-11-08 | 2016-11-04 | バイオセンス・ウエブスター・(イスラエル)・リミテッドBiosense Webster (Israel), Ltd. | 複数電極による同時アブレーション |
Family Cites Families (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4587975A (en) | 1984-07-02 | 1986-05-13 | Cardiac Pacemakers, Inc. | Dimension sensitive angioplasty catheter |
US5341807A (en) | 1992-06-30 | 1994-08-30 | American Cardiac Ablation Co., Inc. | Ablation catheter positioning system |
SE9300825D0 (sv) | 1993-03-12 | 1993-03-12 | Siemens Elema Ab | Anordning foer maetning av elektrisk aktivitet i hjaertat |
US5836990A (en) | 1997-09-19 | 1998-11-17 | Medtronic, Inc. | Method and apparatus for determining electrode/tissue contact |
US6129669A (en) | 1998-05-22 | 2000-10-10 | Scimed Life Systems, Inc. | Systems and methods for assessing stability of an ablation electrode in contact with heart tissue |
US7263397B2 (en) | 1998-06-30 | 2007-08-28 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Method and apparatus for catheter navigation and location and mapping in the heart |
US6391024B1 (en) | 1999-06-17 | 2002-05-21 | Cardiac Pacemakers, Inc. | RF ablation apparatus and method having electrode/tissue contact assessment scheme and electrocardiogram filtering |
US6471693B1 (en) * | 1999-09-10 | 2002-10-29 | Cryocath Technologies Inc. | Catheter and system for monitoring tissue contact |
US6569160B1 (en) | 2000-07-07 | 2003-05-27 | Biosense, Inc. | System and method for detecting electrode-tissue contact |
US6546270B1 (en) | 2000-07-07 | 2003-04-08 | Biosense, Inc. | Multi-electrode catheter, system and method |
US8905937B2 (en) | 2009-02-26 | 2014-12-09 | Integrated Vascular Systems, Inc. | Methods and apparatus for locating a surface of a body lumen |
NZ579430A (en) | 2003-02-21 | 2011-03-31 | Electro Cat Llc | System and method for measuring cross-sectional areas and pressure gradients in luminal organs |
DE602005004282T2 (de) * | 2005-08-17 | 2008-11-27 | Osypka Medical Gmbh | Digitale Demodulationsvorrichtung und -verfahren zur Messung der elektrischen Bioimpedanz oder Bioadmittanz |
US7885707B2 (en) | 2005-09-15 | 2011-02-08 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Method of scaling navigation signals to account for impedance drift in tissue |
US8672936B2 (en) | 2005-10-13 | 2014-03-18 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Systems and methods for assessing tissue contact |
CA2626833C (en) | 2005-10-27 | 2016-06-07 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Systems and methods for electrode contact assessment |
US8696656B2 (en) | 2005-11-18 | 2014-04-15 | Medtronic Cryocath Lp | System and method for monitoring bioimpedance and respiration |
US8369922B2 (en) | 2005-12-06 | 2013-02-05 | St. Jude Medical Atrial Fibrillation Division, Inc. | Method for displaying catheter electrode-tissue contact in electro-anatomic mapping and navigation system |
US8403925B2 (en) | 2006-12-06 | 2013-03-26 | St. Jude Medical, Atrial Fibrillation Division, Inc. | System and method for assessing lesions in tissue |
US8406866B2 (en) | 2005-12-06 | 2013-03-26 | St. Jude Medical, Atrial Fibrillation Division, Inc. | System and method for assessing coupling between an electrode and tissue |
US9788750B2 (en) * | 2007-04-30 | 2017-10-17 | Medtronic, Inc. | Seizure prediction |
US8160690B2 (en) | 2007-06-14 | 2012-04-17 | Hansen Medical, Inc. | System and method for determining electrode-tissue contact based on amplitude modulation of sensed signal |
US8211102B2 (en) | 2007-12-21 | 2012-07-03 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Contact sensing flexible conductive polymer electrode |
US20100010612A1 (en) | 2008-07-09 | 2010-01-14 | Daniel Gelbart | Lumen diameter and stent apposition sensing |
WO2010020958A1 (en) | 2008-08-22 | 2010-02-25 | Koninklijke Philips Electronics N.V. | Sensing apparatus for sensing an object |
US8700129B2 (en) | 2008-12-31 | 2014-04-15 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Devices and methods for catheter localization |
US8556850B2 (en) | 2008-12-31 | 2013-10-15 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Shaft and handle for a catheter with independently-deflectable segments |
US9585593B2 (en) * | 2009-11-18 | 2017-03-07 | Chung Shing Fan | Signal distribution for patient-electrode measurements |
KR20130108067A (ko) * | 2010-04-09 | 2013-10-02 | 베식스 바스큘라 인코포레이티드 | 조직 치료를 위한 발전 및 제어 장치 |
CA2802345A1 (en) | 2010-06-13 | 2011-12-22 | Angiometrix Corporation | Methods and systems for determining vascular bodily lumen information and guiding medical devices |
EP2433564A1 (de) | 2010-09-23 | 2012-03-28 | BIOTRONIK SE & Co. KG | Positionierung von Kathetern mittels Impedanzmessung |
US9005193B2 (en) * | 2010-11-08 | 2015-04-14 | Biosense Webster (Israel) Ltd. | Multichannel ablation with frequency differentiation |
US9113807B2 (en) | 2010-12-29 | 2015-08-25 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Dynamic adaptive respiration compensation with automatic gain control |
US9687289B2 (en) | 2012-01-04 | 2017-06-27 | Biosense Webster (Israel) Ltd. | Contact assessment based on phase measurement |
EP2840996B1 (en) | 2012-04-26 | 2019-03-20 | Medtronic Ablation Frontiers LLC | System for detecting tissue contact during ablation |
US20130296840A1 (en) | 2012-05-01 | 2013-11-07 | Medtronic Ablation Frontiers Llc | Systems and methods for detecting tissue contact during ablation |
US9861746B2 (en) * | 2012-06-08 | 2018-01-09 | Medtronic Minimed, Inc. | Application of electrochemical impedance spectroscopy in sensor systems, devices, and related methods |
US9498275B2 (en) * | 2013-03-14 | 2016-11-22 | Covidien Lp | Systems and methods for arc detection and drag adjustment |
US20150157240A1 (en) * | 2013-12-06 | 2015-06-11 | General Electric Company | Electrical impedance imaging systems |
CN105828870B (zh) * | 2013-12-19 | 2018-02-23 | 心脏起搏器股份公司 | 用于测量组织的电气特性以识别用于治疗的神经目标的系统 |
US9901385B2 (en) * | 2014-01-13 | 2018-02-27 | Covidien Lp | Systems and methods for multifrequency cable compensation |
DE102014206311B3 (de) * | 2014-04-02 | 2015-10-08 | Siemens Aktiengesellschaft | Empfangssystem für Lokalspulen eines Magnetresonanztomographiesystems |
SG11201703943VA (en) * | 2014-11-19 | 2017-06-29 | Advanced Cardiac Therapeutics Inc | Ablation devices, systems and methods of using a high-resolution electrode assembly |
WO2016109207A1 (en) * | 2014-12-31 | 2016-07-07 | St. Jude Medical, Cardiology Division, Inc. | Filter circuit for electrophysiology system |
EP3258832A1 (en) | 2015-02-20 | 2017-12-27 | Boston Scientific Scimed Inc. | Tissue contact sensing using a medical device |
US10182742B2 (en) | 2015-04-02 | 2019-01-22 | Medtronic Ablation Frontiers Llc | Tissue contact sensing with a multi electrode ablation catheter |
EP3297720B1 (en) * | 2015-05-21 | 2022-11-02 | EBT Medical, Inc. | Systems for treatment of urinary dysfunction |
US20170007157A1 (en) * | 2015-07-08 | 2017-01-12 | Rainbow Medical Ltd. | Electrical-signal-based electrode-tissue contact detection |
US10384062B2 (en) * | 2016-11-03 | 2019-08-20 | Calmare Therapeutics Incorporated | Pain management system, method and device using analytics driven random electrical stimuli |
-
2018
- 2018-10-23 EP EP18811388.0A patent/EP3668432B1/en active Active
- 2018-10-23 EP EP21173084.1A patent/EP3881788B1/en active Active
- 2018-10-23 JP JP2020522839A patent/JP7025541B2/ja active Active
- 2018-10-23 CN CN201880067880.0A patent/CN111246816B/zh active Active
- 2018-10-23 WO PCT/US2018/057100 patent/WO2019083999A1/en unknown
- 2018-10-23 US US16/168,423 patent/US10750974B2/en active Active
-
2020
- 2020-07-16 US US16/930,905 patent/US11439319B2/en active Active
-
2022
- 2022-02-10 JP JP2022019596A patent/JP7432632B2/ja active Active
- 2022-08-10 US US17/884,758 patent/US20230077196A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006501903A (ja) | 2002-10-09 | 2006-01-19 | クイーンスランド ユニバーシティー オブ テクノロジー | 高分解能生体インピーダンス装置 |
JP2016187720A (ja) | 2010-11-08 | 2016-11-04 | バイオセンス・ウエブスター・(イスラエル)・リミテッドBiosense Webster (Israel), Ltd. | 複数電極による同時アブレーション |
JP2016524480A (ja) | 2013-06-11 | 2016-08-18 | セント・ジュード・メディカル・エイトリアル・フィブリレーション・ディヴィジョン・インコーポレーテッド | マルチ電極インピーダンス・センシング |
WO2016081786A1 (en) | 2014-11-19 | 2016-05-26 | Stereotaxis, Inc. | Inter-electrode impedance for detecting tissue distance, orientation, contact and contact quality |
WO2016153561A1 (en) | 2015-03-25 | 2016-09-29 | Advanced Cardiac Therapeutics, Inc. | Contact sensing systems and methods |
Also Published As
Publication number | Publication date |
---|---|
US11439319B2 (en) | 2022-09-13 |
JP7025541B2 (ja) | 2022-02-24 |
US20190117113A1 (en) | 2019-04-25 |
US20230077196A1 (en) | 2023-03-09 |
EP3881788B1 (en) | 2022-11-16 |
JP2022070954A (ja) | 2022-05-13 |
EP3668432A1 (en) | 2020-06-24 |
CN111246816B (zh) | 2023-07-14 |
US10750974B2 (en) | 2020-08-25 |
EP3668432B1 (en) | 2021-06-16 |
JP2021500153A (ja) | 2021-01-07 |
EP3881788A1 (en) | 2021-09-22 |
US20200345264A1 (en) | 2020-11-05 |
WO2019083999A1 (en) | 2019-05-02 |
CN111246816A (zh) | 2020-06-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7432632B2 (ja) | 医療デバイスの複数の電極間のインピーダンスを測定するためのシステム | |
JP7106644B2 (ja) | 複素インピーダンス測定を用いて、電極と組織との間の接触を評価する方法 | |
US11642060B2 (en) | Multi-electrode impedance sensing | |
EP3610788B1 (en) | Estimation of electrode-tissue contact using oscillator at common ground of electrocardiogram (ecg) system | |
CN105025789A (zh) | 用于检测定位元件的包覆和非包覆的系统和方法 | |
US20220296309A1 (en) | System and method for noise tolerant cardiac localization, navigation and mapping | |
RU2422084C2 (ru) | Устройство слежения за электродами внутри тела пациента и способ его реализации | |
JP2022069429A (ja) | 体内の場所検知のためのコーティングされた電極 | |
JP2020081889A (ja) | 体内プローブを追跡している間のアーチファクトの補正 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220310 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220310 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230110 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20230407 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230612 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20231003 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20231222 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20240109 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20240205 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7432632 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |