NZ717439A - Discrimination of cheyne-stokes breathing patterns by use of oximetry signals - Google Patents

Discrimination of cheyne-stokes breathing patterns by use of oximetry signals

Info

Publication number
NZ717439A
NZ717439A NZ717439A NZ71743910A NZ717439A NZ 717439 A NZ717439 A NZ 717439A NZ 717439 A NZ717439 A NZ 717439A NZ 71743910 A NZ71743910 A NZ 71743910A NZ 717439 A NZ717439 A NZ 717439A
Authority
NZ
New Zealand
Prior art keywords
cheyne
discrimination
oximetry
stokes respiration
epochs
Prior art date
Application number
NZ717439A
Other languages
English (en)
Inventor
Chun Yui Lau
Jeffrey Peter Armitstead
Original Assignee
Resmed Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Resmed Ltd filed Critical Resmed Ltd
Publication of NZ717439A publication Critical patent/NZ717439A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Measuring devices for evaluating the respiratory organs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Measuring devices for evaluating the respiratory organs
    • A61B5/087—Measuring breath flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/14542—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue for measuring blood gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4806—Sleep evaluation
    • A61B5/4818—Sleep apnoea
    • 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
    • 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
    • A61B5/7264—Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
    • G16H50/70—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for mining of medical data, e.g. analysing previous cases of other patients
    • 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
    • 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
    • A61B5/7253—Details of waveform analysis characterised by using transforms
    • A61B5/7257—Details of waveform analysis characterised by using transforms using Fourier transforms
    • 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
    • A61B5/7253—Details of waveform analysis characterised by using transforms
    • A61B5/726—Details of waveform analysis characterised by using transforms using Wavelet transforms

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physiology (AREA)
  • Artificial Intelligence (AREA)
  • Data Mining & Analysis (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Psychiatry (AREA)
  • Pulmonology (AREA)
  • Evolutionary Computation (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Databases & Information Systems (AREA)
  • Epidemiology (AREA)
  • Primary Health Care (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
NZ717439A 2009-04-20 2010-04-15 Discrimination of cheyne-stokes breathing patterns by use of oximetry signals NZ717439A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17073409P 2009-04-20 2009-04-20
NZ700304A NZ700304A (en) 2009-04-20 2010-04-15 Discrimination of cheyne-stokes breathing patterns by use of oximetry signals

Publications (1)

Publication Number Publication Date
NZ717439A true NZ717439A (en) 2017-09-29

Family

ID=43010576

Family Applications (4)

Application Number Title Priority Date Filing Date
NZ717439A NZ717439A (en) 2009-04-20 2010-04-15 Discrimination of cheyne-stokes breathing patterns by use of oximetry signals
NZ594879A NZ594879A (en) 2009-04-20 2010-04-15 Discrimination of cheyne -stokes breathing patterns by use of oximetry signals
NZ700304A NZ700304A (en) 2009-04-20 2010-04-15 Discrimination of cheyne-stokes breathing patterns by use of oximetry signals
NZ614025A NZ614025A (en) 2009-04-20 2010-04-15 Discrimination of cheyne-stokes breathing patterns by use of oximetry signals

Family Applications After (3)

Application Number Title Priority Date Filing Date
NZ594879A NZ594879A (en) 2009-04-20 2010-04-15 Discrimination of cheyne -stokes breathing patterns by use of oximetry signals
NZ700304A NZ700304A (en) 2009-04-20 2010-04-15 Discrimination of cheyne-stokes breathing patterns by use of oximetry signals
NZ614025A NZ614025A (en) 2009-04-20 2010-04-15 Discrimination of cheyne-stokes breathing patterns by use of oximetry signals

Country Status (7)

Country Link
US (1) US20120016218A1 (enExample)
EP (1) EP2421435A4 (enExample)
JP (2) JP5711213B2 (enExample)
CN (2) CN104757975B (enExample)
AU (1) AU2010239127B2 (enExample)
NZ (4) NZ717439A (enExample)
WO (1) WO2010121290A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110742621A (zh) * 2019-10-31 2020-02-04 京东方科技集团股份有限公司 一种信号处理方法及计算机设备

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5533726B2 (ja) * 2011-02-18 2014-06-25 コニカミノルタ株式会社 睡眠時無呼吸判定装置
JP6199312B2 (ja) 2012-01-27 2017-09-20 レスメド・リミテッドＲｅｓＭｅｄ Ｌｉｍｉｔｅｄ チェーンストークス呼吸パターンの判別
US10650920B2 (en) 2012-08-16 2020-05-12 Ginger.io, Inc. Method and system for improving care determination
US10748645B2 (en) 2012-08-16 2020-08-18 Ginger.io, Inc. Method for providing patient indications to an entity
US10740438B2 (en) 2012-08-16 2020-08-11 Ginger.io, Inc. Method and system for characterizing and/or treating poor sleep behavior
CN104584017B (zh) 2012-08-16 2019-02-15 金格输入输出有限公司 用于对行为和健康变化进行建模的方法
US10276260B2 (en) 2012-08-16 2019-04-30 Ginger.io, Inc. Method for providing therapy to an individual
US10068670B2 (en) 2012-08-16 2018-09-04 Ginger.io, Inc. Method for modeling behavior and depression state
US10741285B2 (en) 2012-08-16 2020-08-11 Ginger.io, Inc. Method and system for providing automated conversations
CN102940491B (zh) * 2012-11-20 2014-05-14 秦皇岛市康泰医学系统有限公司 具有定时开机功能的睡眠呼吸初筛仪及省电工作方法
EP3019082A4 (en) * 2013-07-09 2017-03-08 Pulmone Advanced Medical Devices, Ltd. Determining respiratory parameters
JP6765971B2 (ja) * 2014-05-26 2020-10-07 レスメッド センサー テクノロジーズ リミテッド 慢性疾患をモニタする方法及び機器
US9931483B2 (en) 2014-05-28 2018-04-03 Devilbiss Healtcare Llc Detection of periodic breathing during CPAP therapy
NZ765842A (en) * 2014-06-10 2022-02-25 ResMed Pty Ltd Method and apparatus for treatment of respiratory disorders
EP2989978B1 (de) 2014-08-28 2017-03-08 Löwenstein Medical Technology S.A. Beatmungsgerät zur detektion einer cheyene-strokes-atmung
EP3240478B1 (en) * 2014-12-31 2022-04-06 Koninklijke Philips N.V. System for performing histogram analysis of the time-based capnography signals and method of operation thereof
US10159421B2 (en) 2015-03-30 2018-12-25 Resmed Sensor Technologies Limited Detection of periodic breathing
HK1247140A1 (zh) * 2015-04-22 2018-09-21 奇斯药制品公司 用於药物有效地呼吸同步递送到肺部的方法和系统
JP2018524080A (ja) * 2015-06-25 2018-08-30 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 被検者の生理学的状態を監視する装置及び方法
CN106725486B (zh) * 2016-08-30 2017-11-14 南京理工大学 基于呼吸模式监测雷达的呼吸模式判决方法
US20190053754A1 (en) * 2017-08-18 2019-02-21 Fitbit, Inc. Automated detection of breathing disturbances
WO2019060298A1 (en) 2017-09-19 2019-03-28 Neuroenhancement Lab, LLC METHOD AND APPARATUS FOR NEURO-ACTIVATION
US11717686B2 (en) 2017-12-04 2023-08-08 Neuroenhancement Lab, LLC Method and apparatus for neuroenhancement to facilitate learning and performance
US12280219B2 (en) 2017-12-31 2025-04-22 NeuroLight, Inc. Method and apparatus for neuroenhancement to enhance emotional response
US11318277B2 (en) 2017-12-31 2022-05-03 Neuroenhancement Lab, LLC Method and apparatus for neuroenhancement to enhance emotional response
US11364361B2 (en) 2018-04-20 2022-06-21 Neuroenhancement Lab, LLC System and method for inducing sleep by transplanting mental states
WO2020033613A1 (en) * 2018-08-09 2020-02-13 Covidien Lp Video-based patient monitoring systems and associated methods for detecting and monitoring breathing
CN113382683A (zh) 2018-09-14 2021-09-10 纽罗因恒思蒙特实验有限责任公司 改善睡眠的系统和方法
CN111466906B (zh) * 2019-01-24 2023-06-27 河北宁博科技有限公司 穿戴式睡眠监测仪及监测方法
US11786694B2 (en) 2019-05-24 2023-10-17 NeuroLight, Inc. Device, method, and app for facilitating sleep
EP4445935B1 (en) 2019-09-10 2026-05-13 Fisher & Paykel Healthcare Limited Systems for controlling oxygen delivery in a flow therapy apparatus
EP4030994A4 (en) * 2019-09-21 2023-10-11 Mycardio LLC SYSTEMS AND METHODS FOR DESIGNATING RAPID EYE MOVEMENT (REM) AND WAKE-UP STATES
CN111227793B (zh) * 2020-01-10 2022-11-01 京东方科技集团股份有限公司 呼吸暂停的识别方法、系统、电子设备及存储介质
CN111275093B (zh) * 2020-01-17 2024-01-26 上海乐普云智科技股份有限公司 一种用于多标签标注心电信号的心搏分类方法和装置
US11605282B2 (en) * 2020-04-02 2023-03-14 Covidien Lp System and method of predicting oxygen level desaturation
CN111685735B (zh) * 2020-06-08 2022-01-21 清华大学 基于鼾声信号的睡眠呼吸暂停监测方法及装置
CN112741627A (zh) * 2021-01-29 2021-05-04 南开大学 一种基于多重滤波的手腕血氧饱和度监测方法
US11710576B2 (en) 2021-05-24 2023-07-25 OrangeDot, Inc. Method and system for computer-aided escalation in a digital health platform
CN114847943A (zh) * 2022-04-22 2022-08-05 深圳市爱都科技有限公司 血氧数据处理方法、相关装置及介质

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5078136A (en) * 1988-03-30 1992-01-07 Nellcor Incorporated Method and apparatus for calculating arterial oxygen saturation based plethysmographs including transients
JPH0638965A (ja) * 1992-07-23 1994-02-15 Minolta Camera Co Ltd 呼吸診断装置
WO1994004071A1 (en) * 1992-08-19 1994-03-03 Lynn Lawrence A Apparatus for the diagnosis of sleep apnea
US20050062609A9 (en) 1992-08-19 2005-03-24 Lynn Lawrence A. Pulse oximetry relational alarm system for early recognition of instability and catastrophic occurrences
US7081095B2 (en) 2001-05-17 2006-07-25 Lynn Lawrence A Centralized hospital monitoring system for automatically detecting upper airway instability and for preventing and aborting adverse drug reactions
US6223064B1 (en) * 1992-08-19 2001-04-24 Lawrence A. Lynn Microprocessor system for the simplified diagnosis of sleep apnea
US5745601A (en) * 1995-07-31 1998-04-28 Neopath, Inc. Robustness of classification measurement apparatus and method
US6684090B2 (en) * 1999-01-07 2004-01-27 Masimo Corporation Pulse oximetry data confidence indicator
US6839581B1 (en) * 2000-04-10 2005-01-04 The Research Foundation Of State University Of New York Method for detecting Cheyne-Stokes respiration in patients with congestive heart failure
JP4642279B2 (ja) * 2001-06-28 2011-03-02 株式会社日立メディコ 生体光計測装置
CA2475234A1 (en) * 2002-02-05 2003-08-14 The Regents Of The University Of California Flow-independent parameter estimation based on tidal breathing exhalation profiles
US7160252B2 (en) * 2003-01-10 2007-01-09 Medtronic, Inc. Method and apparatus for detecting respiratory disturbances
IL155955A0 (en) * 2003-05-15 2003-12-23 Widemed Ltd Adaptive prediction of changes of physiological/pathological states using processing of biomedical signal
US20050055276A1 (en) * 2003-06-26 2005-03-10 Kiani Massi E. Sensor incentive method
US7309314B2 (en) 2003-09-23 2007-12-18 U.S. Department Of Veterans Affairs Method for predicting apnea-hypopnea index from overnight pulse oximetry readings
WO2006082589A2 (en) * 2005-02-07 2006-08-10 Widemed Ltd. Detection and monitoring of stress events during sleep
US7578793B2 (en) * 2004-11-22 2009-08-25 Widemed Ltd. Sleep staging based on cardio-respiratory signals
WO2006066337A1 (en) * 2004-12-23 2006-06-29 Resmed Limited Method for detecting and disciminatng breathing patterns from respiratory signals
US20060241708A1 (en) * 2005-04-22 2006-10-26 Willem Boute Multiple sensors for sleep apnea with probability indication for sleep diagnosis and means for automatic activation of alert or therapy
JP2007044331A (ja) * 2005-08-11 2007-02-22 Chikuma Seiki:Kk 無呼吸検査装置
US7630748B2 (en) * 2006-10-25 2009-12-08 Abbott Diabetes Care Inc. Method and system for providing analyte monitoring
EP2004037B1 (de) * 2006-04-07 2018-09-12 Löwenstein Medical Technology S.A. Vorrichtung zur bestimmung eines vergleichswertes von biodaten sowie zur ermittlung von biodaten
EP2008679A1 (en) * 2007-06-28 2008-12-31 General Electric Company Patient breathing system
JP2009082660A (ja) * 2007-09-28 2009-04-23 Yoji Ishiyama 睡眠時無呼吸症候群検査装置
US8750953B2 (en) * 2008-02-19 2014-06-10 Covidien Lp Methods and systems for alerting practitioners to physiological conditions
EP2265176A4 (en) * 2008-03-27 2014-01-29 Widemed Ltd DIAGNOSIS OF PERIODIC BREATHING
US20090281435A1 (en) * 2008-05-07 2009-11-12 Motorola, Inc. Method and apparatus for robust heart rate sensing
US8986208B2 (en) * 2008-09-30 2015-03-24 Abbott Diabetes Care Inc. Analyte sensor sensitivity attenuation mitigation
JP5196323B2 (ja) * 2009-02-23 2013-05-15 日本光電工業株式会社 血中酸素飽和度測定装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110742621A (zh) * 2019-10-31 2020-02-04 京东方科技集团股份有限公司 一种信号处理方法及计算机设备

Also Published As

Publication number Publication date
JP2012523935A (ja) 2012-10-11
CN102458245B (zh) 2015-05-27
AU2010239127A1 (en) 2011-09-15
NZ594879A (en) 2013-08-30
CN102458245A (zh) 2012-05-16
WO2010121290A1 (en) 2010-10-28
CN104757975A (zh) 2015-07-08
NZ614025A (en) 2014-10-31
AU2010239127B2 (en) 2013-06-20
NZ700304A (en) 2016-03-31
JP6199330B2 (ja) 2017-09-20
JP5711213B2 (ja) 2015-04-30
JP2015134192A (ja) 2015-07-27
US20120016218A1 (en) 2012-01-19
CN104757975B (zh) 2017-12-05
EP2421435A1 (en) 2012-02-29
EP2421435A4 (en) 2016-10-19

Similar Documents

Publication Publication Date Title
NZ700304A (en) Discrimination of cheyne-stokes breathing patterns by use of oximetry signals
JP5153770B2 (ja) いびき検知及び確認のためのシステム及び方法
CN113677260B (zh) 包括感测单元和数据处理设备的用于识别睡眠障碍的系统
CN103841888B (zh) 使用呼吸模式识别的呼吸暂停和呼吸不足检测
CN103687540B (zh) 使用记录的呼吸音振幅谱图和音高升降曲线诊断osa/csa
NZ717175A (en) Discrimination of cheyne stokes breathing patterns
JP2016537115A5 (enExample)
US10506969B2 (en) Acoustic upper airway assessment system and method, and sleep apnea assessment system and method relying thereon
WO2009158295A8 (en) Body-based monitoring of brain electrical activity
WO2010030780A3 (en) System and method for detecting ventilatory instability
CN108289639A (zh) 生物计量信息监测系统
CN110638419A (zh) 用于识别咀嚼的食物和/或饮用的饮料的方法和设备
EP2608717A2 (en) Apparatus and method for diagnosing obstructive sleep apnea
EP2693940A4 (en) PREDICTING A RESPIRATORY SIGNAL AND DETERMINING IRREPARABLE BREATHING BY USING A SIGNAL PHASE HISTOGRAM
EP4424238A3 (en) Systems and methods for screening, diagnosis, and monitoring of sleep-disordered breathing
CN107411726A (zh) 基于hrv心率变异训练的生物反馈控制方法和系统
US11291406B2 (en) System for determining a set of at least one cardio-respiratory descriptor of an individual during sleep
CN105286840A (zh) 生物体信息处理系统及生物体信息处理系统的控制方法
CN103432665A (zh) 一种自动选择通气模式的无创呼吸机
CN108742518A (zh) 一种基于智能枕头的打鼾检测及干预方法及系统
CN118072948A (zh) 一种慢阻肺风险评估方法、装置、电子设备及存储介质
Ozdemir et al. A time-series approach to predict obstructive sleep apnea (OSA) Episodes
US20180206762A1 (en) Sleep apnea therapy enhancement method and apparatus
EP2283773A1 (en) Processing a breathing signal
EP4285818A1 (en) Systems and methods for sleep state tracking

Legal Events

Date Code Title Description
PSEA Patent sealed
RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 6 YEARS UNTIL 15 APR 2020 BY JAMES + WELLS

Effective date: 20180222

RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 15 APR 2021 BY CPA GLOBAL

Effective date: 20200306

RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 15 APR 2022 BY ANAQUA SERVICES

Effective date: 20210323

RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 15 APR 2023 BY ANAQUA SERVICES

Effective date: 20220322

LAPS Patent lapsed