JP2010517471A - インピーダンス測定のためのチョッパ安定型計装用増幅器 - Google Patents
インピーダンス測定のためのチョッパ安定型計装用増幅器 Download PDFInfo
- Publication number
- JP2010517471A JP2010517471A JP2009548231A JP2009548231A JP2010517471A JP 2010517471 A JP2010517471 A JP 2010517471A JP 2009548231 A JP2009548231 A JP 2009548231A JP 2009548231 A JP2009548231 A JP 2009548231A JP 2010517471 A JP2010517471 A JP 2010517471A
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- signal
- feedback path
- input
- mixer amplifier
- 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.)
- Pending
Links
- 238000002847 impedance measurement Methods 0.000 title description 12
- 239000003990 capacitor Substances 0.000 claims description 204
- 230000000638 stimulation Effects 0.000 claims description 81
- 238000000034 method Methods 0.000 claims description 35
- 230000000747 cardiac effect Effects 0.000 claims description 18
- 230000004044 response Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000012377 drug delivery Methods 0.000 claims description 7
- 230000003321 amplification Effects 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 210000005036 nerve Anatomy 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 53
- 230000006641 stabilisation Effects 0.000 abstract description 9
- 238000011105 stabilization Methods 0.000 abstract description 9
- 210000001519 tissue Anatomy 0.000 description 41
- 238000010586 diagram Methods 0.000 description 40
- 230000001360 synchronised effect Effects 0.000 description 21
- 230000006870 function Effects 0.000 description 16
- 238000002560 therapeutic procedure Methods 0.000 description 15
- 238000011282 treatment Methods 0.000 description 14
- 230000005540 biological transmission Effects 0.000 description 13
- 239000012530 fluid Substances 0.000 description 11
- 230000010363 phase shift Effects 0.000 description 11
- 238000004891 communication Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 9
- 239000003814 drug Substances 0.000 description 9
- 229940079593 drug Drugs 0.000 description 9
- 238000012544 monitoring process Methods 0.000 description 9
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 8
- 241000482268 Zea mays subsp. mays Species 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- 239000000284 extract Substances 0.000 description 8
- 210000004556 brain Anatomy 0.000 description 7
- 230000008859 change Effects 0.000 description 7
- 230000000875 corresponding effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 230000001965 increasing effect Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000012546 transfer Methods 0.000 description 7
- 238000009423 ventilation Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- 230000002496 gastric effect Effects 0.000 description 6
- 210000003205 muscle Anatomy 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 206010030113 Oedema Diseases 0.000 description 4
- 206010037423 Pulmonary oedema Diseases 0.000 description 4
- 230000000876 cardiodynamic effect Effects 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 4
- 208000005333 pulmonary edema Diseases 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 210000000278 spinal cord Anatomy 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000035559 beat frequency Effects 0.000 description 3
- 230000006399 behavior Effects 0.000 description 3
- 230000007850 degeneration Effects 0.000 description 3
- 238000002651 drug therapy Methods 0.000 description 3
- 244000144992 flock Species 0.000 description 3
- 210000000578 peripheral nerve Anatomy 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 208000030090 Acute Disease Diseases 0.000 description 2
- 208000017667 Chronic Disease Diseases 0.000 description 2
- 208000008589 Obesity Diseases 0.000 description 2
- 208000002193 Pain Diseases 0.000 description 2
- 201000001880 Sexual dysfunction Diseases 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 210000005013 brain tissue Anatomy 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001684 chronic effect Effects 0.000 description 2
- 230000001010 compromised effect Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002939 deleterious effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000000763 evoking effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000007383 nerve stimulation Effects 0.000 description 2
- 235000020824 obesity Nutrition 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 231100000872 sexual dysfunction Toxicity 0.000 description 2
- 201000002859 sleep apnea Diseases 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 239000013598 vector Substances 0.000 description 2
- 206010003694 Atrophy Diseases 0.000 description 1
- 208000000094 Chronic Pain Diseases 0.000 description 1
- 206010010904 Convulsion Diseases 0.000 description 1
- 208000034347 Faecal incontinence Diseases 0.000 description 1
- 206010021639 Incontinence Diseases 0.000 description 1
- 208000012902 Nervous system disease Diseases 0.000 description 1
- 208000025966 Neurological disease Diseases 0.000 description 1
- 208000032366 Oversensing Diseases 0.000 description 1
- 208000018737 Parkinson disease Diseases 0.000 description 1
- 208000000450 Pelvic Pain Diseases 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 206010046543 Urinary incontinence Diseases 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 210000000577 adipose tissue Anatomy 0.000 description 1
- 206010003119 arrhythmia Diseases 0.000 description 1
- 230000037444 atrophy Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007177 brain activity Effects 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 206010015037 epilepsy Diseases 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 210000005003 heart tissue Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010339 medical test Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 208000031225 myocardial ischemia Diseases 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 230000000926 neurological effect Effects 0.000 description 1
- 210000003903 pelvic floor Anatomy 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000004962 physiological condition Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 230000036544 posture Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/38—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers
- H03F3/387—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with semiconductor devices only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/38—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
-
- 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
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/30—Input circuits therefor
-
- 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
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
-
- 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
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
- A61B5/7217—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise originating from a therapeutic or surgical apparatus, e.g. from a pacemaker
-
- 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
- A61B5/7228—Signal modulation applied to the input signal sent to patient or subject; demodulation to recover the physiological signal
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/362—Heart stimulators
- A61N1/37—Monitoring; Protecting
- A61N1/3702—Physiological parameters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
- H03F3/45183—Long tailed pairs
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
- H03F3/45183—Long tailed pairs
- H03F3/45192—Folded cascode stages
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
- H03F3/45632—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit
- H03F3/45744—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit by offset reduction
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
- H03F3/45928—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit
- H03F3/45968—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit by offset reduction
-
- 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
- A61B2560/0204—Operational features of power management
- A61B2560/0209—Operational features of power management adapted for power saving
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/362—Heart stimulators
- A61N1/365—Heart stimulators controlled by a physiological parameter, e.g. heart potential
- A61N1/36514—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure
- A61N1/36521—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure the parameter being derived from measurement of an electrical impedance
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/362—Heart stimulators
- A61N1/37—Monitoring; Protecting
- A61N1/3702—Physiological parameters
- A61N1/3704—Circuits specially adapted therefor, e.g. for sensitivity control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/08—Arrangements or circuits for monitoring, protecting, controlling or indicating
- A61N2001/083—Monitoring integrity of contacts, e.g. by impedance measurement
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/153—Feedback used to stabilise the amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/252—Multiple switches coupled in the input circuit of an amplifier are controlled by a circuit, e.g. feedback circuitry being controlling the switch
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/261—Amplifier which being suitable for instrumentation applications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/271—Indexing scheme relating to amplifiers the DC-isolation amplifier, e.g. chopper amplifier, modulation/demodulation amplifier, uses capacitive isolation means, e.g. capacitors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/372—Noise reduction and elimination in amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/375—Circuitry to compensate the offset being present in an amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45028—Indexing scheme relating to differential amplifiers the differential amplifier amplifying transistors are folded cascode coupled transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45138—Two or more differential amplifiers in IC-block form are combined, e.g. measuring amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45212—Indexing scheme relating to differential amplifiers the differential amplifier being designed to have a reduced offset
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45264—Indexing scheme relating to differential amplifiers the dif amp comprising frequency or phase stabilisation means
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45396—Indexing scheme relating to differential amplifiers the AAC comprising one or more switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45512—Indexing scheme relating to differential amplifiers the FBC comprising one or more capacitors, not being switched capacitors, and being coupled between the LC and the IC
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45534—Indexing scheme relating to differential amplifiers the FBC comprising multiple switches and being coupled between the LC and the IC
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45551—Indexing scheme relating to differential amplifiers the IC comprising one or more switched capacitors
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Power Engineering (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Biophysics (AREA)
- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Signal Processing (AREA)
- Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- Physiology (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Artificial Intelligence (AREA)
- Psychiatry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- Cardiology (AREA)
- Amplifiers (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
【選択図】図2
Description
式(1)から、計装用増幅器100の利得が入力キャパシタCinとフィードバックキャパシタCfbとの比、すなわち、キャパシタ106とキャパシタ112との比によって設定されることが明らかである。Cin/Cfbの比は100程度になるように選択することができる。キャパシタ112は、poly−polyキャパシタ、オンチップキャパシタ又は他の種類のMOSキャパシタとすることができ、良好にマッチしている、すなわち、対称であるべきである。
dQ/df=Cin・Fclock・ΔVin (3)
正フィードバック経路98は、再び変調器20のスイッチド入力キャパシタ13上に電荷を「戻す」か又は置くことによって実効抵抗を通過する電流を補償する。フィードバック経路98がない場合の計装用増幅器400の出力電圧は、差動入力電圧に、変調器20の入力キャパシタ106A、106BのキャパシタンスCinと、変調器34のフィードバックキャパシタ112A、112BのキャパシタンスCfbとの比を乗算した値に比例するため、スイッチドキャパシタ構成404(Cpos)は、ミキサ増幅器14の出力をサンプリングして、正フィードバックを使用して失われた電荷を戻す。換言すれば、正フィードバック経路98は、実効入力抵抗を通過する電流を補償する電流を注入する。正フィードバック経路98は、等価な低周波入力インピーダンスを1桁以上上昇させることができる。
Claims (37)
- チョッパ安定型計装用(instrumentation)増幅器であって、
負荷に印加するための、クロック周波数における交流(ac)刺激電流を生成するac源と、
前記刺激電流に応答して前記負荷から差動入力信号を受信するように結合されるミキサ増幅器であって、前記差動入力信号を増幅して増幅信号を生成し、前記クロック周波数における前記増幅信号を復調して出力信号を生成する、ミキサ増幅器と、
前記クロック周波数において前記出力信号の振幅を変調する第2の変調器と、
前記変調出力信号を差動フィードバック信号として前記差動入力信号に加えるフィードバック経路と、
を備える、チョッパ安定型計装用増幅器。 - 前記フィードバック経路は前記ミキサ増幅器の第1の入力に結合される第1のフィードバック経路分岐と、前記ミキサ増幅器の第2の入力に結合される第2のフィードバック経路分岐とを含み、前記第2の変調器は、互いに位相のずれがある前記出力信号の振幅を変調する、前記第1のフィードバック経路分岐内の変調器と、前記第2のフィードバック経路分岐内の変調器とを含む、請求項1に記載の増幅器。
- 前記第1のフィードバック経路分岐及び前記第2のフィードバック経路分岐のそれぞれは、フィードバックキャパシタンスを含み、前記ミキサ増幅器の前記第1の入力及び前記第2の入力のそれぞれは、入力キャパシタンスを介して前記差動入力信号を受信するように結合され、前記ミキサ増幅器の利得は少なくとも部分的に、前記フィードバックキャパシタンスと前記入力キャパシタンスとの比に依存する、請求項2に記載の増幅器。
- 前記フィードバック経路は第1のフィードバック経路であり、前記増幅器は、
前記出力信号を積分する積分器と、
前記積分出力信号を前記クロック周波数において変調して第2の差動フィードバック信号を生成する第3の変調器と、
前記第2の差動フィードバック信号を前記差動入力信号に加える第2のフィードバック経路と、
をさらに備える、請求項1に記載の増幅器。 - 前記第2のフィードバック経路は、前記ミキサ増幅器の第1の入力に結合される第1のフィードバック経路分岐と、前記ミキサ増幅器の第2の入力に結合される第2のフィードバック経路分岐とを含み、前記第3の変調器は、互いに位相のずれがある前記積分出力信号の振幅を変調する、前記第1のフィードバック経路分岐内の変調器と、前記第2のフィードバック経路分岐内の変調器とを含む、請求項4に記載の増幅器。
- 前記第2のフィードバック経路の前記第1のフィードバック経路分岐及び前記第2のフィードバック経路分岐のそれぞれは、フィードバックキャパシタンスを含み、前記第2のフィードバック経路は主としてハイパスカットオフ周波数よりも低い周波数にあり、前記第1のフィードバック経路は主として前記ハイパスカットオフ周波数を上回る周波数にある、請求項5に記載の増幅器。
- 前記ミキサ増幅器の第1の入力及び第2の入力のそれぞれは、入力キャパシタを介して前記差動入力信号を受信するように結合され、前記増幅器は、前記ミキサ増幅器の出力を、第1のスイッチドキャパシタを介して前記ミキサ増幅器の前記第1の入力に関連付けられる前記入力キャパシタに結合する第1のフィードバック経路分岐と、前記ミキサ増幅器の出力を、第2のスイッチドキャパシタを介して前記ミキサ増幅器の前記第2の入力に関連付けられる前記入力キャパシタに結合する第2のフィードバック経路分岐とを含むフィードバック経路をさらに備える、請求項1に記載の増幅器。
- 前記第1のスイッチドキャパシタ及び前記第2のスイッチドキャパシタのそれぞれは、スケーリングされた補償電荷を、前記入力キャパシタのうちのそれぞれの1つに印加するように構成される、請求項7に記載の増幅器。
- 前記増幅器は該増幅器に給電する電力源をさらに備え、該電力源は動作中、実質的に2.0マイクロアンペアを下回る電流を前記増幅器に送達し、実質的に2.0ボルトを下回る電圧を前記回路に送達する、請求項1〜8のいずれか一項に記載の増幅器。
- 前記ミキサ増幅器は第1のキャパシタを介して前記負荷に結合され、前記電圧源は第2のキャパシタ及び抵抗を介して前記負荷に結合される、請求項1〜8のいずれか一項に記載の増幅器。
- 前記負荷は生体組織負荷であり、前記第1の変調器及び前記ミキサ増幅器は該負荷から直流的に絶縁される、請求項1〜8のいずれか一項に記載の増幅器。
- 前記負荷と前記ミキサ増幅器との間に結合されるハイパスフィルタをさらに備える、請求項1〜8のいずれか一項に記載の増幅器。
- 前記計装用増幅器は埋め込み可能医療デバイス内に存在する、請求項1〜8のいずれか一項に記載の増幅器。
- 前記埋め込み可能医療デバイスは、心臓ペースメーカ、心臓ディフィブリレータ、電気神経刺激装置、及び埋め込み可能薬剤送達デバイスのうちの1つを含む、請求項1〜8のいずれか一項に記載の増幅器。
- 前記差動入力信号は前記負荷のインピーダンスを示す、請求項1〜8のいずれか一項に記載の増幅器。
- 前記ac源は、第1の電圧及び第2の電圧をクロック周波数において変調して前記負荷に印加するための前記刺激電流を生成する第1の変調器を備える、請求項1に記載の増幅器。
- 前記ミキサ増幅器は前記復調された信号を積分して前記出力信号を生成する、請求項1に記載の増幅器。
- 前記ミキサ増幅器を前記差動入力信号から選択的に減結合すると共に、前記第1の変調器及び前記第2の変調器を選択的にディセーブルするブランキング回路部をさらに備える、請求項1に記載の増幅器。
- チョッパ安定型計装用増幅器であって、
負荷に印加するための、クロック周波数における交流(ac)刺激電流を生成する手段であって、該刺激電流の該負荷への該印加によって、差動入力信号が生成される、生成する手段と、
前記差動入力信号を増幅する手段であって、増幅信号を生成する、増幅する手段と、
前記クロック周波数における前記増幅信号を復調する手段であって、出力信号を生成する、復調する手段と、
前記クロック周波数において前記出力信号の振幅を変調する手段と、
前記変調出力信号を差動フィードバック信号として前記差動入力信号に加える手段と、
を備える、チョッパ安定型計装用増幅器。 - クロック周波数における交流(ac)刺激電流を生成すること、
前記刺激電流を負荷に印加することであって、差動入力信号を生成する、印加すること、
ミキサ増幅器において前記差動入力信号を増幅することであって、増幅信号を生成する、増幅すること、
前記ミキサ増幅器において前記クロック周波数における前記増幅信号を復調することであって、出力信号を生成する、復調すること、
前記クロック周波数において前記出力信号の振幅を変調することであって、差動フィードバック信号を生成する、変調すること、及び
前記変調出力信号を差動フィードバック信号として、第1のフィードバック経路を介して前記差動入力信号に加えること、
を含む、方法。 - 前記方法は、前記ミキサ増幅器の第1の入力に結合される、前記第1のフィードバック経路の第1のフィードバック経路分岐、及び、前記ミキサ増幅器の第2の入力に結合される、前記第1のフィードバック経路の第2のフィードバック経路分岐を介して前記差動フィードバック信号を加えることをさらに含み、前記出力信号の振幅を変調することは、前記第1のフィードバック経路分岐において前記出力信号の前記振幅を変調すること、及び、前記第1のフィードバック経路分岐における変調と位相のずれがある、前記第2のフィードバック経路分岐において前記出力信号の前記振幅を変調することを含む、請求項20に記載の方法。
- 第1のフィードバック経路分岐及び第2のフィードバック経路分岐のそれぞれは、フィードバックキャパシタンスを含み、前記ミキサ増幅器の第1の入力及び第2の入力のそれぞれは、入力キャパシタンスを介して前記差動入力信号を受信するように結合され、前記ミキサ増幅器の利得は少なくとも部分的に、前記フィードバックキャパシタンスと前記入力キャパシタンスとの比に依存する、請求項20に記載の方法。
- 前記フィードバック経路は第1のフィードバック経路であり、前記方法は、
前記出力信号を積分すること、
前記積分出力信号を前記クロック周波数において変調することであって、第2の差動フィードバック信号を生成する、変調すること、及び
前記第2の差動フィードバック信号を第2のフィードバック経路を介して前記差動入力信号に加えること、
をさらに含む、請求項20に記載の方法。 - 前記第2のフィードバック経路は、前記ミキサ増幅器の第1の入力に結合される、前記第2のフィードバック経路の第1のフィードバック経路分岐と、前記ミキサ増幅器の第2の入力に結合される、前記第2のフィードバック経路の第2のフィードバック経路分岐とを含み、前記積分出力信号を変調することは、前記第1のフィードバック経路分岐において前記積分出力信号の前記振幅を変調すること、及び、前記第1のフィードバック経路分岐における変調と位相のずれがある、前記第2のフィードバック経路分岐において前記積分出力信号の前記振幅を変調することを含む、請求項23に記載の方法。
- 前記第2のフィードバック経路の前記第1のフィードバック経路分岐及び前記第2のフィードバック経路分岐のそれぞれは、フィードバックキャパシタンスを含み、前記第2のフィードバック経路は主としてハイパスカットオフ周波数よりも低い周波数にあり、前記第1のフィードバック経路は主として前記ハイパスカットオフ周波数を上回る周波数にある、請求項24に記載の方法。
- 前記ミキサ増幅器の第1の入力及び第2の入力のそれぞれは、入力キャパシタを介して前記差動入力信号を受信するように結合され、前記方法は、前記ミキサ増幅器の出力からのフィードバックを、第1のスイッチドキャパシタを介して前記ミキサ増幅器の前記第1の入力に関連付けられる前記入力キャパシタに適用すること、及び、前記ミキサ増幅器の前記出力からのフィードバックを、第2のスイッチドキャパシタを介して前記ミキサ増幅器の前記第2の入力に関連付けられる前記入力キャパシタに適用することをさらに含む、請求項20に記載の方法。
- スケーリングされた補償電荷をそれぞれの前記第1のスイッチドキャパシタ及び前記第2のスイッチドキャパシタを介して前記入力キャパシタのそれぞれに印加することをさらに含む、請求項26に記載の方法。
- 動作中、実質的に2.0マイクロアンペアを下回る電流及び実質的に2.0ボルトを下回る電圧で前記ミキサ増幅器に給電することをさらに含む、請求項20に記載の方法。
- 前記ミキサ増幅器を第1のキャパシタを介して前記負荷に結合すること、並びに、電圧源を、第2のキャパシタ及び抵抗を介して前記負荷に結合することをさらに含む、請求項20に記載の方法。
- 前記負荷は生体組織負荷であり、前記第1の変調器及び前記ミキサ増幅器は該負荷から直流的に絶縁される、請求項20〜29のいずれか一項に記載の方法。
- 前記差動入力信号の増幅の前に、該差動入力信号にハイパスフィルタを適用することをさらに含む、請求項20〜29のいずれか一項に記載の方法。
- 前記ミキサ増幅器は埋め込み可能医療デバイス内に存在する、請求項20〜29のいずれか一項に記載の方法。
- 前記埋め込み可能医療デバイスは、心臓ペースメーカ、心臓ディフィブリレータ、電気神経刺激装置、及び埋め込み可能薬剤送達デバイスのうちの1つを含む、請求項20〜29のいずれか一項に記載の方法。
- 前記差動入力信号に基づいて前記負荷のインピーダンスを推定することをさらに含む、請求項20〜29のいずれか一項に記載の方法。
- 前記ミキサ増幅器において、前記復調された信号を積分することであって、前記出力信号を生成する、積分することをさらに含む、請求項20に記載の方法。
- 前記ミキサ増幅器を前記差動入力信号から選択的に減結合すること、及び、前記第1の変調器及び前記第2の変調器を選択的にディセーブルすることをさらに含む、請求項20に記載の方法。
- 生物医学的インピーダンス検知デバイスであって、
生体負荷に印加するための、クロック周波数における交流(ac)刺激電流を生成するac源と、
前記刺激電流に応答して前記負荷から差動入力信号を受信するように結合されるミキサ増幅器であって、前記差動入力信号を増幅して増幅信号を生成すると共に、前記クロック周波数における前記増幅信号を復調して出力信号を生成する、ミキサ増幅器と、
前記クロック周波数において前記出力信号の振幅を変調する第2の変調器と、
前記変調出力信号を差動フィードバック信号として前記差動入力信号に印加するフィードバック経路と、
を備える、生物医学的インピーダンス検知デバイス。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/700,405 US7391257B1 (en) | 2007-01-31 | 2007-01-31 | Chopper-stabilized instrumentation amplifier for impedance measurement |
PCT/US2007/064788 WO2008094269A1 (en) | 2007-01-31 | 2007-03-23 | Chopper-stabilized instrumentation amplifier for impedance measurement |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2010517471A true JP2010517471A (ja) | 2010-05-20 |
Family
ID=38656616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009548231A Pending JP2010517471A (ja) | 2007-01-31 | 2007-03-23 | インピーダンス測定のためのチョッパ安定型計装用増幅器 |
Country Status (8)
Country | Link |
---|---|
US (3) | US7391257B1 (ja) |
EP (1) | EP2119000B1 (ja) |
JP (1) | JP2010517471A (ja) |
KR (1) | KR101114674B1 (ja) |
CN (1) | CN101589548B (ja) |
AT (1) | ATE469462T1 (ja) |
DE (1) | DE602007006847D1 (ja) |
WO (1) | WO2008094269A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012502581A (ja) * | 2008-09-11 | 2012-01-26 | アナログ デバイセス インコーポレーテッド | チョッパ安定化増幅器内のオフセットおよびリップルの抑制のための自動補正フィードバックループ |
JP2014527637A (ja) * | 2011-08-29 | 2014-10-16 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングRobert Bosch Gmbh | 自己バランシングキャパシタブリッジ用の読み出し回路 |
JPWO2014087980A1 (ja) * | 2012-12-04 | 2017-01-05 | 国立研究開発法人産業技術総合研究所 | 演算増幅器 |
KR20200069836A (ko) * | 2018-12-07 | 2020-06-17 | 울산과학기술원 | 리플을 저감하는 저항 감지 장치 및 방법 |
JP2021514818A (ja) * | 2018-02-22 | 2021-06-17 | ニューロニカ・ソチエタ・ペル・アツィオーニNewronika S.p.A. | 電気刺激によって神経障害を治療するための装置および装置によって収集された神経信号を処理するための方法 |
Families Citing this family (163)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2263061C (en) * | 1999-02-26 | 2011-01-25 | Ki-Jun Lee | Dual control analog delay element |
WO2005122888A1 (en) | 2004-06-18 | 2005-12-29 | The University Of Queensland | Oedema detection |
US7720546B2 (en) | 2004-09-30 | 2010-05-18 | Codman Neuro Sciences Sárl | Dual power supply switching circuitry for use in a closed system |
ATE431650T1 (de) * | 2005-06-21 | 2009-05-15 | Nxp Bv | Sendervorrichtung mit quasikonstanter lo-leckage für ein drahtloses kommunikationsgerät mit direkter konversionsarchitektur |
AU2006265761B2 (en) | 2005-07-01 | 2011-08-11 | Impedimed Limited | Monitoring system |
CA2609111C (en) | 2005-07-01 | 2016-10-18 | Scott Chetham | A method and apparatus for performing impedance measurements in accordance with determining an electrode arrangement using a displayed representation |
US8186358B2 (en) * | 2005-07-29 | 2012-05-29 | Codman Neuro Sciences Sárl | System and method for locating an internal device in a closed system |
EP1843465A1 (en) * | 2006-03-29 | 2007-10-10 | STMicroelectronics S.r.l. | Multiple feedback class-D amplifier |
US9615744B2 (en) * | 2007-01-31 | 2017-04-11 | Medtronic, Inc. | Chopper-stabilized instrumentation amplifier for impedance measurement |
US7391257B1 (en) * | 2007-01-31 | 2008-06-24 | Medtronic, Inc. | Chopper-stabilized instrumentation amplifier for impedance measurement |
US7385443B1 (en) | 2007-01-31 | 2008-06-10 | Medtronic, Inc. | Chopper-stabilized instrumentation amplifier |
US8265769B2 (en) * | 2007-01-31 | 2012-09-11 | Medtronic, Inc. | Chopper-stabilized instrumentation amplifier for wireless telemetry |
US7417462B1 (en) * | 2007-03-20 | 2008-08-26 | Altera Corporation | Variable external interface circuitry on programmable logic device integrated circuits |
JP5419861B2 (ja) | 2007-04-20 | 2014-02-19 | インぺディメッド リミテッド | インピーダンス測定装置および方法 |
US9788750B2 (en) * | 2007-04-30 | 2017-10-17 | Medtronic, Inc. | Seizure prediction |
US8781595B2 (en) | 2007-04-30 | 2014-07-15 | Medtronic, Inc. | Chopper mixer telemetry circuit |
US8380314B2 (en) | 2007-09-26 | 2013-02-19 | Medtronic, Inc. | Patient directed therapy control |
EP2211986B1 (en) | 2007-10-16 | 2013-11-20 | Medtronic, Inc. | Therapy control based on a patient movement state |
US9072870B2 (en) | 2008-01-25 | 2015-07-07 | Medtronic, Inc. | Sleep stage detection |
US20100309037A1 (en) * | 2008-01-30 | 2010-12-09 | Stephen Anthony Gerard Chandler | Sampling comparators |
AU2008207672B2 (en) | 2008-02-15 | 2013-10-31 | Impedimed Limited | Impedance Analysis |
EP3173125B1 (en) | 2008-07-30 | 2019-03-27 | Ecole Polytechnique Fédérale de Lausanne | Apparatus for optimized stimulation of a neurological target |
US8241222B2 (en) * | 2008-07-31 | 2012-08-14 | Medtronic, Inc. | Monitoring hemodynamic status based on intracardiac or vascular impedance |
EP2326245A4 (en) * | 2008-09-09 | 2013-12-11 | Martinez Fernando Seoane | METHOD AND APPARATUS FOR DETECTING BRAIN INJURIES |
FR2936115B1 (fr) * | 2008-09-18 | 2010-10-01 | St Microelectronics Sa | Amplificateur-melangeur pour chaine de reception radiofrequence. |
US8478402B2 (en) * | 2008-10-31 | 2013-07-02 | Medtronic, Inc. | Determining intercardiac impedance |
US20100113964A1 (en) * | 2008-10-31 | 2010-05-06 | Wahlstrand John D | Determining intercardiac impedance |
EP3563902B1 (en) | 2008-11-12 | 2021-07-14 | Ecole Polytechnique Fédérale de Lausanne | Microfabricated neurostimulation device |
WO2010124021A2 (en) * | 2009-04-21 | 2010-10-28 | Arizona Board Of Regents For And On Behalf Of Arizona State University | Communication interface for sensory stimulation |
JP5485618B2 (ja) | 2009-08-26 | 2014-05-07 | パナソニック株式会社 | センサ装置 |
EP2294979B1 (en) * | 2009-09-14 | 2013-12-18 | Imec | Method and electronic medical device for simultaneously measuring an impedance and a biopotential signal |
EP2298164B1 (en) * | 2009-09-14 | 2013-05-15 | Imec | Cardiac monitoring circuit with adaptive sampling |
EP2294978B1 (en) * | 2009-09-14 | 2013-09-04 | Imec | Adaptive sampling of an electrocardiogram |
WO2011050393A1 (en) | 2009-10-26 | 2011-05-05 | Impedimed Limited | Fluid level indicator determination |
US9770204B2 (en) | 2009-11-11 | 2017-09-26 | Medtronic, Inc. | Deep brain stimulation for sleep and movement disorders |
JP5755234B2 (ja) | 2009-11-18 | 2015-07-29 | インぺディメッド リミテッドImpedimed Limited | 患者−電極間測定のための装置およびシステム |
EP2506920B1 (en) | 2009-12-01 | 2016-07-13 | Ecole Polytechnique Fédérale de Lausanne | Microfabricated surface neurostimulation device and method of making the same |
US8650157B1 (en) * | 2010-02-10 | 2014-02-11 | Symantec Corporation | Systems and methods for deduplicating data transferred via physical storage media |
WO2011106225A2 (en) * | 2010-02-26 | 2011-09-01 | Newlife Sciences Llc | Apparatus and method for treatment of pain with body impedance analyzer |
US9549708B2 (en) | 2010-04-01 | 2017-01-24 | Ecole Polytechnique Federale De Lausanne | Device for interacting with neurological tissue and methods of making and using the same |
JP5710767B2 (ja) | 2010-09-28 | 2015-04-30 | マシモ コーポレイション | オキシメータを含む意識深度モニタ |
US8688223B2 (en) | 2010-10-26 | 2014-04-01 | John D. Wahlstrand | Implantable medical device impedance measurement module for communication with one or more lead-borne devices |
US8368436B1 (en) * | 2010-10-29 | 2013-02-05 | Maxim Integrated, Inc. | Programmable frequency synthesizer with I/Q outputs |
DE102011119888B4 (de) * | 2010-11-29 | 2013-07-04 | Institut Für Photonische Technologien E.V. | Schaltungsanordnung und Verfahren für eine extrem rauscharme, schnelle Zeitbereich-(time-domain)-Multiplexing-Auslesung für Sensoren |
US10085670B2 (en) | 2010-11-30 | 2018-10-02 | Newlife Sciences Llc | Apparatus and method for treatment of pain with body impedance analyzer |
US8599053B2 (en) * | 2010-12-22 | 2013-12-03 | Microchip Technology Incorporated | Switched-capacitance gain amplifier with improved input impedance |
US9086439B2 (en) | 2011-02-25 | 2015-07-21 | Maxim Integrated Products, Inc. | Circuits, devices and methods having pipelined capacitance sensing |
US8860432B2 (en) * | 2011-02-25 | 2014-10-14 | Maxim Integrated Products, Inc. | Background noise measurement and frequency selection in touch panel sensor systems |
DE112012001000T5 (de) | 2011-02-25 | 2013-11-21 | Maxim Integrated Products, Inc. | Kapazitive Berührungserkennungs-Architektur |
US8515545B2 (en) | 2011-04-29 | 2013-08-20 | Greatbatch Ltd. | Current steering neurostimulator device with unidirectional current sources |
US9101767B2 (en) | 2011-05-18 | 2015-08-11 | Greatbatch Ltd. | Measuring load impedance with active stimulation pulses in an implanted pulse generator |
US8571667B2 (en) | 2011-07-01 | 2013-10-29 | Greatbatch Ltd. | Active current control using the enclosure of an implanted pulse generator |
CN102931944B (zh) * | 2011-08-12 | 2016-09-07 | 飞思卡尔半导体公司 | 数字毛刺滤波器 |
TWI439046B (zh) * | 2011-08-12 | 2014-05-21 | Richtek Technology Corp | 自動調零放大器及相關的偵測模組 |
NL2007413C2 (en) * | 2011-09-14 | 2013-03-18 | Inbiolab B V | Digital signal processing method for processing a composite myoelectric signal. |
SE536219C2 (sv) | 2011-12-05 | 2013-07-02 | St Jude Medical Systems Ab | Aktiv brusutsläckningsanordning för medicinska intrakorporeala sensorer |
FR2984495B1 (fr) * | 2011-12-15 | 2016-04-15 | Valeo Systemes De Controle Moteur | Procede de mesure de la temperature |
US8493098B1 (en) | 2012-03-14 | 2013-07-23 | Honeywell International Inc. | Systems and methods for compensating the input offset voltage of a comparator |
US9126055B2 (en) | 2012-04-20 | 2015-09-08 | Cardiac Science Corporation | AED faster time to shock method and device |
US9295850B2 (en) * | 2012-04-24 | 2016-03-29 | Medtronic, Inc. | Charge-balancing during electrical stimulation |
CN102944744A (zh) * | 2012-11-06 | 2013-02-27 | 昆山北极光电子科技有限公司 | 一种低漂移在线阻抗测量电路 |
US9351653B1 (en) * | 2012-11-29 | 2016-05-31 | Intan Technologies, LLC | Multi-channel reconfigurable systems and methods for sensing biopotential signals |
CN103622688B (zh) * | 2013-01-10 | 2018-02-13 | 中国科学院电子学研究所 | 一种可贴式心电、心阻抗集成监测传感器 |
CN103166678B (zh) * | 2013-02-27 | 2015-04-22 | 黎辉 | 一种交流电削波脉冲编码控制技术 |
US9113805B2 (en) | 2013-03-04 | 2015-08-25 | Mortara Instrument, Inc. | Impedance measurement system |
US9439150B2 (en) | 2013-03-15 | 2016-09-06 | Medtronic, Inc. | Control of spectral agressors in a physiological signal montoring device |
US9521979B2 (en) | 2013-03-15 | 2016-12-20 | Medtronic, Inc. | Control of spectral agressors in a physiological signal monitoring device |
JP6298145B2 (ja) | 2013-03-15 | 2018-03-20 | アルフレッド イー. マン ファウンデーション フォー サイエンティフィック リサーチ | 高速のターンオン時間をもつ電流検出複数出力電流刺激装置 |
KR101937677B1 (ko) | 2013-03-20 | 2019-01-14 | 삼성전자주식회사 | 신호 증폭 장치 및 방법 |
JP5632570B1 (ja) * | 2013-03-22 | 2014-11-26 | パナソニック株式会社 | 生体信号計測システム、装置、方法およびそのプログラム |
WO2014174380A2 (en) * | 2013-04-22 | 2014-10-30 | Bacula Systems Sa | Creating a universally deduplicatable archive volume |
US9077301B2 (en) * | 2013-05-30 | 2015-07-07 | Keithley Instruments, Inc. | Nanovolt amplifier design |
JP5853996B2 (ja) * | 2013-06-10 | 2016-02-09 | コニカミノルタ株式会社 | 情報システム、情報機器およびコンピュータプログラム |
CA2919474C (en) | 2013-07-29 | 2020-05-05 | Alfred E. Mann Foundation For Scientific Research | Microprocessor controlled class e driver |
US20150046418A1 (en) * | 2013-08-09 | 2015-02-12 | Microsoft Corporation | Personalized content tagging |
KR102255204B1 (ko) * | 2013-08-28 | 2021-05-24 | 삼성전자주식회사 | 재구성 가능한 측정 장치 및 그 장치를 제어하는 방법 |
US9456763B2 (en) | 2013-09-11 | 2016-10-04 | Medtronic, Inc. | Apparatus and method for simultaneous capture of biopotential and tissue impedance signals |
TWI503668B (zh) * | 2013-09-14 | 2015-10-11 | Realtek Semiconductor Corp | 快速週邊組件互連裝置的控制電路與控制方法 |
CN103633945B (zh) * | 2013-11-29 | 2016-08-17 | 清华大学 | 源同步高速串行接口的时钟通路前端放大电路 |
KR101937676B1 (ko) | 2014-01-13 | 2019-01-14 | 삼성전자주식회사 | 생체 신호 증폭 회로 |
KR101987408B1 (ko) * | 2014-01-21 | 2019-06-11 | 삼성전자주식회사 | 생체 임피던스 측정 장치 및 방법 |
CN104950152B (zh) * | 2014-03-28 | 2020-03-13 | 特克特朗尼克公司 | 使用谐波混频的包括异步时间交错数字化器的测试和测量仪器 |
US11311718B2 (en) | 2014-05-16 | 2022-04-26 | Aleva Neurotherapeutics Sa | Device for interacting with neurological tissue and methods of making and using the same |
US10966620B2 (en) | 2014-05-16 | 2021-04-06 | Aleva Neurotherapeutics Sa | Device for interacting with neurological tissue and methods of making and using the same |
US10149628B2 (en) | 2014-05-20 | 2018-12-11 | Samsung Electronics Co., Ltd. | Signal processing method and apparatus |
DE102014009136B4 (de) * | 2014-06-18 | 2017-04-27 | Forschungszentrum Jülich GmbH | Gehäuse für ein medizinisches Implantat |
US9968301B2 (en) * | 2014-07-09 | 2018-05-15 | The Board Of Regents, The University Of Texas System | Body-driven pseudorandom signal injection for biomedical acquisition channel calibration |
KR102265066B1 (ko) | 2014-07-17 | 2021-06-15 | 삼성전자주식회사 | 생체 임피던스 측정 방법 및 장치 |
DE102015112098A1 (de) | 2014-07-25 | 2016-01-28 | Minnetronix, Inc. | Spulenparameter und Steuerung |
US9855376B2 (en) | 2014-07-25 | 2018-01-02 | Minnetronix, Inc. | Power scaling |
KR102399562B1 (ko) | 2014-07-28 | 2022-05-18 | 삼성전자주식회사 | 신호 처리 장치 및 방법, 생체 신호 처리 장치 및 방법 |
US9991878B2 (en) * | 2014-08-01 | 2018-06-05 | Texas Instruments Incorporated | Cross-point shifting techniques |
WO2016025915A1 (en) | 2014-08-15 | 2016-02-18 | Axonics Modulation Technologies, Inc. | Integrated electromyographic clinician programmer for use with an implantable neurostimulator |
CA3208375A1 (en) | 2014-08-15 | 2016-02-18 | Axonics, Inc. | External pulse generator device and associated methods for trial nerve stimulation |
EP3180073B1 (en) | 2014-08-15 | 2020-03-11 | Axonics Modulation Technologies, Inc. | System for neurostimulation electrode configurations based on neural localization |
US9700731B2 (en) | 2014-08-15 | 2017-07-11 | Axonics Modulation Technologies, Inc. | Antenna and methods of use for an implantable nerve stimulator |
US9802038B2 (en) | 2014-08-15 | 2017-10-31 | Axonics Modulation Technologies, Inc. | Implantable lead affixation structure for nerve stimulation to alleviate bladder dysfunction and other indication |
CN107073257B (zh) | 2014-08-15 | 2020-04-10 | 艾克索尼克斯调制技术股份有限公司 | 在用于治疗膀胱过度活动症的神经刺激系统中的肌电图引线定位和刺激滴定 |
US9474894B2 (en) | 2014-08-27 | 2016-10-25 | Aleva Neurotherapeutics | Deep brain stimulation lead |
US9403011B2 (en) | 2014-08-27 | 2016-08-02 | Aleva Neurotherapeutics | Leadless neurostimulator |
US9924904B2 (en) | 2014-09-02 | 2018-03-27 | Medtronic, Inc. | Power-efficient chopper amplifier |
WO2016054274A1 (en) * | 2014-09-30 | 2016-04-07 | The Regents Of The University Of California | High dyamic range sensing front-end for neural signal recording systems |
US10154815B2 (en) | 2014-10-07 | 2018-12-18 | Masimo Corporation | Modular physiological sensors |
US10045738B2 (en) | 2014-11-25 | 2018-08-14 | Medtronic Bakken Research Center B.V. | Tissue resistance measurement |
WO2016089411A1 (en) * | 2014-12-04 | 2016-06-09 | Hewlett-Packard Development Company, L.P. | Access to network-based storage resource based on hardware identifier |
KR102299862B1 (ko) * | 2014-12-23 | 2021-09-08 | 삼성전자주식회사 | 신호 처리 장치 및 방법 |
JP6320291B2 (ja) | 2014-12-26 | 2018-05-09 | アルプス電気株式会社 | 増幅回路及びこれを有する電流センサ |
WO2016112401A1 (en) | 2015-01-09 | 2016-07-14 | Axonics Modulation Technologies, Inc. | Attachment devices and associated methods of use with a nerve stimulation charging device |
US9895546B2 (en) | 2015-01-09 | 2018-02-20 | Axonics Modulation Technologies, Inc. | Patient remote and associated methods of use with a nerve stimulation system |
US10342908B2 (en) | 2015-01-14 | 2019-07-09 | Minnetronix, Inc. | Distributed transformer |
US10406267B2 (en) | 2015-01-16 | 2019-09-10 | Minnetronix, Inc. | Data communication in a transcutaneous energy transfer system |
CN104757964B (zh) * | 2015-04-13 | 2017-11-24 | 深圳市飞马与星月科技研究有限公司 | 心电信号采集的超高共模抑制电路及心电采集设备 |
US10193395B2 (en) | 2015-04-14 | 2019-01-29 | Minnetronix, Inc. | Repeater resonator |
US10542961B2 (en) | 2015-06-15 | 2020-01-28 | The Research Foundation For The State University Of New York | System and method for infrasonic cardiac monitoring |
CN107847731B (zh) | 2015-07-10 | 2019-06-28 | 艾克索尼克斯调制技术股份有限公司 | 具有无asic的内部电子设备的可植入神经刺激器以及使用方法 |
US10771044B2 (en) * | 2015-08-28 | 2020-09-08 | Vidatronic, Inc. | On-chip emulation of large resistors for integrating low frequency filters |
JP6574668B2 (ja) * | 2015-10-05 | 2019-09-11 | 株式会社東芝 | インピーダンス測定回路 |
KR102509819B1 (ko) | 2015-11-04 | 2023-03-14 | 삼성전자주식회사 | 신호 처리 장치 및 신호 처리 방법 |
AU2017212551B2 (en) | 2016-01-29 | 2021-05-27 | Axonics, Inc. | Methods and systems for frequency adjustment to optimize charging of implantable neurostimulator |
WO2017134587A1 (en) | 2016-02-02 | 2017-08-10 | Aleva Neurotherapeutics, Sa | Treatment of autoimmune diseases with deep brain stimulation |
CN108697897B (zh) | 2016-02-12 | 2023-01-13 | 艾克索尼克斯股份有限公司 | 用于试验神经刺激的外部脉冲发生器设备和相关联方法 |
US10118696B1 (en) | 2016-03-31 | 2018-11-06 | Steven M. Hoffberg | Steerable rotating projectile |
US9762191B1 (en) * | 2016-04-22 | 2017-09-12 | Solomon Systech Limited | System and method for offset cancellation for driving a display panel |
US9984639B2 (en) * | 2016-05-25 | 2018-05-29 | Parade Technologies, Ltd. | Adaptive spatial offset cancellation of source driver |
CN106100592A (zh) * | 2016-05-31 | 2016-11-09 | 徐海慧 | 一种低频放大电路 |
US9997925B2 (en) * | 2016-07-14 | 2018-06-12 | Getac Technology Corporation | Power supplying method and device thereof |
CN107786236B (zh) * | 2016-08-25 | 2020-01-21 | 瑞昱半导体股份有限公司 | 传收电路以及接收电路控制方法 |
US10365974B2 (en) * | 2016-09-16 | 2019-07-30 | Hewlett Packard Enterprise Development Lp | Acquisition of object names for portion index objects |
US10171033B2 (en) | 2016-11-03 | 2019-01-01 | Intel Corporation | Crystal oscillator interconnect architecture with noise immunity |
WO2018106877A1 (en) * | 2016-12-07 | 2018-06-14 | The Regent Of The University Of California | A high input impedance, high dynamic range, common-mode-interferer tolerant sensing front-end for neuromodulation systems |
JP2018098566A (ja) * | 2016-12-09 | 2018-06-21 | 日立金属株式会社 | 通信用ケーブルモジュールおよび伝送損失補償回路 |
US11191469B2 (en) | 2017-05-26 | 2021-12-07 | Analog Devices, Inc. | Biopotential measurement system and apparatus |
US10751524B2 (en) * | 2017-06-15 | 2020-08-25 | Cochlear Limited | Interference suppression in tissue-stimulating prostheses |
US10852136B2 (en) * | 2017-08-30 | 2020-12-01 | Analog Devices, Inc. | Frequency mismatch detection method for mode matching in gyroscopes |
US10587224B2 (en) | 2017-12-29 | 2020-03-10 | International Business Machines Corporation | Low-power multi-stage amplifier for capacitive reading of low-amplitude and low-frequency signals |
WO2019165108A1 (en) | 2018-02-22 | 2019-08-29 | Axonics Modulation Technologies, Inc. | Neurostimulation leads for trial nerve stimulation and methods of use |
US10702692B2 (en) | 2018-03-02 | 2020-07-07 | Aleva Neurotherapeutics | Neurostimulation device |
US11712637B1 (en) | 2018-03-23 | 2023-08-01 | Steven M. Hoffberg | Steerable disk or ball |
US11119063B2 (en) * | 2018-06-19 | 2021-09-14 | Samsung Electronics Co., Ltd. | Apparatus and method measuring bioimpedance and impedance |
US11298547B2 (en) | 2018-07-27 | 2022-04-12 | Medtronic, Inc. | Fluid status detection from a cardiac electrical signal and impedance signal |
JP7094190B2 (ja) * | 2018-10-16 | 2022-07-01 | 日置電機株式会社 | インピーダンス測定装置およびインピーダンス測定装置における負帰還回路の調整方法 |
US11617531B2 (en) * | 2018-11-23 | 2023-04-04 | Mediatek Inc. | Circuit applied to biopotential acquisition system |
CN109799448B (zh) * | 2018-12-20 | 2021-07-02 | 西安现代控制技术研究所 | 用于加速度计信号采集板的测试方法 |
CN111464149B (zh) * | 2019-01-18 | 2024-03-12 | 力智电子股份有限公司 | 滤波放大器 |
WO2020185902A1 (en) | 2019-03-11 | 2020-09-17 | Axonics Modulation Technologies, Inc. | Charging device with off-center coil |
JP2020148727A (ja) * | 2019-03-15 | 2020-09-17 | キオクシア株式会社 | 測定装置 |
US11349442B2 (en) * | 2019-03-21 | 2022-05-31 | Mediatek Inc. | Low-noise differential to single-ended converter |
KR20200128924A (ko) | 2019-05-07 | 2020-11-17 | 삼성전자주식회사 | 신호 측정 장치 및 방법 |
US11439829B2 (en) | 2019-05-24 | 2022-09-13 | Axonics, Inc. | Clinician programmer methods and systems for maintaining target operating temperatures |
WO2020242900A1 (en) | 2019-05-24 | 2020-12-03 | Axonics Modulation Technologies, Inc. | Trainer device for a neurostimulator programmer and associated methods of use with a neurostimulation system |
JP2022537947A (ja) | 2019-06-12 | 2022-08-31 | トゥルーリリーフ エルエルシー | パルス電流を生体組織に送達するためのシステムおよび方法 |
US11451366B2 (en) * | 2020-01-16 | 2022-09-20 | Mediatek Inc. | Lead-on detection circuitry of biopotential acquisition system |
CN113457008A (zh) * | 2020-03-30 | 2021-10-01 | 苏州景昱医疗器械有限公司 | 用于对患者进行神经刺激的方法和装置 |
US11936352B2 (en) | 2020-03-30 | 2024-03-19 | Apple Inc. | Amplifier circuit with distributed dynamic chopping |
KR20210132918A (ko) | 2020-04-28 | 2021-11-05 | 삼성전자주식회사 | 노이즈 필터링 회로 및 이를 포함하는 전자 회로 |
US11280818B2 (en) * | 2020-06-08 | 2022-03-22 | Hycon Technology Corporation | AC impedance measurement circuit with calibration function |
US11604229B2 (en) | 2020-12-28 | 2023-03-14 | Analog Devices International Unlimited Company | Techniques for determining energy storage device state of health |
KR102556196B1 (ko) | 2021-02-08 | 2023-07-14 | 서울대학교산학협력단 | 입력 임피던스가 높은 증폭 장치 |
US11911605B2 (en) | 2021-03-05 | 2024-02-27 | Truerelief Llc | Method and apparatus for injury treatment |
KR20230087976A (ko) | 2021-12-10 | 2023-06-19 | 삼성전자주식회사 | 노이즈 필터링 회로, 이를 포함하는 디지털 아날로그 컨버터와 전자 장치 |
US11811369B2 (en) * | 2022-03-10 | 2023-11-07 | Renesas Electronics America Inc. | Calibration and synchronization of ground current sensing amplifier with wireless power transmitter controller |
CN114533087B (zh) * | 2022-04-28 | 2022-08-26 | 之江实验室 | 一种基于斩波技术消除电极间直流偏移的方法及系统 |
CN117254816B (zh) * | 2023-11-17 | 2024-01-26 | 杭州万高科技股份有限公司 | 一种低噪声模数转换接口电路 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07120207A (ja) * | 1993-10-27 | 1995-05-12 | Matsushita Electric Ind Co Ltd | 歪み量測定回路 |
JP2006279377A (ja) * | 2005-03-29 | 2006-10-12 | Handotai Rikougaku Kenkyu Center:Kk | チョッパ増幅回路 |
Family Cites Families (131)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR501511A (fr) | 1919-02-08 | 1920-04-16 | Edwin Howard Armstrong | Méthode de réception d'oscillations de haute fréquence |
US3130373A (en) | 1959-04-27 | 1964-04-21 | Beckman Instruments Inc | Potential difference negative feedback amplifier |
GB1249395A (en) | 1968-03-11 | 1971-10-13 | Bofors Ab | Low frequency signal amplifier |
US3603997A (en) | 1969-05-07 | 1971-09-07 | Texas Instruments Inc | Electronic resolved sweep signal generator |
US3780725A (en) | 1971-03-04 | 1973-12-25 | Smith Kline Instr | Fetal heartbeat monitoring system with plural transducers in one plane and at different angles thereto |
US3735274A (en) * | 1971-08-10 | 1973-05-22 | Gen Motors Corp | Thermocouple signal amplifier |
US4138649A (en) | 1977-03-25 | 1979-02-06 | Emerson Electric Co. | Amplifier system |
JPS6017170B2 (ja) | 1977-08-23 | 1985-05-01 | 株式会社日本自動車部品総合研究所 | チヨツパ増幅器の復調回路 |
US4177819A (en) | 1978-03-30 | 1979-12-11 | Kofsky Harvey I | Muscle stimulating apparatus |
US4279258A (en) | 1980-03-26 | 1981-07-21 | Roy John E | Rapid automatic electroencephalographic evaluation |
US4612934A (en) | 1981-06-30 | 1986-09-23 | Borkan William N | Non-invasive multiprogrammable tissue stimulator |
US4610259A (en) | 1983-08-31 | 1986-09-09 | Cns, Inc. | EEG signal analysis system |
US4579125A (en) | 1984-01-23 | 1986-04-01 | Cns, Inc. | Real-time EEG spectral analyzer |
US5024221A (en) | 1985-05-17 | 1991-06-18 | Siemens-Pacesetter, Inc. | Programmable band-pass amplifier for use with implantable medical device |
GB2191660B (en) | 1986-06-14 | 1990-04-25 | Marconi Instruments Ltd | Measuring adjacent channel power |
US4733667A (en) | 1986-08-11 | 1988-03-29 | Cardiac Pacemakers, Inc. | Closed loop control of cardiac stimulator utilizing rate of change of impedance |
GB8818703D0 (en) | 1988-08-05 | 1988-09-07 | Gen Electric Co Plc | Delta sigma modulator arrangements |
US4933642A (en) | 1989-02-17 | 1990-06-12 | Linear Technology Corporation | CMOS chopper-stabilized operational amplifier using two differential amplifier pairs as input stages |
US4979230A (en) | 1989-12-04 | 1990-12-18 | General Instrument Corporation | Up-conversion homodyne receiver for cable television converter with frequency offset to avoid adjacent channel interference |
US5061593A (en) | 1989-12-12 | 1991-10-29 | Eastman Kodak Company | Coated carrier particles for electrographic developers |
US5179947A (en) | 1991-01-15 | 1993-01-19 | Cardiac Pacemakers, Inc. | Acceleration-sensitive cardiac pacemaker and method of operation |
US5477481A (en) | 1991-02-15 | 1995-12-19 | Crystal Semiconductor Corporation | Switched-capacitor integrator with chopper stabilization performed at the sampling rate |
US5105167A (en) | 1991-03-28 | 1992-04-14 | Honeywell Inc. | Harmonic injection amplifier |
US5113143A (en) | 1991-04-08 | 1992-05-12 | University Of Maryland | Chopper amplifier for measuring low DC current |
US5458117A (en) | 1991-10-25 | 1995-10-17 | Aspect Medical Systems, Inc. | Cerebral biopotential analysis system and method |
US5282840A (en) | 1992-03-26 | 1994-02-01 | Medtronic, Inc. | Multiple frequency impedance measurement system |
US5206602A (en) | 1992-04-30 | 1993-04-27 | Hewlett-Packard Company | Biomedical amplifier circuit |
US5334222A (en) | 1992-11-03 | 1994-08-02 | Cardiac Pacemakers, Inc. | Cardiac stimulating apparatus and method for heart failure therapy |
DE4238829A1 (de) | 1992-11-17 | 1994-05-19 | Dr Fischer Ag | Einrichtung zur Beeinflussung von elektrischen und magnetischen Feldern niedriger Frequenz |
US5311876A (en) | 1992-11-18 | 1994-05-17 | The Johns Hopkins University | Automatic detection of seizures using electroencephalographic signals |
FR2702902B1 (fr) | 1993-03-15 | 1995-04-21 | Alcatel Radiotelephone | Récepteur numérique à fréquence intermédiaire et procédé de filtrage en bande de base mis en Óoeuvre dans ce récepteur. |
DE4417228A1 (de) | 1994-05-17 | 1995-11-23 | Michael Dr Altwein | Dehnungsmeßstreifen-Meßanordnung, Verwendung derselben und Modulationsverstärker für derartige Meßanordnungen |
JP3310498B2 (ja) | 1994-09-02 | 2002-08-05 | 独立行政法人産業技術総合研究所 | 生体情報解析装置および生体情報解析方法 |
US5755230A (en) | 1995-09-18 | 1998-05-26 | Cleveland Medical Devices Inc. | Wireless EEG system for effective auditory evoked response |
DE19538925C2 (de) | 1995-10-19 | 2000-07-27 | Wieland Friedmund | Vorrichtung zur Auswertung eines Narkose- oder Intensiv-EEG |
US5683432A (en) | 1996-01-11 | 1997-11-04 | Medtronic, Inc. | Adaptive, performance-optimizing communication system for communicating with an implanted medical device |
US6463328B1 (en) | 1996-02-02 | 2002-10-08 | Michael Sasha John | Adaptive brain stimulation method and system |
US6066163A (en) | 1996-02-02 | 2000-05-23 | John; Michael Sasha | Adaptive brain stimulation method and system |
US5697091A (en) | 1996-02-07 | 1997-12-09 | Ford Motor Company | Distortion-free chopper-based signal mixer |
US5663680A (en) | 1996-04-04 | 1997-09-02 | Nordeng; Arnold E. | Chopper stabilized amplifier having an additional differential amplifier stage for improved noise reduction |
US5782884A (en) | 1996-11-05 | 1998-07-21 | Sulzer Intermedics Inc. | Rate responsive cardiac pacemaker with peak impedance detection for rate control |
US6064257A (en) | 1997-03-03 | 2000-05-16 | National Semiconductor Corporation | Chopper-stabilized operational amplifier |
US6016449A (en) | 1997-10-27 | 2000-01-18 | Neuropace, Inc. | System for treatment of neurological disorders |
US6016444A (en) | 1997-12-10 | 2000-01-18 | New York University | Automatic control of anesthesia using quantitative EEG |
SE9800126D0 (sv) | 1998-01-20 | 1998-01-20 | Pacesetter Ab | Implantable medical device |
US6651670B2 (en) * | 1998-02-13 | 2003-11-25 | Ventrica, Inc. | Delivering a conduit into a heart wall to place a coronary vessel in communication with a heart chamber and removing tissue from the vessel or heart wall to facilitate such communication |
US6667760B1 (en) | 1998-02-20 | 2003-12-23 | Samsung Electronics Co., Ltd. | Receiver for digital television signals having carriers near upper frequency boundaries of TV broadcasting channels |
US6076015A (en) | 1998-02-27 | 2000-06-13 | Cardiac Pacemakers, Inc. | Rate adaptive cardiac rhythm management device using transthoracic impedance |
US6122545A (en) | 1998-04-28 | 2000-09-19 | Medtronic, Inc. | Multiple channel sequential cardiac pacing method |
US6018682A (en) | 1998-04-30 | 2000-01-25 | Medtronic, Inc. | Implantable seizure warning system |
US5928272A (en) | 1998-05-02 | 1999-07-27 | Cyberonics, Inc. | Automatic activation of a neurostimulator device using a detection algorithm based on cardiac activity |
US6483355B1 (en) | 1998-07-24 | 2002-11-19 | Gct Semiconductor, Inc. | Single chip CMOS transmitter/receiver and method of using same |
US8762065B2 (en) | 1998-08-05 | 2014-06-24 | Cyberonics, Inc. | Closed-loop feedback-driven neuromodulation |
US6625436B1 (en) | 1998-10-09 | 2003-09-23 | Nec Corporation | Radio receivers |
WO2000030249A1 (en) * | 1998-11-12 | 2000-05-25 | Koninklijke Philips Electronics N.V. | Circuit comprising means for reducing the dc-offset and the noise produced by an amplifier |
US6287263B1 (en) | 1999-02-08 | 2001-09-11 | Cardiac Pacemakers, Inc. | System for processing bursted amplitude modulated signals using an impedance sensor |
US6130578A (en) | 1999-04-20 | 2000-10-10 | Analog Devices, Inc. | Chopper-stabilized amplifier with digital frequency modulated clocking and method |
US6360123B1 (en) | 1999-08-24 | 2002-03-19 | Impulse Dynamics N.V. | Apparatus and method for determining a mechanical property of an organ or body cavity by impedance determination |
FR2805998B1 (fr) | 2000-03-07 | 2002-10-18 | Ela Medical Sa | Dispositif medical implantable actif, notamment stimulateur cardiaque, defibrillateur et/ou cardioverteur du type multisite comportant des moyens de mesure d'impedance intracardiaque |
FR2806311B1 (fr) | 2000-03-14 | 2002-10-18 | Ela Medical Sa | Dispositif medical implantable actif, notamment stimulateur cardiaque, defibrillateur et/ou cardioverteur et/ou dispositif multisite comportant des moyens de mesure de bioimpedance transseptale |
DE10031522B9 (de) * | 2000-06-28 | 2007-07-12 | Infineon Technologies Ag | Frequenzkompensierte Verstärkeranordnung und Verfahren zum Betrieb einer frequenzkompensierten Verstärkeranordnung |
DE10032530C2 (de) | 2000-07-05 | 2002-10-24 | Infineon Technologies Ag | Verstärkerschaltung mit Offsetkompensation |
US6522914B1 (en) | 2000-07-14 | 2003-02-18 | Cardiac Pacemakers, Inc. | Method and apparatuses for monitoring hemodynamic activities using an intracardiac impedance-derived parameter |
US6456881B1 (en) | 2000-08-02 | 2002-09-24 | Pacesetter, Inc. | System and method of identifying fusion for dual-chamber automatic capture stimulation device |
US6456159B1 (en) | 2000-09-08 | 2002-09-24 | Analog Devices, Inc. | CMOS operational amplifier |
US6594524B2 (en) | 2000-12-12 | 2003-07-15 | The Trustees Of The University Of Pennsylvania | Adaptive method and apparatus for forecasting and controlling neurological disturbances under a multi-level control |
IT1318370B1 (it) | 2000-12-21 | 2003-08-25 | Tonino Bombardini | Metodo e dispositivo per la diagnosi e la terapia dello scompensocardiaco cronico. |
WO2002064024A2 (en) | 2001-02-13 | 2002-08-22 | Jordan Neuroscience, Inc. | Automated realtime interpretation of brain waves |
AUPR343401A0 (en) | 2001-02-28 | 2001-03-29 | Nguyen, Hung | Modelling and design for early warning systems using physiological responses |
US6671555B2 (en) | 2001-04-27 | 2003-12-30 | Medtronic, Inc. | Closed loop neuromodulation for suppression of epileptic activity |
US6810285B2 (en) | 2001-06-28 | 2004-10-26 | Neuropace, Inc. | Seizure sensing and detection using an implantable device |
US6754535B2 (en) | 2001-07-09 | 2004-06-22 | St. Jude Medical Ab | Method and apparatus for verifying evoked response in the atrium |
US6617838B1 (en) | 2001-09-11 | 2003-09-09 | Analog Devices, Inc. | Current measurement circuit |
GB0121993D0 (en) | 2001-09-12 | 2001-10-31 | Koninkl Philips Electronics Nv | Improvements in or relating to superheterodyne recievers |
JP3520418B2 (ja) * | 2002-02-04 | 2004-04-19 | セイコーエプソン株式会社 | 演算増幅回路、駆動回路及び演算増幅回路の制御方法 |
EP1480721A4 (en) | 2002-02-04 | 2007-09-12 | Great Lakes Biosciences Llc | TREATMENT OF NEUROLOGICAL ILLNESSES WITH ELECTRICAL STIMULATION |
US20030146786A1 (en) | 2002-02-04 | 2003-08-07 | Kush Gulati | ADC having chopper offset cancellation |
SE0200921D0 (sv) | 2002-03-25 | 2002-03-25 | St Jude Medical | A heart monitoring device, a system including such a device and a manner of using the system |
US6914539B2 (en) | 2002-10-07 | 2005-07-05 | General Electric Company | System and method for a low rate, in-band broadcast communication for medical telemetry |
EP1558130A4 (en) | 2002-10-15 | 2009-01-28 | Medtronic Inc | SCREENING TECHNIQUES FOR THE TREATMENT OF A DISEASE OF THE NERVOUS SYSTEM |
AU2003288599A1 (en) | 2002-12-18 | 2004-07-09 | Koninklijke Philips Electronics N.V. | Phase corrected miller compensation of chopper and nested chopper amplifiers |
US6842486B2 (en) | 2003-01-21 | 2005-01-11 | Cirrus Logic, Inc. | Signal processing system with baseband noise modulation and noise fold back reduction |
US7254500B2 (en) | 2003-03-31 | 2007-08-07 | The Salk Institute For Biological Studies | Monitoring and representing complex signals |
US7038532B1 (en) | 2003-04-15 | 2006-05-02 | University Of Rochester | Switched-capacitor high-pass mirrored integrator |
US7177609B1 (en) | 2003-05-16 | 2007-02-13 | National Semiconductor Corporation | Chopper-direct-conversion (CDC) radio architecture |
US6993380B1 (en) | 2003-06-04 | 2006-01-31 | Cleveland Medical Devices, Inc. | Quantitative sleep analysis method and system |
US7171258B2 (en) | 2003-06-25 | 2007-01-30 | Cardiac Pacemakers, Inc. | Method and apparatus for trending a physiological cardiac parameter |
US7668591B2 (en) | 2003-09-18 | 2010-02-23 | Cardiac Pacemakers, Inc. | Automatic activation of medical processes |
US7010347B2 (en) | 2004-02-14 | 2006-03-07 | Pacesetter, Inc. | Optimization of impedance signals for closed loop programming of cardiac resynchronization therapy devices |
GB2408643A (en) | 2003-11-27 | 2005-06-01 | Zarlink Semiconductor Ltd | Double conversion tuner with tuneable bandpass filters |
US20080015659A1 (en) | 2003-12-24 | 2008-01-17 | Yi Zhang | Neurostimulation systems and methods for cardiac conditions |
US7098823B2 (en) | 2004-01-15 | 2006-08-29 | Analog Devices, Inc. | Reduced chop rate analog to digital converter system and method |
GB0413945D0 (en) | 2004-06-22 | 2004-07-28 | Zarlink Semiconductor Ltd | Tuner arrangement for broadband reception |
EP1612934B1 (en) * | 2004-06-29 | 2018-07-25 | Lantiq Beteiligungs-GmbH & Co.KG | Class d-amplifier |
KR100771858B1 (ko) * | 2004-07-13 | 2007-11-01 | 삼성전자주식회사 | 정지 전류 및 출력 전류의 제어가 용이한 ab급 증폭 회로 |
FR2874331B1 (fr) | 2004-08-18 | 2006-10-27 | Ela Medical Sa | Dispositif medical implantable actif comprenant des moyens du volume intracardiaque |
US7295061B1 (en) * | 2004-09-02 | 2007-11-13 | Marvell International Ltd. | Fully integrated programmable gain chopper amplifier with self DC offset suppression |
US7205920B2 (en) | 2004-09-17 | 2007-04-17 | Analog Devices, Inc. | Continuous-time-sigma-delta DAC using chopper stabalization |
US7193545B2 (en) | 2004-09-17 | 2007-03-20 | Analog Devices, Inc. | Differential front-end continuous-time sigma-delta ADC using chopper stabilization |
WO2006066280A1 (en) | 2004-12-17 | 2006-06-22 | Medtronic, Inc. | System and method for monitoring or treating nervous system disorders |
US7184487B2 (en) | 2004-12-21 | 2007-02-27 | Motorola, Inc. | Receiver with chopper stabilization and method thereof |
US7805191B2 (en) | 2005-01-31 | 2010-09-28 | Physio-Control, Inc. | CPR time indicator for a defibrillator data management system |
EP1690566B1 (en) | 2005-02-09 | 2008-04-09 | Raul Chirife | Ischemia detector |
US7447543B2 (en) | 2005-02-15 | 2008-11-04 | Regents Of The University Of Minnesota | Pathology assessment with impedance measurements using convergent bioelectric lead fields |
US7239927B2 (en) | 2005-03-31 | 2007-07-03 | Medtronic, Inc. | Implantable medical device including self-bootstrapped therapy pulse output circuit switches |
US8311616B2 (en) | 2005-05-26 | 2012-11-13 | Yissum Research Development Company Of The Hebrew University Of Jerusalem | Method and system for determination of physiological conditions and emotional states of a living organism |
GB2427091A (en) | 2005-06-08 | 2006-12-13 | Zarlink Semiconductor Ltd | Baseband quadrature frequency down-converter receiver having quadrature up-converter stage |
US7376463B2 (en) | 2005-06-29 | 2008-05-20 | Cardiac Pacemakers, Inc. | Therapy control based on the rate of change of intracardiac impedance |
US7783343B2 (en) | 2005-07-07 | 2010-08-24 | The General Electric Company | Monitoring of the cerebral state of a subject |
US7904144B2 (en) | 2005-08-02 | 2011-03-08 | Brainscope Company, Inc. | Method for assessing brain function and portable automatic brain function assessment apparatus |
JP4694323B2 (ja) * | 2005-09-09 | 2011-06-08 | ルネサスエレクトロニクス株式会社 | 差動増幅回路および半導体装置 |
US7403758B2 (en) | 2005-10-04 | 2008-07-22 | Freescale Semicondutor, Inc. | Linearized and balanced mixer apparatus and signal mixing method |
DE602005027713D1 (de) * | 2005-12-02 | 2011-06-09 | St Microelectronics Srl | Vorrichtung und Verfahren zum Auslesen eines kapazitiven Sensors insbesondere eines mikro-elektromechanischen Sensors |
JP2007171225A (ja) * | 2005-12-19 | 2007-07-05 | Sony Corp | 増幅回路、液晶表示装置用駆動回路及び液晶表示装置 |
US7671672B2 (en) | 2005-12-22 | 2010-03-02 | Sirf Technology, Inc. | Baseband noise reduction |
US20070249953A1 (en) | 2006-04-21 | 2007-10-25 | Medtronic, Inc. | Method and apparatus for detection of nervous system disorders |
US7391257B1 (en) | 2007-01-31 | 2008-06-24 | Medtronic, Inc. | Chopper-stabilized instrumentation amplifier for impedance measurement |
US9615744B2 (en) | 2007-01-31 | 2017-04-11 | Medtronic, Inc. | Chopper-stabilized instrumentation amplifier for impedance measurement |
US8265769B2 (en) | 2007-01-31 | 2012-09-11 | Medtronic, Inc. | Chopper-stabilized instrumentation amplifier for wireless telemetry |
US7385443B1 (en) | 2007-01-31 | 2008-06-10 | Medtronic, Inc. | Chopper-stabilized instrumentation amplifier |
JP4717841B2 (ja) | 2007-02-16 | 2011-07-06 | キヤノン株式会社 | 記録再生装置 |
US8862221B2 (en) | 2007-02-21 | 2014-10-14 | St. Jude Medical Ab | Monitoring mechanical heart properties |
WO2008105692A1 (en) | 2007-02-28 | 2008-09-04 | St. Jude Medical Ab | Medical device for detecting ischemia and a method for such a device |
US8594779B2 (en) | 2007-04-30 | 2013-11-26 | Medtronic, Inc. | Seizure prediction |
US9788750B2 (en) | 2007-04-30 | 2017-10-17 | Medtronic, Inc. | Seizure prediction |
US8781595B2 (en) | 2007-04-30 | 2014-07-15 | Medtronic, Inc. | Chopper mixer telemetry circuit |
US20090082691A1 (en) | 2007-09-26 | 2009-03-26 | Medtronic, Inc. | Frequency selective monitoring of physiological signals |
US7714757B2 (en) | 2007-09-26 | 2010-05-11 | Medtronic, Inc. | Chopper-stabilized analog-to-digital converter |
US8478402B2 (en) | 2008-10-31 | 2013-07-02 | Medtronic, Inc. | Determining intercardiac impedance |
US20100113964A1 (en) | 2008-10-31 | 2010-05-06 | Wahlstrand John D | Determining intercardiac impedance |
JP5615112B2 (ja) | 2010-09-21 | 2014-10-29 | 日本コヴィディエン株式会社 | 臓器固定具及び臓器固定具の導入具 |
-
2007
- 2007-01-31 US US11/700,405 patent/US7391257B1/en active Active
- 2007-03-23 KR KR1020097018019A patent/KR101114674B1/ko active IP Right Grant
- 2007-03-23 WO PCT/US2007/064788 patent/WO2008094269A1/en active Application Filing
- 2007-03-23 EP EP07811832A patent/EP2119000B1/en active Active
- 2007-03-23 DE DE602007006847T patent/DE602007006847D1/de active Active
- 2007-03-23 JP JP2009548231A patent/JP2010517471A/ja active Pending
- 2007-03-23 CN CN2007800505019A patent/CN101589548B/zh active Active
- 2007-03-23 AT AT07811832T patent/ATE469462T1/de not_active IP Right Cessation
-
2008
- 2008-03-28 US US12/058,066 patent/US7622988B2/en active Active
-
2009
- 2009-10-14 US US12/579,276 patent/US9197173B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07120207A (ja) * | 1993-10-27 | 1995-05-12 | Matsushita Electric Ind Co Ltd | 歪み量測定回路 |
JP2006279377A (ja) * | 2005-03-29 | 2006-10-12 | Handotai Rikougaku Kenkyu Center:Kk | チョッパ増幅回路 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012502581A (ja) * | 2008-09-11 | 2012-01-26 | アナログ デバイセス インコーポレーテッド | チョッパ安定化増幅器内のオフセットおよびリップルの抑制のための自動補正フィードバックループ |
JP2014527637A (ja) * | 2011-08-29 | 2014-10-16 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングRobert Bosch Gmbh | 自己バランシングキャパシタブリッジ用の読み出し回路 |
JPWO2014087980A1 (ja) * | 2012-12-04 | 2017-01-05 | 国立研究開発法人産業技術総合研究所 | 演算増幅器 |
JP2021514818A (ja) * | 2018-02-22 | 2021-06-17 | ニューロニカ・ソチエタ・ペル・アツィオーニNewronika S.p.A. | 電気刺激によって神経障害を治療するための装置および装置によって収集された神経信号を処理するための方法 |
JP7232268B2 (ja) | 2018-02-22 | 2023-03-02 | ニューロニカ・ソチエタ・ペル・アツィオーニ | 電気刺激によって神経障害を治療するための装置および装置によって収集された神経信号を処理するための方法 |
KR20200069836A (ko) * | 2018-12-07 | 2020-06-17 | 울산과학기술원 | 리플을 저감하는 저항 감지 장치 및 방법 |
KR102128024B1 (ko) | 2018-12-07 | 2020-06-29 | 울산과학기술원 | 리플을 저감하는 저항 감지 장치 및 방법 |
Also Published As
Publication number | Publication date |
---|---|
KR20090104908A (ko) | 2009-10-06 |
US9197173B2 (en) | 2015-11-24 |
WO2008094269A1 (en) | 2008-08-07 |
CN101589548A (zh) | 2009-11-25 |
US20100033240A1 (en) | 2010-02-11 |
US7391257B1 (en) | 2008-06-24 |
CN101589548B (zh) | 2012-08-15 |
US7622988B2 (en) | 2009-11-24 |
KR101114674B1 (ko) | 2012-05-08 |
EP2119000A1 (en) | 2009-11-18 |
EP2119000B1 (en) | 2010-05-26 |
DE602007006847D1 (de) | 2010-07-08 |
ATE469462T1 (de) | 2010-06-15 |
US20080183098A1 (en) | 2008-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7391257B1 (en) | Chopper-stabilized instrumentation amplifier for impedance measurement | |
EP2127072B1 (en) | Chopper-stabilized instrumentation amplifier | |
EP2127073B1 (en) | Chopper-stabilized instrumentation amplifier for wireless telemetry | |
US9615744B2 (en) | Chopper-stabilized instrumentation amplifier for impedance measurement | |
US7714757B2 (en) | Chopper-stabilized analog-to-digital converter | |
US9788750B2 (en) | Seizure prediction | |
US8594779B2 (en) | Seizure prediction | |
US20140288393A1 (en) | Chopper mixer telemetry circuit | |
EP2147500B1 (en) | Chopper mixer telemetry circuit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20100203 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20110414 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20110419 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20110719 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20110726 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20111019 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20120328 |