CA992155A - Method and apparatus for detecting and monitoring venous blood volume changes - Google Patents

Method and apparatus for detecting and monitoring venous blood volume changes

Info

Publication number
CA992155A
CA992155A CA123,561A CA123561A CA992155A CA 992155 A CA992155 A CA 992155A CA 123561 A CA123561 A CA 123561A CA 992155 A CA992155 A CA 992155A
Authority
CA
Canada
Prior art keywords
detecting
blood volume
venous blood
volume changes
monitoring venous
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.)
Expired
Application number
CA123,561A
Other languages
English (en)
Other versions
CA123561S (en
Inventor
Hewitt B. Wheeler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Codman and Shurtleff Inc
Original Assignee
Codman and Shurtleff Inc
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 Codman and Shurtleff Inc filed Critical Codman and Shurtleff Inc
Application granted granted Critical
Publication of CA992155A publication Critical patent/CA992155A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/026—Measuring blood flow
    • A61B5/0295—Measuring blood flow using plethysmography, i.e. measuring the variations in the volume of a body part as modified by the circulation of blood therethrough, e.g. impedance plethysmography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0535—Impedance plethysmography

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Public Health (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Cardiology (AREA)
  • Physiology (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
CA123,561A 1970-09-24 1971-09-23 Method and apparatus for detecting and monitoring venous blood volume changes Expired CA992155A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7522770A 1970-09-24 1970-09-24

Publications (1)

Publication Number Publication Date
CA992155A true CA992155A (en) 1976-06-29

Family

ID=22124371

Family Applications (1)

Application Number Title Priority Date Filing Date
CA123,561A Expired CA992155A (en) 1970-09-24 1971-09-23 Method and apparatus for detecting and monitoring venous blood volume changes

Country Status (6)

Country Link
AU (1) AU471144B2 (fr)
CA (1) CA992155A (fr)
DE (1) DE2147368B2 (fr)
FR (1) FR2106315A5 (fr)
GB (1) GB1359531A (fr)
SE (1) SE378755B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3835839A (en) * 1972-12-08 1974-09-17 Systron Donner Corp Impedance plethysmograph and flow rate computer adjunct and method for use therewith
RU2127999C1 (ru) * 1997-01-24 1999-03-27 Лузянин Андрей Геннадьевич Неинвазивный способ определения параметров гемодинамики в биообъектах и устройство для его осуществления
US10314532B2 (en) 2013-07-29 2019-06-11 The Regents Of The University Of Michigan Evaluating cardiovascular health using intravascular volume
CN106377259B (zh) * 2016-08-30 2019-05-31 苏州涵轩信息科技有限公司 一种血液状态检测装置及获取阻抗变化值的方法

Also Published As

Publication number Publication date
DE2147368B2 (de) 1979-09-20
FR2106315A5 (fr) 1972-04-28
AU471144B2 (en) 1976-04-08
DE2147368A1 (de) 1972-04-06
GB1359531A (en) 1974-07-10
AU3384171A (en) 1973-03-29
SE378755B (fr) 1975-09-15

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