GB2100864B - Investigating substances in bloodstream and detecting blood flow - Google Patents

Investigating substances in bloodstream and detecting blood flow

Info

Publication number
GB2100864B
GB2100864B GB08203138A GB8203138A GB2100864B GB 2100864 B GB2100864 B GB 2100864B GB 08203138 A GB08203138 A GB 08203138A GB 8203138 A GB8203138 A GB 8203138A GB 2100864 B GB2100864 B GB 2100864B
Authority
GB
United Kingdom
Prior art keywords
bloodstream
blood flow
detecting blood
investigating substances
investigating
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
GB08203138A
Other versions
GB2100864A (en
Inventor
Peter Rolfe
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB08203138A priority Critical patent/GB2100864B/en
Publication of GB2100864A publication Critical patent/GB2100864A/en
Application granted granted Critical
Publication of GB2100864B publication Critical patent/GB2100864B/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
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14542—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, 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
    • A61B5/02—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
    • 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
    • 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, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
    • 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, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1468—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means
    • A61B5/1477—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means non-invasive
    • 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, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1491—Heated applicators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/661—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters using light

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Optics & Photonics (AREA)
  • Hematology (AREA)
  • Cardiology (AREA)
  • Physiology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Emergency Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
GB08203138A 1978-05-24 1982-02-03 Investigating substances in bloodstream and detecting blood flow Expired GB2100864B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08203138A GB2100864B (en) 1978-05-24 1982-02-03 Investigating substances in bloodstream and detecting blood flow

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2213278 1978-05-24
GB08203138A GB2100864B (en) 1978-05-24 1982-02-03 Investigating substances in bloodstream and detecting blood flow

Publications (2)

Publication Number Publication Date
GB2100864A GB2100864A (en) 1983-01-06
GB2100864B true GB2100864B (en) 1983-06-02

Family

ID=26255753

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08203138A Expired GB2100864B (en) 1978-05-24 1982-02-03 Investigating substances in bloodstream and detecting blood flow

Country Status (1)

Country Link
GB (1) GB2100864B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9200731A (en) * 1992-04-22 1993-11-16 Jacob Korf METHOD AND APPARATUS FOR NON-INVASIVE MONITORING OF THE CONCENTRATION OF SUBSTANCES IN BLOOD.
US7315767B2 (en) 2001-03-06 2008-01-01 Solianis Holding Ag Impedance spectroscopy based systems and methods
DE60124714T2 (en) 2001-03-06 2007-08-02 Solianis Holding Ag DEVICE FOR DETERMINING GLUCOSE CONCENTRATION IN BODY FLUID
US6801041B2 (en) * 2002-05-14 2004-10-05 Abbott Laboratories Sensor having electrode for determining the rate of flow of a fluid
ATE419783T1 (en) 2002-09-24 2009-01-15 Solianis Holding Ag DEVICE FOR MEASURING GLUCOSE CONCENTRATIONS
ATE531309T1 (en) 2003-12-02 2011-11-15 Solianis Holding Ag DEVICE AND METHOD FOR MEASURING A PROPERTY OF LIVING TISSUE
DE602004021515D1 (en) 2004-06-07 2009-07-23 Solianis Holding Ag METHOD AND DEVICE FOR DETERMINING A PARAMETER IN LIVING TISSUE
WO2007053963A1 (en) 2005-11-10 2007-05-18 Solianis Holding Ag Device for determining the glucose level in body tissue
WO2013061245A1 (en) * 2011-10-28 2013-05-02 Koninklijke Philips Electronics N.V. Sensor for fluid-soluble gas
RU2613199C2 (en) * 2011-10-28 2017-03-15 Конинклейке Филипс Н.В. Sensor for fluid-soluble gas
EP3232928B1 (en) 2014-12-15 2023-06-07 Radiometer Basel AG Apparatus and method for non-invasively determining the concentration of an analyte

Also Published As

Publication number Publication date
GB2100864A (en) 1983-01-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee