FR2431129A1 - Measuring deformability of erythrocytes suspended in blood - requires measurement of time for sample to pass through filter when driven by given pressure - Google Patents

Measuring deformability of erythrocytes suspended in blood - requires measurement of time for sample to pass through filter when driven by given pressure

Info

Publication number
FR2431129A1
FR2431129A1 FR7821112A FR7821112A FR2431129A1 FR 2431129 A1 FR2431129 A1 FR 2431129A1 FR 7821112 A FR7821112 A FR 7821112A FR 7821112 A FR7821112 A FR 7821112A FR 2431129 A1 FR2431129 A1 FR 2431129A1
Authority
FR
France
Prior art keywords
sample
blood
filter
pass
time
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.)
Granted
Application number
FR7821112A
Other languages
French (fr)
Other versions
FR2431129B1 (en
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.)
GOELLA LABORATOIRES
Original Assignee
GOELLA LABORATOIRES
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 GOELLA LABORATOIRES filed Critical GOELLA LABORATOIRES
Priority to FR7821112A priority Critical patent/FR2431129A1/en
Publication of FR2431129A1 publication Critical patent/FR2431129A1/en
Application granted granted Critical
Publication of FR2431129B1 publication Critical patent/FR2431129B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
    • G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
    • G01N11/06—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by timing the outflow of a known quantity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483—Physical analysis of biological material
    • G01N33/487—Physical analysis of biological material of liquid biological material
    • G01N33/49—Blood

Abstract

The deformability of erythrocytes suspended in blood is determined by measuring the time for a sample to pass through a filtration assembly. A tube (28) in the side of an enclosure (21) allows the inside to be pressurised by compressed air. A predetermined quantity of a sample is injected by a syringe (38) and without modifying the internal pressure. A rubber joint (23) separates this enclosure from a lower enclosure (22) which contains a graduated tube (33) to collect the sample after it passes through a filter (25) when a tap (35) in a tube (34) is opened.
FR7821112A 1978-07-11 1978-07-11 Measuring deformability of erythrocytes suspended in blood - requires measurement of time for sample to pass through filter when driven by given pressure Granted FR2431129A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7821112A FR2431129A1 (en) 1978-07-11 1978-07-11 Measuring deformability of erythrocytes suspended in blood - requires measurement of time for sample to pass through filter when driven by given pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7821112A FR2431129A1 (en) 1978-07-11 1978-07-11 Measuring deformability of erythrocytes suspended in blood - requires measurement of time for sample to pass through filter when driven by given pressure

Publications (2)

Publication Number Publication Date
FR2431129A1 true FR2431129A1 (en) 1980-02-08
FR2431129B1 FR2431129B1 (en) 1981-04-17

Family

ID=9210778

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821112A Granted FR2431129A1 (en) 1978-07-11 1978-07-11 Measuring deformability of erythrocytes suspended in blood - requires measurement of time for sample to pass through filter when driven by given pressure

Country Status (1)

Country Link
FR (1) FR2431129A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984001429A1 (en) * 1982-10-04 1984-04-12 Nuclepore Corp Process and device for erythrocyte deformation determination
EP1072879A2 (en) * 1999-07-26 2001-01-31 Alvise Cortinovis Method and equipment for the determination of general and capillary viscosity of blood

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2405839A1 (en) * 1974-02-07 1975-08-21 Schmid Schoenbein Holger Dr Me Measurement of particle flexibility - partic for red blood cells, by measuring the time of passage through a constriction

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2405839A1 (en) * 1974-02-07 1975-08-21 Schmid Schoenbein Holger Dr Me Measurement of particle flexibility - partic for red blood cells, by measuring the time of passage through a constriction

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984001429A1 (en) * 1982-10-04 1984-04-12 Nuclepore Corp Process and device for erythrocyte deformation determination
US4491012A (en) * 1982-10-04 1985-01-01 Nuclepore Corp. Method for measuring erythrocyte deformability
EP1072879A2 (en) * 1999-07-26 2001-01-31 Alvise Cortinovis Method and equipment for the determination of general and capillary viscosity of blood
EP1072879A3 (en) * 1999-07-26 2003-03-05 Alvise Cortinovis Method and equipment for the determination of general and capillary viscosity of blood

Also Published As

Publication number Publication date
FR2431129B1 (en) 1981-04-17

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