JPS5779434A - Particle analyzing device - Google Patents

Particle analyzing device

Info

Publication number
JPS5779434A
JPS5779434A JP55154994A JP15499480A JPS5779434A JP S5779434 A JPS5779434 A JP S5779434A JP 55154994 A JP55154994 A JP 55154994A JP 15499480 A JP15499480 A JP 15499480A JP S5779434 A JPS5779434 A JP S5779434A
Authority
JP
Japan
Prior art keywords
time
particles
memory
read
circuit
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
JP55154994A
Other languages
Japanese (ja)
Other versions
JPH0147735B2 (en
Inventor
Masayoshi Hayashi
Hideaki Matsumoto
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.)
Sysmex Corp
Original Assignee
Sysmex Corp
Tao Medical Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sysmex Corp, Tao Medical Electronics Co Ltd filed Critical Sysmex Corp
Priority to JP55154994A priority Critical patent/JPS5779434A/en
Publication of JPS5779434A publication Critical patent/JPS5779434A/en
Publication of JPH0147735B2 publication Critical patent/JPH0147735B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
    • G01N15/12—Investigating individual particles by measuring electrical or magnetic effects by observing changes in resistance or impedance across apertures when traversed by individual particles, e.g. by using the Coulter principle
    • G01N15/131—Details
    • G01N15/132—Circuits

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

PURPOSE:To measure the expansion rate, expansion time and collapsion time of particles accurately by storing data in a read-write memory and operating the same. CONSTITUTION:Particles are detected by passing a sample 3 of blood or the like through fine pores 3 and are converted to pulse signals in a detecting circuit 11. Said signals are subjected to AD conversion in an AD conversion circuit 12 and are stored in a read-write memory 15. The operating sequence of the circuit 13 is stored in a read-only memory 14, and cumulative value and number of particles are called from the memory 15. Mean particle volume (MPV) is operated and again stored in the memory 15. The average value of the MPVs of the previous time and the time before the previous time and the average value of the MPVs of this time and the next time are compared by repeating this operation, and the expansion rate, expansion time and collapsion time of particles are measured. if the number of particles decreases, variance is produced and therefore when the preset set point is attained, the operation of a display device 16 and a recorder 17 is inhibited by a record removing command circuit 18. In this way, the examination of blood diseases or the like is accomplished accurately.
JP55154994A 1980-11-04 1980-11-04 Particle analyzing device Granted JPS5779434A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55154994A JPS5779434A (en) 1980-11-04 1980-11-04 Particle analyzing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55154994A JPS5779434A (en) 1980-11-04 1980-11-04 Particle analyzing device

Publications (2)

Publication Number Publication Date
JPS5779434A true JPS5779434A (en) 1982-05-18
JPH0147735B2 JPH0147735B2 (en) 1989-10-16

Family

ID=15596382

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55154994A Granted JPS5779434A (en) 1980-11-04 1980-11-04 Particle analyzing device

Country Status (1)

Country Link
JP (1) JPS5779434A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55135731A (en) * 1979-04-09 1980-10-22 Toa Medical Electronics Co Ltd Particle analyzer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55135731A (en) * 1979-04-09 1980-10-22 Toa Medical Electronics Co Ltd Particle analyzer

Also Published As

Publication number Publication date
JPH0147735B2 (en) 1989-10-16

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