EP0780678A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Analyzer for analyzing urine material components
Assignee: Sysmex Corp
•
Filing: 1996-12-18
•
Granted: —
•
Expires: 2016-12-18
Abstract
Abstract An analyzer for analyzing urine material components includes: a sheath flow cell for forming a sample stream containing the urine material components; a light source for illuminating the sample stream; a section for detecting optical information from the illuminated material component particles; and an analyzing section for analyzing the material components; the analyzing section including a parameter extracting section for extracting parameters from the detected optical information, a section for generating a distribution diagram for the material components on the basis of the extracted parameters, a section for inputting an expectative domain of a particular material component in the distribution diagram, and a warning section for giving a warning when a cluster of data points of the particular material component deviates from the expectative domain by more than a predetermined degree.
Inventors
- 👤 Hiroyuki Nakamoto
- 👤 Masayuki Katayama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 22:48
CPC Classifications
G; G01; G01N; G01N21/00; G01N15/00; G01N15/10; G01N15/14; G01N15/1468; G01N15/147; G01N1/00; G01N1/28; G01N1/30; G01N1/31; G01N2015/1019; G01N2015/1477
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
177 words
An analyzer for analyzing urine material components, comprising: a sheath flow cell for forming a sample stream by surrounding a sample liquid containing particles of the urine material components with a sheath fluid; a light source for illuminating the sample stream; a photodetecter section for detecting optical information from the illuminated material component particles; and an analyzing section for analyzing the material components on the basis of the detected optical information; wherein the analyzing section includes: a parameter extracting section for extracting a plurality of parameters from the detected optical information; a distribution diagram generating section for generating a distribution diagram for the material components on the basis of the extracted parameters; an input section for inputting a discrimination condition for discriminating a predetermined material component from the other material components; and a warning section for warning that data points of the other material components are possibly present in a domain of the predetermined material component in the distribution diagram when data points of the material components in the distribution diagram do not satisfy the discrimination condition.
Claim 2
Dependent Claim
37 words
An analyzer as set forth in claim 1, further comprising a pretreatment section for staining the particles of the urine material components with a fluorescent dye before the sample liquid is supplied into the sheath flow cell.
Claim 3
Dependent Claim
24 words
An analyzer as set forth in claim 2, wherein the parameters to be extracted include a fluorescent light intensity and a scatter light intensity.
Claim 4
Dependent Claim
15 words
An analyzer as set froth in claim 1, wherein the predetermined material component is erythrocyte.
Claim 5
Dependent Claim
17 words
An analyzer as set forth in claim 4, wherein the other material components include calcium oxalate crystal.
Claim 6
Dependent Claim
57 words
An analyzer as set forth in claim 1, wherein the discrimination condition to be inputted from the inputting section include an expectative domain of the predetermined material component in the distribution diagram, and wherein the warning section gives a warning when some of the data points of the predetermined material component fall out of the expectative domain.
Claim 7
Dependent Claim
37 words
An analyzer as set forth in claim 6, further comprising a pretreatment section for staining the particles of the urine material components with a fluorescent dye before the sample liquid is supplied into the sheath flow cell.
Claim 8
Dependent Claim
24 words
An analyzer as set forth in claim 7, wherein the parameters to be extracted include a fluorescent light intensity and a scatter light intensity.
Claim 9
Dependent Claim
15 words
An analyzer as set froth in claim 7, wherein the predetermined material component is erythrocyte.
Claim 10
Dependent Claim
17 words
An analyzer as set forth in claim 9, wherein the other material components include calcium oxalate crystal.
Claim 11
Dependent Claim
65 words
An analyzer as set forth in claim 1, wherein the discrimination conditions to be inputted from the inputting section include an upper limit of one of the parameters used for the generation of the distribution diagram, and wherein the warning section gives a warning when some of the data points of the predetermined material component are located above the upper limit in the distribution diagram.
Claim 12
Dependent Claim
17 words
An analyzer as set forth in claim 11, wherein the one parameter is a scatter light intensity.
Claim 13
Dependent Claim
15 words
An analyzer as set froth in claim 11, wherein the predetermined material component is erythrocyte.
Claim 14
Dependent Claim
17 words
An analyzer as set forth in claim 11, wherein the other material components include calcium oxalate crystal.
Claim 15
Dependent Claim
103 words
An analyze as set forth in claim 1, wherein the distribution diagram generating section is adapted to generate a histogram for each of the material components on the basis of one of the parameters, wherein the discrimination conditions to be inputted from the inputting section include the ratio of a distribution range to a maximum frequency in the histogram, and wherein the warning section gives a warning when the ratio of a distribution range to a maximum frequency in a histogram for any material component other than the predetermined material component is greater than that in a histogram for the predetermined material component.
Claim 16
Dependent Claim
37 words
An analyzer as set forth in claim 15, further comprising a pretreatment section for staining the particles of the urine material components with a fluorescent dye before the sample liquid is supplied into the sheath flow cell.
Claim 17
Dependent Claim
17 words
An analyzer as set forth in claim 16, wherein the one parameter is a fluorescent light intensity.
Claim 18
Dependent Claim
15 words
An analyzer as set froth in claim 15, wherein the predetermined material component is erythrocyte.
Claim 19
Dependent Claim
16 words
An analyzer as set forth in claim 18, wherein the other material components include DHA crystal.
Claim 20
Independent Claim
17 words
A method of analyzing erythrocytes using the analyzer defined in any one of claims 1 through 19.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.