US4045655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic cyto-screening device
Assignee: Hitachi Ltd
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Filing: 1976-02-05
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Granted: 1977-08-30
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Expires: 1996-02-05
Abstract
Abstract An automatic cyto-screening device calculates, from image signals obtained by scanning stained cells, the nuclear area of the cells and the nuclear area/cytoplasmic area ratio, and determines, from the calculated areas, which belong to a normal region, which belong to an abnormal region and an uncertain region in which normal and abnormal cells are present in the mixed state; these three regions are prescribed in advance, depending on the nuclear and cytoplasmic areas. The device also determines, according to the grey histogram of the nuclear density, whether cells which have been determined to belong to the uncertain region are normal or abnormal.
Inventors
- 👤 Ryuichi Suzuki
- 👤 Takaji Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:45
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/10; G01N15/14; G01N15/1468; G06; G06T; G06T7/00; G06T7/60
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
141 words
An automatic cyto-screening device comprising magnifying means for optically magnifying a sample including cells; scanning means for scanning a magnified image of the sample; a cell detector for detecting a cell in the magnified image from a video signal obtained from said scanning means; and diagnosis logic means for obtaining a morphologic feature of the cell as a diagnosis parameter from said image signal based on an output from cell detector, characterized in that said diagnosis logic means further comprises an area calculating means for calculating the nuclear area, cytoplasmic area and area of the nucleus with a predetermined density; means for calculating the nuclear area/cytoplasmic area ratio; and first classification means for determining to which region of a plurality of prescribed regions including normal abnormal, and uncertain prescribed regions the cell belongs based on said nuclear area and said ratio.
Claim 2
Dependent Claim
141 words
An automatic cyto-screening device comprising magnifying means for optically magnifying a sample including cells; scanning means for scanning a magnified image of the sample; a cell detector for detecting a cell in the magnified image from a video signal obtained from said scanning means; and diagnosis logic means for obtaining a morphologic feature of the cell as a diagnosis parameter from said image signal based on an output from cell detector, characterized in that said diagnosis logic means further comprises an area calculating means for calculating the nuclear area, cytoplasmic area and area of the nucleus with a predetermined density; means for calculating the nuclear area/cytoplasmic area ratio; and first classification means for determining to which region of a plurality of prescribed regions including normal abnormal, and uncertain prescribed regions the cell belongs based on said nuclear area and said ratio.
Claim 3
Dependent Claim
67 words
An automatic cyto-scanning device as set forth in claim 1, wherein said diagnosis logic means further comprises second classification means for determining to which of a plurality of prescribed divided regions of said uncertain region the cell, which has been determined by said first classification means to belong to the uncertain region, belongs based on said nuclear area and area of the nucleus with said predetermined density.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |