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US4476004A
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US
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Apparatus for electrofusion of biological particles
Assignee: D E P Systems Inc
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Filing: 1983-10-26
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Granted: 1984-10-09
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Expires: 2003-10-26
Abstract
Abstract Apparatus and methods of use thereof are provided for fusing neutral polarizable biological bodies and sorting neutral polarizable biological bodies by imposing them to a non-uniform electric field. The dielectrophoretic effect of the non-uniform electric field will either impose variable displacements of the types of cells to facilitate sorting, or will align cells contiguously between a pair of electrodes in preparation for fusion. To fuse the cells the aligned cells are exposed to a direct current impulse.
Inventors
- 👤 Herbert A. Pohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:09
CPC Classifications
B; B01; B01D; B01D57/00; B01D57/02; B03; B03C; B03C5/00; B03C5/02; B03C5/022; B03C5/026; C; C12; C12M; C12M35/00; C12M35/02; C12N; C12N15/00; C12N15/02; C12N15/04; G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44756; G01N27/44773; G01N33/00; G01N33/48
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
108 words
A device for fusing neutral polarizable bodies comprising at least two optically transparent elongated tubular members affixed to an optically transparent plate, said members colinearly aligned and spaced apart from each other; said members accommodating an optically transparent elongated tubular cell, said cell having exterior circumferential dimensions adapted for accommodation by the interior circumferential dimensions of said members, and said cell being of sufficient length such that each end thereof, respectively, extends partially into the openings of said respective members; two parallel electrodes longitudinally extending along the inner surface of said cell, said electrodes being electrically connected for switching to a direct current or alternating current power source.
Claim 2
Independent Claim
108 words
A device for fusing neutral polarizable bodies comprising at least two optically transparent elongated tubular members affixed to an optically transparent plate, said members colinearly aligned and spaced apart from each other; said members accommodating an optically transparent elongated tubular cell, said cell having exterior circumferential dimensions adapted for accommodation by the interior circumferential dimensions of said members, and said cell being of sufficient length such that each end thereof, respectively, extends partially into the openings of said respective members; two parallel electrodes longitudinally extending along the inner surface of said cell, said electrodes being electrically connected for switching to a direct current or alternating current power source.
Claim 3
Dependent Claim
22 words
A device according to claim 1 wherein said members further accommodate means for introducing and withdrawing said particles, respectively, from said cell.
Claim 4
Dependent Claim
28 words
A device according to claim 1 wherein said cell is a rectilinear tube having a rectilinear cavity and said electrodes are disposed along opposite walls within said cavity.
Claim 5
Dependent Claim
22 words
A device according to claim 3 wherein each said members further accommodates an optically transparent spacer contacting an end of said cell.
References Cited (Backward Citations)
US3162592A
Cited
US4326934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |