US4746614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extraction device
Assignee: Clinical Diagnostic Systems Inc
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Filing: 1987-09-18
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Granted: 1988-05-24
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Expires: 2007-09-18
Abstract
Abstract There is described a device used with a swab to extract biological material collected on the absorbent end of the swab. The device comprises a container having an internal surface defining a major cavity for confining an extracting liquid medium, and means in said container defining a notch extending into a portion of said internal surface, said notch being configured to receive a swab-like collector and to hold such a collector in said major cavity, said notch having one end that is deeper within said cavity than the rest of said notch, said end being configured to hold the absorbent end of such a collector, and centering means in said container for centering a pipette for aspiration of such extracting medium, said centering means being disposed generally about a line that intersects said notch at a point generally adjacent said one end.
Inventors
- 👤 Mark J. Devaney, Jr.
- 👤 Thomas W. Glanville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:49
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/0096
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
163 words
A device for extracting biological materials from a swab-like collector using a pipette, the device comprising: a container having an internal surface defining a major cavity for confining an extracting liquid medium, and means in said container defining a notch extending into a portion of said internal surface, said notch being configured to receive a swab-like collector and to hold such a collector in said major cavity, said notch having one end that is deeper within said cavity than the rest of said notch, said end being configured to hold the absorbent end of such a collector, and centering means in said container for centering a pipette for aspiration of such extracting medium, said centering means being disposed generally about a line that intersects said notch at a point generally adjacent said one end, whereby the maximum amount of extracting medium and biological material is aspiratable out of said major cavity and such a collector, respectively, by a pipette positioned on said line.
Claim 2
Independent Claim
163 words
A device for extracting biological materials from a swab-like collector using a pipette, the device comprising: a container having an internal surface defining a major cavity for confining an extracting liquid medium, and means in said container defining a notch extending into a portion of said internal surface, said notch being configured to receive a swab-like collector and to hold such a collector in said major cavity, said notch having one end that is deeper within said cavity than the rest of said notch, said end being configured to hold the absorbent end of such a collector, and centering means in said container for centering a pipette for aspiration of such extracting medium, said centering means being disposed generally about a line that intersects said notch at a point generally adjacent said one end, whereby the maximum amount of extracting medium and biological material is aspiratable out of said major cavity and such a collector, respectively, by a pipette positioned on said line.
Claim 3
Dependent Claim
35 words
A device as defined in claim 1, wherein said major cavity has a top limiting surface and said notch extends at an angle to said limiting surface that is between about 2° and about 60°.
Claim 4
Dependent Claim
18 words
A device as defined in claim 2, wherein said pipette-centering line extends generally perpendicular to said limiting surface.
Claim 5
Dependent Claim
26 words
A device as defined in claim 1, wherein said major cavity has a top limiting surface and said notch extends generally perpendicular to said limiting surface.
Claim 6
Dependent Claim
27 words
A device as defined in claim 4, wherein said pipette-centering line extends at an angle to said limiting surface that is between about 2° and about 60°.
Claim 7
Dependent Claim
25 words
A device as defined in claim 1, wherein said container further includes means in said notch for retaining a swab-like collector temporarily within the notch.
Claim 8
Dependent Claim
24 words
A device as defined in claim 1, wherein the volumes of said major cavity and said notch together do not exceed about 1.0 ml.
Claim 9
Dependent Claim
25 words
A device as defined in claim 1, and further including means in said container for damping splashing when a swab is reciprocated in said notch.
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) | 1991-05-24 | 1991-11-23 | 1992-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-24 | 1995-11-23 | 1996-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-24 | 1999-11-23 | 2000-05-24 | $7700.00 | Window Closed / Lapsed |