US3848581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for taking multiple samples of biological liquid
Assignee: Individual
•
Filing: 1972-10-10
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Granted: 1974-11-19
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Expires: 1992-10-10
Abstract
Abstract Apparatus for taking samples of biological liquid and in particular human blood comprises an elongate body having a longitudinally extending central passageway connected at one end to a hypodermic needle. Branch channels extend respectively from the central passageway to individual test tubes which are supported by their upper ends along the lower side of the body. The test tubes are sealed so as to remain in sterile condition and means is provided for selectively venting air from the test tubes and controlling flow of liquid from the central passageway to the individual test tubes so that they can be filled successively or as desired. The test tubes are removable from the body for carrying out the several tests or analyses for which the samples are intended.
Inventors
- 👤 P Cinqualbre
- 👤 L Cinqualbre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:44
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150015; A61B5/15003; A61B5/150206; A61B5/150213; A61B5/150221; A61B5/150236; A61B5/150244; A61B5/150251; A61B5/150374; A61B5/150381; A61B5/150389; A61B5/150503; A61B5/150519; A61B5/150755; A61B5/153; G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/14; A61B5/150259
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
203 words
Apparatus for taking samples of a biological liquid and particularly human blood to obtain a plurality of separate samples for different analyses, comprising an elongated body having a longitudinally extending central passageway, a hypodermic needle connected with said central passageway at one end of said body, a plurality of test tubes, means for removably mounting said test tubes by their upper ends in depending position under said body with the upper ends of the test tubes closed by said body, said mounting means comprising means for slidably gripping the upper end of each test tube for movement between an upper position and a lower position and venting means comprising a vent passage which is closed by the test tube when in its upper position and opened when the test tube is in its lower position, and branch passageways leading from said central passagewy to said test tubes respectively, whereby the individual test tubes can be filled successively to the desired extent with samples of liquid supplied through said needle, central passageway and the respective branch passageways by selectively manually lowering individual test tubes to corresponding lower positions on said mounting means to allow displacement of air in the lowered test tubes by fluid.
Claim 2
Dependent Claim
203 words
Apparatus for taking samples of a biological liquid and particularly human blood to obtain a plurality of separate samples for different analyses, comprising an elongated body having a longitudinally extending central passageway, a hypodermic needle connected with said central passageway at one end of said body, a plurality of test tubes, means for removably mounting said test tubes by their upper ends in depending position under said body with the upper ends of the test tubes closed by said body, said mounting means comprising means for slidably gripping the upper end of each test tube for movement between an upper position and a lower position and venting means comprising a vent passage which is closed by the test tube when in its upper position and opened when the test tube is in its lower position, and branch passageways leading from said central passagewy to said test tubes respectively, whereby the individual test tubes can be filled successively to the desired extent with samples of liquid supplied through said needle, central passageway and the respective branch passageways by selectively manually lowering individual test tubes to corresponding lower positions on said mounting means to allow displacement of air in the lowered test tubes by fluid.
Claim 3
Dependent Claim
34 words
Apparatus according to claim 1, in which said branch passageways are of such small cross section that flow of liquid therethrough prevents the escape of air from the test tubes through said branch passageways.
Claim 4
Dependent Claim
34 words
Apparatus according to claim 1, in which said mounting means comprises a plurality of recesses in the lower side of said body, each recess receiving the upper end of one of said test tubes.
Claim 5
Dependent Claim
206 words
Apparatus for taking samples of a biological liquid and particularly human blood to obtain a plurality of separate samples for different analyses, comprising an elongated body having a longitudinally extending central passageway, a hypodermic needle connected with said central passageway at one end of said body, a plurality of test tubes, means for removably mounting said test tubes by their upper ends in depending position under said body with the upper ends of the test tubes closed by said body, said mounting means comprising means for slidably gripping the upper end of each test tube for movement between an upper position and a lower position and venting means comprising a vent passage which is closed by the test tube when in Its upper position and opened when the test tube is in its lower position, branch passageways leading from said central passageway to said test tubes respectively and a plunger longitudinally slidable in said central passageway to selected positions to admit a flow of liquid from the central passageway through the branch passageways to the respective test tubes, whereby the individual test tubes can be filled successively to the desired extent with samples of liquid supplied through said needle, central passageway and the respective branch passageways.
Claim 6
Dependent Claim
206 words
Apparatus for taking samples of a biological liquid and particularly human blood to obtain a plurality of separate samples for different analyses, comprising an elongated body having a longitudinally extending central passageway, a hypodermic needle connected with said central passageway at one end of said body, a plurality of test tubes, means for removably mounting said test tubes by their upper ends in depending position under said body with the upper ends of the test tubes closed by said body, said mounting means comprising means for slidably gripping the upper end of each test tube for movement between an upper position and a lower position and venting means comprising a vent passage which is closed by the test tube when in Its upper position and opened when the test tube is in its lower position, branch passageways leading from said central passageway to said test tubes respectively and a plunger longitudinally slidable in said central passageway to selected positions to admit a flow of liquid from the central passageway through the branch passageways to the respective test tubes, whereby the individual test tubes can be filled successively to the desired extent with samples of liquid supplied through said needle, central passageway and the respective branch passageways.
Claim 7
Dependent Claim
34 words
Apparatus according to claim 4, in which said branch passageways are of such small cross section that flow of liquid therethrough prevents the escape of air from the test tubes through said branch passageways.
Claim 8
Dependent Claim
40 words
Apparatus according to claim 4, in which said mounting means comprises a plurality of tubular projections projecting down from the lower side of said body, each of said projections fitting into the upper end of one of said test tubes.
Claim 9
Dependent Claim
36 words
Apparatus according to claim 6, in which a circular groove in said body around the upper end of each of said projections receives the upper edge of each of said test tubes to provide a seal.
Claim 10
Dependent Claim
45 words
Apparatus according to claim 6, in which each of said projections has a circular external rib near its lower end and an axially extending groove in its outer face extending from the lower end of the projection to a point part way up the projection.
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) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |