US4007639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capillary vessel for blood removal
Assignee: Walter Sarstedt Kunststoff Spritzgusswerk
•
Filing: 1975-08-14
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Granted: 1977-02-15
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Expires: 1995-08-14
Abstract
Abstract A capillary vessel for blood comprises a nozzle of capillary diameter, with a remaining portion widened of size such that a micropipette can be inserted therein, the end of the nozzle being closable with a plug.
Inventors
- 👤 Rainer Haeckel
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; A61B5/150022; A61B5/150206; A61B5/150305; A61B5/150343; A61B5/150351; B; B01; B01L; B01L3/00; B01L3/02; B01L3/021; B01L3/0275; G; G09; G09F; G09F15/00; G09F15/0006
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
49 words
Capillary vessel for extracting very small quantities of blood, wherein the nozzle is in the form of a capillary tube, while the remaining region is widened such that a micropipette can be inserted therein, and at least the end of the nozzle is closable by means of a plug.
Claim 2
Dependent Claim
49 words
Capillary vessel for extracting very small quantities of blood, wherein the nozzle is in the form of a capillary tube, while the remaining region is widened such that a micropipette can be inserted therein, and at least the end of the nozzle is closable by means of a plug.
Claim 3
Dependent Claim
25 words
Capillary vessel as claimed in claim 1, wherein nozzle in the form of a capillary tube has a length of approximately 2 to 5 mm.
Claim 4
Dependent Claim
27 words
Capillary vessel as claimed in claim 1, wherein the region contiguous to the nozzle is of substantially cylindrical construction and has a volume of approximately 300 microliters.
Claim 5
Dependent Claim
20 words
Capillary vessel as claimed in claim 3, wherein the end remote from the nozzle is widened in a trumpet-shaped manner.
Claim 6
Dependent Claim
23 words
Capillary vessel as claimed in claim 1, wherein the plug for closing the nozzle is in the form of a plastic slip-on cap.
Claim 7
Dependent Claim
69 words
Capillary vessel as claimed in claim 1, wherein a substantially cylindrical outer vessel is provided for closing the end remote from the nozzle, which outer vessel is adapted to the length of the capillary vessel and has an access opening at one end, and the access opening is closable by means of a press-in cover which at the same time closes the capillary vessel inserted into the outer vessel.
Claim 8
Dependent Claim
30 words
Capillary vessel as claimed in Claim 6, wherein the press-in cover has a plug-shaped, inwardly projecting central portion which engages into the opening of the capillary vessel which is trumpet-shaped.
Claim 9
Dependent Claim
33 words
Capillary vessel as claimed in claim 6 wherein the outer vessel has at its closed end a substantially cylindrical receiving pocket whose diameter corresponds approximately to the external diameter of the closure cap.
Claim 10
Dependent Claim
35 words
Capillary vessel as claimed in claim 8, wherein the press-in cover is made from the same material as the outer vessel and is integrally connected to the outer vessel by means of a frangible connection.
Claim 11
Dependent Claim
37 words
Capillary vessel as claimed in claim 6, wherein the closed end of the outer vessel has a cap-shaped bulge whose internal cross section is adapted to the external cross section of the nozzle of the capillary vessel.
References Cited (Backward Citations)
US2685800A
Cited
US2797150A
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US3518164A
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US3699348A
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US3676076A
Cited
DE2203174A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-15 | 1980-08-16 | 1981-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-15 | 1984-08-16 | 1985-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-15 | 1988-08-16 | 1989-02-15 | $7700.00 | Window Closed / Lapsed |