Patent US5764981A successfully refreshed from Google Patents.
Patent EP0253519A2 successfully refreshed from Google Patents.
EP0253519A2
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EP
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Sample handling system
Assignee: Beckman Coulter Inc
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Filing: 1987-06-19
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Granted: —
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Expires: 2007-06-19
Abstract
Abstract A sample handling system including a sample injection cell (28) having an open chamber (48-56) in turn comprising an upper portion (48-54) for washing a sample handling probe (22) and a lower portion (56) adapted to receive the probe (22) for injection of a sample and fluid mixture into a flow analysis device. The cell enables the probe to be withdrawn from the cell and moved to other analysis modules for injection of sample therein. The cell includes a seal (60) between the upper portion and lower portion of the chamber and the probe includes a mating seal (62) near the tip of the probe. A plurality of conduits (76-81) are formed into the cell for flowing sample and a fluid such as diluent through the cell to a flow analysis device and for filling the cell for washing the probe tip.
Inventors
- 👤 Edmund E. Buzza
- 👤 Delbert D. Jackson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 07:28
CPC Classifications
G; G01; G01N; G01N35/00; G01N35/10; G01N35/1095; G01N35/1097; G01N35/1004
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
56 words
A sample injection cell (28) for use in a sample handling system including a fluid delivery probe (22), the cell comprising: a body (46,47) having an open chamber (48-56) adapted to receive the probe; sealing means (60) for sealing the probe tip within the chamber; and a plurality of conduits (76-81) in communication with the chamber.
Claim 2
Dependent Claim
56 words
A sample injection cell (28) for use in a sample handling system including a fluid delivery probe (22), the cell comprising: a body (46,47) having an open chamber (48-56) adapted to receive the probe; sealing means (60) for sealing the probe tip within the chamber; and a plurality of conduits (76-81) in communication with the chamber.
Claim 3
Dependent Claim
35 words
A sample injection cell as in claim 1, wherein the open chamber includes an upper portion (48-54) and a lower portion (56) and the sealing means (60) is disposed between the upper and lower portions.
Claim 4
Dependent Claim
31 words
A sample injection cell as in claim 2, wherein the sealing means is an annular seal (60) having an inside diameter greater than the outside diameter of a predetermined probe (22).
Claim 5
Dependent Claim
38 words
A sample injection cell as in claim 2 or claim 3, in which said plurality of conduits (76-81) communicate with the chamber lower portion (56), and including a further conduit (82) communicating with the chamber upper portion (48-54).
Claim 6
Dependent Claim
28 words
A sample handling system, comprising: a probe (22) having a tip and adapted to carry fluid; and a sample injection cell (28) in accordance with any preceding claim.
Claim 7
Dependent Claim
30 words
A system as in claim 1, wherein the upper portion of the chamber includes tapered walls (50,52) for guiding the probe tip into the lower portion (56) of the chamber.
Claim 8
Dependent Claim
38 words
A sample injection cell as in claim 5 or claim 6, wherein the sealing means includes an annular seal (62) proximate the tip of the probe (22), such seal including a tapered surface (66) oriented toward the tip.
Claim 9
Dependent Claim
59 words
A system as in claim 7 when dependent on claim 3, wherein the probe includes control means for inserting the probe tip into the upper portion (48-54) of the chamber and for inserting the probe tip into the lower portion (56) of the chamber to press the probe and chamber seals (60,62) together and to form a seal therebetween.
Claim 10
Dependent Claim
49 words
A system as in claim 8 and claim 4 further including pump means (94) for pumping wash fluid into the chamber through one (84) of the lower conduits, means (98,116,122) for closing the remainder of the lower conduits, and means for drawing wash fluid from the upper conduit (82).
Claim 11
Dependent Claim
57 words
A system as in claim 9 further including a plurality of sample analyzing means (30-36) each adapted to accept and analyze fluid deposited in such sample analyzing means by the probe (22) and flow analyzing mean (103) in fluid communication with one (86) of the lower conduits for analyzing fluids injected into the cell from the probe.
Claim 12
Dependent Claim
35 words
A system as in claim 10 further including fluid pumping means (44) for pumping fluid through one of the lower conduits (88) when the probe tip is sealed within the lower portion of the chamber.
References Cited (Backward Citations)
No citation records indexed.
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