EP0504772A2
Expired / Lapsed
EP
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Analytical apparatus
Assignee: Paradigm Biotechnolgies Partnership
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Filing: 1992-03-14
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Granted: —
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Expires: 2012-03-14
Abstract
Abstract A microprocessor-based, control unit for analysis of a fluid sample, and for especially biomedical analysis of a body fluid, is provided. Also provided is the combination of a roller assembly (18,20) and a compartmentalized pouch (25) containing certain chemicals, with the rollers (18,20) functioning to break rupturable seals of compartments and to push fluids from one compartment to another. Apparatus in accordance with the present invention, is useful, for example, in monitoring urea concentration during dialysis.
Inventors
- 👤 Brenda L. Skerratt
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 18:52
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/505; G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; G01N33/528; B01L2400/00; B01L2400/04; B01L2400/0475; B01L2400/0481; G01N1/00; G01N1/02; G01N1/10; G01N1/20; G01N1/2035
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
126 words
Microprocessor-based analytical apparatus comprising a control unit comprising a microprocessor; microprocessor-controlled motor means; a motor means-controlled, pressure-exerting assembly for cooperating with a compartmentalized pouch having an inlet conduit for receiving a fluid sample to be analyzed; and analysis means comprising a) a flow through, analysis cell having (1) inlet conduit means in fluid communication with outflow means of a compressible chamber of said compartmentalized pouch for receiving an analyzable liquid sample delivered from said compressible chamber by cooperation of said pressure-exerting assembly with said compressible chamber, (2) and fluid outlet means, said flow through, analysis cell having a chamber in the form of a pathway, and b) analytical sensor means situated adjacent said analysis cell chamber, wherein said microprocessor operatively communicates with said analytical sensor means.
Claim 2
Dependent Claim
15 words
The analytical apparatus of claim 1, wherein said analytical sensor means is photometric analysis means.
Claim 3
Dependent Claim
261 words
An analytical process comprising providing a device having compressible compartments, admitting a selected volume of a fluid sample to be analyzed for a target chemical species, into a first pressure-compressible compartment of said device; thereafter, under microprocessor control, applying pressure to a second pressure-compressible compartment containing a chemical for producing a reaction product upon interaction with said target chemical species, and opening a temporary seal that forms a first portion of a wall defining said first compartment so as to provide for fluid communication with said second pressure-compressible compartment and pressure force a selected quantity of said chemical into said first compartment, which contains said target chemical species, to provide for conversion of said target chemical species into said reaction product; thereafter, under microprocessor control, applying pressure to a third pressure-compressible compartment containing a reagent for mixing with said reaction product to produce an analyzable fluid, and opening a temporary seal that forms a second portion of a wall defining said first compartment so as to provide for fluid communication with said third pressure-compressible compartment and pressure force a suitable amount of said reagent into said first compartment, which contains reaction product, to provide for reaction of said reaction product with said reagent to form said analyzable fluid; thereafter, under microprocessor control, applying pressure to said first compartment and opening a temporary seal that forms a third portion of a wall defining said first compartment and pressure forcing said analyzable fluid from said device into an analysis cell; and thereafter, under microprocessor control, analyzing said analyzable fluid in said analysis cell.
Claim 4
Dependent Claim
31 words
The analytical process of claim 3, further comprising obtaining said fluid sample as a filtrate from a bulk fluid, prior to admitting said fluid sample into said device having compressible compartments.
References Cited (Backward Citations)
No citation records indexed.
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