US6531702B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sample carrier for the IR spectroscopy of sample liquids
Assignee: Roche Diagnostics GmbH
•
Filing: 2000-05-25
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Granted: 2003-03-11
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Expires: 2020-05-25
Abstract
Abstract Sample carrier for IR spectroscopy which has a sample application zone as well as at least one groove-shaped channel into which liquid is drawn from the sample application zone as a result of capillary forces. A method for IR spectroscopy using a sample carrier according to the invention and a system for IR spectroscopy using the sample carrier according to the invention.
Inventors
- 👤 Reinhold Mischler
- 👤 Dirk Boecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:34
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/502; B01L3/5027; B01L3/502746; B01L3/502715; G; G01; G01N; G01N1/00; G01N1/28; G01N1/2813; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/35; G01N21/3577; B01L2300/00; B01L2300/08; B01L2300/089; B01L2400/00; B01L2400/04; B01L2400/0403; B01L2400/0406; B01L3/502707; G01N1/40; G01N1/4022; G01N2001/4027; G01N21/01; G01N21/03
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
32 words
Sample carrier for IR spectroscopy comprising a sample application zone and at least one groove-shaped channel into which liquid is drawn from the sample application zone as a result of capillary forces.
Claim 2
Dependent Claim
32 words
Sample carrier for IR spectroscopy comprising a sample application zone and at least one groove-shaped channel into which liquid is drawn from the sample application zone as a result of capillary forces.
Claim 3
Dependent Claim
22 words
Sample carrier as claimed in claim 1 , in which the at least one groove-shaped channel is arranged in a spiral shape.
Claim 4
Dependent Claim
19 words
Sample carrier as claimed in claim 1 , in which the groove-shaped channel is arranged in a meander shape.
Claim 5
Dependent Claim
23 words
Sample carrier as claimed in claim 1 , wherein the sample carrier has a plurality of groove-shaped channels arranged next to one another.
Claim 6
Dependent Claim
22 words
Sample carrier as claimed in claim 1 , in which the at least one groove-shaped channel has a V-shaped profile in cross-section.
Claim 7
Dependent Claim
22 words
Sample carrier as claimed in claim 1 , in which the at least one groove-shaped channel has a sinus-shaped profile in cross-section.
Claim 8
Dependent Claim
21 words
Sample carrier as claimed in claim 1 , in which the width of the groove-shaped channel is less than 100 μm.
Claim 9
Dependent Claim
25 words
Sample carrier as claimed in claim 1 , in which the ratio of the width to depth of the groove-shaped channel is 0.5 to 2.0.
Claim 10
Dependent Claim
22 words
Sample carrier as claimed in claim 1 , in which the half width of the groove-shaped channel is 0.1 to 1.0 mm.
Claim 11
Dependent Claim
21 words
Sample carrier as claimed in claim 1 , in which the length of the groove-shaped channel is more than 5 cm.
Claim 12
Dependent Claim
33 words
Sample carrier as claimed in claim 1 , wherein (i) the groove-shaped channel defines an analytical region and (ii) the analytical region has an area that is less than 3 cm 2 .
Claim 13
Dependent Claim
33 words
Sample carrier as claimed in claim 1 , wherein (i) the groove-shaped channel defines an analytical region and (ii) the groove-shaped channel defining the analytical region has a length greater than 1 cm.
Claim 14
Dependent Claim
30 words
Sample carrier as claimed in claim 1 , in which at least the region in which the at least one groove-shaped channel is located is coated with aluminum or gold.
Claim 15
Dependent Claim
18 words
Sample carrier as claimed in claim 1 , which is manufactured from a plastic by a moulding process.
Claim 16
Dependent Claim
106 words
System for carrying out IR spectroscopy of a sample liquid with a sample carrier comprising: a sample carrier which has a sample application zone and at least one groove-shaped channel into which liquid is drawn from the sample application zone as a result of capillary forces, a source of IR radiation to irradiate the sample carrier in the region in which the groove-shaped channel is located, a detector to detect the radiation that is reflected from the sample carrier or to detect radiation transmitted through the sample carrier, an evaluation unit to evaluate the detected radiation for the qualitative and/or quantitative analysis of the sample liquid.
Claim 17
Dependent Claim
106 words
System for carrying out IR spectroscopy of a sample liquid with a sample carrier comprising: a sample carrier which has a sample application zone and at least one groove-shaped channel into which liquid is drawn from the sample application zone as a result of capillary forces, a source of IR radiation to irradiate the sample carrier in the region in which the groove-shaped channel is located, a detector to detect the radiation that is reflected from the sample carrier or to detect radiation transmitted through the sample carrier, an evaluation unit to evaluate the detected radiation for the qualitative and/or quantitative analysis of the sample liquid.
Claim 18
Dependent Claim
112 words
Method for the IR spectroscopy of a sample liquid comprising the steps providing a sample carrier with an application zone for applying a liquid sample and with at least one groove-shaped channel that is connected to the application zone into which liquid is drawn from the sample application zone as a result of capillary forces, applying sample liquid to the application zone, irradiating the region of the sample carrier in which the at least one groove-shaped channel is located with IR radiation, detecting radiation that is reflected from the sample carrier or transmitted through the sample carrier, evaluation of the detected radiation for the qualitative and/or quantitative analysis of the sample liquid.
Claim 19
Dependent Claim
112 words
Method for the IR spectroscopy of a sample liquid comprising the steps providing a sample carrier with an application zone for applying a liquid sample and with at least one groove-shaped channel that is connected to the application zone into which liquid is drawn from the sample application zone as a result of capillary forces, applying sample liquid to the application zone, irradiating the region of the sample carrier in which the at least one groove-shaped channel is located with IR radiation, detecting radiation that is reflected from the sample carrier or transmitted through the sample carrier, evaluation of the detected radiation for the qualitative and/or quantitative analysis of the sample liquid.
Claim 20
Dependent Claim
23 words
Method as claimed in claim 16 , in which the sample liquid is located in the groove-shaped channel is dried before the evaluation.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-03-10 | 2006-09-09 | 2007-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-03-10 | 2010-09-09 | 2011-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-03-10 | 2014-09-09 | 2015-03-11 | $7700.00 | Window Closed / Lapsed |