US4592893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analysis test strip
Assignee: Roche Diagnostics GmbH
•
Filing: 1984-05-08
•
Granted: 1986-06-03
•
Expires: 2004-05-08
Abstract
Abstract An analysis test strip and a process for the production of analysis test strips with a longitudinal carrier upon which is fixed at least one test field. The test field material is produced batchwise in an amount sufficient for a plurality of test strips, and thereafter, in a chronologically separate working step, is continuously fixed in the form of at least one band onto a parallel-running substantially wider band of test strip carrier material. The band as a whole is cut up transversely to its longitudinal direction into a plurality of test strips. Prior to the cutting up, a bar code is applied to the carrier band running parallel to the edges thereof of such high information density that it is suitable as a store of batch-specific information necessary for the quantitative evaluation of the reaction which has previously been obtained by investigation of the test field material of one batch.
Inventors
- 👤 Werner Poppe
- 👤 Rainer van Rijekevorsel
- 👤 Uwe Ruppender
- 👤 Heinz Macho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:40
CPC Classifications
G; G01; G01N; G01N35/00; G01N35/00029; G01N33/00; G01N33/48; G01N33/50; G01N33/52; G01N33/521; G01N2035/00099; G01N2035/00108; G01N2035/00118; G01N2035/00168; G01N35/00584; G01N35/00722; G01N35/00732; G01N2035/00742; G01N2035/00752
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
104 words
A test strip for the analysis of components of a liquid, comprising: an elongated carrier having a longitudinally axis and a handling region provided for facilitating handling of the strip; a test field region on one surface of the carrier, said test field region including at least one test field including test field material reactive with a component to be determined and obtained from a batch of test field material; and a machine-readable high information density bar code disposed on the carrier substantially transversely to the longitudinal axis thereof and including batch-specific information for the quantitative evaluation of the reaction of the test field.
Claim 2
Dependent Claim
104 words
A test strip for the analysis of components of a liquid, comprising: an elongated carrier having a longitudinally axis and a handling region provided for facilitating handling of the strip; a test field region on one surface of the carrier, said test field region including at least one test field including test field material reactive with a component to be determined and obtained from a batch of test field material; and a machine-readable high information density bar code disposed on the carrier substantially transversely to the longitudinal axis thereof and including batch-specific information for the quantitative evaluation of the reaction of the test field.
Claim 3
Dependent Claim
37 words
The test strip according to claim 1, wherein the bar code is readable in infra-red light and wherein the bars comprise material which reflects infra-red light, and the carrier comprises material which relfects infra-red light ralatively weakly.
Claim 4
Dependent Claim
25 words
The test strip according to claim 1, wherein the bars of the bar code contain metallic components and the carrier is made of synthetic resin.
Claim 5
Dependent Claim
59 words
The test strip according to claim 11, wherein the test field region is located near one end of the elongated carrier and the handling region is located near the other end of the elongated carrier and the bar code is disposed on the other surface of the test strip and between the test field region and the handling region.
Claim 6
Dependent Claim
38 words
The test strip according to claim 1, wherein the bar code includes at least 30 bits of information, includes essentially two widths of code bars and the width of the smaller kind is not more than 400 μm.
Claim 7
Dependent Claim
38 words
The test strip according to claim 11, wherein the bar code includes at least 50 bits of information, includes essentially two widths of code bars and the width of the smaller kind is not more than 200 μm.
Claim 8
Dependent Claim
19 words
The test strip according to claim 1, wherein the bar code comprises a band material bonded to the carrier.
Claim 9
Dependent Claim
27 words
The test strip according to claim 1 or 7, wherein the bars of the bar code consist essentially of a film material bonded directly to the carrier.
Claim 10
Dependent Claim
30 words
The test strip according to claim 8, wherein the film material is a dye layer from dye layer carrier and adhered to the test strip carrier material by heat sealing.
Claim 11
Dependent Claim
170 words
An analysis test strip having an elongated carrier with at least one test field fixed thereon, produced by: providing a band of carrier material sufficient for a plurality of test strips; batchwise producing test field material, capabale of reacting with a component to be determined, in an amount sufficient for the plurality of test strips and obtaining batch specific information for the quantitative evaluation of the reaction of the test field material of the batch; in a chronologically separate step, fixing the test field material in the form of at least one narrow band onto a parallel-running substantially wider band of carrier material having a longitudinal axis and two longitudinal edges; cutting the carrier band, with the test field material band fixed thereon, transversely to the longitudinal axis thereof and into a plurality of test strips; and, prior to the cutting step and after obtaining said batch specific information, applying a high information density bar code running parallel to the longitudinal edges of the carrier band including said batch-specific information.
Claim 12
Dependent Claim
170 words
An analysis test strip having an elongated carrier with at least one test field fixed thereon, produced by: providing a band of carrier material sufficient for a plurality of test strips; batchwise producing test field material, capabale of reacting with a component to be determined, in an amount sufficient for the plurality of test strips and obtaining batch specific information for the quantitative evaluation of the reaction of the test field material of the batch; in a chronologically separate step, fixing the test field material in the form of at least one narrow band onto a parallel-running substantially wider band of carrier material having a longitudinal axis and two longitudinal edges; cutting the carrier band, with the test field material band fixed thereon, transversely to the longitudinal axis thereof and into a plurality of test strips; and, prior to the cutting step and after obtaining said batch specific information, applying a high information density bar code running parallel to the longitudinal edges of the carrier band including said batch-specific information.
References Cited (Backward Citations)
US3127281A
Cited
US3648604A
Cited
US3712210A
Cited
US3920957A
Cited
US3901148A
Cited
US3933094A
Cited
US3907503A
Cited
US3926110A
Cited
US4056361A
Cited
US4087332A
Cited
US4121574A
Cited
US4260392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-02 | 1989-12-02 | 1990-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-02 | 1993-12-02 | 1994-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-02 | 1997-12-02 | 1998-06-03 | $7700.00 | Window Closed / Lapsed |