US4643976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid clinical control, standard, and reagent products
Assignee: Bayer Corp
•
Filing: 1985-06-03
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Granted: 1987-02-17
•
Expires: 2005-06-03
Abstract
Abstract This invention relates to the field of clinical controls useful for calibrating clinical chemistry analyzers and in manual testing methods, as well as clinical standards and reagents. In addition, it relates to methods for producing stabilized liquid clinical control, standards, and reagents.
Inventors
- 👤 Michael K. Hoskins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:22
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/96; G01N2333/00; G01N2333/435; G01N2333/76; G01N2496/00; G01N2496/80; Y; Y10; Y10T; Y10T436/00; Y10T436/10; Y10T436/105831
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
65 words
A stable liquid clinical chemistry control comprising: (a) a storage pouch having a reservoir and connected to the reservoir, at least one heat-sealed filling inlet and at least one heat-sealed dispensing outlet; (b) the pouch material surrounding the reservoir being made of a water and oxygen impermeable material; and (c) the reservoir containing a clinical chemistry control liquid having a protein and an inert gas.
Claim 2
Dependent Claim
65 words
A stable liquid clinical chemistry control comprising: (a) a storage pouch having a reservoir and connected to the reservoir, at least one heat-sealed filling inlet and at least one heat-sealed dispensing outlet; (b) the pouch material surrounding the reservoir being made of a water and oxygen impermeable material; and (c) the reservoir containing a clinical chemistry control liquid having a protein and an inert gas.
Claim 3
Dependent Claim
15 words
The control of claim 1 wherein the filling inlet also serves as the dispensing outlet.
Claim 4
Dependent Claim
53 words
The control of claim 2 wherein the pouch is made of a laminate comprising: (a) an inner layer which is heat sealable, a water barrier, and inert with respect to the control liquid; (b) a middle layer which is an oxygen barrier; and (c) an outer layer which is a puncture-resistant protection barrier.
Claim 5
Dependent Claim
29 words
The control of claim 3 wherein the laminate layers comprise polyethylene film as the inner layer, aluminum foil as the middle layer, and polyester film as the outer layer.
Claim 6
Dependent Claim
18 words
The control of claim 1 wherein the reservoir has at least two chambers separated by a dividing wall.
Claim 7
Dependent Claim
15 words
The control of claim 1 wherein the inert gas comprises argon, krypton, nitrogen or neon.
Claim 8
Dependent Claim
23 words
The control of claim 1 wherein the liquid control comprises a multi-parameter control, an isoenzyme control, a hormone control or a coagulation control.
Claim 9
Dependent Claim
65 words
A stable liquid clinical chemistry standard comprising: (a) a storage pouch having a reservoir and connected to the reservoir, at least one heat-sealed filling inlet and at least one heat-sealed dispensing outlet; (b) the pouch material surrounding the reservoir being made of a water and oxygen impermeable material; and (c) the reservoir containing a clinical chemistry standard liquid having a protein and an inert gas.
Claim 10
Dependent Claim
65 words
A stable liquid clinical chemistry standard comprising: (a) a storage pouch having a reservoir and connected to the reservoir, at least one heat-sealed filling inlet and at least one heat-sealed dispensing outlet; (b) the pouch material surrounding the reservoir being made of a water and oxygen impermeable material; and (c) the reservoir containing a clinical chemistry standard liquid having a protein and an inert gas.
Claim 11
Dependent Claim
15 words
The standard of claim 8 wherein the filling inlet also serves as the dispensing outlet.
Claim 12
Dependent Claim
53 words
The standard of claim 9 wherein the pouch is made of a laminate comprising: (a) an inner layer which is heat sealable, a water barrier, and inert with respect to the standard liquid; (b) a middle layer which is an oxygen barrier; and (c) an outer layer which is a puncture-resistant protection barrier.
Claim 13
Dependent Claim
29 words
The standard of claim 10 wherein the laminate layers comprise polyethylene film as the inner layer, aluminum foil as the middle layer, and polyester film as the outer layer.
Claim 14
Dependent Claim
17 words
The control of claim 8 wherein reservoir has at least two chambers separated by a dividing wall.
Claim 15
Dependent Claim
15 words
The standard of claim 8 wherein the inert gas comprises argon, krypton, nitrogen or neon.
Claim 16
Dependent Claim
65 words
A stable liquid clinical chemistry reagent comprising: (a) a storage pouch having a reservoir and connected to the reservoir, at least one heat-sealed filling inlet and at least one heat-sealed dispensing outlet; (b) the pouch material surrounding the reservoir being made of a water and oxygen impermeable material; and (c) the reservoir containing a clinical chemistry reagent liquid having a protein and an inert gas.
Claim 17
Dependent Claim
65 words
A stable liquid clinical chemistry reagent comprising: (a) a storage pouch having a reservoir and connected to the reservoir, at least one heat-sealed filling inlet and at least one heat-sealed dispensing outlet; (b) the pouch material surrounding the reservoir being made of a water and oxygen impermeable material; and (c) the reservoir containing a clinical chemistry reagent liquid having a protein and an inert gas.
Claim 18
Dependent Claim
15 words
The reagent of claim 14 wherein the filling inlet also serves as the dispensing outlet.
Claim 19
Dependent Claim
53 words
The reagent of claim 15 wherein the pouch is made of a laminate comprising: (a) an inner layer which is heat sealable, a water barrier, and inert with respect to the control liquid, (b) a middle layer which is an oxygen barrier; and (c) an outer layer which is a puncture-resistant protection barrier.
Claim 20
Dependent Claim
29 words
The reagent of claim 16 wherein the laminate layers comprise polyethylene film as the inner layer, aluminum foil as the middle layer, and polyester film as the outer layer.
Claim 21
Dependent Claim
18 words
The control of claim 14 wherein the reservoir has at least two chambers separated by a dividing wall.
Claim 22
Dependent Claim
15 words
The reagent of claim 14 wherein the inert gas comprises argon, krypton, nitrogen and neon.
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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) | 1990-02-16 | 1990-08-18 | 1991-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-16 | 1994-08-18 | 1995-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-16 | 1998-08-18 | 1999-02-17 | $7700.00 | Window Closed / Lapsed |