US5800781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood sampling device
Assignee: International Technidyne Corp
•
Filing: 1996-09-25
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Granted: 1998-09-01
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Expires: 2016-09-25
Abstract
Abstract A portable device for performing coagulation tests on a patient's blood. Blood is first drawn from a patient using a lancet. The blood is then supplied to a disposable cuvette placed within the testing device. The blood is drawn into multiple conduits within the cuvette. Each of the conduits contains a dried or lyophilized activation reagent that is rehydrated by the blood. The blood in each of the conduits is then reciprocally moved across a restricted region until a predetermined degree of coagulation occurs. Since the coagulation time is being monitored in multiple conduits, a representation coagulation time for a given sample can be determined. In at least one of the conduits a normalizing control agent is present. The normalizing control agent counteracts any effects of anticoagulants present in the blood sample, thereby allowing the blood sample to have generally normal coagulation characteristics. The normalized blood is tested simultaneously with the untreated blood to provide a reference value against which the functionality of the test system and the quality of the sample can be judged.
Inventors
- 👤 Michael Gavin
- 👤 Catherine M. Cimini
- 👤 Ming Huang
- 👤 Anthony Kuklo, Jr.
- 👤 James A. Mawhirt
- 👤 Eduardo Marcelino
- 👤 Albert Simone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:55
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/483; G01N33/487; G01N33/49; G01N33/4905; G01N33/50; G01N33/86; Y; Y10; Y10T; Y10T436/00; Y10T436/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
259 words
A blood sampling device for providing a blood sample in combination with a cuvette for receiving and performing a blood coagulation test on said blood sample, the combination therewith comprising: a lancet for creating an incision in a patient's skin that causes the patient to bleed; a receptacle assembly coupled to said lancet, said receptacle assembly having a receptacle member for receiving a predetermined volume of blood from the patient therein and a receptacle attachment member for coupling said receptacle assembly to said lancet, said receptacle member having a conical-shaped reservoir member extending up from an unitary with a surface of said receptacle attachment member, said conical-shaped reservoir including a first opening through which blood can enter said receptacle member and a second opening through which said blood sample can be drawn from said receptacle member, a cuvette comprising a transparent member having a plurality of conduits for receiving and performing said blood coagulation test on said blood sample and, a channel common to said plurality on conduits through which said predetermined volume of the blood sample can be drawn from said second opening of said receptacle member into each of said conduits, of said cuvette, a first compound contained within a first of said conduits, wherein said first compound reacts with the blood sample within the first of said conduits to produce a first coagulation characteristic, and a second compound contained within a second of said conduits, wherein said second compound reacts with the blood sample within the second of said conduits to produce a second coagulation characteristic.
Claim 2
Dependent Claim
259 words
A blood sampling device for providing a blood sample in combination with a cuvette for receiving and performing a blood coagulation test on said blood sample, the combination therewith comprising: a lancet for creating an incision in a patient's skin that causes the patient to bleed; a receptacle assembly coupled to said lancet, said receptacle assembly having a receptacle member for receiving a predetermined volume of blood from the patient therein and a receptacle attachment member for coupling said receptacle assembly to said lancet, said receptacle member having a conical-shaped reservoir member extending up from an unitary with a surface of said receptacle attachment member, said conical-shaped reservoir including a first opening through which blood can enter said receptacle member and a second opening through which said blood sample can be drawn from said receptacle member, a cuvette comprising a transparent member having a plurality of conduits for receiving and performing said blood coagulation test on said blood sample and, a channel common to said plurality on conduits through which said predetermined volume of the blood sample can be drawn from said second opening of said receptacle member into each of said conduits, of said cuvette, a first compound contained within a first of said conduits, wherein said first compound reacts with the blood sample within the first of said conduits to produce a first coagulation characteristic, and a second compound contained within a second of said conduits, wherein said second compound reacts with the blood sample within the second of said conduits to produce a second coagulation characteristic.
Claim 3
Dependent Claim
15 words
The device according to claim 1, wherein said receptacle assembly and said lancet are disposable.
Claim 4
Dependent Claim
16 words
The device according to claim 2, wherein said receptacle assembly is removably attached to said lancet.
Claim 5
Dependent Claim
15 words
The device according to claim 2, wherein said receptacle assembly is unitary with said lancet.
Claim 6
Dependent Claim
17 words
The device according to claim 1, wherein said receptacle attachment member is unitary with said lancet device.
Claim 7
Dependent Claim
17 words
The device according to claim 1, wherein said first opening is substantially larger than said second opening.
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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) | 2001-08-31 | 2002-03-02 | 2002-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-31 | 2006-03-02 | 2006-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-31 | 2010-03-02 | 2010-09-01 | $7700.00 | Window Closed / Lapsed |