Patent US5041079A successfully refreshed from Google Patents.
US5041079A
Expired / Lapsed
US
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Method for removing human immunodeficiency virus and/or its related compounds
Assignee: Kuraray Co Ltd
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Filing: 1988-11-29
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Granted: 1991-08-20
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Expires: 2008-11-29
Abstract
Abstract The present invention provides removing agents comprising a solid substance with a weakly acidic or weakly alkaline surface. Since the removing agents can be used for treating body fluid of a patient by, for example, extra-corporeal circulation system thereby effectively removing human immunodeficiency virus and/or its related compounds contained in the body fluid, it is expected that the life of the patient could be prolonged. The significance of the present invention therefore is great.
Inventors
- 👤 Seisuke Takashima
- 👤 Keiichi Kurokawa
- 👤 Shuhei Nakaji
- 👤 Ken Yamane
- 👤 Ryosuke Murayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:00
CPC Classifications
B; B01; B01D; B01D15/00; A; A61; A61M; A61M1/00; A61M1/34; A61M1/3472; A61M1/3486; B01J; B01J39/00; B01J39/04; B01J39/07; A61M1/36; A61M1/3679; A61M2202/00; A61M2202/20; A61M2202/206; Y; Y10; Y10S; Y10S128/00; Y10S128/03
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
50 words
A method for removing human immunodeficiency virus, its related compounds, or a combination thereof from body fluids of patients comprising the step of contacting said body fluids with a solid carrier of a 3-component calcinated product of hydroxyapatite-silica-alumina wherein said solid carrier has a pH ranging from 2.5 to 6.9.
Claim 2
Independent Claim
50 words
A method for removing human immunodeficiency virus, its related compounds, or a combination thereof from body fluids of patients comprising the step of contacting said body fluids with a solid carrier of a 3-component calcinated product of hydroxyapatite-silica-alumina wherein said solid carrier has a pH ranging from 2.5 to 6.9.
Claim 3
Independent Claim
86 words
A method for removing immunodeficiency virus, its related compounds, or a combination thereof from body fluids of patients comprising the steps of: (a) passing blood taken from a patient in need of such treatment through a column packed with a solid carrier of a 3-component calcinated product of hydroxyapatite-silica-alumina, wherein said solid carrier has a pH ranging from 2.5 to 6.9 to remove human immunodeficiency virus, its related compounds, or a combination thereof, thereby cleansing said blood; and (b) administering said cleansed blood to the patient.
Claim 4
Independent Claim
86 words
A method for removing immunodeficiency virus, its related compounds, or a combination thereof from body fluids of patients comprising the steps of: (a) passing blood taken from a patient in need of such treatment through a column packed with a solid carrier of a 3-component calcinated product of hydroxyapatite-silica-alumina, wherein said solid carrier has a pH ranging from 2.5 to 6.9 to remove human immunodeficiency virus, its related compounds, or a combination thereof, thereby cleansing said blood; and (b) administering said cleansed blood to the patient.
Claim 5
Independent Claim
106 words
A method for removing human immunodeficiency virus, its related compounds or a combination thereof from body fluids of patients comprising the steps of: (a) separating contaminated blood taken from a patient in need of such treatment into hemocytes and plasma; (b) passing said plasma through column packed with a solid carrier of a 3-component calcinated product of hydroxyapatite-silica-alumina, wherein said solid carrier has a pH ranging from 2.5 to 6.9 to remove human immunodeficiency virus, its related compounds or both, thereby cleansing said plasma; (c) combining said cleansed plasma with hemocytes to form cleansed whole blood; and (d) returning said cleansed whole blood to said patient.
Claim 6
Independent Claim
106 words
A method for removing human immunodeficiency virus, its related compounds or a combination thereof from body fluids of patients comprising the steps of: (a) separating contaminated blood taken from a patient in need of such treatment into hemocytes and plasma; (b) passing said plasma through column packed with a solid carrier of a 3-component calcinated product of hydroxyapatite-silica-alumina, wherein said solid carrier has a pH ranging from 2.5 to 6.9 to remove human immunodeficiency virus, its related compounds or both, thereby cleansing said plasma; (c) combining said cleansed plasma with hemocytes to form cleansed whole blood; and (d) returning said cleansed whole blood to said patient.
Claim 7
Dependent Claim
14 words
The method according to claim 3, wherein said contaminated blood is separated by centrifugation.
Claim 8
Dependent Claim
16 words
The method according to claim 3, wherein said contaminated blood is separated via a separation membrane.
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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) | 1994-08-19 | 1995-02-18 | 1995-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-19 | 1999-02-18 | 1999-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-19 | 2003-02-18 | 2003-08-20 | $7700.00 | Window Closed / Lapsed |