US4363801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for treating hyperbilirubinemia
Assignee: Texas A&M University System
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Filing: 1981-02-09
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Granted: 1982-12-14
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Expires: 2001-02-09
Abstract
Abstract Methods and preparations for treating hyperbilirubinemia utilizing chitosan salts as the active agent. A method of preparing the chitosan salts for oral administration in a liquid carrier is disclosed.
Inventors
- 👤 Joseph J. Nagyvary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:28
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/70; A61K31/715; A61K31/716; A61K31/722; A61K9/00; A61K9/0087; A61K9/0095; A61K9/14; A61K9/19
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
29 words
A method of treating hyperbilirubinemia which comprises orally administering to the affected patient an amount of soluble chitosan effective to substantially reduce the amount of bilirubin in the blood.
Claim 2
Independent Claim
29 words
A method of treating hyperbilirubinemia which comprises orally administering to the affected patient an amount of soluble chitosan effective to substantially reduce the amount of bilirubin in the blood.
Claim 3
Dependent Claim
24 words
The method of claim 1 in which said chitosan is administered as a water soluble salt in a solution of water with flavor additives.
Claim 4
Dependent Claim
21 words
The method of claim 1 in which said chitosan is administered as a chitosan salt in a solution of fruit juice.
Claim 5
Dependent Claim
25 words
The method of claim 3 in which the amount of chitosan salt administered is from 0.5 to 5 grams per 200 ml of fruit juices.
Claim 6
Dependent Claim
23 words
The method of claim 1 in which said chitosan is administered in an amount of from 1% to 12% of the patient's diet.
Claim 7
Dependent Claim
49 words
The method as set forth in claim 2 in which said chitosan salt is formed by: dissolving chitosan in a weak acidic solution; agitating said solution; lyophilizing said solution; and pulverizing the chitosan salts from said lyophilizing into a finely ground powder for mixing in said solution of water.
Claim 8
Dependent Claim
51 words
The method as set forth in claim 3 in which said chitosan salt is formed by: dissolving chitosan in a weak acidic solution; agitating said solution; lyophilizing said solution; and pulverizing the chitosan salts from said lyophilizing into a finely ground powder for said mixing in said solution of fruit juice.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-13 | 1986-06-14 | 1986-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-13 | 1990-06-14 | 1990-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-13 | 1994-06-14 | 1994-12-14 | $7700.00 | Window Closed / Lapsed |