Patent US4133891A successfully refreshed from Google Patents.
US4133891A
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Peritoneal dialysis solution containing nitroprusside
Assignee: University of Missouri–St. Louis
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Filing: 1977-03-28
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Granted: 1979-01-09
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Expires: 1997-03-28
Abstract
Abstract A peritoneal dialysis solution containing the vasodilating drug nitroprusside which is effective to increase peritoneal clearances and thereby permit a significant reduction in the time devoted to the performance of a dialysis procedure.
Inventors
- 👤 Karl D. Nolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:48
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/28; A61K31/295
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
44 words
A peritoneal dialysis fluid containing the following ingredients in the approximate concentration of: 140 mEq/L sodium 101 mEq/L chloride 45 mEq/L acetate 1.5 mEq/L magnesium 4 mEq/L calcium; and the vasodilating drug nitroprusside in the approximate concentration of 3 to 6 mg. per liter.
Claim 2
Dependent Claim
44 words
A peritoneal dialysis fluid containing the following ingredients in the approximate concentration of: 140 mEq/L sodium 101 mEq/L chloride 45 mEq/L acetate 1.5 mEq/L magnesium 4 mEq/L calcium; and the vasodilating drug nitroprusside in the approximate concentration of 3 to 6 mg. per liter.
Claim 3
Independent Claim
84 words
A method for increasing peritoneal dialysis clearances within a patient surgically fitted with an indwelling catheter comprising the steps of: providing a dialysis fluid having in solution the ingredients in the concentrations as follows: 140 mEq/L sodium 101 mEq/L chloride 45 mEq/L acetate 1.5 mEq/L magnesium 4 mEq/L calcium; and adding the vasodilating drug nitroprusside in the approximate concentration of 3 to 6 mg. per liter to the dialysis fluid defined; and infusing said modified dialysis fluid into a patient through the indwelling catheter.
Claim 4
Independent Claim
84 words
A method for increasing peritoneal dialysis clearances within a patient surgically fitted with an indwelling catheter comprising the steps of: providing a dialysis fluid having in solution the ingredients in the concentrations as follows: 140 mEq/L sodium 101 mEq/L chloride 45 mEq/L acetate 1.5 mEq/L magnesium 4 mEq/L calcium; and adding the vasodilating drug nitroprusside in the approximate concentration of 3 to 6 mg. per liter to the dialysis fluid defined; and infusing said modified dialysis fluid into a patient through the indwelling catheter.
Claim 5
Dependent Claim
16 words
The peritoneal dialysis fluid of claim 1 including: 3 mEq/L potassium chloride as an additional ingredient.
Claim 6
Dependent Claim
20 words
The method of claim 2 including: adding potassium chloride in the approximate concentration of 3 mEq/L to the dialysis fluid.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-08 | 1982-07-10 | 1983-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-08 | 1986-07-10 | 1987-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-08 | 1990-07-10 | 1991-01-09 | $7700.00 | Window Closed / Lapsed |