US3909377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of a chloride solution
Assignee: Gambro Industries SAS
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Filing: 1972-12-14
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Granted: 1975-09-30
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Expires: 1992-12-14
Abstract
Abstract A process and apparatus for purification of a sodium chloride solution dialysis liquid in which the liquid is subjected to an electrolysis.
Inventors
- 👤 Jean Bizot
- 👤 Andre Sausse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:32
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/16; A61M1/1694; A61M1/1696; C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/467; C02F1/4672; C02F1/4674
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
61 words
IN A PROCESS FOR THE REGENERATION OF A DISALYSIS LIQUID CONTAINING SODIUM CHLORIDE WHICH IS RECYCLED IN A HAEMODIALYSER, THE IMPROVEMENT CONSISTING IN DESTROYING AT LEAST PARTIALLY THE OXIDISABLE WASTE MATTER ISSUING FROM THE BLOOD THROUGH THE HAEMODIALYSIS MEMBRANE BY ELECTROLYSIS OF SAID DIALYSIS LIQUID AN ELECTROLYSIS CELL TO PRODUCE A SUFFICIENT AMOUNT OF SODIUM HYPOCHLORITE TO DESTROY SAID WASTE MATTER.
Claim 2
Dependent Claim
61 words
IN A PROCESS FOR THE REGENERATION OF A DISALYSIS LIQUID CONTAINING SODIUM CHLORIDE WHICH IS RECYCLED IN A HAEMODIALYSER, THE IMPROVEMENT CONSISTING IN DESTROYING AT LEAST PARTIALLY THE OXIDISABLE WASTE MATTER ISSUING FROM THE BLOOD THROUGH THE HAEMODIALYSIS MEMBRANE BY ELECTROLYSIS OF SAID DIALYSIS LIQUID AN ELECTROLYSIS CELL TO PRODUCE A SUFFICIENT AMOUNT OF SODIUM HYPOCHLORITE TO DESTROY SAID WASTE MATTER.
Claim 3
Dependent Claim
49 words
A process as claimed in claim 1, comprising the steps of regulating the intensity of the current of the electrolysis cell whereby the sodium hypochlorite produced by the electrolysis is at a rate such that the quanity of sodium hypochlorite is substantially zero at the inlet of the haemodialyser.
Claim 4
Dependent Claim
36 words
A process as claimed in claim 1, and further comprising the step of passing the dialysis liquid in contact with activated carbon and regenerating the activated carbon in situ by the sodium hypochlorite produced by electrolysis.
References Cited (Backward Citations)
US3149060A
Cited
US3051640A
Cited
US3210262A
Cited
US3433723A
Cited
US3682190A
Cited
US3691068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |