US5507932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for electrolyzing fluids
Assignee: Schlumberger Technology Corp
•
Filing: 1994-08-26
•
Granted: 1996-04-16
•
Expires: 2014-08-26
Abstract
Abstract An apparatus for electrolyzing fluids is disclosed. The resulting electrolyzed fluids are particularly suited for treating physiological materials such as whole blood, plasma, or cell isolates in order to reduce the effect of harmful microorganisms. A container holds the fluid and a power supply provides a source of electrical current to an anode and a cathode positioned within the container. The anode comprises a base material selected from titanium and niobium. An outer layer of platinum is bonded to the base. The anode comprises a cylindrical shape. The cathode is also connected to the power supply and comprises titanium and has a substantially cylindrical shape. The cathode is positioned concentrically in relation to the anode. The spacing between the cathode and the anode is not greater than a preferred amount. Moreover, the voltage potential between the cathode and the anode is not greater than a preferred amount.
Inventors
- 👤 Daniel L. Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:21
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/467; C02F1/4672; C02F1/4674; A; A61; A61L; A61L2/00; A61L2/02; A61L2/03; A61L2/035; A61L2/16; A61L2/18; A61P; A61P31/00; A61P31/04; C02F1/46104; A61C; A61C19/00; A61C19/002; A61L2103/00; A61L2103/05; C02F1/72; C02F1/78; C02F1/46109; C02F2001/46133; C02F2001/46138; C02F2001/46142; C02F2001/46152; C02F2103/00; C02F2103/02; C02F2103/026; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4612; C02F2201/4618; C02F2201/46185; C02F2301/00; C02F2301/02; C02F2301/024; C02F2303/00; C02F2303/04
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
221 words
An apparatus for electrolyzing fluids comprising: container means for holding a fluid for in vivo treatment of a patient, the fluid having a saline concentration of at least about 0.15% and the container means comprising a container fabricated from a biologically Compatible material; power supply means for providing a source of electrical current; a first anode connected to the power supply means, the anode comprising a base, said base comprising a metal selected from the group consisting of platinum, titanium and niobium, said first anode further comprising an outer layer of platinum bonded to the base, the anode comprising a cylindrical shape and positioned in the container means such that the outer layer of the anode is immersed in any fluid held by the container means; a first cathode connected to the power supply means, the cathode comprising a metal and a substantially cylindrical shape and positioned concentrically in relation to the anode, the spacing between the cathode and the anode being not greater than about one-half inch and the voltage potential between the cathode and the anode being not greater than about thirty volts when fluids are being electrolyzed therein; and means, associated with the power supply, for adjusting the voltage applied between the first anode and the first cathode to a voltage which is less than about thirty volts.
Claim 2
Independent Claim
221 words
An apparatus for electrolyzing fluids comprising: container means for holding a fluid for in vivo treatment of a patient, the fluid having a saline concentration of at least about 0.15% and the container means comprising a container fabricated from a biologically Compatible material; power supply means for providing a source of electrical current; a first anode connected to the power supply means, the anode comprising a base, said base comprising a metal selected from the group consisting of platinum, titanium and niobium, said first anode further comprising an outer layer of platinum bonded to the base, the anode comprising a cylindrical shape and positioned in the container means such that the outer layer of the anode is immersed in any fluid held by the container means; a first cathode connected to the power supply means, the cathode comprising a metal and a substantially cylindrical shape and positioned concentrically in relation to the anode, the spacing between the cathode and the anode being not greater than about one-half inch and the voltage potential between the cathode and the anode being not greater than about thirty volts when fluids are being electrolyzed therein; and means, associated with the power supply, for adjusting the voltage applied between the first anode and the first cathode to a voltage which is less than about thirty volts.
Claim 3
Dependent Claim
172 words
An apparatus for electrolyzing fluids as defined in claim 1 further comprising: a second anode connected to the power supply means, the second anode comprising a base, said base comprising a metal selected from the group consisting of titanium and niobium, said second anode further comprising an outer layer of platinum bonded to the base, the second anode comprising a cylindrical shape and positioned in the container means such that the outer layer of the anode is completely immersed in any fluid held by the container means; and a second cathode connected to the power supply means, the second cathode comprising a metal selected from the group consisting of titanium and niobium and a substantially cylindrical shape and positioned concentrically in relation to the first anode and the first anode, the spacing between the second cathode and the second anode being not greater than about three-eights inch and the voltage potential between the second cathode and the second anode being not greater than about thirty volts when fluids are being electrolyzed thereby.
Claim 4
Dependent Claim
187 words
An apparatus for electrolyzing fluids as defined in claim 2 further comprising: a plurality of anodes each connected to the power supply means, each of the plurality of anodes comprising a base, said base comprising a metal selected from the group consisting of titanium and niobium, each of said plurality of anodes further comprising an outer layer of platinum bonded to the base, the plurality of anodes each comprising a cylindrical shape and positioned in the container means such that the outer layer of the plurality of anodes is completely immersed in any fluid held by the container means; and a plurality of cathodes each connected to the power supply means, the plurality of cathodes of a substantially cylindrical shape and positioned concentrically in relation to the first anode, the second anode, and the plurality of anodes, the spacing between each of the plurality of cathodes and the plurality of anodes being not greater than about three-eights inch and the voltage potential between each of the plurality of cathodes and the plurality of anodes being not greater than about thirty volts when fluids are being electrolyzed thereby.
Claim 5
Dependent Claim
48 words
An apparatus for electrolyzing fluids as defined in claim 1 wherein the first anode consists essentially of a base metal and an outer layer, the base metal consisting essentially of niobium and the outer layer consisting essentially of platinum and wherein the first cathode consists essentially of titanium.
Claim 6
Dependent Claim
48 words
An apparatus for electrolyzing fluids as defined in claim 1 wherein the first anode consists essentially of a base metal and an outer layer, the base metal consisting essentially of niobium and the outer layer consisting essentially of platinum and wherein the first cathode consists essentially of niobium.
Claim 7
Dependent Claim
18 words
An apparatus for electrolyzing fluids as defined in claim 1 wherein the fluid consists essentially of saline solution.
Claim 8
Dependent Claim
18 words
An apparatus for electrolyzing fluids as defined in claim 1 wherein the container means further comprises a lid.
Claim 9
Dependent Claim
44 words
An apparatus for electrolyzing fluids as defined in claim 1 wherein the container means comprises a cylindrical container comprising a top portion and a bottom portion and wherein the first anode and the first cathode are positioned in the bottom portion of the container.
Claim 10
Dependent Claim
17 words
An apparatus for electrolyzing fluids as defined in claim 1 wherein the base consists essentially of niobium.
Claim 11
Dependent Claim
17 words
An apparatus for electrolyzing fluids as defined in claim 1 wherein the base consists essentially of titanium.
Claim 12
Dependent Claim
37 words
An apparatus for electrolyzing fluids as defined in claim 1 wherein the first anode comprises an anode surface and the first cathode comprises a cathode surface and the anode surface and the cathode surface are substantially parallel.
Claim 13
Dependent Claim
35 words
An apparatus for electrolyzing fluids as defined in claim 1 wherein the outer layer of platinum comprises a layer of platinum having a thickness in the range from about 0.02 mils to about 0.20 mils.
Claim 14
Dependent Claim
28 words
An apparatus for electrolyzing fluids as defined in claim 12 wherein the outer layer of platinum comprises a layer of platinum having a thickness of about 0.06 mils.
Claim 15
Dependent Claim
26 words
An apparatus for electrolyzing fluids as defined in claim 1 wherein the spacing between the cathode and the anode is not greater than about one-quarter inch.
Claim 16
Dependent Claim
20 words
An apparatus for electrolyzing fluids as defined in claim 1 wherein the power supply comprises means for providing direct current.
References Cited (Backward Citations)
US3076754A
Cited
US3443055A
Cited
US3616355A
Cited
US3718540A
Cited
US4236992A
Cited
US4316787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-16 | 1999-10-16 | 2000-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-16 | 2003-10-16 | 2004-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-16 | 2007-10-16 | 2008-04-16 | $7700.00 | Window Closed / Lapsed |