US6207201B1
Expired / Lapsed
US
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Sodium hypochlorite based disinfectant and sterilizer for medical-surgical instruments
Assignee: Alcavis International Inc
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Filing: 1993-06-03
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Granted: 2001-03-27
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Expires: 2013-06-03
Abstract
Abstract A first embodiment of the present invention is directed to an aqueous disinfectant solution comprising an alkali metal or alkaline earth metal hypochlorite, an amount of base sufficient to raise the pH of the solution to at least 12, and water. A second embodiment of the present invention is directed to a method for sterilizing medical and dental instruments and hard surfaces which comprises contacting the medical or dental instruments or hard surfaces with an aqueous disinfecting solution comprising an alkali metal or alkaline earth metal hypochlorite, an amount of a base sufficient to raise the pH of the solution to at least 12, and water, for a time sufficient to disinfect the medical or dental instruments or hard surface.
Inventors
- 👤 Giuseppe Piacenza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:04
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/16; A61L2/18; A01; A01N; A01N59/00
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
59 words
An aqueous disinfectant composition consisting essentially of: (A) an electrolyzed chloroxider solution which: (i) contains sodium hypochlorite, and (ii) provides 11 g of available chlorine per liter of said solution: (B) an amount of alkali metal or alkaline earth metal base sufficient to raise the pH of said composition to at least 12; (C) sodium chloride; and (D) water.
Claim 2
Dependent Claim
59 words
An aqueous disinfectant composition consisting essentially of: (A) an electrolyzed chloroxider solution which: (i) contains sodium hypochlorite, and (ii) provides 11 g of available chlorine per liter of said solution: (B) an amount of alkali metal or alkaline earth metal base sufficient to raise the pH of said composition to at least 12; (C) sodium chloride; and (D) water.
Claim 3
Dependent Claim
17 words
The aqueous disinfectant composition according to claim 1 , wherein said base is an alkali metal hydroxide.
Claim 4
Dependent Claim
17 words
The aqueous disinfectant composition according to claim 2 , wherein said alkali metal hydroxide is sodium hydroxide.
Claim 5
Dependent Claim
23 words
The aqueous disinfectant composition according to claim 1 , wherein the pH of said composition is within the range of 12 to 13.
Claim 6
Dependent Claim
48 words
The aqueous disinfectant composition according to claim 1 , wherein 100 milliliters of said aqueous disinfectant composition consists essentially of: a dilute electrolyzed chloroxidizer solution having 0.0225 to 0.0288 g of available chlorine, 3.6 to 4.4 g sodium hydroxide, sodium chloride and water sufficient to make 100 milliliters.
Claim 7
Dependent Claim
36 words
The aqueous disinfectant composition according to claim 5 , wherein a dilute electrolyzed chloroxidizer solution having 0.025 g of available chlorine, 4.0 g sodium hydroxide, sodium chloride and water sufficient to make 100 milliliters are present.
Claim 8
Independent Claim
86 words
A method of disinfecting medical and dental instruments and hard surfaces which comprises contacting the medical or dental instruments or hard surfaces with an effective amount of an aqueous disinfectant composition consisting essentially of: (A) an electrolyzed chloridizer solution which: (i) contains sodium hypochlorite, and (ii) provides 11 g of available chlorine per liter of said solution; (B) an amount of alkali metal or alkaline earth metal base sufficient to raise the pH of said composition to at least 12; (C) sodium chloride; and (D) water.
Claim 9
Independent Claim
86 words
A method of disinfecting medical and dental instruments and hard surfaces which comprises contacting the medical or dental instruments or hard surfaces with an effective amount of an aqueous disinfectant composition consisting essentially of: (A) an electrolyzed chloridizer solution which: (i) contains sodium hypochlorite, and (ii) provides 11 g of available chlorine per liter of said solution; (B) an amount of alkali metal or alkaline earth metal base sufficient to raise the pH of said composition to at least 12; (C) sodium chloride; and (D) water.
Claim 10
Dependent Claim
26 words
The method according to claim 7 , wherein said medical or dental instrument or hard surface is contacted with said aqueous disinfectant composition for 15 minutes.
Claim 11
Dependent Claim
15 words
The method according to claim 7 , wherein said base is an alkali metal hydroxide.
Claim 12
Dependent Claim
15 words
The method according to claim 9 , wherein said alkali metal hydroxide is sodium hydroxide.
Claim 13
Dependent Claim
21 words
The method according to claim 7 , wherein the pH of said composition is within the range of 12 to 13.
Claim 14
Dependent Claim
46 words
The method according to claim 7 , wherein 100 milliliters of said aqueous disinfectant composition consists essentially of a dilute electrolyzed chloroxidizer solution having 0.0225 to 0.0288 g of available chlorine, 3.6 to 4.4 g sodium hydroxide, sodium chloride and water sufficient to make 100 milliliters.
Claim 15
Dependent Claim
42 words
The method according to claim 12 , wherein 100 milliliters of said aqueous disinfectant composition consists essentially of a dilute electrolyzed chloroxidizer solution having 0.025 g of available chlorine, 4.0 g sodium hydroxide, sodium chloride and water sufficient to make 100 milliliters.
Claim 16
Dependent Claim
53 words
An aqueous disinfectant composition consisting essentially of a diluted electrolyzed chloroxidizeer solution which contains sodium hypochlorite and provides 11 g of available chlorine per liter of solution, an amount of alkali metal or alkaline earth metal base sufficient to raise the pH of said composition to at least 12, sodium chloride, and water.
Claim 17
Dependent Claim
53 words
An aqueous disinfectant composition consisting essentially of a diluted electrolyzed chloroxidizeer solution which contains sodium hypochlorite and provides 11 g of available chlorine per liter of solution, an amount of alkali metal or alkaline earth metal base sufficient to raise the pH of said composition to at least 12, sodium chloride, and water.
Claim 18
Dependent Claim
52 words
The aqueous disinfectant composition according to claim 14 , wherein 100 milliliters of said aqueous disinfectant composition consists essentially of a dilute electrolyzed chlorixidizer solution having 0.0225 to 0.0228 g of available chlorine, 3.6 to 4.4 g sodium hydroxide, 0.35 to 0.45 g sodium chloride, and water sufficient to make 100 milliliters.
Claim 19
Dependent Claim
41 words
The aqueous disinfectant composition according to claim 15 , wherein for 100 milliliters: a dilute electrolyzed chlorixidizer solution having 0.0225 g of available chlorine, 4.0 g sodium hydroxide, 0.39 g sodium chloride and water sufficient to make 100 milliliters are present.
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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) | 2004-03-26 | 2004-09-25 | 2005-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-03-26 | 2008-09-25 | 2009-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-03-26 | 2012-09-25 | 2013-03-27 | $7700.00 | Window Closed / Lapsed |