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US 6,855,678 B2Granted
Medical residue treatment composition comprising a lithium salt
OwnerReginald Reith Whiteleyinventor
Life of this patent
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Abstract
The present invention relates to improved cleaning compositions and new methods for treating medical residue such as that remaining on surgical devices and appliances after use. The medical residue treatment compositions of the invention include: (a) at least one surfactant; (b) at least one solvent; (c) at least one co-solvent; (d) at least one nitrogen containing biocide; and (e) at least one organic chelating agent.
Claims12
A medical residue treatment composition which includes:
- at least one surfactant present in a range of about 0.05% to 15% by weight;
- at least one solvent;
- at least one co-solvent;
- at least one nitrogen containing biocide present in an amount from 0.5% to 20% by weight;
- and
- at least one organic chelating agent selected from the lithium salts of hydroxyorganic or organic acids;
- the lithium salts of a carbonate or bicarbonate or mixtures thereof;
- the lithium salts of carboxylated and substituted diethylamine;
- the lithium salts of substituted derivatives of ethylenediamine, lithium lactate, and dilithium citrate;
- lithium lauryl sulphate;
- lithium hydroxide;
- lithium triphosphate;
- lithium citrate;
- lithium tartrate;
- lithium methylmethacrylate;
- lithium glycolate;
- lithium acetate;
- lithium phosphate;
- and trilithium trinitriloacetate.
16 more elements
A medical residue treatment composition which includes:
- at least one surfactant present in an amount from 0.01% to 20% by weight;
- at least one solvent;
- at least one co-solvent;
- at least one nitrogen containing biocide present in an amount from 0.025% to 20% by weight;
- and
- at least one organic chelating agent selected from lithium bicarbonate, from about 0.05%-10.0% by weight;
- lithium carbonate, from about 0.05%-25.0% by weight;
- lithium phosphate, from about 0.10%-l10.0% by weight;
- lithium glycolate, from about 0.05%-5.0% by weight;
- lithium lactate, from about 0.05%-5.0% by weight;
- lithium citrate, from about 0.05%-7.5% by weight;
- lithium tartrate, from about 0.05%-5.0% by weight;
- lithium methylmethacrylate, from about 0.05%-5.0% by weight;
- lithium benzoate, from about 0.05%-2.5% by weight;
- lithium lauryl sulphate, from about 0.05%-4.0% by weight;
- lithium alkylarylsulphonate, from about 0.05%-10.0% by weight;
- and Lithium Dowanol 3B0 dialkyl (C2-8) diphenoloxide disulfonate, from about 0.05%-10.0% by weight.
14 more elements
Dependencies are inferred from the claim text.