US 6,805,836 B2Granted

Prevention of preservative uptake into biomaterials

AssigneeBausch & Lomb Incorporated

InventorsJoseph C. Salamone, Daniel M. Ammon, Jr., Zhenze Hu

Life of this patent

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Abstract

A method for inhibiting the ability of a biomaterial to sorb cationic antimicrobials comprising treating the surface of said biomaterial with a cationic polysaccharide.

Claims19

Dependent claims

A method for treating a hydrogel biomaterial comprising contacting the surface of said hydrogel biomaterial with a cationic polysaccharide to inhibit the ability of the hydrogel biomaterial to sorb cationic antimicrobials.

Dependencies are inferred from the claim text.

Facts

Application: 09/738,808Filed 15 Dec 2000
Published: US 2002/0114729 A122 Aug 2002
Granted: 19 Oct 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

C11D 3/48
Other compounding ingredients of detergent compositions covered in group C11D1/00: medical, disinfecting agents, disinfecting, antibacterial,…
A01N 47/44
Containing —N=CX2 groups, e.g. isothiourea: guanidine; Derivatives thereof
A61L 12/141
Organic compounds not covered by groups A61L12/10 or A61L12/12: biguanides, e.g. chlorhexidine
C11D 3/0078
Other compounding ingredients characterised by their effect: compositions for cleaning contact lenses, spectacles or lenses

Family

US 2002/0114729 A1Pre-grant publication · published 22 Aug 2002
US 6,805,836 B2This patent

From the US filing history. Foreign family members aren’t listed.

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