Waterborne lubricant for teflon products

Details Waterborne lubricant for teflon products Waterborne lubricant for teflon products

C - Chemistry, Metallurgy

10

M

C10M 107/50 (2006.01) A61L 29/00 (2006.01) C10M 173/02 (2006.01)

Patent

CA 2221928

This invention relates to a new water soluble lubricant for a medical device, such as a catheter and an introducer needle. The lubricant is a silicone surfactant which is non-ionic and which is a good lubricating fluid. Preferably the silicone surfactant that is used is a block copolymer polyalkylene oxide-modified polydimethylsiloxane. Water is used as the solvent for this lubricant. The lubrication solution includes a solution stabilizer to clarify the solution and antimicrobial agents to inhibit microbial growth in the water solution or on the coated product. Vitamin E or its derivatives may also be used in the lubrication solution. When the lubrication solution is used to lubricate Teflon products, a small amount of a low molecular weight alcohol is added to the lubrication solution to increase wettability.

L'invention porte sur un nouveau lubrifiant hydrosoluble pour un dispositif médical, tel qu'un cathéter et une aiguille extérieure. Il s'agit d'un surfactant de silicone non-ionique qui est un bon liquide de lubrification. De préférence, le surfactant de silicone utilisé est un copolymère séquencé de polydiméthylsiloxane modifié par un poly(oxyde d'alkylène). On utilise de l'eau comme solvant dans ce lubrifiant. La solution lubrifiante comprend un stabilisant qui la clarifie et des agents antimicrobiens qui préviennent la croissance microbienne dans la solution aqueuse ou sur le produit enduit. On peut également inclure de la vitamine E ou ses dérivés dans la solution lubrifiante. Lorsque le lubrifiant est utilisé pour lubrifier des articles en Téflon, on ajoute une petite quantité d'alcool à faible poids moléculaire à la solution lubrifiante pour en augmenter la mouillabilité.

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