US 12,252,657 B2
Self-lubricating medical articles
He Bai, Sandy, UT (US); and Marc Weimer, South Jordan, UT (US)
Assigned to Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed by Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed on Jan. 10, 2023, as Appl. No. 18/095,329.
Application 18/095,329 is a division of application No. 16/577,824, filed on Sep. 20, 2019, granted, now 11,613,719.
Claims priority of provisional application 62/735,332, filed on Sep. 24, 2018.
Prior Publication US 2023/0159843 A1, May 25, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C10M 105/76 (2006.01); A61L 29/06 (2006.01); A61L 29/08 (2006.01); A61L 29/14 (2006.01); A61L 31/06 (2006.01); C08G 18/28 (2006.01); C08G 18/48 (2006.01); C08G 18/75 (2006.01); C08G 18/76 (2006.01); C10M 171/00 (2006.01); C10N 40/00 (2006.01)
CPC C10M 105/76 (2013.01) [A61L 29/06 (2013.01); A61L 29/085 (2013.01); A61L 29/14 (2013.01); A61L 31/06 (2013.01); C08G 18/289 (2013.01); C08G 18/4854 (2013.01); C08G 18/755 (2013.01); C08G 18/7621 (2013.01); C10M 171/00 (2013.01); A61L 2400/10 (2013.01); C10M 2213/06 (2013.01); C10N 2040/50 (2020.05)] 10 Claims
OG exemplary drawing
 
1. A medical article formed from a polyurethane-based resin, which is a reaction product of the following ingredients:
a diisocyanate;
a diol chain extender;
a polyglycol; and
a modifying oligomer incorporated into a backbone of the polyurethane-based resin formed by the diisocyanate, the polyglycol, and the diol chain extender, the modifying oligomer comprising a diol-terminated perfluoropolyether; and
wherein a hard segment content is in the range of from greater than 60% to 75% by weight and a soft segment content of the resin is in the range of from 25% to less than 40% by weight; and
wherein the medical article has a contact angle with water that is in a range of from at least 90° to 105°,
wherein a concentration of the modifying oligomer of the polyurethane-based resin at a surface of the medical article is higher than a theoretical concentration based on uniform distribution of ingredients of the polyurethane-based resin, and the medical article is effective as a self-lubricating and/or self-anti-fouling medical article.