US 11,872,326 B2
Medical instrument
Masanori Kuramoto, Kanagawa (JP); and Narumi Yokote, Kanagawa (JP)
Assigned to TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Filed by TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Filed on Aug. 18, 2020, as Appl. No. 16/996,017.
Application 16/996,017 is a continuation of application No. PCT/JP2019/006073, filed on Feb. 19, 2019.
Claims priority of application No. 2018-027839 (JP), filed on Feb. 20, 2018.
Prior Publication US 2020/0376171 A1, Dec. 3, 2020
Int. Cl. A61L 29/14 (2006.01); C08F 220/38 (2006.01); A61L 29/04 (2006.01); C09J 133/14 (2006.01)
CPC A61L 29/14 (2013.01) [A61L 29/041 (2013.01); A61L 29/043 (2013.01); A61L 29/044 (2013.01); C08F 220/387 (2020.02); C09J 133/14 (2013.01); A61L 2400/10 (2013.01); A61L 2420/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A medical device comprising:
a substrate layer;
an adhesive layer, which is formed on at least a portion of the substrate layer, the adhesive layer comprising a hydrophilic copolymer comprising a structural unit derived from a polymerizable monomer (A) having a sulfobetaine structure, a structural unit derived from a polymerizable monomer (B) having at least one group selected from the group consisting of a sulfonic acid group (—SO3H), a sulfuric acid group (—OSO3H), a sulfurous acid group (—OSO2H), and salts thereof, and a structural unit derived from a polymerizable monomer (C) having a photoreactive group; and
a surface lubricious layer, which is formed on at least a portion of the adhesive layer, the surface lubricious layer comprising a hydrophilic polymer which is dissolvable in a solvent that dissolves or swells the hydrophilic copolymer.