Medical device, combination of coating solutions, and method for producing medical device

A medical device having:

• an elastic modulus of 100 kPa or more and 2,000 kPa or less,
• a water content of 5% by mass or less,
• a tensile elongation of 50% or more and 3,000% or less, and
• a dynamic contact angle (advancing angle) relative to a borate buffer of 80° or less, wherein a surface friction coefficient ratio (Qa) in a state of being wetted with a borate buffer is 0.8 or less,
• provided that Qa=MIUa/MIUo:
• where MIUa represents a coefficient of surface friction between the medical device and a smooth quartz glass plate in the state of being wetted with the borate buffer;
• and MIUo is 0.305,
• wherein the medical device includes a base material, and a layer made of an acidic polymer and a basic polymer is formed on at least a part of a surface of the base material,
• at least one of the basic and the acidic polymers comprises a polymer having an amide bond selected from the group consisting of:
• acidic polymers having an amide bond selected from a (meth)acrylic acid/N,N-dimethylacrylamide copolymer and a 2-acrylamido-2-methylpropanesulfonic acid/N,N-dimethylacrylamide copolymer, and
• basic polymers having an amide bond selected from an N,N-dimethylaminoethyl methacrylate/N,N-dimethylacrylamide copolymer and an N,N-dimethylaminopropyl acrylamide/N,N-dimethylacrylamide copolymer;
• and
• wherein the base material contains, as main components, a copolymer of the following components A and B:
• component A:
• a polysiloxane compound which has a plurality of polymerizable functional groups per molecule, and also has a number average molecular weight of 6,000 or more, and
• component B:
• a polymerizable monomer having a fluoroalkyl group.