A medical appliance having a slidable coating layer that moves in contact with an inner surface of a medical member or that of a lumen and has the slidable coating layer formed at a part thereof which contacts the medical member or the lumen. The slidable coating layer is formed of a composition which does not contain solid fine particles and contains a silicone-based resin which is a product of an addition reaction between silicone having a vinyl group and silicone having a hydrogen group bonded to a silicon atom.
