Medical components having coated surfaces exhibiting low friction and/or low gas/liquid permeability
OwnerNestor Rodriguez, Paolo Mangiagalliinventors
Life of this patent
Estimating the term…
Abstract
This invention relates to components useful for medical articles, such as a syringe assemblies, having sliding contact surface (s) coated with at least one coating layer, wherein the contact surface has an average surface roughness (Ra) ranging from about 10 nm to about 1700 nm and/or the coating layer has crystalline domains, the mass of the crystalline domains being at least about 20% of the total mass of the coating layer, and methods of making the same.
Claims26
An article of manufacture comprising a first component having a contact surface in frictional engagement with a contact surface of a second component, wherein at least one of the first component and the second component comprises a substrate having at least one coating layer on at least a portion of a surface of the substrate, wherein the contact surface of the first and/or second component has an average surface roughness (Ra) ranging from about 10 nm to about 1700 nm.
A medical article comprising a chamber, the chamber comprising a substrate having at least one coating layer on at least a portion of a surface of the substrate, wherein an outer surface of the chamber has an average surface roughness (Ra) ranging from about 10 nm to about 1700 nm.
A chamber for a medical article, the chamber having a contact surface adapted to sealingly engage a contact surface of a sealing member for a medical article, wherein the chamber comprises a substrate having at least one coating layer on at least a portion of a surface of the substrate, wherein the contact surface of the chamber has an average surface roughness (Ra) ranging from about 10 nm to about 1700 nm.
A sealing member for a medical article, the sealing member having a contact surface in sliding engagement with a contact surface of a chamber of a medical article and adapted to sealingly engage the contact surface of the chamber, wherein the sealing member comprises a substrate having at least one coating layer on at least a portion of a surface of the substrate, wherein the contact surface of the sealing member has an average surface roughness (Ra) ranging from about 10 nm to about 1700 nm.
Dependencies are inferred from the claim text.