Coating materials and methods for medical devices
AssigneePiezolabs Medical Inc.
InventorJianlu Ma
Life of this patent
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Abstract
An implantable medical device has a structural framework having a base material that is coated with a surface enhancement layer. The coated structural framework is then poled with a desired polarity that carries either a positive charge or a negative charge on the surface of the coated structural framework when the structural framework is under deformation. The surface enhancement layer can be a copolymer or a zinc oxide coating, or can include some portions that are the copolymer and some portions that are the zinc oxide coating.
Claims20
A method of manufacturing an implantable medical device, comprising the steps of:
- providing a structural framework having a base metallic material;
- coating the structural framework with a polymeric coating comprising a copolymer polymerized onto the surface of the structural framework from at least one monomer unit of (—CF2-CFH—) and at least one monomer unit of —CH2-CF2-, wherein at least one monomer has a Glass Transition Temperature (Tg) less than about 95 degrees Celsius, and wherein in homopolymer form, the at least one monomer unit of (—CF2-CFH—) in the copolymer is protonated;
- and
- poling the coated structural framework with a desired polarity that carries either a positive charge or a negative charge on the surface of the coated structural framework.
A method of manufacturing an implantable medical device, comprising the steps of:
- providing a structural framework having a base metallic material;
- coating the structural framework with a ZnO coating;
- and
- poling the coated structural framework with a desired polarity that carries either a positive charge or a negative charge on the surface of the coated structural framework.
A method of manufacturing an implantable medical device, comprising the steps of:
- providing a structural framework having a base metallic material;
- partially coating the structural framework with a polymeric coating comprising a copolymer polymerized onto the surface of the structural framework from at least one monomer unit of (—CF2-CFH—) and at least one monomer unit of —CH2-CF2-, wherein at least one monomer has a Glass Transition Temperature (Tg) less than about 95 degrees Celsius, and wherein in homopolymer form, the at least one monomer unit of (—CF2-CFH—) in the copolymer is protonated;
- partially coating the structural framework with a ZnO coating;
- and
- poling the coated structural framework with a desired polarity that carries either a positive charge or a negative charge on the surface of the coated structural framework.
Dependencies are inferred from the claim text.