Implant coating for control of tissue/implant interactions
First Claim
1. An implant having a tissue/implant interface, comprising an implant having an outer surface and a bioactive polymer layer self-assembled with metal cations, wherein the self-assembled polymer layer is adjacent to at least a portion of the outer surface, and wherein the self-assembled bioactive polymer layer provides at least one tissue response modifier to the site of implantation in a quantity effective to control tissue response at the site of implantation.
3 Assignments
0 Petitions
Accused Products
Abstract
A tissue/implant interface, comprising an implant and a bioactive polymer layer adjacent at least a portion of the outer surface of the implant, wherein the polymer layer contains at least one tissue response modifier covalently attached to the polymer layer or entrapped within the polymer layer in a quantity effective to control the tissue response at the site of implantation. Preferably, the at least one tissue response modifier controls inflammation, fibrosis, and/or neovascularization. Exemplary tissue response modifiers include, but are not limited to, steroidal and non-steroidal anti-inflammatory agents, anti-fibrotic agents, anti-proliferative agents, cytokines, cytokine inhibitors, neutralizing antibodies, adhesive ligands, and combinations thereof. Use of the various combinations of tissue response modifiers with bioactive polymers provides a simple, flexible and effective means to control the implant/tissue interphase, improving implant lifetime and function.
517 Citations
43 Claims
- 1. An implant having a tissue/implant interface, comprising an implant having an outer surface and a bioactive polymer layer self-assembled with metal cations, wherein the self-assembled polymer layer is adjacent to at least a portion of the outer surface, and wherein the self-assembled bioactive polymer layer provides at least one tissue response modifier to the site of implantation in a quantity effective to control tissue response at the site of implantation.
- 25. An implant having a tissue/implant interface, comprising an implant having an outer surface and a self-assembled poly(anion)/poly(cation) film, wherein the film comprises at least one poly(anion) layer and one poly(cation) layer, the film being adjacent to at least a portion of the outer surface, and wherein the film provides at least one tissue response modifier to the site of implantation in a quantity effective to control tissue response at the site of implantation.
Specification