Patent ID: 8382833

Claim:
A soft-tissue implant for implanting in a mammal, the implant releasing an antibiotic substance after implanting, comprising: an implant having a surface, a first antibiotic substance bound to the surface in a first configuration that releases the first antibiotic substance according to a first release rate; a second antibiotic substance bound to the surface in a second configuration that releases the second antibiotic substance according to a second release rate; the first release rate being a short term release rate and the second release rate being a long term release rate; the first antibiotic substance and the second antibiotic substance being released after implanting the implant in a mammal; the first antibiotic substance bound to the surface in a first configuration and the second antibiotic substance bound to the surface in a second configuration each being present at a common surface location of the surface, wherein in the first configuration the first antibiotic substance comprises copper ions present in a polysaccharide complex that is coupled to the surface of the implant, and in the second configuration the second antibiotic substance comprises copper ions penetrated into the surface of the implant.