A biological implant is implantable in a base being a part of a living organism. The implant includes an implant body including at least an outer circumferential surface containing a titanium alloy. The implant body is implantable in the base. Based on a first curve indicating a profile of the surface of the implant body obtained with a measurement length of 25.4 .Math.m and a second curve obtained by removing a long-wavelength component from the first curve at a cutoff value of 5 .Math.m in image processing performed on an image of a cut surface of the implant body perpendicular to the outer circumferential surface of the implant body, an arithmetic mean roughness value as a surface roughness value Ra of the outer circumferential surface calculated using the second curve is greater than or equal to 0.2 .Math.M.

A biological implant is implantable in a base being a part of a living organism. The implant includes an implant body including at least an outer circumferential surface containing a titanium alloy. The implant body is implantable in the base. Based on a first curve indicating a profile of the surface of the implant body obtained with a measurement length of 25.4 .Math.m and a second curve obtained by removing a long-wavelength component from the first curve at a cutoff value of 5 .Math.m in image processing performed on an image of a cut surface of the implant body perpendicular to the outer circumferential surface of the implant body, an arithmetic mean roughness value as a surface roughness value Ra of the outer circumferential surface calculated using the second curve is greater than or equal to 0.2 .Math.M.

An antibacterial three-dimensional porous bone implant material. The antibacterial three-dimensional porous bone implant material comprises: a three-dimensional porous bone implant material; and an in-situ growth film layer in-situ growing on the surface of the three-dimensional porous bone implant material, wherein the in-situ growth film layer comprises a functional substance and an antibacterial substance, and the antibacterial substance comprises any one or more of zinc ions, copper ions or silver ions. The in-situ growth film layer has an antibacterial effect. The macro pore size and the micro pore size of the antibacterial three-dimensional porous bone implant material coexist, micro pores in a micro-arc oxidation film layer on a porous wall can provide anchoring points for bone growth, and thus, the implant material in the early stage of implantation can have an antibacterial function and the biologically active functions of bone growth and bone induction.

An antibacterial three-dimensional porous bone implant material. The antibacterial three-dimensional porous bone implant material comprises: a three-dimensional porous bone implant material; and an in-situ growth film layer in-situ growing on the surface of the three-dimensional porous bone implant material, wherein the in-situ growth film layer comprises a functional substance and an antibacterial substance, and the antibacterial substance comprises any one or more of zinc ions, copper ions or silver ions. The in-situ growth film layer has an antibacterial effect. The macro pore size and the micro pore size of the antibacterial three-dimensional porous bone implant material coexist, micro pores in a micro-arc oxidation film layer on a porous wall can provide anchoring points for bone growth, and thus, the implant material in the early stage of implantation can have an antibacterial function and the biologically active functions of bone growth and bone induction.

An implant intended to be at least partially implanted into a bone by means of an implant part having an endosseous surface, wherein said endosseous surface comprises at least one zone having a surface topography exhibiting: an arithmetic mean peak curvature parameter (Spc) less than or equal to 1 μm.sup.1, a density of peaks parameter (Spd) greater than or equal to 0.020 μm.sup.−2.

An implant intended to be at least partially implanted into a bone by means of an implant part having an endosseous surface, wherein said endosseous surface comprises at least one zone having a surface topography exhibiting: an arithmetic mean peak curvature parameter (Spc) less than or equal to 1 μm.sup.1, a density of peaks parameter (Spd) greater than or equal to 0.020 μm.sup.−2.

A method of incorporating silver and/or copper into a biomedical implant includes: providing an implant having an outer surface; depositing silver and/or copper onto the outer surface of the implant; diffusing the silver and/or copper into a subsurface zone adjacent the outer surface; and oxidizing or anodizing the implant after the diffusion step to form an oxidized or anodized layer that contains at least some amount of elemental silver, elemental copper or silver or copper ions or compounds.

A method of incorporating silver and/or copper into a biomedical implant includes: providing an implant having an outer surface; depositing silver and/or copper onto the outer surface of the implant; diffusing the silver and/or copper into a subsurface zone adjacent the outer surface; and oxidizing or anodizing the implant after the diffusion step to form an oxidized or anodized layer that contains at least some amount of elemental silver, elemental copper or silver or copper ions or compounds.

A system and method for altering bone growth on and within an orthopedic implant comprising an implant body, wherein the implant body comprises an exterior surface and an interior surface defining an internal cavity of the implant body, a plurality of electrodes, wherein each electrode is at least partially embedded in the implant body, and comprises at least, a first set of the plurality of electrodes 116, composed of a first material, and a second set of the plurality of electrodes, composed of a second material; and a control system, comprising a processor and circuitry that connects to the plurality of electrodes, wherein the processor, through operating modes, provides machine instructions to control direction and magnitude of current traveling through each electrode from the plurality of electrodes; and a power system, comprising a power source and circuitry that provides electrical power for function of the plurality of electrodes.

Disclosed is a medical device comprising a porous structure, wherein a configuration of the porous structure varies in dependence on a load applied to the porous structure, such that the porous structure has a first configuration when the load is of a first magnitude, and has a second configuration when the load is of a second magnitude greater than the first magnitude. The porous structure comprises a first surface portion and a second surface portion. The first surface portion is disengaged from the second surface portion when the porous structure has the first configuration, and is engaged with the second surface portion when the porous structure has the second configuration.