Porous tissue ingrowth structure
AssigneeSMed-TA/TD, LLC
InventorsPaul S. Nebosky, Gregory C. Stalcup, Troy D. Knapp
Life of this patent
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Abstract
A three-dimensional scaffold for a medical implant includes a plurality of layers bonded to each other. Each layer has a top surface and a bottom surface and a plurality of pores extending from the top surface to the bottom surface. Each layer has a first pore pattern of the pores at the top surface and a different, second pore pattern at the bottom surface. Adjacent surfaces of at least three adjacent layers have a substantially identical pore pattern aligning to interconnect the pores of the at least three adjacent layers to form a continuous porosity through the at least three adjacent said layers.
Claims21
A three-dimensional scaffold for a medical implant, the scaffold comprising a plurality of layers bonded to each other and each said layer having a top surface and a bottom surface, each of said layers having a plurality of pores extending from said top surface to said bottom surface, each said layer having a first pore pattern of said plurality of pores at said top surface and a different, second pore pattern at said bottom surface, wherein adjacent said surfaces of at least three adjacent said layers having a substantially identical pore pattern aligning to interconnect said plurality of pores of said at least three adjacent layers and form a continuous porosity through said at least three adjacent said layers.
A medical implant, comprising:
- a main body;
- and
- at least one scaffold coupled with said main body, said at least one scaffold including a plurality of layers bonded to each other, each said layer having a top surface and a bottom surface and a plurality of pores extending from said top surface to said bottom surface, each said layer having a first pore pattern of said plurality of pores at said top surface and a different, second pore pattern at said bottom surface, wherein adjacent said surfaces of at least three adjacent said layers having a substantially identical pore pattern aligning to interconnect said plurality of pores of said at least three layers and form a continuous porosity through said at least three adjacent said layers.
A method of manufacturing a scaffold for a medical implant, the method comprising the steps of:
- providing a plurality of layers of a biocompatible material having a top surface and a bottom surface;
- creating a plurality of pores in said plurality of layers of biocompatible material such that each of said layers has a plurality of pores extending from said top surface to said bottom surface, a first pore pattern of said plurality of pores at said top surface of each of said layers being different than a second pore pattern of said bottom surface of each of said layers;
- and
- bonding said plurality of layers together such that adjacent said surfaces of at least three adjacent said layers have a substantially identical pore pattern aligning to interconnect said plurality of pores of said at least three layers forming a continuous porosity through said at least three adjacent said layers.
Dependencies are inferred from the claim text.