METHOD AND APPARATUS FOR FORMING POROUS METAL IMPLANTS
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Accused Products
Abstract
A method for providing a porous metal implant. A mixture of a biocompatible metal, a spacing agent, and a binder is provided. The mixture is formed into a shaped the spacing agent is removed to form a plurality of pores in the implant. A shaped porous metal implant is also provided.
55 Citations
46 Claims
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1-36. -36. (canceled)
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37. A method for preparing a porous metal implant comprising:
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a. preparing a mixture comprising; i. a biocompatible metal powder comprising a metal selected from the group consisting of titanium cobalt, chromium, iron and mixtures thereof; ii. a spacing agent selected from the group consisting of hydrogen peroxide, urea, ammonium carbonate, ammonium bicarbonate, ammonium carbamate, calcium hydrogen phosphate, naphthalene, and mixtures thereof; and iii. a non-polar liquid binder comprising d-limonene; b. forming the mixture into a shape; and c. heating the mixture so as to remove the spacing agent and sinter the metal powder. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46)
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Specification