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US 7,678,325 B2Granted
Use of a metal and Sn as a solvent material for the bulk crystallization and sintering of diamond to produce biocompatbile biomedical devices
AssigneeDiamicron, Inc.
InventorClayton F. Gardinier
Life of this patent
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Abstract
A combination of a metal and Sn may be used as a solvent material for bulk crystallization and sintering of single crystal diamond to form a biocompatible and corrosion-resistant biomedical device.
Claims17
A method for making a biocompatible and corrosion-resistant biomedical device comprising the steps of:
- selecting a metal,
- selecting a quantity of single diamond crystal,
- combining said metal with Sn for use as a solvent-catalyst metal in bulk crystallizing said single diamond crystal through a high pressure and high temperature sintering process,
- exposing said metal, said Sn and said single crystal diamond to high pressure and high temperature,
- permitting said combination of Sn and said metal to serve as a solvent-catalyst metal for said diamond during sintering,
- removing said high pressure and permitting said diamond to cool and solidify as a sintered polycrystalline diamond compact.
3 more elements
A method for making a biocompatible and corrosion-resistant biomedical device comprising the steps of:
- combining Sn with a first row transition metal from the periodic table of the elements,
- exposing said Sn, said first row transition metal and single crystal diamond to a high temperature and high pressure environment, and
- permitting said combination of Sn and said first row transition metal to serve as a solvent-catalyst metal in sintering said single crystal diamond into a polycrystalline diamond compact.
A biomedical device comprising:
- a sintered polycrystalline diamond compact, the compact comprising:
- diamond crystals;
- and
- a solvent metal, the solvent metal comprising a mixture of Sn and another metal;
- and
- wherein the diamond and solvent metal are sintered together under high temperature and pressure to form a sintered compact.
3 more elements
Dependencies are inferred from the claim text.