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Title: Production of porous coating on a prosthesis

Abstract

Preselected surface areas of a prosthesis are covered by a blend of matching primary metallic particles and expendable particles. The particles are compressed and heated to assure that deformation and metallurgical bonding occurs between them and between the primary particles and the surface boundaries of the prosthesis. Porosity is achieved by removal of the expendable material. The result is a coating including discrete bonded particles separated by a network of interconnected voids presenting a homogeneous porous coating about the substrate. It has strength suitable for bone implant usage without intermediate adhesives, and adequate porosity to promote subsequent bone ingrowth.

Inventors:
 [1]
  1. Richland, WA
Issue Date:
Research Org.:
Battelle Memorial Institute, Columbus, OH (United States)
OSTI Identifier:
866151
Patent Number(s):
4644942
Assignee:
Battelle Development Corporation (Richland, WA)
Patent Classifications (CPCs):
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61F - FILTERS IMPLANTABLE INTO BLOOD VESSELS
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
production; porous; coating; prosthesis; preselected; surface; covered; blend; matching; primary; metallic; particles; expendable; compressed; heated; assure; deformation; metallurgical; bonding; occurs; boundaries; porosity; achieved; removal; material; result; including; discrete; bonded; separated; network; interconnected; voids; homogeneous; substrate; strength; suitable; bone; implant; usage; intermediate; adhesives; adequate; promote; subsequent; ingrowth; preselected surface; selected surface; metallic particles; porous coating; metallurgical bond; bone implant; /623/29/419/427/428/

Citation Formats

Sump, Kenneth R. Production of porous coating on a prosthesis. United States: N. p., 1987. Web.
Sump, Kenneth R. Production of porous coating on a prosthesis. United States.
Sump, Kenneth R. Thu . "Production of porous coating on a prosthesis". United States. https://www.osti.gov/servlets/purl/866151.
@article{osti_866151,
title = {Production of porous coating on a prosthesis},
author = {Sump, Kenneth R},
abstractNote = {Preselected surface areas of a prosthesis are covered by a blend of matching primary metallic particles and expendable particles. The particles are compressed and heated to assure that deformation and metallurgical bonding occurs between them and between the primary particles and the surface boundaries of the prosthesis. Porosity is achieved by removal of the expendable material. The result is a coating including discrete bonded particles separated by a network of interconnected voids presenting a homogeneous porous coating about the substrate. It has strength suitable for bone implant usage without intermediate adhesives, and adequate porosity to promote subsequent bone ingrowth.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}

Patent:

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