PROCESS FOR DEPOSITING PYROCARBON COATINGS IN A FLUIDIZED BED
摘要
Pure unalloyed pyrocarbons having wear resistance suitable for use in pyrocarbon-coated heart valve components and having mechanical properties, such as flexural strength and toughness, superior to commercial silicon-alloyed pyrocarbons are deposited in fluidized bed coaters. Coating conditions are carefully controlled so as to maintain a precise bed size within a defined coating enclosure which will assure a substantially constant surface deposition temperature that in turn assures deposition of homogenous unalloyed pyrocarbons having these improved mechanical properties.
申请公布号
WO9607771(A1)
申请公布日期
1996.03.14
申请号
WO1995US10959
申请日期
1995.08.30
申请人
MEDTRONIC CARBON IMPLANTS, INC.
发明人
ELY, JOHN, L.;HAUBOLD, AXEL, D.;EMKEN, MICHAEL, R.;ACCUNTIUS, JAMES, A.