A NEW MODEL TO TEST PLATELET-ADHESION UNDER DYNAMIC CONDITIONS - APPLICATION TO THE EVALUATION OF A TITANIUM NITRIDE COATING

被引：21
作者：
DION, I
BAQUEY, C
HAVLIK, P
MONTIES, JR
机构：
[1] TERACOR,TOULON,FRANCE
[2] UNIV AIX MARSEILLE 2,LRC,F-13007 MARSEILLE,FRANCE
来源：
INTERNATIONAL JOURNAL OF ARTIFICIAL ORGANS | 1993年 / 16卷 / 07期
关键词：
PLATELET RETENTION TEST; TITANIUM NITRIDE; BIOMATERIALS; LEFT VENTRICULAR ASSIST DEVICE;
D O I：
10.1177/039139889301600708
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
In order to evaluate under dynamic circumstances the in vitro platelet adhesion induced by rigid materials such as ceramic coatings deposited on selected substrates, a new model simulating a tube has been designed. In vitro platelet adhesion was assessed with this new mode/: the material was titanium nitride (TiN) deposited on Ti6A14V (TA6V) titanium alloy by a physical vapor deposition (PVD) process. The results were compared to those obtained with complete titanium carbide (TiC) graphite tubes coated with TiN by a chemical vapor deposition (CVD) process. The difference observed (less than 25%) in favour of the new system, could be due to the better surface state of the construction materials of this system. In fact it is a systemic error. However TiN confirms its good performance as a blood-contacting biomaterial.
引用
收藏
页码：545 / 550
页数：6
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