Integran Technologies Inc.

Fred Smith

Klaus Tomantschger

Gino Palumbo

Jonathan McCrea

Iain Brooks

Peter Keng-Yu Lin

Glenn Hibbard

Johnathan Mccrea

Variable property deposit, at least partially of fine-grained metallic material, optionally containing solid particulates dispersed therein, is disclosed. The electrodeposition conditions in a single plating cell are suitably adjusted to once or repeatedly vary at least one property in the deposit direction. In one embodiment denoted multidimension grading, property variation along the length and/or width of the deposit is also provided. Variable property metallic material deposits containing at least in part a fine-grained microstructure and variable property in the deposit direction and optionally multidimensionally, provide superior overall mechanical properties compared to monolithic fine-grained (average grain size: 2 nm-5 micron), entirely coarse-grained (average grain size: &#x3e;20 micron) or entirely amorphous metallic material deposits.

Variable property electrodepositing of metallic structures

Metallic stents which have a randomly oriented microstructure, and possess quasi-isotropic mechanical and physical properties are disclosed. The novel stents can be 'tailor-made' to mimic the geometry of the blood vessel(s) at the deployment site and can be designed to treat coronary artery disease at the point where blood vessels branch. The metallic materials of choice are ductile, corrosion resistant and exhibit little crystallographic texture. The novel stents can be produced from a metallic precursor which is quasi-isotropic and exhibits little texture by processing means, such as machining, which do not reintroduce texture. Alternatively, quasi-isotropic and low texture stents are achieved by suitable post-processing of conventionally fabricated stent materials.

Low texture, quasi-isotropic metallic stent

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Hannon, Canada

Fred Smith