Acrostak Corp. Bvi

Schneider (europe) A.g.

Endosense Sa

Acrostak Corp Bvi,tortola

Igor Isakovich Papirov

Vladimir Sergeevitch Shokurov

Vitali E Verin

Youri G Popowski

Anatoliy Ivanovitch Pikalov

Sergey Vladimirovitch Sivtsov

Youri Popowski

Anatolij I Pikalov

Sergej V Sivtzov

Anatoily Ivanovitch Pikalov

Sergey Vladimirovitch Svitsov

Vladimir Sergeevich Shokurov

Anatoliy Ivanovich Pikalov

Sergey Vladimirovich Sivtsov

Anatolly Ivanovitch Pikalov

Multi-component magnesium-based alloy consisting essentially of about 1.0-15.0 wt. % of scandium, about 0.1-3.0 wt. % of yttrium, about 1.0-3.0 wt. % of rare-earth metal, about 0.1-0.5 wt. % of zirconium. Purity degree of magnesium base is not less of 99.995 wt. %. Impurities of Fe, Ni and Cu do not exceed 0.001 wt. % of everyone, the contents of other impurity in an alloy does not exceed 0.005 wt. %. The alloy demonstrates an improved combination of strength, deformability and corrosion resistance at room temperature. The alloy does not contain harmful and toxic impurities. The alloy can be used in the various practical applications demanding a combination of high strength, deformability and corrosion resistance, preferably in the field of medicine.

Magnesium-based alloy with improved combination of mechanical and corrosion characteristics

The present invention relates to compositions and structure of deformable alloys on the basis of magnesium with an optimum combination of mechanical properties (strength, plasticity) and a resistance to corrosion, including in vivo. Alloys of the new group possess an excellent formability at room temperature, high corrosion stability in sodium chloride solution, excellent heat resistance and can be used in various technical applications, particularly in vivo as a structural material for stents.

Magnesium-based alloy

The invention relates to a radially expandable multi-layer tubular structure which is intended to be used as a stent and to the production method thereof. The inventive structure comprises an outer layer () and an inner layer () which are solidly connected to one another. One of the aforementioned layers () is provided with hollow channels () through the thickness thereof while the other layer is provided with perforations (). Said channels () can be used to alter the mechanical properties of the stent and to house a medicament for the local treatment of the vessel in which the stent is disposed.

Expandable multi-layer tubular structure and production method thereof

A filament for irradiating a living body has a core material capable of irradiating radioactive radiation clad in a tubular casing of protective material different from the material forming the core. The materials forming the core and casing have a purity not less than 99.5 atomic percent and a grain size not exceeding 30 .mu.m and the outer diameter of the filament is not less than 80 .mu.m.

Irradiating filament and method of making same

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Kharkiv, Ukraine

Igor Isakovich Papirov