Patents Assigned to Acrostak Corp. BVI
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Patent number: 8815148Abstract: 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.Type: GrantFiled: March 15, 2007Date of Patent: August 26, 2014Assignee: Acrostak Corp. BVIInventors: Youri Popowski, Igor Isakovich Papirov, Vladimir Sergeevitch Shokurov, Anatoliy Ivanovitch Pikalov, Sergey Vladimirovitch Sivtsov
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Patent number: 8696539Abstract: A positioning device (1) for treating the inner walls of a resection cavity, which was created by surgically removing of at least a portion of a tumor in a living body, characterized by the fact that the material of the device (1), part(s) of the device and accessories of the device (1) is (are) biologically degradable in the living body. Further a surgical procedure for treating a tumor in a living body of at least one of the former claims, comprising: (a) surgically removing at least a portion of said tumor thereby creating a cavity in the living body's remaining tissue; (b) placing a biodegradable treatment device in said cavity so that the degradable device occupies said cavity; and (c) treating tissue surrounding said cavity by means of said positioning device.Type: GrantFiled: January 7, 2006Date of Patent: April 15, 2014Assignee: Acrostak Corp. BVIInventors: Youri Popowski, Erwin Berger
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Publication number: 20130345628Abstract: The present disclosure relates to a catheter having a longitudinal guidewire lumen defined by a first tube configured for an over-the-wire or rapid-exchange mode of operation, the wall of the first tube provided with an expansion member that is a sub-region of the wall of the first tube provided with an expandable material. An inflation lumen extending from the proximal end towards the distal end of the shaft is in fluidic contact with the expansion member, the member being configured to expand or contract responsive to pressure in the inflation lumen. The wall of the first tube may be formed from a helically coiled wire or helically braided wire having a helix angle of 60 degrees or more which tubing is resistive to radial pressure applied in the inflation lumen.Type: ApplicationFiled: February 16, 2012Publication date: December 26, 2013Applicant: ACROSTAK CORP BVI,TORTOLAInventors: Erwin Berger, Youri Popowski
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Publication number: 20120215301Abstract: The present invention relates to biodegradable implantable medical device, in particular an endoprosthesis body formed at least partly from a constructional material comprising deformable super-pure magnesium or alloy thereof further comprising one or more super-pure alloying elements. The constructional material has a high formability at room temperature, excellent corrosion stability in vivo, an optimum combination of mechanical properties (strength, plasticity) ideally suited for biodegradable endoprosthesises, particularly stents, as such and for various other technical applications.Type: ApplicationFiled: October 29, 2010Publication date: August 23, 2012Applicant: Acrostak Corp BVI, TortolaInventors: Igor Isakovich Papirov, Anatoliy Ivanovich Pikalov, Sergey Vladimirovich Sivtsov, Vladimir Sergeevich Shokurov, Youri Popowski
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Patent number: 8202477Abstract: 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.Type: GrantFiled: May 5, 2008Date of Patent: June 19, 2012Assignee: Acrostak Corp. BVIInventors: Igor Isakovich Papirov, Anatoliy Ivanovitch Pikalov, Vladimir Sergeevitch Shokurov, Sergey Vladimirovitch Sivtsov
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Publication number: 20100049299Abstract: 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.Type: ApplicationFiled: March 15, 2007Publication date: February 25, 2010Applicant: Acrostak Corp. BVIInventors: Youri Popowski, Igor Isakovich Papirov, Shokurov Vladimir Sergeevitch, Anatoliy Ivanovitch Pikalov, Sergey Vladimirovitch Sivtsov
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Publication number: 20090306453Abstract: The invention relates to an implant for treating a cavity that is created as a result of a resection, the implant being modular and the modules being interconnectable.Type: ApplicationFiled: January 8, 2007Publication date: December 10, 2009Applicant: ACROSTAK CORP. BVIInventors: Youri Popowski, Erwin Berger