Patents by Inventor Igor Raiko
Igor Raiko has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11628407Abstract: The invention relates to an undulated thermostable hollow fiber membrane of reduced wall thickness, wherein the wall thickness amounts to 20 ?m or greater and 30 ?m or less and the waveform of the hollow fiber membrane exhibits a wavelength in the range of from more than 1 mm and less than 5 mm. In particular, the invention relates to a method for producing an undulated thermostable hollow fiber membrane of lower wall thickness.Type: GrantFiled: March 16, 2018Date of Patent: April 18, 2023Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: Torsten Keller, Roland Sander, Igor Raiko, Christian Finkler
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Publication number: 20200030751Abstract: The invention relates to an undulated thermostable hollow fiber membrane of reduced wall thickness, wherein the wall thickness amounts to 20 ?m or greater and 30 ?m or less and the waveform of the hollow fiber membrane exhibits a wavelength in the range of from more than 1 mm and less than 5 mm. In particular, the invention relates to a method for producing an undulated thermostable hollow fiber membrane of lower wall thickness.Type: ApplicationFiled: March 16, 2018Publication date: January 30, 2020Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: Torsten KELLER, Roland SANDER, Igor RAIKO (Deceased), Christian FINKLER
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Patent number: 9421501Abstract: The present invention relates to a membrane, in particular to a hollow fiber membrane comprising a membrane, comprising at least two layers, wherein the at least two layers each comprise at least one layer forming material comprising at least one polymer and the at least two layers differ from each other with respect to the layer forming material, wherein the at least two layers are at least partly covalently and delamination free bonded to each other. The present invention relates furthermore to a method of production of the said membrane as well as to its use.Type: GrantFiled: December 20, 2011Date of Patent: August 23, 2016Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: Christian Finkler, Rainer Fislage, Torsten Keller, Igor Raiko, Roland Sander
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Patent number: 9149770Abstract: A hollow fiber membrane made of two coextruded layers A and B, wherein layer B has a non-woven type structure having a mesh size of 0.1 to 10 ?m and layer A has a porous structure. A method for producing a membrane according to the invention and the use thereof is also disclosed.Type: GrantFiled: April 21, 2008Date of Patent: October 6, 2015Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: Rainer Fislage, Klaus Heilmann, Torsten Keller, Holger Lichau, Igor Raiko, Roland Sander
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Patent number: 8784664Abstract: The present invention relates to a composite hollow fiber capillary membrane in particular for exploiting the value of dialysate and a method for the production thereof as well as its use in particular in haemo and peritoneal dialysis.Type: GrantFiled: December 30, 2008Date of Patent: July 22, 2014Assignee: Fresenius Medical Care Deutschland GmbHInventors: Rainer Fislage, Igor Raiko
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Publication number: 20120210869Abstract: The present invention relates to a membrane, in particular to a hollow fiber membrane comprising a membrane, comprising at least two layers, wherein the at least two layers each comprise at least one layer forming material comprising at least one polymer and the at least two layers differ from each other with respect to the layer forming material, wherein the at least two layers are at least partly covalently and delamination free bonded to each other. The present invention relates furthermore to a method of production of the said membrane as well as to its use.Type: ApplicationFiled: December 20, 2011Publication date: August 23, 2012Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: Christian Finkler, Rainer Fislage, Torsten Keller, Igor Raiko, Roland Sander
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Publication number: 20110114559Abstract: The present invention relates to a composite hollow fibre capillary membrane in particular for exploiting the value of dialysate and a method for the production thereof as well as its use in particular in haemo and peritoneal dialysis.Type: ApplicationFiled: December 30, 2008Publication date: May 19, 2011Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: Rainer Fislage, Igor Raiko
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Publication number: 20100326915Abstract: The present invention relates to a hollow fiber membrane made of two coextruded layers A and B, wherein layer B has a non-woven type structure having a mesh size of 0.1 to 10 ?m and layer A has a porous structure. The present invention further relates to a method for producing a membrane according to the invention and the use thereof.Type: ApplicationFiled: April 21, 2008Publication date: December 30, 2010Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: RAINER FISLAGE, KLAUS HEILMANN, TORSTEN KELLER, HOLGER LICHAU, IGOR RAIKO, ROLAND SANDER
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Publication number: 20100163488Abstract: A hollow fiber membrane made of two coextruded layers A and B, wherein layer B has a non-woven type structure having a mesh size of 0.1 to 10 ?m and layer A has a porous structure. A method for producing a membrane according to the invention and the use thereof is also disclosed.Type: ApplicationFiled: April 21, 2008Publication date: July 1, 2010Inventors: Rainer Fislage, Klaus Heilmann, Torsten Keller, Holger Lichau, Igor Raiko, Roland Sander
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Patent number: 7713412Abstract: A hollow fiber filter device for dialysis having a housing and an end cap is described. The end cap is attached to an axial end of the housing, and has a curved channel in fluid communication with a fluid port, a fluid chamber having a flow path defined by a plurality of curved members connected to an upper interior surface. The distance between circumferentially adjacent curved members may decrease in a radially outward flow direction.Type: GrantFiled: May 9, 2008Date of Patent: May 11, 2010Assignee: Fresenius Medical Care Deutschland GmnHInventors: Klaus Heilmann, Gerhard Breith, Igor Raiko, Roland Sander, Steffen Fritzsche
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Publication number: 20080230467Abstract: A filter device for mass exchange between two media separated by a membrane providing a low-stress transfer of blood flow from the connection area of the filter device to the fibers of a hollow fiber bundle is disclosed. Relatively uniform utilization of the fibers is provided by a membrane in the form of a hollow fiber bundle whose fiber cavities form a first flow space, with at least one inflow or outflow chamber connected to the first flow space being provided for supplying a medium to the hollow fiber bundle or removing a medium from the hollow fiber bundle. The inflow or outflow chamber is adjacent to an essentially circular or semicircular channel which is designed to be open in the direction of the ends of the hollow fibers and is connected to an inlet or outlet of the filter device.Type: ApplicationFiled: May 9, 2008Publication date: September 25, 2008Inventors: Klaus HEILMANN, Gerhard Breith, Igor Raiko, Roland Sander, Steffen Fritzsche
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Publication number: 20040089598Abstract: A filter device for mass exchange between two media separated by a membrane providing a low-stress transfer of blood flow from the connection area of the filter device to the fibers of a hollow fiber bundle is disclosed. Relatively uniform utilization of the fibers is provided by a membrane in the form of a hollow fiber bundle whose fiber cavities form a first flow space, with at least one inflow or outflow chamber connected to the first flow space being provided for supplying a medium to the hollow fiber bundle or removing a medium from the hollow fiber bundle. The inflow or outflow chamber is adjacent to an essentially circular or semicircular channel which is designed to be open in the direction of the ends of the hollow fibers and is connected to an inlet or outlet of the filter device.Type: ApplicationFiled: September 29, 2003Publication date: May 13, 2004Inventors: Klaus Heilmann, Gerhard Breith, Igor Raiko, Roland Sander, Steffen Fritzsche
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Patent number: 6641731Abstract: A filter device for mass exchange between two media separated by a membrane is disclosed. The device provides for low-stress transfer of blood flow from the connection area of the filter device to the fibers of a hollow fiber bundle. Relatively uniform utilization of the fibers is provided by a membrane in the form of a hollow fiber bundle whose fiber cavities form a first flow space. At least one inflow or outflow chamber is connected to the first flow space for supplying a medium to the hollow fiber bundle or removing a medium from the hollow fiber bundle. The inflow or outflow chamber is adjacent to an essentially circular or semicircular channel which is designed to be open in the direction of the ends of the hollow fibers and is connected to an inlet or outlet of the filter device. The channel is arranged approximately centrally with the hollow fiber bundle.Type: GrantFiled: December 15, 1999Date of Patent: November 4, 2003Assignee: Fresenius Medical Care DeutschlandInventors: Klaus Heilmann, Gerhard Breith, Igor Raiko, Roland Sander, Steffen Fritzsche
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Patent number: 6419825Abstract: A closure element for sterile closure of connections, in particular connections of filter modules for dialysis, hemofiltration or ultrafiltration is described. A closure element with a simple design that provides a reliable seal is formed by having the closure element include a wall with an automatically closing slit-shaped indentation which when closed creates a germ-proof seal. The sealing element is used for sterile closure of connections of medical items, as well as for the medical items themselves.Type: GrantFiled: November 15, 1999Date of Patent: July 16, 2002Assignee: Fresenius Medical Care Deutschland GmbHInventors: Uwe Hahmann, Christian Sauerwald, Klaus Heilmann, Gerhard Breith, Steffen Fritzsche, Igor Raiko