Patents by Inventor Mats Nygren
Mats Nygren 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: 9101754Abstract: A connector for an implantable medical lead that is electrically and mechanically connectable to an implantable medical device, has a connector pin made of a first conducting material. A tubular insulator made of an insulating material concentrically surrounds at least a portion of the pin. A connector ring made of a second conducting material is concentrically positioned around at least a portion of the insulator. The insulator is connected to the connector ring by spark plasma sintering in the case of an active fixation lead, and is connected to the ring and the pin by spark plasma sintering in the case of a passive fixation lead.Type: GrantFiled: July 24, 2012Date of Patent: August 11, 2015Assignee: ST. JUDE MEDICAL ABInventors: Rolf Hill, Andreas Örnberg, Eva Micski, Henrik Djurling, Mats Nygren
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Patent number: 8781590Abstract: A connector for an implantable medical lead that is electrically and mechanically connectable to an implantable medical device, has a connector pin made of a first conducting material. A tubular insulator made of an insulating material concentrically surrounds at least a portion of the pin. A connector ring made of a second conducting material is concentrically positioned around at least a portion of the insulator. The insulator is connected to the connector ring by spark plasma sintering in the case of an active fixation lead, and is connected to the ring and the pin by spark plasma sintering in the case of a passive fixation lead.Type: GrantFiled: July 24, 2012Date of Patent: July 15, 2014Assignee: St. Jude Medical ABInventors: Rolf Hill, Andreas Ornberg, Eva Micski, Henrik Djurling, Mats Nygren
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Publication number: 20120324728Abstract: A connector for an implantable medical lead that is electrically and mechanically connectable to an implantable medical device, has a connector pin made of a first conducting material. A tubular insulator made of an insulating material concentrically surrounds at least a portion of the pin. A connector ring made of a second conducting material is concentrically positioned around at least a portion of the insulator. The insulator is connected to the connector ring by spark plasma sintering in the case of an active fixation lead, and is connected to the ring and the pin by spark plasma sintering in the case of a passive fixation lead.Type: ApplicationFiled: July 24, 2012Publication date: December 27, 2012Applicant: ST. JUDE MEDICAL ABInventors: Rolf Hill, Andreas Örnberg, Eva Micski, Henrik Djurling, Mats Nygren
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Publication number: 20120290060Abstract: A connector for an implantable medical lead that is electrically and mechanically connectable to an implantable medical device, has a connector pin made of a first conducting material. A tubular insulator made of an insulating material concentrically surrounds at least a portion of the pin. A connector ring made of a second conducting material is concentrically positioned around at least a portion of the insulator. The insulator is connected to the connector ring by spark plasma sintering in the case of an active fixation lead, and is connected to the ring and the pin by spark plasma sintering in the case of a passive fixation lead.Type: ApplicationFiled: July 24, 2012Publication date: November 15, 2012Applicant: ST. JUDE MEDICAL ABInventors: Rolf Hill, Andreas Örnberg, Eva Micski, Henrik Djurling, Mats Nygren
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Patent number: 8250749Abstract: A connector for an implantable medical lead that is electrically and mechanically connectable to an implantable medical device, has a connector pin made of a first conducting material. A tubular insulator made of an insulating material concentrically surrounds at least a portion of the pin. A connector ring made of a second conducting material is concentrically positioned around at least a portion of the insulator. The insulator is connected to the connector ring by spark plasma sintering in the case of an active fixation lead, and is connected to the ring and the pin by spark plasma sintering in the case of a passive fixation lead.Type: GrantFiled: November 14, 2007Date of Patent: August 28, 2012Assignee: St. Jude Medical ABInventors: Rolf Hill, Andreas Örnberg, Eva Micski, Henrik Djurling, Mats Nygren
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Publication number: 20110125277Abstract: A medical implant for application in an articulating surface of a joint, comprising a plate-shaped structure having a first surface and a second surface facing mutually opposite directions, the first surface comprising a first biocompatible metal, metal alloy or ceramic and being devised to form a wear resistant articulate surface configured to face the articulating part of the joint; and the second surface comprising a bioactive ceramic or bioactive glass incorporated into a second metal, metal alloy or ceramic and being devised to form a bone contacting surface configured to face bone structure in the joint; wherein: the first surface and the second surface are adhered by means of a sintered material structure. Possibly the second surface is a sintered mixture having a homogenous microstructure comprising the bioactive ceramic or bioactive glass and the second metal, metal alloy or ceramic.Type: ApplicationFiled: May 6, 2009Publication date: May 26, 2011Applicant: Episurf Medical ABInventors: Mats Nygren, Changming Xu, Leif Ryd, Katarina Flodström, Nina Bake
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Publication number: 20100292744Abstract: An implantable medical lead for mechanical and electrical connection to an implantable medical device. The lead has a ring electrode in connection with its distal end. This ring electrode a coil adapter made of a first conducted material mechanically and electrically connected, directly or indirectly, by spark plasma sintering to an electrode member made of a second conducting material.Type: ApplicationFiled: November 14, 2007Publication date: November 18, 2010Inventors: Rolf HILL, Andreas ORNBERG, Eva MICSKI, Henrik DJURLING, Mats NYGREN
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Publication number: 20100262213Abstract: A connector for an implantable medical lead that is electrically and mechanically connectable to an implantable medical device, has a connector pin made of a first conducting material. A tubular insulator made of an insulating material concentrically surrounds at least a portion of the pin. A connector ring made of a second conducting material is concentrically positioned around at least a portion of the insulator. The insulator is connected to the connector ring by spark plasma sintering in the case of an active fixation lead, and is connected to the ring and the pin by spark plasma sintering in the case of a passive fixation lead.Type: ApplicationFiled: November 14, 2007Publication date: October 14, 2010Inventors: Rolf Hill, Andreas Ornberg, Eva Micski, Henrik Djurling, Mats Nygren
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Patent number: 6110275Abstract: There is disclosed a method of producing, in large volume and at low cost, titanium carbide, nitride and carbonitride whiskers, with preferably submicron diameters, to be used as reinforcing material. The whiskers are suitable for use as a reinforcement material in a wide range of materials, including metals, intermetallics, plastics, ceramics and metallic bonded hard material. Titanium oxide, hydroxide or alkali compounds thereof are mixed with a carbon source with a volatile part which volatiles at temperatures exceeding 500.degree. C. and in an amount to satisfy the stoichiometric requirements of the carbide or nitride. A halogenide salt is used as a volatilization agent for titanium as well as a catalyst able to dissolve Ti plus C and/or N, such as Ni or Co. The reactant powders are blended in some typical manner, e.g., by using a high speed blender so as to intimately mix them.Type: GrantFiled: December 20, 1996Date of Patent: August 29, 2000Assignee: Sandvik ABInventors: Mats Nygren, Mats Johnsson, Niklas Ahlen, Magnus Ekelund
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Patent number: 6033735Abstract: There is disclosed a method of coating cemented carbide inserts at least partly with a layer of at least one iron group metal. When inserts coated with such a layer are brazed to a tool holder, a joint with improved strength is obtained. According to the present method, one or more metal salts of at least one iron group metal containing organic groups are dissolved and complex bound in at least one polar solvent with at least one complex former comprising functional groups in the form of OH or NR.sub.3 (R.dbd.H or alkyl). A soluble carbon source is added to the solution which is subsequently at least partly applied to the cemented carbide inserts by dipping, spraying or painting. The inserts are dried and heat treated in an inert and/or reducing atmosphere. As a result, cemented carbide inserts are obtained at least partly coated with a layer of an iron group metal.Type: GrantFiled: September 18, 1997Date of Patent: March 7, 2000Assignee: Sandvik ABInventors: Stefan Ederyd, Enrico Galli, Mats Nygren, Gunnar Westin, Asa Ekstrand
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Patent number: 5887242Abstract: A method of making a hard constituent powder coated with at least one iron group metal, Me, by dissolving and complex binding at least one of Me.sub.n (NO.sub.3).sub.m and Me.sub.n (SO.sub.4).sub.m and other similar Me.sub.n --X.sub.m compounds containing X-groups with low or no carbon content, preferably Me-nitrates, solely or together with one or more metal salts of at least one iron group metal containing organic groups in at least one polar solvent with at least one complex former comprising functional groups in the form of OH or NR.sub.3, (R=H or alkyl). Hard constituent powder is added to the solution. The solvent is evaporated and remaining powder is heat treated in an inert and/or reducing atmosphere. As a result, coated hard constituent powder is obtained which after addition of a pressing agent can be compacted and sintered according to standard practice.Type: GrantFiled: September 25, 1996Date of Patent: March 23, 1999Assignee: Sandvik ABInventors: Mats Nygren, Gunnar Westin, .ANG.sa Ekstrand
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Patent number: 5853477Abstract: There is disclosed a method of producing, in large volumes and at low cost, Ta, Nb, Zr and Hf carbide, nitride or carbonitride whiskers, preferably submicron, having excellent reinforcing properties, suitable as reinforcement in a wide range of materials, including metals, intermetallics, plastics, ceramics and metallic bonded hard material. Oxides of Ta, Nb, Zr and Hf or alkali compounds thereof in an amount to satisfy the stoichiometric requirements of the desired carbide or nitride are mixed with the carbon source along with an alkali and/or alkali earth metal halogenide as a volatilization agent for the metal and a catalyst for the whisker growth such as Ni and/or Co. The reactant powders are blended in some typical manner using a high speed blender so as to intimately mix them. Finally, the starting material is subjected to nitriding, carbonizing or carbonitriding heat treatments in order to produce the desired whiskers.Type: GrantFiled: December 20, 1996Date of Patent: December 29, 1998Assignees: Sandvik AB, Advanced Industrial MaterialsInventors: R. Tom Coyle, Magnus Ekelund, Mats Nygren, Mats Johnsson
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Patent number: 5851285Abstract: There is disclosed a method of producing whiskers in large volumes and at low cost to be used as reinforcing material. The whiskers are solid solutions between two or more transition metal carbides, nitrides and carbonitrides, (Me.sub.1-X-Y.sub.Me'.sub.X+Y)C.sub.1-Z N.sub.Z, having preferably submicron diameters, where Me' is one or more transition metals other than Me. The whiskers are suitable for use as a reinforcement material in a wide range of materials, including metals, intermetallics, plastics, ceramics and metallic bonded hard material. Transition metal oxides, hydroxides or alkali compounds thereof are mixed with carbon powder. The carbon source is added in an amount to satisfy the stoichiometric requirements of the carbide or nitride. A halogenide salt is used as a volatilization agent for the transition metals and a catalyst such as Ni or Co that is able to dissolve transition metals plus C and/or N. The reactant powders are blended so as to intimately mix them.Type: GrantFiled: December 20, 1996Date of Patent: December 22, 1998Assignee: Sandvik ABInventors: Mats Johnsson, Niklas Ahlen, Mats Nygren, Magnus Ekelund, Gunnar Brandt
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Patent number: 5505902Abstract: A method wherein one or more metal salts of at least one iron group metal containing organic groups are dissolved and complex bound in at least one polar solvent with at least one complex former comprising functional groups in the form of OH or NR.sub.3, (RH.dbd.H or alkyl). Hard constituent powder and, optionally, a soluble carbon source are added to the solution. The solvent is evaporated and the remaining powder is heat treated in an inert and/or reducing atmosphere. As a result, coated hard constituent powder is obtained which after addition of a pressing agent can be compacted and sintered according to standard practice to a body containing hard constituents in a binder phase.Type: GrantFiled: March 29, 1995Date of Patent: April 9, 1996Assignee: Sandvik ABInventors: Udo Fischer, Mats Waldenstrom, Stefan Ederyd, Mats Nygren, Gunnar Westin, Asa Ekstrand