Patents by Inventor Karl Van Dyk
Karl Van Dyk 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: 7722626Abstract: The invention provides a method of using an apparatus for manipulating matter in a confined or inaccessible space, comprising providing an apparatus having manipulator means at least partly constructed of one or more bent or twisted elongate shape memory alloy members having pseudoelasticity at the intended manipulation temperature, and a hollow housing or cannula capable of holding at least the shape memory alloy member(s) in a relatively straightened state, and actuating means for extending the shape memory alloy member(s) from the housing to manipulate matter within the space and for withdrawing the shape memory alloy member(s) into the housing, the arrangement being such that the shape-memory alloy member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the temperature.Type: GrantFiled: August 4, 2005Date of Patent: May 25, 2010Assignee: Medtronic, Inc.Inventors: Lee M. Middleman, Walter R. Pyka, Michael Buhler, Philippe Poncet, Karl Van Dyk, James Jervis
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Publication number: 20060052799Abstract: The invention provides a method of using an apparatus for manipulating matter in a confined or inaccessible space, comprising providing an apparatus having manipulator means at least partly constructed of one or more bent or twisted elongate shape memory alloy members having pseudoelasticity at the intended manipulation temperature, and a hollow housing or cannula capable of holding at least the shape memory alloy member(s) in a relatively straightened state, and actuating means for extending the shape memory alloy member(s) from the housing to manipulate matter within the space and for withdrawing the shape memory alloy member(s) into the housing, the arrangement being such that the shape-memory alloy member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the temperature.Type: ApplicationFiled: August 4, 2005Publication date: March 9, 2006Applicant: Medtronic Vascular, Inc.Inventors: Lee Middleman, Walter Pyka, Michael Buhler, Philippe Poncet, Karl Van Dyk, James Jervis
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Patent number: 6986774Abstract: The invention provides a method of using an apparatus for manipulating matter in a confined or inaccessible space, comprising providing an apparatus having manipulator means at least partly constructed of one or more bent or twisted elongate shape memory alloy members having pseudoelasticity at the intended manipulation temperature, and a hollow housing or cannula capable of holding at least the shape memory alloy member(s) in a relatively straightened state, and actuating means for extending the shape memory alloy member(s) from the housing to manipulate matter within the space and for withdrawing the shape memory alloy member(s) into the housing, the arrangement being such that the shape-memory alloy member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the temperature.Type: GrantFiled: September 9, 2002Date of Patent: January 17, 2006Assignee: Medtronic, Inc.Inventors: Lee M. Middleman, Walter R. Pyka, Michael Buhler, Philippe Poncet, Karl Van Dyk, James E. Jervis
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Patent number: 6585689Abstract: The present invention provides an aortic catheter having an upstream occlusion member positioned in the ascending aorta between the coronary arteries and the brachiocephalic artery and a downstream anchoring member positioned in the descending aorta, downstream of the aortic arch. The upstream occlusion member is in the form of a narrow, disk-shaped inflatable balloon. The downstream anchoring member may be a larger inflatable balloon or other anchoring structure that provides sufficient friction to prevent migration of the balloon catheter in the upstream or downstream direction. In addition, an arch perfusion lumen, a corporeal perfusion lumen and a cardioplegia lumen are provided for performing selective perfusion and cardioplegic arrest.Type: GrantFiled: September 11, 2000Date of Patent: July 1, 2003Assignee: Cardeon CorporationInventors: John A. Macoviak, Wilfred J. Samson, Steve G. Baker, Karl Van Dyk
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Publication number: 20030009177Abstract: The invention provides a method of using an apparatus for manipulating matter in a confined or inaccessible space, comprising providing an apparatus having manipulator means at least partly constructed of one or more bent or twisted elongate shape memory alloy members having pseudoelasticity at the intended manipulation temperature, and a hollow housing or cannula capable of holding at least the shape memory alloy member(s) in a relatively straightened state, and actuating means for extending the shape memory alloy member(s) from the housing to manipulate matter within the space and for withdrawing the shape memory alloy member(s) into the housing, the arrangement being such that the shape-memory alloy member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the temperature.Type: ApplicationFiled: September 9, 2002Publication date: January 9, 2003Inventors: Lee M. Middleman, Walter R. Pyka, Michael Buhler, Philippe Poncet, Karl Van Dyk, James E. Jervis
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Patent number: 6117105Abstract: The present invention provides an aortic catheter having an upstream occlusion member positioned in the ascending aorta between the coronary arteries and the brachiocephalic artery and a downstream anchoring member positioned in the descending aorta, downstream of the aortic arch. The upstream occlusion member may be an inflatable balloon or a selectively deployable external catheter valve. The downstream anchoring member may be a larger inflatable balloon or other anchoring structure that provides sufficient friction to prevent migration of the balloon catheter in the upstream or downstream direction. In addition, an arch perfusion lumen, a corporeal perfusion lumen and a cardioplegia lumen are provided for performing selective perfusion and cardioplegic arrest.Type: GrantFiled: December 4, 1998Date of Patent: September 12, 2000Assignee: Cardeon CorporationInventors: John F. Bresnaham, John A. Macoviak, Wilfred J. Samson, Steve G. Baker, Karl Van Dyk
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Patent number: 6004330Abstract: The present invention accordingly provides a device or apparatus for manipulating matter in a confined or inaccessible space, comprising manipulator means at least partly constructed of one or more bent or twisted elongate shape memory alloy members having pseudoelasticity at the intended manipulation temperature, and a hollow housing (preferably of elongate tubular form) or cannula capable of holding at least the shape memory alloy member(s) in a relatively straightened state, and actuating means for extending the shape memory alloy member(s) from the housing to manipulate matter within the said space and for withdrawing the shape memory alloy member(s) into the housing, the arrangement being such that the shape-memory alloy member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the said manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the said temperature.Type: GrantFiled: March 3, 1995Date of Patent: December 21, 1999Assignee: Medtronic, Inc.Inventors: Lee M. Middleman, Walter R. Pyka, Michael Buhler, Philippe Poncet, Karl Van Dyk, James E. Jervis
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Patent number: 5904690Abstract: The present invention provides a device or apparatus for manipulating matter in a confined or inaccessible space, comprising manipulator means at least partly constructed of one or more bent or twisted elongate metallic members having pseudoelasticity at the intended manipulation temperature, and a hollow housing (preferably of elongate tubular form) or cannula capable of holding at least the metallic member(s) in a relatively straightened state, and actuating means for extending the metallic member(s) from the housing to manipulate matter within the said space and for withdrawing the metallic member(s) into the housing, the arrangement being such that the metallic member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the said manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the said temperature.Type: GrantFiled: June 7, 1995Date of Patent: May 18, 1999Assignee: Medtronic, Inc.Inventors: Lee M. Middleman, Walter R. Pyka, Michael Buhler, Philippe Poncet, Karl Van Dyk, James E. Jervis, Reza Zadno
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Patent number: 5820628Abstract: A device or apparatus for manipulating matter in a confined or inaccessible space, comprises a manipulator at least partly constructed of one or more bent or twisted elongate metallic members having pseudoelasticity at the intended manipulation temperature, and a hollow housing (preferably of elongate tubular form) or cannula capable of holding at least the metallic member(s) in a relatively straightened state, and an actuator for extending the metallic member(s) from the housing to manipulate matter within the space and for withdrawing the metallic member(s) into the housing, the arrangement being such that the metallic member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the temperature.Type: GrantFiled: June 7, 1995Date of Patent: October 13, 1998Assignee: Medtronic, Inc.Inventors: Lee M. Middleman, Walter R. Pyka, Michael Buhler, Philippe Poncet, Karl Van Dyk, James E. Jervis, Reza Zadno
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Patent number: 5749879Abstract: The present invention provides a device or apparatus for manipulating matter in a confined or inaccessible space, comprising manipulator means at least partly constructed of one or more bent or twisted elongate metallic members having pseudoelasticity at the intended manipulation temperature, and a hollow housing (preferably of elongate tubular form) or cannula capable of holding at least the metallic member(s) in a relatively straightened state, and actuating means for extending the metallic member(s) from the housing to manipulate matter within the said space and for withdrawing the metallic member(s) into the housing, the arrangement being such that the metallic member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the said manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the said temperature.Type: GrantFiled: February 24, 1993Date of Patent: May 12, 1998Assignee: Medtronic, Inc.Inventors: Lee M. Middleman, Walter R. Pyka, Michael Buhler, Philippe Poncet, Karl van Dyk, James E. Jervis, Reza Zadno
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Patent number: 5720754Abstract: The present invention accordingly provides a device or apparatus for manipulating matter in a confined or inaccessible space, comprising manipulator means at least partly constructed of one or more bent or twisted elongate shape memory alloy members having pseudoelasticity at the intended manipulation temperature, and a hollow housing (preferably of elongate tubular form) or cannula capable of holding at least the shape memory alloy member(s) in a relatively straightened state, and actuating means for extending the shape memory alloy member(s) from the housing to manipulate matter within the said space and for withdrawing the shape memory alloy member(s) into the housing, the arrangement being such that the shape-memory alloy member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the said manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the said temperature.Type: GrantFiled: April 28, 1995Date of Patent: February 24, 1998Assignee: Medtronic, Inc.Inventors: Lee M. Middleman, Walter R. Pyka, Michael Buhler, Philippe Poncet, Karl Van Dyk, James E. Jervis
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Patent number: 5681331Abstract: A surgical instrument facilitates tying of a knot in a length of suture material at a remote surgical location. The instrument is comprised of a rod having a length of suture wrapped over the rod in a particular pattern. A needle may be secured to a free end of the suture and the pattern of wrapping the suture on the rod enables loops of suture to move off the rod end and over the needle to form a knot in the suture.Type: GrantFiled: January 24, 1995Date of Patent: October 28, 1997Inventors: Roger A. de la Torre, James Stephen Scott, James E. Jervis, Kenneth H. Mollenauer, Karl Van Dyk, George D. Hermann
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Patent number: 5632746Abstract: The present invention provides a device or apparatus for manipulating matter in a confined or inaccessible space, comprising manipulator means at least partly constructed of one or more bent or twisted elongate shape memory alloy members having pseudoelasticity at the intended manipulation temperature, and a hollow housing (preferably of elongate tubular form) or cannula capable of holding at least the shape memory alloy member(s) in a relatively straightened state, and actuating means for extending the shape memory alloy member(s) from the housing to manipulate matter within the said space and for withdrawing the shape memory alloy member(s) into the housing, the arrangement being such that the shape-memory alloy member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the said manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the said temperature.Type: GrantFiled: February 28, 1992Date of Patent: May 27, 1997Assignee: Medtronic, Inc.Inventors: Lee M. Middleman, Walter R. Pyka, Michael Buhler, Philippe Poncet, Karl van Dyk, James E. Jervis, Reza Zadno
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Patent number: 5601572Abstract: The present invention provides a device or apparatus for manipulating matter in a confined or inaccessible space, comprising manipulator means at least partly constructed of one or more bent or twisted elongate metallic members having pseudoelasticity at the intended manipulation temperature, and a hollow housing (preferably of elongate tubular form) or cannula capable of holding at least the metallic member(s) in a relatively straightened state, and actuating means for extending the metallic member(s) from the housing to manipulate matter within the said space and for withdrawing the metallic member(s) into the housing, the arrangement being such that the metallic member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the said manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the said temperature.Type: GrantFiled: June 7, 1995Date of Patent: February 11, 1997Assignee: Raychem CorporationInventors: Lee M. Middleman, Walter R. Pyka, Michael Buhler, Philippe Poncet, Karl Van Dyk, James E. Jervis, Reza Zadno
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Patent number: 5527323Abstract: A surgical instrument facilitates tying of a knot in a length of suture material at a remote surgical location. The instrument is comprised of an inner rod having a length of suture wrapped over the rod in a particular pattern. A needle may be secured to a free end of the suture and the pattern of wrapping the suture on the rod enables loops of suture to move off the rod end and over the needle to form a knot in the suture. The inner rod is received in an interior bore of an outer rod for manually controlled reciprocating movement therein. The inner rod is manually retracted into the interior bore of the outer rod to cause the outer rod to move the loops of suture off the inner rod end and over the needle in forming a knot in the suture.Type: GrantFiled: July 20, 1994Date of Patent: June 18, 1996Assignee: General Surgical Innovations, Inc.Inventors: James E. Jervis, Kenneth H. Mollenauer, Karl Van Dyk, George D. Hermann, Roger A. de la Torre, James S. Scott
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Patent number: 5486183Abstract: The present invention accordingly provides a device or apparatus for manipulating matter in a confined or inaccessible space, comprising manipulator means at least partly constructed of one or more bent or twisted elongate shape memory alloy members having pseudoelasticity at the intended manipulation temperature, and a hollow housing (preferably of elongate tubular form) or cannula capable of holding at least the shape memory alloy member(s) in a relatively straightened state, and actuating means for extending the shape memory alloy member(s) from the housing to manipulate matter within the said space and for withdrawing the shape memory alloy member(s) into the housing, the arrangement being such that the shape-memory alloy member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the said manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the said temperature.Type: GrantFiled: October 9, 1991Date of Patent: January 23, 1996Assignee: Raychem CorporationInventors: Lee M. Middleman, Walter R. Pyka, Michael Buhler, Philippe Poncet, Karl Van Dyk, James E. Jervis
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Patent number: 5254130Abstract: A surgical device comprising(a) a tubular housing having a longitudinal bore extending therethrough,(b) a first elongate member extending through the longitudinal bore of the housing, and having a proximal and a distal segment, where at least part of the distal segment comprises an elastic material, especially a super elastic material, and wherein the distal segment assumes a first shape when extended from the longitudinal bore, and a second shape when withdrawn into the bore,(c) a second elongate member also having a proximal and a distal segment, the second elongate member extending substantially parallel to the first elongate member so that it is moved by the first elongate member, when the first elongate member changes from its first to its second shape and vice versa, the second elongate member being rotatable relative to, and substantially about, the axis of the first elongate member, and(d) an operating head secured to the distal segment of the second elongate member so that it(i) is moved with the secType: GrantFiled: April 13, 1992Date of Patent: October 19, 1993Assignee: Raychem CorporationInventors: Philippe Poncet, Karl van Dyk