Patents by Inventor Kurt Amplatz
Kurt Amplatz 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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Publication number: 20090018562Abstract: The present invention provides an improved vascular occlusion device having improved flexibility and retention of the type fabricated from braided tubular metal fabric having an expanded preset configuration and an elongated collapsed reduced diameter configuration for delivery through a catheter to a treatment site and shaped to create an occlusion of an abnormal opening in a body organ or vessel, the woven metal fabric having a memory property whereby the medical device tends to return to said expanded preset configuration when unconstrained. The device further including at least one disk portion adjacent a body cylindrical portion formed from the fabric and having a transition diameter between the disk and cylindrical portion, significantly smaller than the diameter of the disk and the diameter of the cylindrical portion.Type: ApplicationFiled: July 12, 2007Publication date: January 15, 2009Applicant: AGA Medical CorporationInventors: Kurt Amplatz, Xiaoping Gu, John Oslund, Daniel O. Adams
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Publication number: 20080200945Abstract: Embodiments of the present invention provide devices and methods for treating abnormalities. For example, a device according to one embodiment includes a plurality of planes of occlusion, at least one plane of occlusion comprising a plurality of layers of occlusive material. The device is configured to at least partially occlude an abnormality.Type: ApplicationFiled: February 29, 2008Publication date: August 21, 2008Inventors: Kurt Amplatz, Matt Glimsdale, Jana Santer, Xiaoping Gu, John Oslund
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Publication number: 20070265656Abstract: A collapsible medical device and associated methods of occluding an abnormal opening in, for example, a body organ, wherein the medical device is shaped from plural layers of a heat-treatable metal fabric. Each of the fabric layers is formed from a plurality of metal strands and the assembly is heat-treated within a mold in order to substantially set a desired shape of the device. By incorporating plural layers in the thus-formed medical device, the ability of the device to rapidly occlude an abnormal opening in a body organ is significantly improved.Type: ApplicationFiled: June 21, 2007Publication date: November 15, 2007Applicant: AGA Medical CorporationInventors: Kurt Amplatz, Matt Glimsdale, Jana Santer, Derek Wise, John Oslund, Kent Anderson, Daniel Adams
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Publication number: 20070168018Abstract: A stent/graft especially designed to be used in a minimally invasive surgical procedure for treating an abdominal aortic aneurysm (AAA) comprises an innermost tubular structure of a length (L1) formed by braiding a relatively few strands of shape memory alloy wire. The pick and pitch of the braid are such as to provide relative large fenestrations in the tubular wall. A portion of the innermost tubular structure of a length L2<L1 is surrounded by a further braided tubular structure having relatively many strands that occlude the fenestrations of the innermost tubular structure. The composite structure can be stretched to reduce the outer diameter of the stent/graft, allowing it to be drawn into a lumen of a delivery catheter. The catheter can then be advanced through the vascular system to the site of the AAA and then ejected, allowing it to self-expand with the portion L2 bridging the aneurysm.Type: ApplicationFiled: January 13, 2006Publication date: July 19, 2007Applicant: AGA Medical CorporationInventors: Kurt Amplatz, John Oslund, Patrick Russo
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Publication number: 20070168019Abstract: A catheter deliverable stent/graft especially designed to be used in a minimally invasive surgical procedure for treating a variety of vascular conditions such as aneurysms, stenotic lesions and saphenous vein grafts, comprises an innermost tubular structure and at least one further tubular member in coaxial arrangement. In one embodiment, the innermost tubular structure is of a length (L1) and is formed by braiding a relatively few strands of highly elastic metallic alloy. The pick and pitch of the braid are such as to provide relative large fenestrations in the tubular wall that permit blood flow through the wall and provide the primary radial support structure. A portion of the innermost tubular structure of a length L1 is surrounded by a further braided tubular structure having relatively many strands that substantially inhibit blood flow through the fenestrations of the innermost tubular structure.Type: ApplicationFiled: January 17, 2007Publication date: July 19, 2007Applicant: AGA Medical CorporationInventors: Kurt Amplatz, John C. Oslund, Patrick Russo, Xiaoping Gu
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Publication number: 20070118207Abstract: The present invention provides a delivery mechanism for percutaneously routing a stent or graft through the vascular system and procedures for addressing an aneurysm or an otherwise damaged vessel. The delivery system includes an outer tubular guide catheter 20, an inner tubular delivery (pusher) catheter 14 coaxially disposed and slidable relative to the outer guide catheter and an elongated flexible wire or cable 26 that is coaxially insertable through the lumen of the inner tubular catheter and that has a frusto-conical bead affixed at the distal end thereof which is sized to at least partially fit within the lumen of the inner pusher catheter when a proximally directed tension force is applied between the elongated flexible wire or cable 26 with respect to the pusher catheter 14.Type: ApplicationFiled: January 17, 2007Publication date: May 24, 2007Applicant: AGA Medical CorporationInventors: Kurt Amplatz, John Oslund, Patrick Russo
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Publication number: 20060253184Abstract: The present invention provides a delivery mechanism for percutaneously routing a stent or graft through the vascular system and procedures for addressing an aneurysm or an otherwise damaged vessel. The delivery system includes an outer tubular guide catheter 20, an inner tubular delivery (pusher) catheter 14 coaxially disposed and slidable relative to the outer guide catheter and an elongated flexible wire or cable 26 that is coaxially insertable through the lumen of the inner tubular catheter and that has a frusto-conical bead affixed at the distal end thereof which is sized to at least partially fit within the lumen of the inner pusher catheter when a proximally directed tension force is applied between the elongated flexible wire or cable 26 with respect to the pusher catheter 14.Type: ApplicationFiled: May 4, 2005Publication date: November 9, 2006Inventor: Kurt Amplatz
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Publication number: 20060247680Abstract: Implantable occlusion devices that include one or more flanges extending from a tubular body are disclosed. The flange or flanges may assist in retention of the device within a vessel, cavity, appendage, etc. At least one flange on the occlusion device may include a concave surface proximate one end of a body. Because of the shape of the flange, e.g., its concavity, the occlusion device may resist dislocation due to e.g., the forces generated within the left atrial appendage during atrial filbrillation.Type: ApplicationFiled: June 27, 2006Publication date: November 2, 2006Applicant: AGA Medical CorporationInventors: Kurt Amplatz, Gary Thill, Pat Russo, Xiaoping Gu, Jana Santer
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Publication number: 20060241690Abstract: A collapsible medical device and associated methods of occluding an abnormal opening in, for example, a body organ, wherein the medical device is shaped from plural layers of a heat-treatable metal fabric. Each of the fabric layers is formed from a plurality of metal strands and the assembly is heat-treated within a mold in order to substantially set a desired shape of the device. By incorporating plural layers in the thus-formed medical device, the ability of the device to rapidly occlude an abnormal opening in a body organ is significantly improved.Type: ApplicationFiled: June 23, 2006Publication date: October 26, 2006Applicant: AGA Medical CorporationInventors: Kurt Amplatz, Xiaoping Gu, John Oslund, Gary Thill
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Patent number: 7001409Abstract: An intravascular flow restrictor comprises a braided tubular structure designed to be placed in the main pulmonary artery for limiting blood pressure in the lungs. The braided structure is designed to be collapsed for placement in a delivery catheter but when ejected from the delivery catheter, assumes a substantially larger diameter disk shaped device having one or more longitudinal channels or passways therethrough.Type: GrantFiled: April 7, 2003Date of Patent: February 21, 2006Assignee: AGA Medical CorporationInventor: Kurt Amplatz
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Publication number: 20050228434Abstract: A collapsible medical device and associated methods of occluding an abnormal opening in, for example, a body organ, wherein the medical device is shaped from plural layers of a heat-treatable metal fabric. Each of the fabric layers is formed from a plurality of metal strands and the assembly is heat-treated within a mold in order to substantially set a desired shape of the device. By incorporating plural layers in the thus-formed medical device, the ability of the device to rapidly occlude an abnormal opening in a body organ is significantly improved.Type: ApplicationFiled: March 19, 2004Publication date: October 13, 2005Applicant: AGA Medical CorporationInventors: Kurt Amplatz, John Oslund, Gary Thill
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Patent number: 6932837Abstract: A collapsible medical device and associated method for grafting a lumen of selected organs and vessels, wherein the medical device is shaped from a shape memory fabric. The device is preferably made from a continuous tubular fabric and each end terminates with an open end for passage there through. Each end further includes a securing member attached to an outer perimeter of the end, wherein a substantial plane formed by the perimeter intersects the longitudinal axis of the tubular fabric at either an acute or obtuse angle. The fabric may be heat treated within a mold in order to substantially set a desired shape of the device. The securing member may also attach to the end of a guide wire or delivery catheter, thereby allowing deployment and later retrieval after deployment of the device.Type: GrantFiled: August 27, 2002Date of Patent: August 23, 2005Assignee: AGA Medical CorporationInventors: Kurt Amplatz, Michael Afremov
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Patent number: 6638257Abstract: An intravascular flow restrictor comprises a braided tubular structure designed to be placed in the main pulmonary artery for limiting blood pressure in the lungs. The braided structure is designed to be collapsed for placement in a delivery catheter but when ejected from the delivery catheter, assumes a substantially larger diameter disk shaped device having one or more longitudinal channels or passways therethrough.Type: GrantFiled: March 1, 2002Date of Patent: October 28, 2003Assignee: AGA Medical CorporationInventor: Kurt Amplatz
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Publication number: 20030171772Abstract: An intravascular flow restrictor comprises a braided tubular structure designed to be placed in the main pulmonary artery for limiting blood pressure in the lungs. The braided structure is designed to be collapsed for placement in a delivery catheter but when ejected from the delivery catheter, assumes a substantially larger diameter disk shaped device having one or more longitudinal channels or passways therethrough.Type: ApplicationFiled: April 7, 2003Publication date: September 11, 2003Applicant: AGA Medical CorporationInventor: Kurt Amplatz
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Publication number: 20030167068Abstract: An intravascular flow restrictor comprises a braided tubular structure designed to be placed in the main pulmonary artery for limiting blood pressure in the lungs. The braided structure is designed to be collapsed for placement in a delivery catheter but when ejected from the delivery catheter, assumes a substantially larger diameter disk shaped device having one or more longitudinal channels or passways therethrough.Type: ApplicationFiled: March 1, 2002Publication date: September 4, 2003Applicant: AGA Medical CorporationInventor: Kurt Amplatz
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Publication number: 20030023299Abstract: A collapsible medical device and associated method for grafting a lumen of selected organs and vessels, wherein the medical device is shaped from a shape memory fabric. The device is preferably made from a continuous tubular fabric and each end terminates with an open end for passage there through. Each end further includes a securing member attached to an outer perimeter of the end, wherein a substantial plane formed by the perimeter intersects the longitudinal axis of the tubular fabric at either an acute or obtuse angle. The fabric may be heat treated within a mold in order to substantially set a desired shape of the device. The securing member may also attach to the end of a guide wire or delivery catheter, thereby allowing deployment and later retrieval after deployment of the device.Type: ApplicationFiled: August 27, 2002Publication date: January 30, 2003Applicant: AGA Medical CorporationInventors: Kurt Amplatz, Michael Afremov
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Patent number: 6468303Abstract: A collapsible medical device and associated method for shunting selected organs and vessels, wherein the medical device is shaped from a shape memory metal fabric. The device may be used, for example, to non-surgically create a transjugular intrahepatic portosystemic shunt. The device is preferably made from a continuous tubular metal fabric and includes two outer flanges that reduce device migration and includes a central passageway between the two outer flanges. The metal fabric may be heat treated within a mold in order to substantially set a desired relaxed shape of the device. The medical device includes a fastener for attaching to the end of a guide wire or delivery catheter. The medical device having the desired relaxed shape may be collapsed and delivered through a catheter or the like for deployment in a desired channel or opening in a patient's body and is retrievable after deployment.Type: GrantFiled: March 27, 2000Date of Patent: October 22, 2002Assignee: AGA Medical CorporationInventors: Kurt Amplatz, Michael Afremov
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Patent number: 6468301Abstract: A collapsible medical device and associated method for grafting a lumen of selected organs and vessels, wherein the medical device is shaped from a shape memory fabric. The device is preferably made from a continuous tubular fabric and each end terminates with an open end for passage there through. Each end further includes a securing member attached to an outer perimeter of the end, wherein a substantial plane formed by the perimeter intersects the longitudinal axis of the tubular fabric at either an acute or obtuse angle. The fabric may be heat treated within a mold in order to substantially set a desired shape of the device. The securing member may also attach to the end of a guide wire or delivery catheter, thereby allowing deployment and later retrieval after deployment of the device.Type: GrantFiled: March 27, 2000Date of Patent: October 22, 2002Assignee: AGA Medical CorporationInventors: Kurt Amplatz, Michael Afremov
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Patent number: 6402772Abstract: A method for delivering an object within a patient, wherein the object is delivered in a preferred orientation relative to the delivery site of the patient. The delivery device has an alignment member that allows the object to be delivered intravascularly to the delivery site of the patient, wherein the object is delivered in a pre-determined orientation. The object may, for example, be non-symmetric or include a configuration that requires delivery to the site in only one suitable orientation relative to the delivery site. Such objects may be used, for example, to treat certain defects or injuries in vessels or organs within a patient's body.Type: GrantFiled: October 17, 2001Date of Patent: June 11, 2002Assignee: AGA Medical CorporationInventors: Kurt Amplatz, Michael Afremov
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Publication number: 20020029061Abstract: A device and method for delivering an object within a patient, wherein the object is delivered in a preferred orientation relative to the delivery site of the patient. The delivery device has an alignment member that allows the object to be delivered intravascularly to the delivery site of the patient, wherein the object is delivered in a pre-determined orientation. The object may, for example, be non-symmetric or include a configuration that requires delivery to the site in only one suitable orientation relative to the delivery site. Such objects may be used, for example, to treat certain defects or injuries in vessels or organs within a patient's body.Type: ApplicationFiled: October 17, 2001Publication date: March 7, 2002Applicant: AGA Medical Corp.Inventors: Kurt Amplatz, Michael Afremov