Patents by Inventor Stevan Nielsen

Stevan Nielsen 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).

  • Patent number: 8105311
    Abstract: A catheter is configured to prevent kinking of a catheter during handling or mounting of a pressure device. The catheter has a proximal end of its catheter shaft that is provided with a bending section having a flexibility greater than that of the section of the catheter shaft joining the proximal end.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: January 31, 2012
    Assignee: Abbott Laboratories Vascular Enterprises Limited
    Inventors: Ralph Schneider, Judith Hartwig, Stevan Nielsen
  • Patent number: 8092634
    Abstract: A method for connecting a catheter balloon with a catheter shaft of a balloon catheter that improves the welding quality of a weld between the catheter balloon and the catheter shaft of the balloon catheter. Preferably, a welding energy absorbing device is arranged, preferably in the form of a coloured tubing, in the area of a fixation site after attaching a pre-fixation and then to irradiate this welding energy absorbing device with the radiation energy to carry out the welding. After the welding the pre-fixation and the welding energy absorbing device are removed.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: January 10, 2012
    Assignee: Abbott Laboratories Vascular Enterprises Limited
    Inventors: Bodo Quint, Stevan Nielsen
  • Patent number: 8075616
    Abstract: A device for reshaping a cardiac valve (26), which is elongate and has such dimensions as to be insertable into a cardiac vessel (24). The device has two states, in a first state (K) of which the device has a shape that is adaptable to the shape of the vessel (24), and to the second state (k?) of which the device is transferable from said first state (K). Further, the device comprises a fixing means (22,23;22a,23a) for fixing the ends of the device within the vessel (24), when the device is first positioned therein, a shape-changing member (20;20a) for transferring the device to the second state (K?) by reshaping it, and a delay means (21;21a) for delaying said reshaping until the fixing of the ends of the device has been reinforced by keeping said device in said first state (K) until the delay means (21;21a) is resorbed.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: December 13, 2011
    Assignee: Edwards Lifesciences AG
    Inventors: Jan Otto Solem, Per Ola Kimblad, Randolf von Oepen, Bodo Quint, Gerd Seibold, Kenneth J. Michlitsch, Suk-Woo Ha, Karl-Ludwig Eckert, Ib Joergensen, Stevan Nielsen
  • Patent number: 7972358
    Abstract: Apparatus is provided for sealing a vascular puncture by causing a reduction in the circumference of the puncture tract through delivery of a closure agent into tissue surrounding the puncture tract. A resultant inflammatory response and volumetric increase cause the tissue to swell into the puncture tract, thereby sealing it.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: July 5, 2011
    Assignee: Abbott Laboratories Vascular Enterprises Limited
    Inventors: Stevan Nielsen, Bodo Quint, Randolf Von Oepen, Kenneth J. Michlitsch, Gerd Seibold, Tommy Conzelmann, Ib Erling Joergensen
  • Publication number: 20100319848
    Abstract: A method for connecting a catheter balloon with a catheter shaft of a balloon catheter that improves the welding quality of a weld between the catheter balloon and the catheter shaft of the balloon catheter. Preferably, a welding energy absorbing device is arranged, preferably in the form of a coloured tubing, in the area of a fixation site after attaching a pre-fixation and then to irradiate this welding energy absorbing device with the radiation energy to carry out the welding. After the welding the pre-fixation and the welding energy absorbing device are removed.
    Type: Application
    Filed: August 30, 2010
    Publication date: December 23, 2010
    Applicant: ABBOTT LABORATORIES VASCULAR ENTERPRISES LIMITED
    Inventors: Bodo Quint, Stevan Nielsen
  • Publication number: 20100305603
    Abstract: The present disclosure relates to treatment of disorders in the heart rhythm regulation system and, more particularly, to a medical device for tissue cutting and/or migrating wherein the cutting and/or migrating is at least partly actuated by the swelling of a swellable material. The disclosure furthermore relates to a method of producing such a medical device, a kit of such medical devices, and a method for treating such disorders.
    Type: Application
    Filed: October 17, 2007
    Publication date: December 2, 2010
    Inventors: Stevan Nielsen, Bodo Quint, Gerd Seibold, Ib Erling Joergensen
  • Patent number: 7794448
    Abstract: The invention provides a catheter and method of making the same including an outer tubular member having a length, an outer surface, an inner surface and a lumen therethrough. The catheter also includes an inner tubular member having an outer surface, an inner surface and a lumen therethrough, at least a length of the inner lumen is disposed in the lumen of the outer tubular member. The catheter also includes a support member biasing a portion of the outer surface of the inner tubular member against a portion of the inner surface of the outer tubular member.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: September 14, 2010
    Assignee: Abbott Laboratories
    Inventors: Axel Grandt, Randolf Von Oepen, Andrew Jeffrey, Bodo Quint, Stevan Nielsen, Thomas Rieth
  • Patent number: 7785439
    Abstract: A method for connecting a catheter balloon with a catheter shaft of a balloon catheter that improves the welding quality of a weld between the catheter balloon and the catheter shaft of the balloon catheter. Preferably, a welding energy absorbing device is arranged, preferably in the form of a colored tubing, in the area of a fixation site after attaching a pre-fixation and then to irradiate this welding energy absorbing device with the radiation energy to carry out the welding. After the welding the pre-fixation and the welding energy absorbing device are removed.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: August 31, 2010
    Assignee: Abbott Laboratories Vascular Enterprises Limited
    Inventors: Bodo Quint, Stevan Nielsen
  • Publication number: 20100016877
    Abstract: A tissue cutting device is disclosed, which is structured and arranged to be inserted through the vascular system into a body vessel adjacent to the heart and/or into the heart, and to be subsequently subjected to a change of shape in order to penetrate into the heart tissue. The device comprises at least one connection element that is arranged such that a connection formed from said connection element between a first and second part of said tissue cutting device is configured to break when said connection element is subjected to a specific external influence. The tissue cutting device may thus be used for controllably treating disorders to the heart rhythm regulation system. A kit of devices provides a plurality of devices for creating a lesion pattern for treating such disorders.
    Type: Application
    Filed: May 17, 2006
    Publication date: January 21, 2010
    Applicant: Syntach AG
    Inventors: Jan Otto Solem, Stevan Nielsen, Ib Joergensen, Gerd Seibold, Bodo Quint
  • Publication number: 20090228100
    Abstract: An elongate body including a proximal and distal anchor, and a bridge between the proximal and distal anchors. The bridge has an elongated state, having first axial length, and a shortened state, having a second axial length, wherein the second axial length is shorter than the first axial length. A resorbable thread may be woven into the bridge to hold the bridge in the elongated state and to delay the transfer of the bridge to the shortened state. In an additional embodiment, there may be one or more central anchors between the proximal and distal anchors with a bridge connecting adjacent anchors.
    Type: Application
    Filed: May 22, 2009
    Publication date: September 10, 2009
    Applicant: Edwards Lifesciences Corporation
    Inventors: Jan Otto Solem, Per Ola Kimblad, Stevan Nielsen, Ib Joergenson, Bodo Quint, Gerd Seibold, Randolf Von Oepen, Suk-Woo Ha, Karl-Ludwig Eckert, Stefan Schreck, Sepehr Fariabi, Tommy Conzelmann
  • Publication number: 20090209988
    Abstract: A patient-configured tissue cutting device is disclosed, which is structured and arranged to be inserted through the vascular system into a body vessel adjacent to the heart and/or into the heart, and to be subsequently subjected to a change of shape in order to penetrate into the heart tissue. The patient configured tissue cutting device may thus advantageously be used for treating disorders to the heart rhythm regulation system of a specific patient. A kit of devices provides a plurality of devices for creating a lesion pattern for treating such disorders, a device, system, and method for determining the shape of said vessel, are also disclosed.
    Type: Application
    Filed: May 17, 2006
    Publication date: August 20, 2009
    Applicant: Syntach AG
    Inventors: Jan Otto Solem, Stevan Nielsen, Ib Joergensen, Gerd Seibold, Bodo Quint
  • Publication number: 20090182418
    Abstract: A device for treatment of mitral annulus dilation is disclosed, wherein the device comprises two states. In a first of these states the device is insertable into the coronary sinus and has a shape of the coronary sinus. When positioned in the coronary sinus, the device is transferable to the second state assuming a reduced radius of curvature, whereby the radius of curvature of the coronary sinus and the radius of curvature as well as the circumference of the mitral annulus is reduced.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 16, 2009
    Inventors: Jan Otto Solem, Per-Ola Kimblad, Randolf Von Oepen, Bodo Quint, Gerd Seibold, Kenneth J. Michlitsch, Suk-Woo Ha, Karl-Ludwig Eckert, Ib Joergensen, Stevan Nielsen
  • Publication number: 20090163941
    Abstract: A tissue cutting device is disclosed, which is structured and arranged to be inserted through the vascular system into a body vessel adjacent to the heart and/or into the heart, and to be subsequently subjected to a change of shape in order to penetrate into the heart tissue. The tissue cutting device may thus be used for treating disorders to the heart rhythm regulation system. A kit of devices provides a plurality of devices for creating a lesion pattern for treating such disorders.
    Type: Application
    Filed: May 17, 2006
    Publication date: June 25, 2009
    Inventors: Jan Otto Solem, Stevan Nielsen, Ib Joergensen, Gerd Seibold, Bodo Quint
  • Publication number: 20080294088
    Abstract: A tissue cutting device is disclosed, which is structured and arranged to be inserted through the vascular system into a body vessel adjacent to the heart and/or into the heart, and to be subsequently subjected to a change of shape in order to penetrate into the heart tissue. The tissue cutting device may thus be used for treating disorders to the heart rhythm regulation system. A kit of tissue cutting devices provides a plurality of devices for creating a lesion pattern for treating such disorders. The tissue cutting device is of a biodegradable material, such as hydrolytically degradable material or an enzymatically degradable material.
    Type: Application
    Filed: May 17, 2006
    Publication date: November 27, 2008
    Inventors: Jan Otto Solem, Stevan Nielsen, Ib Joergensen, Gerd Siebold, Bodo Quint
  • Publication number: 20080208226
    Abstract: Apparatus is provided for sealing a puncture within a vessel or tissue to provide hemostasis, comprising a first disk coupled to either a second disk or a spring, and sealingly engaged to the vessel or tissue surrounding the puncture. At least the first disk is preferably configured to substantially conform to the profile of the vessel or tissue when deployed. In one embodiment, the disks may be released from engagement with the vessel or tissue to reposition the disks after deployment.
    Type: Application
    Filed: May 8, 2008
    Publication date: August 28, 2008
    Applicant: ABBOTT LABORATORIES VASCULAR ENTERPRISES, LTD.
    Inventors: Gerd Seibold, Kenneth J. Michlitsch, Rudolf Von Oepen, Bodo Quint, Ib Erling Joergensen, Stevan Nielsen, Tommy Conzelmann
  • Publication number: 20080208225
    Abstract: Apparatus is provided for sealing a puncture within a vessel or tissue to provide hemostasis, comprising a first disk coupled to either a second disk or a spring, and sealingly engaged to the vessel or tissue surrounding the puncture. At least the first disk is preferably configured to substantially conform to the profile of the vessel or tissue when deployed. In one embodiment, the disks may be released from engagement with the vessel or tissue to reposition the disks after deployment.
    Type: Application
    Filed: May 8, 2008
    Publication date: August 28, 2008
    Applicant: ABBOTT LABORATORIES VASCULAR ENTERPRISES, LTD.
    Inventors: Gerd Seibold, Kenneth J. Michlitsch, Rudolf Von Oepen, Bodo Quint, Ib Erling Joergensen, Stevan Nielsen, Tommy Conzelmann
  • Publication number: 20070078439
    Abstract: The invention provides a catheter and method of making the same including an first tubular member having a length, an outer surface, an inner surface and a lumen therein. The catheter also includes second tubular member having an outer surface, an inner surface and a lumen therein, at least a length of the second lumen is disposed in the lumen of the first tubular member. The catheter also includes a support member biasing a portion of the outer surface of the inner tubular member against a portion of the inner surface of the outer tubular member. The method of the invention includes providing a first tubular member and a second tubular member, arranging the first tubular member in contact with the second tubular member to define a contact area therebetween and joining the first and second tubular members at the contact area by irradiating them to define a fusion area having an intensity gradient.
    Type: Application
    Filed: May 23, 2006
    Publication date: April 5, 2007
    Inventors: Axel Grandt, Randolf Von Oepen, Hartmut Grathwohl, Bodo Quint, Stevan Nielsen
  • Publication number: 20070060910
    Abstract: The invention provides a catheter and method of making the same including an outer tubular member having a length, an outer surface, an inner surface and a lumen therethrough. The catheter also includes an inner tubular member having an outer surface, an inner surface and a lumen therethrough, at least a length of the inner lumen is disposed in the lumen of the outer tubular member. The catheter also includes a support member biasing a portion of the outer surface of the inner tubular member against a portion of the inner surface of the outer tubular member.
    Type: Application
    Filed: May 23, 2006
    Publication date: March 15, 2007
    Inventors: Axel Grandt, Randolf Von Oepen, Andrew Jeffrey, Bodo Quint, Stevan Nielsen, Thomas Rieth
  • Publication number: 20060155319
    Abstract: Apparatus is provided for sealing a vascular puncture by causing a reduction in the circumference of the puncture tract through delivery of a closure agent into tissue surrounding the puncture tract. A resultant inflammatory response and volumetric increase cause the tissue to swell into the puncture tract, thereby sealing it.
    Type: Application
    Filed: July 25, 2003
    Publication date: July 13, 2006
    Applicant: ABBOTT LABORATORIES VASCULAR ENTERPRISES, LIMITED
    Inventors: Stevan Nielsen, Bodo Quint
  • Publication number: 20060116756
    Abstract: A device for treatment of mitral annulus dilation is disclosed, wherein the device comprises two states. In a first of these states the device is insertable into the coronary sinus and has a shape of the coronary sinus. When positioned in the coronary sinus, the device is transferable to the second state assuming a reduced radius of curvature, whereby the radius of curvature of the coronary sinus and the radius of curvature as well as the circumference of the mitral annulus is reduced.
    Type: Application
    Filed: January 4, 2006
    Publication date: June 1, 2006
    Inventors: Jan Solem, Per-Ola Kimblad, Randolf Oepen, Bodo Quint, Gerd Seibold, Kenneth Michlitsch, Suk-Woo Ha, Karl-Ludwig Eckert, Ib Joergensen, Stevan Nielsen