Patents by Inventor Dennis Wahr

Dennis Wahr 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).

  • Publication number: 20190142511
    Abstract: A pulmonary treatment catheter and handle system including a catheter assembly with insertion tube coupled to a handle assembly. The system is further removably coupleable to a delivery device, such as a flexible bronchoscope or endoscope, having a port for coupling the handle assembly thereto, and a working channel in communication with the port for delivering the catheter assembly through the delivery device and into a body lumen. Optionally, a port channel of the port can be collinear with the working channel of the delivery device. The catheter assembly, handle assembly, and delivery device cooperate together to facilitate delivery and positioning of a catheter electrode in a treatment site, such as an airway, conduit, or vessel for treatment of the tissue, while minimizing damage to portions of the catheter assembly, the delivery device, or both.
    Type: Application
    Filed: June 9, 2017
    Publication date: May 16, 2019
    Inventors: Dennis WAHR, Larry WALES, Steven P. MERTENS
  • Publication number: 20070255210
    Abstract: An evacuation sheath assembly and method of treating occluded vessels which reduces the risk of distal embolization during vascular interventions is provided. A method of treating a blood vessel, includes providing an elongate member having proximal and distal ends, a lumen therebetween, the distal end having a braided sheath expandable between a reduced and expanded diameter, and a fluid-tight covering. The elongate member is advanced into a blood vessel that supplies blood to the heart. The braided sheath is expanded to engage the endoluminal surface of the blood vessel and stop antegrade flow.
    Type: Application
    Filed: June 29, 2007
    Publication date: November 1, 2007
    Inventors: Dennis Wahr, Thomas Ressemann, Peter Keith, David Blaeser, Michael Berman
  • Publication number: 20070066994
    Abstract: A device for sealing a patent foramen ovale (PFO) in the heart is provided. The device includes a left atrial anchor adapted to be placed in a left atrium of the heart, a right atrial anchor adapted to be placed in a right atrium of the heart, and an elongate member adapted to extend through the passageway and connect the left and right atrial anchors. The right atrial anchor preferably includes a plurality of arms and a cover attached to the arms. The left atrial anchor preferably also includes a plurality of arms and preferably does not include a cover. Preferably, the elongate member has a first end fixedly connected to the left atrial anchor and a portion, proximal to the first end, passing through the right atrial anchor. Preferably, the elongate member is flexible.
    Type: Application
    Filed: September 16, 2006
    Publication date: March 22, 2007
    Applicant: St. Jude Medical, Cardiology Division, Inc.
    Inventors: David Blaeser, Jerome Grudem, Scott Olson, Mark Christianson, Scott Hanson, Edward Anderson, Patrick Russo, Dennis Wahr
  • Publication number: 20070016250
    Abstract: A device for sealing a patent foramen ovale (PFO) in the heart is provided. The device includes a left atrial anchor adapted to be placed in a left atrium of the heart, a right atrial anchor adapted to be placed in a right atrium of the heart, and an elongate member adapted to extend through the passageway and connect the left and right atrial anchors. The right atrial anchor preferably includes a plurality of arms and a cover attached to the arms. The left atrial anchor preferably also includes a plurality of arms and preferably, does not include a cover. Preferably, the elongate member has a first end fixedly connected to the left atrial anchor and a portion, proximal to the first end, passing through the right atrial anchor. Preferably, the elongate member is flexible.
    Type: Application
    Filed: September 16, 2006
    Publication date: January 18, 2007
    Applicant: St. Jude Medical, Cardiology Division, Inc.
    Inventors: David Blaeser, Jerome Grudem, Scott Olson, Mark Christianson, Scott Hanson, Edward Anderson, Patrick Russo, Dennis Wahr
  • Publication number: 20070010852
    Abstract: A device for sealing a patent foramen ovale (PFO) in the heart is provided. The device includes a left atrial anchor adapted to be placed in a left atrium of the heart, a right atrial anchor adapted to be placed in a right atrium of the heart, and an elongate member adapted to extend through the passageway and connect the left and right atrial anchors. The right atrial anchor preferably includes a plurality of arms and a cover attached to the arms. The left atrial anchor preferably also includes a plurality of arms and preferably-does not include-a-cover. Preferably, the elongate member has a first end fixedly connected to the left atrial anchor and a portion, proximal to the first end, passing through the right atrial anchor. Preferably, the elongate member is flexible.
    Type: Application
    Filed: September 16, 2006
    Publication date: January 11, 2007
    Applicant: St. Jude Medical, Cardiology Division, Inc.
    Inventors: David Blaeser, Jerome Grudem, Scott Olson, Mark Christianson, Scott Hanson, Edward Anderson, Patrick Russo, Dennis Wahr
  • Publication number: 20060116659
    Abstract: An evacuation sheath assembly and method of treating occluded vessels which reduces the risk of distal embolization during vascular interventions is provided. A method of treating a lesion within a blood vessel, e.g., a coronary artery, includes advancing a sheath into the blood vessel, the sheath having a lumen extending to a port at a distal end of the sheath and further having an occlusive member within a distal region of the sheath. The occlusive member is then positioned within the blood vessel proximal to the lesion. Subsequently, the occlusive member is deployed, thereby stopping antegrade flow across the lesion. A contrast agent can then be infused through a port in the sheath. A dilation balloon is then advanced across the lesion. Suction is then applied to the lumen to induce retrograde flow across the lesion after dilating the lesion.
    Type: Application
    Filed: January 19, 2006
    Publication date: June 1, 2006
    Inventors: Dennis Wahr, Thomas Ressemann, Peter Keith, David Blaeser, Michael Berman
  • Publication number: 20060036284
    Abstract: Devices and methods for sealing a passageway formed by a patent foramen ovale (PFO track) in the heart are provided. One method includes providing an abrading device to the PFO track and abrading the tissue within the PFO track. The abraded tissue forming the PFO track is then held together under pressure, either via lowering right atrial pressure or via applying suction to the septum primum to pull it into apposition against the septum secundum. After a sufficient period of time, the pressure is released and the abraded tissue heals to form a robust seal over the PFO track. Additionally, several devices are provided which can be placed into the PFO track to apply adhesive to the walls of the PFO track. The devices may or may not be left within the PFO track. If the devices are not left within the PFO track, the walls of the PFO track, covered with adhesive, are brought into apposition with one another and adhered together.
    Type: Application
    Filed: October 14, 2005
    Publication date: February 16, 2006
    Inventors: David Blaeser, Peter Keith, Jerome Grudem, Scott Olson, Steven Hackett, Thomas Ressemann, Joel Phillips, Mark Christianson, Dennis Wahr
  • Publication number: 20060036282
    Abstract: A device for sealing a patent foramen ovale (PFO) in the heart is provided. The device includes a left atrial anchor adapted to be placed in a left atrium of the heart, a right atrial anchor adapted to be placed in a right atrium of the heart, and an elongate member adapted to extend through the passageway and connect the left and right atrial anchors. The right atrial anchor preferably includes a plurality of arms and a cover attached to the arms. The left atrial anchor also includes a plurality of arms and preferably does not include a cover. Preferably, the elongate member has a first end of fixedly connected to the left atrial anchor and a portion, proximal to the first end, releasably connected to the right atrial anchor. Preferably, the elongate member is flexible.
    Type: Application
    Filed: August 8, 2005
    Publication date: February 16, 2006
    Inventors: Dennis Wahr, David Blaeser, Peter Keith, Thomas Ressemann
  • Publication number: 20060009800
    Abstract: A device for sealing a patent foramen ovale (PFO) in the heart is provided. The device includes a left atrial anchor adapted to be placed in a left atrium of the heart, a right atrial anchor adapted to be placed in a right atrium of the heart, and an elongate member adapted to extend through the passageway and connect the left and right atrial anchors. A system for delivering the closure device includes side-by-side tubes. A device for retrieving a mis-deployed closure device includes a shaft portion and an expandable retrieval portion.
    Type: Application
    Filed: September 7, 2004
    Publication date: January 12, 2006
    Inventors: Mark Christianson, Scott Olson, Edward Anderson, Philip Haarstad, Douglas Krone, Dennis Wahr, David Blaeser
  • Publication number: 20050267526
    Abstract: A device for sealing a patent foramen ovale (PFO) in the heart is provided. The device includes a left atrial anchor adapted to be placed in a left atrium of the heart, a right atrial anchor adapted to be placed in a right atrium of the heart, and an elongate member adapted to extend through the passageway and connect the left and right atrial anchors. The right atrial anchor preferably includes a plurality of arms and a cover attached to the arms. The left atrial anchor also includes a plurality of arms and preferably does not include a cover. Preferably, the elongate member has a first end of fixedly connected to the left atrial anchor and a portion, proximal to the first end, releasably connected to the right atrial anchor.
    Type: Application
    Filed: July 21, 2005
    Publication date: December 1, 2005
    Inventors: Dennis Wahr, David Blaeser, Peter Keith, Thomas Ressemann
  • Publication number: 20050131447
    Abstract: An evacuation sheath assembly and method of treating occluded vessels which reduces the risk of distal embolization during vascular interventions is provided. The evacuation sheath assembly includes an elongated tube defining an evacuation lumen having proximal and distal ends. A proximal sealing surface is provided on a proximal portion of the tube and is configured to form a seal with a lumen of a guided catheter. A distal sealing surface is provided on a distal portion of the tube and is configured to form a seal with a blood vessel. A method of treatment of a blood vessel using the evacuation sheath assembly includes advancing the evacuation sheath assembly into the blood vessel through a guide catheter. Prior to advancing a device across a stenosis to be treated, normal antegrade blood flow in the blood vessel proximate to the stenosis is stopped. While blood flow is stopped, the stenosis is treated.
    Type: Application
    Filed: January 14, 2005
    Publication date: June 16, 2005
    Inventors: Dennis Wahr, Thomas Ressemann, Peter Keith, David Blaeser, Michael Berman
  • Publication number: 20050049574
    Abstract: A catheter comprising an elongate tubular member having a proximal end and a distal end, and a deflectable tip at the distal end of the elongate tubular member. The deflectable tip comprises a first helical coil having a first diameter and a second helical coil having a second diameter, the first diameter being larger than the second diameter. The first and second helical coils are arranged in the manner of a double helix. When viewed in cross-section, the first helical coil and the second helical coil are aligned at a first point on a circumference of each coil and misaligned at a second point on the circumference of each coil, where the second point is approximately 180 degrees from the first point. In certain embodiments the catheter further includes a dilatation balloon. Methods of use for crossing a chronic total occlusion are also described.
    Type: Application
    Filed: September 2, 2003
    Publication date: March 3, 2005
    Inventors: Timothy Petrick, Steven Willard, Peter Keith, Dennis Wahr