Patents by Inventor David Blaeser

David Blaeser 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: 20170348099
    Abstract: Delivery devices for a stented prosthetic heart valve. The delivery device includes a spindle, at least one cord, and a lateral control feature. The cord is tensioned to crimp the prosthesis to a compressed condition for delivery to a target site. Tension is lessened to allow the prosthesis to self-expand. In a tethered and expanded state in which the prosthesis has self-expanded and is connected to the spindle by the cord, the lateral control feature directs the spindle to a prescribed location relative to the prosthesis appropriate for a functional evaluation of the prosthesis. In some embodiments, the spindle is directed to a center of the prosthesis; in other embodiments, the spindle is held at a commissure of the prosthesis. The lateral control features of the present disclosure assume numerous forms.
    Type: Application
    Filed: June 6, 2017
    Publication date: December 7, 2017
    Inventors: Jill Mendelson, Michele Silver, Michael Gloss, Timothy Groen, Paul Rothstein, Jeffrey Sandstrom, Paul Haarstad, Joel Racchini, David Blaeser
  • Publication number: 20150374524
    Abstract: A device for isolating tissue in the digestive tract including a biocompatible portion having a surface sized to cover the tissue to be isolated and also includes a plurality of micro-anchors attached to the biocompatible portion and extending from the surface, the micro-anchors sized to penetrate the mucosa of the tissue. A method for isolating tissue in the digestive tract in which an isolation element is delivered to a desired location in the digestive system; the isolation element having fixed thereto a plurality of micro-anchors. The method also includes attaching the isolation element to tissue at the desired location by causing the micro-anchors to penetrate the mucosa of the tissue.
    Type: Application
    Filed: September 8, 2015
    Publication date: December 31, 2015
    Inventors: David Blaeser, Dale Spencer
  • Patent number: 9155608
    Abstract: A device for isolating tissue in the digestive tract including a biocompatible portion having a surface sized to cover the tissue to be isolated and also includes a plurality of micro-anchors attached to the biocompatible portion and extending from the surface, the micro-anchors sized to penetrate the mucosa of the tissue. A method for isolating tissue in the digestive tract in which an isolation element is delivered to a desired location in the digestive system; the isolation element having fixed thereto a plurality of micro-anchors. The method also includes attaching the isolation element to tissue at the desired location by causing the micro-anchors to penetrate the mucosa of the tissue.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: October 13, 2015
    Inventors: David Blaeser, Dale Spencer
  • Publication number: 20110009801
    Abstract: A device for isolating tissue in the digestive tract including a biocompatible portion having a surface sized to cover the tissue to be isolated and also includes a plurality of micro-anchors attached to the biocompatible portion and extending from the surface, the micro-anchors sized to penetrate the mucosa of the tissue. A method for isolating tissue in the digestive tract in which an isolation element is delivered to a desired location in the digestive system; the isolation element having fixed thereto a plurality of micro-anchors. The method also includes attaching the isolation element to tissue at the desired location by causing the micro-anchors to penetrate the mucosa of the tissue.
    Type: Application
    Filed: September 12, 2008
    Publication date: January 13, 2011
    Applicant: MEDICAL AND SURGICAL REVIEW, P.C.
    Inventors: David Blaeser, Dale Spencer
  • 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
  • Patent number: 5980484
    Abstract: An intravascular balloon catheter including a dilation balloon is provided. The intravascular balloon catheter includes a shaft assembly including a proximal end, a distal end, and an inflation lumen extending longitudinally therethrough. The dilation balloon is operably coupled proximate the distal end of the shaft assembly, such that an interior chamber of the dilation balloon is in fluid communication with the inflation lumen. In one aspect of the invention, a core wire is disposed within the inflation lumen of the shaft assembly. In another aspect of the invention, a tubular member extends longitudinally over the exterior of the dilation balloon for receiving a guidewire.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: November 9, 1999
    Assignee: SciMed Life Systems, Inc.
    Inventors: Thomas V. Ressemann, Timothy Stivland, David Blaeser
  • Patent number: 5718683
    Abstract: A dilation balloon is provided for an intravascular catheter having an elongated shaft with a proximal portion, a distal portion, and an inflation lumen extending therethrough. In one aspect of the invention, the dilation balloon includes a balloon member having a chamber therein in fluid communication with the inflation lumen. The balloon member defines a portion of a guide wire lumen which coextends with a portion of the balloon member for receiving a guide wire. In another aspect of the invention, a balloon is connected to the distal portion of the catheter shaft and a guide wire lumen is spaced exteriorly from the shaft and coextends with a portion of the balloon. In yet another aspect of the invention, a process for making a dilation balloon includes the step of providing a longitudinal member having a first elongated lumen and a second elongated lumen.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: February 17, 1998
    Assignee: SciMed Life Systems, Inc.
    Inventors: Thomas V. Ressemann, Timothy Stivland, David Blaeser
  • Patent number: 5645533
    Abstract: A method and apparatus are provided for performing a balloon angioplasty procedure and for exchanging a guide wire and an intravascular catheter during the procedure. An intravascular balloon catheter includes an elongated shaft having a proximal portion adapted to extend outside the body of a patient during use, a distal portion adapted for connection to a dilation balloon and adapted for positioning intravascularly during use, and an inflation lumen extending therethrough in fluid flow communication with the balloon. In one aspect of the invention, an elongated guide lumen is connected to the catheter such that the guide lumen and catheter are movable relative to each other during use. A proximal portion of the guide lumen is adapted to extend outside the body of a patient during use, and a distal portion of the guide lumen is adapted to extend distally of the balloon during use.
    Type: Grant
    Filed: January 26, 1995
    Date of Patent: July 8, 1997
    Assignee: SciMed Life Systems, Inc.
    Inventors: David Blaeser, Janita Burmeister, Peter Keith, Thomas Ressemann
  • Patent number: 5549553
    Abstract: A dilation balloon is provided for an intravascular catheter having an elongated shaft with a proximal portion, a distal portion, and an inflation lumen extending therethrough. In one aspect of the invention, the dilation balloon includes a balloon member having a chamber therein in fluid communication with the inflation lumen. The balloon member defines a portion of a guide wire lumen which coextends with a portion of the balloon member for receiving a guide wire. In another aspect of the invention, a balloon is connected to the distal portion of the catheter shaft and a guide wire lumen is spaced exteriorly from the shaft and coextends with a portion of the balloon. In yet another aspect of the invention, a process for making a dilation balloon includes the step of providing a longitudinal member having a first elongated lumen and a second elongated lumen.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: August 27, 1996
    Assignee: SciMed Life Systems, Inc.
    Inventors: Thomas V. Ressemann, Timothy Stivland, David Blaeser