Patents by Inventor Peter T. Keith

Peter T. Keith 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: 20120253382
    Abstract: An embolic protection system and method of treating occluded vessels which reduces the risk of distal embolization during vascular interventions is provided. The embolic protection system includes a guide catheter, a multi-lumen tube having a sealing surface on the distal end and an interventional device. A method of treating a blood vessel includes providing a guide catheter and a multi-lumen elongate member having proximal and distal ends, evacuation and inflation lumens extending therebetween and a sealing surface on the distal end. The elongate member is advanced through the guide catheter into a blood vessel that supplies blood to the heart proximal a lesion. The sealing surface is expanded to engage the endoluminal surface of the blood vessel and stop antegrade flow. An interventional device is advanced through the evacuation lumen to treat the lesion.
    Type: Application
    Filed: June 15, 2012
    Publication date: October 4, 2012
    Applicant: St. Jude Medical, Cardiology Division
    Inventors: Dennis W. Wahr, Thomas V. Ressemann, Peter T. Keith, David J. Blaeser, Michael Berman
  • Patent number: 8277459
    Abstract: The various embodiments disclosed herein relate to implantable devices for the treatment of a structural bone and deformity. More specifically, the various embodiments include systems, devices, and methods for implantation of a flexible or tension band for treating such a deformity, including hallux valgus.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: October 2, 2012
    Assignee: Tarsus Medical Inc.
    Inventors: Paul M. Sand, Peter T. Keith, John Avi Roop, Joshua Baltzell, Jason W. Lettmann
  • Patent number: 8267872
    Abstract: A steerable guide wire includes a core wire having a proximal end and a distal end. A multi-filament bundle is affixed to the distal end of the core wire. An outer coil surrounds at least a portion of the core wire and the multi-filament bundle. A proximal end of the multi-filament bundle is secured to a distal end of the coil. By locating the multi-filament bundle in the distal tip portion of the guide wire, a guide wire is provided that is highly flexible, has a high degree of tensile integrity, and is highly steerable, even in tortuous vasculature.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: September 18, 2012
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Thomas V. Ressemann, Peter T. Keith
  • Patent number: 8241266
    Abstract: A method of treating diseased ethmoid sinuses in a patient with a therapeutic agent includes providing an injection device comprising an elongate member having a proximal end, a distal tip or end, and a lumen extending between the distal tip and the proximal end, the proximal end being operatively coupled to a source of the therapeutic agent. The distal tip of the injection device is inserted at least partially within an interior portion of an ethmoid air cell. The therapeutic agent is then injected into the interior portion of the ethmoid air cell using the injection device, the therapeutic agent being delivered via the lumen in the elongate member.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: August 14, 2012
    Assignee: Entellus Medical, Inc.
    Inventors: Peter T. Keith, Theodore O. Truitt, Thomas V. Ressemann
  • Publication number: 20120190973
    Abstract: A method of treating a constricted sinus passageway of a patient includes traversing the canine fossa region of the patient so as to form a passageway in the sinus cavity. An elongate member is inserted through the passageway, the elongate member having an inflation member such as a balloon disposed thereon. The inflation member is positioned within the constricted passageway. The inflation member is expanded so as to expand at least a portion of the constricted sinus passageway.
    Type: Application
    Filed: March 13, 2012
    Publication date: July 26, 2012
    Applicant: ENTELLUS MEDICAL, INC.
    Inventors: Thomas V. Ressemann, Peter T. Keith, Theodore O. Truitt
  • Patent number: 8221348
    Abstract: An evacuation sheath assembly and method of reducing or removing a blockage within a vessel without permitting embolization of particulate matter is provided. The evacuation sheath assembly includes a first elongate tubular member, having proximal and distal ends and a main lumen configured to be placed in fluid communication with a blood vessel. An expandable member is provided on a distal portion of the tubular member and is configured to form a seal with the blood vessel. The evacuation assembly further includes a second elongate tubular member having proximal and distal ends and an inflation lumen configured to be placed in fluid communication with the expandable member and a gas inflator. The gas inflator includes a high pressure gas source and a mechanism for regulating the pressure of the gas delivered by the gas inflator.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: July 17, 2012
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Steven S. Hackett, Eric S. Stainbrook, Thomas F. Janecek, Chad W. Trembath, Andrew J. Dusbabek, John R. Drontle, Joel D. Phillips, Thomas V. Ressemann, Kyle L. Thunstrom, Peter T. Keith
  • Publication number: 20120172912
    Abstract: A method of treating a constricted sinus passageway of a patient includes traversing the canine fossa region of the patient so as to form a passageway in the sinus cavity. An elongate member is inserted through the passageway, the elongate member having an inflation member such as a balloon disposed thereon. The inflation member is positioned within the constricted passageway. The inflation member is expanded so as to expand at least a portion of the constricted sinus passageway.
    Type: Application
    Filed: March 13, 2012
    Publication date: July 5, 2012
    Applicant: ENTELLUS MEDICAL, INC.
    Inventors: Thomas V. Ressemann, Peter T. Keith, Theodore O. Truitt
  • Publication number: 20120130447
    Abstract: Devices, systems and methods are described by which the blood pressure, nervous system activity, and neurohormonal activity may be selectively and controllably reduced by activating baroreceptors. A baroreceptor activation device is positioned near a baroreceptor, preferably a baroreceptor located in the carotid sinus. A control system may be used to modulate the baroreceptor activation device. The control system may utilize an algorithm defining a stimulus regimen which promotes long term efficacy and reduces power requirements/consumption. The baroreceptor activation device may utilize electrodes to activate the baroreceptors. The electrodes may be adapted for connection to the carotid arteries at or near the carotid sinus, and may be designed to minimize extraneous tissue stimulation.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 24, 2012
    Inventors: Stephen L. Bolea, Robert S. Kieval, Bruce J. Persson, David J. Serdar, Peter T. Keith, Eric D. Irwin, Martin A. Rossing
  • Publication number: 20120071935
    Abstract: The various embodiments disclosed herein relate to methods and devices for treating a bone deformity such as hallux valgus. The various methods and devices relate to first and second anchors that are configured to be anchored in adjacent bones such that the two anchors, and thus the two bones, can be urged toward each other to treat the bone deformity.
    Type: Application
    Filed: August 31, 2011
    Publication date: March 22, 2012
    Applicant: Tarsus Medical Inc.
    Inventors: Peter T. Keith, Nick T. Mourlas
  • Publication number: 20120010646
    Abstract: A method of treating a constricted sinus passageway of a patient includes traversing the canine fossa region of the patient so as to form a passageway in the sinus cavity. A cannula is positioned in the passageway. A visualization tool such as an endoscope is passed through a lumen or channel in the cannula to aid in visualization of the anatomical site of interest. A balloon dilation catheter is then deployed through or along the cannula so as to place the balloon within or across the constricted anatomical space (e.g., ostium). The balloon is then expanded so as to expand at least a portion of the constricted anatomical space. Alternative embodiments include the use of an optional guide wire and incorporating a endoscope lumen through the balloon dilation catheter.
    Type: Application
    Filed: September 20, 2011
    Publication date: January 12, 2012
    Applicant: ENTELLUS MEDICAL INC.
    Inventors: Peter T. Keith, Theodore O. Truitt, Thomas V. Ressemann, John R. Drontle, Joel R. Munsinger, Anthony J. Hanson
  • Publication number: 20110288477
    Abstract: A system for manipulating a guide catheter within a patient's nasal passages or sinus cavities includes a guide catheter formed from an elongate flexible member having a lumen passing there through. A wire guide is slidably disposed within the lumen of the guide catheter. The system further includes a steering member fixedly secured to a proximal end of the wire guide and a proximal hub secured to a proximal end of the guide catheter. The system further includes a recessed handle having a first recess for fixedly receiving the proximal hub of the guide catheter and a second recess for receiving the steering member, the second recess being dimensioned to permit axial and rotational movement of the steering member while disposed in the second recess.
    Type: Application
    Filed: August 3, 2011
    Publication date: November 24, 2011
    Applicant: ENTELLUS MEDICAL, INC.
    Inventors: Thomas V. Ressemann, Peter T. Keith, Theodore O. Truitt
  • Publication number: 20110271967
    Abstract: A method and implantation tools for placing a transventricular splint including a tension member. The method includes gaining access to the patient's hearts and identifying entry or exit points for the tension member, marking those locations and delivering the tension member. Anchors for the tension member are also delivered. The length of the tensions member is measured and the walls of the heart drawn together. The pads are secured to the tension member and the tension member is trimmed to length. The pads are secured to the heart surface.
    Type: Application
    Filed: July 18, 2011
    Publication date: November 10, 2011
    Applicant: Edwards Lifesciences Corporation
    Inventors: Todd J. Mortier, Cyril J. Schweich, JR., Robert M. Vidlund, Peter T. Keith, Thomas M. Paulson, David A. Kusz
  • Patent number: 8034023
    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, includes providing an evacuation sheath assembly having a multi-lumen tube with proximal and distal ends, first and second lumens therebetween, and at least one sealing surface mounted on the distal end of the multi-lumen tube. The evacuation sheath assembly is advanced to a region of interest within a blood vessel. The sealing surface is deployed upstream of the region of interest to occlude antegrade flow adjacent to the lesion to be treated. A dilation catheter is advanced through the multi-lumen tube such that the dilation balloon is positioned across the lesion and the lesion is dilated. Suction is applied to induce retrograde blood flow to carry dislodged embolic material into a lumen of the evacuation sheath assembly.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: October 11, 2011
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Dennis W. Wahr, Thomas V. Ressemann, Peter T. Keith, David J. Blaeser, Michael Berman
  • Publication number: 20110202137
    Abstract: Devices and methods for treating a damaged intervertebral disc to reduce or eliminate associated back pain. The present invention provides disc reinforcement therapy (DRT) which involves implanting one or more reinforcement members in and preferably around the annulus of the disc. The reinforcement members may be used to stabilize the annulus and/or compresses a portion of the annulus so as to reduce a bulge and/or close a fissure. The implantable devices and associated delivery tools may incorporate heating capabilities to thermally treat the annular tissue. Alternatively or in combination, other devices may be specifically employed for such thermal treatment.
    Type: Application
    Filed: February 15, 2011
    Publication date: August 18, 2011
    Applicant: Anulex Technologies, Inc.
    Inventors: Peter T. Keith, Robert E. Atkinson
  • Publication number: 20110178557
    Abstract: The various embodiments disclosed herein relate to implantable devices for the treatment of structural bone and joint deformity, including hallux valgus. More specifically, the various embodiments include systems, devices, and methods for implantation of a flexible or tension band for treating such deformity.
    Type: Application
    Filed: January 21, 2010
    Publication date: July 21, 2011
    Inventors: Shannon M. Rush, Peter T. Keith, Paul M. Sand, John Avi Roop, Jason W. Lettmann, Joshua Baltzell
  • Patent number: 7981020
    Abstract: A method and implantation tools for placing a transventricular splint including a tension member. The method includes gaining access to the patient's hearts and identifying entry or exit points for the tension member, marking those locations and delivering the tension member. Anchors for the tension member are also delivered. The length of the tensions member is measured and the walls of the heart drawn together. The pads are secured to the tension member and the tension member is trimmed to length. The pads are secured to the heart surface.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: July 19, 2011
    Assignee: Edwards Lifesciences LLC
    Inventors: Todd J. Mortier, Cyril J. Schweich, Jr., Robert M. Vidlund, Peter T. Keith, Thomas M. Paulson, David A. Kusz
  • Patent number: 7976564
    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: Grant
    Filed: May 6, 2002
    Date of Patent: July 12, 2011
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: David J. Blaeser, Peter T. Keith, Jerome K. Grudem, Jr., Scott A. Olson, Steven S. Hackett, Thomas V. Ressemann, Joel D. Phillips, Mark R. Christianson, Dennis W. Wahr
  • Patent number: 7959603
    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: Grant
    Filed: June 29, 2007
    Date of Patent: June 14, 2011
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Dennis W. Wahr, Thomas V. Ressemann, Peter T. Keith, David J. Blaeser, Michael Berman
  • Patent number: 7949400
    Abstract: Devices, systems and methods are disclosed by which the blood pressure, nervous system activity, and neurohormonal activity may be selectively and controllably reduced by activating baroreceptors. A baroreceptor activation device is positioned near a baroreceptor, preferably a baroreceptor located in the carotid sinus. A control system may be used to modulate the baroreceptor activation device. The control system may utilize an algorithm defining a stimulus regimen which promotes long term efficacy and reduces power requirements/consumption. The baroreceptor activation device may utilize RF-coupled or other electrodes to activate the baroreceptors. The electrodes may be adapted for connection to the carotid arteries at or near the carotid sinus, and may be designed to minimize extraneous tissue stimulation.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: May 24, 2011
    Assignee: CVRx, Inc.
    Inventors: Robert S. Kieval, Bruce J. Persson, David J. Serdar, Peter T. Keith, Martin A. Rossing
  • Publication number: 20110106132
    Abstract: Methods are provided for partial aortic obstruction for cerebral perfusion augmentation in patients suffering from global or focal cerebral ischemia. Alternatively, the methods can be used to partially obstruct aortic blood flow to condition the spinal cord to secrete neuroprotective agents prior to abdominal aortic aneurysm repair. Partial obstruction of a vessel can be accomplished by a device comprising an elongate catheter and a distally mounted expandable member. The expandable member may comprise one or two balloons. Other medical devices, such as an angioplasty, stent, or atherectomy catheter, can be inserted distal the expandable member to provide therapeutic intervention.
    Type: Application
    Filed: January 10, 2011
    Publication date: May 5, 2011
    Inventors: Denise R. Barbut, Peter T. Keith, Steven W. Berhow, Jon P. St. Germain