Patents by Inventor David F. Kallmes

David F. Kallmes 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: 11883083
    Abstract: A needle-mounted balloon system can include a cannula and a stylet. The cannula may include a handle and an outer sheath, and the outer sheath may be configured to retract and expose at least a portion of an expandable member. The stylet may include a stylet needle and a sharp distal tip portion. The stylet needle may be used to insert the system into a body structure, after which the stylet may be disengaged from the cannula. The expandable member may then be exposed and inflated to create a space in the body structure. Filler material may be injected through the cannula to the open space in an effort to stabilize an injured or otherwise destabilized portion of the body structure.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: January 30, 2024
    Assignee: KyphEZE, Inc.
    Inventors: David F. Kallmes, Waleed Brinjikji
  • Patent number: 11642143
    Abstract: A balloon guiding sheath may include an elongated sheath comprising a proximal end, a distal end, an inner tube, an outer tube surrounding the inner tube, an access port, a distal port, and a working lumen extending through an interior portion of the elongated sheath between the access port and the distal port. The balloon guiding sheath may also include an inflatable balloon located on an outer surface of the elongated sheath adjacent the distal end. The balloon guiding sheath may include a plurality of inflation holes extending through a side wall of the elongated sheath. The elongated sheath may be sized and configured to enable direct insertion into a patient's vasculature through an arteriotomy in at least one of a femoral artery and vertebral artery to position the inflatable balloon at a target site.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: May 9, 2023
    Assignees: COVIDIEN LP, MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCH
    Inventors: David F. Kallmes, Waleed Brinjikji, Brady Hatcher, Randy Beyreis
  • Publication number: 20220117642
    Abstract: A needle-mounted balloon system can include a cannula and a stylet. The cannula may include a handle and an outer sheath, and the outer sheath may be configured to retract and expose at least a portion of an expandable member. The stylet may include a stylet needle and a sharp distal tip portion. The stylet needle may be used to insert the system into a body structure, after which the stylet may be disengaged from the cannula. The expandable member may then be exposed and inflated to create a space in the body structure. Filler material may be injected through the cannula to the open space in an effort to stabilize an injured or otherwise destabilized portion of the body structure.
    Type: Application
    Filed: December 30, 2021
    Publication date: April 21, 2022
    Inventors: David F. Kallmes, Waleed Brinjikji
  • Publication number: 20220062597
    Abstract: The disclosure includes a balloon guiding sheath including an elongated sheath having a proximal end, a distal end, an inner tube and an outer tube both extending between the proximal end and the distal end, an access port located adjacent the proximal end, a distal port located adjacent the distal end, and a working lumen extending through the elongated sheath between the access port and the distal port. The balloon guiding sheath may include an inflatable balloon located on an outer surface of the elongated sheath adjacent the distal end, and at least one vent hole located between an outer surface of the elongated sheath and an inner surface of the inflatable balloon. The at least one vent hole may be configured to allow media to flow from the inflatable balloon to an external portion outside the balloon guiding sheath.
    Type: Application
    Filed: December 18, 2019
    Publication date: March 3, 2022
    Inventors: David F. Kallmes, Waleed Brinjikji, Brady Hatcher, Randy Beyreis
  • Patent number: 11229466
    Abstract: A needle-mounted balloon system can include a cannula and a stylet. The cannula may include a handle and an outer sheath, and the outer sheath may be configured to retract and expose at least a portion of an expandable member. The stylet may include a stylet needle and a sharp distal tip portion. The stylet needle may be used to insert the system into a body structure, after which the stylet may be disengaged from the cannula. The expandable member may then be exposed and inflated to create a space in the body structure. Filler material may be injected through the cannula to the open space in an effort to stabilize an injured or otherwise destabilized portion of the body structure.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: January 25, 2022
    Assignee: KyphEZE, Inc.
    Inventors: David F. Kallmes, Waleed Brinjikji
  • Publication number: 20210315594
    Abstract: A balloon guiding sheath may include an elongated sheath comprising a proximal end, a distal end, an inner tube, an outer tube surrounding the inner tube, an access port, a distal port, and a working lumen extending through an interior portion of the elongated sheath between the access port and the distal port. The balloon guiding sheath may also include an inflatable balloon located on an outer surface of the elongated sheath adjacent the distal end. The balloon guiding sheath may include a plurality of inflation holes extending through a side wall of the elongated sheath. The elongated sheath may be sized and configured to enable direct insertion into a patient's vasculature through an arteriotomy in at least one of a femoral artery and vertebral artery to position the inflatable balloon at a target site.
    Type: Application
    Filed: April 5, 2021
    Publication date: October 14, 2021
    Inventors: David F. Kallmes, Waleed Brinjikji, Brady Hatcher, Randy Beyreis
  • Publication number: 20210316116
    Abstract: A balloon guiding sheath may include an elongated sheath comprising a proximal end, a distal end, an inner tube, an outer tube surrounding the inner tube, an access port located adjacent the proximal end, a distal port located adjacent the distal end, and a working lumen extending between the access port and the distal port. The balloon guiding sheath may also include an inflatable balloon located on an outer surface of the elongated sheath adjacent the distal end. The balloon guiding sheath may also include a textured surface located along an outer portion of the outer tube and located beneath the inflatable balloon. The elongated sheath may be sized and configured to enable direct insertion into vasculature of a patient through an arteriotomy in at least one of a carotid artery or a vertebral artery to position the inflatable balloon at a target site.
    Type: Application
    Filed: April 5, 2021
    Publication date: October 14, 2021
    Inventors: David F. Kallmes, Waleed Brinjikji, Brady Hatcher, Randy Beyreis
  • Publication number: 20190365445
    Abstract: A needle-mounted balloon system can include a cannula and a stylet. The cannula may include a handle and an outer sheath, and the outer sheath may be configured to retract and expose at least a portion of an expandable member. The stylet may include a stylet needle and a sharp distal tip portion. The stylet needle may be used to insert the system into a body structure, after which the stylet may be disengaged from the cannula. The expandable member may then be exposed and inflated to create a space in the body structure. Filler material may be injected through the cannula to the open space in an effort to stabilize an injured or otherwise destabilized portion of the body structure.
    Type: Application
    Filed: August 16, 2019
    Publication date: December 5, 2019
    Inventors: David F. Kallmes, Waleed Brinjikji
  • Patent number: 10398485
    Abstract: Devices and methods for creating space within a body structure for therapeutic purposes include an expandable member disposed on the distal end portion of a catheter. Such devices and methods can be used, for example, for creating space within bone, and for injecting a filler material such as cement into the space to strengthen, repair, or otherwise enhance the bone structure.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: September 3, 2019
    Assignee: KyphEZE, Inc.
    Inventor: David F. Kallmes
  • Publication number: 20180199971
    Abstract: Devices and methods for creating space within a body structure for therapeutic purposes include an expandable member disposed on the distal end portion of a catheter. Such devices and methods can be used, for example, for creating space within bone, and for injecting a filler material such as cement into the space to strengthen, repair, or otherwise enhance the bone structure.
    Type: Application
    Filed: April 13, 2016
    Publication date: July 19, 2018
    Inventor: David F. Kallmes
  • Patent number: 9349176
    Abstract: A computer-aided system identifies aneurysm suspects in 3D image datasets. The system takes the raw image dataset as input and assigns one or more points of interest (POIs) in the image data. The system determines one or more features for each POI and identifies one or more aneurysm suspects from among the assigned POIs based on the determined features.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: May 24, 2016
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Xiaojiang Yang, Bradley J. Erickson, Daniel J. Blezek, David F. Kallmes
  • Patent number: 8460382
    Abstract: A method and system for fusing a region in the spine involve the use of at least one guide tube to pass instruments and substances into the spinal region in a minimally invasive manner. In the preferred practice of the method, a guide tube is anchored to a vertebra and the guide tube is moved to thereby position the vertebra. A steerable drilling tool is passed through the guide tube and steered into position to abrade at least a portion of an intervertebral disc and thereby create a cavity in the disc. A flowable substance is passed into the cavity and permitted to solidify to establish fusion in the cavity. Optionally, an uninflated balloon is inserted into the cavity and the balloon is filled with the flowable substance to contain the flowable substance.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: June 11, 2013
    Assignee: University of Virginia Patent Foundation
    Inventors: Gregory A. Helm, David F. Kallmes, Gerald R. Hankins, Mary E. Jensen
  • Publication number: 20120201446
    Abstract: A computer-aided system identifies aneurysm suspects in 3D image datasets. The system takes the raw image dataset as input and assigns one or more points of interest (POIs) in the image data. The system determines one or more features for each POI and identifies one or more aneurysm suspects from among the assigned POIs based on the determined features.
    Type: Application
    Filed: July 15, 2010
    Publication date: August 9, 2012
    Applicant: MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCH
    Inventors: Xiaojiang Yang, Bradley J. Erickson, Daniel J. Blezek, David F. Kallmes
  • Publication number: 20110196497
    Abstract: A method and system for fusing a region in the spine involve the use of at least one guide tube to pass instruments and substances into the spinal region in a minimally invasive manner. In the preferred practice of the method, a guide tube is anchored to a vertebra and the guide tube is moved to thereby position the vertebra. A steerable drilling tool is passed through the guide tube and steered into position to abrade at least a portion of an intervertebral disc and thereby create a cavity in the disc. A flowable substance is passed into the cavity and permitted to solidify to establish fusion in the cavity. Optionally, an uninflated balloon is inserted into the cavity and the balloon is filled with the flowable substance to contain the flowable substance.
    Type: Application
    Filed: April 14, 2011
    Publication date: August 11, 2011
    Applicant: UNIVERSITY OF VIRGINIA PATENT FOUNDATION
    Inventors: Gregory A. Helm, David F. Kallmes, Gerald R. Hankins, Mary E. Jensen
  • Patent number: 7947079
    Abstract: A method and system for fusing a region in the spine involve the use of at least one guide tube to pass instruments and substances into the spinal region in a minimally invasive manner. In the preferred practice of the method, a guide tube is anchored to a vertebra and the guide tube is moved to thereby position the vertebra. A steerable drilling tool is passed through the guide tube and steered into position to abrade at least a portion of an intervertebral disc and thereby create a cavity in the disc. A flowable substance is passed into the cavity and permitted to solidify to establish fusion in the cavity. Optionally, an uninflated balloon is inserted into the cavity and the balloon is filled with the flowable substance to contain the flowable substance.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: May 24, 2011
    Assignee: University of Virginia Patent Foundation
    Inventors: Gregory A. Helm, David F. Kallmes, Gerald R. Hankins, Mary E. Jensen
  • Patent number: 6805697
    Abstract: A method and system for fusing a region in the spine involve the use of at least one guide tube (10a) to pass instruments and substances into the spinal region in a minimally invasive manner. In the preferred practice of the method, a guide tube is anchored to a vertebra and the guide tube is moved to thereby position the vertebra. A steerable drilling tool (20a) is passed through the guide tube and steered into position to abrade at least a portion of an intervertebral disc, thereby creating a cavity in the disc. A flowing substance is passed into the cavity and permitted to solidify to establish fusion in the cavity. Optionally, an uninflated balloon (40) is inserted into the cavity and the balloon is filled with the flowing substance to contain the flowing substance.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: October 19, 2004
    Assignee: University of Virginia Patent Foundation
    Inventors: Gregory A. Helm, David F. Kallmes, Gerald R. Hankins, Mary E. Jensen