Patents by Inventor Todd H. Turnlund

Todd H. Turnlund 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: 20130072924
    Abstract: A radio frequency ablation antenna is disclosed. The micro-strip ablation antenna has a dielectric member having a substantially tubular shape. A first conductor is disposed within the dielectric member, and a second conductor is disposed on an outer surface of the dielectric member. The first conductor is configured to be electrically connected to a radio frequency source or ground, and the second conductor is configured to be electrically connected to the other of the radio frequency source or the ground.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 21, 2013
    Applicant: BSD MEDICAL CORPORATION
    Inventors: Robert H. Burgener, Todd H. Turnlund, Chet M. Crump, Kent Moore
  • Patent number: 8292827
    Abstract: Medical devices that include micromachined hypotubes or that have themselves been micromachined can provide advantages in flexibility, strength and other desirable properties. Examples of such medical devices may include catheters such as guide catheters and balloon catheters. Such devices may also include dual shaft medical devices in which an outer shaft is reversibly lockable onto an inner shaft.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: October 23, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Frank A. Musbach, Tracee E. J. Eidenschink, Richard C. Gunderson, Richard J. Olson, Daniel K. Tomaschko, Richard L. Goodin, Todd H. Turnlund, Jason Todd Lenz
  • Patent number: 8257279
    Abstract: Medical devices for navigation through anatomy, including guidewires, which may have a core wire, a slotted tubular member, or both. Embodiments may have coils, including non-circular cross-section edge-wound marker coils, extended coil tips, and soldered or glued mesial joint coils. Core wires may have a step, ridge, or taper at the joints to the tubular member, and may be flattened at the distal tip. Radiopaque material may be located inside the tubular member, and the distal tip may be heat treated to make it shapeable. Additional tubular members or coils may be used concentrically or in line and may enhance flexibility, provide radiopacity, reduce friction, or reduce material or manufacturing cost. Tubular members may be chamfered or tapered continuously or incrementally. Slots may be arranged in groups, such as groups of three, and may be equal in depth or unequal in depth to provide a steerable or compressible tip.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: September 4, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Clark C. Davis, Stephen C. Jacobsen, Clay W. Northrop, Ted W. Layman, Kevin T. Olson, Edward J. Snyder, D. Kent Backman, Todd H. Turnlund
  • Patent number: 8048004
    Abstract: Medical devices for navigation through anatomy, including guidewires, which may have a core wire, a slotted tubular member, or both. Embodiments may have coils, including non-circular cross-section edge-wound marker coils, extended coil tips, and soldered or glued mesial joint coils. Core wires may have a step, ridge, or taper at the joints to the tubular member, and may be flattened at the distal tip. Radiopaque material may be located inside the tubular member, and the distal tip may be heat treated to make it shapeable. Additional tubular members or coils may be used concentrically or in line and may enhance flexibility, provide radiopacity, reduce friction, or reduce material or manufacturing cost. Tubular members may be chamfered or tapered continuously or incrementally. Slots may be arranged in groups, such as groups of three, and may be equal in depth or unequal in depth to provide a steerable or compressible tip.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: November 1, 2011
    Assignee: Precision Vascular Systems, Inc.
    Inventors: Clark C. Davis, Stephen C. Jacobsen, Clay W. Northrop, Ted W. Layman, Kevin T. Olson, Edward J. Snyder, D. Kent Backman, Todd H. Turnlund
  • Patent number: 7878984
    Abstract: Medical devices for navigation through anatomy, including guidewires, which may have a core wire, a slotted tubular member, or both. Embodiments may have coils, including non-circular cross-section edge-wound marker coils, extended coil tips, and soldered or glued mesial joint coils. Core wires may have a step, ridge, or taper at the joints to the tubular member, and may be flattened at the distal tip. Radiopaque material may be located inside the tubular member, and the distal tip may be heat treated to make it shapeable. Additional tubular members or coils may be used concentrically or in line and may end in depth radunequal in depth opacity, reduce friction, or reduce material or manufacturing cod in groups, such as groups of three, and may be equally spaced around the axis or offset to provide a steerable or compressible tip.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: February 1, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Stephen C. Jacobsen, Clark C. Davis, Clay W. Northrop, Ted W. Layman, Kevin T. Olson, Edward J. Snyder, D. Kent Backman, Todd H. Turnlund
  • Publication number: 20100204774
    Abstract: Stent delivery catheters adapted to provide both flexibility and strength are disclosed. Such stent delivery catheters may have outer shafts adapted for tensile strength and inner shafts adapted for compressive strength. In some instances, at least one of the outer shaft and/or the inner shaft may include a micromachined portion.
    Type: Application
    Filed: February 3, 2010
    Publication date: August 12, 2010
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Richard L. Goodin, Richard C. Gunderson, Clark C. Davis, Todd H. Turnlund, John A. Lippert
  • Publication number: 20100198128
    Abstract: A flexible structural apparatus which may be used as a wound covering which extends above the wound such that the wound covering does not contact the wound and also protects the wound from contact. The apparatus provides a high degree of flexibility while retaining structural strength and resisting collapse, for example, so as to adequately protect the wound. Various embodiments include parallel beams and connections between beams that alternate in location along the beams to provide flexibility. Some embodiments may be used as springs and may have attachment features, such as holes, which may be located at the end beams, for example.
    Type: Application
    Filed: February 5, 2010
    Publication date: August 5, 2010
    Inventors: Todd H. Turnlund, Ted W. Layman, Richard A. Glenn
  • Publication number: 20090163945
    Abstract: A vaso-occlusive device comprises a flexible tubular structure configured by creating slots on a tubular structure. The slots are configured such that connecting elements are produced between resulting adjacent segments of the slotted tubular structure. The connecting elements are preferably parallel to the opening within the vaso-occlusive tubular structure. The slotted tubular structure design provides flexibility as well as specific tie points for attachment of thrombogenic fibers.
    Type: Application
    Filed: December 19, 2008
    Publication date: June 25, 2009
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Robert E. Richard, Todd H. Turnlund
  • Publication number: 20090043283
    Abstract: Medical devices and methods for making and using the same. An example medical device may include a tubular member and a liner disposed within the liner. The tubular member may have a plurality of slots formed therein. A space may be defined between the tubular member and the liner. One or more bonding members may be disposed in the space.
    Type: Application
    Filed: August 7, 2007
    Publication date: February 12, 2009
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: TODD H. TURNLUND, WALTER LYNN KERBY
  • Publication number: 20090043228
    Abstract: A laser shock peening process for producing one or more compressive residual stress regions in a medical device is disclosed. A high-energy laser apparatus can be utilized to direct an intense laser beam through a confining medium and onto the target surface of a workpiece. An absorption overlay disposed on the target surface of the workpiece absorbs the laser beam, inducing a pressure shock wave that forms a compressive residual stress region deep within the workpiece. Medical devices such as stents, guidewires, catheters, and the like having one or more of these compressive residual stress regions are also disclosed.
    Type: Application
    Filed: August 6, 2007
    Publication date: February 12, 2009
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: CLAY W. NORTHROP, TED W. LAYMAN, TODD H. TURNLUND
  • Publication number: 20040181174
    Abstract: Medical devices for navigation through anatomy, including guidewires, which may have a core wire, a slotted tubular member, or both. Embodiments may have coils, including non-circular cross-section edge-wound marker coils, extended coil tips, and soldered or glued mesial joint coils. Core wires may have a step, ridge, or taper at the joints to the tubular member, and may be flattened at the distal tip. Radiopaque material may be located inside the tubular member, and the distal tip may be heat treated to make it shapeable. Additional tubular members or coils may be used concentrically or in line and may enhance flexibility, provide radiopacity, reduce friction, or reduce material or manufacturing cost. Tubular members may be chamfered or tapered continuously or incrementally. Slots may be arranged in groups, such as groups of three, and may be equal in depth or unequal in depth to provide a steerable or compressible tip.
    Type: Application
    Filed: July 25, 2003
    Publication date: September 16, 2004
    Applicant: Precision Vascular Systems, Inc.
    Inventors: Clark C Davis, Clay W. Northrop, Ted W. Layman, Kevin T. Olson, Edward J. Snyder, D. Kent Backman, Todd H. Turnlund
  • Publication number: 20040111044
    Abstract: Medical devices for navigation through anatomy, including guidewires, which may have a core wire, a slotted tubular member, or both. Embodiments may have coils, including non-circular cross-section edge-wound marker coils, extended coil tips, and soldered or glued mesial joint coils. Core wires may have a step, ridge, or taper at the joints to the tubular member, and may be flattened at the distal tip. Radiopaque material may be located inside the tubular member, and the distal tip may be heat treated to make it shapeable. Additional tubular members or coils may be used concentrically or in line and may enh in depth radunequal in depth opacity, reduce friction, or reduce material or manufacturing cod in groups, such as groups of three, and may be equally spaced around the axis or offset to provide a steerable or compressible tip.
    Type: Application
    Filed: July 25, 2003
    Publication date: June 10, 2004
    Applicant: PRECISION VASCULAR SYSTEMS, INC.
    Inventors: Clark C. Davis, Clay W. Northrop, Ted W. Layman, Kevin T. Olson, Edward J. Snyder, Todd H. Turnlund, D. Kent Backman
  • Patent number: 6554758
    Abstract: A method for increasing the rate of thrombus formation and/or proliferative cell growth of a selected region (21) of cellular tissue (22) including the step of endovascularly irradiating the selected region (21) with radiation, having a dose range of endovascular radiation of about 1 Gy to about 600 Gy at a low dose rate of about 1 cGy/hr to about 320 cGy/hr, to increase thrombus formation and/or cell proliferation of the affected selected region (21). Preferably, the delivery means includes a deformable endovascular prosthesis (25) adapted for secured positioning adjacent to the selected region (21) of cellular tissue (22), and a radioactive source. This source cooperates with the deformable endovascular device (25) in a manner endovascularly irradiating the selected region with radiation, having the above-indicated dose range and low dose rate of endovascular radiation to increase thrombus formation and/or cell proliferation of the affected selected region (21).
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: April 29, 2003
    Assignee: IsoStent, Inc.
    Inventors: Todd H. Turnlund, William L. Sweet
  • Publication number: 20030009208
    Abstract: A medical device or intravascular device, and methods of use. The devices may be tubular and may have a flexible polymer tip The body may be nitinol and may have cuts part way through along its length to facilitate bending The device may have a liner which may extend through the tip or form the tip The device may have markers readily visible on an X-ray viewer during insertion. The tip may have an anti-collapsing structure and may be shaped before use to perform a medical procedure such as treating an aneurysm. The device may have a strong fiber through it for complete removal. The method may include selecting the device, bending the tip, setting the shape, and inserting the device into the patient's anatomy. The shape of the tip may be set by heating with steam and then removing a mandrel.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 9, 2003
    Applicant: PRECISION VASCULAR SYSTEMS, INC.
    Inventors: Edward J. Snyder, Clark C. Davis, Todd H. Turnlund
  • Patent number: 6309383
    Abstract: A stent crimping apparatus for crimping a deformable radioactive stent onto a deployment device which includes a first jaw member defining a shielded first compression surface, and an opposed, second jaw member defining a shielded second compression surface oriented opposite the first compression surface. The first and second compression surfaces are adapted to collectively form an elongated guide bore formed for axial receipt of the deformable stent and the deployment device therein. To protect against exposure to the radioactive stent, a shield assembly is provided defining an opening into a bore therein which is formed and dimensioned for longitudinal receipt of the deformable stent in an uncrimped condition. A shield assembly defines an opening into the bore, and cooperates with the first and second jaw members to substantially prevent radioactive particles emitted by the radioactive stent from passing out of the crimping apparatus.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: October 30, 2001
    Assignee: IsoStent, Inc.
    Inventors: Thomas H. Campbell, Todd H. Turnlund, Robert T. Chang
  • Patent number: 6296603
    Abstract: A method for increasing the rate of thrombus formation and/or proliferative cell growth of a selected region (21) of cellular tissue (22) including the step of endovascularly irradiating the selected region (21) with radiation, having a dose range of endovascular radiation of about 1 Gy to about 600 Gy at a low dose rate of about 1 cGy/hr to about 320 cGy/hr, to increase thrombus formation and/or cell proliferation of the affected selected region (21). Preferably, the delivery means includes a deformable endovascular prosthesis (25) adapted for secured positioning adjacent to the selected region (21) of cellular tissue (22), and a radioactive source. This source cooperates with the deformable endovascular device (25) in a manner endovascularly irradiating the selected region with radiation, having the above-indicated dose range and low dose rate of endovascular radiation to increase thrombus formation and/or cell proliferation of the affected selected region (21).
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: October 2, 2001
    Assignee: IsoStent, Inc.
    Inventors: Todd H. Turnlund, William L. Sweet
  • Publication number: 20010001806
    Abstract: A method for increasing the rate of thrombus formation and/or proliferative cell growth of a selected region (21) of cellular tissue (22) including the step of endovascularly irradiating the selected region (21) with radiation, having a dose range of endovascular radiation of about 1 Gy to about 600 Gy at a low dose rate of about 1 cGy/hr to about 320 cGy/hr, to increase thrombus formation and/or cell proliferation of the affected selected region (21). Preferably, the delivery means includes a deformable endovascular prosthesis (25) adapted for secured positioning adjacent to the selected region (21) of cellular tissue (22), and a radioactive source. This source cooperates with the deformable endovascular device (25) in a manner endovascularly irradiating the selected region with radiation, having the above-indicated dose range and low dose rate of endovascular radiation to increase thrombus formation and/or cell proliferation of the affected selected region (21).
    Type: Application
    Filed: January 5, 2001
    Publication date: May 24, 2001
    Applicant: IsoStent, Inc.
    Inventors: Todd H. Turnlund, William L. Sweet
  • Patent number: 6190303
    Abstract: A radiation shield assembly (30) for a radioactive stent (11) mounted onto a deployment portion (20) of a delivery apparatus (12) including a relatively thin, elongated tube member (69) having a wall (70) defining a receiving passage (72) formed and dimensioned for axial receipt of the stent mounted onto the deployment portion therein to substantially prevent direct contact with the stent (11). A removal structure (71) cooperating with the wall (70) of the tube member (69) for longitudinal severing thereof to enable selective removal of the tube member from the delivery apparatus (12) for deployment use thereof.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: February 20, 2001
    Assignee: IsoStent, Inc.
    Inventors: Richard A. Glenn, Thomas H. Campbell, Todd H. Turnlund
  • Patent number: 6074381
    Abstract: A stent loading apparatus for loading a deformable stent onto a deployment device. The stent loading apparatus includes an elastic member defining a passage therein formed for longitudinal receipt of the deformable stent in an uncrimped condition. A first member includes a first compression region; and a second member includes a second compression region positioned substantially adjacent the first compression region at a first position. At this first position, the elastic member and the deformable stent in the uncrimped condition may be received between the opposed first and second compression regions. The first compression region and the second compression region are further configured to provide rolling support and compression of the elastic member during relative movement between the first position and a second position for rolling radial compression of the deformable stent onto the deployment device.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: June 13, 2000
    Assignee: IsoStent, Inc.
    Inventors: Minh Q. Dinh, Todd H. Turnlund, Thomas H. Campbell
  • Patent number: 6027526
    Abstract: The invention is directed to an expandable stent for implanting in a body lumen, such as a coronary artery. The stent has an open lattice structure and is constructed so that at least one end section has a thicker cross-section and corresponding greater radial strength than the remaining sections of the stent.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: February 22, 2000
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Timothy A. Limon, Todd H. Turnlund