Patents by Inventor David Sogard
David Sogard 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).
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Publication number: 20170273741Abstract: An elongated flexible medical device is inserted into a patient's body via a natural orifice, and advanced through the natural orifice to a location proximate innervated tissue that influences renal sympathetic nerve activity. The medical device can be advanced into a body organ and to a location within the organ proximate the innervated tissue. The organ may comprise an organ of the gastrointestinal tract or urinary tract. The medical device may be advanced through and beyond an access hole in a wall of the organ, and situated at a location proximate the innervated tissue. One or both of imaging and ablation energy is delivered from a distal end of the medical device to the innervated tissue. Innervated renal tissue can be ablated using various forms of energy, including RF energy, ultrasound energy, optical energy, and thermal energy.Type: ApplicationFiled: May 2, 2017Publication date: September 28, 2017Inventors: David Sogard, Scott Smith, Mark L. Jenson
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Patent number: 9023034Abstract: An electrode is provided at a distal end of a catheter and dimensioned for deployment within a renal artery. A deformable cover of the electrode incorporates a force-activatable conduction apparatus. The cover is configured to conduct electrical energy only through a region or regions of the cover subject to deformation due to contact with a wall of the target vessel. The electrical energy is sufficient to ablate perivascular renal nerves proximate the deformed region or regions of the electrode cover. The cover is configured to prevent conduction of electrical energy through the cover in the absence of a deformation force applied to the cover.Type: GrantFiled: November 22, 2011Date of Patent: May 5, 2015Assignee: Boston Scientific Scimed, Inc.Inventors: Mark L. Jenson, Scott Smith, David Sogard
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Publication number: 20120172870Abstract: An electrode is provided at a distal end of a catheter and dimensioned for deployment within a renal artery. A deformable cover of the electrode incorporates a force-activatable conduction apparatus. The cover is configured to conduct electrical energy only through a region or regions of the cover subject to deformation due to contact with a wall of the target vessel. The electrical energy is sufficient to ablate perivascular renal nerves proximate the deformed region or regions of the electrode cover. The cover is configured to prevent conduction of electrical energy through the cover in the absence of a deformation force applied to the cover.Type: ApplicationFiled: November 22, 2011Publication date: July 5, 2012Inventors: Mark L. Jenson, Scott Smith, David Sogard
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Publication number: 20120123303Abstract: An elongated flexible medical device is inserted into a patient's body via a natural orifice, and advanced through the natural orifice to a location proximate innervated tissue that influences renal sympathetic nerve activity. The medical device can be advanced into a body organ and to a location within the organ proximate the innervated tissue. The organ may comprise an organ of the gastrointestinal tract or urinary tract. The medical device may be advanced through and beyond an access hole in a wall of the organ, and situated at a location proximate the innervated tissue. One or both of imaging and ablation energy is delivered from a distal end of the medical device to the innervated tissue. Innervated renal tissue can be ablated using various forms of energy, including RF energy, ultrasound energy, optical energy, and thermal energy.Type: ApplicationFiled: September 23, 2011Publication date: May 17, 2012Inventors: David Sogard, Scott Smith, Mark L. Jenson
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Publication number: 20100331760Abstract: A biodegradable implant for iontophoretic therapeutic agent delivery is provided. The implant comprises a biodegradable battery and at least one biodegradable iontophoresis electrode assembly. The biodegradable battery comprises first and second biodegradable electrodes and a biodegradable polymer electrolyte layer between the first and second biodegradable electrodes. The biodegradable iontophoresis electrode assembly comprises a biodegradable iontophoresis electrode and a charged therapeutic agent. When the biodegradable battery is electrically connected to generate an electric current through the biodegradable iontophoresis electrode assembly, the charged therapeutic agent is delivered by iontophoresis to a target location. The charged therapeutic agent may be a scavenger for reactive oxygen species. The electrical connection of the biodegradable battery may be controlled remotely.Type: ApplicationFiled: June 29, 2010Publication date: December 30, 2010Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Liliana ATANASOSKA, Aiden FLANAGAN, Kent HARRISON, Liza DAVIS, David SOGARD
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Publication number: 20100331775Abstract: In one embodiment, the present disclosure provides a biodegradable, self-powered medical device for preventing or reducing reperfusion injury, comprising a galvanic cell, the galvanic cell comprising: a first biodegradable electrode member; and a second biodegradable electrode member comprising a biodegradable conductive polymer and an electrode-releasable therapeutic agent, wherein the galvanic cell generates an electric force sufficient to cause the electrode-releasable therapeutic agent to be released from the biodegradable conductive polymer and elute to a target location. The device may further include a reservoir material containing a burst-release therapeutic agent.Type: ApplicationFiled: June 29, 2010Publication date: December 30, 2010Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Liliana ATANASOSKA, Aiden FLANAGAN, Liza DAVIS, Kent HARRISON, David SOGARD
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Publication number: 20100269838Abstract: A system for delivering therapeutic agent to a target location in a body in accordance with one embodiment is provided comprising a plurality of magnetic particles, each magnetic particle carrying a therapeutic agent, and a magnetic device for attracting the magnetic particles to a target location. The magnetic particles may be delivered by a catheter into a blood vessel upstream from the target location so that they travel toward the target location. A method for delivering therapeutic agent to a target location in a body in accordance with another embodiment comprises providing a plurality of magnetic particles, each magnetic particle carrying a therapeutic agent, placing a magnetic device in a position to attract the magnetic particles to a target location, and allowing the magnetic particles to infuse the target location by the attraction of the magnetic particles to the magnetic device.Type: ApplicationFiled: April 22, 2010Publication date: October 28, 2010Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Aiden Flanagan, Kent Harrison, Liliana Atanasoska, David Sogard, Liza Davis
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Patent number: 7550003Abstract: A method and apparatus for forming a covered endoprosthesis employs a conformed polymeric coating about an expandable stent. The expandable stent has an open tubular construction. A first polymeric liner is positioned about an inner surface of the tubular stent and a second polymeric liner is positioned about an outer surface of the tubular stent. The first and second polymeric liners are conformed to the tubular stent and laminated together through the open construction of the stent at a location coextensive with the inner surface of the tubular stent.Type: GrantFiled: July 23, 2002Date of Patent: June 23, 2009Assignee: Boston Scientific Scimed, Inc.Inventors: David Sogard, Susan Shoemaker, Jason Hill, Bruce A. Parsons
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Publication number: 20070173930Abstract: Methods, apparatus, and systems for altering the configuration of a heart valve. Methods, apparatus, and systems include the use of a cord delivered into the heart by a delivery catheter that can be manipulated by a receiving catheter so as to improve the heart valve function.Type: ApplicationFiled: January 20, 2006Publication date: July 26, 2007Inventors: David Sogard, Kent Harrison, Leonard Richardson
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Publication number: 20070129788Abstract: A venous valve-with a structural member and valve leaflets that provide a sinus.Type: ApplicationFiled: January 11, 2007Publication date: June 7, 2007Inventors: William Drasler, Mark Jenson, Jason Hill, David Sogard, Patrick Haverkost, Susan Shoemaker
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Publication number: 20070060858Abstract: Methods, apparatus, and systems for occluding a multiplicity of parallel membranes, such as found in a patent foramen ovale (PFO). Methods, apparatus, and systems include the use of a positioning device that can be seated on the limbus of the septum secundum (SS). The positioning device includes a piercing member that can pierce the SS and septum primum (SP). The positioning device also includes a fastening member that can engage the SS and SP to fasten the tissues and thereby occlude a PFO.Type: ApplicationFiled: August 19, 2005Publication date: March 15, 2007Inventors: David Sogard, Leonard Richardson, Kent Harrison, Diane Sheahen
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Publication number: 20070043318Abstract: Methods, apparatus, and systems for locating a patent foramen ovale (PFO) with a positioning device that can be configured to occlude the PFO. Methods, apparatus, and systems include the use of a positioning device that can be seated on the limbus of a septum secundum (SS). The positioning device includes a piercing member that can pierce the SS and a septum primum.Type: ApplicationFiled: August 19, 2005Publication date: February 22, 2007Inventors: David Sogard, Leonard Richardson, Kent Harrison, Diane Sheahen
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Publication number: 20070032862Abstract: In some embodiments, a method can include delivering an electrically conductive coil into a lumen of a subject. In certain embodiments, the method can further include delivering at least a portion of an endoprosthesis into a lumen of the electrically conductive coil. In some embodiments, the method may enhance the MRI visibility of material within a lumen of the endoprosthesis.Type: ApplicationFiled: March 22, 2006Publication date: February 8, 2007Inventors: Jan Weber, David Sogard, David Friesen, John Blix
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Publication number: 20060142796Abstract: Improved methods and apparatus for capturing emboli and subsequently removing or immobilizing the captured emboli are described. Emboli can be captured within a blood vessel and can be withdrawn to a position exterior to the blood vessel. Some filters can remain within a blood vessel yet direct emboli to a position exterior to the blood vessel.Type: ApplicationFiled: December 23, 2004Publication date: June 29, 2006Inventors: Jan Weber, Tracee Eidenschink, David Sogard, Joel WasDyke, Thomas Holman
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Publication number: 20060015135Abstract: A medical device delivery system, having a rolling retractable sheath covering a medical device mounting region on the system is disclosed. The rolling retractable sheath comprises an inner wall and an outer wall and may be formed of one or more materials, optionally porous. Optionally, a lubricant may be applied selectively to the interior and exterior walls of the stent.Type: ApplicationFiled: September 12, 2005Publication date: January 19, 2006Inventors: Anthony Vrba, Lance Monroe, Scott Smith, David Sogard
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Publication number: 20050042402Abstract: The present invention provides an apparatus and method for manufacturing polymeric thin-walled tubular members, which are well-suited for use as vascular grafts. The apparatus of the present invention enables extrusion of a tubular member having an extremely thin wall thickness so as to facilitate passage through tortuous vascular passageways. The apparatus achieves uniform wall thickness in a tubular member by establishing and maintaining axial alignment of a ram having a concentrically disposed guide rod therein with a die supported in concentric relation to the guide rod.Type: ApplicationFiled: September 22, 2004Publication date: February 24, 2005Inventors: James Venditti, Howard Wolek, Alice Wong, David Sogard, Jason Hill, Timothy Girton, Christopher Brodeur
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Patent number: 6790221Abstract: Methods for making a loaded catheter assembly for delivering a self-expanding stent where the self-expanding stent is carried in a compressed state and the compressed stent has an inside diameter smaller than the outside diameter of the catheter distal tip. The methods can utilize catheter sub-assemblies lacking already attached tips or having partially formed distal tips. A stent can be proximally and co-axially slid over the distal end of the catheter shaft and constrained by a retractable sheath disposed co-axially about the compressed stent. The catheter distal tip can be added or more fully formed after the loading of the stent. Some catheters include a preformed distal conical tip held in position by a heat-shrink film. Other catheters have an elastomeric distal tip waist for slipping over and engaging an outward projection on the catheter shaft distal region. Some catheters are adapted to engage catheter shaft distal threaded regions.Type: GrantFiled: November 7, 2001Date of Patent: September 14, 2004Assignee: SciMed Life Systems, Inc.Inventors: Lance A. Monroe, Andrew D. Bicek, Joel Phillips, Joel R. Munsinger, David Sogard
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Patent number: 6699276Abstract: The present invention relates to a support structure/membrane composite device which includes a support structure, such as a radially expandable stent, a porous non-textile polymeric membrane adjacent to said stent and a thermoplastic anchor means attaching said stent to said porous non-textile polymeric membrane. The porous non-textile polymeric membrane is preferably made from expandable fluoropolymer materials. The anchoring means is a thermoplastic material which is dissolvable at the interface between the support structure and membrane by a suitable solvent which wets the membrane surface and deposits the thermoplastic material within the pores of the membrane. Methods of preparing the device are also disclosed.Type: GrantFiled: February 16, 2000Date of Patent: March 2, 2004Assignee: SciMed Life Systems, Inc.Inventors: David Sogard, Susan Shoemaker, Scott R. Smith
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Publication number: 20020178570Abstract: A method and apparatus for forming a covered endoprosthesis employs a conformed polymeric coating about an expandable stent. The expandable stent has an open tubular construction. A first polymeric liner is positioned about an inner surface of the tubular stent and a second polymeric liner is positioned about an outer surface of the tubular stent. The first and second polymeric liners are conformed to the tubular stent and laminated together through the open construction of the stent at a location coextensive with the inner surface of the tubular stent.Type: ApplicationFiled: July 23, 2002Publication date: December 5, 2002Applicant: Scimed Liffe Systems, Inc.Inventors: David Sogard, Susan Shoemaker, Jason Hill, Bruce A. Parsons
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Publication number: 20020052641Abstract: Methods for making a loaded catheter assembly for delivering a self-expanding stent where the self-expanding stent is carried in a compressed state and the compressed stent has an inside diameter smaller than the outside diameter of the catheter distal tip. The methods can utilize catheter sub-assemblies lacking already attached tips or having partially formed distal tips. A stent can be proximally and co-axially slid over the distal end of the catheter shaft and constrained by a retractable sheath disposed co-axially about the compressed stent. The catheter distal tip can be added or more fully formed after the loading of the stent. Some catheters include a preformed distal conical tip held in position by a heat-shrink film. Other catheters have an elastomeric distal tip waist for slipping over and engaging an outward projection on the catheter shaft distal region. Some catheters are adapted to engage catheter shaft distal threaded regions.Type: ApplicationFiled: November 7, 2001Publication date: May 2, 2002Applicant: SciMed Life Systems, Inc.Inventors: Lance A. Monroe, Andrew D. Bicek, Joel Phillips, Joel R. Munsinger, David Sogard