Patents by Inventor Philip C. Evard

Philip C. Evard 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: 20190105480
    Abstract: Balloon catheter, guide catheter and method for dilating openings in paranasal sinuses. A non-removable guide member (e.g., guidewire) extends from the distal end of the balloon catheter. The non-removable guide member initially passes through the opening of the paranasal sinus and is followed by the catheter body on which the balloon is mounted. The balloon is then inflated causing dilation of the opening of the paranasal sinus. In some embodiments, the non-removable guide member may be shapeable so that the operator may place the non-removable guide member in a desired shape prior to insertion of the balloon catheter. In some embodiments, the length of the non-removable guide member may be adjustable such that the operator may adjust the length of the non-removable guide member prior to insertion of the balloon catheter.
    Type: Application
    Filed: October 10, 2018
    Publication date: April 11, 2019
    Inventors: Philip C. Evard, Ketan P. Muni, John H. Morriss, John Y. Chang
  • Patent number: 10124154
    Abstract: Balloon catheter, guide catheter and method for dilating openings in paranasal sinuses. A non-removable guide member (e.g., guidewire) extends from the distal end of the balloon catheter. The non-removable guide member initially passes through the opening of the paranasal sinus and is followed by the catheter body on which the balloon is mounted. The balloon is then inflated causing dilation of the opening of the paranasal sinus. In some embodiments, the non-removable guide member may be shapeable so that the operator may place the non-removable guide member in a desired shape prior to insertion of the balloon catheter. In some embodiments, the length of the non-removable guide member may be adjustable such that the operator may adjust the length of the non-removable guide member prior to insertion of the balloon catheter.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: November 13, 2018
    Assignee: Acclarent, Inc.
    Inventors: Philip C. Evard, Ketan P. Muni, John H. Morriss, John Y Chang
  • Patent number: 9345858
    Abstract: A system of catheter devices and methods for forming channels or passageways between a luminal anatomical structure (e.g., a blood vessel) and a target location (e.g., another blood vessel, an organ, a mass of tissue, etc.) for the purpose of rerouting blood flow or for delivering a substance or instrument, etc. to the target location.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: May 24, 2016
    Assignee: Medtronic Vascular, Inc.
    Inventors: J. Christopher Flaherty, Jason B. Whitt, Patrick E. Macaulay, David R. Tholfsen, John T. Garibotto, Philip C. Evard, Joshua Makower
  • Publication number: 20150165175
    Abstract: Balloon catheter, guide catheter and method for dilating openings in paranasal sinuses. A non-removable guide member (e.g., guidewire) extends from the distal end of the balloon catheter. The non-removable guide member initially passes through the opening of the paranasal sinus and is followed by the catheter body on which the balloon is mounted. The balloon is then inflated causing dilation of the opening of the paranasal sinus. In some embodiments, the non-removable guide member may be shapeable so that the operator may place the non-removable guide member in a desired shape prior to insertion of the balloon catheter. In some embodiments, the length of the non-removable guide member may be adjustable such that the operator may adjust the length of the non-removable guide member prior to insertion of the balloon catheter.
    Type: Application
    Filed: December 11, 2014
    Publication date: June 18, 2015
    Inventors: Philip C. Evard, Ketan P. Muni, John H. Morriss, John Y. Chang
  • Publication number: 20140180098
    Abstract: A catheter device that is useable to penetrate from a blood vessel in which the catheter device is positioned to a target location comprises a flexible catheter advanceable into the first blood vessel, a tissue penetrator lumen adapted to receive an operative tissue penetrator which is usable to penetrate from the blood vessel to the target location when properly aimed. Further said catheter including an imaging transducer fixedly mounted on or within the catheter body to provide an imaging signal from which an image of the target location can be obtained. The catheter device may include an imageable marker on the catheter to form on the image obtainable from the imaging signal a penetrator path indication that indicates the path that will be followed by the tissue penetrator when the tissue penetrator exits from the catheter. Alternatively, or addition thereto, the imaging transducer may comprise a plurality of imaging elements which are located so that the penetrator path indication can be obtained.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 26, 2014
    Applicant: MEDTRONIC VASCULAR, INC.
    Inventors: Christopher J. Flaherty, Jason B. Whitt, John Y. Chang, David R. Tholfsen, Philip C. Evard, Joshua Makower
  • Publication number: 20140180222
    Abstract: A system of catheter devices and methods for forming channels or passageways between a luminal anatomical structure (e.g., a blood vessel) and a target location (e.g., another blood vessel, an organ, a mass of tissue, etc.) for the purpose of rerouting blood flow or for delivering a substance or instrument, etc. to the target location.
    Type: Application
    Filed: August 15, 2013
    Publication date: June 26, 2014
    Applicant: Medtronic Vascular, Inc.
    Inventors: J. Christopher Flaherty, Jason B. Whitt, Patrick E. Macaulay, David R. Tholfsen, John T. Garibotto, Philip C. Evard, Joshua Makower
  • Patent number: 8727988
    Abstract: Devices and methods for penetrating from a vessel lumen in which a catheter device is positioned to a target location outside of that vessel lumen. A tissue penetrator advances from a catheter positioned within the vessel lumen to the target location when properly aimed. An imaging transducer fixedly mounted on or within the catheter body provides an imaging signal from which an image of the target location can be obtained. An imageable marker may be present on the catheter to form on the image obtainable from the imaging signal to predict the path that will be followed by the tissue penetrator when the tissue penetrator exits from the catheter. Alternatively, or addition thereto, the imaging transducer may comprise a plurality of imaging elements which are located so that the penetrator path indication can be obtained electronically without use of an imageable marker on the catheter.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: May 20, 2014
    Assignee: Medtronic Vascular, Inc.
    Inventors: Christopher J. Flaherty, Jason B. Whitt, John Y. Chang, David R. Tholfsen, Philip C. Evard, Joshua Makower
  • Patent number: 8585596
    Abstract: A system of catheter devices and methods for forming channels or passageways between a luminal anatomical structure (e.g., a blood vessel) and a target location (e.g., another blood vessel, an organ, a mass of tissue, etc.) for the purpose of rerouting blood flow or for delivering a substance or instrument, etc. to the target location.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: November 19, 2013
    Assignee: Medtronic Vascular, Inc.
    Inventors: J. Christopher Flaherty, Jason B. Whitt, Patrick E. Macaulay, David R. Tholfsen, John T. Garibotto, Philip C. Evard, Joshua Makower
  • Patent number: 8540694
    Abstract: Systems and methods for delivering drugs or other substances to target locations outside of blood vessel lumens or other body lumens. In some embodiments, a catheter having a penetrator is advanced into the body lumen and the penetrator is then advanced from the catheter toward a target location outside of that body lumen. The substance is then delivered through a the penetrator itself or through a delivery catheter that has been advanced through the penetrator to the target location. In other embodiments, the blood vessel or other body lumen is blocked at spaced-apart first and second locations and a quantity of the substance is introduced into the closed-off body lumen between the blocked first and second locations. The substance then diffuses into or through the wall of the vessel or body conduit to reach the target location.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: September 24, 2013
    Assignee: Medtronic Vascular, Inc.
    Inventors: J. Christopher Flaherty, Joshua Makower, Philip C. Evard, Patrick E. Macaulay, Jason B. Whitt, Robert C. Colloton, K. Angela Macfarlane
  • Publication number: 20120172838
    Abstract: Systems and methods for delivering drugs or other substances to target locations outside of blood vessel lumens or other body lumens. In some embodiments, a catheter having a penetrator is advanced into the body lumen and the penetrator is then advanced from the catheter toward a target location outside of that body lumen. The substance is then delivered through a the penetrator itself or through a delivery catheter that has been advanced through the penetrator to the target location. In other embodiments, the blood vessel or other body lumen is blocked at spaced-apart first and second locations and a quantity of the substance is introduced into the closed-off body lumen between the blocked first and second locations. The substance then diffuses into or through the wall of the vessel or body conduit to reach the target location.
    Type: Application
    Filed: December 27, 2011
    Publication date: July 5, 2012
    Applicant: MEDTRONIC VASCULAR, INC.
    Inventors: J. Christopher Flaherty, Joshua Makower, Philip C. Evard, Patrick E. Macaulay, Jason B. Whitt, Robert C. Colloton, K. Angela Macfarlane
  • Publication number: 20110224596
    Abstract: A catheter device that is useable to penetrate from a blood vessel in which the catheter device is positioned to a target location comprises a flexible catheter advanceable into the first blood vessel, a tissue penetrator lumen adapted to receive an operative tissue penetrator which is usable to penetrate from the blood vessel to the target location when properly aimed. Further said catheter including an imaging transducer fixedly mounted on or within the catheter body to provide an imaging signal from which an image of the target location can be obtained. The catheter device may include an imageable marker on the catheter to form on the image obtainable from the imaging signal a penetrator path indication that indicates the path that will be followed by the tissue penetrator when the tissue penetrator exits from the catheter. Alternatively, or addition thereto, the imaging transducer may comprise a plurality of imaging elements which are located so that the penetrator path indication can be obtained.
    Type: Application
    Filed: May 24, 2011
    Publication date: September 15, 2011
    Applicant: MEDTRONIC VASCULAR,INC.
    Inventors: J Christopher Flaherty, Jason B. Whitt, John Y. Chang, David R. Tholfsen, Philip C. Evard, Joshua Makower
  • Publication number: 20100121357
    Abstract: A catheter device that is useable to penetrate from a blood vessel in which the catheter device is positioned to a target location comprises a flexible catheter advanceable into the first blood vessel, a tissue penetrator lumen adapted to receive an operative tissue penetrator which is usable to penetrate from the blood vessel to the target location when properly aimed. Further said catheter including an imaging transducer fixedly mounted on or within the catheter body to provide an imaging signal from which an image of the target location can be obtained. The catheter device may include an imageable marker on the catheter to form on the image obtainable from the imaging signal a penetrator path indication that indicates the path that will be followed by the tissue penetrator when the tissue penetrator exits from the catheter. Alternatively, or addition thereto, the imaging transducer may comprise a plurality of imaging elements which are located so that the penetrator path indication can be obtained.
    Type: Application
    Filed: December 10, 2009
    Publication date: May 13, 2010
    Applicant: Medtronic Vascular, Inc.
    Inventors: J. Christopher Flaherty, Jason B. Whitt, John Y. Chang, David R. Tholfsen, Philip C. Evard, Joshua Makower
  • Patent number: 7637870
    Abstract: A catheter device that is useable to penetrate from a blood vessel in which the catheter device is positioned to a target location comprises a flexible catheter advanceable into the first blood vessel, a tissue penetrator lumen adapted to receive an operative tissue penetrator which is usable to penetrate from the blood vessel to the target location when properly aimed. Further said catheter including an imaging transducer fixedly mounted on or within the catheter body to provide an imaging signal from which an image of the target location can be obtained. The catheter device may include an imageable marker on the catheter to form on the image obtainable from the imaging signal a penetrator path indication that indicates the path that will be followed by the tissue penetrator when the tissue penetrator exits from the catheter. Alternatively, or addition thereto, the imaging transducer may comprise a plurality of imaging elements which are located so that the penetrator path indication can be obtained.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: December 29, 2009
    Assignee: Medtronic Vascular, Inc.
    Inventors: J. Christopher Flaherty, Jason B. Whitt, John Y. Chang, David R. Tholfsen, Philip C. Evard, Joshua Makower
  • Patent number: 7303571
    Abstract: Methods and apparatus for occluding blood flow within a blood vessel. In a first series of embodiments, the present invention comprises a plurality of embolic devices deployable through the lumen of a conventional catheter such that when deployed, said embolic devices remain resident and occlude blood flow at a specific site within the lumen of the blood vessel. Such embolic devices comprise either mechanical embolic devices that become embedded within or compress against the lumen of the vessel or chemical vaso-occlusive agents that seal off blood flow at a given site. A second embodiment of the present invention comprises utilization of a vacuum/cauterizing device capable of sucking in the lumen of the vessel about the device to maintain the vessel in a closed condition where there is then applied a sufficient amount of energy to cause the tissue collapsed about the device to denature into a closure.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: December 4, 2007
    Assignee: Medtronic Vascular, Inc.
    Inventors: Joshua Makower, J. C. Flaherty, Timothy R. Machold, Jason B. Whitt, Philip C. Evard, Patrick E. Macaulay, John T. Garibotto, Marc Jensen
  • Patent number: 7094230
    Abstract: An implantable reservoir device (400) including an enclosed membrane (408) on an expandable frame (402) that defines a reservoir (410) and includes a porous region (418). The reservoir device (400) may be deployed and expanded within a blood vessel, and may be filled in situ or prefilled with a drug that passes through the porous region (418). Alternatively, a pair of expandable endovascular blockers (500) may be used to isolate a section of a blood vessel which may be filled with a drug that may be absorbed by the surrounding tissue.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: August 22, 2006
    Assignee: Medtronic Vascular, Inc.
    Inventors: J. Christopher Flaherty, Joshua Makower, Philip C. Evard, Patrick E. MacAulay, Jason B. Whitt, Robert C. Colloton, K. Angela Macfarlane
  • Patent number: 6913601
    Abstract: A catheter system is provided for accessing the coronary ostia transluminally from a peripheral arterial access site, such as the femoral artery, and for inducing cardioplegic arrest by direct infusion of cardioplegic solution into the coronary arteries. In a first embodiment, the catheter system is in the form of a single perfusion catheter with multiple distal branches for engaging the coronary ostia. In a second embodiment, multiple perfusion catheters are delivered to the coronary ostia through a single arterial cannula. In a third embodiment, multiple perfusion catheters are delivered to the coronary ostia through a single guiding catheter. In a fourth embodiment, multiple catheters are delivered to the coronary ostia through a single guiding catheter which has distal exit ports that are arranged to direct the perfusion catheters into the coronary ostia.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: July 5, 2005
    Assignee: Heartport, Inc.
    Inventors: Frederick G. St. Goar, William S. Peters, Philip C. Evard, Stephen W. Boyd, Craig L. Adams, Richard L. Mueller, Jr., John H. Stevens
  • Publication number: 20040133154
    Abstract: A transvascular system (10) for delivering a drug to a tissue region from a blood vessel, such as a coronary vein, includes a catheter (12) having a distal portion (26) with puncturing (14), orientation (16), drug delivery (62), and imaging elements (18). The puncturing element (14) is deployable for penetrating the vessel wall to access the tissue region. The orientation element (16), e.g. a “cage” including a plurality of struts (38)(40) and/or a radiopaque marker, has a predetermined relationship with the puncturing element (14), the imaging element (18) detecting the location of the orientation element (16) with respect to the tissue region to orient the puncturing element. The catheter (12) is percutaneously introducing into the vessel, the puncturing element (14) is oriented towards the tissue region, the puncturing element (14) is deployed to access the tissue region, and the drug is delivered to the tissue region.
    Type: Application
    Filed: December 16, 2003
    Publication date: July 8, 2004
    Inventors: J. Christopher Flaherty, Joshua Makower, Philip C. Evard, Patrick E. MacAulay, Jason B. Whitt, Robert C. Colloton, K. Angela MacFarlane
  • Publication number: 20040122318
    Abstract: A catheter device that is useable to penetrate from a blood vessel in which the catheter device is positioned to a target location comprises a flexible catheter advanceable into the first blood vessel, a tissue penetrator lumen adapted to receive an operative tissue penetrator which is usable to penetrate from the blood vessel to the target location when properly aimed. Further said catheter including an imaging transducer fixedly mounted on or within the catheter body to provide an imaging signal from which an image of the target location can be obtained. The catheter device may include an imageable marker on the catheter to form on the image obtainable from the imaging signal a penetrator path indication that indicates the path that will be followed by the tissue penetrator when the tissue penetrator exits from the catheter. Alternatively, or addition thereto, the imaging transducer may comprise a plurality of imaging elements which are located so that the penetrator path indication can be obtained.
    Type: Application
    Filed: November 14, 2003
    Publication date: June 24, 2004
    Applicant: TransVascular, Inc.
    Inventors: J. Christopher Flaherty, Jason B. Whitt, John Y. Chang, David R. Tholfsen, Philip C. Evard, Joshua Makower
  • Publication number: 20040098030
    Abstract: Methods and apparatus for occluding blood flow within a blood vessel. In a first series of embodiments, the present invention comprises a plurality of embolic devices deployable through the lumen of a conventional catheter such that when deployed, said embolic devices remain resident and occlude blood flow at a specific site within the lumen of the blood vessel. Such embolic devices comprise either mechanical embolic devices that become embedded within or compress against the lumen of the vessel or chemical vaso-occlusive agents that seal off blood flow at a given site. A second embodiment of the present invention comprises utilization of a vacuum/cauterizing device capable of sucking in the lumen of the vessel about the device to maintain the vessel in a closed condition where there is then applied a sufficient amount of energy to cause the tissue collapsed about the device to denature into a closure.
    Type: Application
    Filed: August 29, 2003
    Publication date: May 20, 2004
    Applicant: Trans Vascular, Inc.
    Inventors: Joshua Makower, J. Christopher Flaherty, Timothy R. Machold, Jason B. Whitt, Philip C. Evard, Patrick E. Macaulay, John T. Garibotto, Marc Jensen
  • Patent number: 6685648
    Abstract: A method is provided for delivering a drug to a selected tissue region within a patient's body with a catheter having a deployable puncturing element, a drug delivery element and an orientation element on a distal portion thereof. The distal portion of the catheter is percutaneously introduced into a blood vessel, and directed endovascularly to a vessel location adjacent to the selected tissue region. The puncturing element is oriented towards the selected tissue region, and deployed to access the selected tissue region. A drug is delivered with the drug delivery element to the selected tissue region.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: February 3, 2004
    Assignee: Transvascular, Inc.
    Inventors: J. Christopher Flaherty, Joshua Makower, Philip C. Evard, Patrick E. MacAulay, Jason B. Whitt, Robert C. Colloton, K. Angela Macfarlane