Patents by Inventor Dean A. Schaefer

Dean A. Schaefer 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: 20190240391
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include an apparatus for the creation, modification and maintenance of a fistula, including the modification of an existing dialysis fistula; and a method of supplying oxygenated blood to the venous circulation of a patient. A kit of anastomotic implants is described which supports a broad base of patient anatomies and fistula locations. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Application
    Filed: August 2, 2017
    Publication date: August 8, 2019
    Applicant: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Publication number: 20180206845
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Application
    Filed: March 23, 2018
    Publication date: July 26, 2018
    Inventors: Rodney BRENNEMAN, Dean A. SCHAEFER, J. Christopher FLAHERTY
  • Patent number: 9955970
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: May 1, 2018
    Assignee: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Patent number: 9782533
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include an apparatus for the creation, modification and maintenance of a fistula, including the modification of an existing dialysis fistula; and a method of supplying oxygenated blood to the venous circulation of a patient. A kit of anastomotic implants is described which supports a broad base of patient anatomies and fistula locations. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: October 10, 2017
    Assignee: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Publication number: 20170245862
    Abstract: Methods of implanting a device in the lumen of a blood vessel are described. The method includes providing a microcatheter and a device. The device includes a first hub, a second hub, a support structure including a plurality of struts disposed between the first hub and the second hub, and a layer of material disposed over the plurality of struts. The support structure has a low profile, radially constrained state with an elongated tubular configuration suitable for delivery from a microcatheter. The support structure also has an expanded state, a smooth outer surface, and has an axially shortened configuration relative to the radially constrained state. The microcatheter is advanced to a region of interest within the blood vessel. The support structure is advanced through the lumen of and out the distal end of the microcatheter where it expands to the expanded state.
    Type: Application
    Filed: May 15, 2017
    Publication date: August 31, 2017
    Applicant: SEQUENT MEDICAL, INC.
    Inventors: Brian J. Cox, Dean Schaefer, Robert F. Rosenbluth
  • Patent number: 9494181
    Abstract: A fastening assembly includes a fastener having a head with an underside and an elongated shaft extending therefrom. The fastener constructed of at least one of a refractory metal and a superalloy. A washer includes a body with an upper surface and an opposing lower surface which defines opening portion for receiving the elongated shaft of the fastener therethrough. The upper surface of the washer forms diffusion bonds with the underside of the head of the fastener when the washer and the fastener are held in contact at temperatures in excess of 500° C.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: November 15, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Thomas Dean Schaefer, Gregory Alan Steinlage, Donald Robert Allen, Evan Michael Lampe
  • Publication number: 20160228122
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Application
    Filed: September 29, 2015
    Publication date: August 11, 2016
    Inventors: Rodney BRENNEMAN, Dean A. SCHAEFER, J. Christopher FLAHERTY
  • Patent number: 9259337
    Abstract: An expandable support structure and methods of use for treatment of a patient's cerebral aneurysm are described. The support structure includes a plurality of elongate support members each having first and second ends that are gathered at the first end of the support structure. Each elongate support member starts at the first end of the support structure, extends to an apex at the second end of the support structure, and extends back to the first end of the support structure. The support structure has a low profile, radially constrained state with an elongated tubular configuration having a low profile suitable for delivery from a microcatheter. The support structure also has an expanded relaxed state that defines a substantially globular shape.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: February 16, 2016
    Assignee: Sequent Medical, Inc.
    Inventors: Brian J Cox, Dean Schaefer, Robert F Rosenbluth
  • Publication number: 20160015396
    Abstract: Devices for treatment of a patient's vasculature are described. The device includes a first hub, a second hub, a support structure including a plurality of struts disposed between the first hub and the second hub, and a layer of material disposed over the plurality of struts. The support structure has a low profile, radially constrained state with an elongated tubular configuration suitable for delivery from a microcatheter. The support structure also has an expanded state, a smooth outer surface, and has an axially shortened configuration relative to the radially constrained state. The layer of material may be made from acrylic, silk, silicone, polyvinyl alcohol, polypropylene, polyester, PolyEtherEther Ketone (PEEK), polytetrafluoroethylene (PTFE), polycarbonate urethane (PCU), or polyurethane (PU). The support structure may be formed from a slotted tubular member.
    Type: Application
    Filed: September 29, 2015
    Publication date: January 21, 2016
    Applicant: SEQUENT MEDICAL, INC.
    Inventors: Brian J. Cox, Dean Schaefer, Robert F. Rosenbluth
  • Patent number: 9179916
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: November 10, 2015
    Assignee: ROX MEDICAL INC.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Publication number: 20150190221
    Abstract: A system and method are provided for treating an aneurysm or other vessel disease or defect. The present disclosure includes an expandable device for placement in a vessel, where the mechanically expandable device includes a membrane. Also disclosed is a delivery device constructed and arranged to position the expandable device such that the exterior surface of the expandable device engages with the inner surface of the vessel and maintains a fluid pathway through said vessel.
    Type: Application
    Filed: April 5, 2013
    Publication date: July 9, 2015
    Applicant: MERLIN MD PTE LTD.
    Inventors: Dean Schaefer, Felizardo Gratila Batiao, Siew Yin Lee, Christopher Flaherty, Dhirendra Singh
  • Publication number: 20150167724
    Abstract: A fastening assembly includes a fastener having a head with an underside and an elongated shaft extending therefrom. The fastener constructed of at least one of a refractory metal and a superalloy. A washer includes a body with an upper surface and an opposing lower surface which defines opening portion for receiving the elongated shaft of the fastener therethrough. The upper surface of the washer forms diffusion bonds with the underside of the head of the fastener when the washer and the fastener are held in contact at temperatures in excess of 500° C.
    Type: Application
    Filed: December 13, 2013
    Publication date: June 18, 2015
    Applicant: General Electric Company
    Inventors: Thomas Dean Schaefer, Gregory Alan Steinlage, Donald Robert Allen, Evan Michael Lampe
  • Publication number: 20140188028
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include an apparatus for the creation, modification and maintenance of a fistula, including the modification of an existing dialysis fistula; and a method of supplying oxygenated blood to the venous circulation of a patient. A kit of anastomotic implants is described which supports a broad base of patient anatomies and fistula locations. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Application
    Filed: January 23, 2013
    Publication date: July 3, 2014
    Applicant: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Patent number: 8734472
    Abstract: A shunt rivet for implantation in the aorta and inferior vena cava to treat chronic obstructive pulmonary disease, and a method of treating chronic obstructive pulmonary disease.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: May 27, 2014
    Assignee: ROX Medical, Inc.
    Inventors: Rodney A. Brenneman, J. Christopher Flaherty, Dean Schaefer, Peter Davis, Brad Kellerman
  • Publication number: 20140121685
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Application
    Filed: January 3, 2014
    Publication date: May 1, 2014
    Applicant: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Publication number: 20140052233
    Abstract: Methods for treating a cerebral aneurysm are described. The method includes providing an expandable wire body support structure having a low profile radially constrained state, an expanded relaxed state with a substantially spherical or globular configuration having a smooth outer surface, and a porous permeable layer comprising a braided wire occlusive mesh disposed over at least a portion of the expandable wire body support structure at a first end, which is configured to cover an aneurysm opening. The support structure is advanced in the low profile radially constrained state within a microcatheter to a region of interest within a cerebral artery. The support structure is then deployed within the cerebral aneurysm, and the support structure expands to the expanded relaxed state within the cerebral aneurysm.
    Type: Application
    Filed: October 2, 2013
    Publication date: February 20, 2014
    Applicant: SEQUENT MEDICAL INC.
    Inventors: BRIAN J. COX, DEAN SCHAEFER, ROBERT F. ROSENBLUTH
  • Patent number: 8641724
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: February 4, 2014
    Assignee: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Publication number: 20130274863
    Abstract: An expandable support structure and methods of use for treatment of a patient's cerebral aneurysm are described. The support structure includes a plurality of elongate support members each having first and second ends that are gathered at the first end of the support structure. Each elongate support member starts at the first end of the support structure, extends to an apex at the second end of the support structure, and extends back to the first end of the support structure. The support structure has a low profile, radially constrained state with an elongated tubular configuration having a low profile suitable for delivery from a microcatheter. The support structure also has an expanded relaxed state that defines a substantially globular shape.
    Type: Application
    Filed: June 11, 2013
    Publication date: October 17, 2013
    Inventors: BRIAN J. COX, DEAN SCHAEFER, ROBERT F. ROSENBLUTH
  • Publication number: 20130274862
    Abstract: An expandable support structure and methods of use for treatment of a patient's cerebral aneurysm are described. The support structure includes a plurality of elongate support members each having first and second ends that are both gathered at the first end of the support structure. Each elongate support member starts at the first end of the support structure, extends to an apex at the second end of the support structure, and extends back to the first end of the support structure. The support structure has a low profile, radially constrained state having a low profile suitable for delivery from a microcatheter. The support structure also has an expanded relaxed state that defines a substantially globular shape. In the expanded relaxed state, the apices of the elongate support members are arranged to define an open distal end.
    Type: Application
    Filed: June 11, 2013
    Publication date: October 17, 2013
    Inventors: BRIAN J. COX, DEAN SCHAEFER, ROBERT F. ROSENBLUTH
  • Publication number: 20130274868
    Abstract: Devices and methods for treatment of a patient's vasculature with some embodiments configured for delivery with a microcatheter for treatment of the cerebral vasculature of a patient. Some embodiments include thin permeable membranes configured to occlude blood flow therethrough.
    Type: Application
    Filed: March 11, 2013
    Publication date: October 17, 2013
    Inventors: BRIAN J. COX, Dean Schaefer, Robert F. Rosenbluth