Patents by Inventor Keith Perkins

Keith Perkins 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: 20200145574
    Abstract: A wearable digital video camera (10) is equipped with wireless connection protocol and global navigation and location positioning system technology to provide remote image acquisition control and viewing. The Bluetooth® packet-based open wireless technology standard protocol (400) is preferred for use in providing control signals or streaming data to the digital video camera and for accessing image content stored on or streaming from the digital video camera. The GPS technology (402) is preferred for use in tracking of the location of the digital video camera as it records image information. A rotating mount (300) with a locking member (330) on the camera housing (22) allows adjustment of the pointing angle of the wearable digital video camera when it is attached to a mounting surface.
    Type: Application
    Filed: June 14, 2019
    Publication date: May 7, 2020
    Inventors: Laura O'Donnell, Richard Mander, Michael Denton, Ben Bodley, Alan Tompkins, Keith Gurganus, Kelvin P. Barnsdale, Simon Third, Carm Pierce, Carl Perkins
  • Patent number: 10595981
    Abstract: The present technology relates generally to endovascular prostheses. More particularly, the disclosure relates to endovascular prostheses having a graft material and a stent structure attached with a suture, or a seam formed by a suture, where the suture has a coating that expands upon exposure to body fluids. The expansion allows for the coating to fill suture holes in the graft material so as to reduce or eliminate endoleaks.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: March 24, 2020
    Assignee: Medtronic Vascular, Inc.
    Inventors: Jeffrey Mitchell, Keith Perkins, Samuel Robaina, Rajesh Radhakrishnan
  • Publication number: 20190389727
    Abstract: A method of forming a carbon microtube includes providing a wire substrate in a heated furnace, contacting a surface of the wire substrate in the heated furnace with a reducing gas, forming a carbon microtube on the wire substrate by chemical vapor deposition of a carbon precursor in the heated furnace, and removing the carbon microtube, on the wire substrate, from the furnace.
    Type: Application
    Filed: June 21, 2019
    Publication date: December 26, 2019
    Inventors: F. Keith Perkins, Ignacio Perez De Leon, Paul M. Campbell, Adam L. Friedman, Erin Cleveland
  • Publication number: 20190380825
    Abstract: The techniques of this disclosure generally relate to modular stent device and method of deploying the same. The method includes introducing a delivery system including the modular stent device via supra aortic access. The delivery system is advanced into the ascending aorta. Once positioned, the modular stent device is deployed from the delivery system such that an artery leg of the modular stent device engages the brachiocephalic artery and a bypass gate engages the aorta, wherein the artery leg partially collapses the bypass gate. The artery leg has a greater radial force than the bypass gate such that the artery leg remains un-collapsed and opened. Accordingly, blood flow through the artery leg and perfusion of the brachiocephalic artery and preservation of blood flow to cerebral territories including the brain is insured.
    Type: Application
    Filed: March 28, 2019
    Publication date: December 19, 2019
    Inventors: Keith Perkins, Zachary Borglin, Mathew A. Haggard
  • Patent number: 10466190
    Abstract: An apparatus and method for producing chemielectric point-sensor systems with increased sensitivity and increased selectivity. The chemielectric sensor system includes a sensor/heater assembly, where the sensor is a chemielectric sensor whose resistance or capacitance changes upon exposure to chemical analytes. The heater functionality applies a programmed sequence of one or more thermal pulses to the sensor to quickly raise its temperature. After each thermal pulse ends the change in resistivity of the sensor is measured. Such data as a function of the pulse time and temperature are recorded and analyzed to determine the chemical composition (selectivity) and concentrations in the ambient vapor by comparison to a library dataset. The sensor operation with fast thermal pulses also allows operation at higher frequencies where the noise is lower and hence sensitivity is improved.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: November 5, 2019
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Mario Ancona, F. Keith Perkins, Arthur W. Snow
  • Patent number: 10436744
    Abstract: A method of making a low dimensional material chemical vapor sensor comprising providing a monolayer of a transition metal dichalcogenide, applying the monolayer to a substrate, applying a PMMA film, defining trenches, and placing the device in a n-butyl lithium (nbl) bath. A low dimensional material chemical vapor sensor comprising a monolayer of a transition metal dichalcogenide, the monolayer applied to a substrate, a region or regions of the transition metal dichalcogenide that have been treated with n-butyl lithium, the region or regions of the transition metal dichalcogenide that have been treated with n-butyl lithium have transitioned from a semiconducting to metallic phase, metal contacts on the region or regions of the transition metal dichalcogenide that have been treated with the n-butyl lithium.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: October 8, 2019
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Adam L. Friedman, F. Keith Perkins, James C. Culbertson, Aubrey T. Hanbicki, Paul M. Campbell
  • Patent number: 10356304
    Abstract: A wearable digital video camera (10) is equipped with wireless connection protocol and global navigation and location positioning system technology to provide remote image acquisition control and viewing. The Bluetooth® packet-based open wireless technology standard protocol (400) is preferred for use in providing control signals or streaming data to the digital video camera and for accessing image content stored on or streaming from the digital video camera. The GPS technology (402) is preferred for use in tracking of the location of the digital video camera as it records image information. A rotating mount (300) with a locking member (330) on the camera housing (22) allows adjustment of the pointing angle of the wearable digital video camera when it is attached to a mounting surface.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: July 16, 2019
    Assignee: Contour IP Holding, LLC
    Inventors: Laura O'Donnell, Richard Mander, Michael Denton, Ben Bodley, Alan Tompkins, Keith Gurganus, Kelvin P. Barnsdale, Simon Third, Carm Pierce, Carl Perkins
  • Publication number: 20190159882
    Abstract: The techniques of this disclosure generally relate to a prosthesis including framed biodegradable yarn graft material having a frame and biodegradable yarns combined with the frame. The biodegradable yarns seal tissue integration openings within the frame. The frame provides long term mechanical strength while the biodegradable yarns provide acute strength and impermeability to prevent endoleaks. As the biodegradable yarns degrade, the drop in textile density creates tissue integration openings, through which tissue grows. The integrate of tissue into the framed biodegradable yarn graft material provides biological fixation of the prosthesis in vessels and prevents endoleaks and migration of the prosthesis.
    Type: Application
    Filed: September 26, 2018
    Publication date: May 30, 2019
    Inventors: Keith Perkins, Zachary Borglin, Julie Benton, Matt Petruska, Darren Galligan, Samuel Robaina, Rajesh Radhakrishnan
  • Publication number: 20190159881
    Abstract: A laser is used to form openings within a graft material to selectively enhance permeability of a prosthesis for tissue integration therein. A feature of utilizing a laser to create the openings for tissue integration builds from its tunability. More particularly, the laser precisely places openings in any pattern and location, and on any textile that forms the graft material. Further, the power and focus of the laser is precisely adjusted to control the diameter and shape of the openings. All parameters of the openings can be controlled at will, allowing for the opportunity to selectively enhance and optimize the permeability of the graft material in a vessel.
    Type: Application
    Filed: April 11, 2018
    Publication date: May 30, 2019
    Inventors: Zachary BORGLIN, Matt PETRUSKA, Keith PERKINS, Julie BENTON
  • Publication number: 20190159884
    Abstract: The techniques of this disclosure generally relate to prosthesis formed from a biodegradable composite yarn. The biodegradable composite yarn includes a permanent core and a biodegradable shell. The biodegradable shell slowly dissolves over a period of time when placed in a vessel. As the biodegradable shell dissolves, openings are created in the prosthesis that are filled with tissue from the vessel wall of the vessel. The integration of the tissue into the prosthesis provides biological fixation of prosthesis in the vessel and prevents endoleaks and migration of prosthesis.
    Type: Application
    Filed: September 27, 2018
    Publication date: May 30, 2019
    Inventors: Keith Perkins, Zachary Borglin, Julie Benton, Matt Petruska, Darren Galligan, Samuel Robaina, Rajesh Radhakrishnan
  • Publication number: 20190160208
    Abstract: The techniques of this disclosure generally relate to applying an armor coating to a graft material. The armor coating is armor, impermeable to fluid, and elastic. The armor coating seals openings within the graft material eliminating passage of fluid through the graft material.
    Type: Application
    Filed: September 26, 2018
    Publication date: May 30, 2019
    Inventors: Keith Perkins, Zachary Borglin, Julie Benton, Matt Petruska, Darren Galligan, Samuel Robaina, Rajesh Radhakrishnan
  • Publication number: 20190159885
    Abstract: The techniques of this disclosure generally relate to a variable permeability layered prosthesis including an impermeable outer layer and a permeable inner layer. The impermeable outer layer is well suited to seal a dissection opening of a dissection. The permeable inner layer allows fluid to enter into a dead space between the impermeable outer layer and the permeable inner layer. The fluid in the dead space coagulates in the dead space providing a media for tissue growth into the prosthesis. The ability of tissue to integrate into the prosthesis provides biological fixation of the prosthesis in vessels and prevents endoleaks and migration of the prosthesis.
    Type: Application
    Filed: October 10, 2018
    Publication date: May 30, 2019
    Inventors: Zachary Borglin, Keith Perkins, Julie Benton
  • Publication number: 20190159883
    Abstract: A needle lattice is used to form openings within a graft material to selectively enhance permeability of a prosthesis for tissue integration therein. The needle lattice may be disposed on, for example, a surface of a roller or press. The needle lattice precisely places openings in any pattern and location, and on any textile that forms the graft material. The needle lattice can be heated to fuse the surrounding material of the openings of the textile to prevent movement of the textiles and to prevent collapse of the openings. All parameters of the openings, including varying density, patterns, and size of each opening, can be controlled, allowing for the opportunity to selectively enhance and optimize the permeability of the graft material in a vessel. The needle lattice can quickly form multiple openings within a graft material, allowing for quick manufacturing of the prosthesis.
    Type: Application
    Filed: September 27, 2018
    Publication date: May 30, 2019
    Inventors: Zachary Borglin, Keith Perkins, Darren Galligan, Julie Benton
  • Publication number: 20190110884
    Abstract: A scaffolded stent-graft includes a graft material comprising an inner surface and an outer surface. The inner surface defines a lumen within the graft material. The scaffolded stent-graft further includes a scaffold comprising a mesh coupled to the graft material at the outer surface. The scaffold is configured to promote tissue ingrowth therein. In this manner, the scaffold enhances tissue integration into the scaffolded stent-graft. The tissue integration enhances biological fixation of the scaffolded stent-graft in vessels minimizing the possibility of endoleaks and migration.
    Type: Application
    Filed: December 13, 2018
    Publication date: April 18, 2019
    Inventors: Keith Perkins, Jeffery Argentine, Matt Petruska, Samuel Robaina, Darren Galligan, Rajesh Radhakrishnan
  • Publication number: 20190107524
    Abstract: A sensitive and selective, in-line method to measure and validate the sulfur content at ppb levels in both the liquid and gas phase of fuel. The method includes etching graphene, for example to form a mesa structure comprising horizontal or vertical lines or an array of multidentate star features; functionalizing the etched graphene and attaching metal oxide nanoparticles to the functionalized graphene to form a device; exposing the device to a fuel in the gas or liquid phase; detecting a change in conductivity when sulfur is present in the fuel; and recovering the device for future use. Also disclosed is the related in-line graphene-based ppb level sulfur detector for fuels.
    Type: Application
    Filed: June 20, 2018
    Publication date: April 11, 2019
    Inventors: Evgeniya H. Lock, F. Keith Perkins, Anthony K. Boyd, Rachael L. Myers-Ward, David Kurt Gaskill, Anindya Nath
  • Publication number: 20190083265
    Abstract: A venous valve prosthesis includes a frame and a prosthetic valve coupled to the frame. With the venous valve prosthesis implanted in a vein, the prosthetic valve includes a closed configuration wherein an outer surface of the prosthetic valve is in contact with a wall of the vein around a circumference of the prosthetic valve to prevent blood from flowing past the prosthetic valve between the wall of the vein and the outer surface of the prosthetic valve. The prosthetic valve is configured to move to an open configuration such that at least a portion of an outer wall of the prosthetic valve partially collapses away from the wall of the vein in response to antegrade blood flow through the vein to enable blood flow between the outer surface of the prosthetic valve and the wall of the vein.
    Type: Application
    Filed: November 19, 2018
    Publication date: March 21, 2019
    Inventors: Jeffery Argentine, Todd Malsbary, Keith Perkins, Travis Rowe
  • Patent number: 10188500
    Abstract: A scaffolded stent-graft includes a graft material comprising an inner surface and an outer surface. The inner surface defines a lumen within the graft material. The scaffolded stent-graft further includes a scaffold comprising a mesh coupled to the graft material at the outer surface. The scaffold is configured to promote tissue ingrowth therein. In this manner, the scaffold enhances tissue integration into the scaffolded stent-graft. The tissue integration enhances biological fixation of the scaffolded stent-graft in vessels minimizing the possibility of endoleaks and migration.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: January 29, 2019
    Assignee: Medtronic Vascular, Inc.
    Inventors: Keith Perkins, Jeffery Argentine, Matt Petruska, Samuel Robaina, Darren Galligan, Rajesh Radhakrishnan
  • Patent number: 10143554
    Abstract: A venous valve prosthesis includes a frame and a prosthetic valve coupled to the frame. With the venous valve prosthesis implanted in a vein, the prosthetic valve includes a closed configuration wherein an outer surface of the prosthetic valve is in contact with a wall of the vein around a circumference of the prosthetic valve to prevent blood from flowing past the prosthetic valve between the wall of the vein and the outer surface of the prosthetic valve. The prosthetic valve is configured to move to an open configuration such that at least a portion of an outer wall of the prosthetic valve partially collapses away from the wall of the vein in response to antegrade blood flow through the vein to enable blood flow between the outer surface of the prosthetic valve and the wall of the vein.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: December 4, 2018
    Assignee: Medtronic Vascular, Inc.
    Inventors: Jeffery Argentine, Todd Malsbary, Keith Perkins, Travis Rowe
  • Patent number: 10010403
    Abstract: A stent-graft prosthesis includes a generally tubular outer PTFE layer, a generally tubular helical stent, a generally tubular inner PTFE layer, and a suture or fabric support strip. The outer PTFE layer defines an outer layer lumen. The helical stent is disposed within the outer layer lumen and defines a stent lumen. The inner PTFE layer is disposed within the stent lumen and defines an inner layer lumen. The suture includes a suture first end coupled to a stent first end and a suture second end coupled to a stent second end, with the suture disposed between the outer PTFE layer and the inner PTFE layer. Alternatively, the fabric support strip is disposed between the outer and inner PTFE layers. The suture or fabric support strip may include a plurality of sutures or fabric support strips and may be spaced equally around a circumference of the inner PTFE layer.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: July 3, 2018
    Assignee: Medtronic Vascular, Inc.
    Inventors: Joseph Marrocco, Mathew Haggard, Keith Perkins
  • Publication number: 20180153677
    Abstract: A prosthetic assembly configured for endovascular placement within an aortic arch and method of use thereof. The prosthetic assembly includes a proximal aortic stent-graft prosthesis configured to be positioned within a proximal portion of the aortic arch adjacent to the brachiocephalic artery, a distal aortic stent-graft prosthesis configured to be positioned within a distal portion of the aortic arch adjacent to the left subclavian artery, a first branch stent-graft prosthesis configured to be positioned within the brachiocephalic artery and a second branch stent-graft prosthesis configured to be positioned in one of the left common carotid and the left subclavian artery. When deployed, a proximal end of the first branch stent-graft prosthesis is disposed within a lumen of the proximal aortic stent-graft prosthesis to proximally displace the ostium of the brachiocephalic artery.
    Type: Application
    Filed: December 4, 2017
    Publication date: June 7, 2018
    Inventors: Keith Perkins, Dennis Brooks, Mark Stiger