Patents by Inventor Christopher Crawford

Christopher Crawford 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).

  • Patent number: 11219522
    Abstract: A buoy system for treating cardiac valve regurgitation comprising a movable plug having atrial and ventricular ends, wherein a through-hole passes from the atrial to the ventricular end, wherein during systole, the plug travels toward a cardiac atrium, wherein during diastole, the plug travels into a cardiac ventricle; a tether having atrial and ventricular ends, wherein the tether passes through the through-hole of the moving plug, wherein the atrial end of the tether projects into an atrium, wherein the atrial end of the tether includes a cap to engage a delivery tool; at least one distal anchor located in the ventricle, wherein the distal anchor is coupled to the ventricular end of the tether, and wherein the system is percutaneously delivered and optionally recaptured via catheter and recapture tool at the cap of the tether, respectively.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: January 11, 2022
    Assignees: THE JOHNS HOPKINS UNIVERSITY, BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Ramji Rengarajan, Victor San Hou Yu, Kalyna Sconzert, Tom Jancaric, Reggie Roth, James Cawthra, Dennis Werner, Jason Kilvington, Umang Anand, George L. Coles, James Duncan Beaty, Keith Bulkin, Joseph A. Walters, Timothy P. Harrigan, Kenton J. Zehr, Todd Christopher Crawford
  • Patent number: 11108140
    Abstract: Devices and methods are provided for an implantable medical device (IMD) comprising a device housing having electronic components therein, a feedthrough assembly joined to the device housing, an antenna assembly, and a header body mounted to the device housing and enclosing the antenna assembly and feedthrough assembly. The antenna assembly including an inner conductor, a dielectric material, and an outer conductor arranged to form a coaxial structure.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: August 31, 2021
    Assignee: Pacesetter, Inc.
    Inventors: Perry Li, James T. Dean, Christopher A. Crawford
  • Publication number: 20210260367
    Abstract: In one embodiment, a method for fabricating a neurostimulation stimulation lead comprises: providing a plurality of ring components and hypotubes in a mold; placing an annular frame with multiple lumens over distal ends of the plurality of hypotubes to position a portion of each hypotube within a respective lumen of the annular frame; molding the plurality of ring components and the hypotubes to form a stimulation tip component for the stimulation lead, wherein the molding fills interstitial spaces between the plurality of ring components and hypotubes with insulative material; and forming segmented electrodes from the ring components after performing the molding.
    Type: Application
    Filed: May 12, 2021
    Publication date: August 26, 2021
    Inventors: Ryan Sefkow, Christopher A. Crawford, Jeffrey Mitchell, Kevin Wilson, Raymond P. Bray, John R. Gonzalez
  • Patent number: 11033733
    Abstract: In one embodiment, a method for fabricating a neurostimulation stimulation lead comprises: providing a plurality of ring components and hypotubes in a mold; placing an annular frame with multiple lumens over distal ends of the plurality of hypotubes to position a portion of each hypotube within a respective lumen of the annular frame; molding the plurality of ring components and the hypotubes to form a stimulation tip component for the stimulation lead, wherein the molding fills interstitial spaces between the plurality of ring components and hypotubes with insulative material; and forming segmented electrodes from the ring components after performing the molding.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: June 15, 2021
    Assignee: ADVANCED NEUROMODULATION SYSTEMS, INC.
    Inventors: Ryan Sefkow, Christopher A. Crawford, Jeffrey Mitchell, Kevin Wilson, Raymond P. Bray, John R. Gonzalez
  • Publication number: 20200083598
    Abstract: Devices and methods are provided for an implantable medical device (IMD) comprising a device housing having electronic components therein, a feedthrough assembly joined to the device housing, an antenna assembly, and a header body mounted to the device housing and enclosing the antenna assembly and feedthrough assembly. The antenna assembly including an inner conductor, a dielectric material, and an outer conductor arranged to form a coaxial structure.
    Type: Application
    Filed: November 18, 2019
    Publication date: March 12, 2020
    Inventors: Perry Li, James T. Dean, Christopher A. Crawford
  • Patent number: 10483628
    Abstract: Devices and methods are provided for an implantable medical device (IMD) comprising a device housing having electronic components therein, a feedthrough assembly joined to the device housing, an antenna assembly, and a header body mounted to the device housing and enclosing the antenna assembly and feedthrough assembly. The antenna assembly including an inner conductor, a dielectric material, and an outer conductor arranged to form a coaxial structure.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: November 19, 2019
    Assignee: Pacesetter, Inc.
    Inventors: Perry Li, James T. Dean, Christopher A. Crawford
  • Publication number: 20190209832
    Abstract: In one embodiment, a method for fabricating a neurostimulation stimulation lead comprises: providing a plurality of ring components and hypotubes in a mold; placing an annular frame with multiple lumens over distal ends of the plurality of hypotubes to position a portion of each hypotube within a respective lumen of the annular frame; molding the plurality of ring components and the hypotubes to form a stimulation tip component for the stimulation lead, wherein the molding fills interstitial spaces between the plurality of ring components and hypotubes with insulative material; and forming segmented electrodes from the ring components after performing the molding.
    Type: Application
    Filed: March 12, 2019
    Publication date: July 11, 2019
    Inventors: Ryan Sefkow, Christopher A. Crawford, Jeffrey Mitchell, Kevin Wilson, Raymond P. Bray, John R. Gonzalez
  • Patent number: 10226619
    Abstract: In one embodiment, a neurostimulation lead comprises: a lead body comprising a plurality of conductor wires; and a molded stimulation tip end comprising a plurality of segmented electrodes, hypotubes, and an annular frame structure: wherein (i) each segmented electrode of the plurality of segmented electrodes has an inner surface, an outer surface, and step-down region embedded within polymer material of the molded stimulation tip end, (ii) each respective hypotube is directly welded to the inner surface of a corresponding segmented electrode of the plurality of segmented electrodes.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: March 12, 2019
    Assignee: ADVANCED NEUROMODULATION SYSTEMS, INC.
    Inventors: Ryan Sefkow, Christopher A. Crawford, Jeffrey Mitchell, Kevin Wilson, Raymond P. Bray, John R. Gonzalez
  • Publication number: 20170179579
    Abstract: Devices and methods are provided for an implantable medical device (IMD) comprising a device housing having electronic components therein, a feedthrough assembly joined to the device housing, an antenna assembly, and a header body mounted to the device housing and enclosing the antenna assembly and feedthrough assembly. The antenna assembly including an inner conductor, a dielectric material, and an outer conductor arranged to form a coaxial structure.
    Type: Application
    Filed: November 7, 2016
    Publication date: June 22, 2017
    Inventors: Perry Li, James T. Dean, Christopher A. Crawford
  • Publication number: 20160263370
    Abstract: In one embodiment, a method for fabricating a neurostimulation stimulation lead comprises: providing a plurality of ring components and hypotubes in a mold; placing an annular frame with multiple lumens over distal ends of the plurality of hypotubes to position a portion of each hypotube within a respective lumen of the annular frame; molding the plurality of ring components and the hypotubes to form a stimulation tip component for the stimulation lead, wherein the molding fills interstitial spaces between the plurality of ring components and hypotubes with insulative material; and forming segmented electrodes from the ring components after performing the molding.
    Type: Application
    Filed: May 24, 2016
    Publication date: September 15, 2016
    Inventors: Ryan Sefkow, Christopher A. Crawford, Jeffrey Mitchell, Kevin Wilson, Raymond P. Bray, John R. Gonzalez
  • Patent number: 9370653
    Abstract: In one embodiment, a method for fabricating a neurostimulation stimulation lead comprises: providing a plurality of ring components and hypotubes in a mold; placing an annular frame with multiple lumens over distal ends of the plurality of hypotubes to position a portion of each hypotube within a respective lumen of the annular frame; molding the plurality of ring components and the hypotubes to form a stimulation tip component for the stimulation lead, wherein the molding fills interstitial spaces between the plurality of ring components and hypotubes with insulative material; and forming segmented electrodes from the ring components after performing the molding.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: June 21, 2016
    Assignee: ADVANCED NEUROMODULATION SYSTEMS, INC.
    Inventors: Ryan Sefkow, Christopher A. Crawford, Jeffrey Mitchell, Kevin Wilson, Raymond P. Bray, John R. Gonzalez
  • Publication number: 20150157851
    Abstract: In one embodiment, a method for fabricating a neurostimulation stimulation lead comprises: providing a plurality of ring components and hypotubes in a mold; placing an annular frame with multiple lumens over distal ends of the plurality of hypotubes to position a portion of each hypotube within a respective lumen of the annular frame; molding the plurality of ring components and the hypotubes to form a stimulation tip component for the stimulation lead, wherein the molding fills interstitial spaces between the plurality of ring components and hypotubes with insulative material; and forming segmented electrodes from the ring components after performing the molding.
    Type: Application
    Filed: November 14, 2014
    Publication date: June 11, 2015
    Inventors: Ryan Sefkow, Christopher A. Crawford, Jeffrey Mitchell, Kevin Wilson, Raymond P. Bray, John R. Gonzalez
  • Publication number: 20140005902
    Abstract: An engine forming part of a machine is controlled in order to effect a predetermined machine speed limit. One or more engine control parameters are determined based on a theoretical engine speed limit that is based on the predetermined machine speed limit and variable machine parameters. This comprises on or more of: varying a control software engine speed limit from a first engine speed value to a desired engine speed limit value that is based on the theoretical limit; setting the control software engine speed limit at a locked engine speed limit value that remains constant when the theoretical limit is within a set range; setting an engine governor gain based on the theoretical limit; setting control software engine speed filter parameters based on the theoretical limit; and determining control commands to prevent the machine transmission from changing gears based on the engine speed limit with a hysteresis applied.
    Type: Application
    Filed: March 20, 2012
    Publication date: January 2, 2014
    Applicant: PERKINS ENGINE COMPANY LIMITED
    Inventors: Venkatramanan Venkatachalam Ananthasivan, Alexander Babbe, Christopher Crawford, Michael D. Smith
  • Patent number: 8601773
    Abstract: An in-line insert folder system includes a continuous roll of preprinted inserts, and a cutter for cutting individual inserts from the roll. A transport serially conveys the individual inserts in a downstream direction to a buckle folder that receives the inserts and folds each one along at least one fold line. An applicator serially receives the folded inserts from the buckle folder and applies the inserts to consumer packs such as cigarette packs, for example. The folded inserts may be directly applied to the packs before placement of flexible outer wrap or the folded inserts may be applied onto the flexible outer wrap before that wrap is placed around the packs.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: December 10, 2013
    Assignee: Philip Morris USA Inc.
    Inventors: Edmond J. Cadieux, Jr., Barry S. Smith, Robert G. Scott, Martin T. Garthaffner, Steve R. Rinehart, Xuan Pham, Linwood H. Carneal, Jr., Hubert Coleman Goodman, Jr., Joshua L. Roby, Christopher Crawford, James D. Evans
  • Patent number: 8091114
    Abstract: An integrated security event management system (ISEMS) is disclosed and is based on service-oriented architecture (SOA) and includes one or more computers connected to one or more service-providing devices. At least one of the computers comprises one or more modules that are adapted to perform the following tasks: tasks to dynamically discover the service-providing devices and their services within a transit security domain in about real-time; tasks to acquire asynchronous state information notifications in about real-time from the discovered services; tasks to determine one or more Boolean outcomes from the asynchronous state information in about real-time via a configurable rules engine; and tasks to evaluate the one or more Boolean outcomes in about real-time via a configurable policy engine to determine state changes of one or more security policies.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: January 3, 2012
    Assignee: Bombardier Transportation GmbH
    Inventors: Richard Nicholas Lommock, Michael Cross, Robert Blair Ciora, Christopher Crawford, Mark David Kirschner, Joseph Paul Schreibeis, William Keith Engel
  • Publication number: 20110184901
    Abstract: An integrated security event management system (ISEMS) is disclosed and is based on service-oriented architecture (SOA) and includes one or more computers connected to one or more service-providing devices. At least one of the computers comprises one or more modules that are adapted to perform the following tasks: tasks to dynamically discover the service-providing devices and their services within a transit security domain in about real-time; tasks to acquire asynchronous state information notifications in about real-time from the discovered services; tasks to determine one or more Boolean outcomes from the asynchronous state information in about real-time via a configurable rules engine; and tasks to evaluate the one or more Boolean outcomes in about real-time via a configurable policy engine to determine state changes of one or more security policies.
    Type: Application
    Filed: August 30, 2007
    Publication date: July 28, 2011
    Applicant: BOMBARDIER TRANSPORTATION GMBH
    Inventors: Richard Nicholas Lommock, Michael Cross, Robert Blair Ciora, Christopher Crawford, Mark David Kirschner, Joseph Paul Schreibeis, William Keith Engel
  • Patent number: 7453235
    Abstract: A modular uninterruptible power supply is disclosed, which provides complete redundancy for all components required for UPS operation. Novel aspects of the invention include design of the modules and their interconnection and interoperability, as well as improved operation techniques applicable to UPS systems generally.
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: November 18, 2008
    Assignee: Liebert Corporation
    Inventors: Charles F Blair, Mark Gabel, Christopher Crawford, Dennis Weber, John R Birchmeier, Brad Reinbolt
  • Publication number: 20080056806
    Abstract: A writing implement comprising an electric eraser assembly consisting of a motor and an attached eraser, said motor capable of rotating said attached eraser, an integrated power source capable of providing power to said electric eraser assembly and a writing portion further comprising a tip capable of creating erasable marks when applied to a surface.
    Type: Application
    Filed: March 12, 2007
    Publication date: March 6, 2008
    Inventor: Christopher Crawford
  • Publication number: 20080020273
    Abstract: Described is a battery which includes a body; a first pair of protrusions extending from a first surface of the body; a second pair of protrusions extending from a second surface of the body opposite to the first surface of the body; a latch disposed on the second surface between the second pair of protrusions; and at least one electrical contact disposed on a third surface of the body.
    Type: Application
    Filed: October 2, 2007
    Publication date: January 24, 2008
    Inventors: Quintin Morris, Katrika Woodcock, Jorg Schlieffers, Christopher Crawford
  • Patent number: D624188
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: September 21, 2010
    Assignee: Advanced Neuromodulation Systems, Inc.
    Inventors: Christopher Crawford, Maureen Murphy