Patents by Inventor David MacAdam

David MacAdam 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: 10936987
    Abstract: A system and method for analyzing the effectiveness of road maintenance efforts within a district is provided. Data obtained from roadway weather information stations and a traffic data monitoring system is gathered to determine when weather events begin and end based upon weather conditions and traffic information. The effectiveness of roadway maintenance efforts after the end of such weather event is determined.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: March 2, 2021
    Assignee: STATE OF OHIO, DEPARTMENT OF TRANSPORTATION
    Inventors: John A. MacAdam, David L. Holstein, Thomas M. Lyden, Sonja R. Simpson, Scott E. Lucas
  • Publication number: 20190392366
    Abstract: A system and method for analyzing the effectiveness of road maintenance efforts within a district is provided. Data obtained from roadway weather information stations and a traffic data monitoring system is gathered to determine when weather events begin and end based upon weather conditions and traffic information. The effectiveness of roadway maintenance efforts after the end of such weather event is determined.
    Type: Application
    Filed: September 9, 2019
    Publication date: December 26, 2019
    Inventors: John A. MacAdam, David L. Holstein, Thomas M. Lyden, Sonja R. Simpson, Scott E. Lucas
  • Patent number: 10410160
    Abstract: The present invention is a system and method for detecting traffic impacting snow or freezing rain weather events using data obtained from roadway weather information systems and traffic data monitoring systems, determining when such events end based upon weather and traffic pattern information, and calculating the effectiveness of roadway maintenance efforts after the detected end of such a traffic impacting snow or freezing rain weather event.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 10, 2019
    Assignee: State of Ohio, Department of Transportation
    Inventors: John A. MacAdam, David L. Holstein, Thomas M. Lyden, Sonja R. Simpson, Scott E. Lucas
  • Patent number: 9750567
    Abstract: The present invention encompasses apparatus and methods for mapping electrical activity within the heart. The present invention also encompasses methods and apparatus for creating lesions in the heart tissue (ablating) to create a region of necrotic tissue which serves to disable the propagation of errant electrical impulses caused by an arrhythmia.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: September 5, 2017
    Assignee: Boston Scientific Scimed Inc.
    Inventors: Gary S. Falwell, Steven J. Burns, Charles A. Gibson, David MacAdam, Nickolas G. Davis
  • Patent number: 9227240
    Abstract: A crimping head for use with an impact wrench to crimp fittings onto a structure carrying the fitting, that includes a universal adaptor having a head, and a socket positioned in the head sized and shaped to receive a standard anvil of an impact wrench without further connection between the impact wrench and the crimping head. A locking assembly is provided for cooperating with the universal adaptor head for locking the anvil into the socket, and a transmission is attached to the universal adaptor for being driven by the universal adaptor and for converting rotational movement of the anvil into selective rearward and forward movement. A jaw assembly is attached to the transmission and adapted to close into a crimping position and open into a release position responsive to the rearward and forward movement of the transmission.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: January 5, 2016
    Assignee: CONBRACO INDUSTRIES, INC.
    Inventor: Glenn David MacAdams
  • Publication number: 20150157401
    Abstract: A catheter including control, localization, and/or fluid delivery features, and methods of using the same. One embodiment is directed to an electrophysiology catheter including a superelastic wire and a cable, and a method of controlling the catheter using the cable. Another embodiment is directed to an electrophysiology catheter including an adhesive to bias the orientation of the catheter. A further embodiment is directed to an electrophysiology catheter including adhesive and one or more cables, and a method of controlling the catheter using the one or more cables. Another embodiment is directed to a method including acts of injecting a fluid into the heart of a patient and adjusting the diameter of an arcuate curve of the catheter. Further embodiments are directed to a catheter having multiple position sensors on an arcuate curve of the catheter, or a position sensor associated with a movable electrode of the catheter.
    Type: Application
    Filed: February 19, 2015
    Publication date: June 11, 2015
    Inventors: Gary S. Falwell, David MacAdam, Darany Kuong
  • Patent number: 8961509
    Abstract: A catheter including control, localization, and/or fluid delivery features, and methods of using the same. One embodiment is directed to an electrophysiology catheter including a superelastic wire and a cable, and a method of controlling the catheter using the cable. Another embodiment is directed to an electrophysiology catheter including an adhesive to bias the orientation of the catheter. A further embodiment is directed to an electrophysiology catheter including adhesive and one or more cables, and a method of controlling the catheter using the one or more cables. Another embodiment is directed to a method including acts of injecting a fluid into the heart of a patient and adjusting the diameter of an arcuate curve of the catheter. Further embodiments are directed to a catheter having multiple position sensors on an arcuate curve of the catheter, or a position sensor associated with a movable electrode of the catheter.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: February 24, 2015
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Gary S. Falwell, David MacAdam, Darany Kuong
  • Patent number: 8951247
    Abstract: Method and apparatus for treating conductive irregularities in the heart, particularly atrial fibrillation and accessory path arrythmias. An ablative catheter is positioned relative to an inter-atrial electrical pathway, or a vicinity of accessory paths such as the coronary sinus or fossa ovalis, and actuated to form a lesion that partially or completely blocks electrical conduction in at least one direction along the pathway. Method and apparatus for assessing lesion quality are also described.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: February 10, 2015
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Sheng He Ding, David MacAdam
  • Patent number: 8945116
    Abstract: An apparatus for mapping and/or ablating tissue includes a braided conductive member that may be inverted to provide a ring-shaped surface. When a distal tip of the braided conductive member is retracted within the braided conductive member, the lack of a protrusion allows the ring-shaped surface to contact a tissue wall such as a cardiac wall. In an alternative configuration, the braided conductive member may be configured with the distal portion forming a proboscis that can be used to stably position the braided conductive member relative to a blood vessel, such as a ventricular outflow tract. The braided conductive member has a plurality of electronically active sites that may be accessed individually for stable mapping over a broad area for stable mapping or ablation to form broad and deep lesions.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: February 3, 2015
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: David MacAdam, Ding Sheng He
  • Publication number: 20140360243
    Abstract: A crimping head for use with an impact wrench to crimp fittings onto a structure carrying the fitting, that includes a universal adaptor having a head, and a socket positioned in the head sized and shaped to receive a standard anvil of an impact wrench without further connection between the impact wrench and the crimping head. A locking assembly is provided for cooperating with the universal adaptor head for locking the anvil into the socket, and a transmission is attached to the universal adaptor for being driven by the universal adaptor and for converting rotational movement of the anvil into selective rearward and forward movement. A jaw assembly is attached to the transmission and adapted to close into a crimping position and open into a release position responsive to the rearward and forward movement of the transmission.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 11, 2014
    Inventor: Glenn David MacAdams
  • Patent number: 8845558
    Abstract: Embodiments of the invention relate to a catheter having an ultrasound energy emitting region that is both rotatable about and slidable along the shaft of the catheter. One embodiment is directed to a catheter comprising an ultrasound transducer coupled to the shaft, and at least one actuator coupled to the handle and the ultrasound transducer that is adapted to move the ultrasound transducer both longitudinally along the shaft and circumferentially about the shaft. Another embodiment of the invention is directed to a catheter comprising an ultrasound transducer coupled to the shaft, and at least one actuator that is adapted to move the sheath both longitudinally along the shaft and circumferentially about the shaft to orient a window of the sheath in a desired position.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: September 30, 2014
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: David MacAdam, Timothy Collins
  • Publication number: 20140163360
    Abstract: A catheter includes a fluid network for cooling the ablation electrode, surrounding blood and tissue. The fluid network comprises a circumferential channel having an annular shape and fluidly coupled to at least one proximal longitudinal channel configured to conduct fluid along a proximal length of the catheter. The circumferential channel is configured to conduct fluid about at least a circumferential portion of the catheter. The fluid network further comprises a plurality of distal longitudinal channels fluidly coupled to the circumferential channel, with the plurality of distal longitudinal channels being configured to conduct fluid a long a distal length of the catheter. The fluid network occupies a region of the catheter peripheral to a central longitudinal axis of the catheter such that other components of the irrigated catheter, including at least one imaging sensor, is disposed within the central region of the ablation electrode.
    Type: Application
    Filed: March 14, 2013
    Publication date: June 12, 2014
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Debbie Stevens-Wright, David MacAdam, Charles A. Gibson
  • Publication number: 20140107644
    Abstract: The present invention encompasses apparatus and methods for mapping electrical activity within the heart. The present invention also encompasses methods and apparatus for creating lesions in the heart tissue (ablating) to create a region of necrotic tissue which serves to disable the propagation of errant electrical impulses caused by an arrhythmia.
    Type: Application
    Filed: December 30, 2013
    Publication date: April 17, 2014
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Gary S. Falwell, Steven J. Burns, Charles A. Gibson, David MacAdam, Nickolas G. Davis
  • Patent number: 8636731
    Abstract: The present invention encompasses apparatus and methods for mapping electrical activity within the heart. The present invention also encompasses methods and apparatus for creating lesions in the heart tissue (ablating) to create a region of necrotic tissue which serves to disable the propagation of errant electrical impulses caused by an arrhythmia.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: January 28, 2014
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Gary S. Falwell, Steven J. Burns, Charles A. Gibson, David MacAdam, Nickolas G. Davis
  • Publication number: 20120310065
    Abstract: The present invention encompasses apparatus and methods for mapping electrical activity within the heart. The present invention also encompasses methods and apparatus for creating lesions in the heart tissue (ablating) to create a region of necrotic tissue which serves to disable the propagation of errant electrical impulses caused by an arrhythmia.
    Type: Application
    Filed: June 4, 2012
    Publication date: December 6, 2012
    Applicant: C.R. Bard, Inc.
    Inventors: Gary S. Falwell, Steven J. Burns, Charles A. Gibson, David MacAdam, Nickolas G. Davis
  • Patent number: 8206384
    Abstract: The present invention encompasses apparatus and methods for mapping electrical activity within the heart. The present invention also encompasses methods and apparatus for creating lesions in the heart tissue (ablating) to create a region of necrotic tissue which serves to disable the propagation of errant electrical impulses caused by an arrhythmia.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: June 26, 2012
    Assignee: C. R. Bard, Inc.
    Inventors: Gary S. Falwell, Steven J. Burns, Charles A. Gibson, David MacAdam, Nickolas G. Davis
  • Publication number: 20100292688
    Abstract: Method and apparatus for treating conductive irregularities in the heart, particularly atrial fibrillation and accessory path arrythmias. An ablative catheter is positioned relative to an inter-atrial electrical pathway, or a vicinity of accessory paths such as the coronary sinus or fossa ovalis, and actuated to form a lesion that partially or completely blocks electrical conduction in at least one direction along the pathway. Method and apparatus for assessing lesion quality are also described.
    Type: Application
    Filed: May 24, 2010
    Publication date: November 18, 2010
    Applicant: C.R. Bard, Inc.
    Inventors: Sheng He DING, David MACADAM
  • Patent number: 7727229
    Abstract: Method and apparatus for treating conductive irregularities in the heart, particularly atrial fibrillation and accessory path arrythmias. An ablative catheter is positioned relative to an inter-atrial electrical pathway, or a vicinity of accessory paths such as the coronary sinus or fossa ovalis, and actuated to form a lesion that partially or completely blocks electrical conduction in at least one direction along the pathway.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: June 1, 2010
    Assignee: C.R. Bard, Inc.
    Inventors: Ding Sheng He, David MacAdam
  • Publication number: 20090306549
    Abstract: Embodiments of the invention relate to a catheter having an ultrasound energy emitting region that is both rotatable about and slidable along the shaft of the catheter. One embodiment is directed to a catheter comprising an ultrasound transducer coupled to the shaft, and at least one actuator coupled to the handle and the ultrasound transducer that is adapted to move the ultra-sound transducer both longitudinally along the shaft and circumferentially about the shaft. Another embodiment of the invention is directed to a catheter comprising an ultrasound transducer coupled to the shaft, and at least one actuator that is adapted to move the sheath both longitudinally along the shaft and circumferentially about the shaft to orient a window of the sheath in a desired position.
    Type: Application
    Filed: February 28, 2006
    Publication date: December 10, 2009
    Applicant: C.R. Bard, Inc.
    Inventors: David MacAdam, Timothy Collins
  • Publication number: 20090074000
    Abstract: A switch (14) that transfers a packet (264) includes a plurality of ports (28) and a switch control system (63) that is electrically connected to the ports (28) and that controls the flow of data through the switch (14). The packet (264) includes a destination vector (215) having one or more original destinations (268). The switch control system (63) receives the destination vector (215) and allows the destination vector (215) to be dynamically updated. For example, the control system (63) can allow the destination vector to be dynamically updated during the transmission of the packet to the one or more original destinations (268). The control system (63) can allow one or more added destinations (268B) to be added to the destination vector (215) and/or the control system (63) can allow one or more of the original destinations (268) to be removed from the destination vector (215) with minimal, if any, influence on performance.
    Type: Application
    Filed: September 17, 2007
    Publication date: March 19, 2009
    Inventors: Robert H. Bishop, Angus David MacAdam