Patents by Inventor Christopher R. Perrey

Christopher R. Perrey 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: 10039918
    Abstract: An implantable lead includes a lead body having a proximal end portion and a distal end portion. The lead body includes an insulative member having a lumen extending longitudinally between the proximal end portion and the distal end portion. The lead body also includes a generally tubular helical liner disposed coaxially with the lumen within the insulative member. A pitch of the helical liner varies along the length of the lead. The implantable lead also includes an electrode disposed along the lead body in the distal end portion thereof, and a conductor disposed within the lumen and electrically coupled to the electrode. A terminal connector is coupled to the proximal end portion of the lead body and to the conductor.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: August 7, 2018
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Arthur J. Foster, Daniel J. Foster, Christopher R. Perrey, Andrew L. De Kock, Patrick Willoughby, Bryan A. Clark
  • Patent number: 9782579
    Abstract: Described is a medical device lead including a lead body having a conductor lumen including an inner surface. The lead also includes a conductor assembly extending through the conductor lumen; the conductor assembly comprising a conductor member and an outer insulative layer; and an electrode coupled to the conductor cable. The outer insulative layer includes a textured external surface that reduces the coefficient of friction between the outer insulative layer and the inner surface of the conductor lumen through which the conductor assembly extends. Methods of forming the conductor assembly are also described.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: October 10, 2017
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: David R. Wulfman, Rahul K. Rajgarhia, David J. Smith, Tolga Tas, Daniel J. Cooke, Christopher R. Perrey
  • Patent number: 9480834
    Abstract: A medical device lead includes a flexible body having a proximal region with a proximal end, and a distal region with a distal end. A connector is coupled to the proximal end of the flexible body of the lead to electrically and mechanically connect the lead to an implantable pulse generator. A composite wire having a proximal end is electrically coupled to the connector. The composite wire includes an inner conductor element and a plurality of outer conductor elements adjacent to and radially spaced from the inner conductor element. A distal end of each of the inner conductor element and the plurality of outer conductor elements is connected to one of a plurality of electrodes in the distal region of the flexible body.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 1, 2016
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Arthur J. Foster, Matthew J. Miller, Christopher R. Perrey
  • Publication number: 20160235966
    Abstract: An implantable lead includes a lead body having a proximal end portion and a distal end portion. The lead body includes an insulative member having a lumen extending longitudinally between the proximal end portion and the distal end portion. The lead body also includes a generally tubular helical liner disposed coaxially with the lumen within the insulative member. A pitch of the helical liner varies along the length of the lead. The implantable lead also includes an electrode disposed along the lead body in the distal end portion thereof, and a conductor disposed within the lumen and electrically coupled to the electrode. A terminal connector is coupled to the proximal end portion of the lead body and to the conductor.
    Type: Application
    Filed: April 25, 2016
    Publication date: August 18, 2016
    Inventors: Arthur J. Foster, Daniel J. Foster, Christopher R. Perrey, Andrew L. De Kock, Patrick Willoughby, Bryan A. Clark
  • Patent number: 9364662
    Abstract: An implantable lead includes a lead body having a proximal end portion and a distal end portion. The lead body includes an insulative member having a lumen extending longitudinally between the proximal end portion and the distal end portion. The lead body also includes a generally tubular liner disposed coaxially with the lumen within the insulative member. The implantable lead also includes an electrode disposed along the lead body in the distal end portion thereof, and a conductor disposed within the lumen and electrically coupled to the electrode. A terminal connector is coupled to the proximal end portion of the lead body and to the conductor.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: June 14, 2016
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Arthur J. Foster, Daniel J. Foster, Christopher R. Perrey, Andrew L. De Kock, Patrick Willoughby, Bryan A. Clark
  • Publication number: 20160158531
    Abstract: Described is a medical device lead including a lead body having a conductor lumen including an inner surface. The lead also includes a conductor assembly extending through the conductor lumen; the conductor assembly comprising a conductor member and an outer insulative layer; and an electrode coupled to the conductor cable. The outer insulative layer includes a textured external surface that reduces the coefficient of friction between the outer insulative layer and the inner surface of the conductor lumen through which the conductor assembly extends. Methods of forming the conductor assembly are also described.
    Type: Application
    Filed: February 15, 2016
    Publication date: June 9, 2016
    Inventors: David R. Wulfman, Rahul K. Rajgarhia, David J. Smith, Tolga Tas, Daniel J. Cooke, Christopher R. Perrey
  • Patent number: 9345873
    Abstract: Described is a medical device lead including a lead body having a conductor lumen including an inner surface. The lead also includes a conductor assembly extending through the conductor lumen; the conductor assembly comprising a conductor member and an outer insulative layer; and an electrode coupled to the conductor cable. The outer insulative layer includes a textured external surface that reduces the coefficient of friction between the outer insulative layer and the inner surface of the conductor lumen through which the conductor assembly extends. Methods of forming the conductor assembly are also described.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: May 24, 2016
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: David R. Wulfman, Rahul K. Rajgarhia, David J. Smith, Tolga Tas, Daniel J. Cooke, Christopher R. Perrey
  • Patent number: 9199077
    Abstract: An implantable medical lead exhibits reduced heating under MRI conditions. The lead includes a multi-layer coil conductor including an inner coil layer, a middle coil layer disposed around the inner coil layer, and an outer coil layer disposed around the middle coil layer. Each of the coil layers is characterized by one or more of a filar thickness, a coil pitch, or a coil diameter configured such that the coil conductor exhibits a high inductance when exposed to MRI radiation. Each of the coil layers is electrically connected to the other coil layers to provide parallel conductive paths resulting in a coil conductor resistance suitable for defibrillation lead applications.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: December 1, 2015
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Arthur J. Foster, Christopher R. Perrey, Stephen E. DeRoche
  • Patent number: 9050457
    Abstract: An implantable electrical lead includes a lead body and a multi-layer coil conductor extending within the lead body. The multi-layer coil conductor includes a first coil layer and a second coil layer disposed about the first coil layer. The first and second coil layers are configured such that the multi-layer coil conductor has an axial stiffness substantially equal to an axial stiffness of the lead body adjacent to the multi-layer coil conductor.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: June 9, 2015
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Arthur J. Foster, Christopher R. Perrey, Stephen E. DeRoche, Timothy R. Jackson, Andrew L. De Kock
  • Publication number: 20140324139
    Abstract: An implantable medical lead exhibits reduced heating under MRI conditions. The lead includes a multi-layer coil conductor including an inner coil layer, a middle coil layer disposed around the inner coil layer, and an outer coil layer disposed around the middle coil layer. Each of the coil layers is characterized by one or more of a filar thickness, a coil pitch, or a coil diameter configured such that the coil conductor exhibits a high inductance when exposed to MRI radiation. Each of the coil layers is electrically connected to the other coil layers to provide parallel conductive paths resulting in a coil conductor resistance suitable for defibrillation lead applications.
    Type: Application
    Filed: July 10, 2014
    Publication date: October 30, 2014
    Inventors: Arthur J. Foster, Christopher R. Perrey, Stephen E. DeRoche
  • Publication number: 20140155972
    Abstract: An implantable electrical lead includes a lead body and a multi-layer coil conductor extending within the lead body. The multi-layer coil conductor includes a first coil layer and a second coil layer disposed about the first coil layer. The first and second coil layers are configured such that the multi-layer coil conductor has an axial stiffness substantially equal to an axial stiffness of the lead body adjacent to the multi-layer coil conductor.
    Type: Application
    Filed: February 6, 2014
    Publication date: June 5, 2014
    Applicant: Cardiac Pacemakers, Inc.
    Inventors: Arthur J. Foster, Christopher R. Perrey, Stephen E. DeRoche, Timothy R. Jackson, Andrew L. De Kock
  • Publication number: 20140135885
    Abstract: An implantable lead includes a lead body having a proximal end portion and a distal end portion. The lead body includes an insulative member having a lumen extending longitudinally between the proximal end portion and the distal end portion. The lead body also includes a generally tubular liner disposed coaxially with the lumen within the insulative member. The implantable lead also includes an electrode disposed along the lead body in the distal end portion thereof, and a conductor disposed within the lumen and electrically coupled to the electrode. A terminal connector is coupled to the proximal end portion of the lead body and to the conductor.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 15, 2014
    Applicant: Cardiac Pacemakers, Inc.
    Inventors: Arthur J. Foster, Daniel J. Foster, Christopher R. Perrey, Andrew L. De Kock, Patrick Willoughby, Bryan A. Clark
  • Publication number: 20140052226
    Abstract: Described is a medical device lead including a lead body having a conductor lumen including an inner surface. The lead also includes a conductor assembly extending through the conductor lumen; the conductor assembly comprising a conductor member and an outer insulative layer; and an electrode coupled to the conductor cable. The outer insulative layer includes a textured external surface that reduces the coefficient of friction between the outer insulative layer and the inner surface of the conductor lumen through which the conductor assembly extends. Methods of forming the conductor assembly are also described.
    Type: Application
    Filed: August 2, 2013
    Publication date: February 20, 2014
    Applicant: Cardiac Pacemakers, Inc.
    Inventors: David R. Wulfman, Rahul K. Rajgarhia, David J. Smith, Tolga Tas, Daniel J. Cooke, Christopher R. Perrey
  • Publication number: 20130304170
    Abstract: A medical device lead includes a flexible body having a proximal region with a proximal end, and a distal region with a distal end. A connector is coupled to the proximal end of the flexible body of the lead to electrically and mechanically connect the lead to an implantable pulse generator. A composite wire having a proximal end is electrically coupled to the connector. The composite wire includes an inner conductor element and a plurality of outer conductor elements adjacent to and radially spaced from the inner conductor element. A distal end of each of the inner conductor element and the plurality of outer conductor elements is connected to one of a plurality of electrodes in the distal region of the flexible body.
    Type: Application
    Filed: March 15, 2013
    Publication date: November 14, 2013
    Applicant: CARDIAC PACEMAKERS, INC.
    Inventors: Arthur J. Foster, Matthew J. Miller, Christopher R. Perrey