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).
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Patent number: 10039918Abstract: 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: GrantFiled: April 25, 2016Date of Patent: August 7, 2018Assignee: Cardiac Pacemakers, Inc.Inventors: Arthur J. Foster, Daniel J. Foster, Christopher R. Perrey, Andrew L. De Kock, Patrick Willoughby, Bryan A. Clark
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Patent number: 9782579Abstract: 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: GrantFiled: February 15, 2016Date of Patent: October 10, 2017Assignee: CARDIAC PACEMAKERS, INC.Inventors: David R. Wulfman, Rahul K. Rajgarhia, David J. Smith, Tolga Tas, Daniel J. Cooke, Christopher R. Perrey
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Patent number: 9480834Abstract: 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: GrantFiled: March 15, 2013Date of Patent: November 1, 2016Assignee: Cardiac Pacemakers, Inc.Inventors: Arthur J. Foster, Matthew J. Miller, Christopher R. Perrey
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Publication number: 20160235966Abstract: 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: ApplicationFiled: April 25, 2016Publication date: August 18, 2016Inventors: Arthur J. Foster, Daniel J. Foster, Christopher R. Perrey, Andrew L. De Kock, Patrick Willoughby, Bryan A. Clark
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Patent number: 9364662Abstract: 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: GrantFiled: November 8, 2013Date of Patent: June 14, 2016Assignee: Cardiac Pacemakers, Inc.Inventors: Arthur J. Foster, Daniel J. Foster, Christopher R. Perrey, Andrew L. De Kock, Patrick Willoughby, Bryan A. Clark
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Publication number: 20160158531Abstract: 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: ApplicationFiled: February 15, 2016Publication date: June 9, 2016Inventors: David R. Wulfman, Rahul K. Rajgarhia, David J. Smith, Tolga Tas, Daniel J. Cooke, Christopher R. Perrey
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Patent number: 9345873Abstract: 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: GrantFiled: August 2, 2013Date of Patent: May 24, 2016Assignee: Cardiac Pacemakers, Inc.Inventors: David R. Wulfman, Rahul K. Rajgarhia, David J. Smith, Tolga Tas, Daniel J. Cooke, Christopher R. Perrey
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Patent number: 9199077Abstract: 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: GrantFiled: July 10, 2014Date of Patent: December 1, 2015Assignee: Cardiac Pacemakers, Inc.Inventors: Arthur J. Foster, Christopher R. Perrey, Stephen E. DeRoche
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Patent number: 9050457Abstract: 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: GrantFiled: February 6, 2014Date of Patent: June 9, 2015Assignee: Cardiac Pacemakers, Inc.Inventors: Arthur J. Foster, Christopher R. Perrey, Stephen E. DeRoche, Timothy R. Jackson, Andrew L. De Kock
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Publication number: 20140324139Abstract: 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: ApplicationFiled: July 10, 2014Publication date: October 30, 2014Inventors: Arthur J. Foster, Christopher R. Perrey, Stephen E. DeRoche
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Publication number: 20140155972Abstract: 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: ApplicationFiled: February 6, 2014Publication date: June 5, 2014Applicant: Cardiac Pacemakers, Inc.Inventors: Arthur J. Foster, Christopher R. Perrey, Stephen E. DeRoche, Timothy R. Jackson, Andrew L. De Kock
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Publication number: 20140135885Abstract: 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: ApplicationFiled: November 8, 2013Publication date: May 15, 2014Applicant: Cardiac Pacemakers, Inc.Inventors: Arthur J. Foster, Daniel J. Foster, Christopher R. Perrey, Andrew L. De Kock, Patrick Willoughby, Bryan A. Clark
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Publication number: 20140052226Abstract: 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: ApplicationFiled: August 2, 2013Publication date: February 20, 2014Applicant: Cardiac Pacemakers, Inc.Inventors: David R. Wulfman, Rahul K. Rajgarhia, David J. Smith, Tolga Tas, Daniel J. Cooke, Christopher R. Perrey
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Publication number: 20130304170Abstract: 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: ApplicationFiled: March 15, 2013Publication date: November 14, 2013Applicant: CARDIAC PACEMAKERS, INC.Inventors: Arthur J. Foster, Matthew J. Miller, Christopher R. Perrey