Patents by Inventor Timothy J. Christman
Timothy J. Christman 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: 8972021Abstract: A system and method wirelessly transfers information electromagnetically using a detachable helical antenna. In an example, the detachable helical antenna can include a first threaded portion. In an example, the detachable helical antenna can be configured to mechanically threadably engage an implantable medical device.Type: GrantFiled: March 3, 2009Date of Patent: March 3, 2015Assignee: Cardiac Pacemakers, Inc.Inventors: John M. Edgell, Lawrence D. Swanson, Timothy J. Christman
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Patent number: 8369961Abstract: A system for enabling telemetry in implantable medical devices is provided. An implantable medical device has radio-frequency telemetry capabilities. The device includes a housing and electronic circuitry contained within the housing. The device also includes an array of antennas connected to the electronic circuitry. According to various embodiments, the array and circuitry are adapted to facilitate far-field transmission and reception of modulated radio-frequency energy at one or more specified carrier frequencies. Individual antenna elements in the array are connected simultaneously or in a mutually exclusive manner to electronic circuitry, according to various embodiments. Individual antenna element geometries are sized to optimize individual antennas each for a different range of operating frequencies, according to various embodiments. Other aspects and embodiments are provided herein.Type: GrantFiled: September 23, 2009Date of Patent: February 5, 2013Assignee: Cardiac Pacemakers, Inc.Inventors: Timothy J. Christman, Jason J. Edwardson, Bart A. Carey
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Patent number: 8352044Abstract: A system for enabling telemetry in implantable medical devices is provided. One aspect of this disclosure relates to an implantable medical device having radio-frequency telemetry capabilities. The device includes a housing and electronic circuitry contained within the housing. The device also includes an antenna connected to the electronic circuitry, the antenna having a helical portion and a whip portion, the whip portion separate from a feed conductor and adapted to enhance a radiation pattern of the antenna. According to various embodiments, the antenna and circuitry are adapted to facilitate transmission and reception of modulated radio-frequency energy at a specified carrier frequency. At least a portion of the antenna is embedded in a dielectric compartment, according to various embodiments. Other aspects and embodiments are provided herein.Type: GrantFiled: April 16, 2010Date of Patent: January 8, 2013Assignee: Cardiac Pacemakers, Inc.Inventors: Timothy J. Christman, Jason J. Edwardson, Bart A. Carey
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Publication number: 20100204759Abstract: A system for enabling telemetry in implantable medical devices is provided. One aspect of this disclosure relates to an implantable medical device having radio-frequency telemetry capabilities. The device includes a housing and electronic circuitry contained within the housing. The device also includes an antenna connected to the electronic circuitry, the antenna having a helical portion and a whip portion, the whip portion separate from a feed conductor and adapted to enhance a radiation pattern of the antenna. According to various embodiments, the antenna and circuitry are adapted to facilitate transmission and reception of modulated radio-frequency energy at a specified carrier frequency. At least a portion of the antenna is embedded in a dielectric compartment, according to various embodiments. Other aspects and embodiments are provided herein.Type: ApplicationFiled: April 16, 2010Publication date: August 12, 2010Inventors: Timothy J. Christman, Jason J. Edwardson, Bart A. Carey
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Patent number: 7720544Abstract: A system for enabling telemetry in implantable medical devices is provided. One aspect of this disclosure relates to an implantable medical device having radio-frequency telemetry capabilities. The device includes a housing and electronic circuitry contained within the housing. The device also includes an antenna connected to the electronic circuitry, the antenna having a helical portion and a whip portion, the whip portion separate from a feed conductor and adapted to enhance a radiation pattern of the antenna. According to various embodiments, the antenna and circuitry are adapted to facilitate transmission and reception of modulated radio-frequency energy at a specified carrier frequency. At least a portion of the antenna is embedded in a dielectric compartment, according to various embodiments. Other aspects and embodiments are provided herein.Type: GrantFiled: June 9, 2006Date of Patent: May 18, 2010Assignee: Cardiac Pacemakers, Inc.Inventors: Timothy J. Christman, Jason J. Edwardson, Bart A. Carey
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Publication number: 20100016925Abstract: A system for enabling telemetry in implantable medical devices is provided. An implantable medical device has radio-frequency telemetry capabilities. The device includes a housing and electronic circuitry contained within the housing. The device also includes an array of antennas connected to the electronic circuitry. According to various embodiments, the array and circuitry are adapted to facilitate far-field transmission and reception of modulated radio-frequency energy at one or more specified carrier frequencies. Individual antenna elements in the array are connected simultaneously or in a mutually exclusive manner to electronic circuitry, according to various embodiments. Individual antenna element geometries are sized to optimize individual antennas each for a different range of operating frequencies, according to various embodiments. Other aspects and embodiments are provided herein.Type: ApplicationFiled: September 23, 2009Publication date: January 21, 2010Inventors: Timothy J. Christman, Jason J. Edwardson, Bart A. Carey
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Patent number: 7613522Abstract: A system for enabling telemetry in implantable medical devices is provided. An implantable medical device has device having radio-frequency telemetry capabilities. The device includes a housing and electronic circuitry contained within the housing. The device also includes an array of antennas connected to the electronic circuitry. According to various embodiments, the array and circuitry are adapted to facilitate far-field transmission and reception of modulated radio-frequency energy at one or more specified carrier frequencies. Individual antenna elements in the array are connected simultaneously or in a mutually exclusive manner to electronic circuitry, according to various embodiments. Individual antenna element geometries are sized to optimize individual antennas each for a different range of operating frequencies, according to various embodiments. Other aspects and embodiments are provided herein.Type: GrantFiled: June 9, 2006Date of Patent: November 3, 2009Assignee: Cardiac Pacemakers, Inc.Inventors: Timothy J. Christman, Jason J. Edwardson, Bart A. Carey
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Publication number: 20090228074Abstract: A system and method wirelessly transfers information electromagnetically using a detachable helical antenna. In an example, the detachable helical antenna can include a first threaded portion. In an example, the detachable helical antenna can be configured to mechanically threadably engage an implantable medical device.Type: ApplicationFiled: March 3, 2009Publication date: September 10, 2009Applicant: Cardiac Pacemakers, Inc.Inventors: John M. Edgell, Lawrence D. Swanson, Timothy J. Christman
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Publication number: 20070288066Abstract: A system for enabling telemetry in implantable medical devices is provided. One aspect of this disclosure relates to an implantable medical device having radio-frequency telemetry capabilities. The device includes a housing and electronic circuitry contained within the housing. The device also includes an array of antennas connected to the electronic circuitry. According to various embodiments, the array and circuitry are adapted to facilitate far-field transmission and reception of modulated radio-frequency energy at one or more specified carrier frequencies. Individual antenna elements in the array are connected simultaneously or in a mutually exclusive manner to electronic circuitry having a single transmit/receive antenna port using a switch, according to various embodiments. Individual antenna element geometries are sized to optimize individual antennas each for a different range of operating frequencies, according to various embodiments. Other aspects and embodiments are provided herein.Type: ApplicationFiled: June 9, 2006Publication date: December 13, 2007Inventors: Timothy J. Christman, Jason J. Edwardson, Bart A. Carey
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Publication number: 20070288065Abstract: A system for enabling telemetry in implantable medical devices is provided. One aspect of this disclosure relates to an implantable medical device having radio-frequency telemetry capabilities. The device includes a housing and electronic circuitry contained within the housing. The device also includes an antenna connected to the electronic circuitry, the antenna having a helical portion and a whip portion, the whip portion separate from a feed conductor and adapted to enhance a radiation pattern of the antenna. According to various embodiments, the antenna and circuitry are adapted to facilitate transmission and reception of modulated radio-frequency energy at a specified carrier frequency. At least a portion of the antenna is embedded in a dielectric compartment, according to various embodiments. Other aspects and embodiments are provided herein.Type: ApplicationFiled: June 9, 2006Publication date: December 13, 2007Inventors: Timothy J. Christman, Jason J. Edwardson, Bart A. Carey