Patents by Inventor William J. Linder

William J. Linder 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: 10918875
    Abstract: An implantable medical device (IMD) with a receiving coil for wireless power transfer. The receiving coil may be disposed about a flux concentrator located in a housing of the IMD. The flux concentrator may concentrate non-radiative near-field energy through the receiving coil. In some cases, the near-field energy may be captured and converted into electrical energy that may be used to recharge a rechargeable power source of the IMD.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: February 16, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Keith R. Maile, William J. Linder, Moira B. Sweeney, Ryan Peter Solstad
  • Patent number: 10905889
    Abstract: Implantable medical devices such as leadless stimulation devices that may provide longer battery life while minimizing device size. In some cases, having the outer housing of the implantable medical device serve multiple roles, such as the battery case for an internal battery, may permit reduced device size by eliminating one or more layers or components within the device.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: February 2, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: William J. Linder, Keith R. Maile
  • Publication number: 20210008378
    Abstract: Various implantable device embodiments may comprise a neural stimulator configured to deliver a neurostimulation therapy with stimulation ON times and stimulation OFF times where a dose of the neurostimulation therapy is provided by a number of neurostimulation pulses over a period of time. The neural stimulator may be configured to monitor the dose of the delivered neurostimulation therapy against dosing parameters. The neural stimulator may be configured to declare a fault if the monitored dose does not favorably compare to a desired dose for the neurostimulation therapy, or may be configured to record data for the monitored dose of the delivered neurostimulation therapy, or may be configured to both record data for the monitored dose of the delivered neurostimulation therapy and declare a fault if the monitored dose does not favorably compare to a desired dose for the neurostimulation therapy.
    Type: Application
    Filed: September 29, 2020
    Publication date: January 14, 2021
    Inventors: Doug M. Birkholz, Douglas J. Brandner, Douglas J. Gifford, David J. Ternes, William J. Linder
  • Patent number: 10881869
    Abstract: Near-field energy transmitters for charging a rechargeable power source of an implantable medical device (IMD). In some cases, the transmitter may include an output driver that may drive a transmit coil such that near-field energy is transmitted to the IMD at a determined frequency. In some cases, the IMD may include a receiving coil that may capture the near-field energy and then convert the near-field energy into electrical energy that may be used to recharge the rechargeable power source. Since the rechargeable power source does not have to maintain sufficient energy stores in a single charge for the entire expected life of the IMD, the power source itself and thus the IMD may be made smaller while still meeting device longevity requirements.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: January 5, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Keith R. Maile, William J. Linder, Michael J. Kane, Jeffrey E. Stahmann, Jacob M. Ludwig, Brendan Early Koop, Daniel Joseph Landherr, Greg Paul Carpenter
  • Patent number: 10881863
    Abstract: Implantable medical devices such as leadless cardiac pacemakers may be configured to communicate using more than one mode of communication. For example, in some cases, an implantable medical device may be configured to communicate via conducted communication in some circumstances and to communicate via inductive communication in other circumstances. In some cases, the implantable medical device may be configured to switch between communication modes in order to improve communication.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: January 5, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Keith R. Maile, William J. Linder, Jacob M. Ludwig
  • Publication number: 20200360703
    Abstract: A medical device includes: a case at least a portion of which functions as a first electrode; a second electrode disposed in a header coupled to the case; a core assembly, the core assembly including operational circuitry enclosed within a core assembly housing, wherein the case includes the core assembly housing; and a battery assembly, the battery assembly including a battery enclosed within a battery housing, where the case further comprises the battery housing; where the operational circuitry is configured to drive a regulated voltage onto the case.
    Type: Application
    Filed: May 13, 2020
    Publication date: November 19, 2020
    Inventors: Ron A. Balczewski, William J. Linder, Dan C. Goldman, Nicholas J. Slessman, Aleksandra Kharam
  • Publication number: 20200338345
    Abstract: Embodiments herein relate to medical devices and methods for using the same to treat cancerous tumors within a bodily tissue. A medical device system is included having an electric field generating circuit and control circuitry configured to control delivery of the one or more electric fields from the electric field generating circuit to the site of the cancerous tissue. An implantable lead is included having a lead body including a first electrical conductor disposed within the lead body, and a first electrode coupled to the lead body, the first electrode in electrical communication with the first electrical conductor, wherein the first electrical conductor forms part of an electrical circuit by which the electric fields from the electric field generating circuit are delivered to the site of the cancerous tissue, and the first electrode can include a conductive coil filar disposed around the lead body. Other embodiments are also included herein.
    Type: Application
    Filed: April 22, 2020
    Publication date: October 29, 2020
    Inventors: Brian L. Schmidt, Devon N. Arnholt, Keith R. Maile, Sarah Melissa Gruba, William J. Linder
  • Publication number: 20200338344
    Abstract: Embodiments herein relate to medical devices and methods for using the same to treat cancerous tumors within a bodily tissue. A medical device system is included having at least one electric field generating circuit configured to generate one or more electric fields; control circuitry in communication with the electric field generating circuit, the control circuitry configured to control delivery of the one or more electric fields from the at least one electric field generating circuit; and two or more electrodes to deliver the electric fields to the site of a cancerous tumor within a patient. At least one electrode can be configured to be implanted. At least one electrode can be configured to be external. The control circuitry can cause the electric field generating circuit to generate one or more electric fields at frequencies selected from a range of between 10 kHz to 1 MHz.
    Type: Application
    Filed: April 22, 2020
    Publication date: October 29, 2020
    Inventors: Brian L. Schmidt, Devon N. Arnholt, Benjamin Keith Stein, Keith R. Maile, William J. Linder, Ron A. Balczewski, Jacob M. Ludwig, Aleksandra Kharam
  • Publication number: 20200338346
    Abstract: Embodiments herein relate to medical devices and methods for using the same to treat cancerous tumors within a bodily tissue. A medical device system is included having an electric field generating circuit configured to generate one or more electric fields and a control circuit in communication with the electric field generating circuit. The control circuit configured to control delivery of the one or more electric fields from the electric field generating circuit. The system can include two or more electrodes to deliver the electric fields to a site of a cancerous tumor within a patient and a temperature sensor to measure the temperature of tissue at the site of the cancerous tumor. The control circuit can cause the electric field generating circuit to generate one or more electric fields at frequencies selected from a range of between 10 kHz to 1 MHz. Other embodiments are also included herein.
    Type: Application
    Filed: April 22, 2020
    Publication date: October 29, 2020
    Inventors: Brian L. Schmidt, Benjamin Keith Stein, Keith R. Maile, William J. Linder, Aleksandra Kharam
  • Patent number: 10814135
    Abstract: Various implantable device embodiments may comprise a neural stimulator configured to deliver a neurostimulation therapy to stimulate tissue. A prescribed dose of the neurostimulation therapy relates to a therapeutically-effective and safe amount of charge delivered to the stimulated tissue over a period of time. The neural stimulator may include a power supply used to deliver the neurostimulation therapy, and a charge/current monitor configured to monitor a delivered dose of the neurostimulation therapy with respect to the prescribed dose to determine whether the delivered dose is delivering the therapeutically-effective and safe amount of charge to the stimulated tissue over the period of time.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: October 27, 2020
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Doug M. Birkholz, Douglas J. Brandner, Douglas J. Gifford, David J. Ternes, William J. Linder
  • Publication number: 20200330757
    Abstract: Embodiments herein relate to a medical device for treating a cancerous tumor, including an electric field generating circuit configured to generate one or more electric fields at or near a site of the cancerous tumor and control circuitry in communication with the electric field generating circuit. The medical device includes one or more supply wires in electrical communication with the electric field generating circuit and one or more supply electrodes. The supply electrodes are configured to deliver an electric field at or near the site of the cancerous tumor. The medical device can include one or more sensing wires in electrical communication with the control circuitry and one or more sensing electrodes. The sensing electrodes can be configured to measure an impedance of the cancerous tumor at at least two different electric field strengths. Other embodiments are also included herein.
    Type: Application
    Filed: April 16, 2020
    Publication date: October 22, 2020
    Inventors: Brian L. Schmidt, Benjamin Keith Stein, Keith R. Maile, William J. Linder, Ron A. Balczewski, Sarah Melissa Gruba, Tucker James Nelson, Aleksandra Kharam
  • Publication number: 20200330756
    Abstract: Embodiments herein relate to a medical device for treating a cancerous tumor, the medical device having a first lead including a first wire and second wire; a second lead can include a third wire and fourth wire; and a first electrode in electrical communication with the first wire, a second electrode in electrical communication with the second wire, a third electrode in electrical communication with the third wire, and a fourth electrode in electrical communication with the fourth wire. The first and third electrodes form a supply electrode pair configured to deliver one or more electric fields to the cancerous tumor. The second and fourth electrodes form a sensing electrode pair configured to measure an impedance of the cancerous tumor independent of an impedance of the first electrode, the first wire, the third electrode, the third wire, and components in electrical communication therewith. Other embodiments are also included herein.
    Type: Application
    Filed: April 16, 2020
    Publication date: October 22, 2020
    Inventors: Brian L. Schmidt, Devon N. Arnholt, Benjamin Keith Stein, Keith R. Maile, William J. Linder, Ron A. Balczewski, Aleksandra Kharam
  • Patent number: 10729898
    Abstract: An apparatus comprises a cardiac signal sensing circuit configured for coupling electrically to a plurality of electrodes and to sense intrinsic cardiac activation at three or more locations within a subject's body using the electrodes; a stimulus circuit configured for coupling to the plurality of electrodes; a signal processing circuit electrically coupled to the cardiac signal sensing circuit and configured to determine a baseline intrinsic activation vector according to the sensed intrinsic cardiac activation; and a control circuit electrically coupled to the cardiac signal sensing circuit and stimulus circuit and configured to: initiate delivery of electrical pacing therapy using initial pacing parameters determined according to the baseline intrinsic activation vector; initiate sensing of a paced activation vector; and adjust one or more pacing therapy parameters according to the paced activation vector.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: August 4, 2020
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Allan Charles Shuros, Yinghong Yu, David J. Ternes, Michael J. Kane, William J. Linder
  • Publication number: 20200238090
    Abstract: An apparatus includes a housing including a bore and a housing groove within the bore and located on an inner surface of the housing; and a coil spring located within the housing and mounted within the housing groove, wherein the housing groove has a non-uniform radius such that the coil spring defines zones of relative low contact force and zones of relative high contact force.
    Type: Application
    Filed: January 21, 2020
    Publication date: July 30, 2020
    Inventors: William J. Linder, James Blilie, Scott Dahl, Arthur J. Foster, Keith R. Maile
  • Patent number: 10722720
    Abstract: At least one of a first medical device and a second medical device may be implanted within a patient while the second medical device may optionally be proximate but external to the patient. At least one of the medical devices has an antenna having at least two electrodes and at least one of the medical devices has an antenna having at least three electrodes. The medical devices can communicate via conducted communication through the patient's tissue between a first pair of electrodes and a second pair of electrodes. At least one of the pairs of electrodes can be selected in accordance with the signal strength of the communication vector between the first and second pairs of electrodes.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: July 28, 2020
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Jeffrey E. Stahmann, William J. Linder, Keith R. Maile
  • Patent number: 10709892
    Abstract: Methods and devices for configuring the use of a motion sensor in an implantable cardiac device. The electrical signals of the patient's heart are observed and may be correlated to the physical motion of the heart as detected by the motion sensor of the implantable cardiac device in order to facilitate temporal configuration of motion sensor data collection that avoids detecting cardiac motion in favor of overall motion of the patient.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: July 14, 2020
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Michael J. Kane, William J. Linder, Benjamin J. Haasl, Paul Huelskamp, Keith R. Maile, Ron A. Balczewski, Bin Mi, John D. Hatlestad, Allan Charles Shuros
  • Patent number: 10695572
    Abstract: A system for recharging an implantable medical device having a rechargeable battery while the implantable medical device is implanted within a patient includes a recharge energy source configured to be disposed exterior to the patient and a recharging bridge configured to be implanted within the patient. The recharging bridge is configured to facilitate energy transfer from the recharge energy source to the implantable medical device.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: June 30, 2020
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Keith R. Maile, Jacob M. Ludwig, William J. Linder
  • Publication number: 20200197700
    Abstract: Cardiac activity of the heart can be sensed using, for example, one or more leadless cardiac pacemakers (LCPs) that are implanted in a close proximity to the heart. Sensing cardiac activity by the one or more leadless cardiac pacemakers (LCPs) can help the system in determining an occurrence of cardiac arrhythmia. For treatment purposes, electrical stimulation therapy, for example anti-tachyarrhythmia pacing (ATP) therapy, can be delivered by at least one of the devices of the system. Such therapy can help treat the detected cardiac arrhythmia. In some instances, one of the leadless cardiac pacemakers can instruct one or more of the other devices to assist in providing pacing therapy. In some instances, one of the leadless cardiac pacemakers can instruct one or more of the other devices to temporarily stop providing therapy or to simply shut down while another device provides therapy.
    Type: Application
    Filed: March 4, 2020
    Publication date: June 25, 2020
    Applicant: Cardiac Packemakers, Inc.
    Inventors: Jeffrey E. Stahmann, William J. Linder, Howard D. Simms, JR., Keith R. Maile, Michael J. Kane
  • Patent number: 10639486
    Abstract: Implantable medical device (IMD) such as leadless cardiac pacemakers may include a rechargeable power source. In some cases, the IMD may include a plurality of receiving coils that may capture a non-radiative near-field energy and then convert the near-field energy into electrical energy that may be used to recharge the rechargeable power source. Accordingly, since the rechargeable power source does not have to maintain sufficient energy stores in a single charge for the entire expected life of the IMD, the power source itself and thus the IMD, may be made smaller while still meeting device longevity expectations.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: May 5, 2020
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: William J. Linder, Michael J. Kane, Jeffrey E. Stahmann, Jacob M. Ludwig, Brendan Early Koop, Daniel Joseph Landherr, Greg Paul Carpenter, Keith R. Maile
  • Patent number: 10632313
    Abstract: Systems, devices, and methods for pacing a heart of a patient are disclosed. A device may include a leadless cardiac pacemaker (LCP) that includes a power supply, a pair of electrodes, and a controller operably connected to the electrodes and the power supply. The controller may identify a capture threshold by setting a pace amplitude at a power supply voltage of the power supply and deliver pacing stimulation pulses with different pulse widths to identify the capture threshold. The LCP may then deliver pacing stimulation pulses based, at least in part, on a pulse amplitude and pulse width associated with the capture threshold, and also adding a capture margin. In some cases, the pulse amplitude may change over time and the LCP may adjust a pulse width along a strength-duration curve to account for the pulse amplitude change and maintain a capture threshold and capture margin.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: April 28, 2020
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Lance Eric Juffer, William J. Linder, Ron A. Balczewski, Keith R. Maile