Patents by Inventor Roger Hastings

Roger Hastings 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).

  • Publication number: 20070197899
    Abstract: A method of and system for navigating a medical device in a subject. The device has a magnet in a tip of the device and is navigable in the subject using source magnets positioned outside the subject. A source magnet magnetic field is used to navigate the device tip to a point in the subject. A boost magnetic moment is created by boost coils and is added to a permanent tip magnet moment to increase the torque applied by the externally generated magnetic field to the device tip. At least one boost magnet is used to apply the boost magnetic field. This method also makes it possible to design magnetic navigation systems with reduced size and cost.
    Type: Application
    Filed: January 16, 2007
    Publication date: August 23, 2007
    Inventors: Rogers Ritter, Roger Hastings
  • Publication number: 20070150009
    Abstract: Apparatus, system, and method that include a pacing apparatus having a stent electrode through which pulses of electrical current can be delivered. Stent electrodes receive energy for generating the electrical current from a variety of sources. Sources include from one or more induction coils that can form at least a portion of the stent. Sources can also include an implantable pulse generator coupled to a lead through which pulses of the electrical current are supplied to the stent electrodes.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 28, 2007
    Inventors: Graig Kveen, Roger Hastings, Anupama Sadasiva, Vitaly Shapovalov, Daniel Lafontaine
  • Publication number: 20070150038
    Abstract: Various configurations of systems that employ leadless electrodes to provide pacing therapy are provided. In one example, a system that provides multiple sites for pacing of myocardium of a heart includes wireless pacing electrodes that are implantable at sites proximate the myocardium using a percutaneous, transluminal, catheter delivery system. Each of the electrodes contains a source of electrical energy for pacing the myocardium and is adapted to receive electromagnetic energy from a source outside the myocardium. The system also includes a source adapted for placement outside the myocardium and that uses locally measured electrocardiograms to synchronize pacing of the heart by sending electromagnetic commands to the electrodes to pace the myocardium surrounding the electrodes. Also disclosed is various configurations of such systems, wireless electrode assemblies, and delivery catheters for delivering and implanting the electrode assemblies.
    Type: Application
    Filed: March 8, 2007
    Publication date: June 28, 2007
    Inventors: Roger Hastings, William Drasler, Daniel Lafontaine, Anupama Sadasiva, Scott Smith
  • Publication number: 20070150037
    Abstract: Various configurations of systems that employ leadless electrodes to provide pacing therapy are provided. In one example, a system that provides multiple sites for pacing of myocardium of a heart includes wireless pacing electrodes that are implantable at sites proximate the myocardium using a percutaneous, transluminal, catheter delivery system. Each of the electrodes contains a source of electrical energy for pacing the myocardium and is adapted to receive electromagnetic energy from a source outside the myocardium. The system also includes a source adapted for placement outside the myocardium and that uses locally measured electrocardiograms to synchronize pacing of the heart by sending electromagnetic commands to the electrodes to pace the myocardium surrounding the electrodes. Also disclosed is various configurations of such systems, wireless electrode assemblies, and delivery catheters for delivering and implanting the electrode assemblies.
    Type: Application
    Filed: March 8, 2007
    Publication date: June 28, 2007
    Inventors: Roger Hastings, William Drasler, Daniel Lafontaine, Anupama Sadasiva, Scott Smith
  • Publication number: 20070135804
    Abstract: A method of turning a medical device, having a magnetically responsive element associated with its distal end, at an operating point within an operating region inside a patient's body from an initial direction to a desired final direction, through the movement of at least one external source magnet. The at least one external source magnet is moved in such a way as to change the direction of the distal end of the magnetic medical device from the initial direction to the desired final direction without substantial deviation from the plane containing the initial direction and the desired final direction.
    Type: Application
    Filed: November 21, 2006
    Publication date: June 14, 2007
    Inventors: Rogers Ritter, Bevil Hogg, Peter Werp, Walter Blume, Francis Creighton, Roger Hastings
  • Publication number: 20070135882
    Abstract: Some embodiments of pacing systems employ wireless electrode assemblies to provide pacing therapy. The wireless electrode assemblies may wirelessly receive energy via an inductive coupling so as to provide electrical stimulation to the surrounding heart tissue. In certain embodiments, the wireless electrode assembly may be pivotable so that the proximal end of the wireless electrode assembly may be shifted to a position against the heart wall after the distal end has been secured to the heart wall.
    Type: Application
    Filed: August 28, 2006
    Publication date: June 14, 2007
    Inventors: William Drasler, Michael Pikus, Roger Hastings
  • Publication number: 20070135883
    Abstract: Some embodiments of pacing systems employ wireless electrode assemblies to provide pacing therapy. The wireless electrode assemblies may wirelessly receive energy via an inductive coupling so as to provide electrical stimulation to the surrounding heart tissue. In certain embodiments, the wireless electrode assembly may include one or more biased tines that shift from a first position to a second position to secure the wireless electrode assembly into the inner wall of the heart chamber.
    Type: Application
    Filed: October 13, 2006
    Publication date: June 14, 2007
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: William Drasler, Michael Pikus, Roger Hastings, Scott Smith, Martin Willard, Daniel Lafontaine, Douglas Saholt, Graig Kveen
  • Publication number: 20070088197
    Abstract: A method of navigating a medical device having a changeable magnetic moment within an operating region within a patient, the method includes applying a navigating magnetic field to the operating region with an external source magnet, and changing the direction of the magnetic moment in the medical device to change the orientation of the medical device in a selected direction within the operating region. The magnet moment of the medical device can be created by one or more electromagnet coils, in which case the magnetic moment can be changed by changing the current to the coil. Alternatively, the magnetic moment of the medical device can be created by one or more permanent magnets, in which case the magnetic moment can be changed by mechanically or magnetically manipulating the permanent magnet.
    Type: Application
    Filed: March 24, 2006
    Publication date: April 19, 2007
    Inventors: Jeffrey Garibaldi, Roger Hastings
  • Publication number: 20060129216
    Abstract: The present invention is directed to medical devices that contain at least one tissue contacting surface that is configured to undergo a variation in surface charge in response to a time-dependent signal. Such a variation in surface charge is provided, for example, to enhance or inhibit cellular growth adjacent to, on, or within the at least one tissue contacting surface.
    Type: Application
    Filed: December 14, 2004
    Publication date: June 15, 2006
    Inventors: Roger Hastings, William Drasler, Mark Jenson
  • Publication number: 20060085041
    Abstract: Various configurations of systems that employ leadless electrodes to provide pacing therapy are provided. In one example, a system that provides multiple sites for pacing of myocardium of a heart includes wireless pacing electrode assemblies that are implantable at sites proximate the myocardium using a percutaneous, transluminal, catheter delivery system. Also disclosed are various configurations of such systems, wireless electrode assemblies, and delivery catheters for delivering and implanting the electrode assemblies.
    Type: Application
    Filed: March 7, 2005
    Publication date: April 20, 2006
    Inventors: Roger Hastings, Anupama Sadasiva, Mike Pikus, Kevin Edmunds
  • Publication number: 20060085042
    Abstract: Various configurations of systems that employ leadless electrodes to provide pacing therapy are provided. In one example, a system that provides multiple sites for pacing of myocardium of a heart includes wireless pacing electrode assemblies that are implantable at sites proximate the myocardium using a percutaneous, transluminal, catheter delivery system. Also disclosed are various configurations of such systems, wireless electrode assemblies, and delivery catheters for delivering and implanting the electrode assemblies.
    Type: Application
    Filed: March 7, 2005
    Publication date: April 20, 2006
    Inventors: Roger Hastings, Anupama Sadasiva, Michael Pikus, Graig Kveen
  • Publication number: 20060085039
    Abstract: Various configurations of systems that employ leadless electrodes to provide pacing therapy are provided. In one example, a system that provides multiple sites for pacing of myocardium of a heart includes wireless pacing electrodes that are implantable at sites proximate the myocardium using a percutaneous, transluminal, catheter delivery system. Each of the electrodes contains a source of electrical energy for pacing the myocardium and is adapted to receive electromagnetic energy from a source outside the myocardium. The system also includes a source adapted for placement outside the myocardium and that uses locally measured electrocardiograms to synchronize pacing of the heart by sending electromagnetic commands to the electrodes to pace the myocardium surrounding the electrodes. Also disclosed is various configurations of such systems, wireless electrode assemblies, and delivery catheters for delivering and implanting the electrode assemblies.
    Type: Application
    Filed: October 20, 2004
    Publication date: April 20, 2006
    Inventors: Roger Hastings, William Drassler, Daniel Lafontaine, Anupama Sadasiva, Scott Smith
  • Publication number: 20050257796
    Abstract: Devices and methods for creating a series of percutaneous myocardial revascularization (PMR) channels in the heart. One method includes forming a pattern of channels in the myocardium leading from healthy tissue to hibernating tissue. Suitable channel patterns include lines and arrays. One method includes anchoring a radiopaque marker to a position in the ventricle wall, then using fluoroscopy repeatedly to guide positioning of a cutting tip in the formation of multiple channels. Another method uses radiopaque material injected into each channel formed, as a marker. Yet another method utilizes an anchorable, rotatable cutting probe for channel formation about an anchor member, where the cutting probe can vary in radial distance from the anchor. Still another method utilizes a multiple wire radio frequency burning probe, for formation of multiple channels simultaneously. Still another method utilizes liquid nitrogen to cause localized tissue death.
    Type: Application
    Filed: July 28, 2005
    Publication date: November 24, 2005
    Inventors: Louis Ellis, Daniel Lafontaine, Roger Hastings, Lauri DeVore
  • Publication number: 20050256398
    Abstract: An automated system for navigating a medical device through the lumens and cavities in an operating region in a patient. The system includes an elongate medical device, having a proximal end and a distal end adapted to be introduced into the operating region. The system also includes an imaging system for displaying an image of the operating region, including a representation of the distal end of the medical device in the operating region. The system also includes a localization system for determining the position of the medical device in a frame of reference translatable to the displayed image of the imaging system. Finally, the system includes a system for orienting the medical device in a selected direction in the operating region, this system may be, for example, a magnetic navigation system which acts through the interaction of magnetic fields associated with the medical device inside the operating region and at least one external source magnet outside the patient's body.
    Type: Application
    Filed: May 12, 2004
    Publication date: November 17, 2005
    Inventors: Roger Hastings, Rogers Riters, Peter Werp, Andrew Hall, Walter Blume, John Rauch, Scott Klimek, Raju Viswanathan
  • Publication number: 20050182315
    Abstract: A system for magnetically imaging an operating region in a subject and magnetically navigating a medical device within the operating region includes a first magnet for applying a static magnetic field to the operating region of sufficient strength for magnetically imaging the operating region and sufficiently strong to permit a medical device to be oriented in the operating region by creating a magnetic moment at the distal end of the medical device, and a second magnet for applying a static magnetic field to the operating region of sufficient strength for magnetically imaging the operating region and sufficiently strong to permit a medical device to be oriented in the operating region by creating a magnetic moment at the distal end of the medical device. In an alternate construction, the system includes a first magnet that is movable between a first position to apply a first static magnetic field to the operating region and a second position to apply a second static magnetic field to the operating region.
    Type: Application
    Filed: November 8, 2004
    Publication date: August 18, 2005
    Inventors: Rogers Ritter, Raju Viswanathan, Roger Hastings
  • Publication number: 20050119556
    Abstract: A method of magnetically manipulating a medical device within a body part of a human patient in conjunction with MR imaging includes applying a navigating magnetic field with magnets from the MR imaging device, and changing the magnetic moment of the medical device to change the orientation of the medical device within the body part
    Type: Application
    Filed: November 10, 2004
    Publication date: June 2, 2005
    Inventors: George Gillies, Roger Hastings, Jeffrey Garibaldi, William Broaddus
  • Publication number: 20050054912
    Abstract: A method of navigating a medical device having a changeable magnetic moment within an operating region within a patient, the method includes applying a navigating magnetic field to the operating region with an external source magnet, and changing the direction of the magnetic moment in the medical device to change the orientation of the medical device in a selected direction within the operating region. The magnet moment of the medical device can be created by one or more electromagnet coils, in which case the magnetic moment can be changed by changing the current to the coil. Alternatively, the magnetic moment of the medical device can be created by one or more permanent magnets, in which case the magnetic moment can be changed by mechanically or magnetically manipulating the permanent magnet.
    Type: Application
    Filed: September 7, 2004
    Publication date: March 10, 2005
    Inventors: Jeffrey Garibaldi, Roger Hastings
  • Publication number: 20050043611
    Abstract: A method of navigating a medical device in an operating region in a subject. The method includes applying a magnetic field to the operating region and changing the magnetic moment of the medical device by selectively changing a physical condition of at least one magnet element in the medical device to change the orientation of the device with respect to the applied magnetic field.
    Type: Application
    Filed: April 29, 2004
    Publication date: February 24, 2005
    Inventors: Michael Sabo, Rogers Ritter, Roger Hastings, Raju Viswanathan
  • Publication number: 20050027285
    Abstract: A method of turning a medical device, having a magnetically responsive element associated with its distal end, at an operating point within an operating region inside a patients body from an initial direction to a desired final direction, through the movement of at least one external source magnet. The at least one external source magnet is moved in such a way as to change the direction of the distal end of the magnetic medical device from the initial direction to the desired final direction without substantial deviation from the plane containing the initial direction and the desired final direction.
    Type: Application
    Filed: June 28, 2004
    Publication date: February 3, 2005
    Inventors: Rogers Ritter, Bevil Hogg, Peter Werp, Walter Blume, Francis Creighton, Roger Hastings
  • Patent number: 6375609
    Abstract: An in vivo source of mechanical energy is provided in close proximity to its load. In the disclosed embodiments, the mechanical energy source is a miniaturized motor (“micromotor”) and the load is a miniaturized perfusion pump located at the distal end of a transluminal catheter. The motor is powerful enough to provide the electrical energy needed by the perfusion pump to fluid, and yet small enough to fit inside a body vessel. A position sensor may be provided for automatically controlling the motor's driving current so that it is corresponds to the applied load. An embodiment of the perfusion pump is also provided in which an external energy source is used. Another embodiment is provided wherein a balloon/pump/miniaturized-motor configuration is provided on a distal end of a catheter.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: April 23, 2002
    Assignee: Scimed Life Systems, Inc.
    Inventors: Roger Hastings, Kenneth Larson, Michael Berman, Daniel M. Lafontaine