Patents Assigned to Stereotaxis, Inc.
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Patent number: 7543239Abstract: An interface for remotely controlling a medical device in a patient's body provides a two dimensional display of a three dimensional rendering of the operating region, and allows the user to select the orientation or location of the distal end of the medical device on the display and then operate a navigation system to cause the distal end of the medical device to approximately assume the selected orientation or location.Type: GrantFiled: June 6, 2005Date of Patent: June 2, 2009Assignee: Stereotaxis, Inc.Inventors: Raju R. Viswanathan, Walter M. Blume, Jeffrey M. Garibaldi, John Rauch
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Patent number: 7540288Abstract: An interface for remotely controlling a medical device in a patient's body provides a two dimensional display of a three dimensional rendering of the operating region, and allows the user to select the orientation or location of the distal end of the medical device on the display and then operate a navigation system to cause the distal end of the medical device to approximately assume the selected orientation or location.Type: GrantFiled: June 6, 2005Date of Patent: June 2, 2009Assignee: Stereotaxis, Inc.Inventors: Raju R. Viswanathan, Walter M. Blume, Jeffrey M. Garibaldi, John Rauch
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Patent number: 7540866Abstract: An interface for remotely controlling a medical device in a patient's body provides a two dimensional display of a three dimensional rendering of the operating region, and allows the user to select the orientation or location of the distal end of the medical device on the display and then operate a navigation system to cause the distal end of the medical device to approximately assume the selected orientation or location.Type: GrantFiled: June 6, 2005Date of Patent: June 2, 2009Assignee: Stereotaxis, Inc.Inventors: Raju R. Viswanathan, Walter M. Blume, Jeffrey M. Garibaldi, John Rauch
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Patent number: 7537570Abstract: A method is provided to facilitate the movement of a medical device for automated mapping of anatomical surfaces of a subject's heart with a remote navigation. The method may include one or more distinct movements for moving a medical device for mapping a portion of an anatomical surface of a subject's heart. Upon establishing contact of the tip of the medical device with a surface of the heart, one method provides for moving the medical device along the surface of the heart towards an anatomical feature until a loss of contact with the surface is sensed, and determining the point where the loss of contact occurred to identify at least one point along the anatomical feature. The process may be repeated to identify a multiplicity of points that serve to define the ridge on the interior heart surface. The ridge location in the anatomical map can be used as a reference or guide to facilitate the further mapping of physiological properties and to plan therapy delivery during the medical procedure.Type: GrantFiled: September 11, 2007Date of Patent: May 26, 2009Assignee: Stereotaxis, Inc.Inventor: Nathan Kastelein
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Patent number: 7516416Abstract: An interface for remotely controlling a medical device in a patient's body provides a two dimensional display of a three dimensional rendering of the operating region, and allows the user to select the orientation or location of the distal end of the medical device on the display and then operate a navigation system to cause the distal end of the medical device to approximately assume the selected orientation or location.Type: GrantFiled: June 6, 2005Date of Patent: April 7, 2009Assignee: Stereotaxis, Inc.Inventors: Raju R. Viswanathan, Walter M. Blume, Jeffrey M. Garibaldi, John Rauch
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Patent number: 7505615Abstract: A method of screening subjects for medical procedures involving the remote navigation of a medical device through the vasculature in an operating region. The method includes processing the image data of the operating region to determine a measure of the complexity of at least a portion of the vasculature in the operating region; and generating a recommendation about at least one parameter of the procedure based at least in part upon a comparison between the determined measure of complexity and a predetermined value.Type: GrantFiled: May 5, 2006Date of Patent: March 17, 2009Assignee: Stereotaxis, Inc.Inventor: Raju R. Viswanathan
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Patent number: 7495537Abstract: A method and apparatus for dynamic magnetic field control using multiple magnets. Control methods and system means are described that allow dynamically changing the magnetic field generated at a point in space by a multiplicity of magnets.Type: GrantFiled: August 10, 2006Date of Patent: February 24, 2009Assignee: Stereotaxis, Inc.Inventor: Ilker Tunay
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Patent number: 7389778Abstract: 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: GrantFiled: April 29, 2004Date of Patent: June 24, 2008Assignee: Stereotaxis, Inc.Inventors: Michael E. Sabo, Rogers C. Ritter, Roger N. Hastings, Raju R. Viswanathan
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Patent number: 7346379Abstract: An electrophysiology catheter includes a tube having a proximal end, a distal end, and a lumen therebetween. The tube is preferably comprised of multiple sections of different flexibility, arranged so that the flexibility of the catheter increases from the proximal end to the distal end. There is a first generally hollow electrode member at the distal end. At least one magnetically responsive element is disposed at least partially in the hollow electrode, for orienting the distal end of the catheter with an externally applied magnetic field. Multiple magnets can be distributed over the distal portion of the device. The end electrode can have openings for delivering irrigating fluid, and/or a sleeve can be provided around the tube to create an annular space for the delivering of irrigating fluid. A temperature sensor can be provided to control the operation of the catheter. A localization coil can also be included to sense the position and orientation of the catheter.Type: GrantFiled: December 27, 2005Date of Patent: March 18, 2008Assignee: Stereotaxis, Inc.Inventors: Michael J. Eng, Raju R. Viswanathan, Peter R. Werp, Ilker Tunay, Ashwini K. Pandey, Gareth T. Munger
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Patent number: 7341063Abstract: 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: GrantFiled: March 24, 2006Date of Patent: March 11, 2008Assignee: Stereotaxis, Inc.Inventors: Jeffrey M. Garbibaldi, Roger N. Hastings
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Patent number: 7313429Abstract: A system for magnetically navigating a medical device in an operating region within the body of a patient. The system includes a magnet having a front field projecting from the front of the magnet sufficient to project a magnetic field into the operating region in the patient. The magnet is mounted for movement between a navigation position in which the magnet is located adjacent to the patient with the front of the magnetic generally facing the operating region, and an imaging position in which the magnet is spaced from the patient and the front generally faces away from the operating region.Type: GrantFiled: September 21, 2004Date of Patent: December 25, 2007Assignee: Stereotaxis, Inc.Inventors: Francis M. Creighton, IV, Seth Burgett
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Patent number: 7305263Abstract: A magnetic navigation system for orienting a magnetically responsive medical device in a selected direction within an operating region in a subject's body. The system includes a support for supporting the subject, a magnet system a magnetic field to the operating region, and an imaging system. The magnet system includes at least two magnets disposed on opposite sides of the operating region for applying a magnetic field of at least 0.08 Tesla in any selected direction in the operating region by a change of the position and/or orientation of the magnets within an exclusion zone volume. The imaging system includes an imaging beam source and an imaging beam detector disposed on opposite sides of the operating region. The source and the detector being carried on a C-arm which can pivot about an axis generally parallel to the longitudinal axis of the subject to change the imaging angle.Type: GrantFiled: March 15, 2004Date of Patent: December 4, 2007Assignee: Stereotaxis, Inc.Inventor: Francis M. Creighton, IV
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Patent number: 7286034Abstract: A permanent magnet in which the magnetization direction varies with location to optimize or restrict a magnetic field property in a selected direction at a selected point. The magnetic field property may be, for example, the transverse magnetic field, axial magnetic field, axial gradient of the transverse magnetic field, transverse gradient of the transverse magnetic field, axis gradient of the axial magnetic field, transverse gradient of the axial magnetic field, the product of the transverse magnetic field and the transverse gradient of the transverse magnetic field, the product of the transverse magnetic field and the axial gradient of the transverse magnetic field, the product of the axial magnetic field and the transverse gradient of the axial magnetic field, or the product of the axial magnetic field and the axial gradient of the axial magnetic field.Type: GrantFiled: September 2, 2005Date of Patent: October 23, 2007Assignee: Stereotaxis, Inc.Inventor: Francis M. Creighton
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Patent number: 7276044Abstract: An advancer system is described for moving an elongate medical device within a body. The system includes a drive unit having a motor. The drive unit is configured to translate movement of the motor to the device so as to alternately advance and retract the device relative to the body. The advancer system also includes a user-operable control system configured to control the drive unit. The control system can interface with a magnetic navigation system. The above-described system allows an operating physician to control catheter advancement and retraction while remaining outside an x-ray imaging field. Thus the physician is freed from repeated x-ray exposure.Type: GrantFiled: May 3, 2002Date of Patent: October 2, 2007Assignee: Stereotaxis, Inc.Inventors: Steven J. Ferry, Jennifer R. Finney, Cam Habeger, Vincent Hackenmueller, Andrew F. Hall, Reed A. Houge, Scott G. Klimek, Michael J. Pikus
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Patent number: 7264584Abstract: 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: GrantFiled: March 9, 2004Date of Patent: September 4, 2007Assignee: Stereotaxis, Inc.Inventors: Rogers C. Ritter, Bevil J. Hogg, Peter R. Werp, Walter M. Blume, Francis M. Creighton, IV, Roger N. Hastings
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Patent number: 7248914Abstract: A method of navigating the distal end of a medical device through an operating region in a subject's body includes displaying an x-ray image of the operating region, including the distal end of the medical device; determining the location of the distal end of the medical device in a reference frame translatable to the displayed x-ray image; and displaying an enhanced indication of the distal end of the medical device on the x-ray image to facilitate the navigation of the distal end of the device in the operating region.Type: GrantFiled: June 28, 2002Date of Patent: July 24, 2007Assignee: Stereotaxis, Inc.Inventors: Roger N. Hastings, Steven J. Ferry, Demetrius K. Lopes
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Patent number: 7211082Abstract: A magnetically navigable catheter includes a sheath having a proximal end and a distal end, and an extension member having a proximal end and a distal end, slidably mounted in the sheath so that the distal end portion of the extension member telescopes from the distal end of the sheath. The distal end portion of the extension member being relatively more flexible than the distal end of the sheath. There may be one or more electrodes on the distal end of the extension member. There is also at least one magnet, and preferably more than one magnet, on the distal end portion of the extension member to allow the distal end of extension member to be oriented by the application of an externally applied magnetic field.Type: GrantFiled: February 9, 2004Date of Patent: May 1, 2007Assignee: Stereotaxis, Inc.Inventors: Andrew F. Hall, Walter M. Blume
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Patent number: 7190819Abstract: A method of identifying an elongate medical device in a two-dimensional image of an operating region includes filtering pixels meeting a predetermined intensity requirement for linear scaling, dividing the filtered pixels into groups of contiguous pixels, and selecting from the groups a group corresponding to the medical device.Type: GrantFiled: October 29, 2004Date of Patent: March 13, 2007Assignee: Stereotaxis, Inc.Inventor: Raju R. Viswanathan
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Patent number: 7189198Abstract: A method of delivering a substance to targeted tissue comprising the steps of: delivering a plurality of magnetically responsive particles which are carrying the substance and have a hydrophobic coating into the patient's vasculature upstream of the targeted tissue; and applying a magnetic gradient in the vicinity of the targeted tissue to draw the magnetically responsive particles against the wall of the patient's vasculature in the vicinity of the targeted tissue, to allow the substance on the magnetic particles to migrate through the wall of the patent's vasculature to targeted tissue.Type: GrantFiled: July 3, 2003Date of Patent: March 13, 2007Assignee: Stereotaxis, Inc.Inventors: Jonathan Harburn, Rogers C. Ritter
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Publication number: 20070032746Abstract: The guide wire invention relates to improvements in magnetically navigable medical guide wires for enabling, in addition to magnetic navigation, conventional navigation without the use of a magnetic field. The distal portion of the guide wire may be navigated by either manually applying an axial rotation to the guide wire or by applying a magnetic field to modify the curvature of the distal portion to access small branch vessels in a subject body. The distal portion of the guide wire can also be straightened or aligned with the longitudinal axis of the guide wire by applying a magnetic field that straightens the bent section in the direction of the longitudinal axis, which enables the guide wire to push through a lesion.Type: ApplicationFiled: January 10, 2006Publication date: February 8, 2007Applicant: Stereotaxis, Inc.Inventor: Jonathan Sell