Patents by Inventor Scott J. Brabec
Scott J. Brabec 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: 11975206Abstract: An implantable medical device (IMD) comprises a plurality of deep tines configured to be advanced into a septum of a heart of a patient in different directions that are not parallel to a longitudinal axis of the implantable medical device, wherein each deep tine of the plurality of deep tines is configured to deliver cardiac pacing to cardiac tissue distal to a chamber of the heart in which the IMD is implanted, and one or more shallow electrodes engageable with the septum, wherein the one or more shallow electrodes are configured to deliver cardiac pacing to the chamber of the heart in which the IMD is implanted.Type: GrantFiled: March 3, 2021Date of Patent: May 7, 2024Assignee: Medtronic, Inc.Inventors: Kaileigh E. Rock, Michael D. Eggen, Jean M. Carver, Duane N. Mateychuk, Zhongping C. Yang, Douglas S. Hine, Scott J. Brabec, Vania Lee
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Publication number: 20210275824Abstract: An implantable medical device (IMD) comprises a plurality of deep tines configured to be advanced into a septum of a heart of a patient in different directions that are not parallel to a longitudinal axis of the implantable medical device, wherein each deep tine of the plurality of deep tines is configured to deliver cardiac pacing to cardiac tissue distal to a chamber of the heart in which the IMD is implanted, and one or more shallow electrodes engageable with the septum, wherein the one or more shallow electrodes are configured to deliver cardiac pacing to the chamber of the heart in which the IMD is implanted.Type: ApplicationFiled: March 3, 2021Publication date: September 9, 2021Inventors: Kaileigh E. Rock, Michael D. Eggen, Jean M. Carver, Duane N. Mateychuk, Zhongping C. Yang, Douglas S. Hine, Scott J. Brabec, Vania Lee
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Publication number: 20150283375Abstract: A method for fabricating an implantable medical electrode includes roughening the electrode substrate, applying an adhesion layer, and depositing a valve metal oxide coating over the adhesion layer under conditions optimized to minimize electrode impedance and post-pulse polarization. The electrode substrate may be a variety of electrode metals or alloys including titanium, platinum, platinum-iridium, or niobium. The adhesion layer may be formed of titanium or zirconium. The valve metal oxide coating is a ruthenium oxide coating sputtered onto the adhesion layer under controlled target power, sputtering pressure, and sputter gas ratio setting optimized to minimize electrode impedance and post-pulse polarization.Type: ApplicationFiled: June 18, 2015Publication date: October 8, 2015Inventors: Lea A. Nygren, James A. Coles, Jr., Scott J. Brabec, Randy G. Rose
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Patent number: 9144685Abstract: An apparatus and method to discriminate cardiac events by sensing atrial and ventricular depolarizations having associated refractory periods thereafter. A fast ventricular rate is detected in response to the sensed ventricular depolarizations. Responsive to detecting the fast ventricular rate, at least one stimulus pulse is delivered to atrial tissue within the associated refractory period of the ventricle but outside of an associated refractory period of the stimulated atrial tissue. A ventricular response to the atrial tissue stimulus pulse is determined, and the cardiac event is discriminated based on the ventricular response to the atrial tissue stimulus pulse.Type: GrantFiled: January 25, 2012Date of Patent: September 29, 2015Assignee: Medtronic, Inc.Inventors: Yong-Fu Xiao, Jeffrey M. Gillberg, Paul J. DeGroot, Eduardo N. Warman, Scott J. Brabec, John L. Sommer, Jon F. Urban, Lepeng Zeng
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Patent number: 8509893Abstract: Various techniques for delivering atrial pacing and supraventricular stimulation to achieve a desired ventricular rate and/or cardiac output are described. One example method described includes delivering a pacing signal configured to cause an atrial depolarization to a heart of a patient, wherein the atrial depolarization results in an associated refractory period during the cardiac cycle, and delivering a signal to a supraventricular portion of the heart of the patient subsequent to the atrial refractory period and during a ventricular refractory period of the cardiac cycle.Type: GrantFiled: October 27, 2010Date of Patent: August 13, 2013Assignee: Medtronic, Inc.Inventors: Yong-Fu Xiao, John L. Sommer, Scott J. Brabec, Lepeng Zeng, Jon F. Urban
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Publication number: 20120232605Abstract: An apparatus and method to discriminate cardiac events by sensing atrial and ventricular depolarizations having associated refractory periods thereafter. A fast ventricular rate is detected in response to the sensed ventricular depolarizations. Responsive to detecting the fast ventricular rate, at least one stimulus pulse is delivered to atrial tissue within the associated refractory period of the ventricle but outside of an associated refractory period of the stimulated atrial tissue. A ventricular response to the atrial tissue stimulus pulse is determined, and the cardiac event is discriminated based on the ventricular response to the atrial tissue stimulus pulse.Type: ApplicationFiled: January 25, 2012Publication date: September 13, 2012Inventors: Yong-Fu Xiao, Jeffrey M. Gillberg, Paul J. DeGroot, Eduardo N. Warman, Scott J. Brabec, John L. Sommer, Jon F. Urban, Lepeng Zeng
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Publication number: 20120232606Abstract: An apparatus and method to discriminate cardiac events by sensing atrial and ventricular depolarizations having associated refractory periods thereafter. A fast ventricular rate is detected in response to the sensed ventricular depolarizations. Responsive to detecting the fast ventricular rate, at least one stimulus pulse is delivered to atrial tissue within the associated refractory period of the ventricle but outside of an associated refractory period of the stimulated atrial tissue. A ventricular response to the atrial tissue stimulus pulse is determined, and the cardiac event is discriminated based on the ventricular response to the atrial tissue stimulus pulse.Type: ApplicationFiled: January 25, 2012Publication date: September 13, 2012Inventors: Yong-Fu Xiao, Jeffrey M. Gillberg, Paul J. DeGroot, Eduardo N. Warman, Scott J. Brabec, John L. Sommer, Jon F. Urban, Lepeng Zeng
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Publication number: 20120109237Abstract: Various techniques for delivering atrial pacing and supraventricular stimulation to achieve a desired ventricular rate and/or cardiac output are described. One example method described includes delivering a pacing signal configured to cause an atrial depolarization to a heart of a patient, wherein the atrial depolarization results in an associated refractory period during the cardiac cycle, and delivering a signal to a supraventricular portion of the heart of the patient subsequent to the atrial refractory period and during a ventricular refractory period of the cardiac cycle.Type: ApplicationFiled: October 27, 2010Publication date: May 3, 2012Applicant: MEDTRONIC, INC.Inventors: Yong-Fu Xiao, John L. Sommer, Scott J. Brabec, Lepeng Zeng, Jon F. Urban
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Patent number: 8155754Abstract: A method for fabricating an implantable medical electrode includes roughening the electrode substrate, applying an adhesion layer, and depositing a valve metal oxide coating over the adhesion layer under conditions optimized to minimize electrode impedance and post-pulse polarization. The electrode substrate may be a variety of electrode metals or alloys including titanium, platinum, platinum-iridium, or niobium. The adhesion layer may be formed of titanium or zirconium. The valve metal oxide coating is a ruthenium oxide coating sputtered onto the adhesion layer under controlled target power, sputtering pressure, and sputter gas ratio setting optimized to minimize electrode impedance and post-pulse polarization.Type: GrantFiled: January 25, 2005Date of Patent: April 10, 2012Assignee: Medtronic, Inc.Inventors: Lea A. Nygren, James A. Coles, Jr., Scott J. Brabec, Randy G. Rose
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Patent number: 7945337Abstract: An insulative housing formed about a distal end of a medical electrical lead body includes a cavity and a port; an ionically conductive medium fills the cavity and is in intimate contact with an electrode surface contained within the cavity. When a current is delivered to the electrode surface contained within the cavity, a first current density generated at the electrode surface is smaller than a second current density generated out from the port of the insulative housing; thus, the port forms a high impedance and low polarization tissue-stimulating electrode.Type: GrantFiled: August 27, 2003Date of Patent: May 17, 2011Assignee: Medtronic, Inc.Inventors: Scott J. Brabec, Jordon D. Honeck, William J. Schindeldecker
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Publication number: 20100324643Abstract: The present invention relates generally to medical devices; in particular and without limitation, to unique electrodes and/or electrical lead assemblies for stimulating cardiac tissue, muscle tissue, neurological tissue, brain tissue and/or organ tissue; to electrophysiology mapping and ablation catheters for monitoring and selectively altering physiologic conduction pathways; and, wherein said electrodes, lead assemblies and catheters optionally include fluid irrigation conduit(s) for providing therapeutic and/or performance enhancing materials to adjacent biological tissue, and wherein each said device is coupled to or incorporates nanotube structures or materials therein. The present invention also provides methods for fabricating, deploying, and operating such medical devices.Type: ApplicationFiled: September 1, 2010Publication date: December 23, 2010Inventors: Scott J. Brabec, Kenneth C. Gardeski
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Patent number: 7844347Abstract: Unique electrodes and/or electrical lead assemblies are provided for stimulating cardiac tissue, muscle tissue, neurological tissue, brain tissue and/or organ tissue; to electrophysiology mapping and ablation catheters for monitoring and selectively altering physiologic conduction pathways. The electrodes, lead assemblies and catheters optionally include fluid irrigation conduit(s) for providing therapeutic and/or performance enhancing materials to adjacent biological tissue. Each device is coupled to or incorporates nanotube structures or materials therein. Methods for fabricating, deploying, and operating such medical devices are also provided.Type: GrantFiled: March 31, 2003Date of Patent: November 30, 2010Assignee: Medtronic, Inc.Inventors: Scott J. Brabec, Kenneth C. Gardeski
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Publication number: 20100298901Abstract: A method and apparatus for reducing a patient's heart rate or blood pressure. The apparatus provides stimulation to the patient's atrial and/or nodal tissue within the associated refractory period of the ventricle but outside of an associated refractory period of the stimulated atrial an/or nodal tissue, responsive to detecting an occurrence of a ventricular depolarization following a preceding atrial depolarization. The apparatus may define a time window following the ventricular depolarization, following the atrial depolarization or determined based upon the timing of both the atrial and ventricular depolarizations. The stimulus may be delivered during or on expiration of the defined time window. The duration of the time window may be pre-set or determined based upon measurements of the patient's refractory periods.Type: ApplicationFiled: April 30, 2010Publication date: November 25, 2010Applicant: Medtronic, Inc.Inventors: John Louis Sommer, Scott J. Brabec, Jon Frederic Urban, Yong-Fu Xiao, Xiaohong Zhou
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Publication number: 20100137963Abstract: A method for fabricating an implantable medical electrode includes roughening the electrode substrate, applying an adhesion layer, and depositing a valve metal oxide coating over the adhesion layer under conditions optimized to minimize electrode impedance and post-pulse polarization. The electrode substrate may be a variety of electrode metals or alloys including titanium, platinum, platinum-iridium, or niobium. The adhesion layer may be formed of titanium or zirconium. The valve metal oxide coating is a ruthenium oxide coating sputtered onto the adhesion layer under controlled target power, sputtering pressure, and sputter gas ratio setting optimized to minimize electrode impedance and post-pulse polarization.Type: ApplicationFiled: December 17, 2009Publication date: June 3, 2010Applicant: Medtronic, Inc.Inventors: Lea A. Nygren, James A. Coles, JR., Scott J. Brabec, Randy G. Rose
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Patent number: 7596415Abstract: The present invention relates generally to medical devices; in particular and without limitation, to unique electrodes and/or electrical lead assemblies for stimulating cardiac tissue, muscle tissue, neurological tissue, brain tissue and/or organ tissue; to electrophysiology mapping and ablation catheters for monitoring and selectively altering physiologic conduction pathways; and, wherein said electrodes, lead assemblies and catheters optionally include fluid irrigation conduit(s) for providing therapeutic and/or performance enhancing materials to adjacent biological tissue, and wherein each said device is coupled to or incorporates nanostructure or materials therein. The present invention also provides methods for fabricating, deploying, and operating such medical devices.Type: GrantFiled: January 20, 2005Date of Patent: September 29, 2009Assignee: Medtronic, Inc.Inventors: Scott J. Brabec, Kenneth C. Gardeski, Suping Lyu, James A. Coles, Jr., Christopher M. Hobot
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Patent number: 7225035Abstract: A pacing lead includes a first pacing cathode coupled to a first conductor, a second pacing cathode coupled to a second conductor, and a flexible anode coupled to a third conductor. The flexible anode has a length less than approximately 10 millimeters and is spaced apart from and proximal to the first pacing cathode and spaced apart from and distal to the second pacing cathode. The spacing between the anode and the first pacing cathode is approximately equal to the spacing between the anode and the second pacing cathode.Type: GrantFiled: June 24, 2004Date of Patent: May 29, 2007Assignee: Medtronic, Inc.Inventors: Scott J. Brabec, Douglas S. Hine
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Publication number: 20040111141Abstract: The present invention relates generally to medical devices; in particular and without limitation, to unique electrodes and/or electrical lead assemblies for stimulating cardiac tissue, muscle tissue, neurological tissue, brain tissue and/or organ tissue; to electrophysiology mapping and ablation catheters for monitoring and selectively altering physiologic conduction pathways; and, wherein said electrodes, lead assemblies and catheters optionally include fluid irrigation conduit(s) for providing therapeutic and/or performance enhancing materials to adjacent biological tissue, and wherein each said device is coupled to or incorporates nanotube structures or materials therein. The present invention also provides methods for fabricating, deploying, and operating such medical devices.Type: ApplicationFiled: March 31, 2003Publication date: June 10, 2004Inventors: Scott J. Brabec, Kenneth C. Gardeski
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Publication number: 20030083697Abstract: An implantable neurological lead is a medical device having at least one low polarization electrode carried on the distal end of the lead. The neurological lead has a proximal end, a distal end, and at least one conductor that is electrically insulated contained in the neurological lead extending from the proximal end to the distal end. The implantable neurological lead is coupleable to an implantable neurological stimulator or implantable neurological monitor. The neurological lead with low polarization electrode has many embodiments and related methods.Type: ApplicationFiled: October 25, 2001Publication date: May 1, 2003Inventors: Michael D. Baudino, Scott J. Brabec, Paul H. Stypulkowski
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Patent number: 6512940Abstract: An implantable pacemaker is provided with subcutaneous spiral electrodes for sensing electrical signals of the heart. Subcutaneous spirals or spiral electrodes are embedded individually into three or four recessed casings placed in a compliant surround that is attached to the perimeter of the implanted medical device. The electrodes are electrically connected to the circuitry of the implanted pacemaker and detect cardiac depolarization waveforms displayable as electrocardiographic tracings on an external instrument such as a programmer. The spiral electrode constitutes the proximal end of a continuous wire that upon egress from the recessed casing is insulated using insulative material.Type: GrantFiled: October 31, 2000Date of Patent: January 28, 2003Assignee: Medtronic, Inc.Inventors: Scott J. Brabec, Kenneth R. Brennen, William Schindeldecker, James Strom
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Patent number: 6363287Abstract: A medical electrical lead having an elongated insulative sheath carrying an elongated electrical conductor therein and having a drug-dispensing electrode assembly coupled to a distal end of the elongated conductor. The electrode assembly takes the form of a conductive electrode member having a distal electrode portion exposed exterior to the elongated sheath and a shank portion extending proximally from the distal portion and coupled to the elongated conductor. A drug release device is mounted around the shank proximal to the distal portion of the electrode member and the electrode member is provided with at least one bore extending from a surface of the release device to a surface of the distal portion of the electrode member.Type: GrantFiled: October 27, 1999Date of Patent: March 26, 2002Assignee: Medtronic, Inc.Inventors: Scott J. Brabec, William Schindeldecker, John L. Sommer, Douglas S. Hine