Patents by Inventor Margaret W. Tumas
Margaret W. Tumas 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: 9713483Abstract: The inventions described in this patent application include i) a torqueable introducer sheath which is useable in conjunction with a transvascular passageway forming catheter to effect precise rotational control of the catheter; ii) an anchorable guide catheter which is useable in conjunction with an intravascular imaging catheter and a transvascular passageway-forming catheter to effect precise positioning and aiming of the passageway-forming catheter; iii) a passageway forming catheter having a torqueable proximal portion to facilitate precise rotational positioning of the distal portion of the catheter; iv) a deflectable-tipped passageway forming catheter, v) various markers and other apparatus useable in conjunction with any of the passageway-forming catheters to facilitate precise positioning and aiming of the catheter, and vi) an apparatus which may be formed within a catheter to prevent a member, apparatus of flow of material from being inadvertently advanced through a lumen of the catheter.Type: GrantFiled: March 6, 2014Date of Patent: July 25, 2017Assignee: Medtronic Vascular, Inc.Inventors: Joshua Makower, J. Christopher Flaherty, Timothy R. Machold, Jason B. Whitt, Philip Christopher Evard, Patrick Edward Macaulay, John Thomas Garibotto, Margaret W Tumas, Alan Robert Selfridge
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Publication number: 20140236207Abstract: The inventions described in this patent application include i) a torqueable introducer sheath which is useable in conjunction with a transvascular passageway forming catheter to effect precise rotational control of the catheter; ii) an anchorable guide catheter which is useable in conjunction with an intravascular imaging catheter and a transvascular passageway-forming catheter to effect precise positioning and aiming of the passageway-forming catheter; iii) a passageway forming catheter having a torqueable proximal portion to facilitate precise rotational positioning of the distal portion of the catheter; iv) a deflectable-tipped passageway forming catheter, v) various markers and other apparatus useable in conjunction with any of the passageway-forming catheters to facilitate precise positioning and aiming of the catheter, and vi) an apparatus which may be formed within a catheter to prevent a member, apparatus of flow of material from being inadvertently advanced through a lumen of the catheter.Type: ApplicationFiled: March 6, 2014Publication date: August 21, 2014Applicant: Medtronic Vascular, Inc.Inventors: Joshua Makower, Christopher Flaherty, Timothy R. Machold, Jason Brian Whitt, Philip Christopher Evard, Patrick Edward Macaulay, John Thomas Garibotto, Margaret W. Tumas, Alan Robert Selfridge
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Patent number: 8753366Abstract: The inventions described in this patent application include i) a torqueable introducer sheath which is useable in conjunction with a transvascular passageway forming catheter to effect precise rotational control of the catheter; ii) an anchorable guide catheter which is useable in conjunction with an intravascular imaging catheter and a transvascular passageway-forming catheter to effect precise positioning and aiming of the passageway-forming catheter; iii) a passageway forming catheter having a torqueable proximal portion to facilitate precise rotational positioning of the distal portion of the catheter; iv) a deflectable-tipped passageway forming catheter, v) various markers and other apparatus useable in conjunction with any of the passageway-forming catheters to facilitate precise positioning and aiming of the catheter, and vi) an apparatus which may be formed within a catheter to prevent a member, apparatus of flow of material from being inadvertently advanced through a lumen of the catheter.Type: GrantFiled: December 10, 2009Date of Patent: June 17, 2014Assignee: Medtronic Vascular, Inc.Inventors: Joshua Makower, J. Christopher Flaherty, Timothy R. Machold, Jason Brian Whitt, Philip Christopher Evard, Patrick Edward Macaulay, John Thomas Garibotto, Margaret W. Tumas, Alan Robert Selfridge
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Patent number: 7849860Abstract: Methods and apparatus for direct coronary revascularization wherein a transmyocardial passageway is formed between a chamber of the heart and a coronary blood vessel to permit blood to flow therebetween. In some embodiments, the transmyocardial passageway is formed between a chamber of the heart and a coronary vein. The invention includes unstented transmyocardial passageways, as well as transmyocardial passageways wherein protrusive stent devices extend from the transmyocardial passageway into an adjacent coronary vessel or chamber of the heart. The apparatus of the present invention include protrusive stent devices for stenting of transmyocardial passageways, intraluminal valving devices for valving of transmyocardial passageways, intracardiac valving devices for valving of transmyocardial passageways, endogenous tissue valves for valving of transmyocardial passageways, and ancillary apparatus for use in conjunction therewith.Type: GrantFiled: January 30, 2006Date of Patent: December 14, 2010Assignee: Medtronic Vascular, Inc.Inventors: Joshua Makower, J. Christopher Flaherty, Timothy R. Machold, Jason Brian Whitt, Margaret W. Tumas, Theodore C. Lamson, Marc Jensen
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Publication number: 20100094259Abstract: The inventions described in this patent application include i) a torqueable introducer sheath which is useable in conjunction with a transvascular passageway forming catheter to effect precise rotational control of the catheter; ii) an anchorable guide catheter which is useable in conjunction with an intravascular imaging catheter and a transvascular passageway-forming catheter to effect precise positioning and aiming of the passageway-forming catheter; iii) a passageway forming catheter having a torqueable proximal portion to facilitate precise rotational positioning of the distal portion of the catheter; iv) a deflectable-tipped passageway forming catheter, v) various markers and other apparatus useable in conjunction with any of the passageway-forming catheters to facilitate precise positioning and aiming of the catheter, and vi) an apparatus which may be formed within a catheter to prevent a member, apparatus of flow of material from being inadvertently advanced through a lumen of the catheter.Type: ApplicationFiled: December 10, 2009Publication date: April 15, 2010Applicant: Medtronic Vascular, Inc.Inventors: Joshua Makower, J. Christopher Flaherty, Timothy R. Machold, Jason Brian Whitt, Philip Christopher Evard, Patrick Edward Macaulay, John Thomas Garibotto, Margaret W. Tumas, Alan Robert Selfridge
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Patent number: 7648517Abstract: The inventions described in this patent application include i) a torqueable introducer sheath which is useable in conjunction with a transvascular passageway forming catheter to effect precise rotational control of the catheter; ii) an anchorable guide catheter which is useable in conjunction with an intravascular imaging catheter and a transvascular passageway-forming catheter to effect precise positioning and aiming of the passageway-forming catheter; iii) a passageway forming catheter having a torqueable proximal portion to facilitate precise rotational positioning of the distal portion of the catheter; iv) a deflectable-tipped passageway forming catheter, v) various markers and other apparatus useable in conjunction with any of the passageway-forming catheters to facilitate precise positioning and aiming of the catheter, and vi) an apparatus which may be formed within a catheter to prevent a member, apparatus of flow of material from being inadvertently advanced through a lumen of the catheter.Type: GrantFiled: July 24, 2001Date of Patent: January 19, 2010Assignee: Medtronic Vascular, Inc.Inventors: Joshua Makower, J. Christopher Flaherty, Timothy R. Machold, Jason Brian Whitt, Philip Christopher Evard, Patrick Edward Macauley, John Thomas Garibotto, Margaret W. Tumas, Alan Robert Selfridge
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Patent number: 7159592Abstract: Methods and apparatus for direct coronary revascularization wherein a transmyocardial passageway is formed between a chamber of the heart and a coronary blood vessel to permit blood to flow therebetween. In some embodiments, the transmyocardial passageway is formed between a chamber of the heart and a coronary vein. The invention includes unstented transmyocardial passageways, as well as transmyocardial passageways wherein protrusive stent devices extend from the transmyocardial passageway into an adjacent coronary vessel or chamber of the heart. The apparatus of the present invention include protrusive stent devices for stenting of transmyocardial passageways, intraluminal valving devices for valving of transmyocardial passageways, intracardiac valving devices for valving of transmyocardial passageways, endogenous tissue valves for valving of transmyocardial passageways, and ancillary apparatus for use in conjunction therewith.Type: GrantFiled: November 9, 2000Date of Patent: January 9, 2007Assignee: Medtronic Vascular, Inc.Inventors: Joshua Makower, J. Christopher Flaherty, Timothy R. Machold, Jason Brian Whitt, Margaret W. Tumas, Theodore C. Lamson, Marc Jensen
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Patent number: 6929009Abstract: Methods and apparatus for direct coronary revascularization wherein a transmyocardial passageway is formed between a chamber of the heart and a coronary blood vessel to permit blood to flow therebetween. In some embodiments, the transmyocardial passageway is formed between a chamber of the heart and a coronary vein. The invention includes unstented transmyocardial passageways, as well as transmyocardial passageways wherein protrusive stent devices extend from the transmyocardial passageway into an adjacent coronary vessel or chamber of the heart. The apparatus of the present invention include protrusive stent devices for stenting of transmyocardial passageways, intraluminal valving devices for valving of transmyocardial passageways, intracardiac valving devices for valving of transmyocardial passageways, endogenous tissue valves for valving of transmyocardial passageways, and ancillary apparatus for use in conjunction therewith.Type: GrantFiled: May 16, 2002Date of Patent: August 16, 2005Assignee: Medtronic Vascular, Inc.Inventors: Joshua Makower, J. Christopher Flaherty, Timothy R. Machold, Jason Brian Whitt, Margaret W. Tumas, Theodore C. Lamson, Marc Jensen
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Publication number: 20020179098Abstract: Methods and apparatus for direct coronary revascularization wherein a transmyocardial passageway is formed between a chamber of the heart and a coronary blood vessel to permit blood to flow therebetween. In some embodiments, the transmyocardial passageway is formed between a chamber of the heart and a coronary vein. The invention includes unstented transmyocardial passageways, as well as transmyocardial passageways wherein protrusive stent devices extend from the transmyocardial passageway into an adjacent coronary vessel or chamber of the heart. The apparatus of the present invention include protrusive stent devices for stenting of transmyocardial passageways, intraluminal valving devices for valving of transmyocardial passageways, intracardiac valving devices for valving of transmyocardial passageways, endogenous tissue valves for valving of transmyocardial passageways, and ancillary apparatus for use in conjunction therewith.Type: ApplicationFiled: May 16, 2002Publication date: December 5, 2002Inventors: Joshua Makower, J. Christopher Flaherty, Timothy R. Machold, Jason Brian Whitt, Margaret W. Tumas, Theodore C. Lamson, Marc Jensen
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Publication number: 20020062146Abstract: Methods and apparatus for direct coronary revascularization wherein a transmyocardial passageway is formed between a chamber of the heart and a coronary blood vessel to permit blood to flow therebetween. In some embodiments, the transmyocardial passageway is formed between a chamber of the heart and a coronary vein. The invention includes unstented transmyocardial passageways, as well as transmyocardial passageways wherein protrusive stent devices extend from the transmyocardial passageway into an adjacent coronary vessel or chamber of the heart. The apparatus of the present invention include protrusive stent devices for stenting of transmyocardial passageways, intraluminal valving devices for valving of transmyocardial passageways, intracardiac valving devices for valving of transmyocardial passageways, endogenous tissue valves for valving of transmyocardial passageways, and ancillary apparatus for use in conjunction therewith.Type: ApplicationFiled: November 26, 2001Publication date: May 23, 2002Inventors: Joshua Makower, J. Christopher Flaherty, Timothy R. Machold, Jason Brian Whitt, Margaret W. Tumas, Theodore C. Lamson, Marc Jensen
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Publication number: 20010047165Abstract: The inventions described in this patent application include i) a torqueable introducer sheath which is useable in conjunction with a transvascular passageway forming catheter to effect precise rotational control of the catheter; ii) an anchorable guide catheter which is useable in conjunction with an intravascular imaging catheter and a transvascular passageway-forming catheter to effect precise positioning and aiming of the passageway-forming catheter; iii) a passageway forming catheter having a torqueable proximal portion to facilitate precise rotational positioning of the distal portion of the catheter; iv) a deflectable-tipped passageway forming catheter, v) various markers and other apparatus useable in conjunction with any of the passageway-forming catheters to facilitate precise positioning and aiming of the catheter, and vi) an apparatus which may be formed within a catheter to prevent a member, apparatus of flow of material from being inadvertently advanced through a lumen of the catheter.Type: ApplicationFiled: July 24, 2001Publication date: November 29, 2001Applicant: TransVascular, Inc.Inventors: Joshua Makower, J. Christopher Flaherty, Timothy R. Machold, Jason Brian Whitt, Philip Christopher Evard, Patrick Edward Macaulay, John Thomas Garibotto, Margaret W. Tumas, Alan Robert Selfridge
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Patent number: 6302875Abstract: The inventions described in this patent application include i) a torqueable introducer sheath which is useable in conjunction with a transvascular passageway forming catheter to effect precise rotational control of the catheter; ii) an anchorable guide catheter which is useable in conjunction with an intravascular imaging catheter and a transvascular passageway-forming catheter to effect precise positioning and aiming of the passageway-forming catheter; iii) a passageway forming catheter having a torqueable proximal portion to facilitate precise rotational positioning of the distal portion of the catheter; iv) a deflectable-tipped passageway forming catheter, v) various markers and other apparatus useable in conjunction with any of the passageway-forming catheters to facilitate precise positioning and aiming of the catheter, and vi) an apparatus which may be formed within a catheter to prevent a member, apparatus of flow of material from being inadvertently advanced through a lumen of the catheter.Type: GrantFiled: April 11, 1997Date of Patent: October 16, 2001Assignee: TransVascular, Inc.Inventors: Joshua Makower, J. Christopher Flaherty, Timothy R. Machold, Jason Brian Whitt, Philip Christopher Evard, Patrick Edward Macaulay, John Thomas Garibotto, Margaret W. Tumas, Alan Robert Selfridge