Patents Assigned to Percardia, Inc.
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Patent number: 6387119Abstract: Described herein are various methods and apparatuses for delivering stents or conduits and other devices into the myocardium of a patient. One preferred stent delivery system provides access to the insertion site in the myocardium by advancing a delivery catheter through a blockage in a coronary artery, or around the blockage through a coronary vein or through a channel or tunnel formed around the blockage. In one embodiment, once the distal end of the delivery catheter is adjacent the myocardium, an angled bend is created in the catheter by actuating expandable steering guides mounted to the catheter which cooperate with the walls of the blood vessel to cause the catheter to turn. Then, a guidewire is advanced through the delivery catheter and into the myocardium. In another embodiment, a tip-deflecting pull wire extends from the distal end of the delivery catheter which may be actuated to turn towards and then inserted into the myocardium.Type: GrantFiled: March 2, 2001Date of Patent: May 14, 2002Assignee: Percardia, Inc.Inventors: Scott J. Wolf, Peter J. Wilk, Vincent Pompili
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Publication number: 20020045928Abstract: The present invention pertains to a method, and related tools for performing the method, of delivering a stent or other like-device to the heart to connect the left ventricle to the coronary artery to thereby supply blood directly from the ventricle to the coronary artery. The method may be used to bypass a total or partial occlusion of a coronary artery. In a preferred embodiment, the inventive method of providing direct blood flow between a heart chamber and a coronary vessel includes placing a guide device and a dilation device through an anterior wall and a posterior wall of the coronary vessel and through a heart wall between the heart chamber and the coronary vessel, the dilation device forming a passageway in the heart wall at a location defined by the guide device, and placing a stent within the passageway.Type: ApplicationFiled: May 1, 2001Publication date: April 18, 2002Applicant: Percardia, Inc.Inventor: Peter Boekstegers
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Publication number: 20020032478Abstract: The method and apparatus described and illustrated herein generally relate to a bypass method to provide blood flow directly from a heart chamber, such as the left ventricle, and coronary vasculature, such as a coronary artery, and a conduit especially suited for placement in the myocardium to provide such flow. The conduit is particularly useful when a blockage partially or completely obstructs the coronary artery, in which case the conduit is positioned distal to the blockage. Aspects of the present invention relate to conduits in the form of stents that have particular configurations exhibiting properties suited to placement in the myocardium.Type: ApplicationFiled: July 31, 2001Publication date: March 14, 2002Applicant: Percardia, Inc.Inventors: Peter Boekstegers, Nancy Briefs, Jerrick Buck, Laurence A. Roth, Robert Swain
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Publication number: 20020007138Abstract: Disclosed is a conduit that provides a bypass around an occlusion or stenosis in a coronary artery. The conduit is a tube adapted to be positioned in the heart wall to provide a passage for blood to flow between a heart chamber and a coronary artery, at a site distal to the occlusion or stenosis. The conduit has a section of blood vessel attached to its interior lumen which preferably includes at least one naturally occurring one-way valve positioned therein. The valve prevents the backflow of blood from the coronary artery into the heart chamber.Type: ApplicationFiled: April 10, 2001Publication date: January 17, 2002Applicant: Percardia, Inc.Inventors: Peter J. Wilk, David Y. Phelps, Scott J. Wolf
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Publication number: 20020004662Abstract: Described herein is a catheter system for delivering an L-shaped conduit into the body of a patient between the left ventricle and coronary artery. A shunt preferably made of semirigid material is inserted into the lumen of a delivery catheter. The delivery catheter is advanced within the patient until its distal end is located adjacent to the desired insertion site, which is preferably the junction between a coronary artery and passageway formed in the myocardium between the left ventricle and coronary artery. A proximal section of the shunt is first advanced out of the delivery catheter into the myocardial passageway. A distal section of the shunt is advanced into the coronary artery, preferably by advancing the distal section of the shunt into the myocardial passageway and then pulling the distal section back into the coronary artery, or by pushing the distal section of the shunt in a folded configuration out of the delivery catheter into the coronary artery.Type: ApplicationFiled: April 10, 2001Publication date: January 10, 2002Applicant: Percardia, Inc.Inventor: Peter J. Wilk
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Publication number: 20010053932Abstract: A conduit is provided to provide a bypass around a blockage in the coronary artery. The conduit is adapted to be positioned in the myocardium or heart wall to provide a passage for blood to flow between a chamber of the heart such as the left ventricle and the coronary artery, distal to the blockage. The stent is self-expanding or uses a balloon to expand the stent in the heart wall. Various attachment means are provided to anchor the stent and prevent its migration.Type: ApplicationFiled: April 10, 2001Publication date: December 20, 2001Applicant: Percardia, Inc.,Inventors: David Y. Phelps, Greg R. Furnish, Todd A. Hall, Mark Griffin, Scott J. Wolf, Peter J. Wilk, Jay Schmelter, Simon Furnish
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Publication number: 20010039445Abstract: Described herein are various methods and apparatuses for delivering stents and other devices into the myocardium of a patient. One preferred stent delivery system provides access to the insertion site in the myocardium by advancing a delivery catheter through a blockage in a coronary artery, or around the blockage through a coronary vein or through a channel or tunnel formed around the blockage. In one embodiment, once the distal end of the delivery catheter is adjacent the myocardium, an angled bend is created in the catheter by actuating expandable steering guides mounted to the catheter which cooperate with the walls of the blood vessel to cause the catheter to turn. Then, a guidewire is advanced through the delivery catheter and into the myocardium. In another embodiment, a tip-deflecting pull wire extends from the distal end of the delivery catheter which may be actuated to turn towards and then inserted into the myocardium.Type: ApplicationFiled: June 27, 2001Publication date: November 8, 2001Applicant: Percardia, Inc.Inventors: Todd A. Hall, Greg R. Furnish, Simon M. Furnish, Scott J. Wolf, Peter J. Wilk, David Y. Phelps, Vincent Pompili
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Publication number: 20010037149Abstract: Improved methods of treatment of diseased or occluded vascular grafts in patients having undergone coronary artery bypass or other bypass surgery are disclosed. Deployment of a conduit in the myocardium at a site distal to the site of attachment of the coronary artery bypass graft allows oxygenated blood to flow from a chamber in the heart directly into the coronary artery, bypassing blockages in the coronary artery and the graft originally used to bypass the coronary artery. To ensure proper positioning, the conduit is delivered through the graft to the myocardium. A new lining for the existing vein graft and methods of delivery are also disclosed.Type: ApplicationFiled: April 10, 2001Publication date: November 1, 2001Applicant: Percardia, IncInventor: Peter J. Wilk
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Publication number: 20010034547Abstract: Described herein are various methods and apparatuses for delivering stents or conduits and other devices into the myocardium of a patient. One preferred stent delivery system provides access to the insertion site in the myocardium by advancing a delivery catheter through a blockage in a coronary artery, or around the blockage through a coronary vein or through a channel or tunnel formed around the blockage. In one embodiment, once the distal end of the delivery catheter is adjacent the myocardium, an angled bend is created in the catheter by actuating expandable steering guides mounted to the catheter which cooperate with the walls of the blood vessel to cause the catheter to turn. Then, a guidewire is advanced through the delivery catheter and into the myocardium. In another embodiment, a tip-deflecting pull wire extends from the distal end of the delivery catheter which may be actuated to turn towards and then inserted into the myocardium.Type: ApplicationFiled: March 2, 2001Publication date: October 25, 2001Applicant: Percardia, Inc.Inventors: Todd A. Hall, Greg R. Furnish, Simon M. Furnish, Scott J. Wolf, Peter J. Wilk, David Y. Phelps, Vincent Pompili
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Patent number: 6302892Abstract: Described herein is a catheter system for delivering an L-shaped conduit into the body of a patient between the left ventricle and coronary artery. A shunt preferably made of semirigid material is inserted into the lumen of a delivery catheter. The delivery catheter is advanced within the patient until its distal end is located adjacent to the desired insertion site, which is preferably the junction between a coronary artery and passageway formed in the myocardium between the left ventricle and coronary artery. A proximal section of the shunt is first advanced out of the delivery catheter into the myocardial passageway. A distal section of the shunt is advanced into the coronary artery, preferably by advancing the distal section of the shunt into the myocardial passageway and then pulling the distal section back into the coronary artery, or by pushing the distal section of the shunt in a folded configuration out of the delivery catheter into the coronary artery.Type: GrantFiled: August 4, 1999Date of Patent: October 16, 2001Assignee: Percardia, Inc.Inventor: Peter J. Wilk
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Patent number: 6290728Abstract: A conduit is provided to provide a bypass around a blockage in the coronary artery. The conduit is adapted to be positioned in the myocardium or heart wall to provide a passage for blood to flow between a chamber of the heart such as the left ventricle and the coronary artery, distal to the blockage. The stent is self-expanding or uses a balloon to expand the stent in the heart wall. Various attachment means are provided to anchor the stent and prevent its migration.Type: GrantFiled: August 4, 1999Date of Patent: September 18, 2001Assignee: Percardia, Inc.Inventors: David Y. Phelps, Greg R. Furnish, Todd A. Hall, Mark Griffin, Scott J. Wolf, Peter J. Wilk, Jay Schmelter, Simon Furnish
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Patent number: 6261304Abstract: Described herein are various methods and apparatuses for delivering stents or conduits and other devices into the myocardium of a patient. One preferred stent delivery system provides access to the insertion site in the myocardium by advancing a delivery catheter through a blockage in a coronary artery, or around the blockage through a coronary vein or through a channel or tunnel formed around the blockage. In one embodiment, once the distal end of the delivery catheter is adjacent the myocardium, an angled bend is created in the catheter by actuating expandable steering guides mounted to the catheter which cooperate with the walls of the blood vessel to cause the catheter to turn. Then, a guidewire is advanced through the delivery catheter and into the myocardium. In another embodiment, a tip-deflecting pull wire extends from the distal end of the delivery catheter which may be actuated to turn towards and then inserted into the myocardium.Type: GrantFiled: August 4, 1999Date of Patent: July 17, 2001Assignee: Percardia, Inc.Inventors: Todd A. Hall, Greg R. Furnish, Simon M. Furnish, Scott J. Wolf, Peter J. Wilk, David Y. Phelps
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Patent number: 6254564Abstract: Disclosed is a conduit that provides a bypass around an occlusion or stenosis in a coronary artery. The conduit is a tube adapted to be positioned in the heart wall to provide a passage for blood to flow between a heart chamber and a coronary artery, at a site distal to the occlusion or stenosis. The conduit has a section of blood vessel attached to its interior lumen which preferably includes at least one naturally occurring one-way valve positioned therein. The valve prevents the backflow of blood from the coronary artery into the heart chamber.Type: GrantFiled: August 4, 1999Date of Patent: July 3, 2001Assignee: Percardia, Inc.Inventors: Peter J. Wilk, David Y. Phelps, Scott J. Wolf
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Patent number: 6253768Abstract: Improved methods of treatment of diseased or occluded vascular grafts in patients having undergone coronary artery bypass or other bypass surgery are disclosed. Deployment of a conduit in the myocardium at a site distal to the site of attachment of the coronary artery bypass graft allows oxygenated blood to flow from a chamber in the heart directly into the coronary artery, bypassing blockages in the coronary artery and the graft originally used to bypass the coronary artery. To ensure proper positioning, the conduit is delivered through the graft to the myocardium. A new lining for the existing vein graft and methods of delivery are also disclosed.Type: GrantFiled: August 4, 1999Date of Patent: July 3, 2001Assignee: Percardia, Inc.Inventor: Peter J. Wilk
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Patent number: 6196230Abstract: Described herein are various methods and apparatuses for delivering stents and other devices into the myocardium of a patient. One preferred stent delivery system provides access to the insertion site in the myocardium by advancing a delivery catheter through a blockage in a coronary artery, or around the blockage through a coronary vein or through a channel or tunnel formed around the blockage. In one embodiment, once the distal end of the delivery catheter is adjacent the myocardium, an angled bend is created in the catheter by actuating expandable steering guides mounted to the catheter which cooperate with the walls of the blood vessel to cause the catheter to turn. Then, a guidewire is advanced through the delivery catheter and into the myocardium. In another embodiment, a tip-deflecting pull wire extends from the distal end of the delivery catheter which may be actuated to turn towards and then inserted into the myocardium.Type: GrantFiled: September 10, 1998Date of Patent: March 6, 2001Assignee: Percardia, Inc.Inventors: Todd A. Hall, Greg R. Furnish, Simon M. Furnish, Scott J. Wolf, Peter J. Wilk, David Y. Phelps, Vincent Pompili