Patents by Inventor Gene Reu
Gene Reu 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).
-
Patent number: 11950828Abstract: A method of creating an AV fistula between adjacent first and second vessels includes inserting a guidewire from the first vessel into the second vessel. Inserting a catheter including a proximal member and a distal member over the guidewire such that a distal tip of the distal member comes into contact with a selected anastomosis site. Moving the distal member and the proximal member together to clamp tissue surrounding the aperture between the distal face of the proximal member and a proximal face on the distal member. Applying energy to an active heating member on the proximal member to cut and form the aperture, and to weld the edges thereof in order to create a desired fistula between the two vessels. Using a passive heating member disposed on the distal member to create a heating gradient across a tissue contacting surface of the distal member.Type: GrantFiled: October 20, 2021Date of Patent: April 9, 2024Assignee: AVENU MEDICAL, INC.Inventors: Brad M. Kellerman, David Trottingwolf Aldridge, David K. Wrolstad, Mark A. Ritchart, Jeffrey E. Hull, Gene Reu
-
Publication number: 20220401141Abstract: A device for creating an arteriovenous (AV) fistula includes a proximal base having a distal tapered end surface and a distal tip connected to the proximal base and movable relative to the proximal base. The distal tip has a proximal tapered end surface. A first heating assembly, including an energized heating element, is disposed on at least one of the distal tapered end surface and the proximal tapered end surface. A second heating assembly, comprising a passive non-energized heat spreader, is disposed on the other one of the distal tapered end surface and the proximal tapered end surface. The distal tapered end surface and the proximal tapered end surface are adapted to contact opposing sides of a tissue portion to create the fistula. The taper of the proximal tapered end surface matches the taper of the distal tapered end surface, so that the two surfaces match one another.Type: ApplicationFiled: August 17, 2022Publication date: December 22, 2022Inventors: Gene Reu, Brad M. Kellerman, David K. Wrolstad
-
Patent number: 11457970Abstract: A device for creating an arteriovenous (AV) fistula includes a proximal base having a distal tapered end surface and a distal tip connected to the proximal base and movable relative to the proximal base. The distal tip has a proximal tapered end surface. A first heating assembly, including an energized heating element, is disposed on at least one of the distal tapered end surface and the proximal tapered end surface. A second heating assembly, comprising a passive non-energized heat spreader, is disposed on the other one of the distal tapered end surface and the proximal tapered end surface. The distal tapered end surface and the proximal tapered end surface are adapted to contact opposing sides of a tissue portion to create the fistula. The taper of the proximal tapered end surface matches the taper of the distal tapered end surface, so that the two surfaces match one another.Type: GrantFiled: June 16, 2020Date of Patent: October 4, 2022Assignee: AVENU MEDICAL, INC.Inventors: Gene Reu, Brad M. Kellerman, David K. Wrolstad
-
Publication number: 20220039854Abstract: A method of creating an AV fistula between adjacent first and second vessels includes inserting a guidewire from the first vessel into the second vessel. Inserting a catheter including a proximal member and a distal member over the guidewire such that a distal tip of the distal member comes into contact with a selected anastomosis site. Moving the distal member and the proximal member together to clamp tissue surrounding the aperture between the distal face of the proximal member and a proximal face on the distal member. Applying energy to an active heating member on the proximal member to cut and form the aperture, and to weld the edges thereof in order to create a desired fistula between the two vessels. Using a passive heating member disposed on the distal member to create a heating gradient across a tissue contacting surface of the distal member.Type: ApplicationFiled: October 20, 2021Publication date: February 10, 2022Inventors: Brad M. Kellerman, David Trottingwolf Aldridge, David K. Wrolstad, Mark A. Ritchart, Jeffrey E. Hull, Gene Reu
-
Patent number: 11172976Abstract: A catheter-based device tracks over a guidewire which has been placed from a first blood vessel into a second blood vessel. The distal tip of the catheter is advanced into the second vessel while a proximal member remains in the first vessel. Matching blunt tapered surfaces on each of the distal tip and the proximal member are clamped together, with adjacent walls of each vessel between them, after which a known, controlled pressure is applied between the two surfaces. Heat energy is then applied to the blunt surfaces for approximately 1-30 seconds to weld the walls of the two vessels together. After coaptation of the vessel walls, the heat is increased to then cut through the vessel walls to create a fistula of the desired size.Type: GrantFiled: February 19, 2019Date of Patent: November 16, 2021Assignee: Avenu Medical, Inc.Inventors: Brad M. Kellerman, David Trottingwolf Aldridge, David K. Wrolstad, Mark A. Ritchart, Jeffrey E. Hull, Gene Reu
-
Publication number: 20200305951Abstract: A device for creating an arteriovenous (AV) fistula includes a proximal base having a distal tapered end surface and a distal tip connected to the proximal base and movable relative to the proximal base. The distal tip has a proximal tapered end surface. A first heating assembly, including an energized heating element, is disposed on at least one of the distal tapered end surface and the proximal tapered end surface. A second heating assembly, comprising a passive non-energized heat spreader, is disposed on the other one of the distal tapered end surface and the proximal tapered end surface. The distal tapered end surface and the proximal tapered end surface are adapted to contact opposing sides of a tissue portion to create the fistula. The taper of the proximal tapered end surface matches the taper of the distal tapered end surface, so that the two surfaces match one another.Type: ApplicationFiled: June 16, 2020Publication date: October 1, 2020Inventors: Gene Reu, Brad M. Kellerman, David K. Wrolstad
-
Patent number: 10722285Abstract: A device for creating an arteriovenous (AV) fistula includes a proximal base having a distal tapered end surface and a distal tip connected to the proximal base and movable relative to the proximal base. The distal tip has a proximal tapered end surface. A first heating assembly, including an energized heating element, is disposed on at least one of the distal tapered end surface and the proximal tapered end surface. A second heating assembly, comprising a passive non-energized heat spreader, is disposed on the other one of the distal tapered end surface and the proximal tapered end surface. The distal tapered end surface and the proximal tapered end surface are adapted to contact opposing sides of a tissue portion to create the fistula. The taper of the proximal tapered end surface matches the taper of the distal tapered end surface, so that the two surfaces match one another.Type: GrantFiled: September 1, 2016Date of Patent: July 28, 2020Assignee: Avenu Medical, Inc.Inventors: Gene Reu, Brad M. Kellerman, David K. Wrolstad
-
Publication number: 20190247107Abstract: A catheter-based device tracks over a guidewire which has been placed from a first blood vessel into a second blood vessel. The distal tip of the catheter is advanced into the second vessel while a proximal member remains in the first vessel. Matching blunt tapered surfaces on each of the distal tip and the proximal member are clamped together, with adjacent walls of each vessel between them, after which a known, controlled pressure is applied between the two surfaces. Heat energy is then applied to the blunt surfaces for approximately 1-30 seconds to weld the walls of the two vessels together. After coaptation of the vessel walls, the heat is increased to then cut through the vessel walls to create a fistula of the desired size.Type: ApplicationFiled: February 19, 2019Publication date: August 15, 2019Inventors: Brad M. Kellerman, David Trottingwolf Aldridge, David K. Wrolstad, Mark A. Ritchart, Jeffrey E. Hull, Gene Reu
-
Patent number: 10231771Abstract: A catheter-based device tracks over a guidewire which has been placed from a first blood vessel into a second blood vessel. The distal tip of the catheter is advanced into the second vessel while a proximal member remains in the first vessel. Matching blunt tapered surfaces on each of the distal tip and the proximal member are clamped together, with adjacent walls of each vessel between them, after which a known, controlled pressure is applied between the two surfaces. Heat energy is then applied to the blunt surfaces for approximately 1-30 seconds to weld the walls of the two vessels together. After coaptation of the vessel walls, the heat is increased to then cut through the vessel walls to create a fistula of the desired size.Type: GrantFiled: October 17, 2016Date of Patent: March 19, 2019Assignee: Avenu Medical, Inc.Inventors: Brad M. Kellerman, David Trottingwolf Aldridge, David K. Wrolstad, Mark A. Ritchart, Jeffrey E. Hull, Gene Reu
-
Publication number: 20170128118Abstract: A catheter-based device tracks over a guidewire which has been placed from a first blood vessel into a second blood vessel. The distal tip of the catheter is advanced into the second vessel while a proximal member remains in the first vessel. Matching blunt tapered surfaces on each of the distal tip and the proximal member are clamped together, with adjacent walls of each vessel between them, after which a known, controlled pressure is applied between the two surfaces. Heat energy is then applied to the blunt surfaces for approximately 1-30 seconds to weld the walls of the two vessels together. After coaptation of the vessel walls, the heat is increased to then cut through the vessel walls to create a fistula of the desired size.Type: ApplicationFiled: October 17, 2016Publication date: May 11, 2017Inventors: Brad M. Kellerman, David Trottingwolf Aldridge, David K. Wrolstad, Mark A. Ritchart, Jeffrey E. Hull, Gene Reu
-
Publication number: 20170086904Abstract: A device for creating an arteriovenous (AV) fistula includes a proximal base having a distal tapered end surface and a distal tip connected to the proximal base and movable relative to the proximal base. The distal tip has a proximal tapered end surface. A first heating assembly, including an energized heating element, is disposed on at least one of the distal tapered end surface and the proximal tapered end surface. A second heating assembly, comprising a passive non-energized heat spreader, is disposed on the other one of the distal tapered end surface and the proximal tapered end surface. The distal tapered end surface and the proximal tapered end surface are adapted to contact opposing sides of a tissue portion to create the fistula. The taper of the proximal tapered end surface matches the taper of the distal tapered end surface, so that the two surfaces match one another.Type: ApplicationFiled: September 1, 2016Publication date: March 30, 2017Inventors: Gene Reu, Brad M. Kellerman, David K. Wrolstad
-
Patent number: 9474562Abstract: A catheter-based device tracks over a guidewire which has been placed from a first blood vessel into a second blood vessel. The distal tip of the catheter is advanced into the second vessel while a proximal member remains in the first vessel. Matching blunt tapered surfaces on each of the distal tip and the proximal member are clamped together, with adjacent walls of each vessel between them, after which a known, controlled pressure is applied between the two surfaces. Heat energy is then applied to the blunt surfaces for approximately 1-30 seconds to weld the walls of the two vessels together. After coaptation of the vessel walls, the heat is increased to then cut through the vessel walls to create a fistula of the desired size.Type: GrantFiled: February 8, 2013Date of Patent: October 25, 2016Assignee: Avenu Medical, Inc.Inventors: Brad M. Kellerman, David Trottingwolf Aldridge, David K. Wrolstad, Mark A. Ritchart, Jeffrey E. Hull, Gene Reu
-
Patent number: 9439710Abstract: A device for creating an arteriovenous (AV) fistula includes a proximal base having a distal tapered end surface and a distal tip connected to the proximal base and movable relative to the proximal base. The distal tip has a proximal tapered end surface. A first heating assembly, including an energized heating element, is disposed on at least one of the distal tapered end surface and the proximal tapered end surface. A second heating assembly, comprising a passive non-energized heat spreader, is disposed on the other one of the distal tapered end surface and the proximal tapered end surface. The distal tapered end surface and the proximal tapered end surface are adapted to contact opposing sides of a tissue portion to create the fistula. The taper of the proximal tapered end surface matches the taper of the distal tapered end surface, so that the two surfaces match one another.Type: GrantFiled: November 14, 2013Date of Patent: September 13, 2016Assignee: Avenu Medical, Inc.Inventors: Gene Reu, Brad M. Kellerman, David K. Wrolstad
-
Publication number: 20140142561Abstract: A device for creating an arteriovenous (AV) fistula includes a proximal base having a distal tapered end surface and a distal tip connected to the proximal base and movable relative to the proximal base. The distal tip has a proximal tapered end surface. A first heating assembly, including an energized heating element, is disposed on at least one of the distal tapered end surface and the proximal tapered end surface. A second heating assembly, comprising a passive non-energized heat spreader, is disposed on the other one of the distal tapered end surface and the proximal tapered end surface. The distal tapered end surface and the proximal tapered end surface are adapted to contact opposing sides of a tissue portion to create the fistula. The taper of the proximal tapered end surface matches the taper of the distal tapered end surface, so that the two surfaces match one another and fully engage with one another when engaged.Type: ApplicationFiled: November 14, 2013Publication date: May 22, 2014Applicant: Caymus Medical, Inc.Inventors: Gene Reu, Brad M. Kellerman, David K. Wrolstad
-
Publication number: 20130281998Abstract: A catheter-based device tracks over a guidewire which has been placed from a first blood vessel into a second blood vessel. The distal tip of the catheter is advanced into the second vessel while a proximal member remains in the first vessel. Matching blunt tapered surfaces on each of the distal tip and the proximal member are clamped together, with adjacent walls of each vessel between them, after which a known, controlled pressure is applied between the two surfaces. Heat energy is then applied to the blunt surfaces for approximately 1-30 seconds to weld the walls of the two vessels together. After coaptation of the vessel walls, the heat is increased to then cut through the vessel walls to create a fistula of the desired size.Type: ApplicationFiled: February 8, 2013Publication date: October 24, 2013Applicants: Baja Research, LLC, Caymus Medical, Inc.Inventors: Brad M. Kellerman, David Trottingwolf Aldridge, David K. Wrolstad, Mark A. Ritchart, Jeffrey E. Hull, Gene Reu