Patents by Inventor Bernard A. Hausen
Bernard A. Hausen 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: 6497710Abstract: Anastomotic stents for connecting a graft vessel to a target vessel, and methods of use thereof. The anastomotic stents of the invention are suitable for use in a variety of anastomosis procedures, including coronary artery bypass grafting. One embodiment of the invention comprises a large vessel anastomotic stent for use with large diameter target vessels such as the aorta or its major side branches. Another embodiment of the invention comprises a small vessel anastomotic stent for use on a target vessel which has a small diameter such as a coronary artery. Another aspect of the invention involves applicators for use with the stents of the invention.Type: GrantFiled: February 7, 2001Date of Patent: December 24, 2002Assignee: Cardica, Inc.Inventors: Stephen A. Yencho, Bernard A. Hausen
-
Patent number: 6478804Abstract: An anastomosis system and method uses an anvil to control and support a tissue site during an anastomosis procedure. The anvil is particularly useful for supporting a wall of a coronary artery during attachment of a graft vessel to the coronary artery because the wall of the coronary artery is very thin, difficult to grasp, and susceptible to tearing. In one method, the anvil is inserted into a pressurized or unpressurized target vessel and is pulled against an inner wall of the target vessel causing tenting of the thin tissue of the vessel wall. A graft vessel is then advanced to the anastomosis site and an end of the graft vessel is positioned adjacent and exterior of the target vessel. Staples are inserted through the tissue of the graft vessel and the target vessel by pivoting the arms of a staple holder towards the anvil. When the ends of the staples engage staple bending features on the anvil, the ends of the staples bend over securing the graft vessel and target vessel together.Type: GrantFiled: April 27, 2001Date of Patent: November 12, 2002Assignee: Cardica, Inc.Inventors: Jaime Vargas, Michael Hendricksen, Stephen A. Yencho, Jamey Nielsen, Bernard A. Hausen, Brendan Donohoe
-
Patent number: 6471713Abstract: A deployment system for forming an incision in a target vessel, for placement of an anastomosis device and for deployment of an anastomosis device having an inner flange formed by radial expansion of the device and an outer flange formed by axial compression of the device.Type: GrantFiled: November 13, 2000Date of Patent: October 29, 2002Assignee: Cardica, Inc.Inventors: Jaime Vargas, Stephen A. Yencho, Jamey Nielsen, Michael Hendricksen, Bernard A. Hausen, Russell C. Mead, Jr., Heather Klaubert, Brendan M. Donohoe, Theodore Bender
-
Patent number: 6461320Abstract: Anastomotic stents for connecting a graft vessel to a target vessel, and methods of use thereof. The anastomotic stents of the invention are suitable for use in a variety of anastomosis procedures, including coronary artery bypass grafting. One embodiment of the invention comprises a large vessel anastomotic stent for use with large diameter target vessels such as the aorta or its major side branches. Another embodiment of the invention comprises a small vessel anastomotic stent for use on a target vessel which has a small diameter such as a coronary artery. Another aspect of the invention involves applicators for use with the stents of the invention.Type: GrantFiled: August 12, 1998Date of Patent: October 8, 2002Assignee: Cardica, Inc.Inventors: Stephen A. Yencho, Bernard A. Hausen
-
Patent number: 6428550Abstract: An anastomosis device is a one piece device for connecting a graft vessel to a target vessel without the use of conventional sutures. The anastomosis device includes an expandable tube configured to have a graft vessel secured to the tube. The device has an expandable linkage positioned at one end of the device and expansion of this linkage causes a first radially extending flange to fold outward. This first flange abuts an interior wall of a target vessel and a second flange is formed which abuts an exterior wall of the target vessel trapping the target vessel between the two flanges and secures the end of the graft vessel into an opening in the wall of the target vessel. The device greatly increases the speed with which anastomosis can be performed over known suturing methods and allows anastomosis to be performed in tight spaces.Type: GrantFiled: May 18, 1999Date of Patent: August 6, 2002Assignee: Cardica, Inc.Inventors: Jaime Vargas, Stephen A. Yencho, Jamey Nielsen, Michael Hendricksen, Bernard A. Hausen
-
Patent number: 6419681Abstract: A medical device which can be implanted at a target site in a living body. The device includes an inner flange formed by radial expansion of the device and an outer flange formed by axial compression of the device. The device can include an implant portion and a discard portion which separate from each other during formation of the outer flange. The separation can occur by fracturing a frangible linkage or by mechanically separating a portion of the outer flange from a deployment tool. The device can be a one piece anastomosis device for connecting a graft vessel to a target vessel without the use of conventional sutures. The inner and outer flanges capture the edges of an opening in a target vessel and secure the graft vessel to the opening in the target vessel. The device greatly increases the speed with which anastomosis can be performed over known suturing methods.Type: GrantFiled: November 15, 1999Date of Patent: July 16, 2002Assignee: Cardica, Inc.Inventors: Jaime Vargas, James T. Nielsen, Michael Hendricksen, Brendan M. Donohoe, Stephen Yencho, Bernard Hausen
-
Publication number: 20020077637Abstract: A trocar useful for forming an incision in a target vessel for placement of an anastomosis device which may have an inner flange formed by radial expansion of the device and an outer flange formed by axial compression of the device. The trocar can have a smaller size during formation of the incision and a larger size when retracted over a deployment tool used to deploy the anastomosis device.Type: ApplicationFiled: November 21, 2001Publication date: June 20, 2002Inventors: Jaime Vargas, Brendan M. Donohoe, Scott C. Anderson, Theodore Bender, Stephen Yencho, Bernard Hausen, Michael Hendricksen
-
Patent number: 6402764Abstract: An everter and threadthrough system useful for attaching a graft vessel to a anastomosis device which can be used to attach a graft vessel to a target vessel without the use of conventional sutures. The threadthrough system engages an end of the graft vessel and pulls the graft vessel through a deployment tool until a portion of the graft vessel extends beyond a distal end of the anastomosis device mounted on the deployment tool. The everter includes a spreading mechanism which expands the end of the graft vessel and folds the expanded end over the anastomosis device. In the case where the anastomosis device includes barbs, the everter can effect penetration of the graft vessel by the barbs. Once the graft vessel is everted over the anastomosis device, the deployment tool can be used to attach the graft vessel to a target vessel.Type: GrantFiled: November 15, 1999Date of Patent: June 11, 2002Assignee: Cardica, Inc.Inventors: Michael Hendricksen, Theodore Bender, Brendan M. Donohoe, Jaime Vargas, Andrew Frazier, Stephen Yencho, Bernard Hausen
-
Patent number: 6398797Abstract: A method and system for performing anastomosis uses an anvil to control and support a tissue site during an anastomosis procedure involving tissue bonding techniques such as tissue welding and adhesive tissue bonding. The anvil is particularly useful for supporting a wall of a coronary artery during attachment of a graft vessel in a coronary artery bypass graft procedure. The anvil is inserted into a pressurized or unpressurized target vessel and is pulled against an inner wall of the target vessel causing tenting of the thin tissue of the vessel wall. A graft vessel is then advanced to the anastomosis site and an end of the graft vessel is positioned adjacent an exterior of the target vessel. When tissue welding is used, a graft vessel fixture is positioned over the tissue surfaces to be welded in order to clamp the graft and target vessel tissue together. The tissue contacting surfaces of the anvil and/or graft vessel fixture are provided with one or more energy applying surfaces.Type: GrantFiled: November 29, 2000Date of Patent: June 4, 2002Assignee: Cardica, Inc.Inventors: David Bombard, Theodore Bender, Tenny Chang, Jaime Vargas, Michael Hendricksen, Stephen A. Yencho, Jamey Nielsen, Bernard A. Hausen, Brendan Donohoe
-
Patent number: 6391038Abstract: An anastomosis system and method uses an anvil to control and support a tissue site during an anastomosis procedure. The anvil is particularly useful for supporting a wall of a coronary artery during attachment of a graft vessel to the coronary artery because the wall of the coronary artery is very thin, difficult to grasp, and susceptible to tearing. In one method, the anvil is inserted into a pressurized or unpressurized target vessel and is pulled against an inner wall of the target vessel causing tenting of the thin tissue of the vessel wall. A graft vessel is then advanced to the anastomosis site and an end of the graft vessel is positioned adjacent and exterior of the target vessel. Staples are inserted through the tissue of the graft vessel and the target vessel by pivoting the arms of a staple holder towards the anvil. When the ends of the staples engage staple bending features on the anvil, the ends of the staples bend over securing the graft vessel and target vessel together.Type: GrantFiled: July 28, 1999Date of Patent: May 21, 2002Assignee: Cardica, Inc.Inventors: Jaime Vargas, Michael Hendricksen, Stephen A. Yencho, Jamey Nielsen, Bernard A. Hausen, Brendan Donohoe
-
Patent number: 6371964Abstract: A trocar useful for forming an incision in a target vessel for placement of an anastomosis device which may have an inner flange formed by radial expansion of the device and an outer flange formed by axial compression of the device. The trocar can have a smaller size during formation of the incision and a larger size when retracted over a deployment tool used to deploy the anastomosis device.Type: GrantFiled: November 15, 1999Date of Patent: April 16, 2002Assignee: Vascular Innovations, Inc.Inventors: Jaime Vargas, Brendan M. Donohoe, Scott C. Anderson, Theodore Bender, Stephen Yencho, Bernard Hausen, Michael Hendricksen
-
Publication number: 20020042622Abstract: A medical device which can be implanted at a target site in a living body. The device includes an inner flange formed by radial expansion of the device and an outer flange formed by axial compression of the device. The device can include an implant portion and a discard portion which separate from each other during formation of the outer flange. The separation can occur by fracturing a frangible linkage or by mechanically separating a portion of the outer flange from a deployment tool. The device can be a one piece anastomosis device for connecting a graft vessel to a target vessel without the use of conventional sutures. The inner and outer flanges capture the edges of an opening in a target vessel and secure the graft vessel to the opening in the target vessel. The device greatly increases the speed with which anastomosis can be performed over known suturing methods.Type: ApplicationFiled: December 6, 2001Publication date: April 11, 2002Inventors: Jaime Vargas, James T. Nielsen, Michael Hendricksen, Brendan M. Donohoe, Stephen Yencho, Bernard Hausen
-
Publication number: 20020026137Abstract: Anastomotic stents for connecting a graft vessel to a target vessel, and methods of use thereof. The anastomotic stents of the invention are suitable for use in a variety of anastomosis procedures, including coronary artery bypass grafting. One embodiment of the invention comprises a large vessel anastomotic stent for use with large diameter target vessels such as the aorta or its major side branches. Another embodiment of the invention comprises a small vessel anastomotic stent for use on a target vessel which has a small diameter such as a coronary artery. Another- aspect of the invention involves applicators for use with the stents of the invention.Type: ApplicationFiled: August 9, 2001Publication date: February 28, 2002Inventors: Stephen A. Yencho, Bernard A. Hausen
-
Publication number: 20020007189Abstract: Anastomotic stents for connecting a graft vessel to a target vessel, and methods of use thereof. The anastomotic stents of the invention are suitable for use in a variety of anastomosis procedures, including coronary artery bypass grafting. One embodiment of the invention comprises a large vessel anastomotic stent for use with large diameter target vessels such as the aorta or its major side branches. Another embodiment of the invention comprises a small vessel anastomotic stent for use on a target vessel which has a small diameter such as a coronary artery. Another aspect of the invention involves applicators for use with the stents of the invention.Type: ApplicationFiled: February 7, 2001Publication date: January 17, 2002Inventors: Stephen A. Yencho, Bernard A. Hausen
-
Publication number: 20010037139Abstract: Anastomotic stents for connecting a graft vessel to a target vessel, and methods of use thereof. The anastomotic stents of the invention are suitable for use in a variety of anastomosis procedures, including coronary artery bypass grafting. One embodiment of the invention comprises a large vessel anastomotic stent for use with large diameter target vessels such as the aorta or its major side branches. Another embodiment of the invention comprises a small vessel anastomotic stent for use on a target vessel which has a small diameter such as a coronary artery. Another aspect of the invention involves applicators for use with the stents of the invention.Type: ApplicationFiled: June 18, 2001Publication date: November 1, 2001Inventors: Stephen A. Yencho, Bernard A. Hausen
-
Publication number: 20010023353Abstract: An anastomosis system and method uses an anvil to control and support a tissue site during an anastomosis procedure. The anvil is particularly useful for supporting a wall of a coronary artery during attachment of a graft vessel to the coronary artery because the wall of the coronary artery is very thin, difficult to grasp, and susceptible to tearing. In one method, the anvil is inserted into a pressurized or unpressurized target vessel and is pulled against an inner wall of the target vessel causing tenting of the thin tissue of the vessel wall. A graft vessel is then advanced to the anastomosis site and an end of the graft vessel is positioned adjacent and exterior of the target vessel. Staples are inserted through the tissue of the graft vessel and the target vessel by pivoting the arms of a staple holder towards the anvil. When the ends of the staples engage staple bending features on the anvil, the ends of the staples bend over securing the graft vessel and target vessel together.Type: ApplicationFiled: July 28, 1999Publication date: September 20, 2001Inventors: JAIME VARGAS, MICHAEL HENDRICKSEN, STEPHEN YENCHO, JAMEY NIELSEN, BERNARD A. HAUSEN, BRENDAN DONOHOE
-
Publication number: 20010021857Abstract: An anastomosis system and method uses an anvil to control and support a tissue site during an anastomosis procedure. The anvil is particularly useful for supporting a wall of a coronary artery during attachment of a graft vessel to the coronary artery because the wall of the coronary artery is very thin, difficult to grasp, and susceptible to tearing. In one method, the anvil is inserted into a pressurized or unpressurized target vessel and is pulled against an inner wall of the target vessel causing tenting of the thin tissue of the vessel wall. A graft vessel is then advanced to the anastomosis site and an end of the graft vessel is positioned adjacent and exterior of the target vessel. Staples are inserted through the tissue of the graft vessel and the target vessel by pivoting the arms of a staple holder towards the anvil. When the ends of the staples engage staple bending features on the anvil, the ends of the staples bend over securing the graft vessel and target vessel together.Type: ApplicationFiled: April 27, 2001Publication date: September 13, 2001Inventors: Jaime Vargas, Michael Hendricksen, Stephen A. Yencho, Jamey Nielsen, Bernard A. Hausen, Brendan Donohoe
-
Publication number: 20010007069Abstract: A method and system for performing anastomosis uses an anvil to control and support a tissue site during an anastomosis procedure involving tissue bonding techniques such as tissue welding and adhesive tissue bonding. The anvil is particularly useful for supporting a wall of a coronary artery during attachment of a graft vessel in a coronary artery bypass graft procedure. The anvil is inserted into a pressurized or unpressurized target vessel and is pulled against an inner wall of the target vessel causing tenting of the thin tissue of the vessel wall. A graft vessel is then advanced to the anastomosis site and an end of the graft vessel is positioned adjacent an exterior of the target vessel. When tissue welding is used, a graft vessel fixture is positioned over the tissue surfaces to be welded in order to clamp the graft and target vessel tissue together. The tissue contacting surfaces of the anvil and/or graft vessel fixture are provided with one or more energy applying surfaces.Type: ApplicationFiled: November 29, 2000Publication date: July 5, 2001Inventors: David Bombard, Theodore Bender, Tenny Chang, Jaime Vargas, Michael Hendricksen, Stephen A. Yencho, Jamey Nielsen, Bernard A. Hausen, Brendan Donohoe
-
Patent number: 6206913Abstract: Anastomotic stents for connecting a graft vessel to a target vessel, and methods of use thereof. The anastomotic stents of the invention are suitable for use in a variety of anastomosis procedures, including coronary artery bypass grafting. One embodiment of the invention comprises a large vessel anastomotic stent for use with large diameter target vessels such as the aorta or its major side branches. Another embodiment of the invention comprises a small vessel anastomotic stent for use on a target vessel which has a small diameter such as a coronary artery. Another aspect of the invention involves applicators for use with the stents of the invention.Type: GrantFiled: August 12, 1998Date of Patent: March 27, 2001Assignee: Vascular Innovations, Inc.Inventors: Stephen A. Yencho, Bernard A. Hausen
-
Patent number: 6179849Abstract: The anastomosis device according to the present invention is a one piece device for connecting a graft vessel to a target vessel without the use of conventional sutures. The anastomosis device includes a frame for receiving and holding the end of a graft vessel in an everted position and first and second spreading members configured to be inserted into an opening in the target vessel. The first and second spreading members are arranged substantially in a plane for insertion into an opening in a target vessel, and are moved away from one another to capture the edges of the opening in the target vessel securing the graft vessel to the target vessel. One version of the anastomosis device includes a plurality of linkages arranged in two rows for grasping opposite sides of an opening in the target vessel. A portion of the linkages fold outward to trap vessel walls on opposite sides of the opening in the target vessel.Type: GrantFiled: June 10, 1999Date of Patent: January 30, 2001Assignee: Vascular Innovations, Inc.Inventors: Stephen A. Yencho, Michael Hendricksen, Jaime Vargas, Jamey Nielsen, Bernard A. Hausen, Scott Vance