Patents by Inventor Robert C. Dutcher
Robert C. Dutcher 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: 6945951Abstract: Cross stream thrombectomy catheter and system for fragmentation and removal of thrombus or other material from blood vessels or other body cavities. High velocity saline jets emitted from a toroidal loop jet emanator or other jet emanator in a catheter distal end entrain fluid through inflow orifices, and with flow resistances create a back-pressure which drives cross stream streams through outflow orifices in a radial direction and thence radially and circumferentially to apply normal and drag forces on thrombotic deposits or lesions in the blood vessel or other body cavity, thereby breaking apart and transporting thrombus particles to be entrained through the inflow orifices, whereupon the high velocity jets macerate the thrombus particles which then transit an exhaust lumen or recirculate again via the outflow orifices.Type: GrantFiled: August 16, 2001Date of Patent: September 20, 2005Assignee: Possis Medical, Inc.Inventors: Michael J. Bonnette, John Edward Morris, Steven E. Wiesel, John B. Bridgeman, Debra M. Kozak, Rosemary C. Beaupre, Mark L. Jenson, Cindy M. Setum, Robert C. Dutcher
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Patent number: 6805684Abstract: Cross stream thrombectomy catheter and system for fragmentation and removal of thrombus or other material from blood vessels or other body cavities. High velocity saline jets emitted from a toroidal loop jet emanator or other jet emanator in a catheter distal end entrain fluid through inflow orifices, and with flow resistances create a back-pressure which drives cross stream streams through outflow orifices in a radial direction and thence radially and circumferentially to apply normal and drag forces on thrombotic deposits or lesions in the blood vessel or other body cavity, thereby breaking apart and transporting thrombus particles to be entrained through the inflow orifices, whereupon the high velocity jets macerate the thrombus particles which then transit an exhaust lumen or recirculate again via the outflow orifices.Type: GrantFiled: August 16, 2001Date of Patent: October 19, 2004Assignee: Possis Medical, Inc.Inventors: Michael J. Bonnette, John Edward Morris, Steven E. Wiesel, John B. Bridgeman, Debra M. Kozak, Rosemary C. Beaupre, Mark L. Jenson, Cindy M. Setum, Robert C. Dutcher
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Patent number: 6764483Abstract: Cross stream thrombectomy catheter and system for fragmentation and removal of thrombus or other material from blood vessels or other body cavities. High velocity saline jets emitted from a toroidal loop jet emanator or other jet emanator in a catheter distal end entrain fluid through inflow orifices, and with flow resistances create a back-pressure which drives cross stream streams through outflow orifices in a radial direction and thence radially and circumferentially to apply normal and drag forces on thrombotic deposits or lesions in the blood vessel or other body cavity, thereby breaking apart and transporting thrombus particles to be entrained through the inflow orifices, whereupon the high velocity jets macerate the thrombus particles which then transit an exhaust lumen or recirculate again via the outflow orifices.Type: GrantFiled: July 26, 2001Date of Patent: July 20, 2004Assignee: Possis Medical, Inc.Inventors: Michael J. Bonnette, John Edward Morris, Steven E. Wiesel, John B. Bridgeman, Debra M. Kozak, Rosemary C. Beaupre, Mark L. Jenson, Cindy M. Setum, Robert C. Dutcher
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Patent number: 6719718Abstract: Cross stream thrombectomy catheter and system for fragmentation and removal of thrombus or other material from blood vessels or other body cavities. High velocity saline jets emitted from a toroidal loop jet emanator or other jet emanator in a catheter distal end entrain fluid through inflow orifices, and with flow resistances create a back-pressure which drives cross stream streams through outflow orifices in a radial direction and thence radially and circumferentially to apply normal and drag forces on thrombotic deposits or lesions in the blood vessel or other body cavity, thereby breaking apart and transporting thrombus particles to be entrained through the inflow orifices, whereupon the high velocity jets macerate the thrombus particles which then transit an exhaust lumen or recirculate again via the outflow orifices.Type: GrantFiled: August 16, 2001Date of Patent: April 13, 2004Assignee: Possis Medical, Inc.Inventors: Michael J. Bonnette, John Edward Morris, Steven E. Wiesel, John B. Bridgeman, Debra M. Kozak, Rosemary C. Beaupre, Mark L. Jenson, Cindy M. Setum, Robert C. Dutcher
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Patent number: 6676627Abstract: Cross stream thrombectomy catheter and system for fragmentation and removal of thrombus or other material from blood vessels or other body cavities. High velocity saline jets emitted from a toroidal loop jet emanator or other jet emanator in a catheter distal end entrain fluid through inflow orifices, and with flow resistances create a back-pressure which drives cross stream streams through outflow orifices in a radial direction and thence radially and circumferentially to apply normal and drag forces on thrombotic deposits or lesions in the blood vessel or other body cavity, thereby breaking apart and transporting thrombus particles to be entrained through the inflow orifices, whereupon the high velocity jets macerate the thrombus particles which then transit an exhaust lumen or recirculate again via the outflow orifices.Type: GrantFiled: October 13, 1999Date of Patent: January 13, 2004Assignee: Possis Medical, Inc.Inventors: Michael J. Bonnette, John Edward Morris, Steven E. Wiesel, John B. Bridgeman, Debra M. Kozak, Rosemary C. Beaupre, Mark L. Jenson, Cindy M. Setum, Robert C. Dutcher
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Publication number: 20010051811Abstract: Crossflow thrombectomy catheter and system for fragmentation and removal of thrombus or other material from blood vessels or other body cavities. High velocity saline jets emitted from a toroidal loop jet emanator or other jet emanator in a catheter distal end entrain fluid through inflow orifices, and with flow resistances create a back-pressure which drives crossflow streams through outflow orifices in a radial direction and thence radially and circumferentially to apply normal and drag forces on thrombotic deposits or lesions in the blood vessel or other body cavity, thereby breaking apart and transporting thrombus particles to be entrained through the inflow orifices, whereupon the high velocity jets macerate the thrombus particles which then transit an exhaust lumen or recirculate again via the outflow orifices.Type: ApplicationFiled: August 16, 2001Publication date: December 13, 2001Applicant: Possis Medical, Inc.Inventors: Michael J. Bonnette, John Edward Morris, Steven E. Wiesel, John B. Bridgeman, Debra M. Kozak, Rosemary C. Beaupre, Mark L. Jenson, Cindy M. Setum, Robert C. Dutcher
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Publication number: 20010051785Abstract: Crossflow thrombectomy catheter and system for fragmentation and removal of thrombus or other material from blood vessels or other body cavities. High velocity saline jets emitted from a toroidal loop jet emanator or other jet emanator in a catheter distal end entrain fluid through inflow orifices, and with flow resistances create a back-pressure which drives crossflow streams through outflow orifices in a radial direction and thence radially and circumferentially to apply normal and drag forces on thrombotic deposits or lesions in the blood vessel or other body cavity, thereby breaking apart and transporting thrombus particles to be entrained through the inflow orifices, whereupon the high velocity jets macerate the thrombus particles which then transit an exhaust lumen or recirculate again via the outflow orifices.Type: ApplicationFiled: August 16, 2001Publication date: December 13, 2001Applicant: Possis Medical, Inc.Inventors: Michael J. Bonnette, John Edward Morris, Steven E. Wiesel, John B. Bridgeman, Debra M. Kozak, Rosemary C. Beaupre, Mark L. Jenson, Cindy M. Setum, Robert C. Dutcher
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Patent number: 5989271Abstract: A rheolytic thrombectomy catheter and method of using same to remove thrombus from a body vessel or other body cavity. The rheolytic thrombectomy catheter has a first tube with a distal open end and a second tube aligned within the first tube and having a flexible tip assembly. A tapered and flexible tip follows a guidewire within and along tortuous and difficult vasculature paths to the site of thrombus. The flexible tip assembly, includes a soft flexible tip and also includes a hard plastic shell offering structural integrity and rigid alignment between a toroidal loop and an inner body to prevent lever arm distortion and to maintain spray gap alignment for saline jet flow emanating from the toroidal loop. Saline jets dislodge, entrain, and break thrombus into pieces which are evacuated through the dual lumen tube.Type: GrantFiled: November 9, 1998Date of Patent: November 23, 1999Assignee: Possis Medical, Inc.Inventors: Michael J. Bonnette, John Edward Morris, Steven E. Wiesel, Cindy M. Setum, Robert C. Dutcher, William J. Drasler