Patents by Inventor Jonathan D. Root
Jonathan D. Root 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: 7326226Abstract: An ablation catheter system for capturing and removing necrotic tissue and thrombi generated during an ablative procedure is disclosed. The catheter typically includes an elongate member, a filtration assembly disposed within the distal region, and an ablation instrument at the distal end. Alternatively, the ablation instrument is carried on the distal end of an ablation catheter, which is disposed within a lumen of the catheter system. The catheter may further include an aspiration port and lumen. Methods of using the devices in preventing distal embolization during ablative procedures are disclosed.Type: GrantFiled: November 3, 2003Date of Patent: February 5, 2008Assignee: Boston Scientific Scimed, Inc.Inventors: Jonathan D. Root, Kevin Hahnen, Tracy D. Maahs
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Patent number: 7306575Abstract: A balloon arterial cannula and methods for filtering blood. The devices generally include a mesh for filtering blood flowing within a blood vessel, particularly within an artery such as the aorta, a structure adapted to open and close the mesh within the blood vessel, a means to actuate the structure, and a balloon occluder which typically includes a flexible material enclosing a chamber. The methods generally include the steps of introducing a mesh into a blood vessel to capture embolic material, adjusting the mesh, if necessary, during the course of filtration, inflating the balloon occluder to occlude the vessel upstream of the mesh, and thereafter deflating the balloon occluder and removing the mesh and the captured foreign matter from the blood vessel. Additionally, visualization techniques are used to ensure effective filtration.Type: GrantFiled: July 14, 2003Date of Patent: December 11, 2007Assignee: Edwards Lifesciences CorporationInventors: Denise Barbut, Jonathan D. Root, Giovanni Pastrone, Tracy D. Maahs, Ross S. Tsugita
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Publication number: 20040158276Abstract: A balloon arterial cannula and methods for filtering blood. The devices generally include a mesh for filtering blood flowing within a blood vessel, particularly within an artery such as the aorta, a structure adapted to open and close the mesh within the blood vessel, a means to actuate the structure, and a balloon occluder which typically includes a flexible material enclosing a chamber. The methods generally include the steps of introducing a mesh into a blood vessel to capture embolic material, adjusting the mesh, if necessary, during the course of filtration, inflating the balloon occluder to occlude the vessel upstream of the mesh, and thereafter deflating the balloon occluder and removing the mesh and the captured foreign matter from the blood vessel. Additionally, visualization techniques are used to ensure effective filtration.Type: ApplicationFiled: July 14, 2003Publication date: August 12, 2004Applicant: Edwards Lifesciences, Inc., Irvine, CAInventors: Denise Barbut, Jonathan D. Root, Giovanni Pastrone, Tracy D. Maahs, Ross S. Tsugita
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Publication number: 20040093016Abstract: An ablation catheter system for capturing and removing necrotic tissue and thrombi generated during an ablative procedure is disclosed. The catheter typically includes an elongate member, a filtration assembly disposed within the distal region, and an ablation instrument at the distal end. Alternatively, the ablation instrument is carried on the distal end of an ablation catheter, which is disposed within a lumen of the catheter system. The catheter may further include an aspiration port and lumen. Methods of using the devices in preventing distal embolization during ablative procedures are disclosed.Type: ApplicationFiled: November 3, 2003Publication date: May 13, 2004Applicant: SCIMED LIFE SYSTEMS, INC.Inventors: Jonathan D. Root, Kevin Hahnen, Tracy D. Maahs
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Patent number: 6689084Abstract: A method for carotid endarterectomy. A blood filter is positioned within a carotid artery downstream of an atheromatous plaque. The filter is expanded. The carotid artery is clamped upstream and downstream of the atheromatous plaque while the filter is expanded. An endarterectomy procedure is performed on the region of the carotid artery having the atheromatous plaque. The carotid artery is unclamped while the filter is expanded. In certain cases a shunt is positioned in a region of the carotid artery having the atheromatous plaque and secured to the shunt by clamping, the shunt comprising a tubular member having a proximal opening, a distal opening, and a lumen therebetween.Type: GrantFiled: February 12, 2003Date of Patent: February 10, 2004Assignee: Edwards Lifescience CorporationInventors: Alan L. Kaganov, Jonathan D. Root, John McKenzie
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Patent number: 6682543Abstract: A method for removing plaque from the aorta is disclosed. A filter is introduced into a region of interest within the patient's aorta. The filter is deployed downstream of a mobile aortic plaque within the aorta. An atherectomy assembly is operated to excise the plaque from the aorta. Emboli are captured by the filter. The filter and plaque are removed from the region of interest.Type: GrantFiled: October 24, 2001Date of Patent: January 27, 2004Assignee: C Edwards Lifesciences CorporationInventors: Denise R. Barbut, Jonathan D. Root, Giovanni Pastrone
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Patent number: 6673090Abstract: An ablation catheter system for capturing and removing necrotic tissue and thrombi generated during an ablative procedure is disclosed. The catheter typically includes an elongate member, a filtration assembly disposed within the distal region, and an ablation instrument at the distal end. Alternatively, the ablation instrument is carried on the distal end of an ablation catheter, which is disposed within a lumen of the catheter system. The catheter may further include an aspiration port and lumen. Methods of using the devices in preventing distal embolization during ablative procedures are disclosed.Type: GrantFiled: January 22, 2001Date of Patent: January 6, 2004Assignee: SciMed Life Systems, Inc.Inventors: Jonathan D. Root, Kevin Hahnen, Tracy D. Maahs
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Patent number: 6592546Abstract: A balloon arterial cannula and methods for filtering blood. The devices generally include a mesh for filtering blood flowing within a blood vessel, particularly within an artery such as the aorta, a structure adapted to open and close the mesh within the blood vessel, a means to actuate the structure, and a balloon occluder which typically includes a flexible material enclosing a chamber. The methods generally include the steps of introducing a mesh into a blood vessel to capture embolic material, adjusting the mesh, if necessary, during the course of filtration, inflating the balloon occluder to occlude the vessel upstream of the mesh, and thereafter deflating the balloon occluder and removing the mesh and the captured foreign matter from the blood vessel. Additionally, visualization techniques are used to ensure effective filtration.Type: GrantFiled: January 30, 1998Date of Patent: July 15, 2003Assignee: Edwards Lifesciences Corp.Inventors: Denise Barbut, Jonathan D. Root, Giovanni Pastrone, Tracy D. Maahs, Ross S. Tsugita
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Publication number: 20030120304Abstract: A method for carotid endarterectomy. A blood filter is positioned within a carotid artery downstream of an atheromatous plaque. The filter is expanded. The carotid artery is clamped upstream and downstream of the atheromatous plaque while the filter is expanded. An endarterectomy procedure is performed on the region of the carotid artery having the atheromatous plaque. The carotid artery is unclamped while the filter is expanded. In certain cases a shunt is positioned in a region of the carotid artery having the atheromatous plaque and secured to the shunt by clamping, the shunt comprising a tubular member having a proximal opening, a distal opening, and a lumen therebetween.Type: ApplicationFiled: February 12, 2003Publication date: June 26, 2003Applicant: EMBOL-X, Inc.Inventors: Alan L. Kaganov, Jonathan D. Root, John McKenzie
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Patent number: 6551268Abstract: A shunt and method of use for maintaining distal blood flow during an arteriotomy procedure is disclosed. The shunt includes a first tubular member having a proximal end, a distal end, and a lumen therebetween. The proximal end has an opening in communication with the lumen, and the proximal opening is adapted to receive blood from a first region of an artery. The distal end has an opening in communication with the lumen, and the distal opening is adapted to release blood into a second region of the artery. The shunt includes a second tubular member having a proximal end, a distal end, and a lumen therebetween which either merges and communicates at its distal end with the lumen of the first tubular member, or rides separate and parallel to it.Type: GrantFiled: April 14, 2000Date of Patent: April 22, 2003Assignee: Embol-X, Inc.Inventors: Alan L. Kaganov, Jonathan D. Root, John McKenzie
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Publication number: 20020123761Abstract: A method for removing plaque from the aorta is disclosed. A filter is introduced into a region of interest within the patient's aorta. The filter is deployed downstream of a mobile aortic plaque within the aorta. An atherectomy assembly is operated to excise the plaque from the aorta. Emboli are captured by the filter. The filter and plaque are removed from the region of interest.Type: ApplicationFiled: October 24, 2001Publication date: September 5, 2002Applicant: Scimed Life Systems, Inc.Inventors: Denise R. Barbut, Jonathan D. Root, Giovanni Pastrone
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Patent number: 6309399Abstract: An arterial catheter system for removing plaque from the aorta and other arteries is disclosed. The system typically includes an elongate catheter member, a filtration apparatus disposed within the distal region, and an atherectomy assembly which includes a mechanism for trapping and holding mobile or fixed plaque and an excising mechanism for removing the plaque. In use, the catheter is positioned so that the atherectomy assembly lies within a region of interest, the filtration apparatus is deployed downstream of the region of interest, the plaque is trapped and held by a snare, vacuum, or other trapping means, and then the excising mechanism is activated to remove the plaque. Methods are also disclosed for removing plaque from the aorta and other arteries.Type: GrantFiled: September 7, 2000Date of Patent: October 30, 2001Assignee: SciMed Life Systems, Inc.Inventors: Denise R. Barbut, Jonathan D. Root, Giovanni Pastrone
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Publication number: 20010005789Abstract: An ablation catheter system for capturing and removing necrotic tissue and thrombi generated during an ablative procedure is disclosed. The catheter typically includes an elongate member, a filtration assembly disposed within the distal region, and an ablation instrument at the distal end. Alternatively, the ablation instrument is carried on the distal end of an ablation catheter, which is disposed within a lumen of the catheter system. The catheter may further include an aspiration port and lumen. Methods of using the devices in preventing distal embolization during ablative procedures are disclosed.Type: ApplicationFiled: January 22, 2001Publication date: June 28, 2001Applicant: EMBOL-X, INC.Inventors: Jonathan D. Root, Kevin Hahnen, Tracy D. Maahs
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Patent number: 6235044Abstract: An ablation catheter system for capturing and removing necrotic tissue and thrombi generated during an ablative procedure is disclosed. The catheter typically includes an elongate member, a filtration assembly disposed within the distal region, and an ablation instrument at the distal end. Alternatively, the ablation instrument is carried on the distal end of an ablation catheter, which is disposed within a lumen of the catheter system. The catheter may further include an aspiration port and lumen. Methods of using the devices in preventing distal embolization during ablative procedures are disclosed.Type: GrantFiled: August 4, 1999Date of Patent: May 22, 2001Assignee: Scimed Life Systems, Inc.Inventors: Jonathan D. Root, Kevin Hahnen, Tracy D. Maahs
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Patent number: 6179851Abstract: An arterial catheter system for removing plaque from the aorta and other arteries is disclosed. The system typically includes an elongate catheter member, a filtration apparatus disposed within the distal region, and an atherectomy assembly which includes a mechanism for trapping and holding mobile or fixed plaque and an excising mechanism for removing the plaque. In use, the catheter is positioned so that the atherectomy assembly lies within a region of interest, the filtration apparatus is deployed downstream of the region of interest, the plaque is trapped and held by a snare, vacuum, or other trapping device, and then the excising mechanism is activated to remove the plaque. Methods are also disclosed for removing plaque from the aorta and other arteries.Type: GrantFiled: June 15, 1999Date of Patent: January 30, 2001Assignee: SciMed Life Systems, Inc.Inventors: Denise R. Barbut, Jonathan D. Root, Giovanni Pastrone
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Patent number: 6136016Abstract: Devices and methods for filtering blood. The devices generally comprise: a mesh for filtering blood flowing within a blood vessel, particularly within an artery such as the aorta; a structure adapted to open and close the mesh within the blood vessel; and a means to actuate the structure. The methods generally include the following steps: introducing a mesh into a blood vessel to entrap embolic material; adjusting the mesh, if necessary, during the course of filtration; and removing the mesh and the entrapped foreign matter from the blood vessel. Additionally, visualization techniques are used to ensure effective filtration.Type: GrantFiled: July 12, 1999Date of Patent: October 24, 2000Assignee: Embol-X, Inc.Inventors: Denise Barbut, Jonathan D. Root
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Patent number: 6117154Abstract: Devices and methods for filtering blood. The devices generally comprise: a mesh for filtering blood flowing within a blood vessel, particularly within an artery such as the aorta; a structure adapted to open and close the mesh within the blood vessel; and a means to actuate the structure. The methods generally include the following steps: introducing a mesh into a blood vessel to entrap embolic material; adjusting the mesh, if necessary, during the course of filtration; and removing the mesh and the entrapped foreign matter from the blood vessel. Additionally, visualization techniques are used to ensure effective filtration.Type: GrantFiled: June 17, 1999Date of Patent: September 12, 2000Assignee: Embol-X, Inc.Inventors: Denise Barbut, Jonathan D. Root
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Patent number: 6074357Abstract: A shunt and method of use for maintaining distal blood flow during an arteriotomy procedure is disclosed. The shunt includes a first tubular member having a proximal end, a distal end, and a lumen therebetween. The proximal end has an opening in communication with the lumen, and the proximal opening is adapted to receive blood from a first region of an artery. The distal end has an opening in communication with the lumen, and the distal opening is adapted to release blood into a second region of the artery. The shunt includes a second tubular member having a proximal end, a distal end, and a lumen therebetween which either merges and communicates at its distal end with the lumen of the first tubular member, or rides separate and parallel to it.Type: GrantFiled: October 21, 1998Date of Patent: June 13, 2000Assignee: Embol-X, Inc.Inventors: Alan L. Kaganov, Jonathan D. Root, John McKenzie
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Patent number: 6010522Abstract: An arterial catheter system for removing plaque from the aorta and other arteries is disclosed. The system typically includes an elongate catheter member, a filtration apparatus disposed within the distal region, and an atherectomy assembly which includes a mechanism for trapping and holding mobile or fixed plaque and an excising mechanism for removing the plaque. In use, the catheter is positioned so that the atherectomy assembly lies within a region of interest, the filtration apparatus is deployed downstream of the region of interest, the plaque is trapped and held by a snare, vacuum, or other trapping means, and then the excising mechanism is activated to remove the plaque. Methods are also disclosed for removing plaque from the aorta and other arteries.Type: GrantFiled: July 24, 1996Date of Patent: January 4, 2000Assignee: Embol-X, Inc.Inventors: Denise Barbut, Jonathan D Root, Robert Rizzari, James M Sellers, Giovanni Pastrone, John McKenzie
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Patent number: 5997557Abstract: An arterial catheter system for removing plaque from the aorta and other arteries is disclosed. The system typically includes an elongate catheter member, a filtration apparatus disposed within the distal region, and an atherectomy assembly which includes a mechanism for trapping and holding mobile or fixed plaque and an excising mechanism for removing the plaque. In use, the catheter is positioned so that the atherectomy assembly lies within a region of interest, the filtration apparatus is deployed downstream of the region of interest, the plaque is trapped and held by a snare, vacuum, or other trapping means, and then the excising mechanism is activated to remove the plaque. Methods are also disclosed for removing plaque from the aorta and other arteries.Type: GrantFiled: February 11, 1998Date of Patent: December 7, 1999Assignee: Embol-X, Inc.Inventors: Denise Barbut, Jonathan D. Root, Robert Rizzari, James M. Sellers, Giovanni Pastrone, John McKenzie