Patents by Inventor Ross S. Tsugita
Ross S. Tsugita 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: 8444665Abstract: A filter flush system for temporary placement of a filter in an artery or vein is disclosed. The system typically includes a guidewire insertable within a guiding catheter, which has an occlusion balloon disposed about its distal end. The guidewire has an expandable filter, which can be collapsed to pass through a lumen and distal port of the guiding catheter. The lumen is adapted to receive a variety of endovascular devices, including angioplasty, atherectomy, and stenting catheters. Fluid medium or blood can be infused through the lumen of the guiding catheter to flush embolic material or mobile plaque generated during the endovascular procedures toward the expanded filter deployed downstream from the region of interest. Methods of using the filter flush system to entrap and remove embolic material from the vessel are also disclosed.Type: GrantFiled: July 17, 2003Date of Patent: May 21, 2013Assignee: Boston Scientific Scimed, Inc.Inventor: Ross S. Tsugita
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Patent number: 8231651Abstract: A guided filter system for temporary placement of a filter in an artery or vein is disclosed. The system includes a guidewire slideable through a wire guide included in a distal region of a support wire. The support wire has an expandable filter, which is operable between a collapsed or enlarged condition. A variety of endovascular devices, including angioplasty, atherectomy, and stent-deployment catheters, are insertable over the guidewire and/or the support wire. Methods of using the guided filter system to direct and exchange endovascular devices to a region of interest, and to entrap and remove embolic material from the vessel are also disclosed.Type: GrantFiled: November 23, 2010Date of Patent: July 31, 2012Assignee: Boston Scientific Scimed, Inc.Inventor: Ross S. Tsugita
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Patent number: 8211121Abstract: A method for occluding an anatomical structure (such as a vessel or duct) having a lumen comprises: introducing percutaneously into the body of the patient a delivery device; advancing the delivery device through an extraluminal space within the patient's body to an occlusion site outside the lumen of an anatomical structure; deploying a pair of longitudinally-extending clamping jaws from the delivery device; and occluding the anatomical structure with the clamping jaws. The advance of the delivery device and the deployment of the clamping jaws is guided by near-real-time imaging of a target region of a body of a patient, the target region including the occlusion site on the anatomical structure. The delivery device is guided to the occlusion site outside the lumen of the anatomical structure, and the structure is occluded with the deployed clamping jaws engaging the exterior of the structure.Type: GrantFiled: March 6, 2010Date of Patent: July 3, 2012Assignee: Q-Tech Medical IncorporatedInventors: Stephen F. Quinn, Ross S. Tsugita
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Patent number: 8152782Abstract: A catheter system comprising a guidewire, an endovascular catheter, and an aspiration catheter. The guidewire has an expandable occluder mounted on a distal end. The guidewire and the endovascular catheter are insertable into a lumen of the aspiration catheter. The aspiration catheter also includes infusion and aspiration lumen(s) and port(s). Methods of using the catheter system for treating a vascular lesion and removing embolic material during the procedure are also disclosed.Type: GrantFiled: May 20, 2010Date of Patent: April 10, 2012Assignee: Boston Scientific Scimed, Inc.Inventors: Yue-Teh Jang, Ross S. Tsugita, Bruce S. Addis, Tracy D. Maahs, Jean C. Chang
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Patent number: 8133242Abstract: A method for occluding an anatomical structure (such as a vessel or duct) having a lumen comprises: introducing percutaneously into the body of the patient a delivery device; advancing the delivery device to an occlusion site outside the lumen of an anatomical structure; deploying an occlusion instrument from the delivery device; and occluding the anatomical structure with the occlusion instrument. The advance of the delivery device and the deployment of the occlusion instrument are guided by near-real-time imaging of a target region of a body of a patient, the target region including the occlusion site on the anatomical structure. The delivery device is guided to the occlusion site outside the lumen of the anatomical structure, and the structure is occluded with the deployed occlusion instrument engaging the exterior of the structure.Type: GrantFiled: April 27, 2007Date of Patent: March 13, 2012Assignee: Q-Tech Medical IncorporatedInventors: Stephen F. Quinn, Ross S. Tsugita
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Publication number: 20110224716Abstract: The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.Type: ApplicationFiled: May 25, 2011Publication date: September 15, 2011Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Ross S. Tsugita, Tracy D. Maahs, Yue-Teh Jang
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Publication number: 20110066177Abstract: A guided filter system for temporary placement of a filter in an artery or vein is disclosed. The system includes a guidewire slideable through a wire guide included in a distal region of a support wire. The support wire has an expandable filter, which is operable between a collapsed or enlarged condition. A variety of endovascular devices, including angioplasty, atherectomy, and stent-deployment catheters, are insertable over the guidewire and/or the support wire. Methods of using the guided filter system to direct and exchange endovascular devices to a region of interest, and to entrap and remove embolic material from the vessel are also disclosed.Type: ApplicationFiled: November 23, 2010Publication date: March 17, 2011Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventor: Ross S. Tsugita
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Patent number: 7862578Abstract: A guided filter system for temporary placement of a filter in an artery or vein is disclosed. The system includes a guidewire slideable through a wire guide included in a distal region of a support wire. The support wire has an expandable filter, which is operable between a collapsed or enlarged condition. A variety of endovascular devices, including angioplasty, atherectomy, and stent-deployment catheters, are insertable over the guidewire and/or the support wire. Methods of using the guided filter system to direct and exchange endovascular devices to a region of interest, and to entrap and remove embolic material from the vessel are also disclosed.Type: GrantFiled: May 21, 2007Date of Patent: January 4, 2011Assignee: Boston Scientific Scimed, Inc.Inventor: Ross S. Tsugita
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Patent number: 7842065Abstract: A rapid exchange sheath comprising an elongate tubular member, a guidewire, and support wire having an expandable filter at a distal end. The guidewire passes through a first opening at a distal end of the tubular member and a second opening a short distance proximal from the distal end. The support wire is received in a lumen of the tubular member, or, in certain embodiments, extends proximally through a third opening a short distance proximal from the distal end. Methods of using the sheaths for deploying and/or exchanging medical device(s) in a patient's vessel are also disclosed.Type: GrantFiled: December 15, 2006Date of Patent: November 30, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: W. Martin Belef, Ross S. Tsugita
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Publication number: 20100222736Abstract: A catheter system comprising a guidewire, an endovascular catheter, and an aspiration catheter. The guidewire has an expandable occluder mounted on a distal end. The guidewire and the endovascular catheter are insertable into a lumen of the aspiration catheter. The aspiration catheter also includes infusion and aspiration lumen(s) and port(s). Methods of using the catheter system for treating a vascular lesion and removing embolic material during the procedure are also disclosed.Type: ApplicationFiled: May 20, 2010Publication date: September 2, 2010Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Yue-Teh Jang, Ross S. Tsugita, Bruce S. Addis, Tracy D. Maahs, Jean C. Chang
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Publication number: 20100160955Abstract: The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.Type: ApplicationFiled: March 3, 2010Publication date: June 24, 2010Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Ross S. Tsugita, Tracy D. Maahs, Yue-Teh Jang
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Patent number: 7731683Abstract: A catheter system comprising a guidewire, an endovascular catheter, and an aspiration catheter. The guidewire has an expandable occluder mounted on a distal end. The guidewire and the endovascular catheter are insertable into a lumen of the aspiration catheter. The aspiration catheter also includes infusion and aspiration lumen(s) and port(s). Methods of using the catheter system for treating a vascular lesion and removing embolic material during the procedure are also disclosed.Type: GrantFiled: September 6, 2005Date of Patent: June 8, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: Yue-Teh Jang, Ross S. Tsugita, Bruce S. Addis, Tracy D. Maahs, Jean C. Chang
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Patent number: 7691123Abstract: The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.Type: GrantFiled: August 18, 2005Date of Patent: April 6, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: Ross S. Tsugita, Tracy D. Maahs, Yue-Teh Jang
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Patent number: 7362875Abstract: A self-expanding hearing device is disclosed. The device includes a body, a membrane coupled to the body, and a frame coupled to the body, so that a user can compress the frame for insertion into the user's ear canal, and when the user releases compression the frame expands so that the device is lodged in the ear canal.Type: GrantFiled: April 2, 2004Date of Patent: April 22, 2008Assignee: Sonic Innovations, Inc.Inventors: Gary M. Saxton, Ross S. Tsugita, Jobert P. Balceta
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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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Patent number: 7235061Abstract: A guided filter system for temporary placement of a filter in an artery or vein is disclosed. The system includes a guidewire slideable through a wire guide included in a distal region of a support wire. The support wire has an expandable filter, which is operable between a collapsed or enlarged condition. A variety of endovascular devices, including angioplasty, atherectomy, and stent-deployment catheters, are insertable over the guidewire and/or the support wire. Methods of using the guided filter system to direct and exchange endovascular devices to a region of interest, and to entrap and remove embolic material from the vessel are also disclosed.Type: GrantFiled: September 19, 2003Date of Patent: June 26, 2007Assignee: Boston Scientific Scimed, Inc.Inventor: Ross S. Tsugita
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Patent number: 7169165Abstract: A rapid exchange sheath comprising an elongate tubular member, a guidewire, and support wire having an expandable filter at a distal end. The guidewire passes through a first opening at a distal end of the tubular member and a second opening a short distance proximal from the distal end. The support wire is received in a lumen of the tubular member, or, in certain embodiments, extends proximally through a third opening a short distance proximal from the distal end. Methods of using the sheaths for deploying and/or exchanging medical device(s) in a patient's vessel are also disclosed.Type: GrantFiled: January 4, 2002Date of Patent: January 30, 2007Assignee: Boston Scientific Scimed, Inc.Inventors: W. Martin Belef, Ross S. Tsugita
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Patent number: 6966902Abstract: A cardioplegia occluder and methods of using the device during cardiac surgery are disclosed. The system typically includes a substantially rigid cannula with an occluder mounted on the distal region of the cannula that expands upon activation to occlude the aorta downstream of an infusion port which delivers cardioplegia solution to arrest the heart. Systems including cutting blades, blade guards, flanges, radiopaque markers and occluder aligners are also disclosed. In use, the distal end of the cannula is inserted through an incision into the aorta, the occluder is expanded and cardioplegia solution is infused upstream of the aorta to arrest the heart. The infusion port can alternately be used to aspirate cardioplegia or embolic debris or other unwanted material from the aorta.Type: GrantFiled: December 17, 1999Date of Patent: November 22, 2005Assignee: Edwards Lifesciences CorporationInventors: Ross S. Tsugita, Tracy D. Maahs
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Patent number: 6964673Abstract: The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.Type: GrantFiled: March 26, 2003Date of Patent: November 15, 2005Assignee: SciMed Life Systems, Inc.Inventors: Ross S. Tsugita, Tracy D. Maahs, Yue-Teh Jang
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Publication number: 20040258263Abstract: A self-expanding hearing device is disclosed. The device includes a body, a membrane coupled to the body, and a frame coupled to the body, so that a user can compress the frame for insertion into the user's ear canal, and when the user releases compression the frame expands so that the device is lodged in the ear canal.Type: ApplicationFiled: April 2, 2004Publication date: December 23, 2004Applicant: Sonic Innovations, Inc., a Delaware CorporationInventors: Gary M. Saxton, Ross S. Tsugita, Jobert P. Balceta