Patents by Inventor Fernando Alvarez de Toledo
Fernando Alvarez de Toledo 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: 8343105Abstract: The present invention relates to a multi-size catheter for use in biliary endoscopic procedures. The multi-size catheter comprises an outer diameter defined by a plurality of superimposed peelable layers. The peelable layers allow the multi-size catheter to function as a single operator exchange catheter without the need, and additional expense, of an endoscope sheath. Before positioning the multi-size catheter within the working channel of an endoscope, the peelable layers may be selectively removed in order to obtain an outer diameter for the catheter that is less than, but approximate to, the inner diameter of the working channel of the endoscope. The resulting fit eliminates the potential for a guidewire to slip out of the guidewire channel and become pinched between the catheter and the endoscope working channel. With an incorrect fit, a pinched guidewire would restrict the desired movements of both the guidewire and the catheter.Type: GrantFiled: November 16, 2010Date of Patent: January 1, 2013Assignee: Boston Scientific Scimed, Inc.Inventors: James E. Windheuser, Fernando Alvarez de Toledo
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Patent number: 8187217Abstract: A conduit is provided to provide a bypass around a blockage in the coronary artery. The conduit is adapted to be positioned in the myocardium or heart wall to provide a passage for blood to flow between a chamber of the heart such as the left ventricle and the coronary artery, distal to the blockage. The stent is self-expanding or uses a balloon to expand the stent in the heart wall. Various attachment means are provided to anchor the stent and prevent its migration. In one embodiment, a conduit is provided having a distal top which is more preferably a ball top, wire top, flare top or flip-down top. These top configurations anchor the shunt at one end in the coronary artery.Type: GrantFiled: June 20, 2005Date of Patent: May 29, 2012Inventors: Richard J. Renati, Mark A. Bowen, Stephen C. Evans, Margaret G. McCabe, Marvin Guiles, Fernando Alvarez de Toledo, Gerald Melsky
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Patent number: 8043208Abstract: An insertion tool for use in inserting a guide wire into a guide wire lumen of a catheter for use in a lumen of an endoscope. The insertion tool includes a main body having a main lumen and a funnel-shaped extension connected to and disposed atop the main body. The funnel-shaped extension having a funnel lumen. The funnel lumen has a top opening and a bottom opening. The funnel lumen tapering from the top opening to the bottom opening. The bottom opening positioned and sized to communicate with the guide wire lumen of the catheter such that, when the catheter is disposed in the main lumen, the guide wire may be easily inserted into the top opening of the funnel lumen and into the guide wire lumen of the catheter.Type: GrantFiled: March 15, 2010Date of Patent: October 25, 2011Assignee: Boston Scientific Scimed, Inc.Inventors: James E. Windheuser, James Yearick, Oscar R. Carrillo, Jr., Robert C. Allman, Fernando Alvarez de Toledo, Stephen C. Evans, Norman C. May
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Publication number: 20110060315Abstract: The present invention relates to a multi-size catheter for use in biliary endoscopic procedures. The multi-size catheter comprises an outer diameter defined by a plurality of superimposed peelable layers. The peelable layers allow the multi-size catheter to function as a single operator exchange catheter without the need, and additional expense, of an endoscope sheath. Before positioning the multi-size catheter within the working channel of an endoscope, the peelable layers may be selectively removed in order to obtain an outer diameter for the catheter that is less than, but approximate to, the inner diameter of the working channel of the endoscope. The resulting fit eliminates the potential for a guidewire to slip out of the guidewire channel and become pinched between the catheter and the endoscope working channel. With an incorrect fit, a pinched guidewire would restrict the desired movements of both the guidewire and the catheter.Type: ApplicationFiled: November 16, 2010Publication date: March 10, 2011Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: James E. Windheuser, Fernando Alvarez de Toledo
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Patent number: 7846133Abstract: The present invention relates to a multi-size catheter for use in biliary endoscopic procedures. The multi-size catheter comprises an outer diameter defined by a plurality of superimposed peelable layers. The peelable layers allow the multi-size catheter to function as a single operator exchange catheter without the need, and additional expense, of an endoscope sheath. Before positioning the multi-size catheter within the working channel of an endoscope, the peelable layers may be selectively removed in order to obtain an outer diameter for the catheter that is less than, but approximate to, the inner diameter of the working channel of the endoscope. The resulting fit eliminates the potential for a guidewire to slip out of the guidewire channel and become pinched between the catheter and the endoscope working channel. With an incorrect fit, a pinched guidewire would restrict the desired movements of both the guidewire and the catheter.Type: GrantFiled: February 4, 2005Date of Patent: December 7, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: James E. Windheuser, Fernando Alvarez de Toledo
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Publication number: 20100174139Abstract: An insertion tool for use in inserting a guide wire into a guide wire lumen of a catheter for use in a lumen of an endoscope. The insertion tool includes a main body having a main lumen and a funnel-shaped extension connected to and disposed atop the main body. The funnel-shaped extension having a funnel lumen. The funnel lumen has a top opening and a bottom opening. The funnel lumen tapering from the top opening to the bottom opening. The bottom opening positioned and sized to communicate with the guide wire lumen of the catheter such that, when the catheter is disposed in the main lumen, the guide wire may be easily inserted into the top opening of the funnel lumen and into the guide wire lumen of the catheter.Type: ApplicationFiled: March 15, 2010Publication date: July 8, 2010Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: James E. Windheuser, James Yearick, Oscar Carrillo, JR., Robert C. Allman, Fernando Alvarez de Toledo, Stephen C. Evans, Norman C. May
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Patent number: 7706861Abstract: An insertion tool for use in inserting a guide wire into a guide wire lumen of a catheter for use in a lumen of an endoscope. The insertion tool includes a main body having a main lumen and a funnel-shaped extension connected to and disposed atop the main body. The funnel-shaped extension having a funnel lumen. The funnel lumen has a top opening and a bottom opening. The funnel lumen tapering from the top opening to the bottom opening. The bottom opening positioned and sized to communicate with the guide wire lumen of the catheter such that, when the catheter is disposed in the main lumen, the guide wire may be easily inserted into the top opening of the funnel lumen and into the guide wire lumen of the catheter.Type: GrantFiled: June 28, 2006Date of Patent: April 27, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: James E. Windheuser, James Yearick, Oscar Carrillo, Jr., Robert C. Allman, Fernando Alvarez de Toledo, Stephen C. Evans, Norman C. May
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Patent number: 7076285Abstract: An insertion tool for use in inserting a guide wire into a guide wire lumen of a catheter for use in a lumen of an endoscope. The insertion tool includes a main body having a main lumen and a funnel-shaped extension connected to and disposed atop the main body. The funnel-shaped extension having a funnel lumen. The funnel lumen has a top opening and a bottom opening. The funnel lumen tapering from the top opening to the bottom opening. The bottom opening positioned and sized to communicate with the guide wire lumen of the catheter such that, when the catheter is disposed in the main lumen, the guide wire may be easily inserted into the top opening of the funnel lumen and into the guide wire lumen of the catheter.Type: GrantFiled: April 7, 2005Date of Patent: July 11, 2006Assignee: SciMed Life Systems, Inc.Inventors: James E. Windheuser, James Yearick, Oscar Carrillo, Jr., Robert C. Allman, Fernando Alvarez de Toledo, Stephen C. Evans, Norman C. May
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Publication number: 20060116625Abstract: A conduit is provided to provide a bypass around a blockage in the coronary artery. The conduit is adapted to be positioned in the myocardium or heart wall to provide a passage for blood to flow between a chamber of the heart such as the left ventricle and the coronary artery, distal to the blockage. The stent is self-expanding or uses a balloon to expand the stent in the heart wall. Various attachment means are provided to anchor the stent and prevent its migration. In one embodiment, a conduit is provided having a distal top which is more preferably a ball top, wire top, flare top or flip-down top. These top configurations anchor the shunt at one end in the coronary artery.Type: ApplicationFiled: June 20, 2005Publication date: June 1, 2006Inventors: Richard Renati, Mark Bowen, Stephen Evans, Margaret McCabe, Marvin Guiles, Fernando Alvarez de Toledo, Gerald Melsky
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Patent number: 6997908Abstract: A single operator exchange biliary catheter having a common distal lumen. The biliary catheter includes an elongate shaft having a proximal portion defining an ancillary lumen and a distal portion defining a common guidewire and ancillary lumen. The common distal lumen reduces the profile of the distal portion of the shaft. The elongate shaft also includes a proximal guidewire port disposed between the proximal end of the shaft and the distal end of the shaft to facilitate single operator use. A seal may be disposed adjacent the proximal guidewire port to thereby seal the port. Preferably, the shaft includes a single lumen distal portion and a bi-lumen proximal portion. The single lumen distal portion of the shaft may be curved and may include a tapered or spherically shaped distal tip.Type: GrantFiled: December 20, 2002Date of Patent: February 14, 2006Assignee: SciMed Life Systems, Inc.Inventors: Oscar R. Carrillo, Jr., James Yearick, Robert C. Allman, Fernando Alvarez de Toledo, Michael Ciannella, Stephen C. Evans
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Publication number: 20050177043Abstract: An insertion tool for use in inserting a guide wire into a guide wire lumen of a catheter for use in a lumen of an endoscope. The insertion tool includes a main body having a main lumen and a funnel-shaped extension connected to and disposed atop the main body. The funnel-shaped extension having a funnel lumen. The funnel lumen has a top opening and a bottom opening. The funnel lumen tapering from the top opening to the bottom opening. The bottom opening positioned and sized to communicate with the guide wire lumen of the catheter such that, when the catheter is disposed in the main lumen, the guide wire may be easily inserted into the top opening of the funnel lumen and into the guide wire lumen of the catheter.Type: ApplicationFiled: April 7, 2005Publication date: August 11, 2005Inventors: James Windheuser, James Yearick, Oscar Carrillo, Robert Allman, Fernando Alvarez de Toledo, Stephen Evans, Norman May
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Publication number: 20050148950Abstract: The present invention relates to a multi-size catheter for use in biliary endoscopic procedures. The multi-size catheter comprises an outer diameter defined by a plurality of superimposed peelable layers. The peelable layers allow the multi-size catheter to function as a single operator exchange catheter without the need, and additional expense, of an endoscope sheath. Before positioning the multi-size catheter within the working channel of an endoscope, the peelable layers may be selectively removed in order to obtain an outer diameter for the catheter that is less than, but approximate to, the inner diameter of the working channel of the endoscope. The resulting fit eliminates the potential for a guidewire to slip out of the guidewire channel and become pinched between the catheter and the endoscope working channel. With an incorrect fit, a pinched guidewire would restrict the desired movements of both the guidewire and the catheter.Type: ApplicationFiled: February 4, 2005Publication date: July 7, 2005Inventors: James Windheuser, Fernando Alvarez de Toledo
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Patent number: 6879854Abstract: An insertion tool and method for easily inserting a guide wire into a guide wire lumen of a catheter, particularly a rapid exchange catheter, for use in an endoscope. The insertion tool includes a main body having a main lumen and a funnel-shaped extension having a funnel lumen that merges with the main lumen. The funnel lumen has a first large opening and a second smaller opening aligned with the guide wire lumen of the catheter such that, when the catheter is disposed in the main lumen, the guide wire may be easily inserted into the large opening of the funnel-shaped extension and into the guide wire lumen of the catheter. Also, a re-insertion tool and method for re-inserting a guide wire into a channel of a catheter. The re-insertion tool is particularly useful in combination with an endoscope and an SOE catheter disposed therein.Type: GrantFiled: May 28, 2003Date of Patent: April 12, 2005Assignee: SciMed Life Systems, Inc.Inventors: James E. Windheuser, James Yearick, Oscar Carrillo, Jr., Robert C. Allman, Fernando Alvarez de Toledo, Stephen C. Evans, Norman C. May
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Patent number: 6869416Abstract: The present invention relates to a multi-size catheter for use in biliary endoscopic procedures. The multi-size catheter comprises an outer diameter defined by a plurality of superimposed peelable layers. The peelable layers allow the multi-size catheter to function as a single operator exchange catheter without the need, and additional expense, of an endoscope sheath. Before positioning the multi-size catheter within the working channel of an endoscope, the peelable layers may be selectively removed in order to obtain an outer diameter for the catheter that is less than, but approximate to, the inner diameter of the working channel of the endoscope. The resulting fit eliminates the potential for a guidewire to slip out of the guidewire channel and become pinched between the catheter and the endoscope working channel. With an incorrect fit, a pinched guidewire would restrict the desired movements of both the guidewire and the catheter.Type: GrantFiled: May 28, 2003Date of Patent: March 22, 2005Assignee: SciMed Life Systems, Inc.Inventors: James E. Windheuser, Fernando Alvarez de Toledo
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Publication number: 20030233043Abstract: An insertion tool and method for easily inserting a guide wire into a guide wire lumen of a catheter, particularly a rapid exchange catheter, for use in an endoscope. The insertion tool includes a main body having a main lumen and a funnel-shaped extension having a funnel lumen that merges with the main lumen. The funnel lumen has a first large opening and a second smaller opening aligned with the guide wire lumen of the catheter such that, when the catheter is disposed in the main lumen, the guide wire may be easily inserted into the large opening of the funnel-shaped extension and into the guide wire lumen of the catheter. The insertion tool may include a tongue or key disposed in the main lumen that is sized to fit in a slot of the catheter to thereby maintain alignment between the funnel lumen and the slot of the catheter.Type: ApplicationFiled: May 28, 2003Publication date: December 18, 2003Applicant: SciMed Life Systems, Inc.Inventors: James E. Windheuser, James Yearick, Oscar Carrillo, Robert C. Allman, Fernando Alvarez de Toledo, Stephen C. Evans, Norman C. May
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Publication number: 20030199826Abstract: The present invention relates to a multi-size catheter for use in biliary endoscopic procedures. The multi-size catheter comprises an outer diameter defined by a plurality of superimposed peelable layers. The peelable layers allow the multi-size catheter to function as a single operator exchange catheter without the need, and additional expense, of an endoscope sheath. Before positioning the multi-size catheter within the working channel of an endoscope, the peelable layers may be selectively removed in order to obtain an outer diameter for the catheter that is less than, but approximate to, the inner diameter of the working channel of the endoscope. The resulting fit eliminates the potential for a guidewire to slip out of the guidewire channel and become pinched between the catheter and the endoscope working channel. With an incorrect fit, a pinched guidewire would restrict the desired movements of both the guidewire and the catheter.Type: ApplicationFiled: May 28, 2003Publication date: October 23, 2003Applicant: SciMed Life Systems, Inc.Inventors: James E. Windheuser, Fernando Alvarez de Toledo
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Patent number: 6606515Abstract: An insertion tool and method for easily inserting a guide wire into a guide wire lumen of a catheter, particularly a rapid exchange catheter, for use in an endoscope. The insertion tool includes a main body having a main lumen and a funnel-shaped extension having a funnel lumen that merges with the main lumen. The funnel lumen has a first large opening and a second smaller opening aligned with the guide wire lumen of the catheter such that, when the catheter is disposed in the main lumen, the guide wire may be easily inserted into the large opening of the funnel-shaped extension and into the guide wire lumen of the catheter. The insertion tool may include a tongue or key disposed in the main lumen that is sized to fit in a slot of the catheter to thereby maintain alignment between the funnel lumen and the slot of the catheter.Type: GrantFiled: May 14, 1999Date of Patent: August 12, 2003Assignee: SciMed Life Systems, Inc.Inventors: James E. Windheuser, James Yearick, Oscar Carrillo, Jr., Robert C. Allman, Fernando Alvarez de Toledo, Stephen C. Evans, Norman C. May
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Patent number: 6582401Abstract: The present invention relates to a multi-size catheter for use in biliary endoscopic procedures. The multi-size catheter comprises an outer diameter defined by a plurality of superimposed peelable layers. The peelable layers allow the multi-size catheter to function as a single operator exchange catheter without the need, and additional expense, of an endoscope sheath. Before positioning the multi-size catheter within the working channel of an endoscope, the peelable layers may be selectively removed in order to obtain an outer diameter for the catheter that is less than, but approximate to, the inner diameter of the working channel of the endoscope. The resulting fit eliminates the potential for a guidewire to slip out of the guidewire channel and become pinched between the catheter and the endoscope working channel. With an incorrect fit, a pinched guidewire would restrict the desired movements of both the guidewire and the catheter.Type: GrantFiled: December 27, 1999Date of Patent: June 24, 2003Assignee: SciMed Life Sytems, Inc.Inventors: James E. Windheuser, Fernando Alvarez de Toledo
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Patent number: 6562024Abstract: A single operator drainage catheter delivery system and method of use. The delivery system includes a guide member having a guidewire lumen extending through a distal portion thereof, with a proximal guidewire port located distal of the proximal end. A placement catheter disposed over the guide member has a catheter lumen extending through a distal portion thereof, with a proximal guidewire port located distal of the proximal end. Locating the proximal guidewire ports as such allows the delivery system to be used by a single person with a shorter guidewire. A drainage catheter is disposed about the guide member distal of the placement catheter. The drainage catheter delivery system preferably includes a means for releasably connecting the placement catheter to the drainage catheter, wherein the releasable connecting means disconnects the drainage catheter upon displacement of the guide member.Type: GrantFiled: May 11, 2001Date of Patent: May 13, 2003Assignee: SciMed Life Systems, Inc.Inventors: Fernando Alvarez de Toledo, Michael Ciannella, Susan M. Ostrowski, Albert N. Solbjor
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Publication number: 20030088153Abstract: A single operator exchange biliary catheter having a common distal lumen. The biliary catheter includes an elongate shaft having a proximal portion defining an ancillary lumen and a distal portion defining a common guidewire and ancillary lumen. The common distal lumen reduces the profile of the distal portion of the shaft. The elongate shaft also includes a proximal guidewire port disposed between the proximal end of the shaft and the distal end of the shaft to facilitate single operator use. A seal may be disposed adjacent the proximal guidewire port to thereby seal the port. Preferably, the shaft includes a single lumen distal portion and a bitumen proximal portion. The single lumen distal portion of the shaft may be curved and may include a tapered or spherically shaped distal tip.Type: ApplicationFiled: December 20, 2002Publication date: May 8, 2003Applicant: SciMed Life Systems, Inc.Inventors: Oscar R. Carrillo, James Yearick, Robert C. Allman, Fernando Alvarez de Toledo, Michael Ciannella, Stephen C. Evans