Patents by Inventor Chad A. Thorstenson
Chad A. Thorstenson 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: 11154691Abstract: The instant invention relates generally to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter introducer catheters (introducer catheters with lumens greater than about 6 French) having increased strength, flexibility, and kink resistance. Introducer catheters according to the teachings herein may also include curved distal ends and flared (that is, funnel-like) transition sections within their lumens.Type: GrantFiled: May 2, 2019Date of Patent: October 26, 2021Assignee: ST. JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC.Inventors: Chad A. Thorstenson, James D. Savage
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Publication number: 20190344050Abstract: The instant invention relates generally to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter introducer catheters (introducer catheters with lumens greater than about 6 French) having increased strength, flexibility, and kink resistance. Introducer catheters according to the teachings herein may also include curved distal ends and flared (that is, funnel-like) transition sections within their lumens.Type: ApplicationFiled: May 2, 2019Publication date: November 14, 2019Inventors: Chad A. Thorstenson, James D. Savage
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Patent number: 10293139Abstract: The instant invention relates generally to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter introducer catheters (introducer catheters with lumens greater than about 6 French) having increased strength, flexibility, and kink resistance. Introducer catheters according to the teachings herein may also include curved distal ends and flared (that is, funnel-like) transition sections within their lumens.Type: GrantFiled: December 22, 2015Date of Patent: May 21, 2019Assignee: St. Jude Medical, Atrial Fibrillation Divison, Inc.Inventors: Chad A. Thorstenson, James D. Savage
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Patent number: 9669186Abstract: A method of manufacturing a splittable/peelable tubular body of a catheter or sheath wherein the tubular body has a splittable/peelable atraumatic tip is disclosed. The atraumatic tip is generally softer than the tubular body. The tubular body and atraumatic tip each comprise a peel mechanism longitudinally extending along their respective lengths. The peel mechanisms are formed by longitudinally extending regions of interfacial bonding between first and second longitudinally extending strips of polymer material. Each strip forms at least a portion of an outer circumferential surface of the tubular body and atraumatic tip. A region of stress concentration extends along the region of interfacial bonding. The stress concentration facilitates the splitting of the tubular body and atraumatic tip along their respective peel mechanisms.Type: GrantFiled: February 12, 2014Date of Patent: June 6, 2017Assignee: ST. JUDE MEDICAL ATRIAL FIBRILLATION DIVISIONInventors: Xiaoping Guo, Richard E. Stehr, Vitaliy G. Epshteyn, Bruce P. Holman, Donald A. Sauter, Chad A. Thorstenson, Daniel J. Potter, Nalin S. Perera
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Publication number: 20160114133Abstract: The instant invention relates generally to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter introducer catheters (introducer catheters with lumens greater than about 6 French) having increased strength, flexibility, and kink resistance. Introducer catheters according to the teachings herein may also include curved distal ends and flared (that is, funnel-like) transition sections within their lumens.Type: ApplicationFiled: December 22, 2015Publication date: April 28, 2016Inventors: Chad A. Thorstenson, James D. Savage
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Patent number: 9254374Abstract: The instant invention relates generally to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter introducer catheters (introducer catheters with lumens greater than about 6 French) having increased strength, flexibility, and kink resistance. Introducer catheters according to the teachings herein may also include curved distal ends and flared (that is, funnel-like) transition sections within their lumens.Type: GrantFiled: February 15, 2008Date of Patent: February 9, 2016Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventor: Chad A. Thorstenson
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Publication number: 20140157573Abstract: A method of manufacturing a splittable/peelable tubular body of a catheter or sheath wherein the tubular body has a splittable/peelable atraumatic tip is disclosed. The atraumatic tip is generally softer than the tubular body. The tubular body and atraumatic tip each comprise a peel mechanism longitudinally extending along their respective lengths. The peel mechanisms are formed by longitudinally extending regions of interfacial bonding between first and second longitudinally extending strips of polymer material. Each strip forms at least a portion of an outer circumferential surface of the tubular body and atraumatic tip. A region of stress concentration extends along the region of interfacial bonding. The stress concentration facilitates the splitting of the tubular body and atraumatic tip along their respective peel mechanisms.Type: ApplicationFiled: February 12, 2014Publication date: June 12, 2014Inventors: Xiaoping Guo, Richard E. Stehr, Vitaliy G. Epshteyn, Bruce P. Holman, Donald A. Sauter, Chad A. Thorstenson, Daniel J. Potter, Nalin S. Perera
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Patent number: 8657789Abstract: A splittable/peelable tubular body (2) of a catheter or sheath wherein the tubular body (2) has a splittable/peelable atraumatic tip (14) is disclosed. The atraumatic tip (4) is generally softer than the tubular body (2). The tubular body (2) and atraumatic tip (4) each comprise a peel mechanism longitudinally extending along their respective lengths. The peel mechanisms are formed by longitudinally extending regions of interfacial bonding (11) between first and second longitudinally extending strips (8, 10) of polymer material. Each strip (8, 10) forms at least a portion of an outer circumferential surface of the tubular body (2) and atraumatic tip (4). A region of stress concentration extends along the region of interfacial bonding. The stress concentration facilitates the splitting of the tubular body (2) and atraumatic tip (4) along their respective peel mechanisms.Type: GrantFiled: April 28, 2006Date of Patent: February 25, 2014Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Xiaoping Guo, Richard E. Stehr, Vitaliy G. Epshteyn, Bruce P. Holman, Donald A. Sauter, Chad A. Thorstenson, Daniel J. Potter, Nalin S. Perera
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Patent number: 8449527Abstract: A splittable cannula includes a radiopaque marker placed at or near the distal end of the cannula. The radiopaque marker may be a unitary piece, or may consist of several portions. The cannula may include a sheath or catheter body with a grooved score line running along a portion of the sheath body and a radiopaque marker located at a distal end of the body and abutting the body. The radiopaque marker may be located within the lumen of the sheath, may be embedded in the sheath wall, or may be affixed to the external sheath wall. The radiopaque marker may be scored, notched, grooved, or contain apertures longitudinally. The notches, grooves, apertures, and/or score lines in both the sheath or catheter body and the radiopaque marker serve to provide a weakened tear path. An electrode lead may be coupled with the radiopaque marker.Type: GrantFiled: December 29, 2010Date of Patent: May 28, 2013Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Chad A. Thorstenson, Richard E. Stehr, Omar Amirana, Daniel J. Potter
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Publication number: 20110092911Abstract: A splittable cannula includes a radiopaque marker placed at or near the distal end of the cannula. The radiopaque marker may be a unitary piece, or may consist of several portions. The cannula may include a sheath or catheter body with a grooved score line running along a portion of the sheath body and a radiopaque marker located at a distal end of the body and abutting the body. The radiopaque marker may be located within the lumen of the sheath, may be embedded in the sheath wall, or may be affixed to the external sheath wall. The radiopaque marker may be scored, notched, grooved, or contain apertures longitudinally. The notches, grooves, apertures, and/or score lines in both the sheath or catheter body and the radiopaque marker serve to provide a weakened tear path. An electrode lead may be coupled with the radiopaque marker.Type: ApplicationFiled: December 29, 2010Publication date: April 21, 2011Inventors: Chad A. Thorstenson, Richard E. Stehr, Omar Amirana, Daniel J. Potter
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Patent number: 7879024Abstract: A splittable cannula includes a radiopaque marker placed at or near the distal end of the cannula. The radiopaque marker may be a unitary piece, or may consist of several portions. The cannula may include a sheath or catheter body with a grooved score line running along a portion of the sheath body and a radiopaque marker located at a distal end of the body and abutting the body. The radiopaque marker may be located within the lumen of the sheath, may be embedded in the sheath wall, or may be affixed to the external sheath wall. The radiopaque marker may be scored, notched, grooved, or contain apertures longitudinally. The notches, grooves, apertures, and/or score lines in both the sheath or catheter body and the radiopaque marker serve to provide a weakened tear path. An electrode lead may be coupled with the radiopaque marker.Type: GrantFiled: February 4, 2005Date of Patent: February 1, 2011Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Chad A. Thorstenson, Richard E. Stehr, Omar Amirana, Daniel J. Potter
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Publication number: 20100217235Abstract: The instant invention relates generally to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter introducer catheters (introducer catheters with lumens greater than about 6 French) having increased strength, flexibility, and kink resistance. Introducer catheters according to the teachings herein may also include curved distal ends and flared (that is, funnel-like) transition sections within their lumens.Type: ApplicationFiled: February 15, 2008Publication date: August 26, 2010Inventors: Chad A. Thorstenson, James D. Savage
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Publication number: 20080208128Abstract: A splittable/peelable tubular body (2) of a catheter or sheath wherein the tubular body (2) has a splittable/peelable atraumatic tip (14) is disclosed. The atraumatic tip (4) is generally softer than the tubular body (2). The tubular body (2) and atraumatic tip (4) each comprise a peel mechanism longitudinally extending along their respective lengths. The peel mechanisms are formed by longitudinally extending regions of interfacial bonding (11) between first and second longitudinally extending strips (8, 10) of polymer material. Each strip (8, 10) forms at least a portion of an outer circumferential surface of the tubular body (2) and atraumatic tip (4). A region of stress concentration extends along the region of interfacial bonding. The stress concentration facilitates the splitting of the tubular body (2) and atraumatic tip (4) along their respective peel mechanisms.Type: ApplicationFiled: April 28, 2006Publication date: August 28, 2008Inventors: Xiaoping Guo, Richard E. Stehr, Vitaliy G. Epshteyn, Bruce P. Holman, Donald A. Sauter, Chad A. Thorstenson, Daniel J. Potter, Nalin S. Perera
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Publication number: 20050149060Abstract: A splittable cannula includes a radiopaque marker placed at or near the distal end of the cannula. The radiopaque marker may be a unitary piece, or may consist of several portions. The cannula may include a sheath or catheter body with a grooved score line running along a portion of the sheath body and a radiopaque marker located at a distal end of the body and abutting the body. The radiopaque marker may be located within the lumen of the sheath, may be embedded in the sheath wall, or may be affixed to the external sheath wall. The radiopaque marker may be scored, notched, grooved, or contain apertures longitudinally. The notches, grooves, apertures, and/or score lines in both the sheath or catheter body and the radiopaque marker serve to provide a weakened tear path. An electrode lead may be coupled with the radiopaque marker.Type: ApplicationFiled: February 4, 2005Publication date: July 7, 2005Inventors: Chad Thorstenson, Richard Stehr, Omar Amirana, Daniel Potter