Patents by Inventor Todd R. Stangenes
Todd R. Stangenes 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: 10314641Abstract: A medical device utilizing temperature sensing to identify or assess anatomical bodies or structures includes an elongate tubular member, at least one electrode, a thermal sensor, and a temperature response assessment system or component. The at least one electrode may be connected to the distal portion of the elongate tubular member, and the one or more electrode can be configured to provide energy or heat to a portion of an anatomical body or structure. The thermal sensor may be configured to measure the thermal response of the portion of an anatomical body or structure, e.g., tissue or blood pools. The temperature response assessment system or component can be coupled to the thermal sensor. In embodiments, the device may include a lumen and port opening, which may accommodate a tool, such as a needle. Methods for using temperature sensing to identify an anatomical body or structure are also disclosed.Type: GrantFiled: November 23, 2015Date of Patent: June 11, 2019Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Saurav Paul, Todd R. Stangenes, Riki Thao
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Patent number: 9962184Abstract: A transseptal medical device is provided including a dilator, a needle, and a needle control mechanism. The needle may be disposed within the dilator, and the needle control mechanism may be operably connected to a proximal end of the needle or the dilator for selective adjustment of the distal end of the needle from a first position within the dilator to a second position external to the dilator. The needle control mechanism may include an actuator configured for rotation within the dilator in one embodiment. In another embodiment, the proximal end of the dilator may incorporate internal threads and the proximal end of the needle may incorporate external threads, such that the needle may be configured for rotation during selective adjustment of the distal end of the needle from a first position to a second position. A method for puncturing a septum of a heart is also disclosed.Type: GrantFiled: November 24, 2014Date of Patent: May 8, 2018Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Saurav Paul, Todd R. Stangenes, Reed R. Heimbecher
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Publication number: 20180078306Abstract: A magnetically-guided catheter includes a tip positioning magnet in the distal end portion thereof configured to interact with externally applied magnetic fields for magnetically-guided movement. The magnet may be geometrically asymmetric, for example, a C-shape in radial cross-section, so as to allow side-loading of an irrigation fluid lumen and other wire(s) or lines during fabrication. The outer shaft includes a plurality of segments, including a generally soft segment at the distal end thereof for magnetically-guided navigation. The fluid lumen, which extends through the outer shaft, and further extends completely through the magnet for coupling to the ablation electrode irrigation fluid inlet, is constructed so that its mechanical properties (i.e., flexibility) substantially matches that of the outer shaft. The combination of the outer shaft, inner fluid lumen and positioning magnet has interoperability with a broad range of ablation tip assemblies.Type: ApplicationFiled: September 27, 2017Publication date: March 22, 2018Inventors: Todd R. Stangenes, Richard Forrester Duncan
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Patent number: 9801683Abstract: A magnetically-guided catheter includes a tip positioning magnet in the distal end portion thereof configured to interact with externally applied magnetic fields for magnetically-guided movement. The magnet may be geometrically asymmetric, for example, a C-shape in radial cross-section, so as to allow side-loading of an irrigation fluid lumen and other wire(s) or lines during fabrication. The outer shaft includes a plurality of segments, including a generally soft segment at the distal end thereof for magnetically-guided navigation. The fluid lumen, which extends through the outer shaft, and further extends completely through the magnet for coupling to the ablation electrode irrigation fluid inlet, is constructed so that its mechanical properties (i.e., flexibility) substantially matches that of the outer shaft. The combination of the outer shaft, inner fluid lumen and positioning magnet has interoperability with a broad range of ablation tip assemblies.Type: GrantFiled: July 26, 2012Date of Patent: October 31, 2017Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Todd R. Stangenes, Richard Forrester Duncan
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Patent number: 9463302Abstract: A catheter is disclosed having a flexible tubing with a proximal end and a distal end. The catheter comprising at least one movable magnet provided within the distal end of the flexible tubing. A control mechanism is operable to selectively activate the at least one movable magnet from the proximal end of the flexible tubing. The at least one movable magnet is responsive to an external magnetic field to position and guide the distal end of the flexible tubing within a body of a patient.Type: GrantFiled: September 4, 2013Date of Patent: October 11, 2016Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Todd R. Stangenes, Saurav Paul, James V. Kauphusman, Troy T. Tegg, Jeffrey A. Schweitzer
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Publication number: 20160157919Abstract: A medical device utilizing temperature sensing to identify or assess anatomical bodies or structures includes an elongate tubular member, at least one electrode, a thermal sensor, and a temperature response assessment system or component. The at least one electrode may be connected to the distal portion of the elongate tubular member, and the one or more electrode can be configured to provide energy or heat to a portion of an anatomical body or structure. The thermal sensor may be configured to measure the thermal response of the portion of an anatomical body or structure, e.g., tissue or blood pools. The temperature response assessment system or component can be coupled to the thermal sensor. In embodiments, the device may include a lumen and port opening, which may accommodate a tool, such as a needle. Methods for using temperature sensing to identify an anatomical body or structure are also disclosed.Type: ApplicationFiled: November 23, 2015Publication date: June 9, 2016Inventors: Saurav Paul, Todd R. Stangenes, Riki Thao
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Patent number: 9220417Abstract: A medical device utilizing temperature sensing to identify or assess anatomical bodies or structures includes an elongate tubular member, at least one electrode, a thermal sensor, and a temperature response assessment system or component. The at least one electrode may be connected to the distal portion of the elongate tubular member, and the one or more electrode can be configured to provide energy or heat to a portion of an anatomical body or structure. The thermal sensor may be configured to measure the thermal response of the portion of an anatomical body or structure, e.g., tissue or blood pools. The temperature response assessment system or component can be coupled to the thermal sensor. In embodiments, the device may include a lumen and port opening, which may accommodate a tool, such as a needle. Methods for using temperature sensing to identify an anatomical body or structure are also disclosed.Type: GrantFiled: February 26, 2013Date of Patent: December 29, 2015Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Saurav Paul, Todd R. Stangenes, Riki Thao
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Publication number: 20150150592Abstract: A transseptal medical device is provided including a dilator, a needle, and a needle control mechanism. The needle may be disposed within the dilator, and the needle control mechanism may be operably connected to a proximal end of the needle or the dilator for selective adjustment of the distal end of the needle from a first position within the dilator to a second position external to the dilator. The needle control mechanism may include an actuator configured for rotation within the dilator in one embodiment. In another embodiment, the proximal end of the dilator may incorporate internal threads and the proximal end of the needle may incorporate external threads, such that the needle may be configured for rotation during selective adjustment of the distal end of the needle from a first position to a second position. A method for puncturing a septum of a heart is also disclosed.Type: ApplicationFiled: November 24, 2014Publication date: June 4, 2015Inventors: Saurav Paul, Todd R. Stangenes, Reed R. Heimbecher
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Patent number: 8900193Abstract: A transseptal medical device (10, 110) is provided including a dilator (12, 112), a needle (14, 114), and a needle control mechanism (22, 122). The needle (14, 114) may be disposed within the dilator (12, 112), and the needle control mechanism (22, 122) may be operably connected to a proximal end (24, 124, 16, 116) of the needle (14, 114) or the dilator (12, 112) for selective adjustment of the distal end (26, 126) of the needle (14, 114) from a first position within the dilator (12, 112) to a second position external to the dilator (12, 112). The needle control mechanism (22) may include an actuator (32) configured for rotation within the dilator in one embodiment.Type: GrantFiled: December 23, 2009Date of Patent: December 2, 2014Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Saurav Paul, Todd R. Stangenes, Reed R. Heimbecher
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Publication number: 20140316407Abstract: A magnetically-guided catheter includes a tip positioning magnet in the distal end portion thereof configured to interact with externally applied magnetic fields for magnetically-guided movement. The magnet may be geometrically asymmetric, for example, a C-shape in radial cross-section, so as to allow side-loading of an irrigation fluid lumen and other wire(s) or lines during fabrication. The outer shaft includes a plurality of segments, including a generally soft segment at the distal end thereof for magnetically-guided navigation. The fluid lumen, which extends through the outer shaft, and further extends completely through the magnet for coupling to the ablation electrode irrigation fluid inlet, is constructed so that its mechanical properties (i.e., flexibility) substantially matches that of the outer shaft. The combination of the outer shaft, inner fluid lumen and positioning magnet has interoperability with a broad range of ablation tip assemblies.Type: ApplicationFiled: July 26, 2012Publication date: October 23, 2014Inventors: Todd R. Stangenes, R. Forrester Duncan
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Publication number: 20140094768Abstract: A catheter is disclosed having a flexible tubing with a proximal end and a distal end. The catheter comprising at least one movable magnet provided within the distal end of the flexible tubing. A control mechanism is operable to selectively activate the at least one movable magnet from the proximal end of the flexible tubing. The at least one movable magnet is responsive to an external magnetic field to position and guide the distal end of the flexible tubing within a body of a patient.Type: ApplicationFiled: September 4, 2013Publication date: April 3, 2014Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Todd R. Stangenes, Saurav Paul, James V. Kauphusman, Troy T. Tegg, Jeffrey A. Schweitzer
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Publication number: 20130261491Abstract: A medical device utilizing temperature sensing to identify or assess anatomical bodies or structures includes an elongate tubular member, at least one electrode, a thermal sensor, and a temperature response assessment system or component. The at least one electrode may be connected to the distal portion of the elongate tubular member, and the one or more electrode can be configured to provide energy or heat to a portion of an anatomical body or structure. The thermal sensor may be configured to measure the thermal response of the portion of an anatomical body or structure, e.g., tissue or blood pools. The temperature response assessment system or component can be coupled to the thermal sensor. In embodiments, the device may include a lumen and port opening, which may accommodate a tool, such as a needle. Methods for using temperature sensing to identify an anatomical body or structure are also disclosed.Type: ApplicationFiled: February 26, 2013Publication date: October 3, 2013Applicant: St. Jude Medical, Atrial Fibrillation Division, IncInventors: Saurav Paul, Todd R. Stangenes, Riki Thao
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Patent number: 8532743Abstract: A catheter is disclosed having a flexible tubing with a proximal end and a distal end. The catheter comprising at least one movable magnet provided within the distal end of the flexible tubing. A control mechanism is operable to selectively activate the at least one movable magnet from the proximal end of the flexible tubing. The at least one movable magnet is responsive to an external magnetic field to position and guide the distal end of the flexible tubing within a body of a patient.Type: GrantFiled: August 5, 2010Date of Patent: September 10, 2013Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Todd R. Stangenes, Saurav Paul, James V. Kauphusman, Troy T. Tegg, Jeffrey A. Schweitzer
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Publication number: 20130085388Abstract: A tissue puncture assembly includes an elongate tubular member having a lumen, a distal portion having a side wall, a side port opening extending through the side wall and, and a guiding surface having a distal end that extends adjacent to a distal edge of the side port opening. The tissue puncture assembly further includes a flexible puncture member insertable through the lumen of the elongate tubular member. The flexible puncture member deflects upon contacting the guiding surface to exit the elongate tubular member through the side port in a lateral direction relative to a longitudinal direction of the elongate tubular member. The tissue puncture member is capable of puncturing tissue at an oblique angle. The tissue puncture member may further adopt a pre-formed shape at its distal end to prevent inadvertent puncture of tissue and to maintain access to the puncture site.Type: ApplicationFiled: November 26, 2012Publication date: April 4, 2013Inventors: Todd R. Stangenes, Saurav Paul
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Publication number: 20120035460Abstract: A catheter is disclosed having a flexible tubing with a proximal end and a distal end. The catheter comprising at least one movable magnet provided within the distal end of the flexible tubing. A control mechanism is operable to selectively activate the at least one movable magnet from the proximal end of the flexible tubing. The at least one movable magnet is responsive to an external magnetic field to position and guide the distal end of the flexible tubing within a body of a patient.Type: ApplicationFiled: August 5, 2010Publication date: February 9, 2012Inventors: Todd R. Stangenes, Saurav Paul, James V. Kauphusman, Troy T. Tegg, Jeffrey A. Schweitzer
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Publication number: 20110270191Abstract: A transseptal medical device (10, 110) is provided including a dilator (12, 112), a needle (14, 114), and a needle control mechanism (22, 122). The needle (14, 114) may be disposed within the dilator (12, 112), and the needle control mechanism (22, 122) may be operably connected to a proximal end (24, 124, 16, 116) of the needle (14, 114) or the dilator (12, 112) for selective adjustment of the distal end (26, 126) of the needle (14, 114) from a first position within the dilator (12, 112) to a second position external to the dilator (12, 112). The needle control mechanism (22) may include an actuator (32) configured for rotation within the dilator in one embodiment.Type: ApplicationFiled: December 23, 2009Publication date: November 3, 2011Inventors: Saurav Paul, Todd R. Stangenes, Reer R. Heimbecher
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Patent number: 7766907Abstract: A catheter is designed with a virtual electrode structure for creating a linear lesion. The catheter includes a sensor array that measures temperatures of adjacent tissue along the length of the virtual electrode section. The sensors in the sensor array include a conductive material that is substantially coated with an electrically and thermally insulating material. An aperture is formed in the insulating coating to expose an area of the conductive material. Leads are coupled with each sensor and are connected at their opposite, proximal ends with a discrimination circuit. The circuit processes the signals induced in the sensors to output a single temperature measurement, for example, the highest temperature, the lowest temperature, or the average temperature. The sensors also measure cardiac electrical activity and the leads are further connected to an electrocardiograph monitor to determine the efficacy of treatment.Type: GrantFiled: December 28, 2006Date of Patent: August 3, 2010Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Jeremy D. Dando, Timothy G. Curran, Todd R. Stangenes
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Publication number: 20100168777Abstract: A tissue puncture assembly includes an elongate tubular member having a lumen, a distal portion having a side wall, a side port opening extending through the side wall and, and a guiding surface having a distal end that extends adjacent to a distal edge of the side port opening. The tissue puncture assembly further includes a flexible puncture member insertable through the lumen of the elongate tubular member. The flexible puncture member deflects upon contacting the guiding surface to exit the elongate tubular member through the side port in a lateral direction relative to a longitudinal direction of the elongate tubular member. The tissue puncture member is capable of puncturing tissue at an oblique angle. The tissue puncture member may further adopt a pre-formed shape at its distal end to prevent inadvertent puncture of tissue and to maintain access to the puncture site.Type: ApplicationFiled: December 29, 2008Publication date: July 1, 2010Inventors: Todd R. Stangenes, Saurav Paul
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Publication number: 20090306655Abstract: The invention is directed to a catheter suitable for medical procedures such as cardiac ablation. The catheter includes a front-loaded catheter tip with an electrically active element. The catheter can include an elongate catheter shaft assembly having an inner shaft member with a distal end and a proximal end, and an outer shaft member with a distal end, a proximal end, and a lumen between the distal end and the proximal end. The inner shaft member can be inserted into the lumen of the outer shaft member along a longitudinal direction. The inner shaft member can include, at the distal end, a catheter tip member having a lateral dimension that is larger than a lateral dimension of the lumen of the outer shaft member.Type: ApplicationFiled: December 31, 2008Publication date: December 10, 2009Inventors: Todd R. STANGENES, Clnton W. SCHNEIDER, Richard STEHR
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Publication number: 20080161788Abstract: A catheter is designed with a virtual electrode structure for creating a linear lesion. The catheter includes a sensor array that measures temperatures of adjacent tissue along the length of the virtual electrode section. The sensors in the sensor array include a conductive material that is substantially coated with an electrically and thermally insulating material. An aperture is formed in the insulating coating to expose an area of the conductive material. Leads are coupled with each sensor and are connected at their opposite, proximal ends with a discrimination circuit. The circuit processes the signals induced in the sensors to output a single temperature measurement, for example, the highest temperature, the lowest temperature, or the average temperature. The sensors also measure cardiac electrical activity and the leads are further connected to an electrocardiograph monitor to determine the efficacy of treatment.Type: ApplicationFiled: December 28, 2006Publication date: July 3, 2008Inventors: Jeremy D. Dando, Timothy G. Curran, Todd R. Stangenes