Patents by Inventor Simon Nguyen
Simon Nguyen 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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Publication number: 20250032284Abstract: Delivery systems for delivering an aortic repair device to treat a diseased portion of the aorta of a patient at or near the aortic arch and associated devices and methods are disclosed herein. A delivery system configured in accordance with embodiments of the present technology can include an outer catheter, an inner catheter assembly extending at least partially through the outer catheter, a handle, a tip capture mechanism configured to releasably secure an end portion of the aortic repair device, and a release wire actuatable to release the end portion from the tip capture mechanism. The handle can be actuated to retract the outer catheter relative to the inner catheter assembly to deploy the aortic repair device. The handle can also be actuated to advance a portion of the inner catheter assembly relative to the outer catheter to reorient and position the end portion of the aortic repair device.Type: ApplicationFiled: July 25, 2024Publication date: January 30, 2025Inventors: Richard Roy Newhauser, G Ray Martin, Steven Kim, Tony Le, Morgan Jawitz, Simon Nguyen, Hanson Gifford, Brian Tachibana
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Patent number: 11103261Abstract: An ultrasound catheter includes a catheter body, an ultrasound transmission member, a sonic connector, a constraining member, and a vibrational absorber. The vibrational absorber has an opening through which the ultrasonic transmission member extends. The vibrational absorber is located in a recessed portion of the constraining member. The vibrational absorber is both longitudinally interposed between the constraining member and the distal portion of the sonic connector and laterally interposed between the recessed portion of the constraining member and the ultrasound transmission member. The recessed portion of the constraining member overlaps a portion of an exterior of the distal portion of the sonic connector.Type: GrantFiled: October 17, 2018Date of Patent: August 31, 2021Assignee: C.R. Bard, Inc.Inventors: Henry Nita, Jeff Sarge, Simon Nguyen
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Patent number: 10376272Abstract: An ultrasonic catheter includes a body and an ultrasound transmission member disposed in the body. A head is coupled to the ultrasound transmission member, wherein a gap separates the head from a body distal end. A guidewire tube extends through the body and the head. A proximal end connector assembly includes a hub and an absorber member. The hub has a bore coupled to and in fluid communication with the body. The absorber member is disposed within the bore around the ultrasound transmission member. A sonic connector is disposed between the ultrasound transmission member and a separate generator.Type: GrantFiled: August 28, 2017Date of Patent: August 13, 2019Assignee: FLOWCARDIA, INC.Inventors: Henry Nita, Jeff Sarge, Martinos Tran, Simon Nguyen
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Publication number: 20190059920Abstract: An ultrasound catheter includes a catheter body, an ultrasound transmission member, a sonic connector, a constraining member, and a vibrational absorber. The vibrational absorber has an opening through which the ultrasonic transmission member extends. The vibrational absorber is located in a recessed portion of the constraining member. The vibrational absorber is both longitudinally interposed between the constraining member and the distal portion of the sonic connector and laterally interposed between the recessed portion of the constraining member and the ultrasound transmission member. The recessed portion of the constraining member overlaps a portion of an exterior of the distal portion of the sonic connector.Type: ApplicationFiled: October 17, 2018Publication date: February 28, 2019Inventors: Henry Nita, Jeff Sarge, Simon Nguyen
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Patent number: 10130380Abstract: Ultrasound catheter devices and methods of the present invention generally provide for ablation and/or disruption of vascular occlusions. An ultrasound transmission member, such as a wire, transmits vibrational energy from an ultrasound transducer to a distal head of the catheter to disrupt vascular occlusions. An absorber member is disposed on or around the ultrasound transmission wire at a location adjacent the sonic connector of the catheter. The absorber member absorbs heat, vibrations, and/or the like from the ultrasound transmission wire at or near the area where the transmission wire is coupled with the sonic connector. The absorptive function typically slows the process of wear and tear on the transmission wire, thus extending the useful life of the ultrasound catheter.Type: GrantFiled: February 6, 2015Date of Patent: November 20, 2018Assignee: Flowcardia, Inc.Inventors: Henry Nita, Jeff Sarge, Simon Nguyen
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Publication number: 20170354428Abstract: An ultrasonic catheter includes a body and an ultrasound transmission member disposed in the body. A head is coupled to the ultrasound transmission member, wherein a gap separates the head from a body distal end. A guidewire tube extends through the body and the head. A proximal end connector assembly includes a hub and an absorber member. The hub has a bore coupled to and in fluid communication with the body. The absorber member is disposed within the bore around the ultrasound transmission member. A sonic connector is disposed between the ultrasound transmission member and a separate generator.Type: ApplicationFiled: August 28, 2017Publication date: December 14, 2017Inventors: Henry Nita, Jeff Sarge, Martinos Tran, Simon Nguyen
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Patent number: 9770250Abstract: Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, an ultrasound catheter includes an elongate flexible catheter body with one or more lumens. An ultrasound transmission member or wire extends longitudinally through the catheter body lumen and, in many embodiments, a guide wire tube also extends through the same lumen. A distal head is fixed to or otherwise mechanically coupled with the distal end of the ultrasound transmission member or wire and is positioned adjacent the distal end of the catheter body. Although the distal end of the catheter body overlaps the distal head, the distal head is not directly affixed to the distal end of the catheter body. Thus, the distal tip may move freely, relative to the distal end of the catheter body when ultrasonic energy is applied through the ultrasound transmission member.Type: GrantFiled: April 14, 2016Date of Patent: September 26, 2017Assignee: Flowcardia, Inc.Inventors: Henry Nita, Jeff Sarge, Martinos Tran, Simon Nguyen
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Publication number: 20170265886Abstract: Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, ultrasound catheters include an elongate flexible catheter body with one or more lumens, an ultrasound transmission member extending longitudinally through the catheter body lumen and, in some embodiments, a guidewire tube extending through the lumen. A distal head for disrupting occlusions is coupled with the distal end of the ultrasound transmission member and is positioned adjacent the distal end of the catheter body. Some embodiments include improved features such as a bend in the catheter body for enhancing positioning and/or advancement of the catheter.Type: ApplicationFiled: June 5, 2017Publication date: September 21, 2017Inventors: Henry Nita, Jeff Sarge, Simon Nguyen
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Patent number: 9585684Abstract: Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, ultrasound catheters include an elongate flexible catheter body with one or more lumens, an ultrasound transmission member extending longitudinally through the catheter body lumen and, in some embodiments, a guidewire tube extending through the lumen. A distal head for disrupting occlusions is coupled with the distal end of the ultrasound transmission member and is positioned adjacent the distal end of the catheter body. Some embodiments include improved features such as a bend in the catheter body for enhancing positioning and/or advancement of the catheter.Type: GrantFiled: August 4, 2014Date of Patent: March 7, 2017Assignee: Flowcardia, Inc.Inventors: Henry Nita, Jeff Sarge, Simon Nguyen
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Publication number: 20160242797Abstract: Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, an ultrasound catheter includes an elongate flexible catheter body with one or more lumens. An ultrasound transmission member or wire extends longitudinally through the catheter body lumen and, in many embodiments, a guide wire tube also extends through the same lumen. A distal head is fixed to or otherwise mechanically coupled with the distal end of the ultrasound transmission member or wire and is positioned adjacent the distal end of the catheter body. Although the distal end of the catheter body overlaps the distal head, the distal head is not directly affixed to the distal end of the catheter body. Thus, the distal tip may move freely, relative to the distal end of the catheter body when ultrasonic energy is applied through the ultrasound transmission member.Type: ApplicationFiled: April 14, 2016Publication date: August 25, 2016Inventors: Henry Nita, Jeff Sarge, Martinos Tran, Simon Nguyen
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Patent number: 9314258Abstract: Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, an ultrasound catheter includes an elongate flexible catheter body with one or more lumens. An ultrasound transmission member or wire extends longitudinally through the catheter body lumen and, in many embodiments, a guide wire tube also extends through the same lumen. A distal head is fixed to or otherwise mechanically coupled with the distal end of the ultrasound transmission member or wire and is positioned adjacent the distal end of the catheter body. Although the distal end of the catheter body overlaps the distal head, the distal head is not directly affixed to the distal end of the catheter body. Thus, the distal tip may move freely, relative to the distal end of the catheter body when ultrasonic energy is applied through the ultrasound transmission member.Type: GrantFiled: April 3, 2014Date of Patent: April 19, 2016Assignee: FLOWCARDIA, INC.Inventors: Henry Nita, Jeff Sarge, Martinos Tran, Simon Nguyen
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Publication number: 20150150571Abstract: Ultrasound catheter devices and methods of the present invention generally provide for ablation and/or disruption of vascular occlusions. An ultrasound transmission member, such as a wire, transmits vibrational energy from an ultrasound transducer to a distal head of the catheter to disrupt vascular occlusions. An absorber member is disposed on or around the ultrasound transmission wire at a location adjacent the sonic connector of the catheter. The absorber member absorbs heat, vibrations, and/or the like from the ultrasound transmission wire at or near the area where the transmission wire is coupled with the sonic connector. The absorptive function typically slows the process of wear and tear on the transmission wire, thus extending the useful life of the ultrasound catheter.Type: ApplicationFiled: February 6, 2015Publication date: June 4, 2015Inventors: Henry Nita, Jeff Sarge, Simon Nguyen
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Patent number: 8961423Abstract: Ultrasound catheter devices and methods of the present invention generally provide for ablation and/or disruption of vascular occlusions. An ultrasound transmission member, such as a wire, transmits vibrational energy from an ultrasound transducer to a distal head of the catheter to disrupt vascular occlusions. An absorber member is disposed on or around the ultrasound transmission wire at a location adjacent the sonic connector of the catheter. The absorber member absorbs heat, vibrations, and/or the like from the ultrasound transmission wire at or near the area where the transmission wire is coupled with the sonic connector. The absorptive function typically slows the process of wear and tear on the transmission wire, thus extending the useful life of the ultrasound catheter.Type: GrantFiled: October 1, 2009Date of Patent: February 24, 2015Assignee: Flowcardia, Inc.Inventors: Henry Nita, Jeff Sarge, Simon Nguyen
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Patent number: 8956375Abstract: Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, ultrasound catheters include an elongate flexible catheter body with one or more lumens, an ultrasound transmission member extending longitudinally through the catheter body lumen and a distal head coupled with the transmission member and positioned adjacent the distal end of the catheter body for disrupting occlusions. Improved features of ultrasound catheters include prevention of independent rotation of the ultrasound transmission member, a safety anchor for the distal head, a one-piece transmission member/distal head and the like.Type: GrantFiled: September 23, 2011Date of Patent: February 17, 2015Assignee: Flowcardia, Inc.Inventors: Henry Nita, Jeff Sarge, Simon Nguyen, Richard Spano
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Publication number: 20150025544Abstract: Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, ultrasound catheters include an elongate flexible catheter body with one or more lumens, an ultrasound transmission member extending longitudinally through the catheter body lumen and, in some embodiments, a guidewire tube extending through the lumen. A distal head for disrupting occlusions is coupled with the distal end of the ultrasound transmission member and is positioned adjacent the distal end of the catheter body. Some embodiments include improved features such as a bend in the catheter body for enhancing positioning and/or advancement of the catheter.Type: ApplicationFiled: August 4, 2014Publication date: January 22, 2015Inventors: Henry Nita, Jeff Sarge, Simon Nguyen
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Publication number: 20150025543Abstract: Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, ultrasound catheters include an elongate flexible catheter body with one or more lumens, an ultrasound transmission member extending longitudinally through the catheter body lumen and, in some embodiments, a guidewire tube extending through the lumen. A distal head for disrupting occlusions is coupled with the distal end of the ultrasound transmission member and is positioned adjacent the distal end of the catheter body. Some embodiments include improved features such as a bend in the catheter body for enhancing positioning and/or advancement of the catheter.Type: ApplicationFiled: August 4, 2014Publication date: January 22, 2015Inventors: Henry Nita, Jeff Sarge, Simon Nguyen
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Publication number: 20140214064Abstract: Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, an ultrasound catheter includes an elongate flexible catheter body with one or more lumens. An ultrasound transmission member or wire extends longitudinally through the catheter body lumen and, in many embodiments, a guide wire tube also extends through the same lumen. A distal head is fixed to or otherwise mechanically coupled with the distal end of the ultrasound transmission member or wire and is positioned adjacent the distal end of the catheter body. Although the distal end of the catheter body overlaps the distal head, the distal head is not directly affixed to the distal end of the catheter body. Thus, the distal tip may move freely, relative to the distal end of the catheter body when ultrasonic energy is applied through the ultrasound transmission member.Type: ApplicationFiled: April 3, 2014Publication date: July 31, 2014Applicant: FLOWCARDIA, INC.Inventors: Henry Nita, Jeff Sarge, Martinos Tran, Simon Nguyen
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Patent number: 8690819Abstract: Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, an ultrasound catheter includes an elongate flexible catheter body with one or more lumens. An ultrasound transmission member or wire extends longitudinally through the catheter body lumen and, in many embodiments, a guide wire tube also extends through the same lumen. A distal head is fixed to or otherwise mechanically coupled with the distal end of the ultrasound transmission member or wire and is positioned adjacent the distal end of the catheter body. Although the distal end of the catheter body overlaps the distal head, the distal head is not directly affixed to the distal end of the catheter body. Thus, the distal tip may move freely, relative to the distal end of the catheter body when ultrasonic energy is applied through the ultrasound transmission member.Type: GrantFiled: November 9, 2012Date of Patent: April 8, 2014Assignee: Flowcardia, Inc.Inventors: Henry Nita, Jeff Sarge, Martinos Tran, Simon Nguyen
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Patent number: 8496669Abstract: An ultrasound catheter has an elongate flexible catheter body having a lumen extending longitudinally therethrough, and an ultrasound transmission member extending longitudinally through the lumen of the catheter body. The ultrasound transmission member has a proximal end that is coupled to a separate ultrasound generating device, and a distal tip that is attached to the distal end of the ultrasound transmission member and which is located at the distal end of the catheter body. The ultrasound transmission member is directly attached to the catheter body and/or to a guidewire tube either directly or via an attachment device. The catheter has an additional radiopaque marker positioned on the distal end the catheter.Type: GrantFiled: December 21, 2007Date of Patent: July 30, 2013Assignee: FlowCardia, Inc.Inventors: Henry Nita, Simon Nguyen
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Patent number: 8308677Abstract: Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, an ultrasound catheter includes an elongate flexible catheter body with one or more lumens. An ultrasound transmission member or wire extends longitudinally through the catheter body lumen and, in many embodiments, a guide wire tube also extends through the same lumen. A distal head is fixed to or otherwise mechanically coupled with the distal end of the ultrasound transmission member or wire and is positioned adjacent the distal end of the catheter body. Although the distal end of the catheter body overlaps the distal head, the distal head is not directly affixed to the distal end of the catheter body. Thus, the distal tip may move freely, relative to the distal end of the catheter body when ultrasonic energy is applied through the ultrasound transmission member.Type: GrantFiled: June 3, 2011Date of Patent: November 13, 2012Assignee: Flowcardia, Inc.Inventors: Henry Nita, Jeff Sarge, Martinos Tran, Simon Nguyen