Patents by Inventor Victoria UNG
Victoria UNG 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: 11957560Abstract: An assembly includes a medical device having a stent and a prosthetic valve connected to the stent. The prosthetic valve includes valve leaflets. The assembly further includes a buffer piece having a leaflet cover and a removable attaching structure. The leaflet cover protects the valve leaflets and the removable attaching structure removably attaches the buffer piece to the medical device. The buffer piece prevents contact, imprinting, abrasion, and/or damage to the valve leaflets.Type: GrantFiled: December 8, 2021Date of Patent: April 16, 2024Assignee: Medtronic Vacular, Inc.Inventors: Thuy Linh Dinh, Alkindi Kibria, Victoria Ung, Veronica Woen, Priyanka Ganesh, Kshitija Garde
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Publication number: 20240100307Abstract: Methods for purging a balloon catheter of air. An inflation fluid is inserted into a balloon and an inflation lumen of a balloon catheter. The inflation lumen is in fluid communication with the balloon. The balloon catheter is positioned in an inverted orientation with a distal end thereof disposed below a proximal end thereof. The distal end of the balloon catheter includes a balloon. A vibration source is positioned in direct contact with an outer surface of the balloon catheter. The balloon catheter is vibrated via the vibration source. A vacuum is applied or pulled on the inflation lumen of the balloon catheter. The steps of vibrating the balloon catheter and applying the vacuum are performed simultaneously.Type: ApplicationFiled: December 7, 2023Publication date: March 28, 2024Inventors: Justin PETERSON, Victoria UNG
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Publication number: 20240041624Abstract: A crimper for altering an implantable medical device from an uncompressed state to a compressed state. The crimper includes a plurality of crimper elements that define a crimper channel, each of the crimper elements including a non-planar surface that forms a portion of the crimper channel. Each non-planar surface is configured to apply non-uniform radial compression along a length of the implantable medical device during operation of the crimper when altering the implantable medical device from the uncompressed state to the compressed state. The crimper also includes handle configured to operate the crimper. Actuation of the handle decreases a volume of the crimper chamber to transition the implantable medical device from the uncompressed state to the compressed state.Type: ApplicationFiled: October 18, 2023Publication date: February 8, 2024Inventors: James MITCHELL, Nathanael GLUCKLICH, Victoria UNG
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Patent number: 11878133Abstract: Methods for purging a balloon catheter of air. An inflation fluid is inserted into a balloon and an inflation lumen of a balloon catheter. The inflation lumen is in fluid communication with the balloon. The balloon catheter is positioned in an inverted orientation with a distal end thereof disposed below a proximal end thereof. The distal end of the balloon catheter includes a balloon. A vibration source is positioned in direct contact with an outer surface of the balloon catheter. The balloon catheter is vibrated via the vibration source. A vacuum is applied or pulled on the inflation lumen of the balloon catheter. The steps of vibrating the balloon catheter and applying the vacuum are performed simultaneously.Type: GrantFiled: July 28, 2020Date of Patent: January 23, 2024Assignee: MEDTRONIC, INC.Inventors: Justin Peterson, Victoria Ung
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Publication number: 20230172701Abstract: An assembly includes a medical device having a stent and a prosthetic valve connected to the stent. The prosthetic valve includes valve leaflets. The assembly further includes a buffer piece having a leaflet cover and a removable attaching structure. The leaflet cover protects the valve leaflets and the removable attaching structure removably attaches the buffer piece to the medical device. The buffer piece prevents contact, imprinting, abrasion, and/or damage to the valve leaflets.Type: ApplicationFiled: December 8, 2021Publication date: June 8, 2023Inventors: Alkindi Kibria, Thuy Linh Dinh, Victoria Ung, Veronica Woen, Priyanka Ganesh, Kshitija Garde
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Publication number: 20230141002Abstract: A leaflet folding accessory or tool configured for use with a crimper when radially compressing a transcatheter valve prosthesis into a crimped configuration for delivery within a vasculature. The crimping accessory is configured to apply or remove fluid to or from the at least one leaflet of the transcatheter valve prosthesis during the crimping process to prevent protrusion of the leaflets into the frame of the transcatheter valve prosthesis that may cause leaflet pinching and damage.Type: ApplicationFiled: October 17, 2022Publication date: May 11, 2023Inventors: Matthew ZIEBOL, Alkindi KIBRIA, Victoria UNG, Matthew GENOVESE, Yogesh DAREKAR, Matthew BALDWIN, Jason BOWE, Radhika BHARGAV
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Publication number: 20230139876Abstract: An assembly including a transcatheter valve prosthesis and a leaflet folding accessory configured for use when compressing the transcatheter valve prosthesis into the crimped configuration. The transcatheter valve prosthesis includes a frame and a prosthetic valve component including at least one leaflet disposed within and secured to the frame. The leaflet folding accessory includes a plurality of guide fingers. A leaflet contact portion of each guide finger is configured to be disposed radially within the frame and contact an inner surface of a leaflet of the at least one leaflet. During crimping of the transcatheter valve prosthesis, the plurality of guide fingers remain disposed radially within the frame such that the at least one leaflet preferentially folds around the plurality of guide fingers.Type: ApplicationFiled: September 30, 2022Publication date: May 4, 2023Inventors: Jason Bowe, Matthew Genovese, Victoria Ung, Jeffrey Sandstrom, Matthew Ziebol, Steven Claessens, Radhika Bhargav, Alkindi Kibria, Salvador O. Avelar, Brian Castelli
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Publication number: 20230123266Abstract: A catheter includes a handle with torqueing and steering mechanisms. The torqueing mechanism includes a rotatable nosecone and a bearing coupled to the nosecone to be rotatable therewith. The bearing is concentrically disposed over a shaft of the catheter. The steering mechanism includes a rack coupled to the bearing to be slideable therewith and a pull wire having a proximal end attached to the bearing and a distal end attached to a distal portion of the shaft. Rotation of the nosecone causes an entire length of the shaft to rotate and axial movement of the rack tensions the pull wire to bend the distal portion of the shaft. A valve relief component is slidingly disposed over the shaft and is configured to dock onto the handle when not in use.Type: ApplicationFiled: December 22, 2022Publication date: April 20, 2023Inventors: Brian CASTELLI, Ashley SPINK, William BERTHIAUME, William CHANG, Victoria UNG, James MITCHELL
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Publication number: 20220409860Abstract: A catheter includes a handle with torqueing and steering mechanisms. The torqueing mechanism includes a rotatable nosecone and a bearing coupled to the nosecone to be rotatable therewith. The bearing is concentrically disposed over a shaft of the catheter. The steering mechanism includes a rack coupled to the bearing to be slideable therewith and a pull wire having a proximal end attached to the bearing and a distal end attached to a distal portion of the shaft. Rotation of the nosecone causes an entire length of the shaft to rotate and axial movement of the rack tensions the pull wire to bend the distal portion of the shaft. A valve relief component is slidingly disposed over the shaft and is configured to dock onto the handle when not in use.Type: ApplicationFiled: August 29, 2022Publication date: December 29, 2022Inventors: Brian CASTELLI, Ashley SPINK, William BERTHIAUME, William CHANG, Victoria UNG, James MITCHELL
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Patent number: 11446470Abstract: A catheter includes a handle with torqueing and steering mechanisms. The torqueing mechanism includes a rotatable nosecone and a bearing coupled to the nosecone to be rotatable therewith. The bearing is concentrically disposed over a shaft of the catheter. The steering mechanism includes a rack coupled to the bearing to be slideable therewith and a pull wire having a proximal end attached to the bearing and a distal end attached to a distal portion of the shaft. Rotation of the nosecone causes an entire length of the shaft to rotate and axial movement of the rack tensions the pull wire to bend the distal portion of the shaft. A valve relief component is slidingly disposed over the shaft and is configured to dock onto the handle when not in use.Type: GrantFiled: June 22, 2020Date of Patent: September 20, 2022Assignee: MEDTRONIC, INC.Inventors: Brian Castelli, Ashley Spink, William Berthiaume, William Chang, Victoria Ung, James Mitchell
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Publication number: 20220273476Abstract: Novel tools and techniques are provided for implementing protection of at least one tissue layer of a medical device or implant during crimping of the medical device or implant. In various embodiments, an implant tissue protection tool may include an outer portion configured to surround one or more outer segments of at least one tissue layer of a medical device to be implanted into a body of a subject and at least one protrusion (which may be affixed to a surface of the outer portion) configured to minimize or prevent occurrence (or likelihood of occurrence) of the at least one tissue layer (in some cases, leaflet material, or the like) of the medical device passing through at least one opening defined by a frame structure of the medical device during crimping of the medical device by a crimping device in preparation for implantation into the body of the subject.Type: ApplicationFiled: February 9, 2022Publication date: September 1, 2022Inventors: Victoria Ung, James E. Mitchell, Kshitija P. Garde, Philip C. Leung, Justin R. Peterson, Priyanka Ganesh, Nirav P. Patel, Karl L. Olney, Veronica Woen
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Publication number: 20220087818Abstract: A system for assisting in loading an implantable medical device onto a delivery system includes a body having a first end, a second end, and a conduit extending from the first end to the second end. The body has an inner diameter that allows a distal portion of the delivery system to slidably move through the conduit. The body has an outer diameter that allows the body to be inserted into a central lumen of the implantable medical device.Type: ApplicationFiled: September 15, 2021Publication date: March 24, 2022Inventors: Victoria UNG, James E. MITCHELL, Nathanael J. GLUCKLICH
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Publication number: 20220054264Abstract: Balloon catheters for delivery of prosthetic hear valves is provided. The balloon catheters are configured to deploy a prosthetic heart valve through inflation. The balloon catheters are further configured with one or more retention bumpers to reduce or prevent migration of the prosthetic heart valve during delivery. Balloon catheters described herein are configured with substantially incompressible retention bumpers that promote longitudinal inflation fluid flow.Type: ApplicationFiled: August 19, 2021Publication date: February 24, 2022Inventors: Alan T. MCGUINN, Alistair COURTNEY, Amy L. COMAR, William BERTHIAUME, Conleth MULLEN, David F. LYDON, Declan SILKE, Dmitry SHEREMETIEV, Eoghan TWOHIG, Gavin KENNY, James HANNON, James MITCHELL, Jonathan G. MCCULLOUGH, Kevin NEWELL, Leonila RIVERA, Marc A. ANDERSON, Martha BARAJAS-TORRES, Matthew NORGROVE, Michael R. O'CONNOR, Micheal FALLON, Niall DUFFY, Padraig IRWIN, Padraigh JENNINGS, Reiss CONNOLLY, Richard CAHILL, Shane M. MARTIN, Simon HOGAN, Victoria UNG, William CHANG, Tamas Jager
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Publication number: 20220039979Abstract: A crimper for altering an implantable medical device from an uncompressed state to a compressed state. The crimper includes a plurality of crimper elements that define a crimper channel, each of the crimper elements including a non-planar surface that forms a portion of the crimper channel. Each non-planar surface is configured to apply non-uniform radial compression along a length of the implantable medical device during operation of the crimper when altering the implantable medical device from the uncompressed state to the compressed state. The crimper also includes handle configured to operate the crimper. Actuation of the handle decreases a volume of the crimper chamber to transition the implantable medical device from the uncompressed state to the compressed state.Type: ApplicationFiled: August 4, 2021Publication date: February 10, 2022Inventors: Brian CASTELLI, James MITCHELL, Nathanael GLUCKLICH, Victoria UNG
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Publication number: 20210275299Abstract: A transcatheter valve prosthesis includes a stent having a crimped configuration for delivery within a vasculature and an expanded configuration for deployment within a native heart valve. The stent includes at least one axial frame member. The transcatheter valve prosthesis includes at least one outflow marker positioned on the at least one axial frame member. The transcatheter heart valve prosthesis may include inflow markers positioned within the inflow portion of the stent. The transcatheter heart valve prosthesis may include two outflow markers disposed on axial frame members and being circumferentially and longtiduinally offset from each other. The markers are configured to aid in axial and circumferential aligned of the transcatheter heart valve prosthesis within a native heart valve.Type: ApplicationFiled: February 26, 2021Publication date: September 9, 2021Inventors: Justin R. PETERSON, Victoria UNG, James E. MITCHELL, Syed J. ASKARI, Shahnaz JAVANI, Genevieve E. FARRAR, Stuart E. KARI, Mark CASLEY, Ethan KORNGOLD
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Publication number: 20210100988Abstract: Methods for purging a balloon catheter of air. An inflation fluid is inserted into a balloon and an inflation lumen of a balloon catheter. The inflation lumen is in fluid communication with the balloon. The balloon catheter is positioned in an inverted orientation with a distal end thereof disposed below a proximal end thereof. The distal end of the balloon catheter includes a balloon. A vibration source is positioned in direct contact with an outer surface of the balloon catheter. The balloon catheter is vibrated via the vibration source. A vacuum is applied or pulled on the inflation lumen of the balloon catheter. The steps of vibrating the balloon catheter and applying the vacuum are performed simultaneously.Type: ApplicationFiled: July 28, 2020Publication date: April 8, 2021Inventors: Justin PETERSON, Victoria UNG
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Publication number: 20200398026Abstract: A catheter includes a handle with torquing and steering mechanisms. The torquing mechanism includes a rotatable nosecone and a bearing coupled to the nosecone to be rotatable therewith. The bearing is concentrically disposed over a shaft of the catheter and is configured to transmit a torque from the nosecone to the shaft when the nosecone is rotated. The steering mechanism includes a rack coupled to the bearing to be slideable therewith and a pull wire having a proximal end attached to the bearing and a distal end attached to a distal portion of the shaft. Rotation of the nosecone causes an entire length of the shaft to rotate and axial movement of the rack tensions the pull wire to bend the distal portion of the shaft. A valve relief component is slidingly disposed over the shaft and is configured to dock onto the handle when not in use.Type: ApplicationFiled: June 22, 2020Publication date: December 24, 2020Inventors: Brian CASTELLI, Ashley SPINK, William BERTHIAUME, William CHANG, Victoria UNG, James MITCHELL