Patents by Inventor Eric Soun-Sang Fung
Eric Soun-Sang Fung 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: 11931254Abstract: A low-profile prosthetic valve for treating a native valve includes a radially expandable frame having an expanded configuration and a collapsed configuration. The atrial end of the prosthetic valve forms a flared shape that engages an atrial surface of the native valve. The flare shape flares downward toward a ventricle of the native valve when initially expanded followed by inversion of the flared shape to form a tapered shape tapering toward the ventricle and flaring toward the atrium of the native valve when fully expanded. The prosthetic valve also has a plurality of prosthetic valve leaflets that open and close to control fluid flow through the prosthetic valve.Type: GrantFiled: March 14, 2022Date of Patent: March 19, 2024Assignee: Neovasc Tiara Inc.Inventors: Eric Soun-Sang Fung, Karen Tsoek-Ji Wong, Ephraim Ben-Abraham
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Publication number: 20230380965Abstract: A method of delivering a prosthetic valve to a native mitral valve of patient's heart may include providing a radially expandable prosthetic mitral valve which has an upstream atrial portion, a downstream ventricular portion and an annular region therebetween. A constraint is removed from the ventricular portion thereby allowing radial expansion of a ventricular portion. A first anchoring tab on the ventricular portion is radially expanded and an annular region is radially expanded. An atrial skirt on the atrial flange is radially expanded after radial expansion of the ventricular portion.Type: ApplicationFiled: July 17, 2023Publication date: November 30, 2023Inventors: Eric Soun-Sang Fung, Kathleen Hung, Karen Tsoek-Ji Wong, David Andrew Moffatt
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Patent number: 11779742Abstract: An introducer sheath includes an elongate shaft having a proximal end, a distal end and a lumen extending therebetween. An actuatable hemostasis valve in a hub is adjacent the proximal end of the elongate shaft and may be used to prevent blood from escaping from the elongate shaft. The introducer sheath may also have a a self-expanding funnel adjacent the distal end of the elongate shaft.Type: GrantFiled: May 20, 2020Date of Patent: October 10, 2023Assignee: Neovasc Tiara Inc.Inventors: Aaron J. Chalekian, Kellen Bodell, Eric Soun-Sang Fung, Karen Tsoek-Ji Wong
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Patent number: 11737872Abstract: A method of delivering a prosthetic valve to a native mitral valve of patient's heart may include providing a radially expandable prosthetic mitral valve which has an upstream atrial portion, a downstream ventricular portion and an annular region therebetween. A constraint is removed from the ventricular portion thereby allowing radial expansion of a ventricular portion. A first anchoring tab on the ventricular portion is radially expanded and an annular region is radially expanded. An atrial skirt on the atrial flange is radially expanded after radial expansion of the ventricular portion.Type: GrantFiled: November 8, 2019Date of Patent: August 29, 2023Assignee: Neovasc Tiara Inc.Inventors: Eric Soun-Sang Fung, Kathleen Hung, Karen Tsoek-Ji Wong, David Andrew Moffatt
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Publication number: 20230255769Abstract: A prosthetic valve may be used to repair a diseased or otherwise damaged heart valve such as the mitral valve. The prosthetic valve may include atraumatic anchor tabs which may be radiopaque or echogenic. A cinching mechanism may also be coupled to the prosthetic valve to control radial expansion of the prosthetic valve. The cinching mechanism may include a wire lasso or a belt. The prosthetic valve may include an expandable frame which has a reduced number of strut connection nodes to allow a lower profile collapsed configuration and tighter crimping. The commissure posts of the prosthetic valve may extend beyond an edge of the ventricular skirt portion of the device.Type: ApplicationFiled: February 9, 2023Publication date: August 17, 2023Inventors: Eric Soun-Sang Fung, Kathleen Hung, Karen Tsoek-Ji Wong, Aaron J. Chalekian, Connor Lucas Haberl, Anson Wai Chung Cheung, Kellen Bodell, Christopher Brodeur
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Publication number: 20230149164Abstract: A prosthesis delivery catheter has an inner distal capsule shaft and a distal capsule configured to house the prosthesis. An anchor catheter with an anchor hub is slidably disposed over the inner distal capsule shaft. An elbow catheter is slidably disposed over the anchor catheter, and a peg plate assembly is adjacent the anchor hub. The peg plate assembly has a plurality of protruding pegs and a plate which form a closed configuration with the pegs abutting the plate, and an open configuration where a gap is between the pegs and plate allowing release of a tether.Type: ApplicationFiled: November 16, 2022Publication date: May 18, 2023Inventors: Karen Tsoek-Ji Wong, Kellen Bodell, Aaron J. Chalekian, Eric Soun-Sang Fung, Kathleen Hung
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Publication number: 20230100125Abstract: A prosthetic valve may be formed to direct flow out of the outflow orifice toward a posterior portion of a heart wall. The prosthetic valve includes an expandable frame which may be covered with a cover that is suturelessly attached to the frame. The prosthetic valve may also include an outflow orifice size which is controlled. Methods of using these devices are also disclosed.Type: ApplicationFiled: October 4, 2022Publication date: March 30, 2023Inventors: Shmuel Banai, Kathleen Hung, Aaron J. Chalekian, Karen Tsoek-Ji Wong, Eric Soun-Sang Fung, Connor Lucas Haberl, David Andrew Moffatt
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Patent number: 11602429Abstract: A prosthetic valve may be used to repair a diseased or otherwise damaged heart valve such as the mitral valve. The prosthetic valve may include atraumatic anchor tabs which may be radiopaque or echogenic. A cinching mechanism may also be coupled to the prosthetic valve to control radial expansion of the prosthetic valve. The cinching mechanism may include a wire lasso or a belt. The prosthetic valve may include an expandable frame which has a reduced number of strut connection nodes to allow a lower profile collapsed configuration and tighter crimping. The commissure posts of the prosthetic valve may extend beyond an edge of the ventricular skirt portion of the device.Type: GrantFiled: April 1, 2020Date of Patent: March 14, 2023Assignee: Neovasc Tiara Inc.Inventors: Eric Soun-Sang Fung, Kathleen Hung, Karen Tsoek-Ji Wong, Aaron J. Chalekian, Connor Lucas Haberl, Anson Wai Chung Cheung, Kellen Bodell, Christopher Brodeur
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Patent number: 11497639Abstract: There is described an endovascular prosthesis delivery device. The subject endovascular prosthesis delivery device comprises a combination of a delivery frame element and a hub insert element that are secured to one another by a first retention element. At a distal portion of the delivery frame element, there is a prosthesis attachment zone for coupling to an endovascular prosthesis. When it is desired to deploy the endovascular prosthesis, the first retention element is broken in a manner to allow relative movement between the hub insert element and the delivery frame element. A pull wire assembly is secured with respect to the hub insert element and comprises a pull wire which is coupled to the endovascular prosthesis in the prosthesis attachment zone of the delivery frame element.Type: GrantFiled: September 29, 2017Date of Patent: November 15, 2022Inventors: Eric Soun-Sang Fung, Jonathan G. Tippett
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Patent number: 11491006Abstract: A prosthetic valve may be formed to direct flow out of the outflow orifice toward a posterior portion of a heart wall. The prosthetic valve includes an expandable frame which may be covered with a cover that is suturelessly attached to the frame. The prosthetic valve may also include an outflow orifice size which is controlled. Methods of using these devices are also disclosed.Type: GrantFiled: April 10, 2020Date of Patent: November 8, 2022Assignee: Neovasc Tiara Inc.Inventors: Shmuel Banai, Kathleen Hung, Aaron J. Chalekian, Karen Tsoek-Ji Wong, Eric Soun-Sang Fung, Connor Lucas Haberl, David Andrew Moffatt
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Publication number: 20220192826Abstract: A low-profile prosthetic valve for treating a native valve includes a radially expandable frame having an expanded configuration and a collapsed configuration. The atrial end of the prosthetic valve forms a flared shape that engages an atrial surface of the native valve. The flare shape flares downward toward a ventricle of the native valve when initially expanded followed by inversion of the flared shape to form a tapered shape tapering toward the ventricle and flaring toward the atrium of the native valve when fully expanded. The prosthetic valve also has a plurality of prosthetic valve leaflets that open and close to control fluid flow through the prosthetic valve.Type: ApplicationFiled: March 14, 2022Publication date: June 23, 2022Inventors: Eric Soun-Sang Fung, Karen Tsoek-Ji Wong, Ephraim Ben-Abraham
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Patent number: 11311376Abstract: A low-profile prosthetic valve for treating a native valve includes a radially expandable frame having an expanded configuration and a collapsed configuration. The atrial end of the prosthetic valve forms a flared shape that engages an atrial surface of the native valve. The flare shape flares downward toward a ventricle of the native valve when initially expanded followed by inversion of the flared shape to form a tapered shape tapering toward the ventricle and flaring toward the atrium of the native valve when fully expanded. The prosthetic valve also has a plurality of prosthetic valve leaflets that open and close to control fluid flow through the prosthetic valve.Type: GrantFiled: June 19, 2020Date of Patent: April 26, 2022Assignee: Neovase Tiara Inc.Inventors: Eric Soun-Sang Fung, Karen Tsoek-Ji Wong, Ephraim Ben-Abraham
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Publication number: 20210186721Abstract: In one of its aspects, the present invention relates to an endovascular prosthesis. The endovascular prosthesis includes a first expandable portion expandable from a first, unexpanded state to a second, expanded state to urge the first expandable portion against a vascular lumen and a retractable leaf portion attached to the first expandable portion. The retractable leaf portion comprises at least one spine portion and a plurality of rib portions attached to the spine portion. Longitudinally adjacent pairs of rib portions are free of interconnecting struts. The endovascular prosthesis that can be unsheathed and re-sheathed for repositioning of the endovascular prosthesis prior to final deployment thereof. There is also described a delivery device that that is particularly well suited to delivering the present endovascular prosthesis through tortuous vasculature in the body.Type: ApplicationFiled: March 8, 2021Publication date: June 24, 2021Inventors: JONATHAN G. TIPPETT, Eric Soun-Sang FUNG, Thomas R. MAROTTA, Ian T.B. MCDOUGALL, Ian M. PENN, Donald R. RICCI
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Patent number: 10987237Abstract: In one of its aspects, the present invention relates to an endovascular prosthesis. The endovascular prosthesis includes a first expandable portion expandable from a first, unexpanded state to a second, expanded state to urge the first expandable portion against a vascular lumen and a retractable leaf portion attached to the first expandable portion. The retractable leaf portion comprises at least one spine portion and a plurality of rib portions attached to the spine portion. Longitudinally adjacent pairs of rib portions are free of interconnecting struts. The endovascular prosthesis that can be unsheathed and re-sheathed for repositioning of the endovascular prosthesis prior to final deployment thereof. There is also described a delivery device that that is particularly well suited to delivering the present endovascular prosthesis through tortuous vasculature in the body.Type: GrantFiled: May 13, 2015Date of Patent: April 27, 2021Assignee: Evasc Neurovascular Enterprises ULCInventors: Jonathan G. Tippett, Eric Soun-Sang Fung, Thomas R. Marotta, Ian T. B. Mcdougall, Ian M. Penn, Donald R. Ricci
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Publication number: 20200397570Abstract: A low-profile prosthetic valve for treating a native valve includes a radially expandable frame having an expanded configuration and a collapsed configuration. The atrial end of the prosthetic valve forms a flared shape that engages an atrial surface of the native valve. The flare shape flares downward toward a ventricle of the native valve when initially expanded followed by inversion of the flared shape to form a tapered shape tapering toward the ventricle and flaring toward the atrium of the native valve when fully expanded. The prosthetic valve also has a plurality of prosthetic valve leaflets that open and close to control fluid flow through the prosthetic valve.Type: ApplicationFiled: June 19, 2020Publication date: December 24, 2020Inventors: Eric Soun-Sang Fung, Karen Tsoek-Ji Wong, Ephraim Ben-Abraham
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Publication number: 20200368514Abstract: An introducer sheath includes an elongate shaft having a proximal end, a distal end and a lumen extending therebetween. An actuatable hemostasis valve in a hub is adjacent the proximal end of the elongate shaft and may be used to prevent blood from escaping from the elongate shaft. The introducer sheath may also have a a self-expanding funnel adjacent the distal end of the elongate shaft.Type: ApplicationFiled: May 20, 2020Publication date: November 26, 2020Inventors: Aaron J. Chalekian, Kellen Bodell, Eric Soun-Sang Fung, Karen Tsoek-Ji Wong
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Publication number: 20200323637Abstract: A prosthetic valve may be formed to direct flow out of the outflow orifice toward a posterior portion of a heart wall. The prosthetic valve includes an expandable frame which may be covered with a cover that is suturelessly attached to the frame. The prosthetic valve may also include an outflow orifice size which is controlled. Methods of using these devices are also disclosed.Type: ApplicationFiled: April 10, 2020Publication date: October 15, 2020Inventors: Shmuel Banai, Kathleen Hung, Aaron J. Chalekian, Karen Tsoek-Ji Wong, Eric Soun-Sang Fung, Connor Lucas Haberl, David Andrew Moffatt
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Publication number: 20200306040Abstract: A prosthetic valve may be used to repair a diseased or otherwise damaged heart valve such as the mitral valve. The prosthetic valve may include atraumatic anchor tabs which may be radiopaque or echogenic. A cinching mechanism may also be coupled to the prosthetic valve to control radial expansion of the prosthetic valve. The cinching mechanism may include a wire lasso or a belt. The prosthetic valve may include an expandable frame which has a reduced number of strut connection nodes to allow a lower profile collapsed configuration and tighter crimping. The commissure posts of the prosthetic valve may extend beyond an edge of the ventricular skirt portion of the device.Type: ApplicationFiled: April 1, 2020Publication date: October 1, 2020Inventors: Eric Soun-Sang Fung, Kathleen Hung, Karen Tsoek-Ji Wong, Aaron J. Chalekian, Connor Lucas Haberl, Anson Wai Chung Cheung, Kellen Bodell, Christopher Brodeur
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Publication number: 20200281720Abstract: A prosthetic delivery system may include a plurality of concentric shafts and an actuator mechanism for actuating one or more of the concentric shafts. A stop mechanism may be coupled to the actuator mechanism. The stop mechanism prevents advancement or retraction of at least some of the shafts beyond a predetermined position unless the stop mechanism is released. A second stop mechanism may be included in the system for controlling another of the shafts. A plurality of filaments may be coupled to a prosthesis carried by the delivery system and actuation of the filaments may be used to control deployment or retrieval of the prosthesis.Type: ApplicationFiled: March 6, 2020Publication date: September 10, 2020Inventors: Keith Alan Jackson, Karen Tsoek-Ji Wong, Christopher Brodeur, Eric Soun-Sang Fung, Kellen Bodell, Fredericus Antonius Colen, Shmuel Banai, Juzer Banatwala
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Publication number: 20200146814Abstract: A method of delivering a prosthetic valve to a native mitral valve of patient's heart may include providing a radially expandable prosthetic mitral valve which has an upstream atrial portion, a downstream ventricular portion and an annular region therebetween. A constraint is removed from the ventricular portion thereby allowing radial expansion of a ventricular portion. A first anchoring tab on the ventricular portion is radially expanded and an annular region is radially expanded. An atrial skirt on the atrial flange is radially expanded after radial expansion of the ventricular portion.Type: ApplicationFiled: November 8, 2019Publication date: May 14, 2020Inventors: Eric Soun-Sang Fung, Kathleen Hung, Karen Tsoek-Ji Wong, David Andrew Moffatt