Patents by Inventor Karen Tsoek-Ji Wong
Karen Tsoek-Ji Wong 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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Publication number: 20230074473Abstract: Methods for the rapid retraction of trans-catheter heart valve delivery systems are provided. A rapid retraction trans-catheter heart valve delivery system comprises a catheter based delivery system. The delivery system has internal mechanisms that allow for the controlled deployment of a heart valve prosthesis, as well as mechanisms that allow for quickly closing the catheter once the heart valve prosthesis has been implanted. This rapid retraction ability allows for reduced procedural durations and thus reduced risk to the patient.Type: ApplicationFiled: September 2, 2022Publication date: March 9, 2023Inventors: Ian Fraser Kerr, Karen Tsoek-Ji Wong, Colin Alexander Nyuli, Randy Matthew Lane
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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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Patent number: 11464631Abstract: Methods for the rapid retraction of trans-catheter heart valve delivery systems are provided. A rapid retraction trans-catheter heart valve delivery system comprises a catheter based delivery system. The delivery system has internal mechanisms that allow for the controlled deployment of a heart valve prosthesis, as well as mechanisms that allow for quickly closing the catheter once the heart valve prosthesis has been implanted. This rapid retraction ability allows for reduced procedural durations and thus reduced risk to the patient.Type: GrantFiled: February 20, 2020Date of Patent: October 11, 2022Assignee: Neovasc Tiara Inc.Inventors: Ian Fraser Kerr, Karen Tsoek-Ji Wong, Colin Alexander Nyuli, Randy Matthew Lane
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Publication number: 20220257370Abstract: A prosthetic mitral valve may be anchored in a native mitral valve. The prosthetic mitral valve preferably has a large anterior prosthetic leaflet that spans the entire width of the native anterior leaflet and the anterior prosthetic leaflet moves away from left ventricular outflow tract during systole to create a clear unobstructed outflow path.Type: ApplicationFiled: May 9, 2022Publication date: August 18, 2022Inventors: Randy Matthew Lane, Karen Tsoek-Ji Wong, Ian Fraser Kerr, Mark Segal
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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: 11357622Abstract: A prosthetic mitral valve may be anchored in a native mitral valve. The prosthetic mitral valve preferably has a large anterior prosthetic leaflet that spans the entire width of the native anterior leaflet and the anterior prosthetic leaflet moves away from left ventricular outflow tract during systole to create a clear unobstructed outflow path.Type: GrantFiled: September 3, 2019Date of Patent: June 14, 2022Assignee: Neovase Tiara Inc.Inventors: Randy Matthew Lane, Karen Tsoek-Ji Wong, Ian Fraser Kerr, Mark Segal
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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: 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