Patents by Inventor Pham LO
Pham LO 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: 20220054266Abstract: Heart valve prosthesis are disclosed that include a frame or support structure having an inflow portion, a valve-retaining tubular or central portion and a pair of support arms. The inflow portion radially extends from a first end of the valve-retaining tubular portion and the pair of support arms are circumferentially spaced apart and radially extend from an opposing second end of the valve-retaining tubular portion.Type: ApplicationFiled: September 2, 2021Publication date: February 24, 2022Inventors: Igor KOVALSKY, Cathleen BERGIN, Marian CREAVEN, Joshua DWORK, Kshitija GARDE, Daniel GLOZMAN, Ilia HARITON, Pham LO, Jason QUILL, Jeffrey SANDSTROM, Padraig SAVAGE, Michael SCHENDEL, Elizabeth SCHOTZKO, Yossi TUVAL, Nadav YELLIN
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Patent number: 10736740Abstract: A heart valve assembly has a frame comprising an anchoring section, a generally cylindrical leaflet support section, and a neck section that transitions between the anchoring section and the valve support section. The anchoring section has a ball-shaped configuration defined by a plurality of wires that extend from the leaflet support section, with each wire extending radially outwardly to a vertex area where the diameter of the anchoring section is at its greatest, and then extending radially inwardly to a hub. A plurality of leaflets are stitched to the leaflet support section. The heart valve assembly is delivered to the location of a native pulmonary trunk, the vertex area of the anchoring section is deployed into the native pulmonary arteries such that the vertex area is retained in the pulmonary arteries, and then the leaflet support section is deployed in the pulmonary trunk.Type: GrantFiled: August 17, 2018Date of Patent: August 11, 2020Assignee: Venus Medtech (Hangzhou) Inc.Inventors: Min Frank Zeng, Pham Lo
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Patent number: 10543082Abstract: A heart valve assembly has a heart valve assembly that has a wire frame comprising an anchor section, a generally cylindrical valve support section, and a neck section that transitions between the anchor section and the valve support section. The wire frame includes a plurality of supports extending radially outwardly in an annular manner about an upper end of the valve support section, and the anchor section has an annular flange that extends radially therefrom, so that an annular space is defined between the annular flange and the annular supports for receiving or capturing the native annulus when the heart valve is deployed. The heart valve assembly also includes a leaflet assembly having a plurality of leaflets that are stitched to the valve support section and which are positioned on an inflow side of the neck section.Type: GrantFiled: October 2, 2017Date of Patent: January 28, 2020Assignee: Venus Medtech (Hangzhou) Inc.Inventors: Min Frank Zeng, Pham Lo
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Patent number: 10206775Abstract: Heart valve prosthesis are disclosed that include a frame or support structure having an inflow portion, a valve-retaining tubular or central portion and a pair of support arms. The inflow portion radially extends from a first end of the valve-retaining tubular portion and the pair of support arms are circumferentially spaced apart and radially extend from an opposing second end of the valve-retaining tubular portion.Type: GrantFiled: February 7, 2014Date of Patent: February 19, 2019Assignee: MEDTRONIC, INC.Inventors: Igor Kovalsky, Kshitija Garde, Pham Lo, Jason Quill, Padraig Savage
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Publication number: 20190000616Abstract: A heart valve assembly has a frame comprising an anchoring section, a generally cylindrical leaflet support section, and a neck section that transitions between the anchoring section and the valve support section. The anchoring section has a ball-shaped configuration defined by a plurality of wires that extend from the leaflet support section, with each wire extending radially outwardly to a vertex area where the diameter of the anchoring section is at its greatest, and then extending radially inwardly to a hub. A plurality of leaflets are stitched to the leaflet support section. The heart valve assembly is delivered to the location of a native pulmonary trunk, the vertex area of the anchoring section is deployed into the native pulmonary arteries such that the vertex area is retained in the pulmonary arteries, and then the leaflet support section is deployed in the pulmonary trunk.Type: ApplicationFiled: August 17, 2018Publication date: January 3, 2019Applicant: VENUS MEDTECH (HANGZHOU), INC.Inventors: Min Frank Zeng, Pham Lo
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Patent number: 10052202Abstract: A heart valve assembly has a frame comprising an anchoring section, a generally cylindrical leaflet support section, and a neck section that transitions between the anchoring section and the valve support section. The anchoring section has a ball-shaped configuration defined by a plurality of wires that extend from the leaflet support section, with each wire extending radially outwardly to a vertex area where the diameter of the anchoring section is at its greatest, and then extending radially inwardly to a hub. A plurality of leaflets are stitched to the leaflet support section. The heart valve assembly is delivered to the location of a native pulmonary trunk, the vertex area of the anchoring section is deployed into the native pulmonary arteries such that the vertex area is retained in the pulmonary arteries, and then the leaflet support section is deployed in the pulmonary trunk.Type: GrantFiled: December 13, 2016Date of Patent: August 21, 2018Assignee: Venus Medtech (Hangzhou) IncInventors: Min Frank Zeng, Pham Lo
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Publication number: 20180221145Abstract: Heart valve prostheses are provided having a self-expanding frame that supports a valve body comprising a skirt and a plurality of coapting leaflets. The leaflets are constructed with four commissure points to reduce the stress and strain applied to the commissure points and to efficiently distribute and transmit forces along the leaflets and to the frame.Type: ApplicationFiled: April 4, 2018Publication date: August 9, 2018Inventors: Carol Eberhardt, Tomas McNatt, Pham Lo
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Patent number: 9937035Abstract: Heart valve prostheses are provided having a self-expanding frame that supports a valve body comprising a skirt and a plurality of coapting leaflets. The leaflets are constructed with four commissure points to reduce the stress and strain applied to the commissure points and to efficiently distribute and transmit forces along the leaflets and to the frame.Type: GrantFiled: July 14, 2015Date of Patent: April 10, 2018Assignee: MEDTRONIC CV LUXEMBOURG S.A.R.L.Inventors: Carol Eberhardt, Tomas McNatt, Pham Lo
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Patent number: 9895220Abstract: A heart valve assembly has a leaflet support structure and a leaflet assembly. The leaflet support structure has a wire frame that supports the leaflet assembly. The leaflet assembly has first and second separate leaflets, each of which is comprised of a skirt section and a sinus leaflet section. Each skirt section has a flange portion and a body portion that has a smaller diameter than the flange portion, with the body portion having opposing side edges, and a curved opening defined by a first stitching edge at about the central portion of the body portion. Each sinus leaflet section has an outflow edge, and a curved second stitching edge, with the sinus leaflet section stitched to the skirt section along the first and second stitching edges. The opposing side edges of the body portion of the first leaflet are stitched to the corresponding side edges of the body portion of the second leaflet.Type: GrantFiled: February 7, 2017Date of Patent: February 20, 2018Assignee: Venus Medtech (Hangzhou) Inc.Inventors: Min Frank Zeng, Pham Lo
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Patent number: 9895222Abstract: A heart valve assembly has a frame comprising an inflow section, an outflow section, and a connecting section that is located between the inflow section and the outflow section. The inflow section has a plurality of legs that extend radially outwardly, and the connecting section has a greater flexibility than the inner section. The assembly also includes a plurality of leaflets coupled to the connecting section, a valve skirt extending from the leaflets towards the inflow section of the frame, and a cuff section, with the legs and the cuff section together defining a cuff for engagement with a native annulus.Type: GrantFiled: August 17, 2015Date of Patent: February 20, 2018Assignee: Venus Medtech (Hangzhou) Inc.Inventors: Min Frank Zeng, Pham Lo
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Publication number: 20180021131Abstract: A heart valve assembly has a heart valve assembly that has a wire frame comprising an anchor section, a generally cylindrical valve support section, and a neck section that transitions between the anchor section and the valve support section. The wire frame includes a plurality of supports extending radially outwardly in an annular manner about an upper end of the valve support section, and the anchor section has an annular flange that extends radially therefrom, so that an annular space is defined between the annular flange and the annular supports for receiving or capturing the native annulus when the heart valve is deployed. The heart valve assembly also includes a leaflet assembly having a plurality of leaflets that are stitched to the valve support section and which are positioned on an inflow side of the neck section.Type: ApplicationFiled: October 2, 2017Publication date: January 25, 2018Applicant: Venus Medtech (Hangzhou) Inc.Inventors: Min Frank Zeng, Pham Lo
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Patent number: 9872765Abstract: A heart valve assembly has a frame having an anchoring section defined by a plurality of rows of cells, with each cell defined by a plurality of struts that encircle each cell, and a pair of legs extending from the anchoring section. The assembly also includes a leaflet assembly that has a plurality of leaflets that are stitched to the legs. The heart valve assembly is delivered to the location of a native mitral annulus, and the anchoring section is deployed inside the left atrium such that the anchoring section is completely retained in the left atrium, and the legs and leaflets extend through the native mitral annulus.Type: GrantFiled: October 12, 2015Date of Patent: January 23, 2018Assignee: Venus Medtech (Hangzhou) IncInventors: Min Frank Zeng, Pham Lo
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Patent number: 9782256Abstract: A heart valve assembly has a heart valve assembly that has an anchor section, a generally cylindrical valve support section, and a neck section that transitions between the anchor section and the valve support section. A plurality of supports extend radially outwardly in an annular manner about an upper end of the valve support section, and the anchor section has an annular flange that extends radially therefrom, so that an annular space is defined between the annular flange and the annular supports for receiving or capturing the native annulus when the heart valve is deployed. The heart valve assembly also includes a leaflet assembly having a plurality of leaflets that are stitched to the valve support section and which are positioned on an inflow side of the neck section.Type: GrantFiled: April 27, 2015Date of Patent: October 10, 2017Assignee: Venus Medtech (Hangzhou) IncInventors: Min Frank Zeng, Pham Lo
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Publication number: 20170143486Abstract: A heart valve assembly has a leaflet support structure and a leaflet assembly. The leaflet support structure has a wire frame that supports the leaflet assembly. The leaflet assembly has first and second separate leaflets, each of which is comprised of a skirt section and a sinus leaflet section. Each skirt section has a flange portion and a body portion that has a smaller diameter than the flange portion, with the body portion having opposing side edges, and a curved opening defined by a first stitching edge at about the central portion of the body portion. Each sinus leaflet section has an outflow edge, and a curved second stitching edge, with the sinus leaflet section stitched to the skirt section along the first and second stitching edges. The opposing side edges of the body portion of the first leaflet are stitched to the corresponding side edges of the body portion of the second leaflet.Type: ApplicationFiled: February 7, 2017Publication date: May 25, 2017Applicant: Horizon Scientific Corp.Inventors: Min Frank Zeng, Pham Lo
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Publication number: 20170100240Abstract: A heart valve assembly has a frame having an anchoring section defined by a plurality of rows of cells, with each cell defined by a plurality of struts that encircle each cell, and a pair of legs extending from the anchoring section. The assembly also includes a leaflet assembly that has a plurality of leaflets that are stitched to the legs. The heart valve assembly is delivered to the location of a native mitral annulus, and the anchoring section is deployed inside the left atrium such that the anchoring section is completely retained in the left atrium, and the legs and leaflets extend through the native mitral annulus.Type: ApplicationFiled: October 12, 2015Publication date: April 13, 2017Applicant: Horizon Scientific Corp.Inventors: Min Frank Zeng, Pham Lo
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Publication number: 20170086973Abstract: A heart valve assembly has a frame comprising an anchoring section, a generally cylindrical leaflet support section, and a neck section that transitions between the anchoring section and the valve support section. The anchoring section has a ball-shaped configuration defined by a plurality of wires that extend from the leaflet support section, with each wire extending radially outwardly to a vertex area where the diameter of the anchoring section is at its greatest, and then extending radially inwardly to a hub. A plurality of leaflets are stitched to the leaflet support section. The heart valve assembly is delivered to the location of a native pulmonary trunk, the vertex area of the anchoring section is deployed into the native pulmonary arteries such that the vertex area is retained in the pulmonary arteries, and then the leaflet support section is deployed in the pulmonary trunk.Type: ApplicationFiled: December 13, 2016Publication date: March 30, 2017Applicant: Horizon Scientific Corp.Inventors: Min Frank Zeng, Pham Lo
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Patent number: 9579195Abstract: A heart valve assembly has a leaflet support structure and a leaflet assembly. The leaflet support structure has a wire frame that supports the leaflet assembly. The leaflet assembly has first and second separate leaflets, each of which is comprised of a skirt section and a sinus leaflet section. Each skirt section has a flange portion and a body portion that has a smaller diameter than the flange portion, with the body portion having opposing side edges, and a curved opening defined by a first stitching edge at about the central portion of the body portion. Each sinus leaflet section has an outflow edge, and a curved second stitching edge, with the sinus leaflet section stitched to the skirt section along the first and second stitching edges. The opposing side edges of the body portion of the first leaflet are stitched to the corresponding side edges of the body portion of the second leaflet.Type: GrantFiled: January 13, 2015Date of Patent: February 28, 2017Assignee: Horizon Scientific Corp.Inventors: Min Frank Zeng, Pham Lo
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Publication number: 20170049566Abstract: A heart valve assembly has a frame comprising an inflow section, an outflow section, and a connecting section that is located between the inflow section and the outflow section. The inflow section has a plurality of legs that extend radially outwardly, and the connecting section has a greater flexibility than the inner section. The assembly also includes a plurality of leaflets coupled to the connecting section, a valve skirt extending from the leaflets towards the inflow section of the frame, and a cuff section, with the legs and the cuff section together defining a cuff for engagement with a native annulus.Type: ApplicationFiled: August 17, 2015Publication date: February 23, 2017Applicant: Horizon Scientific Corp.Inventors: Min Frank Zeng, Pham Lo
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Publication number: 20160346081Abstract: A heart valve assembly has a frame comprising an anchoring section, a generally cylindrical leaflet support section, and a neck section that transitions between the anchoring section and the valve support section. The anchoring section has a ball-shaped configuration defined by a plurality of wires that extend from the leaflet support section, with each wire extending radially outwardly to a vertex area where the diameter of the anchoring section is at its greatest, and then extending radially inwardly to a hub. A plurality of leaflets are stitched to the leaflet support section. The heart valve assembly is delivered to the location of a native pulmonary trunk, the vertex area of the anchoring section is deployed into the native pulmonary arteries such that the vertex area is retained in the pulmonary arteries, and then the leaflet support section is deployed in the pulmonary trunk.Type: ApplicationFiled: May 25, 2015Publication date: December 1, 2016Applicant: HORIZON SCIENTIFIC CORP.Inventors: Min Frank Zeng, Pham Lo
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Publication number: 20160310267Abstract: A heart valve assembly has a heart valve assembly that has a wire frame comprising an anchor section, a generally cylindrical valve support section, and a neck section that transitions between the anchor section and the valve support section. The wire frame includes a plurality of supports extending radially outwardly in an annular manner about an upper end of the valve support section, and the anchor section has an annular flange that extends radially therefrom, so that an annular space is defined between the annular flange and the annular supports for receiving or capturing the native annulus when the heart valve is deployed. The heart valve assembly also includes a leaflet assembly having a plurality of leaflets that are stitched to the valve support section and which are positioned on an inflow side of the neck section.Type: ApplicationFiled: April 27, 2015Publication date: October 27, 2016Applicant: Horizon Scientific Corp.Inventors: Min Frank Zeng, Pham Lo