Patents by Inventor Mark Chau
Mark Chau 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: 8926691Abstract: Embodiments of an apparatus for treating a deficient mitral valve include an expandable spacer configured for placement between the native leaflets of the mitral valve, the spacer anchorable to a wall of the ventricle. Methods and apparatus for delivering and implanting the prosthetic are also described.Type: GrantFiled: September 12, 2013Date of Patent: January 6, 2015Assignee: Edwards Lifesciences CorporationInventors: Mark Chau, Marlowe E. Patterson, Seung-Beom Yi, Stephen C. Geist, Travis Oba
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Publication number: 20140228946Abstract: Embodiments of an apparatus for treating a deficient mitral valve include an expandable spacer configured for placement between the native leaflets of the mitral valve, the spacer anchorable to a wall of the ventricle. Methods and apparatus for delivering and implanting the prosthetic are also described.Type: ApplicationFiled: April 17, 2014Publication date: August 14, 2014Applicant: EDWARDS LIFESCIENCES CORPORATIONInventors: Mark Chau, Marlowe E. Patterson, Seung-Beom Yi, Stephen C. Geist, Travis Oba
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Publication number: 20140222136Abstract: Embodiments of prosthetic valves for implantation within a native mitral valve are provided. One embodiment of a prosthetic valve includes a radially compressible main body and a one-way valve member. In some cases, the prosthetic valves also include ventricular anchors and/or an atrial portion coupled to and disposed outside of the main body. Methods, devices, and systems for delivering such prosthetic valves to the native mitral valve and implanting them therein are also provided.Type: ApplicationFiled: February 3, 2014Publication date: August 7, 2014Applicant: EDWARDS LIFESCIENCES CORPORATIONInventors: Stephen C. Geist, Robert C. Taft, Travis Oba, Sam Sok, Matthew A. Peterson, Kevin M. Golemo, Mark Chau, Seung-Beom Yi
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Patent number: 8753373Abstract: A clip for securing suture to tissue includes a generally tubular body, with at least one bend area along the length of the generally tubular body and one or more tabs cut from the wall of the generally tubular body. The clip in the open configuration is generally straight along the length of the generally tubular body, and the tabs are in general alignment with the tab out wall. The tab in a closed configuration assumes a shape having at least one bend along its length, and the tabs are bent or otherwise positioned to extend into and at least partially obstruct the inner lumen. The clip can be formed from memory material such as nitinol, and the clip may be biased toward its closed configuration.Type: GrantFiled: May 8, 2007Date of Patent: June 17, 2014Assignee: Edwards Lifesciences CorporationInventors: Mark Chau, Kevin Golemo
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Patent number: 8696742Abstract: A quick-connect heart valve prosthesis that can be quickly and easily implanted is provided. The heart valve includes a substantially non-expandable, non-compressible prosthetic valve and a plastically-expandable coupling stent, thereby enabling attachment to the annulus without sutures. A small number of guide sutures may be provided for aortic valve orientation. The prosthetic valve may be a commercially available valve with a sewing ring with the coupling stent attached thereto. The coupling stent may expand from a conical deployment shape to a conical expanded shape, and may include web-like struts connected between axially-extending posts. A system and method for deployment includes a hollow two-piece handle through which a balloon catheter passes. A valve holder is stored with the heart valve and the handle easily attaches thereto to improve valve preparation steps.Type: GrantFiled: October 10, 2012Date of Patent: April 15, 2014Assignee: Edwards Lifesciences CorporationInventors: Rafael Pintor, Mark Chau, Travis Oba, August R. Yambao, Louis A. Campbell, Tammy Huntley, Qinggang Zeng, Carey L. Cristea, Faisal Kalam
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Publication number: 20140081389Abstract: A system for expanding a device in a conduit or orifice of a human body includes an expansion device that is movable from a first configuration to a second configuration. External surfaces of the expansion device can collectively have a non-cylindrical cross-section relative to a main axis of the expansion device, such that the external surfaces of the expansion device generally conform to the anatomical shape of the conduit or orifice when the expansion device is in the second configuration.Type: ApplicationFiled: November 25, 2013Publication date: March 20, 2014Applicant: EDWARDS LIFESCIENCES CORPORATIONInventors: Mark Chau, Travis Oba, Tammy Huntley, Qinggang Zeng, August R. Yambao, Rafael Pintor
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Publication number: 20140067048Abstract: This disclosure pertains generally to prosthetic devices and related methods for helping to seal native heart valves and prevent or reduce regurgitation therethrough, as well as devices and related methods for implanting such prosthetic devices. In some cases, a spacer having a single anchor can be implanted within a native heart valve. In some cases, a spacer having dual anchors can be implanted within a native heart valve. In some cases, devices can be used to extend the effective length of a native heart valve leaflet.Type: ApplicationFiled: August 27, 2013Publication date: March 6, 2014Applicant: Edwards Lifesciences CorporationInventors: Mark Chau, Travis Oba, Sergio Delgado, Robert C. Taft
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Publication number: 20140067052Abstract: This disclosure pertains generally to prosthetic devices and related methods for helping to seal native heart valves and prevent or reduce regurgitation therethrough, as well as devices and related methods for implanting such prosthetic devices. In some cases, a spacer having a single anchor can be implanted within a native heart valve. In some cases, a spacer having dual anchors can be implanted within a native heart valve. In some cases, devices can be used to extend the effective length of a native heart valve leaflet.Type: ApplicationFiled: September 5, 2013Publication date: March 6, 2014Applicant: Edwards Lifesciences CorporationInventors: Mark Chau, Travis Oba, Sergio Delgado, Robert C. Taft
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Publication number: 20140067054Abstract: This disclosure pertains generally to prosthetic devices and related methods for helping to seal native heart valves and prevent or reduce regurgitation therethrough, as well as devices and related methods for implanting such prosthetic devices. In some cases, a spacer having a single anchor can be implanted within a native heart valve. In some cases, a spacer having dual anchors can be implanted within a native heart valve. In some cases, devices can be used to extend the effective length of a native heart valve leaflet.Type: ApplicationFiled: August 27, 2013Publication date: March 6, 2014Applicant: Edwards Lifesciences CorporationInventors: Mark Chau, Travis Oba, Sergio Delgado, Robert C. Taft, Stanton J. Rowe, Alexander H. Cooper
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Publication number: 20140012372Abstract: Embodiments of an apparatus for treating a deficient mitral valve include an expandable spacer configured for placement between the native leaflets of the mitral valve, the spacer anchorable to a wall of the ventricle. Methods and apparatus for delivering and implanting the prosthetic are also described.Type: ApplicationFiled: September 12, 2013Publication date: January 9, 2014Applicant: Edwards Lifesciences CorporationInventors: Mark Chau, Marlowe E. Patterson, Seung-Beom Yi, Stephen C. Geist, Travis Oba
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Publication number: 20140012373Abstract: Embodiments of a method for implanting a prosthetic valve at the native mitral valve region of the heart, the prosthetic valve including a main body that is radially compressible to a radially compressed state and self-expandable from the compressed state to a radially expanded state. The prosthetic apparatus also comprises at least one ventricular anchor coupled to the main body and disposed outside of the main body with a leaflet-receiving space between the anchor and an outer surface of the main body to receive a native valve leaflet. Apparatus for delivering and implanting the prosthetic valve are also described.Type: ApplicationFiled: September 12, 2013Publication date: January 9, 2014Applicant: Edwards Lifesciences CorporationInventors: Mark Chau, Marlowe E. Patterson, Seung-Beom Yi, Stephen C. Geist, Travis Oba, David L. Hauser
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Patent number: 8591567Abstract: A system for expanding a device in a conduit or orifice of a human body includes an expansion device that is movable from a first configuration to a second configuration. External surfaces of the expansion device can collectively have a non-cylindrical cross-section relative to a main axis of the expansion device, such that the external surfaces of the expansion device generally conform to the anatomical shape of the conduit or orifice when the expansion device is in the second configuration.Type: GrantFiled: November 13, 2009Date of Patent: November 26, 2013Assignee: Edwards Lifesciences CorporationInventors: Mark Chau, Travis Oba, Tammy Huntley, Qinggang Zeng, August Yambao, Rafael Pintor
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Patent number: 8585755Abstract: Embodiments of prosthetics configured for implanting in at the native mitral valve region of the heart include a main body that is radially compressible to a radially compressed state and self-expandable from the compressed state to a radially expanded state. The prosthetic apparatus also comprises at least one ventricular anchor coupled to the main body and disposed outside of the main body with a leaflet-receiving space between the anchor and an outer surface of the main body to receive a native valve leaflet. Methods and apparatus for delivering and implanting the prosthetic valve are also described.Type: GrantFiled: August 28, 2012Date of Patent: November 19, 2013Assignee: Edwards Lifesciences CorporationInventors: Mark Chau, Marlowe E. Patterson, Seung-Beom Yi, Stephen C. Geist, Travis Zenyo Oba
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Patent number: 8449599Abstract: Embodiments of prosthetic valves for implantation within a native mitral valve are provided. A preferred embodiment of a prosthetic valve includes a radially compressible main body and a one-way valve portion. The prosthetic valve further comprises at least one ventricular anchor coupled to the main body and disposed outside of the main body. A space is provided between an outer surface of the main body and the ventricular anchor for receiving a native mitral valve leaflet. The prosthetic valve preferably includes an atrial sealing member adapted for placement above the annulus of the mitral valve. Methods and devices for delivering and implanting the prosthetic valve are also described.Type: GrantFiled: December 2, 2010Date of Patent: May 28, 2013Assignee: Edwards Lifesciences CorporationInventors: Mark Chau, Marlowe Patterson, Seung Yi, Steve Geist, Travis Oba
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Patent number: 8348998Abstract: A quick-connect heart valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The heart valve includes a substantially non-expandable, non-compressible prosthetic valve and a plastically-expandable coupling stent, thereby enabling attachment to the annulus without sutures. A small number of guide sutures may be provided for aortic valve orientation. The prosthetic valve may be a commercially available valve with a sewing ring with the coupling stent attached thereto. The coupling stent may expand from a conical deployment shape to a conical expanded shape, and may include web-like struts connected between axially-extending posts. A system and method for deployment includes a hollow two-piece handle through which a balloon catheter passes. A valve holder is stored with the heart valve and the handle easily attaches thereto to improve valve preparation steps.Type: GrantFiled: June 23, 2010Date of Patent: January 8, 2013Assignee: Edwards Lifesciences CorporationInventors: Rafael Pintor, Mark Chau, Travis Oba, August Yambao, Louis A. Campbell, Tammy Huntley, Qinggang Zeng, Carey Cristea, Faisal Kalam
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Publication number: 20120323316Abstract: Embodiments of prosthetics configured for implanting in at the native mitral valve region of the heart include a main body that is radially compressible to a radially compressed state and self-expandable from the compressed state to a radially expanded state. The prosthetic apparatus also comprises at least one ventricular anchor coupled to the main body and disposed outside of the main body with a leaflet-receiving space between the anchor and an outer surface of the main body to receive a native valve leaflet. Methods and apparatus for delivering and implanting the prosthetic valve are also described.Type: ApplicationFiled: August 28, 2012Publication date: December 20, 2012Applicant: Edwards Lifesciences CorporationInventors: Mark Chau, Marlowe E. Patterson, Seung Yi, Steve Geist, Travis Oba
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Patent number: 8308798Abstract: A heart valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The prosthetic valve has a base stent that is deployed at a treatment site, and a valve component configured to quickly connect to the base stent. The base stent may take the form of a self- or balloon-expandable stent that expands outward against the native valve with or without leaflet excision. The valve component has a non-expandable prosthetic valve and a self- or balloon-expandable coupling stent for attachment to the base stent, thereby fixing the position of the valve component relative to the base stent. The prosthetic valve may be a commercially available to valve with a sewing ring and the coupling stent attaches to the sewing ring. The system is particularly suited for rapid deployment of heart valves in a conventional open-heart surgical environment. A catheter-based system and method for deployment is provided.Type: GrantFiled: December 10, 2009Date of Patent: November 13, 2012Assignee: Edwards Lifesciences CorporationInventors: Rafael Pintor, Mark Chau, Travis Oba, August Yambao, Louis Campbell, Tammy Huntley, Qinggang Zeng, Carey Cristea, Faisal Kalam
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Patent number: 8252051Abstract: A method of implanting a prosthetic mitral valve assembly is disclosed. The prosthetic mitral valve assembly includes a stent and valve combination. The prosthetic mitral valve assembly is provided with an anchoring portion adapted to be positioned in the left atrium. In one embodiment, the anchoring portion includes at least one anchoring arm sized for placement in a pulmonary vein. The stent is radially expandable so that it can expand into position against the walls of the left atrium and accommodate a wide range of anatomies. Contact between the stent and the native tissue in the left atrium reduces paravalvular leakage and prevents migration of the stent once in place.Type: GrantFiled: January 14, 2011Date of Patent: August 28, 2012Assignee: Edwards Lifesciences CorporationInventors: Mark Chau, Seung Yi, Philip Corso, Michael J. Popp, Kevin Golemo, Jane Olin, Son V. Nguyen
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Publication number: 20110137397Abstract: Embodiments of prosthetic valves for implantation within a native mitral valve are provided. A preferred embodiment of a prosthetic valve includes a radially compressible main body and a one-way valve portion. The prosthetic valve further comprises at least one ventricular anchor coupled to the main body and disposed outside of the main body. A space is provided between an outer surface of the main body and the ventricular anchor for receiving a native mitral valve leaflet. The prosthetic valve preferably includes an atrial sealing member adapted for placement above the annulus of the mitral valve. Methods and devices for delivering and implanting the prosthetic valve are also described.Type: ApplicationFiled: December 2, 2010Publication date: June 9, 2011Applicant: EDWARDS LIFESCIENCES CORPORATIONInventors: Mark Chau, Marlowe Patterson, Seung Yi, Steve Geist, Travis Oba
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Publication number: 20110112632Abstract: A method of implanting a prosthetic mitral valve assembly is disclosed. The prosthetic mitral valve assembly includes a stent and valve combination. The prosthetic mitral valve assembly is provided with an anchoring portion adapted to be positioned in the left atrium. In one embodiment, the anchoring portion includes at least one anchoring arm sized for placement in a pulmonary vein. The stent is radially expandable so that it can expand into position against the walls of the left atrium and accommodate a wide range of anatomies. Contact between the stent and the native tissue in the left atrium reduces paravalvular leakage and prevents migration of the stent once in place.Type: ApplicationFiled: January 14, 2011Publication date: May 12, 2011Applicant: EDWARDS LIFESCIENCES CORPORATIONInventors: Mark Chau, Seung Yi, Philip P. Corso, JR., Michael Popp, Kevin Golemo, Jane M. Olin, Son V. Nguyen