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).

  • Patent number: 8926691
    Abstract: 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: Grant
    Filed: September 12, 2013
    Date of Patent: January 6, 2015
    Assignee: Edwards Lifesciences Corporation
    Inventors: Mark Chau, Marlowe E. Patterson, Seung-Beom Yi, Stephen C. Geist, Travis Oba
  • Publication number: 20140228946
    Abstract: 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: Application
    Filed: April 17, 2014
    Publication date: August 14, 2014
    Applicant: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Mark Chau, Marlowe E. Patterson, Seung-Beom Yi, Stephen C. Geist, Travis Oba
  • Publication number: 20140222136
    Abstract: 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: Application
    Filed: February 3, 2014
    Publication date: August 7, 2014
    Applicant: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Stephen C. Geist, Robert C. Taft, Travis Oba, Sam Sok, Matthew A. Peterson, Kevin M. Golemo, Mark Chau, Seung-Beom Yi
  • Patent number: 8753373
    Abstract: 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: Grant
    Filed: May 8, 2007
    Date of Patent: June 17, 2014
    Assignee: Edwards Lifesciences Corporation
    Inventors: Mark Chau, Kevin Golemo
  • Patent number: 8696742
    Abstract: 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: Grant
    Filed: October 10, 2012
    Date of Patent: April 15, 2014
    Assignee: Edwards Lifesciences Corporation
    Inventors: Rafael Pintor, Mark Chau, Travis Oba, August R. Yambao, Louis A. Campbell, Tammy Huntley, Qinggang Zeng, Carey L. Cristea, Faisal Kalam
  • Publication number: 20140081389
    Abstract: 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: Application
    Filed: November 25, 2013
    Publication date: March 20, 2014
    Applicant: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Mark Chau, Travis Oba, Tammy Huntley, Qinggang Zeng, August R. Yambao, Rafael Pintor
  • Publication number: 20140067048
    Abstract: 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: Application
    Filed: August 27, 2013
    Publication date: March 6, 2014
    Applicant: Edwards Lifesciences Corporation
    Inventors: Mark Chau, Travis Oba, Sergio Delgado, Robert C. Taft
  • Publication number: 20140067052
    Abstract: 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: Application
    Filed: September 5, 2013
    Publication date: March 6, 2014
    Applicant: Edwards Lifesciences Corporation
    Inventors: Mark Chau, Travis Oba, Sergio Delgado, Robert C. Taft
  • Publication number: 20140067054
    Abstract: 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: Application
    Filed: August 27, 2013
    Publication date: March 6, 2014
    Applicant: Edwards Lifesciences Corporation
    Inventors: Mark Chau, Travis Oba, Sergio Delgado, Robert C. Taft, Stanton J. Rowe, Alexander H. Cooper
  • Publication number: 20140012372
    Abstract: 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: Application
    Filed: September 12, 2013
    Publication date: January 9, 2014
    Applicant: Edwards Lifesciences Corporation
    Inventors: Mark Chau, Marlowe E. Patterson, Seung-Beom Yi, Stephen C. Geist, Travis Oba
  • Publication number: 20140012373
    Abstract: 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: Application
    Filed: September 12, 2013
    Publication date: January 9, 2014
    Applicant: Edwards Lifesciences Corporation
    Inventors: Mark Chau, Marlowe E. Patterson, Seung-Beom Yi, Stephen C. Geist, Travis Oba, David L. Hauser
  • Patent number: 8591567
    Abstract: 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: Grant
    Filed: November 13, 2009
    Date of Patent: November 26, 2013
    Assignee: Edwards Lifesciences Corporation
    Inventors: Mark Chau, Travis Oba, Tammy Huntley, Qinggang Zeng, August Yambao, Rafael Pintor
  • Patent number: 8585755
    Abstract: 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: Grant
    Filed: August 28, 2012
    Date of Patent: November 19, 2013
    Assignee: Edwards Lifesciences Corporation
    Inventors: Mark Chau, Marlowe E. Patterson, Seung-Beom Yi, Stephen C. Geist, Travis Zenyo Oba
  • Patent number: 8449599
    Abstract: 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: Grant
    Filed: December 2, 2010
    Date of Patent: May 28, 2013
    Assignee: Edwards Lifesciences Corporation
    Inventors: Mark Chau, Marlowe Patterson, Seung Yi, Steve Geist, Travis Oba
  • Patent number: 8348998
    Abstract: 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: Grant
    Filed: June 23, 2010
    Date of Patent: January 8, 2013
    Assignee: Edwards Lifesciences Corporation
    Inventors: Rafael Pintor, Mark Chau, Travis Oba, August Yambao, Louis A. Campbell, Tammy Huntley, Qinggang Zeng, Carey Cristea, Faisal Kalam
  • Publication number: 20120323316
    Abstract: 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: Application
    Filed: August 28, 2012
    Publication date: December 20, 2012
    Applicant: Edwards Lifesciences Corporation
    Inventors: Mark Chau, Marlowe E. Patterson, Seung Yi, Steve Geist, Travis Oba
  • Patent number: 8308798
    Abstract: 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: Grant
    Filed: December 10, 2009
    Date of Patent: November 13, 2012
    Assignee: Edwards Lifesciences Corporation
    Inventors: Rafael Pintor, Mark Chau, Travis Oba, August Yambao, Louis Campbell, Tammy Huntley, Qinggang Zeng, Carey Cristea, Faisal Kalam
  • Patent number: 8252051
    Abstract: 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: Grant
    Filed: January 14, 2011
    Date of Patent: August 28, 2012
    Assignee: Edwards Lifesciences Corporation
    Inventors: Mark Chau, Seung Yi, Philip Corso, Michael J. Popp, Kevin Golemo, Jane Olin, Son V. Nguyen
  • Publication number: 20110137397
    Abstract: 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: Application
    Filed: December 2, 2010
    Publication date: June 9, 2011
    Applicant: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Mark Chau, Marlowe Patterson, Seung Yi, Steve Geist, Travis Oba
  • Publication number: 20110112632
    Abstract: 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: Application
    Filed: January 14, 2011
    Publication date: May 12, 2011
    Applicant: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Mark Chau, Seung Yi, Philip P. Corso, JR., Michael Popp, Kevin Golemo, Jane M. Olin, Son V. Nguyen