Patents by Inventor Cheng Y. Yang
Cheng Y. Yang 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: 11304799Abstract: An anchoring element for a heart valve prosthesis can include an upper support, a lower support, and a flexible connector. The upper support is configured to be positioned adjacent to a native valve structure of a patient. The upper support can include an anterior portion and a posterior portion. The lower support is separate from the upper support and can be configured to engage the native valve structure from a ventricular side. The lower support can include at least two engagement members. The flexible connector includes an upper end portion coupled to the upper support and a lower end portion coupled to the lower support. The lower support and the upper support are radially expandable from a collapsed configuration to an expanded configuration for delivery within the patient to treat a valve disorder.Type: GrantFiled: May 11, 2018Date of Patent: April 19, 2022Assignee: Micor LimitedInventors: Ji Zhang, Brandon G. Walsh, Cheng Y. Yang, Jinhua Zhu
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Publication number: 20220110750Abstract: A heart valve prosthesis and methods of its implantation are described herein. The prosthesis can be implanted in a heart of a patient by positioning an upper support of an anchoring element into a left atrium of the patient. The upper support can expand adjacent to a native valve structure of the patient. Further, the upper support can be moved against the native valve structure in a direction toward a left ventricle of the patient. A lower support of the anchoring element can be positioned into the left ventricle, spaced apart from the upper support, the lower support being separate from the upper support and coupled to the upper support by a flexible connector. Finally, the lower support can expand within the left ventricle, and engagement members of the lower support can engage with tissue of the native valve structure.Type: ApplicationFiled: December 23, 2021Publication date: April 14, 2022Inventors: Ji ZHANG, Brandon G. WALSH, Cheng Y. YANG, Jinhua ZHU
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Patent number: 11207177Abstract: A heart valve prosthesis and methods of its implantation are described herein. The prosthesis can be implanted in a heart of a patient by positioning an upper support of an anchoring element into a left atrium of the patient. The upper support can expand adjacent to a native valve structure of the patient. Further, the upper support can be moved against the native valve structure in a direction toward a left ventricle of the patient. A lower support of the anchoring element can be positioned into the left ventricle, spaced apart from the upper support, the lower support being separate from the upper support and coupled to the upper support by a flexible connector. Finally, the lower support can expand within the left ventricle, and engagement members of the lower support can engage with tissue of the native valve structure.Type: GrantFiled: May 11, 2018Date of Patent: December 28, 2021Assignee: Micor LimitedInventors: Ji Zhang, Brandon G. Walsh, Cheng Y. Yang, Jinhua Zhu
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Patent number: 10966824Abstract: A heart valve prosthesis delivery system can include a first sheath, a second sheath, a check valve, a check valve control lines, and a heart valve prosthesis carried within the first sheath or the second sheath. The check valve can be carried within the first sheath or the second sheath. The check valve has a check valve frame and a cover component, and the check valve control lines can be coupled to the check valve frame and configured to be manipulated by a physician to control release of the check valve. In use, the check valve can be configured to be deployed within the native valve structure for minimizing back flow of blood during placement of the valve prosthesis when the native valve leaflets are rendered non-functional by the presence of the delivery system.Type: GrantFiled: May 11, 2018Date of Patent: April 6, 2021Assignee: Micor LimitedInventors: Ji Zhang, Brandon G. Walsh, Cheng Y. Yang, Jinhua Zhu
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Patent number: 10588741Abstract: A mitral valve prosthesis can be delivered within the native mitral annulus. The valve prosthesis has a valve component on which prosthetic valve leaflets are attached, and a lower support which anatomically and dynamically conforms to a native mitral valve annulus and which is flexibly attached to the valve component. The valve prosthesis can be delivered to the native mitral valve annulus in a collapsed configuration in which the valve component and anchoring element are serially rather than concentrically positioned to one another, thereby minimizing the diameter of the valve prosthesis during delivery. The devices and methods described are useful for treatment of various mitral valve disorders which result in, for example, mitral regurgitation.Type: GrantFiled: November 4, 2016Date of Patent: March 17, 2020Assignee: Micor LimitedInventors: Ji Zhang, Brandon G. Walsh, Cheng Y. Yang, Jinhua Zhu
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Publication number: 20180263768Abstract: A heart valve prosthesis and methods of its implantation are described herein. The prosthesis can be implanted in a heart of a patient by positioning an upper support of an anchoring element into a left atrium of the patient. The upper support can expand adjacent to a native valve structure of the patient. Further, the upper support can be moved against the native valve structure in a direction toward a left ventricle of the patient. A lower support of the anchoring element can be positioned into the left ventricle, spaced apart from the upper support, the lower support being separate from the upper support and coupled to the upper support by a flexible connector. Finally, the lower support can expand within the left ventricle, and engagement members of the lower support can engage with tissue of the native valve structure.Type: ApplicationFiled: May 11, 2018Publication date: September 20, 2018Inventors: Ji ZHANG, Brandon G. WALSH, Cheng Y. YANG, Jinhua ZHU
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Publication number: 20180256322Abstract: A heart valve prosthesis delivery system can include a first sheath, a second sheath, a check valve, a check valve control lines, and a heart valve prosthesis carried within the first sheath or the second sheath. The check valve can be carried within the first sheath or the second sheath. The check valve has a check valve frame and a cover component, and the check valve control lines can be coupled to the check valve frame and configured to be manipulated by a physician to control release of the check valve. In use, the check valve can be configured to be deployed within the native valve structure for minimizing back flow of blood during placement of the valve prosthesis when the native valve leaflets are rendered non-functional by the presence of the delivery system.Type: ApplicationFiled: May 11, 2018Publication date: September 13, 2018Inventors: Ji ZHANG, Brandon G. WALSH, Cheng Y. YANG, Jinhua ZHU
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Publication number: 20180256321Abstract: An anchoring element for a heart valve prosthesis can include an upper support, a lower support, and a flexible connector. The upper support is configured to be positioned adjacent to a native valve structure of a patient. The upper support can include an anterior portion and a posterior portion. The lower support is separate from the upper support and can be configured to engage the native valve structure from a ventricular side. The lower support can include at least two engagement members. The flexible connector includes an upper end portion coupled to the upper support and a lower end portion coupled to the lower support. The lower support and the upper support are radially expandable from a collapsed configuration to an expanded configuration for delivery within the patient to treat a valve disorder.Type: ApplicationFiled: May 11, 2018Publication date: September 13, 2018Inventors: Ji ZHANG, Brandon G. WALSH, Cheng Y. YANG, Jinhua ZHU
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Publication number: 20170128203Abstract: A mitral valve prosthesis can be delivered within the native mitral annulus. The valve prosthesis has a valve component on which prosthetic valve leaflets are attached, and a lower support which anatomically and dynamically conforms to a native mitral valve annulus and which is flexibly attached to the valve component. The valve prosthesis can be delivered to the native mitral valve annulus in a collapsed configuration in which the valve component and anchoring element are serially rather than concentrically positioned to one another, thereby minimizing the diameter of the valve prosthesis during delivery. The devices and methods described are useful for treatment of various mitral valve disorders which result in, for example, mitral regurgitation.Type: ApplicationFiled: November 4, 2016Publication date: May 11, 2017Inventors: Ji Zhang, Brandon G. Walsh, Cheng Y. Yang, Jinhua Zhu