Patents by Inventor Derrick Johnson
Derrick Johnson 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: 20200155309Abstract: A prosthetic heart valve configured to replace a native heart valve and having a support frame configured to be reshaped into an expanded form in order to receive and/or support an expandable prosthetic heart valve therein is disclosed, together with methods of using same. The prosthetic heart valve may be configured to have a generally rigid and/or expansion-resistant configuration when initially implanted to replace a native valve (or other prosthetic heart valve), but to assume a generally expanded form when subjected to an outward force such as that provided by a dilation balloon or other mechanical expander.Type: ApplicationFiled: January 27, 2020Publication date: May 21, 2020Inventors: Visith Chung, Da-Yu Chang, Brian S. Conklin, Grace Myong Kim, Louis A. Campbell, Donald E. Bobo, JR., Myron Howanec, JR., David S. Lin, Peng Norasing, Francis M. Tran, Mark Van Nest, Thomas Chien, Harvey H. Chen, Isidro L. Guerrero, Derrick Johnson, Paul A. Schmidt
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Publication number: 20200121456Abstract: A prosthetic heart valve configured to replace a native heart valve and having a support frame configured to be reshaped into an expanded form in order to receive and/or support an expandable prosthetic heart valve therein. A dual-wireform support frame including an upper and a lower wireform permits expansion of the valve by one or two valve sizes, for example, with a 2-mm gap between each valve size. The lower wireform has a relatively shallow undulation so that it may stretch apart by a small amount and then prevent further expansion of the valve.Type: ApplicationFiled: December 19, 2019Publication date: April 23, 2020Inventors: Derrick Johnson, Michael C. Murad, Steven M. Ford, Rodolfo Rodriguez
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Publication number: 20200093593Abstract: A prosthetic heart valve configured to replace a native heart valve and having a support frame configured to be reshaped into an expanded form in order to receive and/or support an expandable prosthetic heart valve therein is disclosed, together with methods of using same. The prosthetic heart valve may be configured to have a generally rigid and/or expansion-resistant configuration when initially implanted to replace a native valve (or other prosthetic heart valve), but to assume a generally expanded form when subjected to an outward force such as that provided by a dilation balloon or other mechanical expander.Type: ApplicationFiled: November 25, 2019Publication date: March 26, 2020Inventors: Visith Chung, Da-Yu Chang, Brian S. Conklin, Grace Myong Kim, Louis A. Campbell, Donald E. Bobo, JR., Myron Howanec, David S. Lin, Peng Norasing, Francis M. Tran, Mark Van Nest, Thomas Chien, Harvey H. Chen, Isidro L. Guerrero, Derrick Johnson, Paul A. Schmidt
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Publication number: 20200069426Abstract: Systems, apparatuses, and methods disclosed herein are provided for medical treatment, including transcatheter medical treatments and/or for treatment of dilated hearts (e.g., dilated left ventricle) or functional mitral valve regurgitation within a human heart. The systems, apparatuses, and methods disclosed herein may include applying one or more heart splints to the patient's heart to apply pressure to the heart to reshape the heart. Anchors disclosed herein may be utilized in plugs for treating openings in a septum between two chambers of a heart, e.g., ventricular septal defects (VSD), atrial septal defects (ASD), and patent foramen ovale (PFO). In addition, the anchors disclosed herein may be utilized to reshape an annulus of a patient's heart valve, including a tricuspid valve of a patient's heart. The anchors disclosed herein may also be utilized to reposition a heart valve leaflet to reduce heart valve leaflet prolapse.Type: ApplicationFiled: August 23, 2019Publication date: March 5, 2020Inventors: Brian S. Conklin, Maria L. Saravia, Adam J. Yestrepsky, Derrick Johnson, Rodolfo Rodriguez, Sai Prasad Uppalapati, Louis A. Campbell
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Patent number: 10543085Abstract: A prosthetic heart valve configured to replace a native heart valve and having a support frame configured to be reshaped into an expanded form in order to receive and/or support an expandable prosthetic heart valve therein is disclosed, together with methods of using same. The prosthetic heart valve may be configured to have a generally rigid and/or expansion-resistant configuration when initially implanted to replace a native valve (or other prosthetic heart valve), but to assume a generally expanded form when subjected to an outward force such as that provided by a dilation balloon or other mechanical expander.Type: GrantFiled: June 13, 2018Date of Patent: January 28, 2020Assignee: EDWARDS LIFESCIENCES CORPORATIONInventors: Visith Chung, Da-Yu Chang, Brian S. Conklin, Grace Myong Kim, Louis A. Campbell, Donald E. Bobo, Jr., Myron Howanec, Jr., David S. Lin, Peng Norasing, Francis M. Tran, Mark Van Nest, Thomas H. Chien, Harvey H. Chen, Isidro L. Guerrero, Derrick Johnson, Paul A. Schmidt
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Patent number: 10485661Abstract: A prosthetic heart valve configured to replace a native heart valve and having a support frame configured to be reshaped into an expanded form in order to receive and/or support an expandable prosthetic heart valve therein is disclosed, together with methods of using same. The prosthetic heart valve may be configured to have a generally rigid and/or expansion-resistant configuration when initially implanted to replace a native valve (or other prosthetic heart valve), but to assume a generally expanded form when subjected to an outward force such as that provided by a dilation balloon or other mechanical expander.Type: GrantFiled: June 15, 2017Date of Patent: November 26, 2019Assignee: Edwards Lifesciences CorporationInventors: Visith Chung, Da-Yu Chang, Brian S. Conklin, Grace Myong Kim, Louis A. Campbell, Donald E. Bobo, Jr., Myron Howanec, Jr., David S. Lin, Peng Norasing, Francis M. Tran, Mark Van Nest, Thomas H. Chien, Harvey H. Chen, Isidro L. Guerrero, Derrick Johnson, Paul A. Schmidt
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Patent number: 10441415Abstract: A prosthetic heart valve for implant in a human. The valve includes a wireform with undulating inflow cusps and outflow commissure posts to which flexible leaflets attach and coapt in a flow area. Each leaflet may drape over the top of the wireform in the cusp area, but have tabs that each extend underneath the wireform at the commissure posts to be secured along with a tab of an adjacent leaflet. The prosthetic heart valve may also be a dual-wire wireform, with the leaflets sandwiched therebetween. One wireform may be larger than the other, with the leaflets extending over the smaller wireform. The smaller wireform may have commissures that bend radially outward from the larger wireform to provide structure to which the leaflet tabs attach.Type: GrantFiled: September 17, 2014Date of Patent: October 15, 2019Assignee: Edwards Lifesciences CorporationInventors: Derrick Johnson, Van Le Huynh, Qinggang Zeng
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Publication number: 20190167422Abstract: A prosthetic heart valve configured to replace a native heart valve and for post-implant expansion and having a valve-type indicator thereon visible from outside the body post-implant. The indicator communicates information about the valve, such as the size or orifice diameter of the valve, and/or that the valve has the capacity for post-implant expansion. The indicator can be an alphanumeric symbol or other symbol or combination of symbols that represent information about the characteristics of the valve such as the valve size. The capacity for post-implant expansion facilitates a valve-in-valve procedure, where the valve-type indicator conveys information to the surgeon about whether the implanted valve is suitable for the procedure and informs the choice of the secondary valve.Type: ApplicationFiled: February 8, 2019Publication date: June 6, 2019Inventors: Jessica Guttenberg, Da-Yu Chang, Derrick Johnson, Brian S. Conklin, Qinggang Zeng, Myron Howanec, JR., Grace Myong Kim
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Patent number: 10238486Abstract: A sewing ring for prosthetic heart valves that is connected and configured to pivot outward. A biocompatible fabric covering surrounds at least a portion of the sewing ring, and the ring may be exclusively connected to a stent with the fabric. The sewing ring may be generally planar and of uniform thickness, or may be of varying thickness. The fabric may be used to encompass both the stent and the sewing ring, and may be a single piece. A seam may be provided in the fabric as a discrete pivoting line. The sewing ring may be convertible between bi-stable positions. The ring may extend outward in a frusto-conical shape so as to enable inversion between a position facing the inflow end of the valve and a position facing the outflow end of the valve. The sewing ring may have a compliant insert having a celled construction defined by outer walls and inner ribs. A method of implantation, and a method of assembly of the heart valve is also provided.Type: GrantFiled: September 9, 2016Date of Patent: March 26, 2019Assignee: Edwards Lifesciences CorporationInventors: Van Huynh, Michael J. Scott, Derrick Johnson
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Publication number: 20190046317Abstract: A valved conduit including a bioprosthetic aortic heart valve connected to a tubular conduit graft forming an ascending aorta. The conduit graft may attach to the heart valve in a manner that facilitates a redo operation in which the valve is replaced with another valve. A sewing ring may be pre-attached to the inflow end of the graft, and then the valve connected to a delivery holder advanced into the graft and secured to the sewing ring. Dry bioprosthetic valves coupled with conduit grafts sealed with a bioresorbable medium can be stored with the delivery holder.Type: ApplicationFiled: August 2, 2018Publication date: February 14, 2019Inventors: Michael C. Murad, Hilda Z. Fann, Mark Van Nest, John X. Wang, Derrick Johnson
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Patent number: 10130469Abstract: A prosthetic heart valve configured to replace a native heart valve and for post-implant expansion and having a valve-type indicator thereon visible from outside the body post-implant. The indicator communicates information about the valve, such as the size or orifice diameter of the valve, and/or that the valve has the capacity for post-implant expansion. The indicator can be an alphanumeric symbol or other symbol or combination of symbols that represent information about the characteristics of the valve such as the valve size. The capacity for post-implant expansion facilitates a valve-in-valve procedure, where the valve-type indicator conveys information to the surgeon about whether the implanted valve is suitable for the procedure and informs the choice of the secondary valve.Type: GrantFiled: June 8, 2017Date of Patent: November 20, 2018Assignee: EDWARDS LIFESCIENCES CORPORATIONInventors: Jessica Guttenberg, Da-Yu Chang, Derrick Johnson, Brian S. Conklin, Qinggang Zeng, Myron Howanec, Grace Myong Kim
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Publication number: 20180311041Abstract: A prosthetic heart valve holder system includes a prosthetic heart valve having a base at an inflow end, a plurality of commissure posts extending from the base toward an outflow end, and valve leaflets secured to the commissure posts to permit flow through the heart valve. A deflector is provided at the outflow end having a central hub and a plurality of arms extending from the central hub secured to and covering the tips of respective commissure posts. A valve support body is secured to the base and a post connects the valve support body to the hub of the deflector.Type: ApplicationFiled: April 26, 2018Publication date: November 1, 2018Inventors: Ankita Bordoloi, Derrick Johnson, Brian S. Conklin, Myron Howanec, JR.
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Publication number: 20180289475Abstract: A prosthetic heart valve configured to replace a native heart valve and having a support frame configured to be reshaped into an expanded form in order to receive and/or support an expandable prosthetic heart valve therein is disclosed, together with methods of using same. The prosthetic heart valve may be configured to have a generally rigid and/or expansion-resistant configuration when initially implanted to replace a native valve (or other prosthetic heart valve), but to assume a generally expanded form when subjected to an outward force such as that provided by a dilation balloon or other mechanical expander.Type: ApplicationFiled: June 13, 2018Publication date: October 11, 2018Inventors: Visith Chung, Da-Yu Chang, Brian S. Conklin, Grace Myong Kim, Louis A. Campbell, Donald E. Bobo, JR., Myron Howanec, JR., David S. Lin, Peng Norasing, Francis M. Tran, Mark Van Nest, Thomas H. Chien, Harvey H. Chen, Isidro L. Guerrero, Derrick Johnson, Paul A. Schmidt
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Patent number: 10052200Abstract: A prosthetic heart valve configured to replace a native heart valve and having a support frame configured to be reshaped into an expanded form in order to receive and/or support an expandable prosthetic heart valve therein is disclosed, together with methods of using same. The prosthetic heart valve may be configured to have a generally rigid and/or expansion-resistant configuration when initially implanted to replace a native valve (or other prosthetic heart valve), but to assume a generally expanded form when subjected to an outward force such as that provided by a dilation balloon or other mechanical expander.Type: GrantFiled: June 22, 2016Date of Patent: August 21, 2018Assignee: Edwards Lifesciences CorporationInventors: Visith Chung, Da-Yu Chang, Brian S. Conklin, Grace Myong Kim, Louis A. Campbell, Donald E. Bobo, Jr., Myron Howanec, Jr., David S. Lin, Peng Norasing, Francis M. Tran, Mark Van Nest, Thomas H. Chien, Harvey H. Chen, Isidro L. Guerrero, Derrick Johnson, Paul A. Schmidt
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Publication number: 20180168809Abstract: A heart valve sizer and sizer cover are provided for determining the size of a heart valve annulus. The valve sizer can include a handle, a shaft extending distally from the handle, a sizing element coupled to the distal end of the shaft, the sizing element being movable between a first retracted position and a second expanded position, and a sizer cover. The sizer cover can be formed from a continuous sheet of material configured to surround at least a portion of the sizing element of the heart valve sizer so as to guard against entanglement of the sizing element with structures of a human heart.Type: ApplicationFiled: February 19, 2018Publication date: June 21, 2018Inventors: Gerald B. Gollinger, William A. Maywald, Derrick Johnson, Brian S. Conklin, Ankita Bordoloi, Da-Yu Chang
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Publication number: 20180116795Abstract: Valve holders and introducers for delivering a prosthetic heart valve to an implant site are in various embodiments configured to facilitate insertion of prosthetic valves through small incisions or access sites on a patient's body. The valve holders can also be configured to reduce or eliminate the occurrence of suture looping or other damage to the prosthetic valve during implantation. A valve holder according to embodiments of the invention includes features that reduce or eliminate mistakes during implantation of the prosthetic valves, such as a removable activator dial and a removable handle that prevent implantation of the valve prior to proper deployment or adjustment of the holder. An introducer is provided which can facilitate passing of a prosthetic valve between adjacent ribs of a patient. Valve holders and introducers according to the various embodiments can be used in minimally invasive procedures, such as thoracotomy procedures.Type: ApplicationFiled: October 27, 2017Publication date: May 3, 2018Inventors: Brian S. Conklin, Derrick Johnson
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Patent number: 9895228Abstract: A heart valve sizer and sizer cover are provided for determining the size of a heart valve annulus. The valve sizer can include a handle, a shaft extending distally from the handle, a sizing element coupled to the distal end of the shaft, the sizing element being movable between a first retracted position and a second expanded position, and a sizer cover. The sizer cover can be formed from a continuous sheet of material configured to surround at least a portion of the sizing element of the heart valve sizer so as to guard against entanglement of the sizing element with structures of a human heart.Type: GrantFiled: June 26, 2014Date of Patent: February 20, 2018Assignee: Edwards Lifesciences CorporationInventors: Gerald B. Gollinger, William A. Maywald, Derrick Johnson, Brian S. Conklin, Ankita Bordoloi, Da-Yu Chang
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Publication number: 20170281342Abstract: A prosthetic heart valve configured to replace a native heart valve and having a support frame configured to be reshaped into an expanded form in order to receive and/or support an expandable prosthetic heart valve therein is disclosed, together with methods of using same. The prosthetic heart valve may be configured to have a generally rigid and/or expansion-resistant configuration when initially implanted to replace a native valve (or other prosthetic heart valve), but to assume a generally expanded form when subjected to an outward force such as that provided by a dilation balloon or other mechanical expander.Type: ApplicationFiled: June 15, 2017Publication date: October 5, 2017Inventors: Visith Chung, Da-Yu Chang, Brian S. Conklin, Grace Myong Kim, Louis A. Campbell, Donald E. Bobo, JR., Myron Howanec, David S. Lin, Peng Norasing, Francis M. Tran, Mark Van Nest, Thomas H. Chien, Harvey H. Chen, Isidro L. Guerrero, Derrick Johnson, Paul A. Schmidt
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Publication number: 20170281340Abstract: A prosthetic heart valve configured to replace a native heart valve and for post-implant expansion and having a valve-type indicator thereon visible from outside the body post-implant. The indicator communicates information about the valve, such as the size or orifice diameter of the valve, and/or that the valve has the capacity for post-implant expansion. The indicator can be an alphanumeric symbol or other symbol or combination of symbols that represent information about the characteristics of the valve such as the valve size. The capacity for post-implant expansion facilitates a valve-in-valve procedure, where the valve-type indicator conveys information to the surgeon about whether the implanted valve is suitable for the procedure and informs the choice of the secondary valve.Type: ApplicationFiled: June 8, 2017Publication date: October 5, 2017Inventors: Jessica Guttenberg, Da-Yu Chang, Derrick Johnson, Brian S. Conklin, Qinggang Zeng, Myron Howanec, JR., Grace Myong Kim
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Publication number: 20170239044Abstract: A prosthetic heart valve for implant in a human. The valve includes a wireform with undulating inflow cusps and outflow commissure posts to which flexible leaflets attach and coapt in a flow area. Each leaflet may drape over the top of the wireform in the cusp area, but have tabs that each extend underneath the wireform at the commissure posts to be secured along with a tab of an adjacent leaflet. The prosthetic heart valve may also be a dual-wire wireform, with the leaflets sandwiched therebetween. One wireform may be larger than the other, with the leaflets extending over the smaller wireform. The smaller wireform may have commissures that bend radially outward from the larger wireform to provide structure to which the leaflet tabs attach.Type: ApplicationFiled: May 10, 2017Publication date: August 24, 2017Inventors: Derrick Johnson, Van Huynh, Qinggang Zeng