Patents by Inventor Hamid Rafi
Hamid Rafi 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: 20240091007Abstract: Pinch devices and access systems that can be used to secure a prosthetic heart valve to a heart valve annulus and to treat valvular insufficiency. A pinch device can be a separate expandable element from the prosthetic heart valve that is first advanced to the annulus and deployed, after which an expandable prosthetic heart valve can be advanced to within the annulus and deployed. The two elements can clamp/pinch the heart valve leaflets to hold the prosthetic heart valve in place. The pinch device can have a flexible, expandable annular frame. A combined delivery system can deliver the pinch device and prosthetic heart valve with just a single access point and aid more accurate coaxial deployment. The pinch device can be mounted near distal end of an access sheath, and a catheter for delivering the prosthetic heart valve can be passed through a lumen of the same access sheath.Type: ApplicationFiled: November 29, 2023Publication date: March 21, 2024Inventors: Hamid Rafi, Russell T. Joseph, Robert Bowes, Uy D. Trinh, Emil Karapetian, Gregory Bak-Boychuk
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Patent number: 11844692Abstract: Pinch devices and access systems that can be used to secure a prosthetic heart valve to a heart valve annulus and to treat valvular insufficiency. A pinch device can be a separate expandable element from the prosthetic heart valve that is first advanced to the annulus and deployed, after which an expandable prosthetic heart valve can be advanced to within the annulus and deployed. The two elements can clamp/pinch the heart valve leaflets to hold the prosthetic heart valve in place. The pinch device can have a flexible, expandable annular frame. A combined delivery system can deliver the pinch device and prosthetic heart valve with just a single access point and aid more accurate coaxial deployment. The pinch device can be mounted near distal end of an access sheath, and a catheter for delivering the prosthetic heart valve can be passed through a lumen of the same access sheath.Type: GrantFiled: February 18, 2022Date of Patent: December 19, 2023Assignee: EDWARDS LIFESCIENCES CORPORATIONInventors: Hamid Rafi, Russell T. Joseph, Robert Bowes, Uy D. Trinh, Emil Karapetian, Gregory Bak-Boychuk
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Publication number: 20230389932Abstract: Disclosed herein are clot treatment systems and associated devices and methods. In some embodiments, a clot treatment system includes a catheter having a shaped distal portion configured to access a patient's left atrial appendage. The shaped distal portion of the catheter can be aligned with and/or positioned within the patient's left atrial appendage and used to aspirate clot material therefrom. The clot treatment system can further include a clot capture device configured to at least partially cover an opening of the left atrial appendage. For example, the clot capture device can be aligned with, positioned against, and/or inserted at least partially through an ostium of the patient's left atrial appendage to catch any clot material that breaks free from the left atrial appendage.Type: ApplicationFiled: June 6, 2023Publication date: December 7, 2023Inventors: Parker Ozenne, Jared Shimizu, Benjamin Edward Merritt, Hamid Rafi
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Publication number: 20230106663Abstract: A release mechanism for a delivery apparatus and associated methods for operating the release mechanism are disclosed. As one example, a handle portion of the delivery apparatus can include a release mechanism configured to adjust a linear position of a component of the delivery apparatus. The release mechanism can include a threaded drive screw including one or more retaining elements arranged at a proximal end of the drive screw and one or more grooves forming a helical threaded portion of the drive screw that each extend from a corresponding retaining element to a distal end of the drive screw, the drive screw coupled to the component; and a rotatable knob surrounding and coaxial with the drive screw, the knob including one or more teeth arranged at a proximal end of the knob, each tooth configured to interface with a corresponding retaining element and groove of the drive screw.Type: ApplicationFiled: December 9, 2022Publication date: April 6, 2023Inventors: Leah Paige Gaffney, Salomon Xavier Valencia, Hamid Rafi, Salvatore Manzella, JR.
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Publication number: 20220168096Abstract: Pinch devices and access systems that can be used to secure a prosthetic heart valve to a heart valve annulus and to treat valvular insufficiency. A pinch device can be a separate expandable element from the prosthetic heart valve that is first advanced to the annulus and deployed, after which an expandable prosthetic heart valve can be advanced to within the annulus and deployed. The two elements can clamp/pinch the heart valve leaflets to hold the prosthetic heart valve in place. The pinch device can have a flexible, expandable annular frame. A combined delivery system can deliver the pinch device and prosthetic heart valve with just a single access point and aid more accurate coaxial deployment. The pinch device can be mounted near distal end of an access sheath, and a catheter for delivering the prosthetic heart valve can be passed through a lumen of the same access sheath.Type: ApplicationFiled: February 18, 2022Publication date: June 2, 2022Inventors: Hamid Rafi, Russell T. Joseph, Robert Bowes, Uy D. Trinh, Emil Karapetian, Gregory Bak-Boychuk
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Patent number: 11253361Abstract: Pinch devices and access systems that can be used to secure a prosthetic heart valve to a heart valve annulus and to treat valvular insufficiency. A pinch device can be a separate expandable element from the prosthetic heart valve that is first advanced to the annulus and deployed, after which an expandable prosthetic heart valve can be advanced to within the annulus and deployed. The two elements can clamp/pinch the heart valve leaflets to hold the prosthetic heart valve in place. The pinch device can have a flexible, expandable annular frame. A combined delivery system can deliver the pinch device and prosthetic heart valve with just a single access point and aid more accurate coaxial deployment. The pinch device can be mounted near distal end of an access sheath, and a catheter for delivering the prosthetic heart valve can be passed through a lumen of the same access sheath.Type: GrantFiled: July 11, 2019Date of Patent: February 22, 2022Assignee: Edwards Lifesciences CorporationInventors: Hamid Rafi, Russell T. Joseph, Robert Bowes, Uy D. Trinh, Emil Karapetian, Gregory Bak-Boychuk
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Publication number: 20220000618Abstract: Disclosed embodiments of introducer devices provide hemostatic sealing and allow a delivery catheter to be inserted through the introducer seals without the use of a separate loader device that covers a medical device that is mounted on the catheter. Some disclosed introducers comprise a housing, a distal sheath extending distally from the housing and adapted to be inserted into a patient's vasculature, a distal hemostatic seal mounted within the housing and a proximal hemostatic seal mounted within the housing, and a slidable tube positioned within the housing that is movable longitudinally relative to the distal hemostatic seal between a proximal position and a distal position, wherein in the proximal position a distal end of the tube is positioned proximal to the distal hemostatic seal with the distal hemostatic seal closed, and wherein in the distal position the distal end of the tube extends through the distal hemostatic seal.Type: ApplicationFiled: September 20, 2021Publication date: January 6, 2022Applicant: Edwards Lifesciences CorporationInventors: Brian C. Gray, Tung T. Le, Andrew Oien, Sonny Tran, Thanh Huy Le, Robert Bowes, Maria L. Saravia, Uy D. Trinh, Hamid Rafi, Alejandro J. Froimovich Rosenberg
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Publication number: 20220000619Abstract: A delivery assembly comprises a delivery apparatus and a prosthetic valve releasably connected to a cord-retaining device of the delivery apparatus by a plurality of cords or tethers. The cords desirably have a multi-stranded construction formed from a plurality of strands of material. The multi-stranded construction can be, for example, a braided construction, a twisted construction, or a whip-stitch construction. The multi-stranded construction can include integral openings along opposing end portions of each cord. Each cord can extend through an aperture in an apex of the frame of the prosthetic valve or around an apex with one end portion of the cord being retained on the cord-retaining device and another end portion of the cord being retained on a slideable release member of the delivery apparatus.Type: ApplicationFiled: September 17, 2021Publication date: January 6, 2022Inventors: Kevin D. Rupp, Alyssa Joy Gross, Jun Liu, Hamid Rafi, Chambory Chhe, Uy D. Trinh, Duc Hong Nguyen
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Patent number: 11123188Abstract: Disclosed embodiments of introducer devices provide hemostatic sealing and allow a delivery catheter to be inserted through the introducer seals without the use of a separate loader device that covers a medical device that is mounted on the catheter. Some disclosed introducers comprise a housing, a distal sheath extending distally from the housing and adapted to be inserted into a patient's vasculature, a distal hemostatic seal mounted within the housing and a proximal hemostatic seal mounted within the housing, and a slidable tube positioned within the housing that is movable longitudinally relative to the distal hemostatic seal between a proximal position and a distal position, wherein in the proximal position a distal end of the tube is positioned proximal to the distal hemostatic seal with the distal hemostatic seal closed, and wherein in the distal position the distal end of the tube extends through the distal hemostatic seal.Type: GrantFiled: December 3, 2018Date of Patent: September 21, 2021Assignee: Edwards Lifesciences CorporationInventors: Brian C. Gray, Tung T. Le, Andrew Oien, Sonny Tran, Thanh Huy Le, Robert Bowes, Maria L. Saravia, Uy D. Trinh, Hamid Rafi, Alejandro J. Froimovich Rosenberg
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Publication number: 20190328512Abstract: Pinch devices and access systems that can be used to secure a prosthetic heart valve to a heart valve annulus and to treat valvular insufficiency. A pinch device can be a separate expandable element from the prosthetic heart valve that is first advanced to the annulus and deployed, after which an expandable prosthetic heart valve can be advanced to within the annulus and deployed. The two elements can clamp/pinch the heart valve leaflets to hold the prosthetic heart valve in place. The pinch device can have a flexible, expandable annular frame. A combined delivery system can deliver the pinch device and prosthetic heart valve with just a single access point and aid more accurate coaxial deployment. The pinch device can be mounted near distal end of an access sheath, and a catheter for delivering the prosthetic heart valve can be passed through a lumen of the same access sheath.Type: ApplicationFiled: July 11, 2019Publication date: October 31, 2019Inventors: Hamid Rafi, Russell T. Joseph, Robert Bowes, Uy D. Trinh, Emil Karapetian, Gregory Bak-Boychuk
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Patent number: 10357361Abstract: Pinch devices and access systems that can be used to secure a prosthetic heart valve to a heart valve annulus and to treat valvular insufficiency. A pinch device can be a separate expandable element from the prosthetic heart valve that is first advanced to the annulus and deployed, after which an expandable prosthetic heart valve can be advanced to within the annulus and deployed. The two elements can clamp/pinch the heart valve leaflets to hold the prosthetic heart valve in place. The pinch device can have a flexible, expandable annular frame. A combined delivery system can deliver the pinch device and prosthetic heart valve with just a single access point and aid more accurate coaxial deployment. The pinch device can be mounted near distal end of an access sheath, and a catheter for delivering the prosthetic heart valve can be passed through a lumen of the same access sheath.Type: GrantFiled: September 13, 2017Date of Patent: July 23, 2019Assignee: Edwards Lifesciences CorporationInventors: Hamid Rafi, Russell T. Joseph, Robert Bowes, Uy D. Trinh, Emil Karapetian, Gregory Bak-Boychuk
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Publication number: 20190105155Abstract: Disclosed embodiments of introducer devices provide hemostatic sealing and allow a delivery catheter to be inserted through the introducer seals without the use of a separate loader device that covers a medical device that is mounted on the catheter. Some disclosed introducers comprise a housing, a distal sheath extending distally from the housing and adapted to be inserted into a patient's vasculature, a distal hemostatic seal mounted within the housing and a proximal hemostatic seal mounted within the housing, and a slidable tube positioned within the housing that is movable longitudinally relative to the distal hemostatic seal between a proximal position and a distal position, wherein in the proximal position a distal end of the tube is positioned proximal to the distal hemostatic seal with the distal hemostatic seal closed, and wherein in the distal position the distal end of the tube extends through the distal hemostatic seal.Type: ApplicationFiled: December 3, 2018Publication date: April 11, 2019Inventors: Brian C. Gray, Tung T. Le, Andrew Oien, Sonny Tran, Thanh Huy Le, Robert Bowes, Maria L. Saravia, Uy D. Trinh, Hamid Rafi, Alejandro J. Froimovich Rosenberg
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Patent number: 10154904Abstract: Disclosed embodiments of introducer devices provide hemostatic sealing and allow a delivery catheter to be inserted through the introducer seals without the use of a separate loader device that covers a medical device that is mounted on the catheter. Some disclosed introducers comprise a housing, a distal sheath extending distally from the housing and adapted to be inserted into a patient's vasculature, a distal hemostatic seal mounted within the housing and a proximal hemostatic seal mounted within the housing, and a slidable tube positioned within the housing that is movable longitudinally relative to the distal hemostatic seal between a proximal position and a distal position, wherein in the proximal position a distal end of the tube is positioned proximal to the distal hemostatic seal with the distal hemostatic seal closed, and wherein in the distal position the distal end of the tube extends through the distal hemostatic seal.Type: GrantFiled: April 24, 2015Date of Patent: December 18, 2018Assignee: Edwards Lifesciences CorporationInventors: Brian C. Gray, Tung T. Le, Andrew Oien, Sonny Tran, Thanh Huy Le, Robert Bowes, Maria L. Saravia, Uy D. Trinh, Hamid Rafi, Alejandro J. Froimovich Rosenberg
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Publication number: 20180071085Abstract: Pinch devices and access systems that can be used to secure a prosthetic heart valve to a heart valve annulus and to treat valvular insufficiency. A pinch device can be a separate expandable element from the prosthetic heart valve that is first advanced to the annulus and deployed, after which an expandable prosthetic heart valve can be advanced to within the annulus and deployed. The two elements can clamp/pinch the heart valve leaflets to hold the prosthetic heart valve in place. The pinch device can have a flexible, expandable annular frame. A combined delivery system can deliver the pinch device and prosthetic heart valve with just a single access point and aid more accurate coaxial deployment. The pinch device can be mounted near distal end of an access sheath, and a catheter for delivering the prosthetic heart valve can be passed through a lumen of the same access sheath.Type: ApplicationFiled: September 13, 2017Publication date: March 15, 2018Inventors: Hamid Rafi, Russell T. Joseph, Robert Bowes, Uy D. Trinh, Emil Karapetian, Gregory Bak-Boychuk
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Publication number: 20150305863Abstract: Disclosed embodiments of introducer devices provide hemostatic sealing and allow a delivery catheter to be inserted through the introducer seals without the use of a separate loader device that covers a medical device that is mounted on the catheter. Some disclosed introducers comprise a housing, a distal sheath extending distally from the housing and adapted to be inserted into a patient's vasculature, a distal hemostatic seal mounted within the housing and a proximal hemostatic seal mounted within the housing, and a slidable tube positioned within the housing that is movable longitudinally relative to the distal hemostatic seal between a proximal position and a distal position, wherein in the proximal position a distal end of the tube is positioned proximal to the distal hemostatic seal with the distal hemostatic seal closed, and wherein in the distal position the distal end of the tube extends through the distal hemostatic seal.Type: ApplicationFiled: April 24, 2015Publication date: October 29, 2015Inventors: Brian C. Gray, Tung T. Le, Andrew Oien, Sonny Tran, Thanh Huy Le, Robert Bowes, Maria L. Saravia, Uy D. Trinh, Hamid Rafi, Alejandro J. Froimovich Rosenberg