Patents by Inventor Michael G. Valdez
Michael G. Valdez 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: 20250064588Abstract: A medical access system can comprise an expandable access sheath and an introducer. The expandable access sheath can comprise a sheath shaft comprising an expandable distal end portion, and a shaft delivery lumen extending therethrough. The introducer can comprise an introducer shaft configured to be at least partially disposed within the shaft delivery lumen. The introducer shaft can comprise a first distal portion comprising a first diameter and a second distal portion proximal of the first distal portion and having a second diameter larger than the first diameter. A second externally oriented surface portion defining the second distal portion, and an externally oriented transition surface portion extending between a first externally oriented surface portion defining the first distal portion and the second externally oriented surface, can be angled relative to one another, such as forming an angle between about 80 degrees and about 100 degrees.Type: ApplicationFiled: November 11, 2024Publication date: February 27, 2025Inventors: Michael G. Valdez, Omar Fawzi Azanki, Hien T. Nguyen
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Publication number: 20250065077Abstract: A tapered medical access sheath can comprise an access sheath hub and an access sheath shaft extending distally from the access sheath hub. The access sheath shaft can comprise a first delivery lumen extending from a proximal end of the access sheath shaft to a side opening on a distal portion of the access sheath shaft, the first delivery lumen having a width configured to slidably receive a distal portion of a medical device disposed around a guidewire. The access sheath shaft can comprise a tapered distal end portion disposed distally of the side opening. A recess can extend along a longitudinal dimension of the tapered distal end portion from a proximal end to a distal end of the tapered distal end portion. The recess can be in fluid communication with the first delivery lumen and have a width smaller than the diameter of the first delivery lumen.Type: ApplicationFiled: November 14, 2024Publication date: February 27, 2025Inventors: Michael G. Valdez, Daniel James Murray, Hien T. Nguyen, Steven Park
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Publication number: 20250025106Abstract: A sensor implant device comprising a sensor body comprising at least a first sensor component, one or more anchors coupled to the sensor body and configured to anchor the sensor body within a tissue wall, a detachable tip, and a tether connecting the detachable tip to the sensor body.Type: ApplicationFiled: October 7, 2024Publication date: January 23, 2025Inventor: Michael G. Valdez
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Patent number: 12194256Abstract: A delivery sheath includes an outer tubular layer and an initially folded inner tubular layer. When an implant passes therethrough, the outer tubular layer expands and the inner tubular layer unfolds into an expanded lumen diameter. The sheath may also include selectively placed longitudinal support rods that mediate friction between the inner and outer tubular layers to facilitate easy expansion, thereby reducing the push force needed to advance the implant through the sheath's lumen.Type: GrantFiled: August 8, 2022Date of Patent: January 14, 2025Assignee: EDWARDS LIFESCIENCES CORPORATIONInventors: Pu Zhou, Erik Bulman, Timothy A. Geiser, Michael G. Valdez, Yidong M. Zhu, Baigui Bian, Sonny Tran, Richard D. White, Thanh Huy Le, Tung T. Le, Alpana Kiran Gowdar, Yong Gao, David Delon Williams
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Publication number: 20240424264Abstract: A delivery sheath includes an outer tubular layer and an initially folded inner tubular layer. When an implant passes therethrough, the outer tubular layer expands and the inner tubular layer unfolds into an expanded lumen diameter. The sheath may also include selectively placed longitudinal support rods that mediate friction between the inner and outer tubular layers to facilitate easy expansion, thereby reducing the push force needed to advance the implant through the sheath's lumen.Type: ApplicationFiled: September 10, 2024Publication date: December 26, 2024Inventors: Pu Zhou, Erik Bulman, Timothy A. Geiser, Michael G. Valdez, Yidong M. Zhu, Baigui Bian, Sonny Tran, Richard D. White, Thanh Huy Le, Tung T. Le, Alpana Kiran Gowdar, Yong Gao, David Delon Williams
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Publication number: 20240423664Abstract: Introducers and dilators that include expansion features configured to dilate expandable access sheaths, and expandable access sheaths, are described herein. The introducer can include an expansion feature disposed on an elongate shaft. The expansion feature can include a larger outer diameter than the distal end of the elongate shaft or another portion of the elongate shaft. The expansion feature can be configured to dilate a portion of an expandable access sheath when the elongate shaft is translated within the expandable access sheath. Expandable access sheaths can comprise expandable distal end portions configured to be maintained in a closed state by, for example, a tensioned cord portion disposed around a circumferential portion of the expandable distal end portion, a plurality of pleats comprising material configured to attract one another, a circumferential portion with a weakened joint, and/or a weakened portion on a sidewall of the expandable distal end portion.Type: ApplicationFiled: August 30, 2024Publication date: December 26, 2024Inventors: Tyler Poon, Steven Park, Anne Bernadette Aragon Alcasid, Michael G. Valdez
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Publication number: 20240424286Abstract: A medical device delivery system can comprise a delivery catheter and an in-line sheath, the delivery catheter being preloaded within the in-line sheath. The delivery catheter can comprise a catheter hub and a catheter shaft. The catheter shaft can comprise a proximal portion extending distally from the hub and slidably receiving a proximal narrow portion of a medical device, and a distal portion slidably receiving a distal wide portion of a medical device. The in-line sheath can comprise a sheath hub and a sheath shaft. The sheath shaft can comprise a proximal portion extending distally from the sheath hub and slidably receiving at least a portion of the proximal portion of the catheter shaft, and an expandable distal portion slidably receiving the distal portion of the catheter shaft.Type: ApplicationFiled: September 3, 2024Publication date: December 26, 2024Inventors: Hien T. Nguyen, Daniel James Murray, Michael G. Valdez, Yair A. Neumann, Anne Bernadette Aragon Alcasid, Amir Davidesko, Steven Park, Sofia Rozenberg
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Publication number: 20240399123Abstract: A shunt implant device includes one or more anchor arms and first and second barrel wings configured to curve to form a tubular barrel form. In some implementations, shunt implant devices of the present disclosure include a shunt barrel formed at least in part by a plurality of arcuate panels configured in an at least partially cylindrical form, a first anchor arm projecting from a first axial side of the shunt barrel and deflected radially outward in a first radial direction, and a second anchor arm projecting from a second axial side of the shunt barrel and deflected radially outward in the first radial direction.Type: ApplicationFiled: August 13, 2024Publication date: December 5, 2024Inventors: Michael G. Valdez, Tiana Tran
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Publication number: 20240399137Abstract: An implant delivery system comprises a distal portion configured to naturally assume a first width and expand beyond the first width in response to an implant device being inserted into the distal portion via an opening at a distal end of the distal portion and a proximal portion configured to generally maintain the first widthType: ApplicationFiled: August 8, 2024Publication date: December 5, 2024Inventors: Michael G. Valdez, Hien T. Nguyen
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Publication number: 20240268808Abstract: Devices for puncturing, anchoring in the tissue of a human heart, and sealing the puncture and methods of puncturing, deploying anchors, and sealing the puncture are disclosed. The anchors are used to remodel the shape of the heart. The devices and methods use sealing structures to prevent blood leak through a passage formed by puncturing the heart tissue.Type: ApplicationFiled: April 26, 2024Publication date: August 15, 2024Inventors: Anne Bernadette Aragon Alcasid, Yoon Hee Kwon, Tiana Tran, Kokou Anani Amefia, Sydney Jade Fletcher, James G. Wittel, Bianca Xochitl Aleman, Michael G. Valdez
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Publication number: 20240268960Abstract: Several heart wall remodeling devices and methods are disclosed. One heart wall remodeling device includes an anchoring portion having an elongated anchor body with a distal anchor end portion and a proximal anchor end portion opposite the distal anchor end portion, a rotation joint portion having a distal joint end portion fixedly attached to the proximal anchor end portion and a proximal joint end portion opposite the distal joint end portion and a hemostasis element having a distal hemostasis end portion detachably connected to the proximal joint end portion. One heart wall remodeling device includes a tensioner that applies a variable tension between anchors.Type: ApplicationFiled: February 29, 2024Publication date: August 15, 2024Inventors: Kokou Anani Amefia, Pablo Hernan Catania, Arnold Cruz Tuason, Yoon Hee Kwon, Tiana (formerly Thu Thi Anh) Tran, Michael G. Valdez, Anne Bernadette Aragon Alcasid, Arvin T. Chang, Steven Park, Juan Valencia
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Publication number: 20240115379Abstract: Described herein are systems and methods from delivering prosthetic devices, such as prosthetic heart valves, through the body and into the heart for implantation therein. The prosthetic devices delivered with the delivery systems disclosed herein are, for example, radially expandable from a radially compressed state mounted on the delivery system to a radially expanded state for implantation using an inflatable balloon of the delivery system. Exemplary delivery routes through the body and into the heart include transfemoral routes, transapical routes, and transaortic routes, among others.Type: ApplicationFiled: December 16, 2023Publication date: April 11, 2024Inventors: Walter Lee, Mark M. Dehdashtian, Teodoro S. Jimenez, Gilbert S. Leung, Bryan A. Janish, Michael G. Valdez, Tram Ngoc Nguyen, Timothy C. Ulrich
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Publication number: 20240108877Abstract: A sheath assembly can comprise a removable hub. The removable hub can have a lumen extending therethrough and comprise a first circumferential hub portion that spans a first circumferential segment about a longitudinal axis of the removable hub, a second circumferential hub portion that spans a second circumferential segment about the longitudinal axis of the removable hub, and first and second connector portions connecting the first circumferential hub portion and the second circumferential hub portion. The second circumferential segment can be greater than the first circumferential segment. The sheath assembly can comprise a removable shaft configured to extend distally from a distal end of the removable hub, the removable shaft being configured such that separation of the first circumferential hub portion from the second circumferential hub portion causes a first circumferential shaft portion to separate from a second circumferential shaft portion.Type: ApplicationFiled: December 7, 2023Publication date: April 4, 2024Inventors: Hien T. Nguyen, Michael G. Valdez
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Publication number: 20240090842Abstract: A sensor implant system comprises a shunt implant comprising a central flow portion configured to maintain an opening through a tissue wall and a sensor implant device. The sensor implant device comprises a shunt body configured to fit at least partially within the central flow portion of the shunt implant and a sensor device coupled to the shunt body.Type: ApplicationFiled: November 17, 2023Publication date: March 21, 2024Inventors: Arvin T. Chang, Jean-Pierre Michel Rabbah, Kokou Anani Amefia, Michael G. Valdez, Steven McConnell
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Publication number: 20240090841Abstract: A method comprises delivering a first implant to an orifice of a chamber of a heart, anchoring the first implant at the orifice, delivering a sensor device to the orifice, and coupling the sensor device to the first implant.Type: ApplicationFiled: November 17, 2023Publication date: March 21, 2024Inventors: Michael G. Valdez, Julie Ann Hinzman, Rani Abdullah Mahmoudi, Arvin T. Chang
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Publication number: 20240081993Abstract: Embodiments of a catheter assembly are disclosed. The catheter assembly comprises a shaft; a connector assembly comprising a first connector portion and a second connector portion, wherein the first connector portion is fixedly coupled to a distal end of the shaft, and is rotatably coupled to the second connector portion by at least one radially extending pin retained within at least one slot on the second connector portion, wherein the at least one slot has an oversized circumferential dimension that allows limited rotation of the second connector portion relative to the first connector portion about a longitudinal axis of the shaft.Type: ApplicationFiled: November 17, 2023Publication date: March 14, 2024Inventor: Michael G. Valdez
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Publication number: 20240081742Abstract: A sensor implant device includes a sensor device, an anchor base structure secured to the sensor device, a first helical tissue anchor secured to at least one of the sensor device or the anchor base structure, the first helical tissue anchor winding in a first direction, and a second helical tissue anchor secured to at least one of the sensor device or the anchor base structure, the second helical tissue anchor winding in a second direction opposite the first direction.Type: ApplicationFiled: November 14, 2023Publication date: March 14, 2024Inventors: Michael G. Valdez, Tiana Tran
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Patent number: 11877929Abstract: Described herein are systems and methods from delivering prosthetic devices, such as prosthetic heart valves, through the body and into the heart for implantation therein. The prosthetic devices delivered with the delivery systems disclosed herein are, for example, radially expandable from a radially compressed state mounted on the delivery system to a radially expanded state for implantation using an inflatable balloon of the delivery system. Exemplary delivery routes through the body and into the heart include transfemoral routes, transapical routes, and transaortic routes, among others.Type: GrantFiled: April 6, 2020Date of Patent: January 23, 2024Assignee: EDWARDS LIFESCIENCES CORPORATIONInventors: Walter Lee, Mark M. Dehdashtian, Teodoro S. Jimenez, Gilbert S. Leung, Bryan A. Janish, Michael G. Valdez, Tram Ngoc Nguyen, Timothy C. Ulrich
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Patent number: 11857416Abstract: Embodiments of a catheter assembly are disclosed. The catheter assembly comprises a shaft; at least one connector assembly. The connector assembly can comprise a first connector portion and a second connector portion, wherein the first connector portion is fixedly coupled to a distal end of the shaft, and is coupled to the second connector portion with a limited degree of freedom of movement by at least one radially extending pin retained within at least one slot on the second connector portion. The at least one slot can have an oversized circumferential dimension that allows limited rotation of the second connector portion relative to the first connector portion about a longitudinal axis of the shaft.Type: GrantFiled: April 3, 2020Date of Patent: January 2, 2024Assignee: EDWARDS LIFESCIENCES CORPORATIONInventor: Michael G. Valdez
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Publication number: 20230414117Abstract: A sensor implant device can include a shunt body that forms a fluid conduit, a first anchor structure associated with a first axial end of the shunt body, a second anchor structure associated with a second axial end of the shunt body, and a first sensor device coupled to the first anchor structure, the first anchor structure being configured to hold the first sensor device in a sensing position over a channel area of the fluid conduit.Type: ApplicationFiled: September 13, 2023Publication date: December 28, 2023Inventor: Michael G. Valdez