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).

  • Publication number: 20250064588
    Abstract: 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: Application
    Filed: November 11, 2024
    Publication date: February 27, 2025
    Inventors: Michael G. Valdez, Omar Fawzi Azanki, Hien T. Nguyen
  • Publication number: 20250065077
    Abstract: 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: Application
    Filed: November 14, 2024
    Publication date: February 27, 2025
    Inventors: Michael G. Valdez, Daniel James Murray, Hien T. Nguyen, Steven Park
  • Publication number: 20250025106
    Abstract: 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: Application
    Filed: October 7, 2024
    Publication date: January 23, 2025
    Inventor: Michael G. Valdez
  • Patent number: 12194256
    Abstract: 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: Grant
    Filed: August 8, 2022
    Date of Patent: January 14, 2025
    Assignee: EDWARDS LIFESCIENCES CORPORATION
    Inventors: 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
  • Publication number: 20240424264
    Abstract: 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: Application
    Filed: September 10, 2024
    Publication date: December 26, 2024
    Inventors: 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
  • Publication number: 20240423664
    Abstract: 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: Application
    Filed: August 30, 2024
    Publication date: December 26, 2024
    Inventors: Tyler Poon, Steven Park, Anne Bernadette Aragon Alcasid, Michael G. Valdez
  • Publication number: 20240424286
    Abstract: 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: Application
    Filed: September 3, 2024
    Publication date: December 26, 2024
    Inventors: Hien T. Nguyen, Daniel James Murray, Michael G. Valdez, Yair A. Neumann, Anne Bernadette Aragon Alcasid, Amir Davidesko, Steven Park, Sofia Rozenberg
  • Publication number: 20240399123
    Abstract: 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: Application
    Filed: August 13, 2024
    Publication date: December 5, 2024
    Inventors: Michael G. Valdez, Tiana Tran
  • Publication number: 20240399137
    Abstract: 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 width
    Type: Application
    Filed: August 8, 2024
    Publication date: December 5, 2024
    Inventors: Michael G. Valdez, Hien T. Nguyen
  • Publication number: 20240268808
    Abstract: 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: Application
    Filed: April 26, 2024
    Publication date: August 15, 2024
    Inventors: Anne Bernadette Aragon Alcasid, Yoon Hee Kwon, Tiana Tran, Kokou Anani Amefia, Sydney Jade Fletcher, James G. Wittel, Bianca Xochitl Aleman, Michael G. Valdez
  • Publication number: 20240268960
    Abstract: 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: Application
    Filed: February 29, 2024
    Publication date: August 15, 2024
    Inventors: 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
  • Publication number: 20240115379
    Abstract: 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: Application
    Filed: December 16, 2023
    Publication date: April 11, 2024
    Inventors: Walter Lee, Mark M. Dehdashtian, Teodoro S. Jimenez, Gilbert S. Leung, Bryan A. Janish, Michael G. Valdez, Tram Ngoc Nguyen, Timothy C. Ulrich
  • Publication number: 20240108877
    Abstract: 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: Application
    Filed: December 7, 2023
    Publication date: April 4, 2024
    Inventors: Hien T. Nguyen, Michael G. Valdez
  • Publication number: 20240090842
    Abstract: 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: Application
    Filed: November 17, 2023
    Publication date: March 21, 2024
    Inventors: Arvin T. Chang, Jean-Pierre Michel Rabbah, Kokou Anani Amefia, Michael G. Valdez, Steven McConnell
  • Publication number: 20240090841
    Abstract: 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: Application
    Filed: November 17, 2023
    Publication date: March 21, 2024
    Inventors: Michael G. Valdez, Julie Ann Hinzman, Rani Abdullah Mahmoudi, Arvin T. Chang
  • Publication number: 20240081993
    Abstract: 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: Application
    Filed: November 17, 2023
    Publication date: March 14, 2024
    Inventor: Michael G. Valdez
  • Publication number: 20240081742
    Abstract: 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: Application
    Filed: November 14, 2023
    Publication date: March 14, 2024
    Inventors: Michael G. Valdez, Tiana Tran
  • Patent number: 11877929
    Abstract: 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: Grant
    Filed: April 6, 2020
    Date of Patent: January 23, 2024
    Assignee: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Walter Lee, Mark M. Dehdashtian, Teodoro S. Jimenez, Gilbert S. Leung, Bryan A. Janish, Michael G. Valdez, Tram Ngoc Nguyen, Timothy C. Ulrich
  • Patent number: 11857416
    Abstract: 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: Grant
    Filed: April 3, 2020
    Date of Patent: January 2, 2024
    Assignee: EDWARDS LIFESCIENCES CORPORATION
    Inventor: Michael G. Valdez
  • Publication number: 20230414117
    Abstract: 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: Application
    Filed: September 13, 2023
    Publication date: December 28, 2023
    Inventor: Michael G. Valdez