Patents by Inventor Hung Ha

Hung Ha 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).

  • Patent number: 12102782
    Abstract: Devices, systems, and methods for performing thrombectomy procedures are disclosed herein. The devices can include an aspiration catheter which optionally has a beveled distal end. The aspiration catheter is advanced to a position adjacent a thrombus. A blocking element can be expanded near the distal end of the aspiration catheter to block fluid flow during the procedure. The devices can include a thrombus retrieval device supporting a braided assembly that grips and facilitates removal of the thrombus. The braided assembly is expandable to a range of expanded outer diameters by varying the level of tension in an activation wire attached thereto. An expander can be deployed beneath the braided assembly to exert an outward expansion force upon the braid, thereby increasing the grip between the braided assembly and the thrombus. The braided assembly contacts the thrombus and the retrieval device pulls it proximally toward the aspiration catheter.
    Type: Grant
    Filed: January 27, 2023
    Date of Patent: October 1, 2024
    Assignee: Contego Medical, Inc.
    Inventors: Ajit Nair, Ravish Sachar, Hung Ha
  • Publication number: 20230233818
    Abstract: Devices, systems, and methods for performing thrombectomy procedures are disclosed herein. The devices can include an aspiration catheter which optionally has a beveled distal end. The aspiration catheter is advanced to a position adjacent a thrombus. A blocking element can be expanded near the distal end of the aspiration catheter to block fluid flow during the procedure. The devices can include a thrombus retrieval device supporting a braided assembly that grips and facilitates removal of the thrombus. The braided assembly is expandable to a range of expanded outer diameters by varying the level of tension in an activation wire attached thereto. An expander can be deployed beneath the braided assembly to exert an outward expansion force upon the braid, thereby increasing the grip between the braided assembly and the thrombus. The braided assembly contacts the thrombus and the retrieval device pulls it proximally toward the aspiration catheter.
    Type: Application
    Filed: January 27, 2023
    Publication date: July 27, 2023
    Inventors: Ajit Nair, Ravish Sachar, Hung Ha
  • Publication number: 20230103258
    Abstract: The device disclosed herein is used to the remove a thrombus from the vasculature. It includes an aspiration catheter and a thrombus retrieval device that extends through the lumen of the aspiration catheter. An expandable braided assembly extends over a distal region of the retrieval device, and an activation wire extends through the lumen of the retrieval device to attach to and control the expansion of the braided assembly. Applying tension to the activation wire causes the braided assembly to expand to a diameter of the practitioner's choosing. For example, the practitioner may apply a first level of tension to the activation wire to deploy the braided assembly to a first diameter and then later change the diameter by applying a different level of tension. The expanded braided assembly contacts the thrombus and is pulled proximally toward the aspiration catheter to assist in thrombus removal.
    Type: Application
    Filed: November 1, 2022
    Publication date: March 30, 2023
    Inventors: Ravish Sachar, Eugene Serina, Hung Ha, Dave Stern
  • Patent number: 11490908
    Abstract: The device disclosed herein is used to the remove a thrombus from the vasculature. It includes an aspiration catheter and a thrombus retrieval device that extends through the lumen of the aspiration catheter. An expandable braided assembly extends over a distal region of the retrieval device, and an activation wire extends through the lumen of the retrieval device to attach to and control the expansion of the braided assembly. Applying tension to the activation wire causes the braided assembly to expand to a diameter of the practitioner's choosing. For example, the practitioner may apply a first level of tension to the activation wire to deploy the braided assembly to a first diameter and then later change the diameter by applying a different level of tension. The expanded braided assembly contacts the thrombus and is pulled proximally toward the aspiration catheter to assist in thrombus removal.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: November 8, 2022
    Assignee: Contego Medical , Inc.
    Inventors: Ravish Sachar, Eugene Serina, Hung Ha, Dave Stern
  • Publication number: 20190167407
    Abstract: Methods of treating COPD, including bronchoscopically positioning a lung anchor in lung tissue, positioning an outer implant member in pleural space proximate the lung anchor, and coupling the lung anchor to the outer implant member and thereby compressing lung tissue.
    Type: Application
    Filed: August 4, 2017
    Publication date: June 6, 2019
    Inventors: Alan SCHAER, Tom SAUL, Amr SALAHIEH, Lilip LAU, Don TANAKA, Sid GANDIONCO, Hung HA, Arindam DATTA
  • Publication number: 20190133616
    Abstract: The device disclosed herein is used to the remove a thrombus from the vasculature. It includes an aspiration catheter and a thrombus retrieval device that extends through the lumen of the aspiration catheter. An expandable braided assembly extends over a distal region of the retrieval device, and an activation wire extends through the lumen of the retrieval device to attach to and control the expansion of the braided assembly. Applying tension to the activation wire causes the braided assembly to expand to a diameter of the practitioner's choosing. For example, the practitioner may apply a first level of tension to the activation wire to deploy the braided assembly to a first diameter and then later change the diameter by applying a different level of tension. The expanded braided assembly contacts the thrombus and is pulled proximally toward the aspiration catheter to assist in thrombus removal.
    Type: Application
    Filed: November 9, 2018
    Publication date: May 9, 2019
    Inventors: Ravish Sachar, Eugene Serina, Hung Ha, Dave Stern
  • Patent number: 9055965
    Abstract: Sinusitis and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches with flexible or rigid instruments. Various methods and devices are used for remodeling or changing the shape, size or configuration of a sinus ostium or duct or other anatomical structure in the ear, nose or throat; implanting a device, cells or tissues; removing matter from the ear, nose or throat; delivering diagnostic or therapeutic substances or performing other diagnostic or therapeutic procedures. Introducing devices (e.g., guide catheters, tubes, guidewires, elongate probes, other elongate members) may be used to facilitate insertion of working devices (e.g. catheters e.g. balloon catheters, guidewires, tissue cutting or remodeling devices, devices for implanting elements like stents, electrosurgical devices, energy emitting devices, devices for delivering diagnostic or therapeutic agents, substance delivery implants, scopes etc.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: June 16, 2015
    Assignee: Acclarent, Inc.
    Inventors: John Y. Chang, Joshua Makower, Julia D. Vrany, John H. Morriss, Ketan P. Muni, Isaac J. Kim, Hung Ha, William M. Facteau, Amrish Jayprakash Walke
  • Patent number: 8828041
    Abstract: Sinusitis and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches with flexible or rigid instruments. Various methods and devices are used for remodeling or changing the shape, size or configuration of a sinus ostium or duct or other anatomical structure in the ear, nose or throat; implanting a device, cells or tissues; removing matter from the ear, nose or throat; delivering diagnostic or therapeutic substances or performing other diagnostic or therapeutic procedures. Introducing devices (e.g., guide catheters, tubes, guidewires, elongate probes, other elongate members) may be used to facilitate insertion of working devices (e.g. catheters e.g. balloon catheters, guidewires, tissue cutting or remodeling devices, devices for implanting elements like stents, electrosurgical devices, energy emitting devices, devices for delivering diagnostic or therapeutic agents, substance delivery implants, scopes etc.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: September 9, 2014
    Assignee: Acclarent, Inc.
    Inventors: John Y. Chang, Joshua Makower, Julia D. Vrany, John H. Morriss, Ketan P. Muni, Isaac J. Kim, Hung Ha, William M. Facteau, Amrish Jayprakash Walke
  • Patent number: 8764726
    Abstract: Sinusitis and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches with flexible or rigid instruments. Various methods and devices are used for remodeling or changing the shape, size or configuration of a sinus ostium or duct or other anatomical structure in the ear, nose or throat; implanting a device, cells or tissues; removing matter from the ear, nose or throat; delivering diagnostic or therapeutic substances or performing other diagnostic or therapeutic procedures. Introducing devices (e.g., guide catheters, tubes, guidewires, elongate probes, other elongate members) may be used to facilitate insertion of working devices (e.g. catheters e.g. balloon catheters, guidewires, tissue cutting or remodeling devices, devices for implanting elements like stents, electrosurgical devices, energy emitting devices, devices for delivering diagnostic or therapeutic agents, substance delivery implants, scopes etc.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: July 1, 2014
    Assignee: Acclarent, Inc.
    Inventors: John Y. Chang, Joshua Makower, Julia D. Vrany, John H. Morriss, Ketan P Muni, Isaac J Kim, Hung Ha, William J Facteau, Amrish Jayprakash Walke
  • Patent number: 8715169
    Abstract: Sinusitis and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches with flexible or rigid instruments. Various methods and devices are used for remodeling or changing the shape, size or configuration of a sinus ostium or duct or other anatomical structure in the ear, nose or throat; implanting a device, cells or tissues; removing matter from the ear, nose or throat; delivering diagnostic or therapeutic substances or performing other diagnostic or therapeutic procedures. Introducing devices (e.g., guide catheters, tubes, guidewires, elongate probes, other elongate members) may be used to facilitate insertion of working devices (e.g. catheters e.g. balloon catheters, guidewires, tissue cutting or remodeling devices, devices for implanting elements like stents, electrosurgical devices, energy emitting devices, devices for delivering diagnostic or therapeutic agents, substance delivery implants, scopes etc.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: May 6, 2014
    Assignee: Acclarent, Inc.
    Inventors: John Y. Chang, Joshua Makower, Julia D. Vrany, John H. Morriss, Ketan P. Muni, Isaac J. Kim, Hung Ha, William M. Facteau, Amrish Jayprakash Walke
  • Publication number: 20120051643
    Abstract: The present invention is a method and system that automates the process of locating and identifying railcars in a rail yard. The method and system of this invention creates an electronic record of a railcar identification number that is stenciled to the side of the railcar using digital camera technology and an Optical Character Recognition (OCR) device and software applications. The method and system of the present invention eliminates the need for using the AEI portable reader.
    Type: Application
    Filed: August 25, 2010
    Publication date: March 1, 2012
    Applicant: E. I. Systems, Inc.
    Inventors: Hung Ha, Hoa Ha
  • Publication number: 20120054218
    Abstract: The present invention is a web-based rail yard inventory system. This invention provides a user with the ability to access the rail yard management information from any computing that can access a computing network. This invention provides the capability to monitor and modify railcar locations in a rail yard, generate email alerts and rail car reports that are shown on a display screen to a client. In the configuration of this invention, a server device contains software applications for clients with equipment in a particular rail yard. The rail yard is the manager of the inventory system and maintains in the system software related to each client with equipment in the rail yard.
    Type: Application
    Filed: August 25, 2010
    Publication date: March 1, 2012
    Applicant: E. I. Systems, Inc.
    Inventors: Hung Ha, Hoa Ha
  • Patent number: 7803150
    Abstract: Sinusitis and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches with flexible or rigid instruments. Various methods and devices are used for remodeling or changing the shape, size or configuration of a sinus ostium or duct or other anatomical structure in the ear, nose or throat; implanting a device, cells or tissues; removing matter from the ear, nose or throat; delivering diagnostic or therapeutic substances or performing other diagnostic or therapeutic procedures. Introducing devices (e.g., guide catheters, tubes, guidewires, elongate probes, other elongate members) may be used to facilitate insertion of working devices (e.g. catheters e.g. balloon catheters, guidewires, tissue cutting or remodeling devices, devices for implanting elements like stents, electrosurgical devices, energy emitting devices, devices for delivering diagnostic or therapeutic agents, substance delivery implants, scopes etc.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: September 28, 2010
    Assignee: Acclarent, Inc.
    Inventors: John Y. Chang, Joshua Makower, Julia D. Vrany, John H. Morriss, Ketan P. Muni, Isaac J. Kim, Hung Ha, William M. Facteau, Amrish Jayprakash Walke
  • Patent number: 7771409
    Abstract: Sinusitis and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches with flexible or rigid instruments. Various methods and devices are used for remodeling or changing the shape, size or configuration of a sinus ostium or duct or other anatomical structure in the ear, nose or throat; implanting a device, cells or tissues; removing matter from the ear, nose or throat; delivering diagnostic or therapeutic substances or performing other diagnostic or therapeutic procedures. Introducing devices (e.g., guide catheters, tubes, guidewires, elongate probes, other elongate members) may be used to facilitate insertion of working devices (e.g. catheters e.g. balloon catheters, guidewires, tissue cutting or remodeling devices, devices for implanting elements like stents, electrosurgical devices, energy emitting devices, devices for delivering diagnostic or therapeutic agents, substance delivery implants, scopes etc.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: August 10, 2010
    Assignee: Acclarent, Inc.
    Inventors: John Y. Chang, Joshua Makower, Julia D. Vrany, John H. Morriss, Ketan P. Muni, Isaac J. Kim, Hung Ha, William M. Facteau
  • Publication number: 20100174308
    Abstract: Sinusitis and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches with flexible or rigid instruments. Various methods and devices are used for remodeling or changing the shape, size or configuration of a sinus ostium or duct or other anatomical structure in the ear, nose or throat; implanting a device, cells or tissues; removing matter from the ear, nose or throat; delivering diagnostic or therapeutic substances or performing other diagnostic or therapeutic procedures. Introducing devices (e.g., guide catheters, tubes, guidewires, elongate probes, other elongate members) may be used to facilitate insertion of working devices (e.g. catheters e.g. balloon catheters, guidewires, tissue cutting or remodeling devices, devices for implanting elements like stents, electrosurgical devices, energy emitting devices, devices for delivering diagnostic or therapeutic agents, substance delivery implants, scopes etc.
    Type: Application
    Filed: March 18, 2010
    Publication date: July 8, 2010
    Applicant: ACCLARENT, INC.
    Inventors: John Y. Chang, Joshua Makower, Julia D. Vrany, John H. Morriss, Ketan P. Muni, Isaac J. Kim, Hung Ha, William M. Facteau, Amrish Jayprakash Walke
  • Publication number: 20100174138
    Abstract: Sinusitis and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches with flexible or rigid instruments. Various methods and devices are used for remodeling or changing the shape, size or configuration of a sinus ostium or duct or other anatomical structure in the ear, nose or throat; implanting a device, cells or tissues; removing matter from the ear, nose or throat; delivering diagnostic or therapeutic substances or performing other diagnostic or therapeutic procedures. Introducing devices (e.g., guide catheters, tubes, guidewires, elongate probes, other elongate members) may be used to facilitate insertion of working devices (e.g. catheters e.g. balloon catheters, guidewires, tissue cutting or remodeling devices, devices for implanting elements like stents, electrosurgical devices, energy emitting devices, devices for delivering diagnostic or therapeutic agents, substance delivery implants, scopes etc.
    Type: Application
    Filed: March 22, 2010
    Publication date: July 8, 2010
    Applicant: ACCLARENT, INC.
    Inventors: John Y. Chang, Joshua Makower, Julia D. Vrany, John H. Morriss, Ketan P. Muni, Isaac J. Kim, Hung Ha, William M. Facteau, Amrish Jayprakash Walke
  • Publication number: 20100042046
    Abstract: Sinusitis and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches with flexible or rigid instruments. Various methods and devices are used for remodeling or changing the shape, size or configuration of a sinus ostium or duct or other anatomical structure in the ear, nose or throat; implanting a device, cells or tissues; removing matter from the ear, nose or throat; delivering diagnostic or therapeutic substances or performing other diagnostic or therapeutic procedures. Introducing devices (e.g., guide catheters, tubes, guidewires, elongate probes, other elongate members) may be used to facilitate insertion of working devices (e.g. catheters e.g. balloon catheters, guidewires, tissue cutting or remodeling devices, devices for implanting elements like stents, electrosurgical devices, energy emitting devices, devices for delivering diagnostic or therapeutic agents, substance delivery implants, scopes etc.
    Type: Application
    Filed: August 18, 2009
    Publication date: February 18, 2010
    Applicant: ACCLARENT, INC.
    Inventors: John Y. Chang, Joshua Makower, Julia D. Vrany, John H. Morriss, Ketan P Muni, Isaac J. Kim, Hung Ha, William M. Facteau, Amrish Jayprakash Walke
  • Publication number: 20090093823
    Abstract: Sinusitis and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches with flexible or rigid instruments. Various methods and devices are used for remodeling or changing the shape, size or configuration of a sinus ostium or duct or other anatomical structure in the ear, nose or throat; implanting a device, cells or tissues; removing matter from the ear, nose or throat; delivering diagnostic or therapeutic substances or performing other diagnostic or therapeutic procedures. Introducing devices (e.g., guide catheters, tubes, guidewires, elongate probes, other elongate members) may be used to facilitate insertion of working devices (e.g. catheters e.g. balloon catheters, guidewires, tissue cutting or remodeling devices, devices for implanting elements like stents, electrosurgical devices, energy emitting devices, devices for delivering diagnostic or therapeutic agents, substance delivery implants, scopes etc.
    Type: Application
    Filed: October 30, 2007
    Publication date: April 9, 2009
    Applicant: Acclarent, Inc.
    Inventors: John Y. Chang, Joshua Makower, Julia D. Vrany, John H. Morriss, Ketan P. Muni, Isaac J. Kim, Hung Ha, William M. Facteau, Amrish Jayprakash Walke
  • Publication number: 20080125626
    Abstract: Sinusitis and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches with flexible or rigid instruments. Various methods and devices are used for remodeling or changing the shape, size or configuration of a sinus ostium or duct or other anatomical structure in the ear, nose or throat; implanting a device, cells or tissues; removing matter from the ear, nose or throat; delivering diagnostic or therapeutic substances or performing other diagnostic or therapeutic procedures. Introducing devices (e.g., guide catheters, tubes, guidewires, elongate probes, other elongate members) may be used to facilitate insertion of working devices (e.g. catheters e.g. balloon catheters, guidewires, tissue cutting or remodeling devices, devices for implanting elements like stents, electrosurgical devices, energy emitting devices, devices for delivering diagnostic or therapeutic agents, substance delivery implants, scopes etc.
    Type: Application
    Filed: October 30, 2007
    Publication date: May 29, 2008
    Applicant: Acclarent, Inc.
    Inventors: John Y. Chang, Joshua Makower, Julia D. Vrany, John H. Morriss, Ketan P. Muni, Isaac J. Kim, Hung Ha, William M. Facteau, Amrish Jayprakash Walke
  • Publication number: 20080103361
    Abstract: Methods and apparatus for treating disorders of the ear, nose, throat or paranasal sinuses, including methods and apparatus for dilating ostia, passageways and other anatomical structures, endoscopic methods and apparatus for endoscopic visualization of structures within the ear, nose, throat or paranasal sinuses, navigation devices for use in conjunction with image guidance or navigation system and hand held devices having pistol type grips and other handpieces.
    Type: Application
    Filed: October 30, 2007
    Publication date: May 1, 2008
    Applicant: Acclarent, Inc.
    Inventors: Joshua Makower, John Chang, Ketan Muni, John Morriss, Hung Ha, Isaac Kim, Julia Vrany