Patents by Inventor John Y. Chang

John Y. Chang 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: 11304793
    Abstract: Methods and devices for relieving stenoses in, or otherwise improving blood flow through, body lumens. Although applicable in a variety of different body lumens, the methods and devices of this invention are specifically useable for relieving stenoses in, or otherwise improving blood flow through, veins which drain blood from the brain for treatment of multiple sclerosis or other neurodegenerative disorders that are caused, triggered or exacerbated by venous occlusion or venous insufficiency.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: April 19, 2022
    Assignee: ExploraMed Development, LLC
    Inventors: Joshua Makower, Earl A. Bright, II, Theodore M. Bender, Joseph Catanese, III, John Y. Chang, Thomas King, Clinton Slone, Theodore C. Lamson, Aziz Imraan
  • Patent number: 11207087
    Abstract: A guide catheter for use in treating sinuses, the catheter including a catheter shaft configured to provide suction about a balloon catheter and a distal portion shaped for navigating body anatomy. In one embodiment, the guide catheter includes a valve for sealing the balloon catheter and a vent for controlling suction.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: December 28, 2021
    Assignee: Acclarent, Inc.
    Inventors: John Y. Chang, Eric Goldfarb, Serena Swei Loh, Mei Y. Pader, Michael J. Gottesman, Richard R. Newhauser, Jr.
  • Patent number: 11185619
    Abstract: Systems and methods for pumping milk from a breast responsive to a controller, wherein the milk is expressed from the breast under suction and milk is expulsed from the pumping mechanism to a collection container under positive pressure.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: November 30, 2021
    Assignee: Willow Innovations, Inc.
    Inventors: John Y. Chang, Joshua Makower, Brendan M. Donohoe, Michele Torosis
  • Publication number: 20210338144
    Abstract: Systems and methods for assessing milk volume changes within a breast are described. Also described are systems and methods for assessing volume changes in the stomach of an infant.
    Type: Application
    Filed: July 19, 2021
    Publication date: November 4, 2021
    Inventors: Joshua Makower, John Y. Chang, Theodore M. Bender, Brendan M. Donohoe
  • Patent number: 11165661
    Abstract: Provided are techniques for grouping resources based upon ownership in a cloud environment into a collection representing a composite application corresponding to a particular user; automatically monitoring the resources across two or more virtual machines and two or more physical computing devices; and displaying the monitored resources in a graphical user interface (GUI) in a context associated with the composite application for managing the composite application and the resources, wherein the resources are provided as one or more of a platform as service (PaaS) environment and an infrastructure as Service (IaaS) environment.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: November 2, 2021
    Assignee: International Business Machines Corporation
    Inventors: John Y. Chang, Ching Y. Chao, Timothy L. Land, Lorne D. Long, James N. Paterson, David M. Reichek, John C. Sanchez, Donald R. Woods
  • Patent number: 11165660
    Abstract: Provided are techniques for grouping resources based upon ownership in a cloud environment into a collection representing a composite application corresponding to a particular user; automatically monitoring the resources across two or more virtual machines and two or more physical computing devices; and displaying the monitored resources in a graphical user interface (GUI) in a context associated with the composite application for managing the composite application and the resources, wherein the resources are provided as one or more of a platform as service (PaaS) environment and an infrastructure as Service (IaaS) environment.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: November 2, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: John Y. Chang, Ching Y. Chao, Timothy L. Land, Lorne D. Long, James N. Paterson, David M. Reichek, John C. Sanchez, Donald R. Woods
  • Publication number: 20210315448
    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: April 29, 2021
    Publication date: October 14, 2021
    Inventors: Joshua Makower, John Y. Chang, Ketan P. Muni, John H. Morriss, Hung V. Ha, Isaac J. Kim, Julia D. Vrany
  • Patent number: 11089991
    Abstract: Systems and methods for assessing milk volume changes within a breast are described. Also described are systems and methods for assessing volume changes in the stomach of an infant.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: August 17, 2021
    Assignee: Willow Innovations, Inc.
    Inventors: Joshua Makower, John Y Chang, Theodore M Bender, Brendan M Donohoe
  • Patent number: 11019989
    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: Grant
    Filed: November 3, 2017
    Date of Patent: June 1, 2021
    Assignee: Acclarent, Inc.
    Inventors: Joshua Makower, John Y. Chang, Ketan P. Muni, John H. Morriss, Hung V. Ha, Isaac J. Kim, Julia D. Vrany
  • Publication number: 20210015352
    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: September 25, 2020
    Publication date: January 21, 2021
    Inventors: Joshua Makower, John Y. Chang, Ketan P. Muni, John H. Morriss, Hung V. Ha, Isaac J. Kim, Julia D. Vrany
  • Publication number: 20210007762
    Abstract: Sinusitis, enlarged nasal turbinates, tumors, infections, hearing disorders, allergic conditions, facial fractures and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches and, in many cases, flexible catheters as opposed to instruments having rigid shafts. Various diagnostic procedures and devices are used to perform imaging studies, mucus flow studies, air/gas flow studies, anatomic dimension studies, endoscopic studies and transillumination studies. Access and occluder devices may be used to establish fluid tight seals in the anterior or posterior nasal cavities/nasopharynx and to facilitate insertion of working devices (e.g., scopes, guidewires, catheters, tissue cutting or remodeling devices, electrosurgical devices, energy emitting devices, devices for injecting diagnostic or therapeutic agents, devices for implanting devices such as stents, substance eluting devices, substance delivery implants, etc.
    Type: Application
    Filed: June 26, 2020
    Publication date: January 14, 2021
    Inventors: John Y. Chang, Joshua Makower
  • Patent number: 10874838
    Abstract: Devices, systems and methods useable for dilating the ostia of paranasal sinuses and/or other passageways within the ear, nose or throat. A dilation catheter device and system is constructed in a manner that facilitates ease of use by the operator and, in at least some cases, allows the dilation procedure to be performed by a single operator. Additionally, the dilation catheter device and system may be useable in conjunction with an endoscope and/or a fluoroscope to provide for easy manipulation and positioning of the devices and real time visualization of the entire procedure or selected portions thereof. In some embodiments, an optional handle may be used to facilitate grasping or supporting a device of the present invention as well as another device (e.g., an endoscope) with a single hand.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: December 29, 2020
    Assignee: Acclarent, Inc.
    Inventors: Eric Goldfarb, John Y. Chang, William M. Facteau, Sivette Lam, Hung V. Ha, Isaac J. Kim, Ketan P. Muni
  • Patent number: 10856727
    Abstract: Medical devices, systems and methods that are useable to facilitate transnasal insertion and positioning of guidewires and various other devices and instruments at desired locations within the ear, nose, throat, paranasal sinuses or cranium.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: December 8, 2020
    Assignee: Acclarent, Inc.
    Inventors: Eric Goldfarb, John H. Morriss, John Y. Chang
  • Patent number: 10842978
    Abstract: Balloon catheter, guide catheter and method for dilating openings in paranasal sinuses. A non-removable guide member (e.g., guidewire) extends from the distal end of the balloon catheter. The non-removable guide member initially passes through the opening of the paranasal sinus and is followed by the catheter body on which the balloon is mounted. The balloon is then inflated causing dilation of the opening of the paranasal sinus. In some embodiments, the non-removable guide member may be shapeable so that the operator may place the non-removable guide member in a desired shape prior to insertion of the balloon catheter. In some embodiments, the length of the non-removable guide member may be adjustable such that the operator may adjust the length of the non-removable guide member prior to insertion of the balloon catheter.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: November 24, 2020
    Assignee: Acclarent, Inc.
    Inventors: Philip C. Evard, Ketan P. Muni, John H. Morriss, John Y. Chang
  • Publication number: 20200345907
    Abstract: Systems and methods for pumping milk from a breast, wherein the milk is expressed from the breast under suction and milk is expulsed from the pumping mechanism to a collection container under positive pressure. In one approach, the breast pump assembly includes a breast adapter and a receptacle configured to cup the breast adapter, and the breast adapter is removable from the receptacle.
    Type: Application
    Filed: July 21, 2020
    Publication date: November 5, 2020
    Inventors: JOSHUA MAKOWER, John Y. Chang, Brendan M. Donohoe, Sharon Lam Wang, Michele Torosis, Earl Bright, II
  • Patent number: 10813547
    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: Grant
    Filed: October 27, 2017
    Date of Patent: October 27, 2020
    Assignee: Acclarent, Inc.
    Inventors: Joshua Makower, John Y. Chang, Ketan P. Muni, John H. Morriss, Hung V. Ha, Isaac J. Kim, Julia D. Vrany
  • Patent number: 10806477
    Abstract: A dilation catheter device and system for dilating an opening in a paranasal sinus and/or other passageways within the ear, nose or throat is disclosed. A dilation catheter device and system is constructed in a manner that facilitates ease of use by the operator and, in at least some cases, allows the dilation procedure to be performed by a single operator. Additionally, the dilation catheter device and system may be useable in conjunction with an endoscope and/or a fluoroscope to provide for easy manipulation and positioning of the devices and real time visualization of the entire procedure or selected portions thereof. In some embodiments, shaft markers are disposed on a shaft of the dilation catheter and have a light color to contrast with a dark color of the dilation catheter shaft. The high contrast between the markers and catheter shaft allows for easy viewing of the markers in low light and operation conditions.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: October 20, 2020
    Assignee: Acclarent, Inc.
    Inventors: Eric Goldfarb, John Y. Chang, William M. Facteau, Sivette Lam, Hung V. Ha, Isaac J. Kim, Ketan P. Muni
  • Patent number: 10722624
    Abstract: Systems and methods for pumping milk from a breast, wherein the milk is expressed from the breast under suction and milk is expulsed from the pumping mechanism to a collection container under positive pressure. In one approach, the breast pump assembly includes a breast adapter and a receptacle configured to cup the breast adapter, and the breast adapter is removable from the receptacle.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: July 28, 2020
    Assignee: ExploraMed NC7, Inc.
    Inventors: Joshua Makower, John Y. Chang, Brendan M. Donohoe, Sharon Lam Wang, Michele Torosis, Earl Bright, II
  • Patent number: 10716629
    Abstract: Devices and methods for visually confirming the positioning of a distal end portion of an illuminating device placed within a patient include inserting a distal end portion of an illuminating device internally into a patient, emitting light from the distal end portion of the illuminating device, observing transillumination resulting from the light emitted from the distal end portion of the illuminating device that occurs on an external surface of the patient, and correlating the location of the observed transillumination on the external surface of the patient with an internal location of the patient that underlies the location of observed transillumination, to confirm positioning of the distal end portion of the illuminating device.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: July 21, 2020
    Assignee: Acclarent, Inc.
    Inventors: Eric Goldfarb, John H. Morriss, John Y. Chang, William M. Facteau
  • Patent number: 10695537
    Abstract: A method for dilating a stenotic region in an airway of a patient may include advancing a balloon catheter through the airway of the patient to position an inflatable balloon of the catheter within at least a portion of the stenotic region, maintaining a position of the catheter relative to the patient, and inflating the balloon of the catheter to dilate the stenotic region of the airway. A system for dilating a stenotic region in an airway of a patient may include a catheter shaft having an overall length of less than 70 cm, an inflatable balloon disposed along a distal portion of the catheter shaft, and a stylet.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: June 30, 2020
    Assignee: Acclarent, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, Chi Nguyen, Randy S. Chan, John Y. Chang