Patents by Inventor David A. Walsh

David A. Walsh 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: 11058844
    Abstract: The disclosure relates to medical tubes and methods of manufacturing medical tubes. The tube may be a composite structure made of two or more distinct components that are spirally wound to form an elongate tube. For example, one of the components may be a spirally wound elongate hollow body, and the other component may be an elongate structural component also spirally wound between turns of the spirally wound hollow body The tube need not be made from distinct components, however. For instance, an elongate hollow body formed (e.g., extruded) from a single material may be spirally wound to form an elongate tube. The elongate hollow body itself may in transverse cross-section have a thin wall portion and a relatively thicker or more rigid reinforcement portion. The tubes can be incorporated into a variety of medical circuits or may be employed for other medical uses.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: July 13, 2021
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Christopher Jaye Norman Amadio, Elmo Benson Stoks, Charles Christopher North, Mahran Maumoon Sujau, Joshua Daniel Stroobant, Gavin Walsh Millar, Matthew Liam Buswell, Ibrahim Al-Tiay, David Leon McCauley, Andre van Schalkwyk, Katja Munkelt, Matthew Robert Wilson, Helgard Oosthuysen, Sanjay Parag Patel, Dominique Richard d'Andrea, Grant Martin Dover, Dean Antony Barker, Jonathan David Harwood
  • Publication number: 20210153913
    Abstract: An insertion assembly may include a flexible tool and a DTS guide configured to engage an intervertebral spacer having a fastener channel oriented at a first angle. The DTS guide may include a DTS guide channel oriented at the first angle which may be aligned with the fastener channel. The flexible tool may include a flexible shaft and a working member disposed at a distal end of the flexible shaft. The working member may be received through the DTS guide channel at the first angle. At least a portion of the flexible shaft adjacent the DTS guide member may flex while the working member is received through the DTS guide channel, such that a distal portion of the flexible shaft may be at a greater absolute angle relative to a DTS guide shaft than a proximal portion of the flexible shaft.
    Type: Application
    Filed: November 26, 2019
    Publication date: May 27, 2021
    Applicant: GetSet Surgical SA
    Inventors: David WALSH, Ole STOKLUND, John KAPITAN
  • Publication number: 20210154022
    Abstract: An intervertebral spacer may include a fastener channel configured to receive a fastener, a locking member channel, and a locking member. The locking member channel may include an inner wall and one or more inner wall engagement features. The locking member may include an anti-backout member, a collet retainable within the locking member channel, and one or more collet engagement features. The locking member may be rotatable within the locking member channel between an unlocked position and a locked position. The one or more collet engagement features may engage the one or more inner wall engagement features in order to retain the locking member in either the unlocked position or the locked position, such that the anti-backout member may selectively obstruct the fastener channel and prevent the fastener from backing out of the fastener channel.
    Type: Application
    Filed: November 26, 2019
    Publication date: May 27, 2021
    Applicant: GetSet Surgical SA
    Inventors: David WALSH, Ole STOKLUND, John KAPITAN
  • Publication number: 20210153879
    Abstract: An insertion assembly may include a DTS guide and an inserter tool configured to couple an intervertebral spacer having a fastener channel configured to receive a fastener and a locking member channel with a first engagement feature. The inserter tool may include a second engagement feature configured to engage the first engagement feature and removably couple the inserter tool with the intervertebral spacer. The DTS guide may include a shaft lumen configured to receive the inserter tool and slidably couple with the inserter tool. The DTS guide may also include a DTS guide channel configured to receive the fastener and a DTS guide wing. The DTS guide wing may abut against a surface of the intervertebral spacer to align the DTS guide channel with the fastener channel and guide the fastener through the DTS guide channel and into the fastener channel.
    Type: Application
    Filed: November 26, 2019
    Publication date: May 27, 2021
    Applicant: GetSet Surgical SA
    Inventors: David WALSH, Ole STOKLUND, John KAPITAN
  • Publication number: 20210062128
    Abstract: An in vitro tissue plate may include a well plate, a fluidic plate disposed on a bottom surface of the well plate, and a media manifold disposed on a bottom surface of the fluidic plate. The well plate may have at least two wells, including a tissue well and a waste well. The fluid plate may include a fluid channel extending between and fluidly connecting the tissue well to the waste well. The media manifold may include a one or more media outlets fluidly connected to the fluid channel. A tissue layer may be deposited in the tissue well. The tissue layer may include human cells such as neurovascular cells.
    Type: Application
    Filed: June 26, 2020
    Publication date: March 4, 2021
    Applicant: Massachusetts Institute of Technology
    Inventors: Johanna Bobrow, Todd Thorsen, David Walsh, Christina Zook
  • Publication number: 20200369592
    Abstract: The present disclosure provides regioselective methods for synthesizing intermediates useful in making prostacyclin derivatives, such as treprostinil.
    Type: Application
    Filed: August 12, 2020
    Publication date: November 26, 2020
    Applicant: United Therapeutics Corporation
    Inventors: Hitesh Batra, Sudersan M. Tuladhar, David A. Walsh
  • Publication number: 20200345399
    Abstract: A modular system is provided for assembling a structure to secure to opposite sides of a fracture in a bone of a subject. The modular system includes a plate with a perimeter including a plurality of openings. The perimeter defines an interior area within the plate. The modular system also includes a link with one or more openings along a linear axis defining the link. The one or more openings of the link include a connector to receive a fastener to be secured in the bone. The plurality of openings of the plate includes a first opening with an inner diameter configured to removably receive an outer diameter of the connector of the link so that the link is rotatably received within the first opening. A method is also provided for assembling the structure using the modular system and securing the assembled structure to opposite sides of the bone fracture.
    Type: Application
    Filed: April 30, 2020
    Publication date: November 5, 2020
    Inventors: Richard O. GREGORY, II, David A. WALSH, Mark Schumacher
  • Patent number: 10774027
    Abstract: The present disclosure provides regioselective methods for synthesizing intermediates useful in making prostacyclin derivatives, such as treprostinil.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: September 15, 2020
    Assignee: United Therapeutics Corporation
    Inventors: Hitesh Batra, Sudersan M. Tuladhar, David A. Walsh
  • Patent number: 10679141
    Abstract: An identity and access management IAM system is augmented to provide for supervised, iterative machine learning (ML), preferably with a user-generated training set for classification. The training set may include various types of data, including characteristics or attributes of the account types, the users, or the like. A goal of the initial ML training, which may include one or multiple passes, is to enable the machine to identify specific characteristics or attributes that provide a good classification result, with the resulting classifications then applied within the IAM system. In particular, the output of the ML system may be used by the IAM system for enforcing rights associated with the identified accounts, managing accounts, and so forth.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: June 9, 2020
    Assignee: International Business Machines Corporation
    Inventors: Brian Robert Matthiesen, Gee Ngoo Chia, John Leslie Harter, David Walsh Palmieri
  • Patent number: 10640481
    Abstract: The present invention is directed to methods for preparing Beraprost and novel synthetic intermediates for Beraprost.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: May 5, 2020
    Assignee: Lung Biotechnology PBC
    Inventors: Hitesh Batra, Sudersan M. Tuladhar, Sri Harsha Tummala, Raju Penmasta, David A. Walsh
  • Patent number: 10548863
    Abstract: This present invention relates to an improved process to prepare prostacyclin derivatives. One embodiment provides for an improved process to convert benzindene triol to treprostinil via salts of treprostinil and to purify treprostinil.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: February 4, 2020
    Assignee: United Therapeutics Corporation
    Inventors: Hitesh Batra, Sudersan M. Tuladhar, Raju Penmasta, David A. Walsh
  • Publication number: 20200030271
    Abstract: This present invention relates to an improved process to prepare prostacyclin derivatives. One embodiment provides for an improved process to convert benzindene triol to treprostinil via salts of treprostinil and to purify treprostinil.
    Type: Application
    Filed: October 7, 2019
    Publication date: January 30, 2020
    Applicant: United Therapeutics Corporation
    Inventors: Hitesh BATRA, Sudersan M. TULADHAR, Raju PENMASTA, David A. WALSH
  • Patent number: 10478410
    Abstract: This present invention relates to an improved process to prepare prostacyclin derivatives. One embodiment provides for an improved process to convert benzindene triol to treprostinil via salts of treprostinil and to purify treprostinil.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: November 19, 2019
    Assignee: United Therapeutics Corporation
    Inventors: Hitesh Batra, Sudersan M. Tuladhar, Raju Penmasta, David A. Walsh
  • Publication number: 20190233362
    Abstract: The present disclosure provides regioselective methods for synthesizing intermediates useful in making prostacyclin derivatives, such as treprostinil.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 1, 2019
    Applicant: United Therapeutics Corporation
    Inventors: Hitesh Batra, Sudersan M. Tuladhar, David A. Walsh
  • Publication number: 20190202797
    Abstract: The present invention is directed to methods for preparing Beraprost and novel synthetic intermediates for Beraprost.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Applicant: Lung Biotechnology PBC
    Inventors: Hitesh Batra, Sudersan M. Tuladhar, Sri Harsha Tummala, Raju Penmasta, David A. Walsh
  • Patent number: 10322099
    Abstract: This present invention relates to an improved process to prepare prostacyclin derivatives. One embodiment provides for an improved process to convert benzindene triol to treprostinil via salts of treprostinil and to purify treprostinil.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: June 18, 2019
    Assignee: UNITED THERAPEUTICS CORPORATION
    Inventors: Hitesh Batra, Sudersan M. Tuladhar, Raju Penmasta, David A. Walsh
  • Patent number: 10246430
    Abstract: The present invention is directed to methods for preparing Beraprost and novel synthetic intermediates for Beraprost.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: April 2, 2019
    Assignee: Lung Biotechnology PBC
    Inventors: Hitesh Batra, Sudersan M. Tuladhar, Sri Harsha Tummala, Raju Penmasta, David A. Walsh
  • Patent number: 10196342
    Abstract: The present disclosure provides regioselective methods for synthesizing intermediates useful in making prostacyclin derivatives, such as treprostinil.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: February 5, 2019
    Assignee: United Therapeutics Corporation
    Inventors: Hitesh Batra, Sudersan M. Tuladhar, David A. Walsh
  • Publication number: 20180265490
    Abstract: The present invention is directed to methods for preparing Beraprost and novel synthetic intermediates for Beraprost.
    Type: Application
    Filed: May 4, 2018
    Publication date: September 20, 2018
    Applicant: Lung Biotechnology PBC
    Inventors: Hitesh Batra, Sudersan M. Tuladhar, Sri Tummala, Raju Penmasta, David A. Walsh
  • Patent number: D925740
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: July 20, 2021
    Inventors: John Kapitan, Ole Stoklund, David Walsh