Patents by Inventor Chase Fetzer

Chase Fetzer 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: 11806513
    Abstract: Plunger rod stops attach to existing syringes to limit the range of motion of the plunger, thereby to precisely control the amount of liquid that can be expelled from the syringe when the plunger rod stop is in place. In some embodiments, plunger rod stop devices generally include a body configured to attach to the plunger, and a stand-off extending from the body, configured to contact the finger flange when the plunger is depressed. In other embodiments, the plunger rod stop attaches to the finger flange or other fixed component of the syringe and the stand-off is configured to contact the plunger or plunger rod. Methods of the invention involve using the devices to interfere with the range of motion of the plunger, then reconfiguring or removing the device to allow the plunger to be moved a predetermined length, which corresponds to a precise dosage amount.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: November 7, 2023
    Assignee: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Steve Bowman, Chase Fetzer, Richard Braga, Evi Shiakolas
  • Publication number: 20230304899
    Abstract: The present disclosure is directed to a device for screening pre-filled syringes configured to determine whether a stopper position within each syringe falls within an acceptable tolerance prior to final assembly of a syringe into a corresponding autoinjector device, thereby ensuring proper fit of the syringe within the autoinjector device and further ensuring accurate delivery of a desired dose of fluid from the syringe during operation of the autoinjector.
    Type: Application
    Filed: March 24, 2023
    Publication date: September 28, 2023
    Inventors: Chase FETZER, Evi SHIAKOLAS
  • Publication number: 20230143477
    Abstract: A subcutaneous port assembly includes a base, a connector, a stem, a sealing element, and a locking member. The connector extends from a first end attached to the base to a distal end and includes an inner surface defining a socket having an inside diameter. The stem extends from the base and into the socket. The stem includes an outer surface having an outside diameter that is less than the inside diameter of the socket. The sealing element is disposed within the socket between the stem and the inner surface of the socket. The locking member has a plunger received within the socket from the distal end and having a terminal end facing the sealing element. The plunger is axially movable between a first position and a second position to selectively compress the sealing element within the socket.
    Type: Application
    Filed: April 2, 2021
    Publication date: May 11, 2023
    Applicant: Takeda Pharmaceutical Company Limited
    Inventors: Ayesha Arzumand, Chris Tarapata, Marc Bellisario, Christel Hartshorn, Matthew J. Gunn, Chase Fetzer
  • Patent number: 11614381
    Abstract: The present disclosure is directed to a device for screening pre-filled syringes configured to determine whether a stopper position within each syringe falls within an acceptable tolerance prior to final assembly of a syringe into a corresponding autoinjector device, thereby ensuring proper fit of the syringe within the autoinjector device and further ensuring accurate delivery of a desired dose of fluid from the syringe during operation of the autoinjector.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: March 28, 2023
    Assignee: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Chase Fetzer, Evi Shiakolas
  • Publication number: 20210275751
    Abstract: Plunger rod stops attach to existing syringes to limit the range of motion of the plunger, thereby to precisely control the amount of liquid that can be expelled from the syringe when the plunger rod stop is in place. In some embodiments, plunger rod stop devices generally include a body configured to attach to the plunger, and a stand-off extending from the body, configured to contact the finger flange when the plunger is depressed. In other embodiments, the plunger rod stop attaches to the finger flange or other fixed component of the syringe and the stand-off is configured to contact the plunger or plunger rod. Methods of the invention involve using the devices to interfere with the range of motion of the plunger, then reconfiguring or removing the device to allow the plunger to be moved a predetermined length, which corresponds to a precise dosage amount.
    Type: Application
    Filed: May 13, 2021
    Publication date: September 9, 2021
    Applicant: Shire Human Genetic Therapies, Inc.
    Inventors: Steve BOWMAN, Chase FETZER, Richard BRAGA, Evi SHIAKOLAS
  • Patent number: 11013864
    Abstract: Plunger rod stops attach to existing syringes to limit the range of motion of the plunger, thereby to precisely control the amount of liquid that can be expelled from the syringe when the plunger rod stop is in place. In some embodiments, plunger rod stop devices generally include a body configured to attach to the plunger, and a stand-off extending from the body, configured to contact the finger flange when the plunger is depressed. In other embodiments, the plunger rod stop attaches to the finger flange or other fixed component of the syringe and the stand-off is configured to contact the plunger or plunger rod. Methods of the invention involve using the devices to interfere with the range of motion of the plunger, then reconfiguring or removing the device to allow the plunger to be moved a predetermined length, which corresponds to a precise dosage amount.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: May 25, 2021
    Assignee: Shire Human Genetic Therapies, Inc.
    Inventors: Steve Bowman, Chase Fetzer, Richard Braga, Evi Shiakolas
  • Publication number: 20190250070
    Abstract: The present disclosure is directed to a device for screening pre-filled syringes configured to determine whether a stopper position within each syringe falls within an acceptable tolerance prior to final assembly of a syringe into a corresponding autoinjector device, thereby ensuring proper fit of the syringe within the autoinjector device and further ensuring accurate delivery of a desired dose of fluid from the syringe during operation of the autoinjector.
    Type: Application
    Filed: February 6, 2019
    Publication date: August 15, 2019
    Inventors: Chase Fetzer, Evi Shiakolas
  • Publication number: 20180126085
    Abstract: Plunger rod stops attach to existing syringes to limit the range of motion of the plunger, thereby to precisely control the amount of liquid that can be expelled from the syringe when the plunger rod stop is in place. In some embodiments, plunger rod stop devices generally include a body configured to attach to the plunger, and a stand-off extending from the body, configured to contact the finger flange when the plunger is depressed. In other embodiments, the plunger rod stop attaches to the finger flange or other fixed component of the syringe and the stand-off is configured to contact the plunger or plunger rod. Methods of the invention involve using the devices to interfere with the range of motion of the plunger, then reconfiguring or removing the device to allow the plunger to be moved a predetermined length, which corresponds to a precise dosage amount.
    Type: Application
    Filed: November 6, 2017
    Publication date: May 10, 2018
    Inventors: Steve Bowman, Chase Fetzer, Richard Braga, Evi Shiakolas
  • Publication number: 20150057608
    Abstract: Delivery devices and components thereof are disclosed. In an embodiment, a delivery device may include a barrel holding a liquid for delivery. The delivery device may also include a finger flange assembly coupled to the barrel. The finger flange assembly may include a first flange and a second flange each extending laterally from opposite sides of the finger flange assembly, wherein the first flange and the second flange each curve toward the barrel. The delivery device may also include a plunger coupled to the barrel and passing through the finger flange assembly. The plunger may also include a disc-shaped head.
    Type: Application
    Filed: March 28, 2013
    Publication date: February 26, 2015
    Inventors: Carl F. Hitscherich, JR., Soham Bhatt, Nam Chen, Chase Fetzer
  • Patent number: D751705
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: March 15, 2016
    Assignee: Biogen MA Inc.
    Inventors: Carl F. Hitscherich, Jr., Soham Bhatt, Nam Chen, Chase Fetzer