Patents by Inventor Mina M. Leung

Mina M. Leung 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: 11975181
    Abstract: An injection system includes a molded body member having a body connection member at a distal end of the molded body member. The system also includes a needle hub assembly coupled to the distal end of the molded body member. The needle hub assembly includes a needle hub coupled to the body connection member of the molded body member, a needle coupled to the needle hub, and a barbed band disposed around a proximal end of the needle hub and having a barb. The barbed band allows rotation of the needle hub assembly relative to the body connection member in a first direction, while preventing rotation of the needle hub assembly relative to the body connection member in a second direction.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: May 7, 2024
    Assignee: Credence MedSystems, Inc.
    Inventors: Mina M. Leung, Jeff Tillack, Stephen H. Diaz, Alan E. Shluzas
  • Publication number: 20240050662
    Abstract: A system for injecting includes a syringe body defining a proximal opening and a distal needle interface. The system also includes a plunger member defining a plunger interior and configured to be manually manipulated to insert a stopper member relative to the syringe body. The plunger member includes a needle retention feature disposed in the plunger interior, an energy-storage member disposed in the plunger interior, and an energy-storage member latching member disposed in the plunger interior. The system further includes a needle hub assembly coupled to the distal needle interface of the syringe body. The needle assembly includes a needle having a needle proximal end feature, a hub, and a needle latching member configured to couple the needle to the hub. The needle is retractable into plunger interior upon manipulation of the plunger member to actuate the energy-storage member latching member.
    Type: Application
    Filed: July 20, 2023
    Publication date: February 15, 2024
    Applicant: Credence MedSystems, Inc.
    Inventors: Alan E. Shluzas, Stephen H. Diaz, John F. Shanley, Jeff Tillack, Dan Thayer, Gary Steese-Bradley, Mina M. Leung
  • Publication number: 20240024584
    Abstract: An injection system includes a syringe body defining a proximal opening at a proximal end thereof and a distal needle interface at a distal end thereof. The system also includes proximal and distal stopper members disposed in the syringe body, forming respective proximal and distal drug chambers. The system further includes a plunger member configured to be manually manipulated to insert the proximal stopper member relative to the syringe body. Moreover, the system includes a fluid conveying assembly including a penetrating member configured to penetrate the distal stopper member to fluidly couple the proximal and distal drug chambers, a distal exit tube, and a transfer member disposed at least partially around a portion of the penetrating member and defining a fluid passage. A distal end of the penetrating member is disposed in the distal exit tube.
    Type: Application
    Filed: July 27, 2023
    Publication date: January 25, 2024
    Applicant: CREDENCE MEDSYSTEMS, INC.
    Inventors: Stephen H. Diaz, Gary Steese-Bradley, Alan E. Shluzas, Conor Edward Shanley, Mina M. Leung, Jeff Tillack
  • Patent number: 11844937
    Abstract: An injection system includes a body member having a body connection member at a distal end thereof. The system also includes a needle hub assembly coupled to the distal end of the injection system body. The needle hub assembly includes a needle hub coupled to the body connection member, a needle coupled to the needle hub, and a spacer removably coupled to the needle hub. The spacer reduces an exposed length of the needle.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: December 19, 2023
    Assignee: Credence MedSystems, Inc.
    Inventors: Mina M. Leung, Jeff Tillack, Stephen H. Diaz
  • Publication number: 20230330352
    Abstract: A system for injection includes a syringe body having proximal and distal ends and defining a syringe interior. The system also includes a stopper member disposed in the syringe interior. The system further includes a plunger member coupled to the stopper member and configured to be manipulated to insert the stopper member distally in the syringe interior relative to the syringe body. Moreover, the system includes a needle hub assembly coupled to the syringe body at the distal end thereof and including a needle hub, and a needle coupled to the needle hub. In addition, the system includes a needle shield removably coupled to the needle hub over the needle. The system also includes a telescoping sleeve coupled to the distal end of the syringe body at least partially over the needle shield.
    Type: Application
    Filed: April 13, 2023
    Publication date: October 19, 2023
    Applicant: CREDENCE MEDSYSTEMS, INC.
    Inventors: Mina M. Leung, Stephen H. Diaz, Jeff Tillack
  • Patent number: 11759577
    Abstract: A system for injecting includes a syringe body having proximal and distal ends, a syringe interior, and a syringe flange at the proximal end thereof. The system also includes an injectable fluid disposed in the syringe interior. The system further includes a finger flange coupled to the syringe flange. Moreover, the system includes a stopper member disposed in the syringe interior. In addition, the system includes a plunger ratchet member coupled to the stopper member. The system also includes a plunger tube disposed coaxially around at least a portion of the plunger ratchet member and operatively coupled thereto.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: September 19, 2023
    Assignee: CREDENCE MEDSYSTEMS, INC.
    Inventors: Conor Edward Shanley, Alan E. Shluzas, Mina M. Leung, Stephen H. Diaz
  • Patent number: 11712525
    Abstract: An injection system includes a syringe body defining a proximal opening at a proximal end thereof and a distal needle interface at a distal end thereof. The system also includes proximal and distal stopper members disposed in the syringe body, forming respective proximal and distal drug chambers. The system further includes a plunger member configured to be manually manipulated to insert the proximal stopper member relative to the syringe body. Moreover, the system includes a fluid conveying assembly including a penetrating member configured to penetrate the distal stopper member to fluidly couple the proximal and distal drug chambers, a distal exit tube, and a transfer member disposed at least partially around a portion of the penetrating member and defining a fluid passage. A distal end of the penetrating member is disposed in the distal exit tube.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: August 1, 2023
    Assignee: Credence Medsystems, Inc.
    Inventors: Stephen H. Diaz, Gary Steese-Bradley, Alan E. Shluzas, Conor Edward Shanley, Mina M. Leung, Jeff Tillack
  • Patent number: 11707578
    Abstract: A system for injecting includes a syringe body defining a proximal opening and a distal needle interface. The system also includes a plunger member defining a plunger interior and configured to be manually manipulated to insert a stopper member relative to the syringe body. The plunger member includes a needle retention feature disposed in the plunger interior, an energy-storage member disposed in the plunger interior, and an energy-storage member latching member disposed in the plunger interior. The system further includes a needle hub assembly coupled to the distal needle interface of the syringe body. The needle assembly includes a needle having a needle proximal end feature, a hub, and a needle latching member configured to couple the needle to the hub. The needle is retractable into plunger interior upon manipulation of the plunger member to actuate the energy-storage member latching member.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: July 25, 2023
    Assignee: Credence MedSystems, Inc.
    Inventors: Alan E. Shluzas, Stephen H. Diaz, John F. Shanley, Jeff Tillack, Dan Thayer, Gary Steese-Bradley, Mina M. Leung
  • Publication number: 20230147715
    Abstract: A method for preparing a pre-filled multi-chamber injection system includes providing an injection system body, the injection system body defining an open proximal end, a body interior, and an open distal end. The method also includes introducing a first substance into a distal end of the body interior. The method further includes disposing a distal stopper member in the body interior, the distal stopper member and the injection system body defining proximal and distal chambers in the body interior. Moreover, the method includes introducing a second substance into the body interior. In addition, the method includes disposing a proximal stopper member in the body interior. The method also includes inserting an elongate member at least partially into the body interior, the elongate member having a plurality of flow channels for fluidly coupling the proximal and distal chambers. The method further includes coupling a plunger member to the proximal stopper member.
    Type: Application
    Filed: December 30, 2022
    Publication date: May 11, 2023
    Applicant: CREDENCE MEDSYSTEMS, INC.
    Inventors: Jeff Tillack, Alan E. Shluzas, Stephen H. Diaz, Gary Steese-Bradley, John Merhige, Conor Edward Shanley, Mina M. Leung
  • Publication number: 20230061799
    Abstract: A system for injection includes a syringe body having proximal and distal ends, a syringe interior, and a syringe flange at the proximal end thereof. The system also includes a stopper member disposed in the syringe interior. The system further includes a plunger member coupled to the stopper member and configured to be manipulated to insert the stopper member distally in the syringe interior relative to the syringe body. Moreover, the system includes a needle coupled to the syringe body at the distal end thereof. In addition, the system includes a smart flange removably coupled to the syringe body. The smart flange includes a mounting sensor to measure mounting data. The smart flange also includes a processor to analyze the mounting data to determine the presence and the type of the syringe body disposed in the smart flange.
    Type: Application
    Filed: August 25, 2022
    Publication date: March 2, 2023
    Applicant: CREDENCE MEDSYSTEMS, INC.
    Inventors: Alan E. Shluzas, Mina M. Leung, Jeff Tillack, Stephen H. Diaz
  • Patent number: 11541179
    Abstract: A method for preparing a pre-filled multi-chamber injection system includes providing an injection system body, the injection system body defining an open proximal end, a body interior, and an open distal end. The method also includes introducing a first substance into a distal end of the body interior. The method further includes disposing a distal stopper member in the body interior, the distal stopper member and the injection system body defining proximal and distal chambers in the body interior. Moreover, the method includes introducing a second substance into the body interior. In addition, the method includes disposing a proximal stopper member in the body interior. The method also includes inserting an elongate member at least partially into the body interior, the elongate member having a plurality of flow channels for fluidly coupling the proximal and distal chambers. The method further includes coupling a plunger member to the proximal stopper member.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: January 3, 2023
    Assignee: CREDENCE MEDSYSTEMS, INC.
    Inventors: Jeff Tillack, Alan E. Shluzas, Stephen H. Diaz, Gary Steese-Bradley, John Merhige, Conor Edward Shanley, Mina M. Leung
  • Publication number: 20220134021
    Abstract: A system for injecting includes a syringe body having proximal and distal ends, a syringe interior, and a syringe flange at the proximal end thereof. The system also includes an injectable fluid disposed in the syringe interior. The system further includes a finger flange coupled to the syringe flange. Moreover, the system includes a stopper member disposed in the syringe interior. In addition, the system includes a plunger ratchet member coupled to the stopper member. The system also includes a plunger tube disposed coaxially around at least a portion of the plunger ratchet member and operatively coupled thereto.
    Type: Application
    Filed: January 12, 2022
    Publication date: May 5, 2022
    Applicant: CREDENCE MEDSYSTEMS, INC.
    Inventors: Conor Edward Shanley, Alan E. Shluzas, Mina M. Leung, Stephen H. Diaz
  • Publication number: 20210402094
    Abstract: A system for serially injecting liquids includes a syringe body defining a syringe proximal opening and a distal needle interface, proximal and distal stopper members, forming proximal and distal chambers. The system also includes a first liquid in the distal chamber and a second liquid in the proximal chamber, and a plunger configured to be manually manipulated to insert the proximal stopper member distally. Moreover, the system includes a needle hub assembly coupled to the syringe body, the needle assembly including a needle. The needle defines a needle interior, and distal, middle and proximal openings. The distal, middle and proximal openings are fluidly coupled through the needle interior. Manipulating the plunger member to insert the proximal stopper member initially expels the first liquid from the distal chamber, then serially expels the second liquid from the proximal chamber.
    Type: Application
    Filed: June 30, 2021
    Publication date: December 30, 2021
    Applicant: CREDENCE MEDSYSTEMS, INC.
    Inventors: Stephen H. Diaz, Conor Edward Shanley, Mina M. Leung, Alan E. Shluzas, Jeff Tillack
  • Publication number: 20210260305
    Abstract: A system for injecting includes a syringe body defining a proximal opening and a distal needle interface. The system also includes a plunger member defining a plunger interior and configured to be manually manipulated to insert a stopper member relative to the syringe body. The plunger member includes a needle retention feature disposed in the plunger interior, an energy-storage member disposed in the plunger interior, and an energy-storage member latching member disposed in the plunger interior. The system further includes a needle hub assembly coupled to the distal needle interface of the syringe body. The needle assembly includes a needle having a needle proximal end feature, a hub, and a needle latching member configured to couple the needle to the hub. The needle is retractable into plunger interior upon manipulation of the plunger member to actuate the energy-storage member latching member.
    Type: Application
    Filed: February 17, 2021
    Publication date: August 26, 2021
    Applicant: Credence MedSystems, Inc.
    Inventors: Alan E. Shluzas, Stephen H. Diaz, John F. Shanley, Jeff Tillack, Dan Thayer, Gary Steese-Bradley, Mina M. Leung
  • Publication number: 20210236741
    Abstract: A system for injecting includes a cartridge body defining a proximal opening and a distal needle interface. The system also includes a plunger member defining a plunger interior and configured to be manually manipulated to insert a stopper member relative to the cartridge body. The plunger member includes a needle retention feature disposed in the plunger interior, an energy-storage member disposed in the plunger interior, and an energy-storage member latching member disposed in the plunger interior. The system further includes a needle hub assembly coupled to the distal needle interface of the cartridge body. The needle assembly includes a needle having a needle proximal end feature, a hub, and a needle latching member configured to couple the needle to the hub. The needle is retractable into plunger interior upon manipulation of the plunger member to actuate the energy-storage member latching member.
    Type: Application
    Filed: February 8, 2021
    Publication date: August 5, 2021
    Applicant: CREDENCE MEDSYSTEMS, INC.
    Inventors: Alan E. Shluzas, Mina M. Leung, Stephen H. Diaz, Jeff Tillack
  • Patent number: 10926038
    Abstract: A system for injecting includes a syringe body defining a proximal opening and a distal needle interface. The system also includes a plunger member defining a plunger interior and configured to be manually manipulated to insert a stopper member relative to the syringe body. The plunger member includes a needle retention feature disposed in the plunger interior, an energy-storage member disposed in the plunger interior, and an energy-storage member latching member disposed in the plunger interior. The system further includes a needle hub assembly coupled to the distal needle interface of the syringe body. The needle assembly includes a needle having a needle proximal end feature, a hub, and a needle latching member configured to couple the needle to the hub. The needle is retractable into plunger interior upon manipulation of the plunger member to actuate the energy-storage member latching member.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: February 23, 2021
    Assignee: Credence MedSystems, Inc.
    Inventors: Alan E. Shluzas, Stephen H. Diaz, John F. Shanley, Jeff Tillack, Dan Thayer, Gary Steese-Bradley, Mina M. Leung
  • Patent number: 10912894
    Abstract: A system for injecting includes a cartridge body defining a proximal opening and a distal needle interface. The system also includes a plunger member defining a plunger interior and configured to be manually manipulated to insert a stopper member relative to the cartridge body. The plunger member includes a needle retention feature disposed in the plunger interior, an energy-storage member disposed in the plunger interior, and an energy-storage member latching member disposed in the plunger interior. The system further includes a needle hub assembly coupled to the distal needle interface of the cartridge body. The needle assembly includes a needle having a needle proximal end feature, a hub, and a needle latching member configured to couple the needle to the hub. The needle is retractable into plunger interior upon manipulation of the plunger member to actuate the energy-storage member latching member.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: February 9, 2021
    Assignee: CREDENCE MEDSYSTEMS, INC.
    Inventors: Alan E. Shluzas, Mina M. Leung, Stephen H. Diaz, Jeff Tillack
  • Publication number: 20200398000
    Abstract: An injection system includes a syringe body defining a proximal opening at a proximal end thereof and a distal needle interface at a distal end thereof. The system also includes proximal and distal stopper members disposed in the syringe body, forming respective proximal and distal drug chambers. The system further includes a plunger member configured to be manually manipulated to insert the proximal stopper member relative to the syringe body. Moreover, the system includes a fluid conveying assembly including a penetrating member configured to penetrate the distal stopper member to fluidly couple the proximal and distal drug chambers, a distal exit tube, and a transfer member disposed at least partially around a portion of the penetrating member and defining a fluid passage. A distal end of the penetrating member is disposed in the distal exit tube.
    Type: Application
    Filed: June 22, 2020
    Publication date: December 24, 2020
    Inventors: Stephen H. Diaz, Gary Steese-Bradley, Alan E. Shluzas, Conor Edward Shanley, Mina M. Leung, Jeff Tillack
  • Publication number: 20200306462
    Abstract: An injection system includes a molded body member having a body connection member at a distal end thereof. The system also includes a needle hub assembly coupled to the distal end of the injection system body. The needle hub assembly includes a needle hub coupled to the body connection member, a needle coupled to the needle hub, and a barbed band disposed around a proximal end of the needle hub and having a barb. The barbed band allows rotation of the needle hub assembly relative to the body connection member in a first direction, while preventing rotation of the needle hub assembly relative to the body connection member in a second direction.
    Type: Application
    Filed: April 1, 2020
    Publication date: October 1, 2020
    Inventors: Mina M. Leung, Jeff Tillack, Stephen H. Diaz, Alan E. Shluzas
  • Publication number: 20200297942
    Abstract: An injection system includes a body member having a body connection member at a distal end thereof. The system also includes a needle hub assembly coupled to the distal end of the injection system body. The needle hub assembly includes a needle hub coupled to the body connection member, a needle coupled to the needle hub, and a spacer removably coupled to the needle hub. The spacer reduces an exposed length of the needle.
    Type: Application
    Filed: March 19, 2020
    Publication date: September 24, 2020
    Inventors: Mina M. Leung, Jeff Tillack, Stephen H. Diaz