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).
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Publication number: 20250050027Abstract: 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: ApplicationFiled: August 15, 2024Publication date: February 13, 2025Applicant: CREDENCE MEDSYSTEMS, INC.Inventors: Jeff Tillack, Alan E. Shluzas, Stephen H. Diaz, Gary Steese-Bradley, John Merhige, Conor Edward Shanley, Mina M. Leung
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Publication number: 20250001095Abstract: 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: ApplicationFiled: May 30, 2024Publication date: January 2, 2025Applicant: CREDENCE MEDSYSTEMS, INC.Inventors: Alan E. Shluzas, Mina M. Leung, Stephen H. Diaz, Jeff Tillack
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Publication number: 20240382695Abstract: 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: ApplicationFiled: May 2, 2024Publication date: November 21, 2024Applicant: CREDENCE MEDSYSTEMS, INC.Inventors: Mina M. Leung, Jeff Tillack, Stephen H. Diaz, Alan E. Shluzas
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Publication number: 20240285871Abstract: A safe injection system includes an injection system body defining a proximal opening at a proximal end thereof, an injection system body interior, and a needle attachment interface at a distal end thereof. The system also includes a stopper member disposed in the injection system body interior. The system further a plunger member configured to be manipulated to insert the stopper member relative to the injection system body. Moreover, the system includes a needle hub assembly coupled to the needle attachment interface. The needle hub assembly includes a needle hub defining a latch space in a distal end thereof, a needle latch defined by the needle hub in the latch space, and a needle removably coupled to the needle hub by the needle latch.Type: ApplicationFiled: February 27, 2024Publication date: August 29, 2024Applicant: CREDENCE MEDSYSTEMS, INC.Inventors: Alan E. Shluzas, John Robert Lund, Mina M. Leung, Jeff Tillack
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Patent number: 12064603Abstract: 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: GrantFiled: December 30, 2022Date of Patent: August 20, 2024Assignee: Credence MedSystems, Inc.Inventors: Jeff Tillack, Alan E. Shluzas, Stephen H. Diaz, Gary Steese-Bradley, John Merhige, Conor Edward Shanley, Mina M. Leung
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Patent number: 11998726Abstract: 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: GrantFiled: February 8, 2021Date of Patent: June 4, 2024Assignee: Credence MedSystems, Inc.Inventors: Alan E. Shluzas, Mina M. Leung, Stephen H. Diaz, Jeff Tillack
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Patent number: 11975181Abstract: 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: GrantFiled: April 1, 2020Date of Patent: May 7, 2024Assignee: Credence MedSystems, Inc.Inventors: Mina M. Leung, Jeff Tillack, Stephen H. Diaz, Alan E. Shluzas
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Publication number: 20240050662Abstract: 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: ApplicationFiled: July 20, 2023Publication date: February 15, 2024Applicant: Credence MedSystems, Inc.Inventors: Alan E. Shluzas, Stephen H. Diaz, John F. Shanley, Jeff Tillack, Dan Thayer, Gary Steese-Bradley, Mina M. Leung
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Publication number: 20240024584Abstract: 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: ApplicationFiled: July 27, 2023Publication date: January 25, 2024Applicant: CREDENCE MEDSYSTEMS, INC.Inventors: Stephen H. Diaz, Gary Steese-Bradley, Alan E. Shluzas, Conor Edward Shanley, Mina M. Leung, Jeff Tillack
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Patent number: 11844937Abstract: 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: GrantFiled: March 19, 2020Date of Patent: December 19, 2023Assignee: Credence MedSystems, Inc.Inventors: Mina M. Leung, Jeff Tillack, Stephen H. Diaz
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Publication number: 20230330352Abstract: 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: ApplicationFiled: April 13, 2023Publication date: October 19, 2023Applicant: CREDENCE MEDSYSTEMS, INC.Inventors: Mina M. Leung, Stephen H. Diaz, Jeff Tillack
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Patent number: 11759577Abstract: 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: GrantFiled: November 13, 2019Date of Patent: September 19, 2023Assignee: CREDENCE MEDSYSTEMS, INC.Inventors: Conor Edward Shanley, Alan E. Shluzas, Mina M. Leung, Stephen H. Diaz
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Patent number: 11712525Abstract: 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: GrantFiled: June 22, 2020Date of Patent: August 1, 2023Assignee: Credence Medsystems, Inc.Inventors: Stephen H. Diaz, Gary Steese-Bradley, Alan E. Shluzas, Conor Edward Shanley, Mina M. Leung, Jeff Tillack
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Patent number: 11707578Abstract: 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: GrantFiled: February 17, 2021Date of Patent: July 25, 2023Assignee: Credence MedSystems, Inc.Inventors: Alan E. Shluzas, Stephen H. Diaz, John F. Shanley, Jeff Tillack, Dan Thayer, Gary Steese-Bradley, Mina M. Leung
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Publication number: 20230147715Abstract: 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: ApplicationFiled: December 30, 2022Publication date: May 11, 2023Applicant: CREDENCE MEDSYSTEMS, INC.Inventors: Jeff Tillack, Alan E. Shluzas, Stephen H. Diaz, Gary Steese-Bradley, John Merhige, Conor Edward Shanley, Mina M. Leung
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Publication number: 20230061799Abstract: 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: ApplicationFiled: August 25, 2022Publication date: March 2, 2023Applicant: CREDENCE MEDSYSTEMS, INC.Inventors: Alan E. Shluzas, Mina M. Leung, Jeff Tillack, Stephen H. Diaz
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Patent number: 11541179Abstract: 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: GrantFiled: February 21, 2020Date of Patent: January 3, 2023Assignee: CREDENCE MEDSYSTEMS, INC.Inventors: Jeff Tillack, Alan E. Shluzas, Stephen H. Diaz, Gary Steese-Bradley, John Merhige, Conor Edward Shanley, Mina M. Leung
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Publication number: 20220134021Abstract: 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: ApplicationFiled: January 12, 2022Publication date: May 5, 2022Applicant: CREDENCE MEDSYSTEMS, INC.Inventors: Conor Edward Shanley, Alan E. Shluzas, Mina M. Leung, Stephen H. Diaz
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Publication number: 20210402094Abstract: 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: ApplicationFiled: June 30, 2021Publication date: December 30, 2021Applicant: CREDENCE MEDSYSTEMS, INC.Inventors: Stephen H. Diaz, Conor Edward Shanley, Mina M. Leung, Alan E. Shluzas, Jeff Tillack
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Publication number: 20210260305Abstract: 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: ApplicationFiled: February 17, 2021Publication date: August 26, 2021Applicant: Credence MedSystems, Inc.Inventors: Alan E. Shluzas, Stephen H. Diaz, John F. Shanley, Jeff Tillack, Dan Thayer, Gary Steese-Bradley, Mina M. Leung