Patents by Inventor Alan E. Shluzas

Alan E. Shluzas 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: 20240139426
    Abstract: A system for measuring injection of a liquid medicine 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 sensor flange removably coupled to a syringe body. The sensor flange includes a sensor to measure an injection characteristic and a processor to analyze the injection characteristic to determine an occurrence of an injection event.
    Type: Application
    Filed: November 6, 2023
    Publication date: May 2, 2024
    Applicant: Credence Medsystems, Inc.
    Inventors: Stephen H. Diaz, Alan E. Shluzas, John F. Shanley, Jeff Tillack, John Merhige, Frank Litvack, Dan Thayer
  • Patent number: 11964141
    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 a stopper member disposed in the syringe interior. The system further includes a plunger member coupled to the stopper member. The plunger member includes a rotatable member configured to insert the stopper member distally in the syringe interior relative to the syringe body with rotation of the rotatable member. The plunger member further includes a proximal portion proximal of the rotatable member configured to be moved distally to also insert the stopper member distally in the syringe interior relative to the syringe body to eject about microliters of fluid from the syringe interior.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: April 23, 2024
    Assignee: Credence MedSystems, Inc.
    Inventors: Stephen H. Diaz, Alan E. Shluzas
  • Publication number: 20240115801
    Abstract: An injection system includes an injection system 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 injection system body, forming a proximal drug and a distal drug chamber. The system further includes a plunger member configured to insert the proximal stopper member relative to the injection system body. Moreover, the system includes a valve forming an openable barrier between the distal needle interface and the distal drug chamber. The valve includes an outer member including a distal diaphragm, and an inner member. The distal diaphragm is configured to elastically deform distally away from the inner member with increased pressure in the distal drug chamber to allow flow from the distal drug chamber to the distal needle interface.
    Type: Application
    Filed: October 6, 2023
    Publication date: April 11, 2024
    Inventors: Stephen H. Diaz, John Robert Lund, Gary Steese-Bradley, Alan E. Shluzas, Jeff Tillack
  • 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
  • Patent number: 11883635
    Abstract: A system for injecting includes a syringe body, a syringe interior, a syringe flange, and a stopper member and an injectable fluid disposed in the syringe interior. The system also includes a plunger member coupled to the stopper member. The system further includes a finger flange removably coupled to the syringe flange, the finger flange defining a pair of side openings and a pair of bumps adjacent respective side openings. Moreover, the system also includes a swing spacer rotatably coupled to the finger flange, the swing spacer defining a pair of arms, a pair of pivot pins, two pairs of slots, and a pair of indentations. The swing spacer is configured to define a distance of movement of the plunger member relative to the syringe body along a longitudinal axis of the syringe body, thereby defining a dose of the injectable fluid.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: January 30, 2024
    Assignee: Credence MedSystems
    Inventor: Alan E. Shluzas
  • Publication number: 20240024587
    Abstract: A system for mixing drug products and injecting includes a syringe body, proximal and distal stopper members disposed in the syringe body, a plunger member, and a needle hub assembly coupled to the distal needle interface of the syringe body. The proximal and distal stopper members form a proximal drug chamber between there between and a distal drug chamber between the distal stopper member and a distal end of the syringe body. The plunger member includes a needle retention feature, an energy-storage member, and an energy-storage member latching member all disposed in disposed in a plunger interior. First and second sizes of the respective proximal and distal drug chambers can be modified by movement of the proximal and distal stopper members relative to the syringe body. The needle is at least partially retractable into plunger interior upon manipulation of the plunger member relative to the syringe body.
    Type: Application
    Filed: August 10, 2023
    Publication date: January 25, 2024
    Applicant: CREDENCE MEDSYSTEMS, INC.
    Inventors: Gary Steese-Bradley, Stephen H. Diaz, Alan E. Shluzas, John F. Shanley, Jeff Tillack, Dan Thayer, John Merhige
  • 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
  • Publication number: 20240017012
    Abstract: A system for fluid delivery includes a syringe body having proximal and distal ends, a syringe interior, and a syringe flange at the proximal end thereof. 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 member coupled to the stopper member and having a ratchet portion. The system also includes a push member disposed coaxially around at least a portion of the plunger member and operatively coupled thereto, the push member having an outer telescoping member disposed at a proximal end thereof. The system further includes an inner telescoping member disposed slidably and at least partially in the outer telescoping member and operatively couple thereto. Moreover, the system includes a thumbpad disposed coupled to a proximal end of the inner telescoping member.
    Type: Application
    Filed: July 17, 2023
    Publication date: January 18, 2024
    Applicant: CREDENCE MEDSYSTEMS, INC.
    Inventors: Conor Edward Shanley, Jeff Tillack, Alan E. Shluzas
  • Patent number: 11849931
    Abstract: Systems, devices, and methods suitable for use with procedures performed at least partially percutaneously are provided. In some procedures, two or more access devices for providing access to adjacent surgical locations within a patient are used. Certain embodiments of the access device comprise an elongate body having a distal end with one or more cutouts. The cutouts on adjacent access devices are generally aligned with each other to permit passage of a portion of a fixation element from one access device to the other access device. A fastener with an elongated removable head may be delivered to the surgical site through the access device. After a distal end of the fastener is secured to the surgical site, a portion of the elongated housing is detached from the remainder of the fastener and removed from the patient.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: December 26, 2023
    Assignee: Zimmer Biomet Spine, Inc.
    Inventors: Gene P Dipoto, Stephen J Anderson, Alan E. Shluzas
  • Patent number: 11844931
    Abstract: A system for serially injecting liquids includes a syringe body, proximal and distal stopper members disposed in the syringe body, a first liquid in a distal chamber, a second liquid in a proximal chamber, a plunger member, and a needle hub assembly coupled to a distal needle interface of the syringe body. The plunger member includes a needle retention feature disposed in a plunger interior, an energy-storage member disposed in the plunger interior, and an energy-storage member latching member disposed in the plunger interior. 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. Manipulating the plunger member to insert the proximal stopper member distally relative to the syringe body initially expels the first liquid, then the second liquid. The needle is at least partially retractable into plunger interior.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: December 19, 2023
    Assignee: Credence MedSystems
    Inventors: Stephen H. Diaz, Jeff Tillack, Alan E. Shluzas, John F. Shanley, Dan Thayer, Gary Steese-Bradley, John Merhige
  • Patent number: 11806515
    Abstract: A system for measuring injection of a liquid medicine 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 sensor flange removably coupled to a syringe body. The sensor flange includes a sensor to measure an injection characteristic and a processor to analyze the injection characteristic to determine an occurrence of an injection event.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: November 7, 2023
    Assignee: Credence MedSystems, Inc.
    Inventors: Stephen H. Diaz, Alan E. Shluzas, John F. Shanley, Jeff Tillack, John Merhige, Frank Litvack, Dan Thayer
  • 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: 11724042
    Abstract: A system for mixing drug products and injecting includes a syringe body, proximal and distal stopper members disposed in the syringe body, a plunger member, and a needle hub assembly coupled to the distal needle interface of the syringe body. The proximal and distal stopper members form a proximal drug chamber between there between and a distal drug chamber between the distal stopper member and a distal end of the syringe body. The plunger member includes a needle retention feature, an energy-storage member, and an energy-storage member latching member all disposed in disposed in a plunger interior. First and second sizes of the respective proximal and distal drug chambers can be modified by movement of the proximal and distal stopper members relative to the syringe body. The needle is at least partially retractable into plunger interior upon manipulation of the plunger member relative to the syringe body.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: August 15, 2023
    Assignee: Credence Medsystems, Inc.
    Inventors: Gary Steese-Bradley, Stephen H. Diaz, Alan E. Shluzas, John F. Shanley, Jeff Tillack, Dan Thayer, John Merhige
  • Publication number: 20230248913
    Abstract: An injection system includes an injection system 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 injection system body, forming a proximal drug chamber between the proximal and distal stopper members and a distal drug chamber between the distal stopper member and the distal end of the injection system body. The system further includes a plunger member configured to be manually manipulated to insert the proximal stopper member relative to the injection system body. Moreover, the system includes a valve forming an openable barrier between the distal needle interface and at least a portion of the distal drug chamber. The valve is configured to allow flow from the portion of the distal drug chamber to the distal needle interface with increased pressure in the distal drug chamber.
    Type: Application
    Filed: January 18, 2023
    Publication date: August 10, 2023
    Applicant: CREDENCE MEDSYSTEMS, INC.
    Inventors: Stephen H. Diaz, Jeff Tillack, Alan E. Shluzas
  • 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