Patents by Inventor Derek S. Merrikin

Derek S. Merrikin 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).

  • Training prosthetic for self-cannulation training
    Patent number: 11605311
    Abstract: A self-cannulation training system is provided that includes a cannulation pad, a simulated access, a simulated cannula, a control unit, and first and second indicators. The cannulation pad includes conductors for a cannulation electrical circuit and an infiltration electrical circuit. An insulating layer electrically insulates the conductors from one another. The simulated access connects to the cannulation electrical circuit and includes an electrically conductive material retained inside an outer sheath. The simulated cannula has an electrical conductor and connects to the control unit. The control unit has a power source that connects to both the cannulation electrical circuit and to the infiltration electrical circuit. The first indicator is activated when the cannula needle electrically completes the cannulation electrical circuit. The second indicator is activated when the cannula needle infiltrates and completes the infiltration electrical circuit.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: March 14, 2023
    Assignee: FRESENIUS MEDICAL CARE HOLDINGS, INC.
    Inventors: Samuel Trevino, Daniel L. Sloat, Mary Vasseur Finn, Derek S. Merrikin
  • Training Prosthetic for Self-Cannulation Training
    Publication number: 20220130279
    Abstract: A self-cannulation training system is provided that includes a cannulation pad, a simulated access, a simulated cannula, a control unit, and first and second indicators. The cannulation pad includes conductors for a cannulation electrical circuit and an infiltration electrical circuit. An insulating layer electrically insulates the conductors from one another. The simulated access connects to the cannulation electrical circuit and includes an electrically conductive material retained inside an outer sheath. The simulated cannula has an electrical conductor and connects to the control unit. The control unit has a power source that connects to both the cannulation electrical circuit and to the infiltration electrical circuit. The first indicator is activated when the cannula needle electrically completes the cannulation electrical circuit. The second indicator is activated when the cannula needle infiltrates and completes the infiltration electrical circuit.
    Type: Application
    Filed: October 28, 2020
    Publication date: April 28, 2022
    Applicant: Fresenius Medical Care Holdings, Inc.
    Inventors: Samuel Trevino, Daniel L. Sloat, Mary Vasseur Finn, Derek S. Merrikin