Patents by Inventor Joseph F. Fitzgerald

Joseph F. Fitzgerald 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).

  • Valve, catheter and method for preventing the introduction of air into the body of a patient
    Patent number: 4784644
    Abstract: A method for preventing the introduction of air into the vascular system of a patient during intravenous or intra-arterial procedures, as well as for preventing the reflux of fluids into the body of a patient. Also, novel fluid directing means and catheters which include integral or attached fluid flow control means for use in this method.
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: November 15, 1988
    Assignee: Interface Biomedical Laboratories Corp.
    Inventors: Philip N. Sawyer, Joseph F. Fitzgerald, Lester F. Miller
  • Methods for preventing the introduction of air or fluid into the body of a patient
    Patent number: 4722725
    Abstract: Methods for preventing the introduction of air into the vascular system of a patient during intravenous or intraarterial procedures, as well as for preventing the reflex of fluids into the body of a patient. Also, novel fluid directing means and catheters which include integal or attached fluid flow control means for use in these methods.
    Type: Grant
    Filed: May 11, 1987
    Date of Patent: February 2, 1988
    Assignee: Interface Biomedical Laboratories, Inc.
    Inventors: Philip N. Sawyer, Joseph F. Fitzgerald
  • Safety arrangement for preventing air embolism during intravenous procedures
    Patent number: 4684364
    Abstract: An intravenous system is provided which includes a source of intravenous fluid, a needle or catheter for insertion into the vascular system of a patient, a pump for pumping the intravenous fluid via the needle or catheter into the patient and catheters coupling the pump to the source and to the needle. The pump includes an arrangement to terminate pumping upon an opening upon one of the catheters to ambient atmosphere. A flow control is provided in at least one of the catheters to prevent movement of air through the corresponding catheters into the patient.
    Type: Grant
    Filed: April 12, 1983
    Date of Patent: August 4, 1987
    Assignee: Interface Biomedical Laboratories Corporation
    Inventors: Philip N. Sawyer, Joseph F. Fitzgerald