Patents by Inventor Jerry W. Froelich

Jerry W. Froelich 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).

  • Apparatus for radiolabeling red blood cells
    Patent number: 4471765
    Abstract: A method and apparatus for radiolabeling red blood cells is provided which includes a syringe holder, a vial containing heparin, a vial containing technetium-99m and a catheter. The vials and catheter are connected to channels within the syringe holder and a valve positioned at the intersection of the channels is capable of effecting selective communication between the catheter and either vial or none of the vials. The catheter is filled with heparin and a blood sample is drawn from the patient through the catheter and into the vial containing the technetium-99m. The catheter then is filled with heparin and the blood sample is incubated. The labeled red blood cells then are injected into the patient through the catheter.
    Type: Grant
    Filed: June 25, 1982
    Date of Patent: September 18, 1984
    Assignee: The Massachusetts General Hospital
    Inventors: Harry W. Strauss, Ronald J. Callahan, Jerry W. Froelich
  • Method and apparatus for radiolabeling red blood cells
    Patent number: 4372294
    Abstract: A method and apparatus for radiolabeling red blood cells is provided which includes a syringe holder, a vial containing heparin, a vial containing technetium-99m and a catheter. The vials and catheter are connected to channels within the syringe holder and a valve positioned at the intersection of the channels is capable of effecting selective communication between the catheter and either vial or none of the vials. The catheter is filled with heparin and a blood sample is drawn from the patient through the catheter and into the vial containing the technetium-99m. The catheter then is filled with heparin and the blood sample is incubated. The labeled red blood cells then are injected into the patient through the catheter.
    Type: Grant
    Filed: September 25, 1980
    Date of Patent: February 8, 1983
    Assignee: The Massachusetts General Hospital
    Inventors: Harry W. Strauss, Ronald J. Callahan, Jerry W. Froelich