Patents by Inventor Stanley Daniel Pleskach

Stanley Daniel Pleskach 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).

  • Labelled phospholipid spheres for organ visualization
    Patent number: 4086330
    Abstract: A carrier is disclosed for diagnostic scanning agents labelled with short-lived radioisotopes for medical organ studies which comprises colloidally dispersed phospholipid material, and also disclosed are new diagnostic scanning agents utilizing the carrier and a radioisotope, preferably .sup.99m Tc, which is in a form which complexes with the carrier. The radioisotope labelling can be carried out directly before use, the carrier in dispersed form being stable for a considerable period of time. Methods of preparation of the scanning agents are also disclosed which provide a material which localizes mainly in the liver after injection, or alternately at least initially in the lungs when an aggregating agent is used during preparation in a specific sequence of steps. Specific organ scans or sequential scanning is thus possible.
    Type: Grant
    Filed: May 12, 1976
    Date of Patent: April 25, 1978
    Assignee: The Atomic Energy of Canada Limited
    Inventors: Abram Petkau, Stanley Daniel Pleskach
  • Labelled phospholipid material colloidially dispersed and sized to localize at preselected organs
    Patent number: 3992513
    Abstract: A carrier is disclosed for diagnostic scanning agents labelled with short-lived radioisotopes for medical organ studies which comprises colloidally dispersed phospholipid material, and also disclosed are new diagnostic scanning agents utilizing the carrier and a radioisotope, preferably .sup.99m Tc, which is in a form which complexes with the carrier. The radioisotope labelling can be carried out directly before use, the carrier in dispersed form being stable for a considerable period of time. Methods of preparation of the scanning agents are also disclosed which provide a material which localizes mainly in the liver after injection, or alternately at least initially in the lungs when an aggregating agent is used during preparation in a specific sequence of steps. Specific organ scans or sequential scanning is thus possible.
    Type: Grant
    Filed: January 7, 1975
    Date of Patent: November 16, 1976
    Assignee: Atomic Energy of Canada Limited
    Inventors: Abram Petkau, Stanley Daniel Pleskach