Patents by Inventor Shelby M. Baylis

Shelby M. Baylis 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: 4177797
    Abstract: An improved rotary biopsy device for extracting biopsy samples and the like from specific specimen extracting locations. The device includes an elongated inner needle member used for initial penetration of the body tissue, with an outer hollow cylindrical cutting tube thereafter being slidably received over the needle member. In use, the needle member is first penetrated, by rotating same, into the desired specimen extracting location. The outer tube is then slidably disposed thereover and pushed downwardly until it also penetrates the body tissue, and both the tube and needle are simultaneously withdrawn with the sample collected interiorly of the tube.
    Type: Grant
    Filed: March 4, 1977
    Date of Patent: December 11, 1979
    Assignee: Shelby M. Baylis
    Inventors: Shelby M. Baylis, Jorge S. Szauer
  • Patent number: 4099518
    Abstract: An improved biopsy apparatus is disclosed. The apparatus comprises a hollow outer cannula within which is initially disposed a solid inner puncture trocar. In use, a biopsy sample is obtained from a patient by first inserting the outer cannula - trocar apparatus into the patient to a desired location. Thereafter, the solid inner initial puncture trocar is withdrawn from the outer cannula, while the other cannula remains in place at the desired specimen location. A hollow inner cannula is then inserted into the outer cannula, and upon withdrawal of the inner cannula from the outer cannula the desired specimen is obtained within the hollow interior of the inner cannula.
    Type: Grant
    Filed: May 10, 1976
    Date of Patent: July 11, 1978
    Inventors: Shelby M. Baylis, Jorge S. Szauer