Patents by Inventor Michael Dennis O'Hara

Michael Dennis O'Hara 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).

  • Low attenuating radioactive seeds
    Patent number: 6800055
    Abstract: A low attenuation radioactive seed utilizing a core having a fluted or non-circular cross section is utilized for increasing the dose rate, decreasing the dwell times and improving the clinical outcomes by increasing the dose consistency throughout the treatment zone. The fluted or non-circular cross section core would increase the surface area for the deposition of the radioactive substance thereby increasing the therapeutic efficacy of the seed. In addition, the fluted or non-circular cross section may be designed in a manner to reduce photon emission attenuation by reducing the distance an inwardly directed photon would have to travel to traverse the core.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: October 5, 2004
    Assignee: Cordis Corporation
    Inventors: Howard Ira Amols, Timothy Charles Kiorpes, Benjamin David McDaniel, Michael Dennis O'Hara
  • Method and assembly for containing radioactive materials
    Patent number: 6669621
    Abstract: A radioactive substance absorber is incorporated into an intravascular radiotherapy source ribbon assembly to prevent the migration of radioactive matter throughout the assembly container. The radioactive substance absorber comprises carbon in various forms and configurations. The radioactive substance absorber is positioned in proximity to the source core and absorbs radioactive materials which break free from the source core, thereby containing the radioactive material.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: December 30, 2003
    Assignee: Cordis Corporation
    Inventors: Michael Dennis O'Hara, Benjamin David McDaniel
  • METHOD AND ASSEMBLY FOR CONTAINING RADIOACTIVE MATERIALS
    Publication number: 20030220534
    Abstract: A radioactive substance absorber is incorporated into an intravascular radiotherapy source ribbon assembly to prevent the migration of radioactive matter throughout the assembly container. The radioactive substance absorber comprises carbon in various forms and configurations. The radioactive substance absorber is positioned in proximity to the source core and absorbs radioactive materials which break free from the source core, thereby containing the radioactive material.
    Type: Application
    Filed: March 14, 2001
    Publication date: November 27, 2003
    Inventors: Michael Dennis O'Hara, Benjamin David McDaniel
  • Low attenuating radioactive seeds
    Publication number: 20020123660
    Abstract: A low attenuation radioactive seed utilizing a core having a fluted or non-circular cross section is utilized for increasing the dose rate, decreasing the dwell times and improving the clinical outcomes by increasing the dose consistency throughout the treatment zone. The fluted or non-circular cross section core would increase the surface area for the deposition of the radioactive substance thereby increasing the therapeutic efficacy of the seed. In addition, the fluted or non-circular cross section may be designed in a manner to reduce photon emission attenuation by reducing the distance an inwardly directed photon would have to travel to traverse the core.
    Type: Application
    Filed: February 21, 2001
    Publication date: September 5, 2002
    Inventors: Howard Ira Amols`, Timothy Charles Kiorpes, Benjamin David McDaniel, Michael Dennis O'Hara