Intra-arterial stent with the capability to inhibit intimal hyperplasia Patent #: 5059166
ApplicationNo. 779641 filed on 10/21/1991
US Classes:600/3, Radioactive substance placed within body (e.g., inhaled, implanted, injected, etc.)424/1.11, RADIONUCLIDE OR INTENDED RADIONUCLIDE CONTAINING; ADJUVANT OR CARRIER COMPOSITIONS; INTERMEDIATE OR PREPARATORY COMPOSITIONS600/12Magnetic element placed within body (e.g., injected, inserted, implanted, etc.)
ExaminersPrimary: Cohen, Lee S.
Assistant: Lacyk, John P.
International ClassA61N 005/00
AbstractIt is well known that radiation therapy can reduce the proliferation of rapidly growing cancer cells is a malignant tumor. The present invention utilizes a radioisotope which is integral to a stent which can irradiate the tissue in close proximity to the implantation site of the stent in order to reduce the rapid growth of malignant cells in a vessel, such as a bile duct while simultaneously maintaining vessel patency. The radioisotope could be place inside the stent, alloyed into the metal from which the stent is made, or preferably, it can be coated onto the stent's exterior surface.
Field of SearchRADIOACTIVE SUBSTANCE APPLIED TO BODY FOR THERAPY
Radioactive substance placed within body (e.g., inhaled, implanted, injected, etc.)
Magnetic element placed within body (e.g., injected, inserted, implanted, etc.)
Means for inserting or removing conduit within body
Suture, ligature, elastic band or clip applier
Devices placed entirely within body and means used therewith (e.g., magnetic implant locator)