×

Stent for angioplasty and a production process therefor

  • US 6,645,243 B2
  • Filed: 01/08/1998
  • Issued: 11/11/2003
  • Est. Priority Date: 01/09/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for inhibiting restenosis in a lumen of a vessel comprising:

  • providing a stent formed from a first material, the stent having a body in the form of a substantially tubular casing capable of being dilated in use from a radially-contracted position to a radially-expanded position;

    coating the stent with a second material capable of being made radioactive;

    exposing the coated stent to a neutron flux so that the second material becomes radioactive;

    determining an optimal radiation level for inhibiting restenosis in the lumen of the vessel;

    implanting the exposed coated stent in the lumen of the vessel at a predetermined time after the exposing step, the predetermined time being selected such that the level of radioactivity of the second material has decayed to the optimal radiation level.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×