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US 5,674,242 AGranted
Endoprosthetic device with therapeutic compound
AssigneeQuanam Medical Corporation
InventorsLoc Phan, Simon Stertzer, Michael Froix
Life of this patent
Estimating the term…
Abstract
An endoprosthetic device for insertion at a vascular site is described. The device is composed of a structural member carrying a polymer member having an embedded therapeutic compound. The polymer member is formed of a shape-memory polymer for expansion upon exposed to a selected stimulus. The structural member is designed for coexpansion with the polymer member when the device is exposed to the stimulus.
Claims17
A drug-delivery endoprosthetic device for insertion at a vascular site via catheter placement at the site, comprising:
- a shape-memory polymer member capable of expanding from a contracted substantially cylindrical state to a stable, radially expanded state when the polymer member is exposed to a selected stimulus, said member having a drug embedded therein for release from the member, with such in its expanded state,
- a structural member on which the polymer member is carried, for coexpansion with the polymer member from a substantially cylindrical state to a radially expanded, cylindrical state when the device is exposed to said stimulus,
- where the device can be delivered from a catheter, with the structural and polymer members in their contracted states, and is adapted to be held in a vessel at the vascular target site by radial pressure against the wall of the vessel, with the structural and polymer members in their expanded states.
Dependencies are inferred from the claim text.