Patent ID: 8579956
Filing Date: 2013-11-12
Classification: A61F,A61M

Abstract:
1. An apparatus comprising: an expandable body suitable for insertion into a blood vessel and capable of expanding from a first diameter to a second diameter in response to an inflation pressure, the expandable body comprising: a delivery cannula coupled to the expandable body, the delivery cannula in fluid communication with each aperture such that a fluid introduced through the delivery cannula to expand the expandable body from the first diameter to the second diameter is delivered through the needles; and a stent having struts and openings between the struts, the stent overlying the outer wall such that the needles align with the openings and the recesses align with the struts, wherein the first diameter comprises a collapsed configuration and the second diameter comprises an expanded configuration, wherein the expanded configuration advances the needles through the openings to place the needles in contact with portions of a lesion exposed through the openings and releases the treatment agent into the blood vessel.