Patent ID: 9592040
Date: 2017-03-14
CPC Classifications: A61B,A61F

Claim:
1. A method for treating an aneurism, comprising: providing an elastically expandable balloon substrate having a contact surface; forming an array of microposts extending from the contact surface of the balloon substrate, said microposts fabricated from a shape memory material and having a proximal end secured to the substrate, and a sharpened tissue penetrating distal end; elastically expanding the balloon substrate by inflation thereby deploying the microposts into the tissue of the aneurism, the microposts being disposed in a substantially straightened configuration, being substantially perpendicular to the substrate, and being substantially parallel to adjacent microposts; engaging the microposts by activation of the shape memory material after penetration into the tissue of the aneurism wherein a distal section of each micropost mechanically captures tissue adjacent thereto and said microposts are no longer substantially parallel to adjacent microposts and no longer in a straightened configuration; deflating the balloon substrate thereby causing closure of the balloon substrate and tissue of the aneurism.