Patent ID: 9707078
Date: 2017-07-18
CPC Classifications: A61B,A61F,A61M

Claim:
1. A method for delivering an expandable member through the vasculature of a patient comprising: delivering in an unexpanded state an expandable member at a distal end of an elongate shaft to a treatment site, the expandable member having a distal end and a proximal end, the expandable member comprising an inner expandable member and a plurality of outer expandable members at least partially surrounding the inner expandable member, wherein the plurality of outer expandable members are not fixed relative to an outer surface of the inner expandable member at an area between proximal and distal ends of the inner expandable member, and each outer expandable member comprises a main section and at least one substantially narrowed section, the at least one substantially narrowed section distal and/or proximal of the main section, the main section of each outer expandable member extending along in contact with the outer surface of the inner expandable member when the expandable member is in the unexpanded state; positioning a prosthetic device in a crimped state on the expandable member; expanding the inner expandable member in a passageway of the body of the patient; expanding the plurality of outer expandable members in the passageway, wherein expansion of the inner and outer expandable members expands the prosthetic device at the treatment site; and permitting blood to pass through a plurality of gaps formed between an inner surface of the passageway and outer surfaces of the inner and outer expandable members.