Technologies are generally described for percutaneous valve delivery systems with continuous blood flow. By providing a temporary perfusion channel in balloon-expandable stent and/or valve replacement systems, blood flow during the deployment of the stent or valve, when the inflation of the balloon may interrupt the blood flow, is ensured. The perfusion channel may be formed employing an elongated braided structure, which may be expanded radially and outwards upon being longitudinally compressed. One-way blood flow through the channel may be accomplished by providing a temporary check valve.
