Retrieval devices and related systems and methods are provided, A retrieval device comprises an elongate element having a collapsible retriever (204) at its distal end, wherein the collapsible retriever (204) can be axially delivered over or through an introducer to the site of an object to be retrieved, e.g., a failed endoluminal device. When the retrieval device reaches the failed endoluminal device, the endoluminal device and the retrieval device are withdrawn together through the introducer. The introducer is configured to force the retrieval device down over the endoluminal device reducing the french size of the spent endoluminal device upon extraction. The collapsible retriever (204) can be configured to side-mount a delivery element, or it can be integrated into a delivery system.
