RETRIEVAL SYSTEMS AND METHODS FOR USE THEREOF

摘要

PROBLEM TO BE SOLVED: To provide improved structures for removing obstructions from body lumens.SOLUTION: A device 200 includes clearing of blockages within the vasculature by addressing the frictional resistance in the obstruction prior to attempting to translate and/or mobilize the obstruction within the body lumen. The medical device can include a capturing surface that is configured to generate a spring force against the translating surface when a proximal force applied by the main bundle 202 of wires compresses the capturing surface against the translating surface when encountering resistance from the obstruction. The capturing surface is further configured to have a sufficient axial stiffness to direct the spring force and proximal force to the open proximal end when the open proximal end engages the obstruction. The capturing surface is also sufficiently flexible to conform to the shape of the vessel.SELECTED DRAWING: Figure 10