Patent ID: 7819890
Filing Date: 2010-10-26
Classification: A61F,A61M

Abstract:
1. An assembly comprising a medical device and a retrieval catheter for use in retrieving the medical device from within a body vessel, the retrieval catheter comprising: a distal tip having a wall with an inner surface and an outer surface, the wall having a distal end and a proximal end, the inner surface defining a lumen, the outer surface tapering inwardly toward the distal end, the wall having a thickness between the inner surface and outer surface which tapers in a decreasing manner in a direction from the proximal end to the distal end; and the lumen having a diameter at the distal end that is less than a diameter of the medical device, the wall having an undeflected configuration prior to retrieval of the medical device into the lumen, a deflected configuration during retrieval of the medical device into the lumen and the wall returning to an undeflected configuration after complete retrieval of the medical device into the lumen, the distal end being rolled inwardly in the deflected configuration such that a distance between the proximal and distal ends of the wall is less in the deflected configuration than in the undeflected configurations.