Patent ID: 8182507

Claim:
A protection device for use in a body lumen comprising: an elongate support member having a proximal elongate segment and a distal elongate segment, the proximal and distal elongate segments each having proximal and distal ends, the proximal elongate segment having a lumen sized to slideably receive a proximal portion of the distal elongate segment; and a functional element carried by the elongate support member, the functional element being expandable from a delivery configuration to an expanded deployed configuration when the functional element is deployed in the body lumen, the functional element having a proximal end and a distal end, the proximal end of the functional element being connected to the proximal elongate segment and the distal end of the functional element being connected to the distal elongate segment at a location distal to the proximal end of the distal elongate segment, the proximal end of the distal elongate segment being slidably disposed within the lumen of the proximal elongate segment such that the proximal end of the distal elongate segment is contained within the lumen of the proximal elongate segment at a first position when the functional element is in the delivery configuration and at a second position when the functional element is in the expanded deployed configuration, a distance between the proximal end of the distal elongate segment and the proximal end of the proximal elongate segment being different in the first and second positions.