Patent ID: 8328860

Claim:
An implant, comprising: a primary coil defining a lumen disposed along an axis, the primary coil having a proximal end defining a proximal aperture and a distal end defining a distal aperture; a secondary coil further defining the proximal aperture which secondary coil is coaxial with the primary coil and having an outer diameter, an inner diameter, a distal end and a proximal end; a stretch-resistant member disposed within the lumen; a member comprising a proximal member section, a distal member section and a central axis that intersects the proximal aperture, the distal member section being coupled to the stretch-resistant member within the lumen, the proximal member section having an engagement portion exterior to the lumen wherein said engagement portion and said member are capable of moving distally into the lumen, the distal member section configured to engage the inner diameter of the secondary coil to prevent proximal extraction of the member from the secondary coil, the member being freely distally movable with respect to said secondary coil; and a retainer engaging the distal aperture and coupled to the stretch-resistant member within the lumen.