Device, system and method for implantation of filaments and particles in the body

A device for inserting a filament having a diameter into a site in the body of a subject, the device comprising:

• a. an outer cannula having an axis, an interior wall, a distal end for inserting into the site, and a proximal end;
• b. an inner cannula having an inner diameter corresponding generally to the diameter of the filament, said inner cannula being disposed in coaxial telescoping relation with respect to said outer cannula;
• c. a mounting arrangement permitting axial movement of the inner cannula with respect to said outer cannula;
• d. an actuator mechanism for urging the inner cannula in axial reciprocation consisting of forward motion and retrograde motion with respect to the mounting arrangement;
• and
• e. coupling means for releasably coupling to said inner cannula a portion of a filament contained within said inner cannula to cause said filament to move with said inner cannula during forward motion of said inner cannula with respect to said mounting arrangement and for releasing said filament during retrograde motion of said inner cannula to permit said inner cannula to reciprocate rearward without causing said filament to move with said inner cannula.