Patent ID: 7942894

Claim:
An embolic device deployment system, comprising: a tubular element having an outer wall, an inner wall defining a lumen, and a wall thickness between the outer and inner walls of the tubular element; a catch movably located within said lumen, the catch comprising a pair of jaws, at least one of said jaws is biased toward an open position providing a spacing between the jaws which is greater than spacing between the jaws at said closed position, the catch having a closed position, said catch being biased to the open position and sized to hold a portion of an embolic element when in the closed position; said tubular element having a constraining section which constrains the catch to the closed position and a release section which permits the catch to move toward the open position when the catch is located at the release section; said constraining section has a distal end edge at the distal-most location of the tubular element, a distal portion that is located distally of the release section, and a proximal portion that is located proximally of the release section; said release section comprises a pair of generally opposing apertures that are each between said distal and proximal portions of the constraining section; each aperture of the pair of apertures is an opening completely through said wall thickness of the tubular element to effect said open position at which one said pair of jaws enters one of said pair of apertures and the other of said pair of jaws enters the other of said pair of apertures to release the embolic device; and said constraining section distal portion of the tubular element is a tubular portion that is a cylinder distal of the apertures that extends for a length of the tubing between the distal-end edge of the tubular element and the distal-most extent of the apertures, said constraining section cylinder distal of the apertures is proximal of the distal-end edge thereby allowing the catch to move to the open configuration when proximal of the distal-end edge of the tubular element, thereby releasing the embolic device into the cylinder distal of the apertures.