Patent ID: 8688198

Claim:
A site marker delivery system comprising: an outer cannula having an open distal end and a proximal end, said outer cannula defining an inner lumen for receiving at least one marker moveably positionable within said inner lumen at a first position; an inner cannula that is selectively positionable within said inner lumen of said outer cannula, said inner cannula including a distal end and a proximal end; an actuation mechanism connected to said inner cannula for selectively moving said inner cannula into temporary engagement with said marker while said marker is positioned at said first position within said inner lumen, said actuation mechanism operable for moving said marker from said first position through said open distal end of said outer cannula to a second position external of said inner lumen; and a grommet slidably attached to said outer cannula, wherein said inner cannula is moveable axially relative to said grommet and said outer cannula is moveably axially relative to said grommet through application of an axial force to said outer cannula.