A medical device and a method for preparing a patients body to receive a bodily implant are disclosed. The medical device includes a needle member configured to be inserted into a tissue layer. The needle member has a proximal end portion and a distal end portion. An adjustment member is coupled to the proximal end portion of the needle member. The adjustment member includes an adjustment screw and a nut for setting a predetermined depth of insertion of the needle member within the tissue layer. The adjustment member further includes an adjustment member support configured to provide a support to the adjustment screw and the nut. The adjustment member is configured to move between a first position and a second position with respect to the adjustment member support to limit insertion of the needle member within the tissue layer to the predetermined depth.
