Occluded vasculature such as occluded arterial vasculature can be recanalized using a device that is configured to penetrate an occlusion, while limiting a distance that said penetration structure can extend in order to limit inadvertent vascular damage. The device can include an elongate shaft of a guidewire and a stylet disposed within a lumen of the elongate shaft such that the stylet is selectively actuatable within the elongate shaft.