A minimally invasive and particularly small system for drilling into bone) and for providing for delivery of medical treatment is provided. The drilling system includes a miniature shaft, a bit, a guide tube encapsulating the shaft during drilling and a capillary tube thereafter, a capillary tube, and a stylet. As a result, a hole, targeted towards a cancerous lesion within the bone, is possible. After removal of the shaft, the treatment may be introduced via the capillary tube after removal of the stylet.
