A tissue repair device. The tissue repair device includes a tubular shaft having a longitudinal bore for delivering biological material to a soft tissue defect, and an awl having a distal end configured for microfracturing bone underlying the defect. The tubular shaft and the awl are movable relative...http://www.google.es/patents/US20080132932?utm_source=gb-gplus-sharePatente US20080132932 - Chondral Defect Repair
