Curved bore drilling method and apparatus

摘要: A curved bore hole drilling apparatus and method utilizing two power driven drill shafts equipped with flexible shaft sections on the distal ends thereof each section having a cutting tip. semicircular channel shaped guide loosely engages end is caused to rotate through an approximate 90° angle as tips are advanced. The guides pivotally mounted for rotation in substantially same plane end, when rotated so meet, of associated rotating bits form which may extend 180°. then backed out be used attachment tie such wire or suture passed bore. parallel relation within housing advanced toward surface bored rectilinear direction normal bored. In second embodiment pulled their arcuate paths by means worm pinion drives under control operator. Each has slotted connection its advance against spring pressure. As returned Still another utilizes approximately 180° circumference into bone surface. this embodiment, located anchoring sleeve resists unbalanced forces tending laterally shift housing. use enable formed joint cavity using arthroscopic surgical techniques.