device is disclosed the medical device includes a body having a proximal end which is hand manipulated and a distal end which includes a manipulator a light emitting device is centrally disposed at the distal end an imaging device is centrally disposed at the distal end for imaging at least a portion of the region illuminated by the light emitting device also disclosed is a tool for extracting an artificial lumbar disc from between a pair of vertebral plates the extraction tool includes a handle a member for transmitting force and a sharpened end specially configured to be placed between the artificial disc and the vertebral plate further disclosed is a tool for implanting or explanting a ball to or from an artificial lumbar disc the implanter explanter includes a pinion shaft and a pinion shaft enclosure a tightening knob is disposed at the proximal end of the shaft enclosure and coupled to the pinion shaft a pinion is disposed at the distal end of the pinion shaft a grappling device is disposed at the pinion and it includes a pair of semi circular rings when the pinion is rotated the semi circular rings move relative to one another and are capable of grasping or releasing the ball application_number US 68478707 A description fig1 illustrates a prospective view of the tweeae endoscope having digital inserts 111 this figure demonstrates the medial and distal manipulators 101 102 which control the opening and closing of the pituitary forceps end manipulator 103 also illustrated is an on board electronics panel 104 located on the lever 105 of the medial manipulator 101 the electronics panel 104 preferably includes.