Stereotactic frame and introducer needles, Bristol,...
Stereotactic frame and introducer needles, Bristol, England, 1958
Stereotactic frame and introducer needles made and used at the Burden Neurological Institute. With the patient under general anaesthetic the stainless steel frame is secured to the skull with the 4 pointed screws. The post with crocodile clip is screwed into the needle holder (on the anterior/posterior slide) and is used to support the sheaf of electrodes when the needle is being withdrawn. The two adjustable rods on the ends of the lateral slide are for positioning the frame (and head) for the X rays.