preferred albeit not limiting embodiment with the understanding that the present disclosure is to be considered an exemplification of the present invention and is not intended to limit the invention to the specific embodiments illustrated fig1 11 which are now referenced illustrate the present invention and the manner in which it is assembled like reference numerals refer to like components in the various figures the needle depth controlled jamshidi assembly 10 comprises a jamshidi type needle 12 and an outer cannula assembly 14 the jamshidi type needle 12 is slidably disposed within the outer cannula assembly 14 the jamshidi type needle 12 includes a cannula 16 which is secured to a handle 18 the handle 18 includes a collar or cylindrical portion 20 this cylindrical portion 20 is fixedly secured to the cannula 16 the handle 18 preferably has an ergonomic shape that can comfortably fit into a surgeon 39 s or medical technician 39 s hand the handle includes an upper 15 curved portion which is shaped to conform to an individual 39 s palm the lower portion of the handle 18 is also curved the curve of the lower portion of the handle is designed to be grasped by the fingers of an individual to assist in the control of the jamshidi type needle 12 the handle 18 is used to drive the cannula into and sometimes through bones of a vertebra sometimes the jamshidi type needle 12 can be driven through the bone only by using pressure exerted by an individual 39 s hand other times a hammer or other instrument must be employed to drive the needle.