LRS Ortho is developing a new aiming device for orthopedic surgeries. The device helps to find a specific position of “blind holes” for placing the distal "fixation" screws to hold the IM Nails firmly inside the bones.
In contemporary Orthopedics, the Long bones fractures of the upper and lower extremities are stabilized with metal rods (or so-called Intramedullary Nails –IM Nail) which are implanted into the hollow center (Intramedullary canal) of bones. However, the implanted nail alone may provide only limited stability to a fractured bone because the two parts of the bone may move (rotate and/or telescope) on the Intramedullary Nail.
Modern IM Nails usually have a pair of spaced parallel holes that are positioned diametrically across the IM Nail near the distal end of it and another pair of spaced holes near the proximal end. These holes are formed to accept the fixing bone screws, but when the nail is installed, these holes are obscured by bone and soft tissue and are invisible.
The problem has always been to get correct alignment for drilling and placing bone screws through the bone into holes of IM Nail.  For proximal holes the problem is solved relatively simple with a mechanical drill guide connected firmly to the proximal end of the nail and with the help of a key-slot fixer, it positions the drill guide precisely in place and prevents its rotational displacement. For the distal end holes, however, this technique can't be employed because the long nail is not sufficiently rigid and its distal end after nail insertion may deviate from the original, un-strained position.
The L-RaySpot system solves the distal end aiming problem using a novel, laser-based opto-mechanical aiming device, computerized image processing and special routine of using the said device that provides simpler, more accurate and safer way of placing screws into blind holes of IM Nail.