A bendable medical instrument including: a handle at a proximal end of the bendable medical instrument, a modular distal shaft including a plurality of vertebrae configured to bend and situated near a distal end of the bendable medical instrument, a bendable internal rod disposed through at least some of the plurality of vertebrae, the bendable internal rod having a modular cell structure, and a distal tip coupled to the modular distal shaft at the distal end. The plurality of vertebrae configured to bend to position the distal tip in a patient and the bendable internal rod configured to bend with the plurality of vertebrae.
