Apparati, instruments, systems and methods of use and assembly

A surgical method for harvesting bone graft material, comprising:

• obtaining a harvesting system including a drive member and a transparent cylinder with a first end and a second end, a cutting member located at the first end of the cylinder, a shaft coupled to the second end of the cylinder, the drive member removably coupled to the shaft, and a one-way valve positioned at the first end of the cylinder so as to permit flow in one direction but prevent flow in a reverse direction;
• positioning a cutting member at a bone of a patient selected for harvesting;
• activating a rotation tool coupled to the drive member so as to transmit torque to the cylinder and the cutting member;
• cutting bone graft material from the bone and receiving the bone graft material into the cylinder during rotation of the cutting member;
• flowing air up, through a second end of the apparatus, and
• exiting the drive member through at least one opening in the drive member during distal movement of the cutting member into the bone;
• and
• removing the apparatus from the patient while the one-way valve passively closes off air flow in the opposite direction to maintain equal pressure in the cylinder and the harvest site to prevent the bone graft material from being pulled out of the cylinder during removal.