Cutter cannulas are instruments used in arthroscopic surgery to remove or cut tissue, such as damaged cartilage, ligaments, or other structures within a joint. These cannulas are part of a shaver system, which is an essential component in orthopedic and arthroscopic procedures that require the removal of unwanted or unhealthy tissue. Cutter cannulas are typically connected to a shaver console and a high-speed rotary cutting device, allowing surgeons to precisely trim or resect tissue within the joint.