A Hoen Nerve Retractor is a precision surgical instrument used in neurosurgery to retract nerves and other soft tissue structures during surgical procedures. It typically features a long, thin handle and a curved, pointed tip for precise manipulation of tissue. The 22cm size refers to the length of the instrument, which is designed to provide optimal reach and maneuverability during surgery. This type of nerve retractor is used to gently move nerves out of the way to allow access to the surgical site.