Hartmann Tuning Fork C 0 (128Hz) Bonney The size of the retractor

The size of the retractor (72 x 90mm and 9 inches) will determine the size of the incision that can be made

The straight screw joint provides additional stability and strength

to dissect and remove tissue

The serrated jaws help to securely grip tissue and the curved box joint provides greater strength and control

inch) size is typically used for larger vessels

Hartmann Tuning Fork C 0 (128Hz) Bonney The size of the retractorA Hartmann Tuning Fork C 0 128 Hz is a medical instrument used to assess hearing in the surgical field. It is a metal tuning fork that produces a sound at a frequency of 128 Hz when struck. It is used to test the patient's ability to hear tones and can be used to diagnose hearing loss.