Herbert screw
Encyclopedia
The Herbert screw is a variable pitch cannula
ted screw typically made from titanium
for its stainless properties as the screw is normally intended to remain in the patient indefinitely. It became generally available in 1978.
Cannula
A cannula or canula is a tube that can be inserted into the body, often for the delivery or removal of fluid or for the gathering of data...
ted screw typically made from titanium
Titanium
Titanium is a chemical element with the symbol Ti and atomic number 22. It has a low density and is a strong, lustrous, corrosion-resistant transition metal with a silver color....
for its stainless properties as the screw is normally intended to remain in the patient indefinitely. It became generally available in 1978.