Model 973-B Neonatal Rat Gas Anesthesia Head Holderoffers maximum stereotaxic adjustment available for positioning the head, allowing versatility to angle the head without obstructing the ability to deliver gas anesthesia. Custom designed palate bar insures head stability. A series of gas masks are included for various age ranges.

Dorsal/Ventral adjustment dial – Calibrated in 100 micron increments, 1 mm per revolution.
Dorsal/Ventral adjustment – 30 mm
Dorsal – 10 mm above ear bar zero
Ventral – 20 mm below ear bar zero
Dorsal/Ventral tilt – 25° (5° graduations)
Coronal adjustment – 35° (5° graduations)
Adaptor Plate A/P adjustment – 44 mm
Gas Anesthesia Mask – inlet/outlet ports (1/8″ dia.)

Factory recommends Model 921 Zygoma Ear Cups for use with Model 973-B Neonatal Rat Gas Anesthesia Head Holder