PERRY SIGMA II

Description of Event or Problem

DURING THE ASCENT OF OUR LAST HYPERBARIC O2 TREATMENT, IT WAS NOTED THAT THE CHAMBER WAS ASCENDING SLOWER THAN NORMAL. THE DIVE WAS COMPLETED WITH NO ILL EFFECTS TO THE PT. AFTER THE DIVE WAS COMPLETED, THE CHAMBER MFR (PERRY BAROMEDICAL) WAS CALLED AND TOLD OF THE PROBLEM. THEIR TECH, (B)(4) CALLED US BACK AND INSTRUCTED US ON HOW TO ADJUST THE NEEDLE VALVE CONTROL KNOT TO INCREASE THE RATE OF ASCENT OF THE CHAMBER. THE RATE ADJUSTMENT WAS TESTED DURING 5 MORE TIMED DIVES OF THE CHAMBER. THE NEXT MORNING ((B)(6) 2012) THE CHAMBER WAS TESTED AGAIN WITH COMPRESSION AND DECOMPRESSION RATES FALLING WITHIN THE MFRS SPEC'S. (B)(4) (PERRY'S TECH) WAS ON THE PHONE DURING THE TESTING AND APPROVED THE USE OF THE CHAMBER. (B)(6), WAS INFORMED OF THE SITUATION WITH THE CHAMBER. (B)(4).