Index: firmware/App/Controllers/AirTrap.c
===================================================================
diff -u -rc70a43525f1db35c45d79d4e1b2f87f7ea84e579 -r0349cbffddfc93b2d444451906a515011a83a461
--- firmware/App/Controllers/AirTrap.c	(.../AirTrap.c)	(revision c70a43525f1db35c45d79d4e1b2f87f7ea84e579)
+++ firmware/App/Controllers/AirTrap.c	(.../AirTrap.c)	(revision 0349cbffddfc93b2d444451906a515011a83a461)
@@ -71,14 +71,6 @@
     NUM_OF_AIR_TRAP_STATES                                                                        ///< Number of air trap controller states.
 } AIR_TRAP_STATE_T;
 
-/// Quadratic coefficients ax2 + bx + c
-typedef struct
-{
-    F32 a;                                                                                        ///< Coefficient for Quadratic term
-    F32 b;                                                                                        ///< Coefficient for linear term
-    F32 c;                                                                                        ///< Constant term
-} QUADRATIC_COEFFICIENTS_T;
-
 // ********** private data **********
 
 static AIR_TRAP_STATE_T airTrapControllerState;                                                   ///< Current state of air trap controller state machine.
@@ -355,8 +347,7 @@
     F32 h14Pressure = getLongFilteredVenousPressure();
     // LDT-2384 test formula for air trap lower events for air pump duty cycle based on venous pressure
     // air pump duty cycle (% PWM) = 0.0002x^2 + 0.0925x + 25.467, where x is long filtered H14 venous pressure in mmHg before air trap lower event
-    QUADRATIC_COEFFICIENTS_T coefficients = { QUADRATIC_COEFFICIENT, LINEAR_COEFFICIENT, CONSTANT_TERM };
-    F32 dutycycleInPct = QUADRATIC_EVAL( coefficients.a, coefficients.b, coefficients.c, h14Pressure );
+    F32 dutycycleInPct = QUADRATIC_EVAL( QUADRATIC_COEFFICIENT, LINEAR_COEFFICIENT, CONSTANT_TERM, h14Pressure );
 
     return dutycycleInPct;
 }