A device, sometimes referred to as a clutch brake warning indicator, that provides feedback, which may be tactile, audible or visual, to the vehicle operator as the clutch pedal is nearing the point of its stroke where the clutch brake will be engaged. The structure includes a substrate, a plurality of cathode layers, a plurality of gate extended layers, a plastic dielectric layer, a plurality of dielectric openings, and a plurality of gate electrodes. The implant assist device includes an acoustic transducer adapted to receive the acoustic signal transmitted by the implantable medical device, and controlprocessing circuitry configured to evaluate a performance of the acoustic link. A controller controls the operation of the valve in synchronization with the respiration of a patient, based on the changes in the pressure detected by the pressure sensor.