Vane Air Flow Meters. A vane air flow meter (also known as a âflap styleâ meter and a VAF sensor) is an early type of air flow meter that measures air intake volume. This type of meter uses a spring-loaded flap that is attached to a variable resistor. As air enters, it pushes against the flap or plate opening it.
Bladder stones can be removed surgically by a cystotomy, opening of the bladder. Stones lodged in the urethra can often be flushed into the bladder and removed, but sometimes a urethrotomy is necessary.ladder stones can be removed surgically by a cystotomy, opening of the bladder. Stones lodged in the urethra can often be flushed into the bladder and removed, but sometimes a urethrotomy is necessary.
Bladder stones are small mineral masses that develop in the bladder, usually when the urine becomes concentrated. Urolithiasis refers to stones in any part of the urinary tract, including the kidneys, bladder or urethra.The stones can be called calculi.Spinal cord injuries that result in urinary incontinence, an enlarged prostate, or recurring urinary tract infections are common causes of concentrated and stagnant urine.ladder stones should not remain in the bladder. Small ones may usually be flushed out by drinking more water-at least 6 to 8 glasses (1.2 liters) of water a day. Patients should be guided by what their doctor tells them.