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.
Kidney stones are one of the most common problems associated with the kidneys. Millions of people have either had an episode with a kidney stone, or get them regularly. They are a painful condition.Sometimes they pass from your kidneys out of your urinary tract on their own, but sometimes they require in-depth treatment to get rid of them.ize. The size of a kidney stone varies, ranging from as small as a pebble to as large as a golf ball. Larger stones are not be able to be passed on their own and require surgical intervention. The smaller stones, many times, can be passed on their own.