What u mean by this question ? Machine does not work or the treatment does not work for you ?
Pleas clear the question
Ultrasound technology uses sound waves bouncing off tissues to look inside the body. Ultrasounds are used for imaging. Shockwave therapy uses sound to obliterate small objects; it is used to treat kidney stones.
Extracorporeal Shock Wave Lithotripsy (ESWL) is a non-invasive procedure that uses high frequency sound waves directed at the kidney stone to break it into smaller fragments, making it easier to pass through the urinary system. This procedure is often used to treat kidney stones that are too large to pass on their own.
When a system does work on its surroundings, its internal energy deceases. This is because some of the internal energy of the system is being used to perform the work.
When work is done on an object, it gains energy in the form of kinetic energy or potential energy depending on the type of work done. The object's speed, height, or deformation may change as a result of the work done on it.
Extracorporeal shock-wave lithotripsy is a non-invasive procedure used to break up kidney stones into smaller fragments that can be passed more easily through the urinary tract. This is typically done using shock waves generated outside the body that are focused on the stones. It is a common treatment for kidney stones that are too large to pass on their own.
the procedure is termed extracorporeal shock wave lithotripsy (ESWL).
Lithotripsy is the use of high-energy shock waves to fragment and disintegrate kidney stones.
Prior to the lithotripsy procedure, a complete physical examination is performed, followed by tests
Before the advent of lithotripsy, surgery was used to remove kidney stones. This approach is uncommon today
Lithotripsy
lithotripsyLithotripsyLiThOtRiPsYextracorporeal shockwave lithotripsy (ESWL)Extracorporeal shock wave lithotripsy (ESWL) means destruction of a kidney stone or gallstone by ultrasonic waves traveling through water.lithotripsy
Extracorporeal shock wave lithotripsy
The recovery time for ultrasonic lithotripsy surgery will vary with each person. On average, the recovery time is less than 4 weeks.
lithotripsy
In some patients a 4mm kidney stone may not need lithotripsy, however, for some patients this may be too large to pass without assistance.
How soon after lithotrypsy can a person have it again
Some patients may have a stent placed prior to the lithotripsy procedure. A stent is a plastic tube placed in the ureter which allows the passage of gravel and urine after the ESWL procedure is completed.