More close up, this is the shock wave lithotripsy. You see the shock wave, our spark gap is there, and there is an ellipsoid deflector, water column, and the patient's gallbladder, and the ultrasound image goes to our computer.
The steps are, again, the physician locates the stone with a hand-held ultrasound probe, and the physician uses a little light pen to indicate the stone, and the computer system triangulates the stone location, what we call F2 point. You really have to keep this F2 point in your mind, and that F2 point is very important. The patients even move a little bit during the procedure. Take your time. After every 400 to 500 shock waves, be sure the F2 point is in the proper place and relocate the patient. An operator moves the table to the place. Again, a little bit close up. This is our ultrasound probe with the 6 red lights which is going to carry your image to the sensor, and we are looking at the patient's gallstone. This is the gallbladder. The wall appears to be pretty normal. It's not inflamed. It's not thick, There is fluid around it. It's an ideal gallbladder for the lithotripsy. It has a single stone possibly around 16 millimeters or 18 millimeters.
We put the cursor there, this is a pen. The cursor in the ultrasound machine and then we connect by that system, as I already mentioned. We carry that image to our computer monitor. Now, this patient on the table is not in the target point. We have to put this patient a little bit down and to the left side and to the foot side. There is a machine that we previously worked with in which we did the labor manual., we pushed the patient. Now, whatever the target point is, you can push the button and automatically the table comes to your target point as you see here. Everything is in the zero point: the patient, gallstone is in the proper target, you can start to pulverize. This is, again, a computer triangulation and this is your stone at 2 point. Now, when everything is ready it looks like that. I hope every time is going to be this ideal. Single stone, probe, and our shock wave lithotripsy system.