That is a high pressure compressed gas cylinder. The pressure in it is usually around 3,000 psi and not 300 psi.

Where is the environmental benefit? Where will they get the energy to compress the gas? All they are doing is transferring the pollution from the city streets to a very inefficient power generating station our side town.

Granted IC engines, and esp. those in third world countries are extremely inefficient and horribly polluting but to beat one's chest and say that you have solved the pollution problem with compressed air is a waste of good engineering minds.

I had my prostate out in 2006 with the di Vinci robot and could not have asked for a better outcome. One hour after the op. I was walking in the hall and ready to go home. I had to stay 2 nights because they wanted to make sure I was stable and the hospital needed the money. I stayed at home for a few days and then flew to Calif. for a week.

Even the removal of the catheter was painless and the bladder control returned within 2 weeks.

I have a number of friends who have had the old style prostatectomy and most say that the recovery time was up to 6 months. Many said that even after 3 months they could not pick up a cup of coffee off a table without having the feeling that their stomach was falling out.

The di Vinci is going to be the way of future medicine. With medical costs what they are getting the patient out of the hospital asap is where is happening.