Lipo or Vaser Lipo for Losing 30 to 40 Lbs?

Unfortunately, liposuction is not a method of weight control and he probably wouldn't be able to remove this much fat with this technique, either.  In addition, his diabetes puts him at a higher risk of developing surgical complications. It's better if he drops the weight the old fashioned way.

A huge number of Americans are struggling with their weight and many cannot and do not want to take the time to adjust their diets and increase their caloric expenditures through exercise. As attractive as Liposuction may seem, it is DEFINITELY NOT the way to lose weight.
Liposuction is a superficial contouring operation meant to smooth localized fat deposits NOT carve away excess weight. Liposuction can only remove about 5 quarts of fat in any one safe operation. That would not even make a dent in someone who requires losing a large amount of weight.

Many patients are motivated by their liposuction results to ramp up their exercise or control their eating habits. But this mindset is usually already there prior to surgery. Liposuction, first of all, will not remove that much in the way of poundage. Second, the amount that can be safely removed at one time is limited to 5 liters. Finally, as a diabetic he has increased operative risks.
Studies have demonstrated that losing just 10% of your body weight can stop Type II diabetes. He is at risk for heart disease, kidney disease, eye issues, peripheral vascular problems just to name a few.
If your husband is lazy he will always be lazy until he begins to care about his health. I think that those who don't at least try to help themselves are just being selfish. They don't care that there are others that are affected or will be affected by their disease. You'll be the one burdened when he has other disabling issues.
So off to the gym with him!

Dear Bxbabe:
Liposuction, by any subset technique, is not for losing weight. It is for removing localized areas of fat that do not respond to diet and exercise. The gentleman you describe needs to lose weight by standard means. As his doctor suggests, his diabetes may improve, and certainly his healhty will improve. He can live a fuller life this way.
So first things first. Do not focus on which lipo method to use. Focus on health then consult a board-certified plastic surgeon.

Your husband falls into a very common category of patients: those who are overweight. Many are even in the obese category. Patients who need to lose weight are NOT candidates for liposuction (of any kind). Liposuction is a great tool to improve the contour of "problem areas." Problem areas can be defined as an area of the body that does not improve with diet and exercise modification. Liposuction is NOT a weight loss procedure.
Your husband should see his medical doctor, get stared on a realistic diet modification and exercise regimen. It may take a lot of time to get the results he wishes, but it is the safest method of weight loss.