It's tough to give medical advice on the internet.  I'm not a doctor.  I have used both indwelling catheters, and intermittent catheters.  You can do some research online as to how each type works.  I'm not sure if either one would be the best solution to your incontinence. All that being said I strongly urge you to see your doctor and discuss this with them.  You may wish to ask your doctor for a referral to a urologist, I think it would be well worth your time.  Please don't go sticking anything in to your bladder with out qualified medical advice it could be dangerous and make your current problems worse.