Insulin administration with long term cannulas.

Been thinking of having a pump for a while due to lipohypertrophy, the clinic and GP seem not to want me to have this
due to expenses but I think having a long term cannula situated could be the lesser of the two evils and cheaper, I know cancer patients have these for their chemo and other drug administration so what are your thoughts on this idea?

Sounds interesting, will check it out, thanks for the advice.