Parsing using Reg EX function

Hello Everyone,

Can some one please tell me the regex expression to parse the following string

GASKET,HEAT EXCHANGER:DOUBLE JACKETED,37-3/8" ID,38-3/8" OD

Data in few rows is even like the below format

STUD,ALL-THD:1-1/8" DIA,10-1/2" LG,ALLOY - 3rd row should be empty in this column of data.

I need the split at , and :

my requirements needs regex expression and not 'text to columns' function.

Thanks,

Manikanta