SRV, hendrix style bend..need help..

I don't know what this is called, but when you are barring 2 strings with your index finger and then bend another string but still have the 2 fretted and immediately play them. I need tips on how to do this.. here is an example from SRV's Pride and joy...

-------12-----12-12------12-12------|
----12----b15-12-12--b15-12-12-b15--|
b14---------------------------------|


Thanks,,

Play the first lick as it is..i mean until the 3th note..and then don't still barring with your index finger but put your index at the 12th fret..and and the pinky one at the 15th(with bend)...I hope this help!

use the index finger to barre the strings, and then you'll have another two fingers for the bend..
dont forget that srv is strumming this kind of bends from the highest string to the lowest and not the opposite..