For burred needles on my sewing machine(not a quilting machine so I don't know if this will help you or not), I take the needle out and carefully sharpen it. I have a very fine emery file(like for fingernails), and I hold the needle at about a 10-15 degree angle. I slide the needle softly across the emery file, rotating it between my fingers as I slide it. It's the same forward motion like I would for sharpening a knife, except that at the same time I rotate the needle.
I do this a couple of times and then test it to see if the burr is gone. Usually one time does it. I have been able to get a lot more use out of my needles this way.