Glad to hear about your husband! He's making real progress outta that cult!
The thing about the whole blood doctrine is that it has gotten really, really messy. I recently spoke to an aunt about how she would have let my grandmother die rather than try to explain to the doctors which fractions are acceptable (or how to explain what blood procedures are acceptable altogether). I was stunned because the GB has had such a terrifying effect on these JW's. Rather than try to understand why it's OK to accept fractions or blood products, JW's would rather die! They feel that Jehovah is going to look at them as an acceptable sacrifice...but He's not! I've also been showing some detailed information about the blood doctrine to my mom, and she couldn't believe that "fractions" were taken from blood! She thought fractions were simply conjured up out of "other things". For example, I showed her that the Society allows JW's to accept all of the fractions taken from plasma, just not plasma itself. And she stopped, and stared, and started thinking. I let it slide for the rest of that day, but I plan to continue with her. She wasn't mad at me showing her this. If anything, she was glad, and she even stated that she just didn't know enough.
I personally believe that EVEN IF the GB decided to allow all JW's to accept all blood products, JW's would STILL feel that it's wrong, and that it's OK to die instead. That's the key part: It's OK to die, Jehovah will overlook it.
It takes a LOT of time and patience, but one by one, we can extract our families from this evil cult...