In reply to balmybaldwin:
Applying the sentencing guidelines for causing gbh with intent, which is what this could well amount to, something in the region of 6 years plus after a trial, depending upon the severity of the injuries.
This woman was very lucky. If, a big if, anyone is ever arrested then attempt to cause gbh with intent would fit the bill.
That's the legal position, what it's actually worth is a different question....