B1/B2 visa for Wife

Hi All,

I am currently in US on H1B visa and my wife is having b1/b2 visa valid till 2018. It was sponsored by her sister and now her sister is nack to India.
Can she travel to US on B1/B2 visa saying that she is coming here to meet me or a new stamping is required or there will be any problem at the port of entry?


On a valid visa new stamping will not be required. She can travel on current visa