You a have best opportunity to get back data from corrupted Pen Drive with the help pen drive recovery software with in a few clicks....
http://www.systoolsbkfrecovery.com/corrupt-pen-drive-recovery.html
Generally, restoring data from a corrupted pen drive is really difficult, especially when the drive is mechanically corrupted. But, that is not to say, there is no any chance.
You also could try data recovery software to take a chance for free: http://blog4mark.blogspot.com/2012/11/how-to-repair-corrupted-pen-drive.html
Or, you also could do some research about data recovery software online and opt for a proper one based on your own conditions.