You should consult with an attorney. You may have several claims: you may have a civil action against your co-worker for assault and battery; you may have a workers compensation claim, if you were injured on the job; you may have a wrongful termination claim against your company.
An attorney will be able to analyze the facts and law and determine which, if any, of these claims are in fact valid.
Disclaimer: This answer is provided as a public service and as a general response to a general question, it is not meant, and should not be relied upon as specific legal advice, nor does it create an attorney-client relationship.
You have potential tort claims to bring.
You might find my Legal Guide helpful "How to Choose A Lawyer For You"
You might find my Legal Guide helpful " What Do I Tell My Lawyer"
No one can know what the record is in the case because online we cannot see your documents. You need a lawyer. Check with a lawyer in your locale to discuss more of the details.
Good luck to you.
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