"(He) sustained injuries while in the course and scope of his employment with Harris County," the lawsuit reads.
The lawsuit says the employee was injured after he flipped out of a "gravity chair" on July 26.
"The defendant knew or should have known of this dangerous condition," writes the suit. "The defendant neither warned of this dangerous condition, nor took any steps to make the condition safe."
ABC13 attempted to ask Harris County Attorney Abbie Kamin's office additional questions about the lawsuit, but they wouldn't provide any details that weren't spelled out in the lawsuit.
Questions that went unanswered included what agency the employee works for, why he was at the Children's Museum of Houston, and what he was doing in the chair while on business as a county employee.
ABC13 also asked the Children's Museum of Houston about the lawsuit and they provided the following statement:
"The safety of our guests is and has always been our highest priority. Our exhibits and interactive experiences continue to be designed and maintained with rigorous safety standards. Additionally, we have protocols in place to ensure that any incident is properly recorded and addressed. We have not been served with the lawsuit referenced in recent media coverage and are working to ascertain the facts of this case. We ask for your patience at this time and will share additional information as appropriate as we continue to prioritize the well-being of every guest."
The lawsuit states the county is suing the museum "for the medical and income benefits paid to or on behalf of its employee."