We have a simple 3D-printable object, which can be used as a medical aid. We would like to publish this object free to use to the public. We would like to keep this object and further revisions and variations of it free and freely distributable. What we are afraid of, is that a company may create a patent around it, and prevent the use and distribution of our tool.

Is publishing under one of the CC licenses enough? Which one?

We are no lawyers, so sorry if this is a bad question.