Can someone tell me how to patent my original invention

Looking for any help that can be provided, thank you. I have an original invention. I've done an exhaustive search on the USPTO, also haven't found anything like it. I work in the medical field and have started doing a unique method for handling patient's IVs and I believe it is patentable and could be incredibly valuable to the medical industry.

Can someone tell me how I can patent this invention? It's a combination of a device along with a process which never fails. I have had other nurses marvel over how quickly and easily I'm able to deal with IVs compared to them, and have even successfully trained other nurses in a very short period of time on how to use the invention. They've said to me that I simply MUST patent this idea because it would be able to shorten times for prepping patients for surgery all across the world!

That said, I just don't know...where do I begin the patent process? Is the patent process extremely expensive? And how will I know that I'm not going to be taken advantage of? I have stopped showing other nurses and have clearly documented my invention as well as I know how, as well as I have prepared, signed, and notarized a document outlining exactly when I first started using and making this device myself. Additionally, I mailed a second copy of that letter to myself. But should I be using a patent attorney? Or should I really just focus on doing this myself? Because it seems like the patent process could be quite expensive, and I have to be more strict than others with my finances because I do have a family to support.

Yes YES YES...

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Thanks,

Dave Korpi
dave.korpi@gmail.com

I think patent procedure is expensive but its essential to conduct a legal business worldwide.