Can I use at home Microcurrent device Pure Face Lift if I have metal screws in my elbow and a silicone chin implant?

Hello! I recently purchased the at home Microcurrent device Pure Lift Face. My questions: 1. Says not to use device if you have metal implants. I have two metal screws in my elbow due to breaking it. Since I won't be going over my elbow with this device, is it still ok to use? 2. I have a chin implant. I believe it's silicone. Since I use this device on my face, is it fine to use? Is it good enough to just avoid using the device directly on chin? Thanks! T