No matter how busy you are, I suggest you spend about half an hour to see the patent engineer. Of course, you can also entrust your friends, colleagues or employees to help you communicate with patent engineers. As long as the patent engineer knows your technology or product (you can communicate by phone or qq), you only need to provide the attached drawings (sometimes you need to provide technical disclosure, depending on the specific situation). You can find an intermediary or a part-time individual.
Communicate if you have any questions.