I disagree with both of you.
We‘ve used TSA Cares multiple times. They will help facilitate going thru Security or with Security Questions.
This is copied from the TSA Cares questionnaire regarding things they can help with:
- Difficulty standing or waiting in line
- Difficulty following instructions
- Mobility limitations including difficulty standing, walking or lifting your arms
- Use of mobility aids or support devices
- Internal/external devices or other concerns that may affect your ability to use screening technology
- Transporting medically necessary liquids, gels, aerosols over 3.4oz
- Traveling with a service animal
- Difficulty understanding and communicating in English
- Religious or cultural items
- Religious headwear or garments
- A Tribal traveler with cultural, sacred items and/or regalia
- Concerns regarding screening for transgender and gender diverse individuals
TSA Cares
Whether an airline will allow an item to be checked as medical equipment is up to the airline. The airline decides whether or not it’s medical equipment that can be transported without payment or counting towards bag allowance.
If it is packed in a checked bag, it will be checked before going thru security and TSA will have nothing to do with it.
If it’s in a carry on, it will go thru the x-ray machine. TSA won’t be concerned about it as long as it doesn’t contain any hazardous or prohibited material. Once it’s past Security, TSA doesn’t have anything to do with it whether the airline will say if it’s too big or heavy to be placed in the overhead bin.
I would suggest contacting the special services/disability services department of the airline with the questions.