The answear is Yes you can check the links for the articles confirm your answearhttps://www.technologyreview.com/s/546276/this-40000-robotic-exoskeleton-lets-the-paralyzed-walk/

https://www.huffingtonpost.com.mx/entry/robotic-suit-paralyzed-breakthrough_us_57ac6892e4b06e52746f54f6

https://www.sciencealert.com/this-new-robotic-exoskeleton-is-helping-paralysed-patients-walk-again

https://www.cnbc.com/2015/04/29/the-bionic-suit-that-helps-paralyzed-people-walk-again.html

Yes, your thinking is absolutely correct and timely.But Power source is the biggest challenge for such kind of robots.If pneumatics compressor is an additional burden unless it is a wheelchair to accommodate.

Dear Pooya Thanks for you recommendation

That is one of the main applications for the exoskeletons, in order to amplify the force or moment in one or more human joints.

Just for consideration:

The input commands may be more tricky for the user than the programmer/developer. Note the bioelectrical impulses evident in muscle use, how does one train to use that non-existent muscle? This is something that I have been pondering as of late. As non-existent muscle use would be difficult to teach, but I imagine it would not be impossible to learn. Though I think of someone who does not have the manual dexterity (such as the actor William Shatner's comment in his autobiography on his inability to preform the Vulcan salute in the TV show 'Star Trek'), trying to learn to behave a particular way takes a great deal of practice. Would that person (again, consider Shatner) be able to enable their exoskeleton's functions as well as they would desire, or is it actually impossible? Or perhaps, if the input was provided by ulterior means (e.g. finger movement "mapped" to an exoskeleton's leg appendages) though it is rather simplistic in the coding, what happens when the user requires their fingers (or whatever ulterior input means) for another function? All this sheds some of the difficulties on the prescribed device's functionality, though in theory, it is possible and highly sought after (for good reason) in the bio-engineering community. I only mention this if you happen to be trying to develop such a system, as the challenge to the input methods in this sort of situation seem to equal the challenge in the output functions.

Answer is Yes and now there are many, medically validated, certified and approved commercial Exoskeleton Rehab devices available in the market.

there are many limitations with the current technology which require patients to use crutches to support them and increase balance or limitations in battery life and power which allow to use it for small amount of times and need to be recharged again and there are many problems associated with the technology limitations. However in the future, it is expected for exoskeleton industry and technology to grow up

That is exactly what they are trying to do:

https://www.projectmarch.nl/en/home