I can't get any permit from cic I almost loss my mind very difficult situation
You'd have to withdraw your refugee claim as
@sweet_mahsa said, then you can get your passport back. If they know there is a spousal sponsorship application in play, you can request an administrative deferral to avoid deportation. If you don't withdraw, they would see you travelled home, and nullify your case (unsure the process here, but if you returned, then it must be safe enough, no?).
Generally speaking, you could leave Canada for a short duration (most say less than a month; but that's subjective based on the officer's tolerance) without having your inland sponsorship refused, because you didn't remain in Canada.
To return to Canada, you will require a visitor visa to be able to re-enter. Given the refugee claim, I would hazard a guess to say, they will likely give you a very difficult time at the border. My guess is they would likely refuse entry.
So, that's the bad -- sorry about that, but it's important that I provide a realistic perspective.
Now, the good:. I'm guessing you're almost done. Once you land, you get your PR Card in ~61 days. You can leave immediately after. If you cannot wait the 61 days, the landing officer can explain to you how to apply for a PR Travel Document (PRTD). It has to be done overseas.
Given your advanced stage (considering you applied sometime in 2016), I would say you're close to being done. There is no fast forward button, or means to get expedited processing.
I am assuming you can't just board a flight tomorrow, assuming you had your passport. So, I might suggest someone brings a cell phone or tablet to the hospital so you can Skype. Or something to fill the gap of time until you can return.
If you get stuck and have to leave and cannot return, your file will be refused, and you'll likely have no choice but to apply Outland.
Lastly, I don't envy your situation. I hope for a speedy recovery for your sister. In the end, we are all family, and family is all we can really count on.
