This tip is from the excellent MedWild YouTube channel. Recommended!
If you have to deal with a minor injury in the backcountry, you may need to carry someone to help. If there’s at least two people to share the load and some basic equipment, here is a quick and easy way to rig a carry.
at least 2 rescuers
trekking poles, raft paddles, sturdy stick (or similar item)
padding (sleeping pad)
Note: this is for someone with minor injuries, such as a sprained ankle, twisted knee, altitude illness, dehydration, etc.
Check out the short (4:16) video for the method.