There is that awkward period between whatever posture you find them (sitting upright, hanging in straps upside down, shoved under dash board) and when you can get them onto a scoop or any board. The rescue boa looks like an interesting concept except that it ignores thoracolumbar concerns.
I keep hearing people (not Tigger) crying that the LSB is dead, long live the vacuum mattress; yet is is still the LSB used in extrication…which is exactly what, and only what, it was designed for.
That means, once you strip the hyperbole away, it's starting to make sense again! Only took forty +/- years.
Now, if they could only make a soft-topped LSB. And how about a KED with a vacuum headpiece or inflatable head block inserts?
And a drug to keep subjects from going crazy from being tied up like that!
PS: just as Grandfather Charles told me never to trust someone without calluses on his hands and Pappy Miles taught me to never sign a blank receipt (or trust a gun safety), I'll tell you to distrust any extrication device which is always demonstrated in daylight, with the pt sitting up behind the wheel, the car perfectly upright on solid ground, and the passenger cab undeformed. Show me the money: 2 AM, Sunday, and its raining, the car's 3/4 rolled in mud and the door's smashed down/jammed a couple inches.