This has some advantages over the existing technique (packing w/ hemostatic z-fold gauze), but some big disadvantages.<p>It's a pretty bulky device, and space is at a premium on an ambulance. It also has a battery that needs to be maintained. I'm not sure a bulky device that needs routine maintenance (everything with a battery gets checked at least once a day in every ambulance service I've ever worked with) is worth carrying for very rare events. A couple packs of z-fold gauze take up as much room as a few decks of playing cards and would only need to get checked monthly (to see if they had expired).<p>Even in a place where stabbings are "common", this device is only useful in a specific subset of stabbings where wound packing can be used. If wound is in the torso/abdomen, this device isn't useful (there's nothing to press against), and if it's in a limb, a tourniquet is the right tool for the job.