[HN Gopher] Student designs device that stops blood loss from st... ___________________________________________________________________ Student designs device that stops blood loss from stab wounds Author : sirteno Score : 17 points Date : 2021-07-05 19:41 UTC (3 hours ago) (HTM) web link (www.bbc.co.uk) (TXT) w3m dump (www.bbc.co.uk) | polishdude20 wrote: | Anyone got more info on this? It seems there's a balloon that is | inflated into the wound. It also talked about the benefit of not | pulling out the clot when the balloon is removed. Is it because | the material won't stick to blood clots? | JshWright wrote: | Yeah, the current technique (which, IMO, is still the way to | go) uses gauze, which the clot will form around. It's | difficult/impossible to remove that gauze without removing at | least some of the clot and causing some bleeding. At that point | though, they're already in the OR, and that bleeding is | generally fairly easily managed w/ the right equipment. | JshWright wrote: | This has some advantages over the existing technique (packing w/ | hemostatic z-fold gauze), but some big disadvantages. | | 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). | | 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. | polishdude20 wrote: | One possible fix is to not have a battery at all. Make it a | hand pump. | toomuchtodo wrote: | Is there not existing pressure onboard an ambulance from | oxygen supply? Or perhaps a compressor air line from the | suspension system? I do like the falling back to a hand pump | solution, similar to the bags used for providing artificial | respiration [1]. | | [1] https://en.wikipedia.org/wiki/Bag_valve_mask | ChrisGranger wrote: | I get a 404 error for this link. Here's one that's working for | me: https://www.bbc.com/news/uk-england-leicestershire-57692160 ___________________________________________________________________ (page generated 2021-07-05 23:00 UTC)