The 1940s inflatable anti-gravity suit kept fighter pilots from losing consciousness by preventing blood from pooling in their legs. That invention inspired medical anti-shock trousers used in the 1950s to 1970s to stabilize hemorrhagic shock patients by shifting blood from their legs to their core organs.
As a young medical officer in the Israel Defense Forces in the late 1970s, Dr. Noam Gavriely found several technical and logistical problems with anti-shock trousers: it took two people and a good few minutes to position them, and when they were removed the patient’s blood pressure took a dangerous dive.
Gavriely went on to become a serial medical-device inventor and emergency-care physician. His latest invention, HemaShock, accomplishes the same goal as anti-shock trousers but quickly and easily, without air pressure.
Introduced to the market in November last year at a price of $175 per set, the made-in-Israel device is an elastic silicone ring wrapped in stockinet fabric. It is rolled up the leg by one medic in about 30 seconds, without the need to remove the patient’s pants, and rolled off gradually to prevent a sudden drop in blood pressure.
For a patient in shock from loss of blood, HemaShock acts as an auto-transfusion device, redirecting blood from one or both legs – about a half liter per leg — to essential organs. -- More....
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The 1940s inflatable anti-gravity suit kept fighter pilots from losing consciousness by preventing blood from pooling in their legs. That invention inspired medical anti-shock trousers used in the 1950s to 1970s to stabilize hemorrhagic shock patients by shifting blood from their legs to their core organs.
