A startup company in Colorado wants to take the concept of the smart football helmet a step further by enabling it to pop open dozens of tiny airbags and cushion the blow of a hard hit to the head.
Concussion Mitigation Technologies LLC is proposing to equip future helmets with enough electronic intelligence to enable them to measure a hit, compare it to pre-determined criteria, and intelligently pressurize as many as 75 dime-sized airbags. Troy Fodemski, founder of the fledgling company, believes the patented technology will help professional and amateur sports deal with growing concerns about head injuries.
Airbags inside the helmet are pressurized sequentially, enabling the helmet to provide cushioning as the brain moves back and forth within the skull. (Source: Concussion Mitigation Technologies LLC)
"The human brain wasn't made to withstand 80 Gs in 15 milliseconds," Fodemski, an electrical engineer, told Design News. "If we want to compete in contact sports with a human brain, then we're going to have to use sophisticated data collection, modeling, and response techniques."
The company's football helmet, which hasn't yet been fully prototyped, will incorporate multiple strain gages, a small cartridge of carbon dioxide (CO2), scores of tiny airbags, a lithium battery, and a printed circuit board with a microprocessor, memory, and analog-to-digital converters. On the field, the helmet will use the strain gages to measure the impact of hit. Then it will send the data to the microprocessor, compare it to software models in memory, and pressurize the airbags with CO2 when necessary.
"When the player gets hit, the helmet will compare the data to numbers in a look-up table," Fodemski said. "It will say, 'The player has been hit in quadrant XYZ of his brain, and the brain will move 11 times.' Then it will fire off the airbags in sequence to respond to the movement of the brain."
The technology faces multiple hurdles -- cost, complexity, and practicality, to name just a few. Still, it comes at a time when professional and amateur sports are facing a growing body of knowledge suggesting that head injuries and concussions have long-term effects on the brain that haven't been fully understood up until now. As a result, NFL head-trauma lawsuits now number in the hundreds, and deaths of former stars, such as Junior Seau, Mike Webster, and Dave Duerson, are being viewed in the context of severe repeated concussions. The same has happened in the National Hockey League, where deaths of several notable former players in 2011 further heightened concerns.
Great link, jeffbiss. I think we're at the starting point of a long-term trend here. Ultimately, the supporting data will reach a point where it can't be ignored. It may take decades, but eventually we'll see some of these contact sports being dropped by high schools and colleges.
Jack: As you mentioned, I think the idea of those air cushions has been to make the helmet fit tighter around the head. Would they provide better cushioning against concussion than a helmet that selectively turns on certain air cushions in sequence? I wish I knew. It will be interesting to watch the development of this technology to see if it offers a substantial advantage.
Charles, I don't have any references here to back me up, but I do think that ther are helmets available that can be pumped up, although I'm not sure if this was as much of a cushioning thing or a design to improve the fit for an individual player. I seem to remember a nameless retired-unretired-retired... Packer having one of those a number of years ago.
It's nice to see someone working on this issue. Now whether or not this is a practical solution is another matter. We'll see how it evolves. I'm thinking this is akin in some ways to the automotive crash problem, for which the solution is more than just adding airbags. If you think about it, the car has a "cage" that encloses the passenger, restraint devices, collapsible zones to absorb the shock and airbags. Maybe a more comprehensive helmet design is called for that incorporates these concepts.
I may be wrong about this, William_K, but I believe there are helmets out there that use air as a cushion. I don't know if they can be pumped up, but I do know that basketball shoes have pneumatic bladders that can be pumped up by pressing on the shoe's tongue.
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