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Old September 23rd, 2013   #1
railroadrider
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Default Custom polystyrene foam liners

Does anybody out there know of a company, or simply a way, to get a custom poured/molded helmet liner? My wife has a medical device implanted in her head that precludes the use of a "normal" helmet liner. When I was in the USAF flight crew members would get their helmet core personally molded as they wore the helmets for such lengthy periods. I've hunted, in vain, off and on for several years but have either not figured out how to ask the right question on internet search engines or the product doesn't exist.
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Old September 23rd, 2013   #2
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Default Re: Custom polystyrene foam liners

I haven't heard of anything like that but, I haven't looked either.
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Old September 23rd, 2013   #3
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Default Re: Custom polystyrene foam liners

Ask the helmet manufacturers. This problem or ones similar to it must come up from time to time. Perhaps they have experience with it.
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Old September 23rd, 2013   #4
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Default Re: Custom polystyrene foam liners

Does she have a shunt? In my job I design shunts. With respect to the helmet liner, I would not try to make one yourself. Manufacturers carefully control the density of their foam to absorb specific amounts of energy.

Rather than make a new helmet liner I would be more inclined to press out a pocket for the device in the OEM foam. I've seen this done with the back of a spoon. Having said that, you will compromise the energy absorbing properties of the foam in that one area, but at least the rest of the carefully engineered foam will be undisturbed.
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Old September 23rd, 2013   #5
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Default Re: Custom polystyrene foam liners

Sorry I have no relevant response to your question but surmise it is so terrifically expensive to mold a personal EPS liner no one except a US taxpayer would pay for one.
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Old September 23rd, 2013   #6
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Default Re: Custom polystyrene foam liners

Quote:
Originally Posted by Wjbertrand View Post
Does she have a shunt? In my job I design shunts. With respect to the helmet liner, I would not try to make one yourself. Manufacturers carefully control the density of their foam to absorb specific amounts of energy.

Rather than make a new helmet liner I would be more inclined to press out a pocket for the device in the OEM foam. I've seen this done with the back of a spoon. Having said that, you will compromise the energy absorbing properties of the foam in that one area, but at least the rest of the carefully engineered foam will be undisturbed.
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It's actually called an Omaya(sp?) reservoir. It was put in for delivery of chemo to her spinal fluid without having to constantly puncture her spine. She's been resigned/satisfied to not ride with me for the last 29 years and now has decided she'd like to at least go for short hops.

I tried cutting the foam out, figuring it wouldn't do any more harm than compressing it. Didn't work out so well. Anything we do is going to compromise the helmet but the alternative is to not wear one. Even though we can do that here it's not a viable alternative for us.

Last edited by railroadrider; September 23rd, 2013 at 03:52 PM. Reason: left word out
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Old September 23rd, 2013   #7
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Default Re: Custom polystyrene foam liners

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Originally Posted by railroadrider View Post
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It's actually called an Omaya(sp?) reservoir. It was put in for delivery of chemo to her spinal fluid without having to constantly puncture her spine. She's been resigned/satisfied to not ride with me for the last 29 years and now has decided she'd like to at least go for short hops.

I tried cutting the foam out, figuring it wouldn't do any more harm than compressing it. Didn't work out so well. Anything we do is going to compromise the helmet but the alternative is to not wear one. Even though we can do that here it's not a viable alternative for us.
Ok, yes we make "Omaya" reservoirs here too, wonder if it's one of ours (Medtronic)?
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Old September 23rd, 2013   #8
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Default Re: Custom polystyrene foam liners

My friend David had what we were told was the first shunt ever implanted in 1967 for water on the brain. He had seven operations on his skull and neck to do it. Because my parents were operating nurses I was allowed to see him in the hospital.

The surgeons name was Mason. The hospital was in Schnectady NY.

A couple of years ago he had water leaking out of his ear. The doctor tested the shunt for the first time since it was implanted. It worked fine.
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Last edited by echo; September 24th, 2013 at 05:23 AM.
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Old September 23rd, 2013   #9
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Default Re: Custom polystyrene foam liners

Quote:
Originally Posted by Wjbertrand View Post
Ok, yes we make "Omaya" reservoirs here too, wonder if it's one of ours (Medtronic)?
Do you make Adapta DRs there Jeff?
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Old September 23rd, 2013   #10
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Default Re: Custom polystyrene foam liners

Just a thought- a larger than normal helmet , then with additional padding added to suit.
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