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Artificial Leg for an Active Engineer

12/22/2008 8:37 PM

i am looking for a replacment leg,,

Am above knee amputee, very active,, i am destroying my prothetic leg in the work i do, Farmer, Aircraft engineer, mechanic, builder.

I do a lot of horse work, riding,

any ideas on knee design, Socket,

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#1

Re: home made leg

12/22/2008 9:45 PM

I am impressed. You appear much more active than most people I know who have nothing like your condition.

As you consider a solution, begin by asking if you really need a knee? Can you swing a stiffened leg without much loss of function? The reason I ask is that it is the complicated joints and such that would tend to wear out. If you would rather not advertise your situation with a swing-leg stride, then perhaps you need the knee.

The next consideration, especially if you decide to try a rigid prosthesis, is some sort of shock absorbing system.

Do you need a single design, or are you willing to consider multiple devices, to be used for different activities? I suspect that the requirements are quite different when riding a horse, as opposed to, say, driving a tractor. When considering commercial devices, multiple styles may not be feasible, but if you are serious about fabricating your own, then there may be some advantages to interchangeable styles to suit various activities.

If you, for some reason, require an articulate limb (and I suspect horseback riding is a lot easier with an articulated limb), then you need to consider the special requirements of the device. I suspect that horseback riding is a significant factor in the wear on your commercial limb, since most devices would not be designed considering the side loading and abrasion encountered in that activity.

I am not an expert in this area, but I am impressed with your spirit, and would like to offer any assistance I can. Send me a private message, if you think you would be interested in my limited contributions.

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#21
In reply to #1

Re: home made leg

12/24/2008 12:06 PM

there has to be some mobility/movement on the prosthesis, if he's riding.

If your not sitting square in the saddle, other parts of your body will grind down to make up for the lack of movement. Such as your back.

But you did give good advice for him to ask himself. For and active person, and having the background he can come up with points that he needs. such as degree of mobility, and move on to the basic mechanisms and restraints.

If the op could share this, I'm sure there will be more ideas thrown around.

phoenix911

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#2

Re: Artificial Leg for an Active Engineer

12/23/2008 11:49 PM

Hi...please try the Jaipur Leg. This organosation holds camps outside India as well to help persons.

The Jaipur leg is a rubber-based prosthetic leg for people with below-knee amputations, produced under guidance of Dr. P. K . Sethi by Masterji Ram Chander in 1969 for victims of landmine explosions. Designed in, and named for Jaipur, India; the prosthetic leg was designed to be inexpensive, quick to fit and manufacture, and to be water-resistant. The jaipur foot is fitted free of cost by Bhagwan Mahavir Viklang Sahyata Samiti, founded by Devendra Raj Mehta. It costs approximately U.S. $40. Dow India supports Bhagwan Mahavir Viklang Sahayta Samiti with polyurethene which is the new material used in the production of the prostheses. The new material increases the durability and the convenience of the leg. Dow India also supports BMVSS with financial assistance to carry on the work done by the non government organization.

SHOULD YOU REQUIRE ANY FURTHER INFORMATION? PLEASE DO NOT HESITATE TO CONTACT them at !

MR. D.R. MEHTA

FOUNDER & CHIEF PATRON

BHAGWAN MAHAVEER VIKLANG SAHAYATA SAMITI
S.M.S HOSPITAL CAMPUS
JAIPUR - 302004, INDIA.
TEL. NO. : 0091-141-2563063/2568661
FAX NO. : 0091-141-2568602
E-MAIL :

bmvssjpr@datainfosys.net

bmvssjpr@jaipurfoot.org

or visit thier web site www.jaipurfoot.org

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#27
In reply to #2

Re: Artificial Leg for an Active Engineer

12/25/2008 6:00 AM

Yes, this is right place to fix artificial limbs. They have fixed many limbs in past for Army soldiers and civilians. Their charges are also very reasonable.

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#3

Re: Artificial Leg for an Active Engineer

12/24/2008 2:23 AM

Helimech

I have been a BK amputee for the last 22 years and have recently gotten an Ossur Rheo knee. It has changed my life in terms of what it is capqable of. Please refer to their website

http://www.ossur.com/?pageid=2743

Please contack me on kobus@andula.co.za if you need more information.

Good luck

Kobus Thiart

South Africa

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#4

Re: Artificial Leg for an Active Engineer

12/24/2008 4:42 AM

I recently saw an interview with a guy who, like you, was very sporty. He had a selection of legs tuned to his different activities, one for cycling, one for running etc. Should you be thinking along those lines instead of trying to find one general purpose device which will have to be a compromise?

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#5

Re: Artificial Leg for an Active Engineer

12/24/2008 6:12 AM

I'd suggest an exchangeable knee socket....something that pops off from say, the upper fitting, and has utilitarian uses depending on the environment where your leg finds itself.

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#7
In reply to #5

Re: Artificial Leg for an Active Engineer

12/24/2008 8:11 AM

"depending on the environment where your leg finds itself"

Do you think he has a problem with them running off on their own?

Sorry couldn't resist.

Merry Christmas!

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#9
In reply to #7

Re: Artificial Leg for an Active Engineer

12/24/2008 8:42 AM

ROTFL!!! My first thought too, ya beat me to it fair and square tho'... Note I am temporarily relocated to Alabama, expect to be back in Tulsa by end of summer. Naturally, actual results may vary.

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#10
In reply to #7

Re: Artificial Leg for an Active Engineer

12/24/2008 8:43 AM

Obviously the product of corrupted minds here.

But, Jeez, I dunno, depends on whose dentures are chasing after them I'd guess...........which brings to mind a disturbing thought.......what do morticians do with all the replacement hip and knee parts? Aftermarket? Could be a good source for a do-it-yourselfer..............?

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#12
In reply to #10

Re: Artificial Leg for an Active Engineer

12/24/2008 8:57 AM

Hmmmmmm could be a ludacris investment opportunity here.

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#6

Re: Artificial Leg for an Active Engineer

12/24/2008 6:31 AM

Try this site.

http://www.ossur.com/

Simply the best .

Best wishes, Skafi.

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#8

Re: Artificial Leg for an Active Engineer

12/24/2008 8:22 AM

Try striker med product. The same joint for knee replacement should work for you if you can buy it as a piece part.

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#11

Re: Artificial Leg for an Active Engineer

12/24/2008 8:48 AM

I am admittedly not an expert, but I was reminded of the recent Olympics:

"Oscar Pistorius, a double-amputee sprinter, has been denied a shot at the Olympics... for being too fast. The runner -- who uses carbon-fiber, prosthetic feet -- was reviewed by the International Association of Athletics Federations (or IAAF), a review which found the combination of man and machine to be too much for its purely human competitors. According to the IAAF report, the "mechanical advantage of the blade in relation to the healthy ankle joint of an able bodied athlete is higher than 30-percent." Additionally, Pistorius uses 25-percent less energy than average runners due to the artificial limbs, therefore giving him an unfair advantage on the track."

I don't know much about this "blade" limb, but it ought to be worth considering at least.

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#16
In reply to #11

Re: Artificial Leg for an Active Engineer

12/24/2008 9:59 AM

It's like Rorschach said.....the guy was born without lower limbs. Amputees who've had to get used to the stump not hurting, proper fitting, phantom pains and I imagine a lengthy list of complications face quite another dilemna.

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#20
In reply to #11

Re: Artificial Leg for an Active Engineer

12/24/2008 12:06 PM

Look for it at this site: http://www.ossur.com/

Ossur is the manufacturer of these artificial limbs.

Skafi.

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Anonymous Poster
#13

Re: Artificial Leg for an Active Engineer

12/24/2008 9:04 AM

Applied Composite Technology (ACT) in Gunnison Utah, the medical device branch of Christensen Arms has some very good products that I think will work very well for you. appliedcompositetechnology

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#14

Re: Artificial Leg for an Active Engineer

12/24/2008 9:26 AM

If you were in the states I would suggest that you see my cousin Dennis Clark. He has been designing prosthetics's his whole life. His father had a small traveling practice in Iowa. I'm sure he would be more the happy to help you with any suggestions that he might have if you were to contact him. His web site is http://www.clarkprosthetics.com/staff.asp.

You can tell him that David Steward suggested you contact him. I'm sure he can help you find what you need to maintain your active life style.

Good luck

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#15

Re: Artificial Leg for an Active Engineer

12/24/2008 9:30 AM

I've heard very good things about Otto Bock's C-leg. Not being an amputee myself, I really can't comment from first hand (or leg) experience but I am led to believe it is the standard by which all other prosthetics are compared to. I've seen people playing sports like basketball with them. They are designed with accelerometers, servos and microprocessors to minimize lost motion in your gait and to maintain balance. The upshot is that you don't feel like you've been running a marathon when you take them off at the end of the day. These are the prosthetics that the VA supplies to wounded soldiers returning from Iraq and Afghanistan.

On the subject of Pisstorus the sprinter. His carbon fiber prosthetics are specifically designed for running and would not serve as every day prosthetics. He uses C-legs the rest of the time I believe. Technically he is not an amputee, he was born without lower legs. So while he is functionally an AK amputee, he does not have the scar tissue from actual amputation.

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#17

Re: Artificial Leg for an Active Engineer

12/24/2008 10:09 AM

I am functionally deaf after being hearing most of my life and can sympathize with you on the loss of a bodily function. Sounds like you have your head screwed on straight with a right hand thread and are approaching the "fact" with the right attitude.

If I were in your shoes and wanted to think outside the box (I have no idea what in the box is, may become apparent.) I would think in terms of titanium as the material and would definitely include a knee and would include some sort of a lock out device, maybe activated by a shoulder shrug. Might help when you clean and jerk your body weight.

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#18
In reply to #17

Re: Artificial Leg for an Active Engineer

12/24/2008 10:35 AM

I too recently lost most of the hearing in one ear due to Sensorineural hearing loss.

It has been a bit of an adjustment.

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#19
In reply to #18

Re: Artificial Leg for an Active Engineer

12/24/2008 12:05 PM

I lost the use of one ear about 50 years ago and the other started going within the last 10 years. I got to the point that the left ear was completely useless and the other ear without a hearing aid was profoundly deaf, the same ear with a hearing aid designed for pure volume increase, netted a comprehension level of about 30% of the words spoken to me.

I had the cochlear implant in the "bad" ear about 3 months ago and am in the learning phase of the procedure. It is getting better but I still read lips for the majority of my conversations. They seem to think that in about six months this thing should be as fully functional as it is going to be.

If you have a profound loss in the bad ear, look into the cochlear at the first sign of problems with the good ear. The longer your brain goes without using the hearing nerve the more it will lose overall. I personally haven't heard what you call music for the past 4 or 5 years and to say I miss it would be a huge understatement.

To anyone listening use the best hearing protection you can get, and use it consistently.

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#23
In reply to #19

Re: Artificial Leg for an Active Engineer

12/24/2008 12:13 PM

Mine loss was sudden and total. I sneezed, my right ear popped, and then nothing but ringing. Audiologist could not tell if what little I was hearing was bone conduction from the other side or not it was so far down in the mud. They did an MRI and couldn't find anything wrong. They treated me with steroids for a couple weeks and at this point it has come back to about 50db or so, but only in certain frequency bands. the notches in my hearing coincide with female voices particularly. Makes my wife think I'm intentionally ignoring her.

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#24
In reply to #23

Re: Artificial Leg for an Active Engineer

12/24/2008 12:18 PM

Makes my wife think I'm intentionally ignoring her.

Thats a given!

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#22

Re: Artificial Leg for an Active Engineer

12/24/2008 12:11 PM

The 1st thing I'd try is the VA (Veteran's Administration) and / or the Walter Reed Army Medical Center for info and up-to-date availability and contacts of prothetic legs. They should be the most up-to-date.

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#25
In reply to #22

Re: Artificial Leg for an Active Engineer

12/24/2008 12:24 PM

A couple problems there mate.

First he's in Austrailia, not the USA. Second he didn't say that he was injured in war. He could have lost his leg to a farm implement or a car wreck or something like that. Or it could have been amputated due to bone cancer or gangrene too. He didn't say HOW he lost his leg.

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#26

Re: Artificial Leg for an Active Engineer

12/24/2008 2:34 PM

The following link is a newspaper article featuring an employee at our minesite who recently received an artificial C-leg (as mentioned in the previous forum posts by Rorschach).

http://www.mjtimes.sk.ca/index.cfm?sid=56929&sc=15

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#28

Re: Artificial Leg for an Active Engineer

01/01/2009 3:23 AM

Yes;I really appreciate your spirit and ready to help.Recently in Sri Lanka A young inventor created a very promising artifial leg and started a factory with the government assistance without giving away the design/patent for huge money.

I will find the contact detail and tell you ASAP.

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#30
In reply to #28

Re: Artificial Leg for an Active Engineer

01/05/2009 9:31 AM

It's great news that he didn't cave in for "instant riches". Long-term profitability and recognition may be a better deal for him. Also good news that the government provided assistance. All too often such agencies do not support the "little guys" sufficiently. Hope all benefit from this!

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#29

Re: Artificial Leg for an Active Engineer

01/03/2009 8:32 AM

Could you give more input about your actual prothetic leg? Indicate where the weak zones are and what kind of wear you noticed? Analysing the actual situation which was conceived for other loads and frequencies of loading different from what you apply upon it could be possible to give you solutions for a better behaviour and a longer life.

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#31

Re: Artificial Leg for an Active Engineer

04/16/2009 10:50 PM

I lost my leg in Iraq, nothing compares to the C-leg!!

For snowboarding I use the XT-9.

I tried a Rheo but kept falling down the stairs... if you don't use a C-leg first you might not have problems with the Rheo, but I'm going back to the C-leg now that I have approval from the VA.

I am VERY active with my AK amputation, on my feet all the time. Not sure how things would go on horseback though, haven't tried it.

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#32

Re: Artificial Leg for an Active Engineer

05/26/2009 3:47 PM

Just came across your request. I have a artificial leg for sale. I don't have a asking price. It was made for an above the knee amputee, he was about 5'6", not sure if this would work for you, or if you're interested in purchasing a used prosthetic leg. If so I can send a pic, oh, He never used it because his leg was cut too far.

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