| Prosthetic Modifications |
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On August 21, 2021 Victor Walther Passed Away. As the website manager, I will do my best to keep this website active, in Victor's Memory.
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This page was created to provide information on prosthetic limb modifications for use in amputee mountain biking and cycling as well as other sports. Included on this page are modified prosthetic arms, prosthetic legs, and prosthetic devices.If you have modified an artificial arm, leg, or device, and would like to be included on this page, or if you would like more information on modifying artificial limbs for use in mountain biking or cycling, email your enquiries or pictures and information to: mtb-amputee@mtb-amputee.com
Prosthetic Arm Modifications for Bike Riding.Prosthetic Leg Modifications for Bike Riding.
Prosthetic Arm Modifications for Bike Riding. |
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The following two pictures show the first & second generation dedicated riding arm. The top arm depicts the first generation arm. Both designs feature "Seattle Mind" socket mounting adaptors. The adaptors are actually leg-knee components. The adaptor is attached to the upper socket with screws, then secured with epoxy glue. The upper sockets are simple clear plastic test socket material, that is properly fitted & moulded.Click On Picture To Enlarge.
The hook-terminal I prefer is a basic working all-purpose model made by Dorrance. You can easily adjust the grip strength by adding or subtracting elastic bands. (I prefer a death-grip) The hook-terminal attaches to a "Endo-skeletal Delryn Pylon" via a standard terminal adaptor. The adaptor must be inserted with glue into the pylon then secured with screws through the pylon wall.Click On Picture To Enlarge.
The second generation arm is a special "slip- socket" design that features two sockets, an outer & inner. The inner socket slides up & down to a maximum of 1/2 inch. This allows for more freedom of movement as well as protection & shock absorption via a tennis ball.Click On Picture To Enlarge.
Since there are no controls for this arm, all you need is a basic sturdy back harness. ( Double up the strap & use stainless steel rivets)Click On Picture To Enlarge.
You can see by this picture how the hook-terminal clamps on to the handle bar.Click On Picture To Enlarge.
0==0==0==0==0The following pictures feature a modified conventional prosthetic arm that was made by Bryan Mitchell of. B.D. Mitchell Prosthetic & Orthotic Services LTD. The modifications were made for both safety and comfort.Click on pictures to enlarge.
The arm features basic standard controls with only minor modifications which include a set screw at the base of the upper socket that secures the elbow turntable and prevents it from twisting or turning. Other modifications include a cable extension which allows you to rotate the hook without adversely affecting the control harness and an elbow control lockout device which allows you to lockout the elbow by simply detaching the control cable.0==0==0==0==0I would like to acknowledge and thank Bryan Mitchell of B.D. Mitchell Prosthetic & Orthotic Services Ltd.. Bryan developed my first riding-arm after I broke both of my regular prosthetic arms in my first dual-slalom race in 1993. In 1999, Bryan co-designed the second generation arm, along with a student / apprentice. For more information, Bryan can be contacted at: B.D. Mitchell Prosthetic & Orthotic Services Ltd., 1175 Duffern Crescent, Nanaimo BC, Canada, v9s 2b5. Phone: (250) 754-1442 or Fax: (250) 754-3300 or you can visit their website at: B.D. Mitchell Prosthetic & Orthotic Services LTD0==0==0==0==0The following custom arm & hand were built and designed by William Craig who is featured on the Arm Amputees page. The arm features a fox racing shox and a releasable grip.Click on photos to enlarge.
If you would like to see more prosthetic arm modifications visit William Craigs' website: www.prostheticarm.com0==0==0==0==0The following pictures were contributed by Bruce Chatwell who is featured on the Motorcycle Amputee page and has been an above left elbow amputee for over 36years. Bruce has logged thousands of miles on both his Harley Davidson motorcycle and his 600 Mountain Cat snowmobile, using the arm featured below.Click on photos to enlarge.
The pictures also show how Bruce operates the clutch by resting his arm on the bar and pulling the clutch backwards. For more information you can email Bruce at: bchatwell@collinscom.net or to see Bruces' right hand snowmobile brake modification visit the Snowmobile Amputee page.0==0==0==0==0The following pictures and information were contributed by Jon Rayeski. Here is what Jon has to say: I
am a recent graduate of the Savannah College of Art and Design’s
BFA Industrial Design program. I lost my right arm above the elbow
when I was 16 in a skiing accident and I am currently designing a
prosthetic for active amputees.
I included pictures of my current arm which is a body powered
carbon fiber unit with a hook that has done fairly well for me, I
have done things like kayak, rock climb, mountain bike and
motorcycle ride, oh and of course I still ski. I have a lot I would
like to improve on though. More specifically my efforts visually
will not be toward creating an arm that mimics life, I want people
to celebrate their diversity and think of their arm as a form of
self expression rather than a cosmetic blemish. I
am currently in my research phase and am looking for as much input
as possible from active amputees. I am planning on posting some
surveys and discussion pages online and if you're interested or just
want to give me some input, just send me an email and I'll keep you
posted. Thanks.
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