Slashdot Mirror


$42,000 Prosthetic Hand Outperformed By $50 3D Printed Hand

An anonymous reader writes "A man named Jose Delgado was so used to using a $42,000 myoelectric prosthetic hand for the last year that he didn't realize that there were other options out there. Although Delgado, born without a left hand, was able to obtain the hand via his insurance, he found that a 3D printed 'Cyborg Beast,' an open source hand which costs just $50 to print, actually was more comfortable and performed better than the device which costs 840 times as much money."

9 of 288 comments (clear)

  1. and also reading machines for the blind by Anonymous Coward · · Score: 5, Interesting

    cutting down on the absurb prices for 'prosthetic' devices is great, but someone who is blind has to pay $1000-$2000 for a "Reading Machine" and that's not so great, especially since in the USA this is not covered by Medicare, howoever www.topocr.com has a $5.00 program that does the same job with a $60 scanner or a $95 document camera, I have to say that I'm a happy customer, I wish more people would develop low cost technology that provides an alternative to the big ticket items that "medical" companies charge, mainly to people who can't afford it.

  2. Sunk Costs by ObsessiveMathsFreak · · Score: 5, Interesting

    The additional $41,950 is allocated towards sunk costs including

    • - Cosmetic designs of a hand like-prosthetic to prevent adults staring uncomfortably and children exclaiming "cool"!
    • - Insurance/class action insurance for when the prosthetic ends up injuring/irritating one or more users or people, or things, or otherwise perishable or damageable entities the hand interacts with.
    • - Robustness to last through more than, say, 10,000 cycles before snapping into brittle plastic shards.
    • - Salaries and children's college funds for the scientists, designers, and MBAs running the prosthesis companies
    • - Salaries and children's college funds for the academic and medical researchers involved in prosthetic studies, both mechanical, psychological, and sociological

    Meanwhile, the 3D prosthetic hand has only the following sunk costs to cover.

    • - ~$10,000 investment in quality 3D printer
    • - The time taken find and to add the most saccharinly kitch music to 3D printing application videos on Youtube.

    It's important to remember to keep the background details out of perspective... or in perspective, depending on whichever context you'd prefer to hock.

    --
    May the Maths Be with you!
    1. Re:Sunk Costs by im_thatoneguy · · Score: 5, Insightful

      Well, not only that but most people don't know how to operate a 3D printer, nor how to customize the hand to fit the individual. So while the $42,000 hand includes the professional services involved with fitting the device, the 3D printed one depends on a charitable donation from the 3D printing operator to do the work. It won't be much but it's all probably going to be significantly higher ($400-$1,000) for the human being to operate and configure the 3D model for the individual.

      I bet there are only $100 worth of aluminum, gold, silicon and acrylic in the $42,000 hand too.

      This drives me crazy when people don't include the costs of labor. It would be like someone getting a car donated to them and saying "Wow cars only cost $200 for a title and registration! Why do people pay thousands of dollars for a car!?" Because someone gave you one for free!

      I work in film production. I have a $50k camera that I rent out. On most productions your total rental per day will be about $2,000 a day. Now you could say that you could shoot a TV commercial for "only $2,000 in rentals!" But that ignores the fact that cameras don't operate on their own, lights don't just place themselves, actors should be paid for their skills, assistant directors need to keep production on schedule, locations need to be paid for the rights to use their property etc. So yeah it "only costs $2,000" as long as you ignore the $20,000 per day in crew costs for a small production.

      People who say a film only costs $20,000 to make are either productions that somehow shot and finished in 1 day or else they're saying that their crew's time was worth nothing.

      If I spent $10,000 on a 3D printer. I couldn't just open the box and push the "Give me a 3D Prosthetic Hand" button. I would either need to spend a good week or so learning how to print ($100 an hour * 40 hours = $4,000) or else spend $1,000 on a professional to setup and configure the scene/hand for me specifically. /Rant.

    2. Re:Sunk Costs by Anonymous Coward · · Score: 5, Interesting

      I worked with a guy for years, though I only met with him every few weeks at most. Turns out he only had one arm the entire time I knew him, but it was a long time before I realized it, and I wasn't sure about that for quite a few meetings since his prosthetic was so good. Someone later just happened to mention that he'd lost it in a traffic accident years before.

      Being initially inconspicuous might matter to some people.

      If I lost a hand I'd definitely go for the robot look though.

    3. Re:Sunk Costs by CodeBuster · · Score: 5, Informative

      To be fair, some of these costs would exist in any business. There are always capital equipment costs, employee costs, administration costs and in some cases research and development costs. However, you are on the right track with your criticism of artificially high medical device costs. Indeed, these high costs can be seen not just in prosthetic hands or limbs but also in more mundane devices such as hearing aids and prescription eyeglasses. In my estimation there are two main reasons for this:

      First, the devices are sold through specialized middlemen who bill your insurance company which in turn bills you and perhaps your employer for premiums. This is the classic third party payer problem that exists throughout the healthcare industry here in the United States and is in no small part responsible for the high costs which are ultimately borne by the consumer in the form of higher premiums and higher out of pocket costs.

      Second, and related to the first point, the market for FDA approved medical devices here in the United States is highly regulated and therefore high cost. There is a great deal of regulatory rigmarole and ceremony required to bring a product to market. This imposes costs of course, but it also results in delays while the product winds it's way through the circuitous approval processes. By the time something is approved for sale as a medical device it's not only expensive but often obsolete or at least several generations behind the state of the art technology.

      Finally, it ought to be remembered that medical devices are now assessed an additional tax under Obamacare, on top of any previous expenses. It's hard to see how this will lower costs, especially for those who find themselves in need of a medical device. Although, I suppose that "reform" is in the eye, or the hand in this case, of the beholder.

  3. A different beast by Sarten-X · · Score: 5, Informative

    I'm no expert in prothetics, but it seems the printed Cyborg Beast hand is a completely passive device, relying on wrist movements to control the fingers. On the other hand, the $42,000 device was a "myoelectric prosthetic device, which took signals from the muscle fibers in his forearm, translated those signal, and then used them to mechanically move the fingers of the prosthetic, which looks pretty close to an actual hand."

    This guy prefers the less-realistic device. Good for him. A direct comparison is somewhat unreasonable, though.

    --
    You do not have a moral or legal right to do absolutely anything you want.
  4. Re:More money does not always buy better things. by turbidostato · · Score: 5, Insightful

    "A $30 aeropress coffee maker is as good as a $5000 espresso machine"

    Haven't tested a $5000 one so I can't say. I tested espresso machines at any bar at, say, Venetia, and I can attest that no, your $30 aeropress coffe maker is no challenge for them.

    "A double edge safety shaver that uses 20 cent blades is far superior to any expensive disposable shaver system, even the ones with 5 blades."

    I use them and I agree.

    "A $150 Formica counter top fulfills all the duties of a $3000 granite counter top."

    The $150 Formica counter top at my rented flat and my mother's 30-year-old granite one beg to differ.

    "And yet we are constantly told by marketing and advertising that better equals more expensive."

    Yes, marketing (publishing, to better say) is quite clever in using bad rationals to push sells.

    Better equals more expensive and that's right more times than not. The point is that more expensive doesn't equate better (see? even you fall on bad rationale).

  5. I make prosthetics for a living. by joeshmoo · · Score: 5, Interesting

    I am a prosthetist, and I regularly fit and bill for these devices as a result. Sure it sounds great that this particular patient can get a hand made for $50, but it’s not a fair comparison and doesn’t necessarily apply for every amputee. Also, as several others have pointed out, that does not take into account the labor or other overhead costs. (Cost estimates that follow are just some ballpark figures)

    First off, the patient has part of his hand, and has opposition capabilities at his wrist. If his amputation level was directly through the wrist, or higher, the 3D-printed hand would need a harness or some other element to provide the body power. He’s also lucky enough that he can get away without having an extensive socket to suspend the 3D printed hand on his arm as a result.

    Based on the myoelectric prosthesis shown, the $42,000 cost is likely “Usual and Customary” cost. At a contracted rate with insurance on a device like this, you’re probably best case looking at about $16,000 actually being billed to the insurance company. Looks like a Sensorhand Speed (or similar) hand being used, which has a parts cost upwards of $4000 from the manufacturer. The electrodes, battery unit, and custom made socket probably cost an additional $3000 in parts. The billed amount to the insurance company includes the prosthetist’s evaluation, casting, manufacturing, fitting, and subsequent follow-up and adjustment appointments for 6 months.

    All that said, the patient probably shouldn’t have been fit with the system shown; most of the benefits he’s stating (such as holding a box at work) are more related to him having a proper limb length with the 3D printed hand! The myoelectric prosthesis shown has thrown off the alignment of the hands for performing bimanual tasks, placing his prosthetic hand way further from his elbow than his sound side hand. He would probably benefit from an M-finger prosthesis which would probably have only run about $5,000 to the insurance company, even being custom made to match the patient. Probably $1500 in parts.

    .... but if they said a $1500 prosthetic hand was outperformed by $50 3D printed hand, people wouldn’t get as hyped up.

  6. Re:Obamacare exists because... by NoKaOi · · Score: 5, Insightful

    Obamacare exists because the poor can't be bothered to pay $90 for a doctors visit...losers that don't pay

    Can't be bothered? If you have a medical issue that requires several $90 office visits, and the choice is between paying that or feeding your family (or possibly buying gas to get to your minimum wage job so you don't lose it), how is that "can't be bothered?" Oh, and then you call them losers. So which is it, they can afford to pay but can't be bothered, or they are losers who would rather sit on the sidewalk than get a job? It seems you only see those two options, which pretty much means you are completely unfamiliar, yet pass judgement on a part of our society that comprises a pretty significant portion of the US population.