Electronic tether to tether my father's rollator to him

My father lives independently but has poor mobility and dementia.  He frequently walks away from his rollator and then gets trapped when he realises he has left it elsewhere in his home.  A physical tether would be impractical and might actually increase his risk of falling.  I think he would benefit from an electronic tether that would sound an alarm whenever he moved more than, say, three feet from the rollator. There does not appear to be a commercially-available product to meet such a need. Giving him a passive RFID tag to wear and attaching a light-weight alarm to the rollator that polls the tag every few seconds might generate a workable solution, but I don't have sufficient experience with RFID to generate a solution in a reasonable time-scale.  I would probably favour CMOS timers and logic over a microcontroller for similar reasons. Does anyone have a project that could be adapted, or expertise that could be applied, to this task?

Topic by okthought   |  last reply


Walker/Rollator/KneeScooter type of DIY varieties for knee problem

Hi I am totally new here but have used the search so need your help. I have knee problems. But needs something other than a standard Walker/Rollator So I looked on youtube and google for kneescooters or rideons and Balance Bikes. The reason is that I need something to sit on. A KneeScooter is ideal for that kind of thing. Them are like a knew walker or knee rollator but one sit on them instead. So why don't I just buy the best of them and just love it :) Well them are on the wrong continent. I live in and are a native of Sweden which is Northern Europe in case you wonder. We don't know about such high tech over here. Sure we have same "assisted" Scooters like you have. Like sitting on a three or four wheel Motor Scooter but electric instead of Gasoline. Heavy things you can not take inside unless you buy the coolapsable that is rather neatly made. Anyway I don't really need motor assist I do have muscles so I can pedal a bike but bikes are not allowed inside the Mall and get stolen outside the Mall. Bikes are frown upon on the communal transport like Bus or Commuter Train and such. A Rollator or a Wheeled Walker is allowed everywhere so what I need is a KneeScooter that looks and behaves like a standard Wheeled Walker/Rollator but that one can sit on and ride like a Balance bike for kids. I can try to link to or upload drawings later how I have tried to envision what such would look like or function. So to conclude. It should appear to the Guards, Security Persons at the Mall like any standard Rollator. But then outside when them look away you touch a few buttons or something and it transforms into this handy BalanceBike but for grownups that allow me to push and kick myself striding or riding along but without pedals or motors. Dimensions maybe at most a yard = some 3 feet length and width maybe at most 2 feet and height adjustable for individual length of legs. So it should change between two positions or functions. Like a Rollator Wheeled Walker and then change to a Balance Bike or toddlers bike without pedals so it should be caster wheel as a Rollator but steerable front wheel as a Balance Bike.

Topic by kneeproblemguy   |  last reply


Help needed to upgrade wheels on walker for all-terrain ?

I've been trying to source a rim / hub  for my e-walker project , and so far havent been succesful  in finding the exact measurments I need  7.5 " wheel / 46 mm width with 9- 10mm bearing ( SEE BELOW ) http://www.mcmaster.com/#ball-and-rolle ... gs/=9i3dx1 The spacer inside the wheel based on my measurements is 2.7 mm in length and 13 mm in diameter ( outside ) Any way , it seems the best match I can find for hub , tire so far is one of those wheels used on those razor electric scooters  here  though I do not see any bore sizes for any of them, in spite of being told there are after emailing them that its up there ( you can see for yourelf if you like ) So instead, I did websearch on the model of the scooter that correlated with the sorta wheel specs that might work - like e100 razor  and found 8mm mentioned a few times , which I assumed might be the correct diameter of the axel / bore size i need. ( I have also asked on scooter forum to confirm this ) 8 mm however is too small to fit my own  knee walker mobility device , so I was wondering - to cut a long story short  - if there is any way I can enlarge the hole in the bearings that might be realtively easy i.e. without paying someone else ( assuming this could be done easily ) or having to buy a rim with a bigger bore and using some sort of hub ring to make u the difference ( perhaps a bad idea for hun motor ) Again , if any one has any suggestion they willing to share I'd be more than greateful for your ideas and badly needed advice  :) thanks once again. hele

Topic by hele   |  last reply


Balance Bike type of RideOn but for grown ups? NoPedals

You know all the kind of training bikes LikeABike and Strider RideOn so many different brands and varieties and naturally them are for the kids so young them have not learned to pedal and keep balance so these first "bikes" are for them to run along like on a "Hobby Horse" kind of thing that have the added safety of both feet on the ground when them need to gain balance again. Them sit and walk or run and seem to really enjoy it. Now suppose you are some 65 years older than these kids. You have the balance and can go by pedaled bike but them are not allowed to take on the Commuter Train or on the Bus that goes to the big Mall you want to visit and when you arrive no bike is allowed in so it get vandalized or stolen outside. But if you had a Walker or Rollator kind of mobility aid then that would be allowed. So what if one took a "Toddler" bike and made a grown up RideOne or BalanceBike for grown ups. No pedals on it. That would not get allowed either unless it has an electric motor and look like an expensive Mobility Scooter. So one need a Rollator that transforms into a RideOn. type of seated thing that can be used to move around on. I wish one could easily combine these two things but I fail to have enough innovation fantasy on how to accomplish this. So I test if kind people here get a clue or hang on how one could do such a thing. Transformer Bike/Rollator or what to name it. I have bought several Rollators and several KickBoard GoPed similar versions one are supposed to stand on or walk behind All of these are hurting the knee. So one need a seated thing. Sure it does exists already. The KneeScooter but that one have a seat that is too narrow so it hurts the butt. The customers complained so now one can buy an extra seat or saddle to it that is broader and less painful. But the KneeScooter does not look like a Rollator at all. It looks like a Scooter. A Rollator need Castering wheels in the front that seems a must. It can be a three wheel as long as the caster is the front wheel. Now if you sit on a four or three wheel thing and push of or kick off with feet on the ground then there is now way to steer the thing. so a transformer bike/rolator need to change from free wheeling caster to a steered caster to be safe. So that is the criteria and difference. In one position it looks like a real standard Rollator that you walk behind or in front off. Then after pushing the magig button it turns into the steerable seated balance bike kind of mobility RideOn for grown ups with knee problems. I have written about this in another post too so hope I am not breaching a hard hitting rule. Here I ask more what to name such a thing and how to make that thing so popular that the accumulated popularity makes the commercial companies aware of the need. If we can come up with a catchy name for such a thing then somebody maybe make one and test the market? On the other thread I ask for somebody to help me figure out how to DIY make one or to modify a standard Rollator so it can fill both functions. You would make me very happy if you come up with a catchy name for such a thing.

Topic by kneeproblemguy   |  last reply


E- walker idea ?

Hey All- I’m the new gal on the block - not round it , so I thought I'd skip proceedings and get to the main point why im here ( aside from the fact I like to learn more , meet people and of course take over the world ) The problem then , and it is big problem , is that I have disability and so Im looking at way I can get around better than I have been . One of these ideas of late has involved basically using something called a knee walker , which you can see here[url]http://www.phc-online.com/Knee_Walker_p/neebop-785.htm[/url] , and trying to adapt it so I have electrical asssitance / power for rought terrain , typical paths here and steeper hills. To add to this problem is the fact I know nill , not even the basics really ,of how I should go about this , other than other examples of what people have done and seem feasible . I don’t have have soldering kits, milling machines or any of that stuff for cutting adapting frames , and TBH would rather try to avoid if i can , simply because I dont want my knee walker too look much like a DIY job / unprofessional and therefore not the credible disability device it currently is. Speed is not issue , I guess 4mph is fine , though it would be nice to go a bit faster for more difficult ground I.e. even off road . The tires I think I can replace with moutainboard given their the same size , ( provided wheelbase checks out ) and the battery has to be ideally be lithium I.e. as opposed to lead. I don’t really mind whether its 2 or 4 wheel drive but figured ( because the axle is all sealed off on both sides ) a hub motor might be the only way of achieving this idea. Any way, that’s just about it , I still need to take the wheels off to confirm the wheel base but other than that , I cant think of much more to say. If any one has any suggestions then on how a complete beginner could make this idea a reality I’d really appreciate . Thanks a lot helena

Topic by hele   |  last reply