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Ratanjit
 Newbie

Joined: 07 May 2007 Posts: 6
Location: Bangalore
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Dear friends,
We as a company woudl like to come out with products that enable improved accessibility
We are already almost done on designing a Stair lift for wheelchairs & Chiar lift and hope to laucnh it in 3-4 week's time
We have Patient transfering device ( design over - detiling pending) and a UNIQUE wheelchair also in pipeline
However in all this, we think it is important to get feedback from potential users about WHAT THEIR ACTUAL NEEDS ARE and WHICH NEEDS ARE MORE IMPORTANT TO RESOLVE
I hope those in this forum can help guide us to do a good job !
Let us know of all the kinds of problems you face in accessibility and thier priorities and we shall see how well we can help change the situation
Please use this forum for discussion. Your inputs may not give immediate results but help us focus more properly for what we come out with in near future.
Thanks and regards,
RATANJIT
www.uttejna.com
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Vic
 Member of Standing

Joined: 12 Apr 2007 Posts: 239
Location: New Delhi
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Hello Ratanjit,
I have a couple of questions for you
1. | Quote: | | We are already almost done on designing a Stair lift for wheelchairs & Chiar lift |
Do you mean a platform lift or is this a stair lift ?
If its a platform lift, I will like to know the platform dimentions as that will have an impact on how inclusive this is.
2. | Quote: | | UNIQUE wheelchair also in pipeline |
Again with this too, I will like to know the (unoccupied) dimensions and dynamic measurements that you are designing this to & then we may be able to guide you to the accessibility problems that you are likely to face with this.
_________________ Vikas
AccessAbility
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Unnimaxx
 Senior Member

Joined: 07 Jun 2007 Posts: 455
Location: Kerala
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Hi, its nice to hear about new experiments in the field.
I'd like to know what u've done to prevent the so called preassure sore? one of the main thing I'm haviong is this, where I cant sit for long... even if using a cussion, its hard, so is there any suggestion?
regards
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Shree
 Young Member
Joined: 20 May 2007 Posts: 26
Location: Hyderabad
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Ratanjitji,
I salute you on this endeavor!
This forum is the best place to get useful inputs for your creative efforts.
Do you think it would be possible to make a wheelchair-
the usual light weight/compact/foldable-with a mechanism
that would easily raise it to a few inches?
From my personal experience I would say that one of the major hindrances
I face is the height of car seats.
Now most of the cars are coming with added height.
The only car I can get in and out by myself is Maruti 800,
which I have at home.
But once I go out of station I have a big problem as I need
a second person's help to scramble in and out of any other car.
Moreover the car's boot space has to be big enough to accommodate
my folding wheel chair.
If there is a height adjustable wheel chair it would
make our lives much much more easier-not only for the cars,
but another 101 places where we have a height problem.
Thanks a lot for your queries and all the best wishes!
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Ratanjit
 Newbie

Joined: 07 May 2007 Posts: 6
Location: Bangalore
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Dear Friends
FIrst of all apologies for a late response since I could not get online for some time
1) First in response to Shri Vikas questions
- We have planned both stair lift and wheelchair lift with modular design so that with lesser inventory we can meet both the requirements
1a) Apart from a host of features, the unique features we have designed are :
+ Most US made stair lift have foot rests at a height of 6-8 inches, which means it is still difficult for a person with joint pains to mount in. Further those that do come lower need that (i) the railing extend out of the stair area by 8-10 inches more so that seat can mov elow enough or (ii) The railing curves perpendicular to the chair and the chair turns and comes lower for access.
+ Both of these (i)need much more space and (ii)may create a hazard for othe users who walk across the area who may trip on rail. Probably US buildings have th e luzury of space but we MAY not.
So the unique feature we added is : The chair is close to the stairs and first it moves vertically up/down by 6-8 inches so that a person can easily seat himself/herself and fottrest is on ground level so no special effort needed. ONCE the person is seatd on chair, the chiar first lifts vertically by 6 inches and then moves up the rail. This way rail protusion from STAIRS is minimum and no area for CURVING THE RAIL OUT to lower the chair is needed.
1b) Even for wheelchair lifts thsi INITIAL lift feature means lesser space taken
MY CONCERN IS would it be more frightening to get vertically lifted first by 6 inches ?? We have SOFT START and SOFT STOP (means no jerky motions) but can anything else go wrong with this?
1c) ANOTHER unique feature we have on line is a Special stair/Wheelchair lift that needs NO DRILLING OF HOLES on walls or no grouting points on your stairs ! This is a DRILL FREE lift which can be installed in rented premises where owners would not allow MAKING MESSY HOLES IN THE WALL ! Also this maybe useful for conventions/Kalyana Mandapams etc. and if a disabled peron is getting married or so or some convention and there are no good accessilbe halls at cheap rates, some company can offer this as a leased temporary installation for the occasion.
1c) Other features we have are listed below:
- The total setup would take 9 inches away from width of your stairs.
- Machine will have ANTI COLLISION mechanisms so that if an excited pet animal or an ignorant grand child fools around and get their foot stuck, the machine will stop
- FIRE ESCAPE SAFETY PROVISION: This can be provided on request. This means if building is on fire and the concerned person is on first floor and cannot come down as wires/electricity have failed, then the chair will slide down without power and allow evacuation. However if you arein the basement and exit is in ground floor then this would obviosuly not work.
- FAILURE BRAKES SAFETY MECHNISM : In case anything fails - the chair will not have a free fall as special brakes shall prevent and lock it. Hence back up saftey feature is provided to brake a freefall. This is only for safety and does not imply that design intent is to fail :-)
ARE WE MISSING ANYTHING HERE ? ARE WE PROVIDING SOMETHING WHICH MIGHT BE ACTUALLY CUMBERSOME AND NOT HELPFUL? ( though we imagine it to be so). WHAT ELSE CAN WE DO ??
Thanks and regards,
RATANJIT SINGH SOHAL
_________________ Ratanjit Sohal
UTTEJNA TECHNOLOGIES
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Ratanjit
 Newbie

Joined: 07 May 2007 Posts: 6
Location: Bangalore
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Dear Sir
Sorry we do not have the expertise to solve problems on the front of pressure sores. We have researched several products available in US and other countries that have seemingly been proven to be effective, but right now we have not focused on designing some because of lack of resources as well as expertise.
However the requirement is noted and we will focus on this soon.
_________________ Ratanjit Sohal
UTTEJNA TECHNOLOGIES
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Ratanjit
 Newbie

Joined: 07 May 2007 Posts: 6
Location: Bangalore
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Dear Mr Shree
This wheelchair design we had is probably too "fancy"and ambitious and we want to tone it down.
It achieves varibale height for person who is paraplegic - i.e. he or she can reach down to pick a pencil and also go upto 65-70% of his/her natural height to remove, say a box of cookies kept in a higher cupboard in the kitchen.
A Quadraplegic may also probably use it but we are not yet sure the effect the design will have on skin of quadraplegic as it is relatively harsh on skin when reaching up/down.
Also it allows self transfer into Beds and sofas which have minimum 150 mm clearence below them
Now CARS come with more than 160mm clearence so theoretically it shodl be feasible to do a car transfer too BUT we have nto measured DORR WIDTHS of standard cars to ensure it would go in. WE WILL NOTE THIS AS AN ACTION ITEM on our end.
Also we have BIGGER WHEELS in front because for transfer, bigger wheels could not be at the back ! ADVANTAGE is better obstacle tackling capabilities which are not possible with current wheelchairs. One of my friend pushed me at fast speed over a 15mm obstacle and the wheelchair I used for experiments toppled ! So bigger wheels in front will mean better obstacle tackling
HOWEVER WE HAVE NOT FIGURED OUT HOW THE CHAIR WILL BE DRIVEN AS YET :-( We have some mechnisms in mind but then - such things are good for fancy experiments and Technology show off but maynot be good for practical day to day use.
We are stuck here right now and plan to resolve issues in this design only after closing the STAIR LIFT product which is more close to practical reality.
As mentioned earlier we are still a small company but hope to do well by growing in this sector. SO it will be a while before we can post details of this chair on web. Also we would like to cover osme patent issues before we publicize it.
rgds,
RATANJIT SINGH SOHAL
_________________ Ratanjit Sohal
UTTEJNA TECHNOLOGIES
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Shree
 Young Member
Joined: 20 May 2007 Posts: 26
Location: Hyderabad
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Thanks Ratanjitji for the details.
Reading your devoted endeavor,make me hopeful of some final design evolving before long.
Yes,the width of the door of a car is also restrictive many times.
Thanks for pointing it out.
To think of a simple mechanism,if I don't sound ridiculous,
could there be a mechanism like that of a car Jacky
to raise the wheel chair a few inches?
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Ratanjit
 Newbie

Joined: 07 May 2007 Posts: 6
Location: Bangalore
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Yes - if were to do a wheelchair which only achieves avariable height then a simple jack with scissor mechnism will do no doubt.
Let me work this out - I woudl prefer if we could do that in the current design of ours since it is more multi purpose and generic for wider needs.
Will get back to you soon.
_________________ Ratanjit Sohal
UTTEJNA TECHNOLOGIES
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Shree
 Young Member
Joined: 20 May 2007 Posts: 26
Location: Hyderabad
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Ratanjitji,
Sorry for responding late to that very encouraging reply.
If that jack could ever become a reality it would open up
a hundred and one more possibilities for the disabled traveler.
Would it be greedy to make one more request before you give final shape
to that dream Jack?
Please see if it could be collapsed to the minimum size so that
one can accomodate it in the boot space of the car,along with the
folding wheel chair.
With Regards and Prayers,
Shree
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Nickdorson  Warnings : 2
 Newbie
Joined: 22 Dec 2007 Posts: 3
Location: bangalore
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Post deleted by Administrator.
Reason: Spam
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