Lewis Seating Systems
Lewis Seating Systems is a producer of seating orthoses.
The Lewis team strives to improve the quality of life of wheelchair users.
Enhanced freedom and happiness can be enjoyed when you sit without pain!
Sit & feel free!Sit & feel free!

The Lewis seating orthosis


The Lewis sitting orthosis consists of a back support, which is being transformed into a sitting orthosis on site, and a dynamic tilting support seat on a mounting Multiframe. Both the back support and the dynamic tilting seat are available in several dimensioning.

The Lewis sitting orthosis is mounted on all kinds of wheelchairs by means of especially developed Lewis mounting kits. Besides in wheelchairs the orthosis can also be mounted in diverse sitting furniture, as a lift assist chair or a working chair. 

In consultation with a medic of therapist more or less trunk stability is chosen. Posture angles are applied and further wheelchair settings are adjusted to this. In the back support a Stability Feedback indicates non-stop whether enough trunk stability is being provided. While the client is sitting against the not yet individually made back support, the trunk is supported in such a way, that with sufficient mobility it is stretched out.

After that the fit of the back support is individually adjusted to the client. Therefore the client has to be in the desired posture in the back support for a couple of minutes, often with some assistance.
During this process the back support takes the desired fit and the moulded parts will become hard. 
The surface of the back support stays soft and is totally upholstered. After this process the sitting orthosis is immediately ready to use. The mounting in total costs about two hours. Depending on the client's desire the sitting orthosis can be permanent or dismountable. 

Green : enough trunk stability
Red    : too little trunk stability

On 20,21 and 22 April, the REVA takes place in Gent! Of course Lewis is present here.

Do you have a question about services? Looking for the right device or accessory? At REVA you're sure to find the right solution! Either by visiting some of the 160 exhibitors or by participating in one of the seminars or workshops.


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The way Lewis solves seating problems is based on a new perspective on sitting. This perspective is the result of intensive collaboration with specialists and researchers. We are happy to share our knowledge and experience on sitting. We hope we can contribute this way to a world in which people can sit pain free!

​We chose to make the month of March 2017 all about "knowledge sharing". Want to know what we do this month? Read more!


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On July 2nd this year the 3rd Sit & feel free!-Award was handed to Edgar Masselink of the Action Youth sports camp! Besides a beautiful award he also received the amount of € 2500, - to spend on this great event. Linda Visscher, an enthusiastic Lewis user, has long been a volunteer at the sports camp and has put forward this good initiative.


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This week is the day, the Support2016 starts! Support is an event not to be missed. Support is in fact the biggest, most exciting and instructive exhibition in the Benelux for anyone with a physical disability, their environment and people who professionally deal with the restrictions that may impose physical disabilities. Support gives you insight into the latest trends and techniques.


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