Wheelchair mobility for individuals with SCI - Physiopedia
A properly fitted wheelchair provides comfortable seating and good back support, improving posture and ultimately optimizing function. ... A wheelchair that does not fit properly may lead to pressure ulcers, poor posture, reduced balance, difficulty propelling the wheelchair, and difficulty with transfers.

Specialised Wheelchair Seating - British Society of ...
3.6 People with a permanent disability, which limits their ability to walk, are eligible for NHS wheelchair provision. Specialised wheelchair seating is required by those who need a wheelchair for their mobility but due to postural instability or deformity need extra support in order to function.
https://www.rhn.org.uk/
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https://www.rhn.org.uk/www.rhn.org.uk › ... › Therapies and services

Wheelchair and Postural Management Service | Royal ...
Our specialist Wheelchair and Postural Management Service team adapt bed ... each patient's postural support, which increases independence and comfort. ... and physiotherapists, adapt bed positioning supports and wheelchair seating for a ...

If the purpose is the alleviation of pain or for general comfort, I would suggest "palliative" for "confort".

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Note added at 4 hrs (2019-11-18 18:37:19 GMT)
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Update with the extra info in the discussion: The "de confort" could also refer to the control system of the wheelchair (anti-bump/tilt control, navigation etc.), i.e. the control system guaranteeing a smooth ride & correct navigation.

Perhaps "appropriate wheelchair control solution" or "wheelchair control solution appropriate to the patient condition" would work, if this is indeed the correct interpretation.



Reference:

"the venture is developing a wheelchair control solution to respond to the needs of the severely disabled and paralysed." (http://anthillonline.com/aviator-smart-100/)


" CONTRÔLE D’AMORTISSEUR DYNAMIQUE.

Le contrôle d’amortisseur dynamique permet d’ajuster idéalement le comportement des amortisseurs pour qu’ils s’adaptent à toutes les situations de conduite, et améliorent le confort et la dynamique de conduite. En plus de la ****configuration de confort*** standard, qui amortit les bosses et autres mouvements indésirables, deux autres programmes sont disponibles : les modes Sport et Sport+. Dans ces modes, les amortisseurs sont automatiquement serrés pour un style de conduite plus sportif." (https://www.bmw-tahiti.com/fr/all-models/x-series/X3/2014/dr...

https://www.vela.eu › products › electric-wheelchairs
The complete range of electrical chairs from VELA can be ordered with a wide selection of accessories and special solutions for the chair to be adapted to the individual user's needs. VELA offers individual solutions in terms of padding, comfort, pressure relief, support,

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Note added at 9 hrs (2019-11-18 23:16:46 GMT)
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OH!

OR

special solutions for the chair to be adapted to the individual user's needs.

This would be my translation.