The orthopedic-rehabilitation chair QUARK™ is a perfect solution during everyday rehabilitation of children with various locomotor disabilities. The stable construction and a highly developed system of supports and belts make a child feel safe and secure. Thanks to them a young user is able to have meals, play, learn or undergo a rehabilitation in a sitting or reclining position.

Caretakers can smoothly change the height of the seat. The chair has an adjustable backrest which enables the child to have a rest in a supine position. A particular advantage that will be appreciated by therapists is an easily adjustable tilt-in-space function. A wide range of accessories and numerous adjustments make it possible to adapt QUARK™ easily to the needs and dysfunctions of the child.The compact construction and small size of the chair is perfect while using it in little and tight spaces.

The QUARK™ base is available in one universal size.

Thanks to the ClickClack© system you can quickly, easily and without any additional adapters click the seat into all the bases available in our offer (URSUS™, URSUS HOME™, URSUS ACTIVE™, QUARK™).

wyrob medyczny


Stabilna konstrukcjaStable structure
The device ensures adequate stability and safety of a user.

Elementy odblaskoweReflective elements
The product has reflective elements to ensure your safety.

Niska wagaLightweight construction
The product is made of light metal alloy which positively affects the low weight of the device.

 Łatwa obsługaEasy to use
Intuitive way of adjustment and easy assembly.

Funkcja kubełkowaTilt-In-Space
It is possible to change the tilt angle of the seat.

Gwarancja 24 miesiące24-month warranty
We offer 24-month warranty on the product. We also provide after sales service.

A stylish and modern upholstery provides the highest comfort of use.

It is very easy to adjust the tilt-in-space function in the QUARK™ chair.

Easy height adjustment with lever.

Easy height adjustment with a lever.

Funkcja kubełkowa vs odchylanie oparcie - kliknij aby zobaczyć więcej

Tilt-in-space vs Recline – click to see more


It is recommended in the following cases:

  • Cerebral palsy – various types and forms.
  • Brain and spinal cord injuries with lower limbs paralysis and weakness, balance and motor coordination disorders with different etiology.
  • Demyelinating disease (e.g. multiple sclerosis – SM).
  • Meningocele.
  • Muscles diseases with weakness and paralysis (dystrophy, myasthenia gravis, myositis).
  • Genetic disorders.
  • Degeneration and neurological diseases.
  • Other condition connected with muscles weakness, paralysis and musculoskeletal disorders.
  • After head and spinal cord injuries and spine trauma with paralysis and paresis.



Symbol Measurement Unit Size 1 Size 2 Size 3
W Indicative user height* [cm] 80 – 100 100 – 130 130 – 150
A Seat width [cm] 19 – 25 22 – 30 24 – 34
L Seat depth [cm] 21 – 26 27 – 35 34 – 42
C Backrest height (with headrest) [cm] 44 – 55 49 – 59 55 – 67
E Backrest width [cm] 23 27 32
F Footrests length [cm] 13 – 29 16 – 40 16 – 43
Footer length [cm] 20 20 20
H1 Push handle height (demountable) [cm] 82 – 102 82 – 102 82 – 102
H2 Seat height [cm] 31 – 86 31 – 86 31 – 86
X Backrest tilt angle [°] 90 – 180 90 – 180 90 – 180
Y Tilt-in-space** [°] -10 do 45 -10 do 45 -10 do 45
Z Footrest tilt angle [°] 90 – 180 90 – 180 90 – 180
Max. user weight [kg] 35 35 50

Note: Measurement tolerance range is +/- 1 cm / ½ in.
*This measurement cannot be the main parameter while choosing the product size.
**Tilt angle of the seat & backrest against the floor.

How to measure the patient – click



Symbol Measurement Unit Size 1 Size 2 Size 3
G Total width [cm] 70 70 70
G1 Total length [cm] 100 100 100
H Total height with the seat [cm] 69 – 139 74 – 143 80 – 151
Frame weight [kg] 17,2 17,2 17,2
Weight of frame with the seat [kg] 24,5 26 27,5

Note: Measurement tolerance range is +/- 1 cm / ½ in.
Note: Approximate values, depending on the product configuration.
Note: In extreme positions of the handle, it may collide with the backrest when changing its angle. In such cases, the handle should be raised while adjusting.
* As a part of our permanent product improvement, Akces-Med reserves the right to change design and specifications without notice. Further, not all options and features offered are compatible with all configurations. Please refer to the user instruction manual for more information.


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Handle for pushing stroller

  • Ergonomic handle for pushing stroller
  • It is possible to adjust the tilt angle of handle
  • Aesthetic finish

Head support

  • The adjustment of head support’s width


  • The adjustment of backrest’s height
  • The adjustment of backrest’s tilt angle

Trunk side pelottes

  • Anatomically shaped pelottes
  • Easy and quick to fasten/unfasten pelottes

Safety rail

  • Safety rail secures user from falling out from the stroller, makes it more comfortable and safe to use stroller
  • Edged with washable upholstery with reflective elements
  • Easy to assemble

5-point belts

  • Stabilization of the user; lightening function
  • Vast array of adjustments regarding belts
  • Belts can be quickly unfastened
  • Solid fasteners

Upholstery – ATMO™

  • Spine load reducing and ventilating function
  • It is made of easily washable fabric
  • It has reflective safety marks


  • Depth and width adjustable seat
  • Pneumatic tilt-in-space system TILT-IQ™
  • Height and angle adjustable footrest
  • 5-point feet stabilizing belts with heel support and foot abduction-adduction adjustments


  • The adjustment of footrest’s height
  • The adjustment of footrest’s tilt angle
  • 5-point belts with heel support
  • Foot abduction-adduction adjustments


  • Light aluminium frame
  • Fully foldable
  • Ergonomic folding system

Gas spring

  • Easy seat height adjustemnt without any effort




More about our upholsteries you can find here


Breathable upholstery – ATMO

breath antiallergic

easy eco

Grass Size 1

Size 1

Sea Size 2

Size 2

Latte Size 3

Size 3

Waterproof upholstery – HYDRO

easy water eco durab

City Grass Size 1

City Grass
Size 1

City Rose Size 2

City Rose
Size 2

City Coffee Size 3

City Coffee
Size 3


Breathable upholstery – ATMO







Waterproof upholstery – HYDRO

*You can change upholstery colours between sizes without additional charges. Lead time up to 14 days.

**Lead time 14 days.

Real upholstery colours may differ from the presented images.