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 patient 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™).

Special features

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

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 months warranty
We offer 24 months 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.

Size tables

Concise size table

Symbol Unit Size 1 Size 2 Size 3
W [cm] <100 <110 <120
E1 [cm] 23 27 32
A [cm] 19-25 22-30 24-34
C [cm] 44-55 49-59 55-67
F [cm] 13-29 16-40 16-43
L [cm] 21-26 27-35 34-42

Note: Measurement tolerance range is +/- 1 cm / ½ in.
How to measure the patient – click

Symbol Measurement Unit Size 1 Size 2 Size 3
A Seat width [cm] 19-25 22-30 24-34
B Seat depth [cm] 21-26 27-35 34-42
C Backrest height (with headrest) [cm] 44-55 49-59 55-67
C1 Headrest height [cm] 20 20 20
E Backrest width [cm] 23 27 32
F Lenght of footrest [cm] 13-29 16-40 16-43
Footplate length [cm] 20 20 20
H Total height with the seat [cm] 128-139 133-143 139-151
H1 Push handle height (demountable) [cm] 82-102 82-102 82-102
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
Indicative user height* [cm] <100 <110 <120

*The value cannot be the main factor for selection of the product size.
**Tilt angle of the seat & backrest against the floor.
How to measure the patient – click

Weight and dimensions

Symbol Measurement Unit Size 1 Size 2 Size 3
G Total width [cm] 70 70 70
G1 Total length [cm] 100 100 100
H2 Adjustable frame height [cm] 25-80 25-80 25-80
Frame weight [kg] 17,2 17,2 17,2
Weight of frame with the seat [kg] 24,5 26 27,5

Note: Orientation value, depending on the product configuration.

Standard equipment

1 2 3 4 5 6 7 8 9 10 11

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 patient 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 points belts

  • Stabilization of the patient; 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 points 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



Standard Colours

More about our upholsteries you can find here


Breathable upholstery

breath antiallergic

easy eco

Grass Size 1

Size 1

Sea Size 2

Size 2

Latte Size 3

Size 3

Waterproof upholstery

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







Waterproof upholstery

*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.