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check_circleStable, supported seating for everyday use
The Berollka Thessa is a paediatric therapy chair designed to support stable seated positioning for children who require postural support during daily activities, therapy, and learning.
check_circleAdjustable to suit each child
The Thessa features a modular seating system with adjustable components to support individual posture, comfort, and growth over time.
check_circleDesigned for participation across environments
With tilt-in-space and height adjustment functions, the Thessa supports use at home, in school, and in clinical settings, helping children stay engaged in everyday activities.
The Berollka Thessa Seating System is a paediatric therapy chair designed to provide stable seated positioning for children who require postural support during daily activities, therapy, and learning.
Positioning
High-low base
Support options
Growth adjustment
Clinical resources
The Thessa provides stable seated positioning for children who need extra postural support.
Adjustable dimensions and modular supports help create a more comfortable, secure, and functional sitting position for everyday activities.
The gas-spring assisted base makes it easy to adjust the seat height from floor level to table height.
This helps children join more activities comfortably at home, school, and in therapy settings.
The Thessa can be set up with a range of positioning supports to suit each child’s needs.
Lateral supports, pelvic supports, headrests, trays, and foot support help improve comfort, posture, and participation.
The Thessa is designed to adapt as a child grows, with adjustable supports and multiple sizing options.
This helps extend the Thessa's use over time with one, or multiple users.
Clinical resources and product documents support assessment, setup, and prescription.
These materials help clinicians and families choose the right size, supports, and configuration.
For children who require postural positioning support while staying actively engaged in everyday life, including play, learning, and social interaction at home and at school
Supports children who need stable and comfortable seating to maintain posture during everyday activities, learning, and play.
Adjustable seating and supports allow the system to adapt as the child grows, providing long-term use and consistent positioning.
Supports involvement in everyday environments including home, school, and social settings, helping children stay engaged and included.
Configurable supports and adjustments allow positioning to be tailored to each child’s individual needs for comfort and function.
The Thessa’s tilt-in-space function adjusts the seat angle while maintaining full support and alignment, helping children stay comfortable and engaged without repositioning. This allows for more relaxed or active sitting positions throughout the day.
It reduces pressure and fatigue, supporting longer participation in play, learning, and everyday activities.
The Thessa’s hi-lo function adjusts from floor level to table height, supporting children across different daily activities. Floor positioning encourages play and interaction, while higher positions support table use and eye-level engagement.
This flexibility helps children stay included in play, learning, and social activities throughout the day.
The Thessa features a gas spring-assisted system that allows smooth and controlled adjustments with minimal effort. Position changes can be made easily by hand using integrated handles, removing the need for foot-operated controls.
This makes adjustments quicker and more intuitive throughout the day, helping maintain comfort, positioning, and ease of use across different environments.
| Measurement | Size 1 | Size 2 | Size 3 | |
|---|---|---|---|---|
| SW | Seat width | 18 - 26 cm | 24 - 32 cm | 30 - 38 cm |
| SD | Seat depth | 16 - 28 cm | 22 - 34 cm | 28 - 42 cm |
| BH | BH (with standard upper back unit) | 30 - 35 cm | 35 - 40 cm | 42 - 52 cm |
| BH | BH (with long upper back unit) | 33 - 38 cm | 40 - 50 cm | 50-62 cm |
| TW | Thorax width | 16 - 26 cm | 22 - 32 cm | 28 - 38 cm |
| BA | Back angle | 80°-120° | ||
| SA | Seat angle | -6° - 35° | ||
| KA | Knee angle | 90° - 180° | ||
| LLL | LLL-adjustment short | 16 - 25.5 cm | 22 - 33.5 cm | 28 - 43.5 cm |
| LLL | LLL-adjustment standard | 18.5 - 28 cm | 24.5-36 cm | 30 - 45 cm |
| SH | Seat height | 25-65 cm | ||
| WF | Width base frame | 55 cm | 55 cm | 63 cm |
| TL | Total length | 82 cm | 90 cm | 90 cm |
| Total height (min) | 58.5 cm | 60 cm | 67 cm | |
| Total height (max) | 101 cm | 105 cm | 118 cm | |
| AH | Armrest height | 13.5 - 20 cm | 16 - 24 cm | 18 - 29 cm |
| Max. load | 30 kg | 40 kg | 50 kg | |
| Weight | 27.6 kg | 30 kg | 33.8 kg | |
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