Spex Constructa Shape Cushion
Every wheelchair user is different, with their own individual needs and this own unique set of challenges.
The latest research shows that asymmetric limited hip flexion is closely linked to the development of other conditions, including pelvic obliquity, trunk asymmetry, scoliosis and windswept hip distortion (Ágústsson, A. et al, 2017). A solid foundation is the base for a stable posture, requiring a cushion to support the user’s pelvis for their unique physical requirements. Which is exactly what the Constructa cushion does.
The Constructa system is a range of modular cushions which can adapt to accommodate complex postural needs for users of all ages. From simple seating requirements to the most challenging demands, the result is better seating which minimises pressure while maximising comfort.
The Constructa Shape is the simplified version of this innovative modular cushion. It features a flat base with positioning blocks and contouring pads designed to deliver refined support which can be adjusted for the individual user. Thigh supports and the ischial well can be adjusted to accommodate rotation, growth (with seat depth and width adjustments) and to offload high-risk pressure areas. The ischial insert and overlay also help to distribute and reduce peak pressure points.
More Information
Constructa cushions are ideal for users with:
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Functional benefits:
A refined fit
Constructa cushions match the body’s contours, thanks to adjustments aligned with the body’s anatomy.Performance under pressure
The entire Constructa cushion was designed to manage pressure. The invertible positioning blocks provide the foundation for a supportive yet immersive cushion, while the ischial well blends without any firm edges for ultimate comfort. The thigh and trochanter blocks have a dual-layer construction using medium and firm foams. These blocks can be inverted with the firm grey foam at the top to reduce the immersion in a cushion zone, changing the overall pressure distribution of the cushion.Sleeker appearance
Stylish covers fit the cushion without limiting adjustment, while also making cleaning and maintenance easier.
A quicker solutions
The adaptable nature of the Constructa cushion means users who need custom solutions get them sooner, with just a single appointment required to find the perfect fit for many users.
Designed to adapt
The Constructa cushion was designed to evolve with the user’s needs, delivering an ideal solution for years of growth or postural change.Who can use a Constructa cushion?
The Constructa range of cushions are designed to accommodate and compensate for a wide range of symmetric and asymmetric postures. Users who will benefit the most from this highly adaptable system include:- Those who need to balance, stabilise, and maintain positioning of the legs and pelvis.
- Those who need pressure relief under bony prominences.
- Those who may need changes in position due to growth or surgery
- Individuals leg length discrepancies, wind-swept, pelvic obliquity, pelvic rotation, posterior/anterior pelvic tilt
- Individuals with a moderate risk of pressure injuries/decubitus pressure sores.
- Individuals with adduction and abduction of the legs.
Clinical Applications
The ground-breaking design of the Constructa cushions gives clinicians the ability to create a configuration which satisfies even the most complex postural requirements. In doing so, the Constructa Cushion will help:
- Prevent the ischial tuberosities from sliding forward.
- Provide offloading of the ischial tuberosities.
- Obtain correct hip angles and flexion angles of the thighs.
- Maintain correct transverse thigh angles.
Technical specifications
| Shape | |
|---|---|
| Hip flexion | 5° |
| Hip abduction | 10° (5° each leg) |
| Windswept posture | 5° |
| Pelvic obliquity | 3cm |
| Pelvic and thigh width | Standard contour: -2" High contour: -2" to +1" Superhigh contour: -2" |
| Leg length | -3" |
| Leg length discrepancy | N/A |
| Lateral thigh support height (trough support) | Standard contour: 3cm High contour: 5cm Superhigh contour: 8cm |
| Lateral pelvic support height | Standard contour: 3cm High contour: 5cm Superhigh contour: 5cm |
| Cushion height | 14" - 16" width: 7cm 18" - 20" width: 9cm |
| Weight capacity | 14" - 16" width: 90kg 18" - 20" width: 136kg |
| Product weight (16" x 16" | 1.6kg |
These specifications define the standard range of adjustability offered by Constructa cushion models. Further adjustment or modifications can expand the adjustment range beyond these specifications.
Warranty Information
Each Spex Cushion is carefully inspected to provide peak performance and is guaranteed to be free from defects in materials and workmanship for a period of 24 months from the date of purchase, provided normal use. Should a defect in materials or workmanship occur within 24 months from the original date of purchase, Medifab will, at its option, repair or replace it without charge. This warranty applies to the cushion components including the outer cover, incontinence cover, foam unit and strategic positioning base. This Warranty does not apply to the general wear and use, including punctures, tears or burns or customer abuse of any of the cushion components.
Product Compliance with Relevant Standards
Spex Cushions have been tested to and comply with the following standards:
- AS/NZS 3695 and AS/NZS 3696 (Wheelchair Requirements and Test Methods)
- AS/NZS ISO 16840.4 (Seating Systems for use in Motor Vehicles)
Spex also maintains a quality management system that is certified as meeting the requirements of ISO 13485:2016.
ARTG Certificate: 229625
