Spex Flex Cushion

The Spex Flex cushion implements a truly adaptable and easy approach for even the hardest-to-solve cushion requirements for users with complex postures.

As its name describes, the Flex has been designed to fulfill the postural requirements of wheelchair users who present with limited hip flexion. Up-to-date research shows that a considerable number of clients with cerebral palsy at GMFCS level V, present with asymmetric limited hip flexion.

Considering a lack of products available that can support clients with symmetric or asymmetric limited hip flexion, and considering the negative impact that this can have on people’s posture and function, we have developed this superior, comfortable, pressure relieving, stable and highly configurable cushion able to address even the most challenging postural requirements.

Every Flex comes with an easily configurable strategic positioning base. The innovative and clinical benefits of the pads and wedges allows the prescribing clinician to achieve a result on-the-spot whilst having the peace of mind that its able to change for future unseen posture changes.

Flex has a unique cover design which can change its shape. This ensures that once all the adaptations are done to the inner foam unit, the incontinence and outer covers are manipulated for a comfortable fit.

The Spex Flex cushion is a great choice for individuals who:

  • Have symmetrical or asymmetrical limited hip flexion
  • Have internal hip rotation with tight hamstrings on one side
  • Require pelvic and thighs pressure distribution due to asymmetric sitting posture
  • Have changing postural needs over time
  • Require a high degree of pelvic stability and specific contouring
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Functional benefits:
Spex Flex Cushion - On-The-Spot Customisations
Make on-the-spot customisations
The strategic positioning base offers on-the-spot customisations to accommodate even the most complex postural needs. 
Spex Flex Cushion - Asymmetric Limited Hip Flexion
Achieve asymmetric limited hip flexion
Asymmetric limited hip flexion is achieved by removing one or more frontal wedges from that side, depending on the angle required.  
Spex Flex Cushion - Limited Hip Flexion & Hip Extension
Accommodate limited hip flexion and hip extension
Lack of hip flexion on one side with lack of hip extension on the other is now possible to be compensated by changing the wedges from one side to the other. If pelvic obliquity is present, positioning pads provided with the cushion can be adjusted as well.  
Spex Flex Cushion - Symmetric Limited Hip Flexion
Achieve symmetric limited hip flexion
Symmetric limited hip flexion is achieved by removing one or more frontal wedges from both sides, depending on the angle required. 
Spex Flex Cushion - Address Hip Abduction
Address hip abduction
If hip abduction needs to be addressed, the frontal segments of the cushions can be pulled apart and locked in place with an additional wedge (provided with the cushion). 
Spex Flex Cushion - Windsweeping
Accommodate moderate windsweeping

If a moderate windsweeping needs to be accommodated, the frontal segments of the cushion cab be slightly angled. 

Spex Flex Cushion - Pelvic Obliquity
Accommodate pelvic obliquity
If a pelvic obliquity needs to be accommodated, foam segments can be added on the right or left side at the rear of the cushion to build up the pelvis on one side. 
Technical specifications
LengthCushion HeightWeight capacityTrough HeightProduct Weight (based on 16"x16")
14"-15"4.7"Width <16" : 90kgStandard: 30mm
High: 50mm
16"4.7"Width 16" or greater: 160kgStandard: 30mm
High: 50mm
17"-20"5.1"Width 16" or greater: 160kgStandard: 30mm
High: 50mm

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 

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