Ki Mobility Axiom SP Fluid Cushion

A skin protection and positioning cushion that focuses on immersion and envelopment using a Hydrolite fluid bladder

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Axiom SP Fluid takes advantage of the Axiom Difference and is designed to provide increased immersion and envelopment, using a Hydrolite fluid bladder instead of the Viscoelastic Foam used in the Axiom SP Visco.


  • Hydrolite Fluid Bladder
    • The Axiom SP Fluid uses a Hydrolite fluid bladder instead of Viscoelastic Foam. The bladder rests directly under the super stretch outer cover, allowing it to conform to the tissues supporting the Ischial Tuberosities.
    • Hydrolite is a non-Newtonian fluid that behaves as a solid under the force of gravity, but flows as a viscous fluid under load, which can help minimize shear. It is also incredibly light, eliminating the "weight penalty" of other fluid cushions. It is less temperature sensitive than other fluids, meaning it will provide more consistent performance regardless of climate.
  • Increased Envelopment
    • Axiom SP Fluid is designed to provide increased envelopment, allowing the trochanters to bear an effective load. This improves stability by widening the base of support and reduces the load the tissue that supports the Ischial Tuberosities must bear.
  • High-Quality Foam Materials
    • Axiom SP Fluid is constructed with foam that has a high IFD and density. The dual density polyurethane foam base offers firm support in the lower layer with a durable comfort layer on top. High-quality materials lead to a long-lasting, comfortable, and high-performing product.
  • Surface Tension Reduction
    • The Hydrolite fluid bladder sits on top of the waterproof inner cover; reducing surface tension and maximizing envelopment of the ischia and coccyx. The bladder rests directly under the super stretch outer cover, allowing it to conform to the tissues supporting the Ischial Tuberosities. By using the super 4-way stretch Lycra outer cover material, surface tension is reduced, providing better immersion into the well.
  • Pre-Contoured Shape
    • Its important for all cushions to have a properly designed pre-contoured shape. Axiom SP Fluid has a properly designed pre-contoured shape. Axiom SP Fluid is designed to provide increased immersion, allowing the trochanters to bear an effective load, widening the base of support, and reducing the load the Ischial Tuberosities must bear.
  • Feature Enhanced Covers
    • Axiom SP Fluid has an innovative cover that is aesthetically pleasing with functional benefits for both the client and caregiver. The super 4-way stretch Lycra outer cover reduces surface tension while the pleated 4-way stretch inner cover with self-sealing zipper is water resistant and is easy to clean. The water-resistant zipper and loop zipper pull make it simple to don and doff the cover while protecting the foam. There is an easy-to-reach front handle with utility loops for hanging accessories.



Cushion Composition Foam/Hydrolite Fluid Bladder
Cover Composition 4 way stretch Lycra
Can accommodate a pelvic obliquity Yes
Can correct a pelvic obliquity Yes
Cushion Height 114 mm
Able to be adjusted by user No
User Weight Limit 158 kg
Total Cushion Weight 1.59 kg
Warranty 2 years
Spare Covers Available Yes
Incontinent Cover Available Yes
Maintenance Required None

How will I know which wheelchair cushion or backrest is right for me and my needs?

Get an expert to help you! Your wheelchair therapist (or Occupational Therapist or Physiotherapist) will help you decide what you need from these products and source these items for you to try. There are numerous different products and brands in the New Zealand market so the choice is vast - but each style has different advantages and disadvantages. Your therapist will be able to talk you through these and help short-list some appropriate products for you.

If you are looking for a wheelchair cushion and/or backrest for a family member, you need to think about what their needs are.  Some of the factors that need to be considered are the following:

  • Does the user have a history of pressure areas or sores?
  • How long will the user be sitting in the wheelchair for each day?
  • Are there any incontinence issues?
  • Does the user have any significant postural challenges e.g. slumps to one side?

Cushions offer several of the following features – comfort, pressure relief and positioning. There is also a range of different materials that these are made from and some require more ongoing maintenance than others.  Our Customer Care team can talk you through the various options to find the ones within our range that will work the best for the user.

Can I trial different backrests and wheelchair cushions?

Yes - we are more than happy to send these items out on trial, as long as a therapist has requested it. It is really important that you have the opportunity to try these products as we all have different comfort levels and needs. Generally the trial time frames are for two weeks and the therapist - and sometimes one of our product specialists - will set the product up to meet your needs and show you how to adjust it if necessary.

How do I wash my cushion cover?

Different manufacturers have different washing instructions. Each cushion should come complete with washing instructions within the product manual, so we recommend you read this.

  • For Ottobock and Dreamline cushions, turn the cushion inside out and machine wash on a regular cycle. Air dry flat.
  • For Varilite cushions, zip the cover closed and place good side out in a washing machine. Air dry flat.
  • We do not recommend that any covers go into the tumble dryer.

Can I sit on the wheelchair cushion without its cover on it, while the cover is being washed?

We don't really recommend this. The cover is an important part of the cushion and the two parts are designed to work as a team.

How long will a cushion or backrest last?

We would expect most wheelchair cushions and backrests to last for at least five years. However, this does depend on how the item is cared for.

How do I adjust a Varilite cushion to contour to me?

Begin with the cushion fully inflated and valve closed. Transfer onto the cushion and open the valve by turning counter clockwise. Listen for a change in pitch and close the valve.

Are wheelchair backs easily removable so that I can fold up my wheelchair and take it in the car?

Yes. Different styles and brands of wheelchair backrests have different types of mounting brackets. Most of these simply unclip and allow the backrest to be pulled off. When you are ready to put it back on, it simply slots back into place and then is secured using the clips already on the wheelchair back canes.

Need more advice or help?

Our team of Key Account Specialists are available to work with therapists to help set up equipment, help with selection of the correct product and trouble shoot. Our Customer Care Team are on the phones from 8am to 5.30pm every weekday on 0800 31 61 81 or you can email them (click here).

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