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TheraSeat Semi Zone Accessory Kit


Contact the supplier for pricing and availability

(1 supplier)

For information contact AT Aust on 1300 452 679

Short Description

The TheraSeat Semi Zone Accessory Kit enables a compatible alternating system to be adjusted into a seated position of 80 degrees with full support and therapy under the users sacrum. It overcomes the drawback of many alternating systems where the cells under the user's sacrum collapse and bottom out when the user's upper body is raised beyond 25 degrees. It can be fitted to any compatible 130mm overlay or 200mm mattress replacement system in the Theraflow range (except Theraflow 3).

Additional Info

More Details

* The TheraSeat SemiZone system is compatible with all alternating overlays and mattresses in the Theraflow range except for the Theraflow3 Overlay. It is suitable for Theraflow 5 (overlay) and Theraflow 8 (mattress replacement) models

* When installed, the TheraSeat injects the air pressure directly under the user's sacrum where most of the body weight is located rather than through the foot end.

* Special restriction valves prevent the air pressure transferring to the head and foot end resulting in a zone of high support pressure in the middle where it is needed the most.

* The compressor motor is upgraded in the Theraflow5 and Theraflow8 from 10 litres per minute to 18 litres per minute. The air hoses in the centre section of the mattress are reinforced with marine grade stainless steel springs to prevent any hose kinking at high angles of elevation.

* In the Theraflow8, the patented coverlet is replaced with a version featuring vertical support straps to prevent cells in the sacral region from falling over under the increased patient weight.

Kit contains
* Upgraded Control Unit with increased output from 10 to18 litres per minute.
* Upgraded Coverlet with cell stabilisation straps.
* Extra Hosing to inject air under sacral region
* Restriction valves to create a zone of support pressure under the sacrum.
* Spring Loaded Air Hoses to prevent kinking in sacral region


All pressure reduction products must be monitored to prevent 'bottoming out'. This occurs when the user's weight bears down so hard on the product material that it is flattened and the bony parts are pressed against the surface below the cushion or mattress. Where bottoming out occurs even with correct use (eg correct inflation levels), a different product may need to be considered.

It is advisable that a health professional be consulted when considering a suitable pressure care product.

Place Of Manufacture


Price Guide

Order code SZONE-004

Models And Options


* Only one model available
* Suitable for Theraflow 5 (overlay) and Theraflow 8 (mattress replacement) models


Specification Standard
Height Unknown
Length Unknown
Load Capacity (supplier stated) Unknown
Weight (kg) Unknown
Width Unknown

Setup And Maintenance


Follow the manufacturer's instructions for cleaning and maintenance.



Some assistive technology needs to meet Australian or other standards. Standards may relate to materials, manufacturing and installation. Products that meet Australian or international standards will have written certification. To find out if a product meets Australian Standards ask the supplier to show you the certificate. For more information about standards also see

Many of the items on the Assistive Technology Australia website are categorised as a Medical Device. Medical devices that are approved for use in Australia have been entered into a national database called the Australian Register of Therapeutic Goods (ARTG), which is maintained by the Therapeutic Goods Administration (TGA). You can ask the supplier for the ARTG number for the device you wish to purchase and search the ARTG for the entry. To access information on the ARTG visit

When buying a medical device it is advisable to only choose a medical device that is recommended by a healthcare professional and has been included on the ARTG.

Additional Images



Patient Support Systems Pty Ltd
Unit C3
15 Narabang Way
NSW 2085
Sales: 1800 432 247
Fax: 02 9844 5445
Toll Free: 1800 432 247


Whilst all care is taken to provide accurate information with respect to the item described, the Independent Living Centre New South Wales (ILCNSW), operating as Assistive Technology Australia, is not involved in product design or manufacture, and therefore not in a position to guarantee the accuracy of the information provided. Selection of equipment, which is both suitable and appropriate for individual needs remains the responsibility of the person(s) considering requisition, and no responsibility is taken by the ILCNSW (Assistive Technology Australia) for any loss or injury caused through use of the equipment or alleged to have arisen through reliance upon information provided. As information is subject to change any enquiries should be directed to the manufacturer.