CareFlex HydroFlex Bedienungsanleitung

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Class 1

Medical Device

Medium = 150kg max user weight.

Small = 100kg max user weight

Care

Flex

FLEXIBILITY IN A WORLD

OF MIXED ABILITY

HydroFlex User Instructions

These are the user instructions for the CareFlex HydroFlex chair.

Please read them carefully before setting up and using the chair and keep them in a safe

place for future reference.

These instructions include details of the performance of the chair. If the chair should

start behaving outside of its intended performance, show signs of damage or excessive

wear, or otherwise feel unsuitable, please take it out of service and contact CareFlex

or your CareFlex Distributor immediately.

The HydroFlex chair is designed for a range of clients who require a combination

of comfort, pressure management and posture control from their seating system.

The chair has a built-in pressure management system based on CareFlex’s patented

WaterCell Technology®.

CareFlex classiﬁes the HydroFlex as an advanced seating system intended for use as part of a rehabilitation

programme. The adjustability of the chair and the range of complementary accessories means that the chair is suitable

for clients who require speciﬁc support and positioning to achieve a good posture.

The HydroFlex should be selected for clients;

• with neurological conditions who need to maintain a good, midline posture.

• with neurological conditions who require ‘correct’ functional positioning for rehab and activities.

• with ﬁxed skeletal postures of the hips and spine.

• with conditions affecting their abdomen which makes upright sitting uncomfortable.

• who require a wide range of positions for different activities through the day.

The HydroFlex chair is all about keeping the client in a good, midline position. Once set up, the position is ‘prescriptive’

and will hold the client reasonably ﬁrmly. For this reason, the HydroFlex is not suitable for those clients with strong

contractures or with pronounced pelvic windsweeping or obliquity. The HydroFlex is not suitable for highly agitated

clients who will not beneﬁt from the prescriptive support the chair offers. Unless these clients trial the chair and ﬁnd

it comfortable and supportive, it would be advisable to consider the softer support of the HydroTilt.

The HydroFlex is suitable for clients with neurological conditions such as MS or MND, for stroke rehabilitation and

rehabilitation following spinal or head injury.

The HydroFlex incorporates features which allow it to be set up to accommodate different postures and provide seating

positions for a range of activities. The key features are;

• Tilt-in-Space, which allows the clients position to be adjusted without affecting pelvic position.

• Back Angle Recline, which can be adjusted to provide a comfortable hip angle.

• Legrest elevation, to raise the legs and support the lower leg with the knees at a relaxed angle.

The suitability and effectiveness of these features are dependent on correct chair set up. Correct chair set up is

dependent on three key elements; seat to ﬂoor/footrest height, seat width and seat depth.

Seat to ﬂoor height and seat width will have been measured during the initial seating assessment and the HydroFlex

will have been factory assembled to these measurements. Seat depth must be adjusted to suit the client once the

chair has been delivered. Seat to footplate height can be adjusted to suit the client.

Use a cloth tape measure to measure the client as you are setting up the chair. This will help limit the need for

any re-adjustment.

Regularly check the HydroFlex set up to ensure it is working as intended and the client is beneﬁting from the pressure

management solutions which are built into the chair.

HydroFlex Client Characteristics

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Fixed and Loose Covers

Pressure Management

The HydroFlex incorporates CareFlex’s patented WaterCell Technology® in the seat in combination with a composite

visco elastic memory foam and high elastic foam cushion. The memory foam allows the seat cushion to conform

to the client’s body shape, distributing their weight over as large a surface area as possible. The high elastic foam

prevents the memory foam bottoming out and makes the cushion responsive to client movement. The WaterCell

Technology moves with the client to ensure that the cushion remains in contact with the client as they move and

alter their weight distribution.

Two lumbar options are available for the HydroFlex and each provides pressure relief in a different way. The deep

laterally contoured back has kidney pads to provide simple lateral stability. These pads also increase the contact

surface between client and seat, distributing their weight over as large a surface area as possible. The ﬂat back

incorporates a water cell which covers the lumbar and kyphotic spine.

These pressure relief features make the HydroFlex suitable for those clients at medium to high risk of pressure damage

when used as part of a therapy programme assessed and prescribed by an appropriate Healthcare Professional.

Adjustment Control Options

There are three formats of the HydroFlex available, manual, motorised and Pro-control. On the manual version of the

HydroFlex Tilt-in-Space, Back Angle Recline and the elevating legrest are controlled by locking gas actions.

On the motorised version of the HydroFlex the Tilt-in-Space, Back Angle Recline and the elevating legrest are controlled

by electric actuators which are powered by a rechargeable 24V battery system.

The Pro-Control version of the HydroFlex uses actuators to control the Tilt-in-Space and legrest features but utilizes

a locking gas action for the back angle recline. This is because in many situations the back angle recline needs to

be set up at a speciﬁc angle for the client and should not be adjusted further. The Pro-Control system allows the

healthcare professional to set up the back angle recline and leave the day to day adjustments of TiS and legrest

elevation to the client/carer.

Identiﬁcation

Each HydroFlex chair has a unique chair number which must be quoted during any correspondence with CareFlex or

your local CareFlex Distributor. This number is on a silver foil label on the cross bar of the seat depth adjustment

frame at the back of the chair. The number is essential for tracing the product and allows accessories and spare

parts to be easily selected.

The HydroFlex is available with either ﬁxed or loose covers. The ﬁxed cover version has a cleaner, crisper appearance

to make what is essentially a clinical product look more appropriate in a domestic environment. The ﬁxed cover

greatly reduces the need for Velcro on the chair, which may make the chair more appropriate in areas where infection

control is a signiﬁcant consideration. The loose cover version has greater ﬂexibility in terms of adjusting the chair’s

conﬁguration and carrying out servicing and repair procedures.

Correct seat width; client

sits ‘midline’.

Seat Too Wide; client tends

to lean to one side.

1. Chair Set-up

1a. Seat Height & Width

Seat Too Low;

Increase in pressure on the

buttocks and lower back.

Seat Too High;

Increase in pressure

beneath thighs.

If the client can raise to standing themselves or with

minimal assistance, the seat height should be set so that

the client’s feet rest ﬂat on the ﬂoor and the underside

of their thighs are in contact with the full length of the

seat cushion. If the seat height is too high, the client’s

heels will be lifted off the ﬂoor and pressure will build

up along the underside of their thighs. If the seat is

too low, their knees will be raised and there will be no

contact between the back of their thighs and the seat

cushion. This will increase the pressure on their bottom

and sacrum and could cause discomfort at the hips.

If the client is less ambulant and is being regularly

portered then seat height can be set relative to the

footplate. Again, ensuring the foot is ﬂat and fully

supported is important.

Seat width affects side-to-side pelvic stability. This is

important as the spine should line up centrally with the

pelvis. If the pelvis is free to move to one side then the

client’s spine will usually lean in the opposite direction. As

gravity pulls the client over, the spine will begin to curve

to compensate as the client tries to keep their head level.

The client will take on a characteristic ‘S’ shaped spine or

scoliosis. The more upright the user’s trunk is, the more

critical pelvic stability becomes. It is, therefore, important

to use a chair with the correct seat width in order to

position the pelvis properly.

Seat width should always allow for a little bit of movement

as the client’s body weight and posture naturally shifts

throughout the day. If the client is held in a rigid

position they will quickly tire and experience discomfort.

HydroFlex seat height and width will have been meas-

ured during assessment and the chair made to these

dimesions for the client prior to delivery.

If further adjustment is required, please contact your

local CareFlex Distributor.

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Seat Too Short;

Increase in pressure

beneath the bottom.

Seat Too Long;

Increased pressure on bottom,

sacrum and shoulders.

1b. Seat Depth

It is important to set seat depth correctly in order to

prevent ‘sacral sitting’ and to achieve the best distribution

of weight between the client and the chair. Sacral sitting

occurs when the pelvis tilts backwards so that the lower

back (sacrum), as well as the bottom, is resting on

the seat cushion. The sacral area can be susceptible to

pressure problems. Sacral sitting will occur if the seat

depth is too long. If the seat depth is too short then

the client’s body weight will be concentrated in too small

an area.

Seat depth should be set with the client’s bottom

positioned ﬁrmly at the back of the seat cushion so

that their lower back and lumbar is supported by the

back cushion. There needs to be a two or three ﬁnger

gap between the client’s calf and the front of the seat

cushion for comfort.

If the client already has a chair or wheelchair with the

correct seat depth, measure this size and use it to set

up the HydroFlex.

Seat depth is adjusted by moving the back of the chair

over the seat unit. The front edge of the seat will stay in

the same place. The seat depth mechanism is controlled

by a release lever on the rear left hand underside of

the seat.

To adjust seat depth, twist the seat depth release lever

clockwise. Hold one of the curved tubes of the seat back

frame and push/pull the back to the desired position.

Once the back is in the correct position let go of the

lever. The back may ‘jump’ back slightly as the locking

mechanism engages.

Release lever for adjusting seat depth.

Seat depth should not be

adjusted when a client is sat in

the chair or when the chair is

tilted backwards.

1c. Back Angle Recline

Back Angle Recline (BAR), where hip angle can be

adjusted.

The HydroFlex has Back Angle Recline (BAR). BAR is used

to adjust the angle between the seat and back, thus

changing the angle of the client’s hips.

When the back is fully upright, the angle at the client’s

hips will be approximately 95°. However, because of the

contoured proﬁle of the back, the client will ﬁnd this

a comfortable position for mealtimes, activities and for

preparing to raise to standing.

The back angle can be reclined to give a 125° angle at

the hips. This is a comfortable position for resting.

1d. Back Angle Recline

Adjustment

Caution has to be taken when adjusting BAR to provide

a comfortable and stable sitting position. If misused, BAR

can lead to an unstable seating position where the client

can easily slide out of the chair or quickly slide into

sacral sitting. Both sliding actions could lead to pressure

damage through shear.

Ideally, BAR should be altered very occasionally to suit

client condition. For regular changes of position it is best

to use the TiS facility, as this can be adjusted without

affecting pelvic stability. BAR may be disconcerting for

some clients. Please ensure the client is comfortable and

does not become distressed if they are fully reclined

backwards.

1e. Back Angle Recline

Fully Motorised Version

On the motorised HydroFlex BAR is controlled by the

handset. The third row of two buttons control BAR. The

right hand button reclines the back. The left hand button

returns the back to its upright position.

Always warn the client before

changing back angle to ensure

they do not become distressed

or agitated.

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BAR lever hidden under push bar valance.

1f. Back Angle Recline

Manual & Pro-control

A small lever located on the centre of the push bar

controls Back Angle Recline. This lever is hidden by a

valance cover to prevent the BAR being accidentally

activated. As mentioned above, BAR has a fundamental

affect on seating position and must only be adjusted by

those who understand how to achieve a good sitting

posture.

To adjust the back angle recline, undo the valance from

the underside of the push bar to reveal the small BAR

lever. Squeeze the lever gently to unlock the gas action

controlling BAR and allow the back to be tilted to the

required angle. When the client is in a comfortable

position, let go of the lever and the back angle will

lock in position. Re-position the valance cover to hide

the BAR lever.

1g.Articulating Back

The Articulating Back allows for proﬁling of the back

to accommodate kyphosis and more complex head

positioning issues. The top section of the chair back can

be angled through a range of 35° forward of its upright

position in 5 indexed steps.

Leg Elevation, where knee angle can be adjusted.

3. Day to Day Use

3a. Brakes

Brake lever on rear castor.

Before transferring in and out of the chair the brakes on

the castors should be activated. The castors have a full

brake which locks roll and swivel. Always ensure that at

least two of the castor brakes are applied before a client

transfers in or out of the chair.

To apply the brakes begin by generally positioning the

chair. Once the chair is in the desired position push it

forward slightly. This will swing the rear castors around

to reveal the brake levers. Press down the end of the

levers to lock the brakes. To release the brakes, gently

kick the top of the brake lever so that it clicks ﬂat.

Do not attempt to push the

chair with the brakes applied as

this can damage the castors and

stress the frame of the chair.

Undo the locking wheel ﬁrst...

There is a two stage adjustment to the Articualting

Back mechanism. Firstly, the locking wheel needs to be

released. This is located on the right side of the back

frame where the push bar is attached to the back frame.

Turn the locking wheel through two complete turns to

free the mechanism.

The second stage is to pull out the indexing pin on

the left side of the back frame. The top section of the

back can now be angled. Once in position to support

the client’s head and shoulders, release the indexing pin

and feel for it clicking into place. Re-tighten the locking

wheel to eliminate any wobble in the mechanism.

1g.Articulating Back

...& pull out the indexer on the left to adjust angle.

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3d. Motorised & Pro-control

Release lever for legrest elevation.

3c. Manual Option

3b. Elevating Legrest

The HydroFlex has an integral legrest which can be

angled up to support the legs. The legrest articulates,

following the movement of the knee as it elevates the

legs.

The legrest incorporates visco-elastic memory foam for

pressure relief.

Ensure the legrest is fully lowered before transferring a

client to or from the chair.

The range of Legrest elevation is from 80° at the

knees to 170°. The comfort of legrest elevation is often

determined by hip angle. Over-elevating the legs can

cause tightness in the hamstrings which could cause

discomfort, especially if the BAR has been set up so that

the hip angle is close to 90 degrees.

Leg Elevation, where knee angle can be adjusted.

On the manual option of the HydroFlex legrest elevation

is controlled by the lever located on the right hand side

panel. Pull this lever out and the legrest will begin to

raise. It may be necessary to lift the legrest towards

its maximum elevation, depending on the weight of the

client’s lower legs. Once the legrest is at the desired

angle, release the lever. To lower the legrest, pull the lever

out and the legrest will return to its lowered position. It

may be necessary to push the legrest down if the client

has weak or light lower legs.

On the motorised and Pro-control options, legrest

elevation is controlled by the handset. The top row

of two buttons control Legrest elevation. The left hand

button raises the legrest. The right hand button returns

the legrest to its lowered position.

3d. Integral Footplate (cont.)

Pull the lever sideways to adjust footplate angle.

The legrest has an integral height and angle adjustable

footplate to provide support to the client’s feet when

the legrest is raised or when they are being portered in

the chair. The footplate is stored behind the top section

of the legrest. Lift the top section of the legrest and

the footplate will drop dow. To lock the footplate in its

primary, 90° angle, pull the lever on the right side of

the footplate sideways. The footplate has three angle

settings to provide comfort and support plantarﬂexion.

As the legrest is elevated, having a 90° angle at the

ankle will become more uncomfortable. The footplate can

be angled down to provide a more relaxed position. To

adjust the angle pull the lever on the right side of the

footplate sideways. Tilt the footplate to the desired angle

and release the lever. The lever will slide into the nearest

angle setting.

To fold the footplate up and store it behind the top

section of the legrest, pull the lever on the right side

of the footplate sideways and raise the footplate up. Lift

the top section of the legrest, push the footplate fully up

and lower the top of the legrest to hold the footplate

in place.

SAFETY NOTE

It is essential to regularly check

the adjustment of the footplate

to ensure it does not hit the

ground when lowered. When

the chair is tilted backwards it

is possible to extend the legrest

length so that it is greater than

the seat to ﬂoor height. However,

if the chair is tilted forward when

the legrest is fully extended the

footplate may hit the ﬂoor and

damage the legrest mechanism.

3e. Seat to Footplate Height

Indexing pin to set the seat to footplate height.

Seat to footplate height can be adjusted by pulling out

the indexing pin located on the (client’s) right hand side

of the legrest assembly. Pull out the indexer and raise/

lower the footplate to the desired height relative to the

seat. Once at the desired height, release the indexer. The

indexer will click into the nearest height setting and lock

the footplate height.

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Tilt-in-Space lever, manual HydroFlex.

3f.Tilt-in-Space (TiS)

Tilt-in-Space, where seat to back relationship stays

the same as the chair tilts.

The HydroFlex has a Tilt-in-Space facility which allows

the client to be reclined without adjusting the angle at

the hips.

This helps the client to maintain a stable sitting posture

whilst distributing their weight over a large surface area.

Tilt-in-Space should be regularly adjusted to facilitate an

easy change in weight distribution, thus avoiding pressure

build up in any one area.

Always warn the client before changing Tilt-in-Space to

ensure they do not become distressed or agitated.

The chair will Tilt-in-Space 30° backwards. This degree of

tilt may be disconcerting for some clients. Please ensure

the client is comfortable and does not become distressed

if they are fully tilted backwards.

3g.Tilt-in-Space Manual Option

On the manual option the TiS feature is controlled by the

large lever on the push handle.

To adjust the TiS, squeeze the lever and tilt the chair to

the desired angle. Release the lever to hold the chair at

the desired angle.

SAFETY NOTE

When tilting the HydroFlex

forward, ensure the footplate

height is set so that the footplate

will not hit the ﬂoor.

3h.Tilt-in-Space,

Fully Motorised and Pro-control

Open the sides of the back cover to reveal the

indexer for wing angle adjustment.

On the motorised and Pro-control option the Tilt-in-Space

is controlled by the handset. The second row of buttons

control Tilt-in-Space. The right hand button tilts the

chair back. The left hand button returns the chair to its

upright position.

NOTE: The HydroFlex has a large range of Tilt-in-Space.

When the chair is fully upright, the seat surface will

be level with the ﬂoor, encouraging the client into a

standing position.

3i. Back Wings

The top section of the HydroFlex back has adjustable

wings to help upper trunk positioning. The wings are

angle adjustable and can be used to help stabilise

headrest position, provide support to the shoulders or

change the shape and support offered by the soft pillow

headrest accessories.

The wings can be angled in to provide close support for

the client or opened out if the client is broad across the

shoulders or does not want to feel restricted.

To adjust wing angle, open the zip closures at the top

of each side of the back cover. A small recess houses an

indexing pin controlling wing angle. Lift the top of the

indexing pin to release the wings and adjust them to

the desired angle. Once at the desired angle, release the

index and allow the pin to lock into the nearest setting.

After adjusting wing angle, fasten the velcro closure so

that the cover sits neatly.

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4a. Batteries and Charging

Plugging the charger jack into the socket on the

side of the handset.

4. Fully Motorised &

Pro-Control Chairs

The Pro-Control HydroFlex uses actuators to adjust the

Tilt in Space and legrest elevation. The fully motorised

HydroFlex uses actuators to adjust the Tilt in Space,

Legrest elevation and Back Angle recline. Both systems

utilize a 24V DC rechargeable battery system which needs

to be regularly charged in order to maintain battery

performance.

When a motorised chair is ﬁrst delivered and before it

is used, charge the batteries for twelve hours to ensure

they are at full power. Similarly, if the motors have not

been used for a prolonged period, charge the batteries

for twelve hours to bring them up to full power. Establish

a regular regime for battery charging. Charging the chair

regularly overnight is recommended. The battery unit will

sound a warning signal when the battery is nearing its

minimum recommended charge level. Charge as soon as

is practicable once this signal is heard.

Only chargers supplied by CareFlex should be used to

charge CareFlex chairs. Do not use a CareFlex charger to

charge other products.

• Fit the jack plug connected to the charger into the

socket on the hand control unit of the chair.

• Plug the charger into a 240V AC mains electric

supply and switch on the power to the charger. See

the notes above for charge times.

• At the end of the charging cycle, switch off the

charger and disconnect all leads and plugs.

When disconnecting the cable, always pull the moulded

body of the plugs straight out of the socket. Do not

pull the wire as this may damage the cable and the

socket.

DO NOT:

• leave the chair connected to

the mains with the mains power

switched off.

• move the chair when it is

connected to the mains.

• charge the batteries when there

is a client in the chair.

If, after charging, the motor

actuators do not work, take the

chair out of service immediately

and contact CareFlex or your local

Distributor.

NOTE:AutoTilt chairs have a different location for attaching the charger.

See the AutoTilt section for details.

Handset for Pro-Control HydroFlex.

4b. Using a Chair with Motorised

Actuation

A chair with motorised actuation has a hand controller

on a coiled ﬂex attached to the control box on the chair.

To activate the actuators and tilt the chair, elevate the

legrest or recline the back, depress the appropriate up or

down button for the facility required.

Always warn the client before

making any adjustment to the chair

so that they do not become agitated

or confused.

4c.AutoTilt Facility

The Pro-Control and fully motorised HydroFlex chairs

are available with an AutoTilt facility. This has been

developed to enhance the pressure management already

found in the HydroFlex and to make more efﬁcient use

of the nursing care and time needed to achieve good

pressure care.

The AutoTilt reduces the amount of carer input by

automatically adjusting the chair at timed intervals. Every

45 seconds micro-processors move the HydroFlex through

0.5° of Tilt-in-Space in order to continually re-focus the

pressure points on the body. The AutoTilt starts at any

position through the tilt cycle. Once activated the chair

will tilt backwards to the maximum tilt position before

tilting forwards to approximately halfway through the tilt

cycle. The chair will not come fully upright during the

AutoTilt cycle but will change direction to tilt backwards

from the halfway point. A full AutoTilt cycle lasts 16

minutes.

The AutoTilt will repeat this cycle for either one or eight

hours, ensuring optimal pressure care for those that

need it most.

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4d.AutoTilt in Use

AutoTilt chairs are ﬁtted with an eight button handset.

For Pro-Control versions, the buttons indicating Back

Angle Recline adjustment (3rd row) do not function.

By depressing the bottom left button the one hour

AutoTilt cycle will begin. Pressing the bottom right button

activates the eight hour cycle. If the chair is fully upright

it will begin to tilt backwards at the intervals described

above.

Pressing any of the function buttons on the handset will

interrupt and stop the AutoTilt cycle.

The HydroFlex AutoTilt control box is charged directly

from the supplied 24V charger. There is a small jack

socket on the back edge of the control box where the

supplied 24V charger needs to be ﬁtted.

The control box has a safety cut out to stop the batteries

being fully discharged. Once the working load voltage

drops below 21V the unit will not work. Put the chair

on charge for twelve hours and do not operate the chair

when it is on charge.

The TiS motor makes a small beeping noise when it

moves. This is a harmonic resonance caused by the soft

start program used to reduce the amount of ‘bounce’ in

the movement of the AutoTilt.

The control box has been programmed to ‘back off’ at

the minimum and maximum strokes of the motors and

if the motors sense an overload, e.g. if the legrest was

elevated against a wall. If the motors automatically ‘back

off’, release the button being depressed on the handset

and press the opposing button to re-set the unit.

4e. AutoTilt Battery Charging

Connect the charger to the socket on the back

edge of the AutoTilt control box.

8 button handset for all HydroFlex AutoTilt chairs.

NB: 3rd row of buttons are not used on Pro-

Control chairs.

Transfer arm tilted back to give access for side

transfer.

Undo the locking wheel to release the transfer arm.

5. Options and Accessories

5a.Transfer Arm

The transfer arm option makes side transfer easier, either

from a bed or wheelchair. The arm can be tilted up and

back to give clear access to the seat.

The transfer arm should only be used when the seat is

fully upright. A locking wheel beneath the front outside

edge of the arm cushion locks the transfer arm in place.

Undo the wheel by a couple of turns and lift the arm up

from the front. As soon as the front of the arm lifts up

it can be slid back and pivoted so that it hangs down

at the back of the chair.

Once the client has transferred to or from the chair, the

arm can be tilted and pushed forward so that it re-

engages with the lock at the front of the chair.

Tighten the locking wheel to lock the arm in position.

Do not grab or attempt to support

weight on the transfer arm once

it has been put into the transfer

position.

5b. Pelvic Straps

Please note, pelvic straps :

• Are an aid to maintaining a good posture and client safety.

• Must not be used as restraints.

• Must be adjusted to comfortably support the user and not restrict body function or cause discomfort.

• A client must be supervised by suitably trained personnel at all times if

they are using a pelvic strap.

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InLine headrest.

5d. Headrest Types

The Proﬁled Soft Headrest is a simple pillow of soft

material which will conform to the shape of the client’s

head but which will provide limited lateral control.

The CareFlex InLine headrest provides full cranial support

beneath the occiput and above the ears. This headrest

incorporates memory foam to help reduce incidences of

pressure problems on the ears, cheeks, lower jaw and side

of the head. The InLine headrest is intended to support

the head and neck in a neutral position to help the

client swallow and manage saliva.

Proﬁled soft pillow headrest.

5e. Headrest Set-Up

The set up of the proﬁled soft headrest comes down to

client comfort. The bottom points of the headrest can be

positioned over the clients shoulders to provide additional

side support.

The InLine Headrest should be set up so that the bottom

edge of the headrest is level with the top of the client’s

shoulders.

The wings of the chair back can be adjusted to

provide greater lateral support for the headrest.

See the earlier instructions for guidance.

Height is controlled by straps coming off the top edge

of the headrest and attaching to velcro closures on

the back of the back cushion cover. The height of the

headrest should be set to provide comfortable support.

Try not to push the client’s head forward or allow it to

tip back as this will affect the client’s ability to swallow

and will cause discomfort.

5f. Headrest Positioning-

Loose Cover

Pelvic strap with sub-ASIS pads.

Pelvic strap with buckle adjusting from both sides.

5b. Pelvic Straps

The two parts of the buckle on the straps click together.

To release the buckle, press the tabs on the sides of the

buckle and pull the two halves apart.

A pelvic strap is attached to the seat depth frame of

the HydroFlex behind the seat cushion. The strap is

ﬁtted through the gap between back cushion and the

chair arms and across the client’s hips at a 45° angle.

This strap position is intended to keep the pelvis in an

upright position by pulling the user as far back into

the seat as possible. It is essential that the strap is

always correctly adjusted. Regularly check the tension of

the strap so that the client is correctly supported and

cannot wriggle beneath, or otherwise become trapped

by the strap.

The buckle on the strap is adjustable from both sides

which helps to keep the buckle located centrally. To

tension the pelvic strap, pull the loose ends of the

webbing straps coming from the buckles.

The pelvic strap with sub-ASIS pads should be used if the

client is sensitive to pressure across the bony ridges on

the front of their pelvis.

4-point pelvic strap.

5c. 4-point Pelvic Strap

The 4-point pelvic strap offers greater stability as

secondary straps keep the strap at the correct height

across the pelvis. The secondary straps come down over

the sides of the thigh and attach to the underside of the

seat. The secondary straps have individual adjustment to

help keep the main strap positioned at the correct height.

Once the main strap is correctly positioned the secondary

straps should be tensioned to prevent the main strap

moving upwards. To adjust the secondary straps, pull

the loose ends of the webbing straps ﬁtted through the

ladder lock buckles.

UI HydroFlex. iss4 01/11 UI HydroFlex. iss4 01/11

5h.Adjustable Laterals

The turn buckles hold the headrest straps in place

on the ﬁxed cover version of the chair.

On the ﬁxed cover version of the HydroFlex, the headrest

is positioned on ‘turn buckles’. These are ﬁttings attached

to the back of the headboard over which eyelets in the

headrest strap are hooked.

Turn the buckles so that they are lined up vertically to

un-hook the eyelets and adjust the strap. Fit the eyelets

back on to the turn-buckles so that the headrest is held

at the appropriate height and turn the buckles through

a quater turn to hold the straps in place.

The adjustable laterals should be used to counter any

tendency for a client to lean to one side. They are not

suitable for more active clients who are able to manage

their own posture or who tend to rock backwards and

forwards or who are ataxic.

Two types of pad are available for the HydroFlex

adjustable lateral system.; regular pads and kidney pads.

The regular pads have a regular, deep ‘D’ with an angled

face at the back to ﬁt around the chest to provide a

large support area. The regular pads can be ﬁtted either

side of the chair.

Kidney pads come as a left and right hand pair. These

have a tear drop proﬁle and a larger, angled contact

surface which gives less prescriptive support. To discern

left from right, position the kidney pad laterals as if they

were on a chair. The more pointed end should be towards

the top of the pad with the rounded end indicating the

bottom of the pad.

The adjustable laterals can be adjusted up and down and

in and out to provide the necessary support. They adjust

individually and so can be set up to suit an asymmetric

posture such as scoliosis.

5g. Headrest Positioning-

Fixed Cover

Lateral supports are intended

to provide ﬁrm support for the

client’s trunk.They may not be

appropriate for those clients

who are susceptible to pressure

damage around their ribs. If

the client is susceptible to

pressure damage the laterally

contoured back option may be

more appropriate.

Kidney pad adjustable laterals, more pointed end

upwards to make a handed pair.

left

right

Lateral supports are usually adjusted so that they are

supporting the client’s thorax (upper chest). The laterals

must be adjusted so that the majority of the lateral is

above the client’s lower rib. There is no point in ﬁtting

the laterals against the sides of the client’s abdomen or

just above their waist as these areas are ﬂexible and

the client will end up leaning over the pad. For comfort

leave a three ﬁnger gap between the top of the lateral

and the client’s armpit.

Before transferring the client into the HydroFlex take a

measurement of the height of any lateral support they

have ﬁtted to a wheelchair or activity chair. Otherwise,

try to measure from seat to mid chest height. The

laterals can then be adjusted to this height prior to

transferring the client to the chair.

Similarly, measure the distance between the lateral

supports on the client’s wheelchair or across their chest

so that the width between the laterals can be set up

before transfer.

To adjust lateral height, pull out the lower knob on the

adjustment block ﬁtted to the back of the chair back.

This knob controls the indexing pin which locks into the

holes in the height adjuster. Raise or lower the lateral

pad to the desired height and release the knob. Push the

lateral down until the indexing pin is felt to lock in place.

Width is controlled by the clamp plate on the adjustment

block. Turn the handwheel on the adjustment block until

the lateral is free to slide sideways. Once in the desired

position tighten the handwheel to lock the pad in place.

If the HydroFlex is to be used without the adjustable

laterals undo the handwheel controlling the width

adjustment and slide the laterals completely out of the

adjustment blocks. Keep the laterals in a safe place for

future use.

Please refer to the later instructions to retro-ﬁt the

Adjustable Lateral System. Turn the handwheel to adjust lateral width and

tighten the handwheel to hold the setting.

Pull out the lower knob to adjust lateral height.

Fit the lateral armature into the adjustment block.

Inhaltsverzeichnis

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