INVACARE Matrx Libra Cushion User Manual

October 30, 2023
INVACARE

Matrix Libra Cushion
User ManualINVACARE Matrx Libra Cushion - Featured
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Invacare® Matrix® Libra®

Matrix Libra Cushion

This manual MUST be given to the user of the product.
BEFORE using this product, this manual MUST be read and saved for future reference.

General

1.1 Introduction
This user manual contains important information about the handling of the product. To ensure safety when using the product, read the user manual carefully and follow the safety instructions.
Invacare reserves the right to alter product specifications without further notice.
Before reading this document, make sure you have the latest version. You find the latest version as a PDF on the Invacare website.
If you find that the font size in the printed document is difficult to read, you can download the PDF version from the website. The PDF can then be scaled on screen to a font size that is more comfortable for you.
In case of a serious incident with the product, you should inform the manufacturer and the competent authority in your country.

1.2 Compliance
Quality is fundamental to the company’s operation, working within the disciplines of ISO 13485.
This product features the CE mark, in compliance with the Medical Device Regulation 2017/745 Class I.
This product features the UKCA mark, in compliance with Part II UK MDR 2002 (as amended) Class I.
We are continuously working towards ensuring that the company’s impact on the environment, locally and globally, is reduced to a minimum.
We only use REACH compliant materials and components.
1.3 Service Life
The expected service life of this product is three years when used daily and in accordance with the safety instructions, maintenance intervals and correct use, stated in this manual. The effective service life can vary according to frequency and intensity of use.
1.4 Warranty Information
We provide a manufacturer’s warranty for the product in accordance with our General Terms and Conditions of Business in the respective countries. Warranty claims can only be made through the provider from whom the product was obtained.

1.5 Limitation of Liability
Invacare accepts no liability for damage arising from:

  • Non-compliance with the user manual
  • Incorrect use
  • Natural wear and tear
  • Incorrect assembly or set-up by the purchaser or a third party
  • Technical modifications
  • Unauthorized modifications and/or use of unsuitable spare parts

Safety

2.1 General Safety Information
Education, clinical judgement and action-based planning based on vulnerability are fundamental factors in prevention of pressure injuries.
A range of assessment scales can be used as a formal method of assessing risk from pressure injury development, and should be used in conjunction with an informal assessment (informed nursing judgement). Informal assessment is considered to be of greater importance and clinical value.

WARNING!
Risk of Serious Injury or Damage
Improper use of this product may cause injury or damage.
– If you are unable to understand the warnings, cautions or instructions, contact a health care professional or provider before attempting to use this equipment.
– Do not use this product or any available optional equipment without first completely reading and understanding these instructions and any additional instructional material such as user manual, service manual or instruction sheet supplied with this product or  optional equipment.

WARNING!
Risk of Developing Pressure Injuries
Any object between the user and the pressure reducing surface may result in the development of pressure injuries.
– Make sure that the support surface in contact with the user is kept free from crumbs and other food debris.
– Drip cables and other foreign objects must not become trapped between the user and the pressure reducing surface.

CAUTION!
Risk of Injury or Damage to Property
– Before use, check the product for any defect.
– Do not use a defective product.

2.2 Safety Information for Transport

  • Take care when handling the product to avoid any damage.
  • Avoid contact with jeweler, nails, abrasive surfaces etc.
  • Avoid contact with walls, door frames, door catches or locks etc.
  • Do not transport in roll cages unless completely protected from the sharp edges of the cage.

Product Overview

3.1 Product Description

The Invacare Matrix Libra cushion A consists of following components:

B HR foam base
C Dual-layer clinical fluid sac (silicone)
D Inner Platicon liner
E Outer cover
Hook and loop adapter (not shown)

The best way to avoid problems related to pressure sores is to understand their causes and your role in a skin management program. Your therapist and physician should be consulted if you have questions regarding individual limitations and needs. All cushions  should be selected carefully. Working with your therapist and physician is the best way to ensure that a cushion choice matches your individual needs. As the needs of the individual become more complex, cushion evaluation becomes more important.
The cushion A uses a combination of a molded foam base B and dual layer clinical fluid sac C to provide the highest level of skin protection for users with very high risk of skin breakdown.

Clinical Fluid Sac
The clinical fluid sac utilizes silicone in a unique dual-layer design placed in the ischial/sacral areas to help prevent bottoming out.
Inner Liner and Outer Cover
The inner liner D is moisture resistant to protect the foam. The standard outer cover E is water resistant and breathable. Regular cleaning and inspection of the covers is recommended, see 7 Maintenance, page 5 .

3.2 Intended Use
This cushion is intended to be used in an armchair or wheelchair as part of an overall pressure injury prevention program of care.
Intended Users
Libra cushions can be used for users who need pelvic stability and who are at a very high risk of developing pressure ulcers.
Indications
Through the use of modular components, it is also suitable to address users with complex seating needs — e.g. fixed or flexible postural asymmetries – allowing the creation of a custom cushion.
Contra-indications
Within the maximum user weight limits that are set assuming that the cushion selected is of appropriate width and depth for the intended user and well fitted the device that the user is sitting on.
If stored in a cool area, the cushion to warm up to room temperature.
Well fitted with the seat where it is going to be placed and that the seat/ wheelchair is individual adjusted.

3.3 Symbols on the Product

| European Conformity| | Medical Device
---|---|---|---
| Manufacturer| ****| UK Conformity Assessed
| European representative| | Date of manufacture
| Lot number| | Read user manual
| Maximum user weight|  |
| Machine wash (maximum temperature see label)| | Tumble dry low heat
| Do not iron| | Do not dry clean
| Do not bleach| | Avoid burning cigarette
| Do not put near flame| | Do not pierce or cut
| Orientation label (depending on product)

Accessories / Options

4.1 Installing Accessories
Optional Matrix Libra accessories are available separately and allow the cushion to be adjusted where necessary to meet the specific positioning needs of the end user.

INVACARE Matrx Libra Cushion - Accessories

F Standard pommel
G Clinical Fluid Sac
H Lateral wedges
I Cut to size front wedge (J)
J Front wedge
K Side wedge
L Side wedge

Installing Abductor Support — Standard pommel

INVACARE Matrx Libra Cushion - Standard pommel

  1. Remove the outer cover and inner liner.
  2. Align the hook strip M on the abductor support F with the loop N strip on the top of the foam base B at the desired depth.
  3. Press down to secure the abductor support to the foam base.
  4. Re-install the inner liner and outer cover.

Installing Clinical Fluid Sac

INVACARE Matrx Libra Cushion - Clinical Fluid

  1. Remove outer cover and inner liner and unfasten the hook and loop strips from the side and/or rear of the clinical fluid sac C where you wish to install the clinical fluid supplement sac(s) G.
  2. Locate the small pocket/slot O on the underside of the clinical fluid sac.
  3. Install the clinical fluid supplement sac(s) inside the slot/pocket and adjust the clinical fluid supplement sac(s) to the desired position inside the clinical fluid sac.
  4. Refasten the clinical fluid sac hook and loop strips and re-install the inner liner and outer cover.

Installing Wedges

INVACARE Matrx Libra Cushion - Installing Wedges

Foam wedges can be trimmed to size as needed.

  1. Remove the outer cover and inner liner and position the wedge(s) in the desired position on the underside of the foam base B as shown:
    • Lateral wedge H
    • Front wedge J and cut to size front wedge I
    • Side wedge K (side wedge Lis not shown)

  2. Using the hook and loop strips, secure wedge(s) to the underside of the foam base.

  3. Re-install the inner liner and outer cover.

4.2 Trimming Accessories and/or Foam Base
Components can be trimmed to provide tailored, individual solutions for the end user. The front and lateral wedges require trimming to fit the foam base. Use a cutter or scissors to trim these accessories.

CAUTION!
Risk of cutting!
– Take care when using a cutter or scissors.

INVACARE Matrx Libra Cushion - Foam Base

Trim base of cushion to accommodate leg length discrepancies, limited joint movement and/or contractures.

Setup

5.1 Installing the cushion

  1. Position the cushion so the material identification tags (not shown) face the rear.

  2. Align the hook and loop strips (not shown) on the bottom of the cushion with those on the wheelchair seat.
    If your wheelchair seat has loop strips, use the enclosed hook adapters to secure the cushion to the wheelchair seat.

  3. Position the cushion onto the wheelchair as far back as possible.

  4. Press down to ensure the hook and loop strips are firmly engaged.

Usage

6.1 Safety information
WARNING!
Invacare advise that the patient is assessed by a trained healthcare professional to ensure the correct size and seating requirements. This is to achieve the best pressure and postural care and that position for the individuals needs are met. – Always consult a healthcare professional before using the product.

WARNING!
It is very important for the patient to reposition themselves, or to be repositioned, on a regular basis. This relieves pressure which helps prevent both tissue compression and potential pressure injury formation.
Skin redness is one clinical indicator for skin breakdown.
– Regularly inspect/monitor if your skin develops any redness.
– Immediately contact a healthcare professional, if your skin develops redness.

NOTICE!
Accidental cover damage allows fluid ingress and staining.
– Do not place sharp objects on the cover.
– When using patient transfer aids, ensure not to damage the cover. Check for sharp edges or burrs before use.
– Ensure the product is not jammed or damaged by sharp edges when used on wheelchairs.
– Avoid burning cigarettes or open flames near the product.
– If pets are around, ensure that no claws puncture the cover.

NOTICE!
The water resistant cover allows fluids to roll off the surface, however with sustained periods of fluid contact the cover may absorb moisture.
– Wipe away any fluid as soon as it is identified.

6.2 Using Cushion

  1. Remove all packaging before use.
  2. Place cushion on wheelchair or chair with grey anti-slip base facing down.
  3. Ensure that cushion is placed in coordination with orientation label, located on left hand side of cushion.

Maintenance

7.1 General Maintenance Information
WARNING!
Risk of Injury
– Maintenance should be done at least once a year.
– Do not use a defective product.
– Do not attempt repairs yourself. For repairs contact your provider.

7.2 Inspection
Check cushion (foam and cover) for strike-through (this may include fluid ingress, stains, rips or damage) after the use of each patient and on a minimum monthly basis (depending on which occurs first) by a suitably qualified and competent person.

Check cushions

  1. Unzip the cover completely.
  2. Check for any staining on the interior foam.
  3. Replace any damaged cover or stained foam and dispose of as per local authority procedure.

7.3 Cleaning and Disinfection
General Safety Information

CAUTION!
Risk of Contamination
– Take precautions for yourself and use appropriate protective equipment.
NOTICE!
Wrong fluids or methods can harm or damage the product.
– All cleaning agents and disinfectants used must be effective, compatible with one another and must protect the materials they are used to clean.
– Never use corrosive fluids (alkaline, acid etc.), abrasive cleaning agents or solvents (cellulose thinner, acetone etc.). We recommend a mild detergent.
– Always make sure that the product is completely dried before taking it into use again.

** For cleaning and disinfection in clinical or long-term care environments, follow your in-house procedures.
Cleaning Intervals
NOTICE!**
Regular cleaning and disinfection enhance smooth operation, increases the service life and prevents contamination.
Clean and disinfect the product:
– regularly while in use,
– before and after any service procedure,
– when it has been in contact with any body fluids,
– before using it for a new user.

Cleaning Instructions
Cleaning Covers
(Removal of contaminants such as dust and organic matter)

  1. Remove cover for laundering.
  2. Launder the cover with maximum temperature as stated on product label, using a diluted detergent solution (Instructions on label).

NOTICE!
Washing at higher temperatures will cause  shrinkage.

Drying Covers
1. Hang cover from a line or bar and drip dry in a clean indoor environment.
or
Tumble dry on a low temperature.
NOTICE!
– Tumble dry setting must not exceed 40 °C.
– Do not tumble dry for longer than 10 minutes.
– Dry thoroughly before use.
Disinfection Instructions
NOTICE!
– Only use disinfectants and methods approved by your local infection control institution and follow your local infection control policy.

Disinfecting cover
(Reducing the number of microorganisms)
NOTICE!
Failure in disinfection process may result in the accumulation of reagent that could damage the polyurethane coating, react with the frame, or negate the biocompatibility results.
– Ensure that all cleaning agents, and disinfectants, are thoroughly rinsed off.
– Dry thoroughly before use.

  1. Wipe down the cover with a suitable detergent.
  2. Rinse the cover thoroughly with clean water using a single use nonabrasive cloth.
  3. Dry the cover thoroughly.

NOTICE!
Heavy Spoilage
When badly soiled, we recommend cleaning with a diluted detergent solution at maximum temperature in the washing machine.
– Clean up all spillages of bodily fluids i.e. blood, urine, faces, sputum, wound exudate and all other bodily secretions as soon as possible using a suitable detergent.
– Large spillages of blood should be absorbed and removed with paper towels first, followed by as above.

Replacing Cover

  1. Unzip the cover and remove it carefully from the foam core.

  2. Place new cover onto the foam core.
    Ensure that the corners of the foam core are positioned correctly into the corners of the cover.

  3. Close the zipper. Where ever possible ensure the slider / sliders are positioned at the rear of the cushion.

WARNING!
– In event of contamination, contact your hygiene specialist.
– Remove contaminated foams from use.

After Use

8.1 Storage

  • Store the product in a dry environment.
  • Store the product within a protective cover.
  • Store the product on a clean, dry surface free from sharp edges to avoid any possible damage.
  • Never store other items on top of the product.
  • Do not store the product next to radiators or other heating devices.
  • Protect the product from direct sunlight.

8.2 Disposal
Be environmentally responsible and recycle this product through your recycling facility at its end of life.
Disassemble the product and its components, so the different materials can be separated and recycled individually.
The disposal and recycling of used products and packaging must comply with the laws and regulations for waste handling in each country. Contact your local waste management company for information.

Technical Data

9.1 General data

Product Matrix Libra
Total height [mm] • 89
Total width [mm] • 360 – 560
Total depth [mm] • 310 – 560
Maximum user weight [kg] • 136 (for total widths from 360 to 510 mm)

• 227 (for total widths from 530 to 560 mm)
Minimum user weight [kg]| • 136 (for total widths from 360 to 510 mm)
Weight of product [kg]1)| • 227 (for total widths from 530 to 560 mm)

  1. Weights can vary depending on size of cushion ordered.
    Size charts and local requirements / certification available upon request from Invacare.

9.2 Materials

Foam cushion High resilient Polyurethane foam
Foam base Loop raised nylon and polyester foam
Clinical fluid sac Polyether based thermoplastic polyurethane film
Clinical fluid Silicone gel
Inner liner Polyurethane ether film
Standard outer cover Knitted polyamide, coated with an anti-microbial

polyurethane coating. Substrate treated with a
fluorocarbon to give water/stain resistance.
Spacer cover| 100 % knitted polyester
Outer cover anti-slip base| Medical PVC coated polyester fabric
Backing loop| Polyester
Hook base and hook| Polyamide

All product components do not contain natural rubber latex.

United Kingdom & Ireland:
Invacare Limited
Penciled Technology Park, Penciled
Bridgend CF35 5AQ
Tel: (44) (0) 1656 776 200
[email protected]
www.invacare.co.uk

Invacare UK Operations Limited
Penciled Technology Park, Penciled
Bridgend CF35 5AQ UK
Invacare Portugal, Lad
Rue Estrada Vela 949
4465-784 Lea do Baliol
Portugal
Making Life’s Experiences Possible®

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