This is presentation for renasys NPWTThis is presentation for renasys NPWT This is presentation for renasys NPWT This is presentation for renasys NPWT This is presentation for renasys NPWT This is presentation for renasys NPWT This is presentation for renasys NPWT This is presentation for renasys NPWT
3. Modern wound dressings
• Most modern wound dressings aid the wound bed to
achieve an optimum wound-healing state.
• They generally fall into one of four basic categories:
1. Moisture-giving: These dressings donate moisture to the wound
bed. This is usually to aid autolytic debridement of sloughy or
necrotic tissue, or to provide moisture to a dry wound bed
2. Moisture-absorbing: These dressings absorb excess exudate, to
provide a moist rather than a wet wound bed
3. Wound contact layers: These dressings provide a non-adherent
layer for wounds with low exudate
4. Interactive: These dressings include those containing
antiseptic/antibacterial agents
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4. What is Negative Pressure Wound
Therapy?
•NPWT does not fit neatly into any of these basic categories
•Rather than being a wound dressing, it is an active wound therapy
•NPWT is a topical treatment used to promote healing
in acute, sub-acute and chronic wounds by applying
negative pressure to the wound bed or closed incision
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5. NPWT
• Negative pressure wound therapy (NPWT) has
become widely adopted over the last 15 years.
• There are over 1000 peer-reviewed publications
describing the clinical efficacy and safety of NPWT for
all wound types that have been published over this
period
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6. •Definition: Controlled sub
atmospheric pressure in a sealed
system that may promote wound
healing
•Achieved by:
•Method to deliver pressure and
remove exudate – RENASYS™ Soft
Port
•Exudate collected in a canister
•Wound filler to distribute pressure –
Foam or Gauze
•Transparent film to achieve seal
•Vacuum source (device) for delivery
of negative pressure – RENASYS
device
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7. Mode of Action - Why does NPWT
work?
Protects against
wound contamination and
infection
2
Increased
granulation tissue
growth
3
More local
blood flow
4
Less
oedema
5
Control of fluids
to maintain a
moist wound
environment
2
Protects the wound
from external
contamination1
Improves wound
contraction and
promotes growth of
granulation tissue5-8
Effectively
manages
wound
exudate2-4
Helps to
improve
perfusion5
Helps reduce
tissue
oedema9
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8. Mode of Action
• Control of fluid and reduction of oedema
• A pressure gradient is achieved by creating a closed system
and applying sub atmospheric pressure to the wound i.e.
negative pressure which “pulls” fluid, materials and cells from
the wound bed.
• Effect:
• Removal of surface wound fluid containing pro-inflammatory
mediators such as MMPs, cytokines, proteases and oxygen
free radicals
• Removal of fluid from within the tissues below the wound
surface i.e. reduction of oedema or interstitial fluid
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9. Mode of Action
• Improved local blood flow
• Wound healing requires increased levels of oxygen and
nutrients. Blood flow to the wound bed and surrounding
tissue may be decreased due to pressure on the
capillaries from inflammation and oedema
• Effect:
• The negative pressure gradient decreases oedema which
decreases the direct pressure on the capillaries allowing
for improved blood flow
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10. Mode of Action
• Mechanical forces
• Specific cells respond to mechanical stretching with an
increase in proliferation and migration
• Effect:
• The exact effects of mechanical stretching requires further
research
• Negative pressure pulls the wound margins together and
reduces the wound volume, this may also assist with improved
granulation tissue formation
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11. Mode of Action
• Granulation tissue formation
• Granulation tissue is dependent on new capillary growth
and deposition of connective tissue
• Effect:
• Each MOA is essential for healing and the combined
effects create a wound environment favorable for new
tissue formation
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12. Mode of Action
• Protects against external contamination
and infection
• Wound fluid is an excellent medium for bacterial growth.
Increased levels of bacteria contribute to delayed and
impaired healing in both acute and chronic wounds
• Effect:
•Removal of wound fluid also removes bacteria from the surface of the
wound
•Increased blood flow provides higher nutrient and oxygen levels to the
wound
•Film dressing provides barrier to environmental contaminants
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13. Mode of Action
• Pressure gradient fluid shift
• Perfusion increased delivery of 02 and nutrients
• Mechanical forces stimulatory effect on cells
• Granulation tissue formation
• Exudate management
Each MOA is essential for healing and the combined
effects create a wound environment favorable for new
tissue formation
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14. Therapeutic benefits of NPWT
• Removes unhealthy tissue/cells and maintains clean
wound bed
• Removes and manages fluid from the wound environment
• Reduces oedema
• Protects against contamination and infection
• Mechanical stretching stimulates cell proliferation and
migration
• Stimulates granulation tissue formation
• Maintains moist wound environment
• Protection of wound environment
• Decreases the frequency of dressing changes
Automated Wound Care
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17. RENASYS™ GO device
• RENASYS GO devices are designed to provide NPWT to a closed
environment over a wound
• The device evacuates the exudate from the wound site into a disposable
container
• NPWT may promote wound healing via removal of fluids, including irrigation
and body fluids, wound exudates and infectious materials
• The RENASYS device is intended for use by or on the direction of a trained
and licensed healthcare professional
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18. RENASYS™ GO overview
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• Vacuum: -40 to -200 mmHg
• The device adjustments can be made in 10mmHg
increments between 40mmHg and 100mmHg
• 20mmHg increments between 100mmHg and
200mmHg
• Dimensions: 175mm x 210mm x 85mm
• Weight: 1.1kg
• Battery Operation: Up to 20 hours
• Battery Operations: Lithium ion
rechargeable
• Charging Time: Approx. 3 hours for 80%
capacity
• Canisters: 300ml and 750ml
19. RENASYS™ GO user interface
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Power button
Front
View
Start/pause
therapy and select
Keypad
lock
Up and down
selectors
Battery status
indicator
Display
screen
Status/alarm
indicator
Audio pause
Canister
20. Inlet Connector and “O”
ring
Canister clips
Shoulder
Strap Side View
AC mains power
inlet
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22. RENASYS™ GO canister selection
and installation
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RENASYS GO is designed to be used with the RENASYS GO 300ml or
750ml canisters.
300ml Canister 750ml Canister
24. Dressing kit contents and sizes
• Dressing kit contents;
• RENASYS™ foam
• RENASYS Soft Port
• Transparent film
• Available dressing kit sizes;
• Small
• Medium
• Large
• X-large
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25. Dress wound with foam
• Cut the foam dressing to fit
the size and shape of the
wound and place the cut
foam into the wound. Avoid
over packing. Foam should
completely fill the wound
• Do not cut the foam
directly over the wound
bed and after cutting brush
to the sides to dislodge any
fragments
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26. Apply transparent adhesive film
• While holding the
transparent film, expose
one side of the adhesive
backing by removing a
single panel, and apply
over the wound
• Cover the wound filler with
transparent adhesive film,
removing the remaining
panels to seal, then the
top stabilisation panel
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27. Apply the RENASYS™ Soft Port
• Cut a circular opening (no
less than 2cm/0.97” in
diameter) in the centre of
the film, over the wound
filler
• Remove any loose
transparent film and
dispose of away from the
wound
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28. Apply the RENASYS™ Soft Port
• Remove the adhesive
panel from the RENASYS
Soft Port dressing and
align the port opening
directly over the hole in
the transparent film
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29. Apply the RENASYS™ Soft Port
• Use gentle pressure to
anchor the Soft Port to the
transparent film
• Smooth the dressing down
while removing the
RENASYS Soft Port’s top
stabilisation frame
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30. Activate the RENASYS™ device
• Connect the RENASYS Soft
Port to the canister tubing by
pushing the quick click
connectors together
• An audible click indicates the
connection is secure
• Activate the RENASYS device,
adjust to the prescribed therapy
level
• The finished dressing should be
firm to the touch and leak-free
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