Medela Invia Mode D'emploi page 6

– Make sure the OCL is not cut too small.
– The OCL must completely cover all exposed viscera, prior to application of wound filler and
subsequent activation of the Invia Liberty NPWT system.
Foam placement:
– Do not tear or cut the foam above the abdominal cavity. Remove any fragments from the
foam edges to protect the abdominal cavity from loose foam particles.
– I nsufficient filling may cause leakage of fluids onto surrounding skin. Use additional foam if
necessary.
– Make sure that the foam does not come into contact with viscera or surrounding skin
– Do not place any foam dressing pieces into blind/unexplored tunnels.
– Always count the total number of pieces of foam used in the wound and document that
number on the transparent film and in the patient's chart.
– Fixation of the foam (sutures, staples etc) may cause foam particles to enter the abdominal
cavity and/or the margins of the abdominal cavity.
Film application:
– Stretching the film during application may cause the film to loosen when negative pressure
is applied.
Intra-abdominal pressure monitoring:
– Frequent, standardized measurements of intra-abdominal pressure (IAP) and/or abdominal
perfusion pressure (APP) are recommended before, during and after treatment with Invia ab-
dominal NPWT. If intra-abdominal hypertension (IAH) is observed or suspected, turn off
power to the NPWT system. After full expansion of the foam, obtain a new intra-abdominal
pressure measurement.
– If IAH persists, discontinue the use of NPWT and address the underlying condition.
Bleeding:
– With or without using therapy, certain patients are at high risk of bleeding complications.
Patients with abdominal wounds must be closely monitored for bleeding as these
wounds may contain hidden blood vessels which may not be readily apparent.
– Hemostasis must be achieved prior to dressing placement.
The following types of patients are at an increased risk of bleeding, which, if uncontrolled,
could be potentially fatal:
– Patients who have weakened or friable blood vessels or visceral organs in the abdominal
wound as a result of, but not limited to:
– Suturing of the blood vessel (native anastomosis or grafts)/organ
– Infection
– Trauma
– Radiation
– Patients without adequate wound hemostasis
– Patients who have been administered anticoagulants or platelet aggregation inhibitors
– Patients who do not have adequate tissue coverage over vascular structures
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