Invia® Liberty™ Negative Pressure Wound Therapy System
Invia® Liberty™ Negative Pressure Wound Therapy System is a proven and versatile reusable NPWT system designed to treat a variety of wound types in all patient care settings.
• Used in all care settings
• Display screen and downloadable therapy data
• Range of pressure settings and choice of dressings, canister sizes and therapy modes
• Easy to read LCD screen
• Audible and visual notifications with display screen troubleshooting tips, air leak indicator and one touch canister release button
• Quiet operation
• Nighttime mode
• Carrying bag
• Battery/AC operation
The Invia® Liberty™ Negative Pressure Wound Therapy System is indicated for use on diabetic neuropathic ulcers, pressure ulcers, chronic wounds, acute wounds and dehisced wounds.
Contraindicated for patients with: malignancy of the wound, untreated osteomyelitis, unmanaged malnutrition, non-enteric fistulas, unexplored fistulas or necrotic tissue with eschar present. Do not place Invia® Wound Therapy dressing over exposed blood vessels or organs. Do not place directly over anastomoses or sutured vessels.
Refer to Instructions for Use (IFU).
Recommend storing in an available shipping case. Store devices between 15%-93% humidity, -20°C to 50°C (-4°F to 122°F).
|Accommodates large wounds||●|
|Accommodates small wounds||●|
|Antimicrobial interface available||●|
|Portable (under 1lb)|
|Single-use – 10 days|
|Single-use – 15 days|
|Single-use – 30 days|
|Single-use – 7 days|
|Usable on closed wounds|
|Usable on open wounds||●|
|Variable pressure setting|
|Educational Material Available||●|
|Free Samples/Trials Available|
|Published Clinical Article Available||●|
Diabetic Neuropathic Ulcers
Preparation for Use:
Connect the tubing to the pump by inserting the tubing base in the pump. Connect either an 800mL or 300mL canister to the pump. Canister is secure when it "clicks" into place.
Turn the device on. Default pressure setting is -120mmHg in constant therapy mode. To change pressure setting, enter administration mode and press the up/down buttons until the desired pressure setting is displayed on the screen. Press "OK" and "Back" buttons to confirm change. Pump automatically locks after one minute of no button activity.
Power Supply and Battery Management:
A fully charged battery can be expected to deliver therapy for approximately 10 hours. An acoustic signal will sound when there is approximately 30 minutes of battery life left. If the battery is fully empty, it will take approximately four hours to fully charge. It is recommended that the pump remain connected to an AC power source when the patient is not mobile or is resting.
Notifications and Troubleshooting:
Liberty has six primary acoustic and visual notifications for effective use. Each notification has image and text troubleshooting tips for easy reconciliation.
Liberty is a reusable NPWT system and should be cleaned and disinfected between patient uses.
Instruction video available at www.medela-healthcare.us/healthcare/university/npwt
Caution: Federal US law restricts this device to sale by or on the order of a physician.
Routine dressing changes should occur every 48 to 72 hours. Dressing changes for infected wounds should be considered more frequently.
Dressing (wound contact layer, wound filler, wound cover, drain and External Suction Interface (ESI)) should be changed every 48 to 72 hours, but no less than three times a week, or as instructed by the health care professional.
Change canister when 3/4 or more full or with dressing changes.
For use with both Invia® Gauze Dressing Kits and Foam Dressing Kits.
Consists of metal, plastic, electrical and battery components.
2 years after date of delivery, if used in accordance with the Instructions for Use booklet. The manufacturer is not liable for any damage or consequent damage caused by incorrect operation, inappropriate usage or use by unauthorized persons.
Vacuum range: -40mmHg to -200mmHg; -8kPa to -27kPa
Flow: 5 L/min
Weight: 2.2lb or 1,000g without canister
ISO 9001, 13485
CE (93/42/EEC, IIa)
Max noise level: -42.5 db(A)
Alarm noise level: 78 dB(A)
Operation of device: between 15% and 93% humidity, 5°C-40°C, and 70kPa-106kPa atmospheric pressure
Store/transport device: between 15% and 93% humidity, -20°C-50°C, and 70kPa-106kPa atmospheric pressure
Battery Type: Custom Lithium Battery
Battery Life During Routine Use: Approximately 10 hours
Battery Recharge Time: 4 hours
Medela supplies health care professionals with an innovative portfolio of products and services for negative pressure wound therapy that includes devices, gauze and foam dressing kits, Invia® Silverlon® dressings and accessories.