General Information - Össur 4SEAL TF Technical Manual

ENGLISH
4SEAL TF
Thank you for choosing the 4Seal TF liner. This product provides thigh-amputated users with maximum adhesion
in the prosthesis shaft, and the Easy Glide Plus coating ensures a high level of comfort when putting it on or taking
it off. The 4Seal TF is equipped with 4 sealing lips. Össur TF liners have a unique combination of product features
that provide optimum protection of the soft tissue and a high degree of wearing comfort.
The use of the Össur Liner provides users with a substantial improvement in dealing with the prosthesis. When it
is worn, a Össur Liner has a decongesting effect: blood circulation in the residual limb is improved, making it
firmer. Any existing scars on the residual limb become softer and shallower over time. Due to the closed surface of
the silicone and the Easy Glide Plus coating, simple, hygienic cleaning is possible. Before using the Össur Liner
system, check whether the user is suitable for care with a silicone liner.

GENERAL INFORMATION

Making certain that the sealing lips are correctly and appropriately applied to the inner shaft surface is particularly
important for the fit and for ensuring that there is a vacuum in the shaft. Special attention should be paid to
selecting the size of the liner, to shaping the model in the area of the sealing lips, and to designing the inner
surface of the shaft.
General indications of the Össur Liner
• holding function
• securing the prosthesis
• proprioceptive feedback
• reduction of shear forces in the shaft
• significant relief in dealing with the prosthesis
• prevention of edemas in the residual limb
• promotion of venous blood return
• can be put on while sitting
• holds soft tissues for easy entry into the prosthesis
• also suitable in the case of skin problems or pressure-sensitive residual limbs due to use of silicone that cares
for and protects the skin
• easy to put on without auxiliary aids and/or sprays
• hygienic cleaning possible
Additional indications 4Seal TF liner with Umbrellan
• phantom pain
• phantom sensations
• idiopathic residual limb pain
General contraindications
• skin necrosis
• poor physical condition of the user and/or no assistant available
• uncovered wounds
• very soft skin (e.g. children less than 3 years old)
• fresh skin grafts (less than 4 weeks from the establishment of the skin graft and prior to epithelialization)
• extremely deep scars in the residual limb (e.g. obese patients)
• instable residual limb volume
• very short residual limb
Please refer to the table below for the recommended minimum length:
4