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Aspire™ TF Kit


4seal Classic transfemoral liner provides a secure suspension between the residual limb and the prosthesis. The silicone used is particularly skin-friendly and easy to clean while the Umbrellan fabric is designed to treat phantom pain. Four comfortable and flexible seals secure the liner without constricting tissue.

The liner can be turned inside-out and put on without using alcohol spray, providing more flexibility and independence.

  • Four innovative sealing fins–outstanding fit and reliable adhesion without constriction
  • Easy Glide surface coating–self-lubricating and easy to clean
  • Simple donning and doffing, the liner can be turned inside out or put on without any alcohol spray
  • Orientation line on both the inner and outer surfaces simplifies donning
  • Water-resistant. Suitable for taking a bath, swimming, showering
  • Possible relief or abolition of phantom pain for a better quality of life
  • Tear-resistant
  • Full length TF matrix prevents unrolling of the liner
  • Direct casting is possible - no cling film needed
  • Easy to clean for optimal hygiene


It is a polycentric pneumatic knee joint with a sturdy aluminum frame construction. The Knee is for users with normal demands on walking and an increased safety requirement.

  • Swing Extension/Flexion Resistance can be set independently of each other
  • Adjustable axle geometry
  • High knee flexion angle up to 160°
  • Slim design


  • Aluminum material: lightweight, strong, durable
  • Expulsion valve: auto-expulsion valve with push button for suction release


  • Carbon composite material: good energy storage and return, smoother rollover
  • Sandal toe foot cover: better cosmesis
  • Dust shield: protects foot, increases durability
  • 80mm low build height: suitable for most amputation lengths
  • 660g lightweight design: decreases energy consumption
  • Soft or stiff heel firmness: suitable for different user body weights and activity levels
Patient Profile
Amputation Level: Transfemoral
Impact Level: Moderate to High
Maximum Patient Weight: 100kg
Product Information
Build Height (Knee Center to Floor): 290 - 470mm
Liner Information
Size Standard: 26.5, 28, 30, 32, 34, 36, 38, 40, 45, 50
Size Conical: 25, 26.5, 28, 30, 32, 34, 36, 38, 40
Matrix: Full Length
Knee Information
Build Height: 190mm
Weight of Knee: 650g
Flexion: 160°
Foot Information
Stiffness: Soft or Firm
Sizes: 22-28
Weight of Foot: (Size 27) 660g w/ Pyramid and Foot Cover
Build Height: (Size 27) 80mm w/ Pyramid and Foot Cover
Heel Height: 10mm
Adapter Options: Fixed Male Pyramid

Kit Ordering Information

M891□XX* 4seal Classic Liner
ATFLxyyz** Aspire TF Leg

Completion Item No.:□=7(Standard) □=8(Conical)

Aspire TF Leg Includes:
·TF valve
·3-Prong Socket Adapter
·Female Pyramid Insert For Prong
·Female Pylone, Foot Module with Male Pyramid
·Foot Cover Kit

* xx: Size 26-50(Standard), Size 25-40(Conical)
** x: S (soft) or F (firm) / yy: size 22-28 / z: R (right) or L (left)

Please specify when ordering brown covers, add “BR” to the end of the part number.