4-Bar Knee with PSPC

Activity Level 1 2 3
Impact Level

Ideal for long residual limbs this combined polycentric and pneumatic knee offers users geometric stability with dynamic swing phase and low profile proximal build height.


  • Geometrically stable stance phase
  • Pneumatic swing phase control
  • 125° knee flexion
  • Proximal dome socket attachment
  • 35mm distal clamp


Max. user weight: 100kg
Activity level:  1-3
Component weight: 888g
Control unit: Pneumatic



Part Number:

019136 – Slim Four Bar Knee (PSPC) 

This knee has an integral endolite socket connector and requires the socket dome to be shaped appropriately. See below for formers.

Socket Former Kits:

940674 – Std. knee disarticulation laminated
940675 – Small knee disarticulation laminated
940647 – Drape former thermoplastics std. KD.
940639 – Drape former thermoplastics small. KD. 


An annual visual inspection is recommended. Check for visual defects that may affect proper function. Maintenance must be carried out by competent personnel.

Blatchford trademarks.

Last updated: 15th July 2015

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