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NPS sockets provide superior
interface with skin and tissue.

  
 
Figure A (conventional sockets on skin)
Figure A (conventional sockets on skin)
 
Figure B (NPS Sockets on skin)
Figure B (NPS Sockets on skin)
 
Studies have shown that conventional methods of interfacing residual limbs with prosthetic devices (figure A) decrease blood flow and oxygenation of tissue, cause blisters, traps perspiration, and causes sores and abrasions. The NPS Socket promotes healthier skin and more comfort.
  NPS Sockets  

Negative Pressure Suspension (NPS) Socket Technology – For ALL Levels of Amputation.

Discover the applications and benefits of elevated negative pressure (vacuum) in prosthetic socket designs for BK, AK, hip and bilateral amputees. The POA NPS Socket System was developed by certified prosthetist and POA president, Stan Patterson, to solve many of the problems associated with conventional sockets.
 
POA provides service and support for the NPS System:
  • Patented Vacuum Chamber System (less weight and moving parts, healthier skin, more intimate fit, less volume change throughout the day) incorporated into AK, BK, Hip Disarticulate and Hemi-Pelvectomy sockets.
  • Proven results with AK systems including lower trim lines and unique alignment techniques  which allow for a more natural gait.
  • Successfully fit over 30 Vacuum Hip Disarticulate sockets in the past year including many soldiers from Walter Reed Army Medical Center.
  • R & D Center dedicated to improving technology and finding solutions for hard-to-fit patients.
  • Intense Gait and Activity Training specialized to Your Needs!
 
Negative Pressure Suspension provides remarkable benefits for the Transfemoral Amputee:
Negative Pressure Suspension, Transfemoral Amputee
  • Reduces pistoning and limb movement.
  • Maintains limb volume throughout the day.
  • Increases blood flow and oxygenation of tissue.
  • Decreases skin abrasions, blisters, and friction.
  • Permits evaporation of perspiration.
  • Allows for lower trim lines.
  • More adaptable to weight gain/loss.
  • Increases comfort, control, and proprioception.
  • Light-weight; no moving parts.
 

Video Demonstrations: "Donning the NPS socket" (recorded by our associates in Irvine, CA):

  
 Above-Knee Socket:
The socket may be donned in a seated or standing position, whichever is most comfortable for you. Also, the amount and location of ointment will be specific to each patient.
 
 
Below-Knee Socket:
 
 
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