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Pediatric Videofluoroscopic Seating System

Design Visuals

Final CAD Model

CAD prototype of Easy-PASS Chair, assembled from custom-made parts and parts available from McMaster-Carr.
CAD prototype of Easy-PASS Chair, assembled from custom-made parts and parts available from McMaster-Carr.
CAD model of prototype with dimensions and restrictions of X-ray machine used for swallow studies.
CAD model of prototype with dimensions and restrictions of X-ray machine used for swallow studies.
Shear force and bending moment diagrams for positioning system at its extremes: fully reclined (L) and fully upright (R) while holding a 6 ft, 200 lb male.
Shear force and bending moment diagrams for positioning system at its extremes: fully reclined (L) and fully upright (R) while holding a 6 ft, 200 lbs male.
Back view: adjustable rails and pin-lock system.
Back view: adjustable rails and pin-lock system.
Hinge allows for rotation as hydraulic lift raises/lowers.
Hinge allows for rotation as hydraulic lift raises/lowers.

Early Sketches

Design Prototype

Sketch of first design prototype for positioning/seating system.

 

DESIGN COMPONENTS AND CONSTRAINTS:

  • Easily switches between mobile and static states
  • Topple-resistant
  • Radiotranslucent around head, neck, and upper trunk
  • Accommodates patients with range of motor capabilities and dependencies
  • Max dimensions:  19.125” width, 31.5” depth
  • Stabilize patient’s head 53-55” above floor
  • Supports patients up to 250 lbs and 6 ft tall

 

1/15/2020

Design visual jan 15

Improvements:

  • Hydraulic lift
  • Detailed loading system
  • Optional food tray
  • Topple-resistant
  • Front half of raised platform removed

Further Assessment For:

  • Axle design
  • Telescoping supports

 

1/24/2020

Prot_Jan_24_4

Prot_Jan_24_3

Prot_Jan_24_2

Prot_Jan_24_1

CAD_Jan_24_2

CAD_Jan_24_1