Embedded Files
Subteam 1: CAD Models
Subteam 1: CAD Models
Subteam 2: Physical Prototypes/Models
Subteam 2: Physical Prototypes/Models
Initial Sketching
Hydrogel-foam exterior surrounding a synthetic disc replacement
Hydrogel-foam exterior surrounding a synthetic disc replacement
Semi-Malleable casing surrounding a nuclea pulpa with guidelines to align it within the adjacent vertebrae
Semi-Malleable casing surrounding a nuclea pulpa with guidelines to align it within the adjacent vertebrae
Clamp is similar to L-bracket with a curve on one side to match surface shape of vertebrae. Top will be designed to facilitate attachment
Clamp is similar to L-bracket with a curve on one side to match surface shape of vertebrae. Top will be designed to facilitate attachment
Clamp similar to a T-Bracket with a concave curve with a textured surface near the screwhole to aid in attachment and bone growth
Clamp similar to a T-Bracket with a concave curve with a textured surface near the screwhole to aid in attachment and bone growth
Modeling
Spinal MOdel Render
Spinal MOdel Render
This render is the complete assembly (L3-L5) of the PTFE enclosure placed between the L4 and 5 discs. The pink disc is what the healthy disc looks like in the spine while the silver one represents the enclosure secured with the Anchor 2 prototype with a one-way valve.
PTFE Model
PTFE Model
This render is what the PTFE enclosure model used for simulations was. The model was designed to scale to fit within the lumbar disc space while maintaining the general surface shape of the vertebral body.
Testing: FEA
Full Spinal Model FEA
Full Spinal Model FEA
Displacement FEA performed on the full assembly to predict it's behavior in vitro and pinpoint areas of concern
FEA on PTFE SAC
FEA on PTFE SAC
Von mises stress FEA performed on the PTFE sac model to predict it's reactions to various loads and locate areas that need reinforcement
Prototyping
3d printed clip
3d printed clip
This prototype of clip v2 is composed of PLA and serves as a test for the viability of a titanium model in an anatomically correct model.
FELT SAC MODEL
FELT SAC MODEL
The felt prototype of the sac serves as a step for understanding how the PTFE should be sealed, where the felt substitutes for PTFE and the string substitutes for nylon.
Done By: Benjamin Bestmann
Page updated
Report abuse