Medical and orthotics prototypes

SLS 3D Printing for Orthotics and Medical Device Prototypes

Prototype orthotic supports, prosthetic covers and non-implant medical device components with nylon material guidance and design-for-manufacturing review.

SLS 3D printed orthotic brace and prosthetic cover prototypes

Target customers

Medical device R&D teamsorthotics developersprosthetic product teamsrehabilitation equipment companies

Industry pain points

What makes this application difficult?

  • !Orthotic and rehabilitation components often require patient-specific geometry or ergonomic iteration.
  • !Medical device prototypes need functional nylon behavior before tooling or regulatory production planning.
  • !Thin edges, straps, covers and screw zones can fail if material and geometry are not reviewed together.

SLS solution

How SLS helps before tooling

  • ✓SLS can produce complex organic shapes, ventilated structures and lightweight covers without support marks.
  • ✓PA11 and PA12 options help balance ductility, stability and skin-contact feel after finishing.
  • ✓DFM review can identify weak zones, clearance risks and post-processing effects before the first build.

Application modules

Parts commonly reviewed for Medical & Orthotics

Use these examples to prepare CAD files, quantities and critical-feature notes for RFQ review.

Orthotic support prototypes

Prosthetic cosmetic covers

Rehabilitation device housings

Medical instrument handles

Non-implant device components

Anatomical and training models

Custom positioning fixtures

Wearable medical product prototypes

Material recommendation

Choose PA12, PA11, PA12GB or TPU by function

Material choice should follow the real load case: stiffness, impact resistance, repeated flexing, contact feel and finishing requirements.

MaterialBest fitSelection logic
PA12Stable medical device housingsGood for general functional prototypes and assembly validation.
PA11Flexible or impact-resistant orthotic partsUseful for parts needing more ductility or a softer response.
PA12GBRigid fixtures and equipment partsConsider for non-flexing jigs, bases and machine-side components.
TPUSoft samples or wearable conceptsUseful for elastic samples when softness or cushioning is required.

Material and testing support

Precimid 1190Pro biological evaluation data

Precimid 1190Pro with chemical vapor smoothing has test data covering cytotoxicity (ISO 10993-5), skin irritation (ISO 10993-23) and skin sensitization (ISO 10993-10). Under the study conditions, the extract showed no potential cytotoxicity, a skin irritation PII of 0 (Negligible), and a sensitization positive rate of 0% in the test groups.

These data can inform material evaluation for rehabilitation and orthotic projects. Results are limited to the tested articles and conditions and do not certify a final device or every skin-contact duration. Review contact type, duration, color, finish, cleaning and sterilization requirements for your product.

Precimid 1190Pro test results and report references

Case module

Problem-material-quantity-cycle-result format

This de-identified pattern shows the kind of project information that makes DFM review and quotation more accurate.

ProblemA rehabilitation product team needed a lightweight cover with smooth edges and revised fastening points.
MaterialPA11 for the cover, PA12 for rigid internal samples
Quantity6 cover prototypes and 12 fitting samples
Cycle6 working days including finishing review
ResultThe team compared fit, flexibility and fastening options before moving to the next clinical evaluation sample.

Design advice

DFM notes before uploading CAD

Review minimum wall thickness around thin edges, slots and strap features before printing.

Use generous radii where flexible areas meet rigid sections to reduce cracking risk.

Avoid closed cavities unless powder-removal openings are added and clearly marked.

Plan finishing early because smoothing, dyeing or coating can change fit and edge feel.

For regulated products, use SLS prototypes for engineering validation unless production compliance is separately specified.

Related engineering resources

Continue reviewing the design