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// bretthauer.studio.init()

BRETTHAUER

Computational Designer

3D Scan → Print Orthotics Prosthetics Grasshopper Patient-Specific

# anatomy · algorithm · fabrication

Clinical knowledge meets
computational form.

↓ scroll_to_explore()

01 / 06 [ COVER ]

// about.me

BIO

I design patient-specific medical devices at the intersection of clinical knowledge and computational form. With a background in architecture and 6+ years as a physiotherapist specialising in musculoskeletal rehabilitation, I build parametric pipelines that go from anatomical scan data to functional orthoses — understanding both the biomechanical requirements and the geometry that fulfils them.

// location Offenbach, DE
// background architecture · physiotherapy · computation
// focus clinical · parametric · patient-specific
// status open_to_collab()
Sandro Bretthauer

// parametric_design()

// 3d_modeling()

// 3d_scanning()

// 3d_print_prototyping()

// visual_communication()

02 / 06 [ BIO ]

// skills.load()

TOOLS

grasshopper( rhino ) 95%

Parametric modelling · component networks
Data-driven geometry · surface logic

python( GHPython ) 80%

Scripting · automation
Custom algorithms · data pipelines

adobe_suite( ps · ai · id ) 85%

Visual communication · presentation
Post-production · layout

3d_prototyping( scan + print ) 82%

Physical prototypes · 3D scanning
FDM / SLA printing · mesh prep

claude_ai( design_loop() )

AI-augmented iteration · vision analysis
Code generation · rapid pipeline prototyping

Rhino 8 Grasshopper Dendro GHPython Parakeet Kangaroo2 Photoshop Illustrator InDesign
03 / 06 [ SKILLS ]

// projects.render()

PROJECTS

Cruris

01

Cruris

3D Scan3D Print
Coxa

02

Coxa

CT ScanTPMS
Planta

03

Planta

Pressure MapVoronoi
Cranium

04

Cranium

3D ScanGrasshopper
Brachium

05

Brachium

3D ScanGrasshopper

↓ scroll for detail · full_view()

[ PROJECTS ]
CrurisShield img00
CrurisShield img01

// 2025_cruris.gh

CRURIS

3D ScanGrasshopper3D Print
01
02
03
01

Patient-specific prosthetic cover generated from a 3D body scan. The contralateral limb is mirrored and parametrically refined in Grasshopper — from anatomical data to FDM-printed shell in a single digital pipeline.

The geometry adapts entirely to the individual's anatomy. No manual modelling — the algorithm reads the scan, generates the form, and outputs print-ready geometry.

Coxa img00
Coxa img01

// 2026_coxa.gh

COXA

CT ScanGrasshopperTPMS Lattice
01
02
03
02

Patient-specific hip prosthesis stem with a TPMS lattice core. Parametric geometry in Grasshopper shapes the outer stem to the femoral canal; a triply-periodic minimal surface fills the interior — tuned to balance load transfer with osseointegration.

The lattice is not drawn manually — it emerges from a mathematical field across the stem volume. Bone integrates into the porous structure while the dense outer shell handles primary loading. From CT scan to print-ready geometry in a single computational pipeline.

Planta img00
Planta img01

// 2026_planta.gh

PLANTA

Pressure MapVoronoiGrasshopper
01
02
03
03

Parametric shoe sole with a Voronoi lattice structure driven by foot pressure data. A pressure map captured from gait analysis informs the cell density — high-pressure zones get denser, reinforced geometry while low-pressure areas open up for flexibility and ventilation.

The pipeline connects biomechanical sensor data directly to generative geometry in Grasshopper — from pressure scan to 3D-printable sole in a single parametric workflow.

Cranium img00
Cranium img01

// 2025_cranium.gh

CRANIUM

3D ScanGrasshopper3D Print
01
02
03
04

Patient-specific cranial helmet generated from a 3D head scan. Parametric surface logic in Grasshopper adapts the geometry to therapeutic requirements — from anatomical scan data to printed orthosis in a single digital pipeline.

Asymmetric head shapes are captured precisely by the scan. The algorithm calculates corrective geometry and generates a customised shell — no manual intervention between scan and print.

Brachium img00
Brachium img01

// 2025_brachium.gh

BRACHIUM

3D ScanGrasshopper3D Print
01
02
03
05

Patient-specific arm orthosis generated from a 3D body scan. Parametric geometry in Grasshopper adapts to anatomical contours — from scan data to FDM-printed shell in a single digital pipeline.

The biomechanical requirements of the upper limb determine the form. Scan data drives the geometry — the result is a functional orthosis fitted precisely to the individual body.

// collaboration.init()

LET'S
BUILD.

Open to collaboration with medical device companies, orthopedic labs, rehabilitation clinics, and digital health teams — anywhere a clinical problem needs a computational solution.

// send_message()

// location

Offenbach, DE

// mail

hello@
bretthauer.studio

// status

available

[ CONTACT ]