Ergonomic Knee Pillow (Gender-Parametric)

Medical Device Design Task – Parametric CAD for Gender-Specific Ergonomic Side-Sleeper Knee PillowsDesign two separate, highly detailed parametric CAD models (one Male, one Female) for premium side-sleeper knee pillows optimized for biomechanical alignment, pressure distribution, and long-term joint health.Core Requirements:Male Variant: Narrower hip width accommodation, slightly reduced abduction angle. Female Variant: Wider pelvic accommodation, slightly increased abduction to account for higher average Q-angle. Evidence-Based Biomechanical Parameters:Hip abduction: Male 6–10° (default 8°), Female 8–15° (default 12°). Knee flexion: 10–20° neutral. Load distribution: Softer zones (Shore 20–30) under knee joint and patellar tendon; firmer zones (Shore 40–50) in thigh separator for stable abduction support. V-shaped thigh separation following gender-specific hip ratios. Semi-ball knee cradle (depth 3.5–5.5 cm) with outer interlocking contours for mutual knee support and dynamic stability. Parametric Controls (Fully Adjustable):Hip width / pelvic tilt Overall firmness (multiple density zones) Size scale (S/M/L based on thigh circumference and leg length) Abduction angle (5–15° range) Dimensions (Base Values – Parametric):Total length: 48–55 cm Max thigh width: Male 28–32 cm, Female 32–38 cm Max height/thickness: 18–26 cm (tapered) Knee cradle width: 11–15 cm Base width: 20–26 cm for anti-roll stability Structural Details:Zoned lattice infill for breathability and variable firmness. Textured anti-slip base with micro-grip pattern. Extended lower leg support for patellar tendon. Channels for heat dissipation. Output Requirements:Two separate parametric CAD files (Male + Female). Exploded assembly views with full dimension callouts and arrows. Cross-sections showing load distribution and abduction angles. High-resolution renderings (in-use male and female models, material close-ups). Engineering specification sheet with print/manufacturing notes. Design for clinical-grade comfort (8+ hours), excellent pressure mapping, spinal alignment, and commercial viability as a medical wellness product.

Parameters

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.