INERTRA™ Retention — Geometry‑Driven Retention Architecture for Medical, Orthopedic & High‑lifecycle risk Assemblies
Public summary is intentionally high level. Claim interpretation, drawings, and integration considerations are reviewed during diligence with qualified partners, typically under mutual confidentiality.
Issued US Patent (Google Patents) Licensing available
Integration considerations
Evaluation focuses on geometry compatibility, manufacturing implications, and field‑of‑use alignment. Non‑public technical detail is reviewed under NDA.
Overview
This patent covers a geometry-driven threaded retention architecture applicable to precision and high-lifecycle risk assemblies, including medical and orthopedic contexts where micro-motion, repetitive loading, and service constraints can drive loosening over time. Retention behavior is embedded into geometry to preserve preload integrity without adhesives or disposable locking elements, while maintaining intentional serviceability.
Problem
In precision assemblies, small changes in interface condition—micro-motion, cyclic loading, and repeated adjustment—can degrade preload and lead to gradual loosening. Conventional approaches often depend on adhesives, deformation, or secondary hardware that can complicate assembly, reduce serviceability, or introduce additional failure points.
Approach
The retention function is integrated into the threaded interface geometry to resist loosening under vibration, cyclic load, and micro-motion while preserving controlled disengagement when service is required. Implementation details, materials, testing, validation, and regulatory approvals are defined and owned by the licensee.
Key characteristics
- Geometry-driven retention behavior integrated into the threaded interface
- Designed to preserve preload integrity under micro-motion, vibration, and cyclic loading
- Maintains intentional serviceability without adhesives or disposable locking elements
- Integration and validation reviewed under NDA with qualified partners
Representative application domains
Transportation & high‑vibration systems
Heavy‑vibration fastening contexts where retention loss drives downtime or safety exposure, while planned service and removal remain required.
Safety‑critical assemblies
Use cases where re‑torque is not a plan and secondary retention methods introduce unacceptable dependency or risk.
Serviceable, repeat‑engagement joints
Contexts requiring retention under cycle loading while preserving intentional disengagement for inspection, replacement, and planned maintenance.
Medical & orthopedic applications
Precision medical and orthopedic assemblies can experience loosening due to repetitive loading and micro‑motion over time. The patented retention architecture defines interface behavior that preserves preload without adhesives or disposable locking elements, while enabling intentional serviceability. Implementation, material selection, testing, validation, and regulatory approvals are the responsibility of the licensee.
Licensing
Licensing discussions focus on field of use, integration realities, and practical commercialization pathways aligned to the licensee’s manufacturing capabilities. Non‑public technical details are shared only under mutual confidentiality with qualified partners.