Overview
ISO 15142-1:2003 - "Implants for surgery - Metal intramedullary nailing systems - Part 1: Intramedullary nails" defines terms and minimum requirements for metal intramedullary nails used for the temporary intramedullary stabilization of long bones. The standard applies to metal intramedullary fixation devices implanted surgically in the human body and is part of the ISO 15142 series for metal intramedullary nailing systems.
Key topics and technical requirements
- Scope and terminology: Precise definitions for nail types (solid, cannulated, closed-section, open-section, angulated, curved, straight, bundle nails), connection elements, locking components, insertion/removal devices, and dimensional terms such as inner/outer diameter, effective and overall length.
- Materials: Metallic materials must comply with ISO 14602 and the relevant parts of ISO 5832 (implants for surgery - metallic materials).
- Surface requirements: Surface finish shall not adversely affect biocompatibility; surface effects on bone ongrowth and device removal must be addressed in the device risk analysis.
- Marking and labelling: Implants must be marked according to ISO 14630; orientation (left/right) and unique markings to prevent positioning errors are required. Product labels must include, at minimum, nail-specific data such as length and diameter.
- Design for insertion/removal: Nail geometry must reflect insertion/removal technique. Slots and connection features must accept hooks and extractor devices (see ISO 15142-3). Standard threads should follow ISO 965-1/2 metric dimensions; Annex A lists common ANSI B1.1 thread designations used in existing nails (e.g., 1/4-28, 5/16-24).
- Compatibility: Connection elements, locking components (screws, bolts, cross-arms) and insertion devices must be compatible with the nail’s design and documented dimensions.
Applications and who uses it
ISO 15142-1 is intended for:
- Medical device manufacturers designing and producing intramedullary nails and fixation systems
- Regulatory and quality teams assessing conformity and preparing technical documentation
- R&D and design engineers specifying materials, surface treatments, and connection features
- Hospitals and procurement teams evaluating device compatibility and labelling
- Clinical engineers and orthopedic surgeons who require standardized definitions and interface dimensions for instrumentation and implants
Practical use: ensures consistent terminology, material selection guidance, labelling, and mechanical interface standards to improve device safety, interchangeability, and ease of removal.
Related standards
- ISO 15142-2: Locking components (related part of the series)
- ISO 15142-3: Connection devices and reamer diameter measurements
- ISO 14602, ISO 14630 (implant general and particular requirements)
- ISO 5832 (metallic implant materials)
- ISO 965-1 / ISO 965-2 (metric screw thread tolerances)
- ANSI B1.1 (informative thread designations referenced in Annex A)
Keywords: ISO 15142-1, intramedullary nails, metal intramedullary nailing systems, implants for surgery, intramedullary fixation, medical device standard.
Open preview (PDF)Implants for surgery — Metal intramedullary nailing systems — Part 1: Intramedullary nails
