ISO 13405-1:2015

Overview

ISO 13405-1:2015 is an international standard published by the International Organization for Standardization (ISO) that establishes a systematic classification system for components of limb prostheses. This standard specifies the means to classify prosthetic components based on their function and construction. It forms part one of the ISO 13405 series, focusing exclusively on the classification aspect to facilitate clear communication among manufacturers, practitioners, and users in the prosthetics and orthotics field.

ISO 13405-1:2015 provides a foundation for describing limb prostheses components in a consistent way, improving documentation, reporting, and collaboration globally. It is widely used in prosthetic design, clinical practice, manufacturing, and research.

Key Topics

• Classification Framework
  The standard categorizes prosthetic components into five main classes:

  • Interface components
  • Functional components
  • Alignment components
  • Structural components
  • Finishing (cosmetic) components

• Interface Components
  These are the parts in direct contact with the user, responsible for stabilization and suspension of the prosthesis. Key elements include:

  • Sockets
  • Suspensory components
  • Liners (removable linings modifying force distribution and suspension)

• Functional Components
  Components that substitute the dynamic and sensory functions of missing limbs. The classification differentiates between:

  • Lower limb functional parts: ankle-foot units, knee units, hip units, torque reducers, shock absorbers, turntables, and external side joints
  • Upper limb functional parts: terminal devices, wrist units, elbow units, shoulder units, turntables, and external side joints

• Alignment Components
  These parts allow adjustment of component positions relative to each other, enabling optimal prosthesis performance and comfort.

• Structural Components
  These components connect and support interface, functional, and alignment parts, maintaining the prosthesis’s integrity. Types include:

  • Endoskeletal structure: internal framework covered by cosmetic components
  • Exoskeletal structure: external framework defining the prosthesis shape

• Finishing (Cosmetic) Components
  These parts replicate the appearance and feel of a natural limb, including:

  • Cosmetic fillers and shells providing shape and soft tissue simulation
  • Prosthetic skins, stockings, and gloves that mimic human skin color and texture

Applications

ISO 13405-1:2015 serves various practical purposes in the prosthetics and orthotics industry:

• Assists manufacturers in systematically categorizing and documenting prosthetic components to improve product literature and innovation.
• Supports prosthetists and clinicians in selecting, reporting, and communicating about prosthetic parts in patient treatment plans.
• Enhances the design process by offering clear terminology and classification, facilitating improved fit, functionality, and user satisfaction.
• Provides a reference framework for rehabilitation centers, researchers, and regulatory authorities to ensure consistent understanding of prosthetic components worldwide.

Related Standards

ISO 13405-1:2015 is part of a multipart standard series that comprehensively addresses prosthetic components:

• ISO 13405-2: Description of lower limb prosthetic components, detailing technical characteristics and specifications for lower limb parts.
• ISO 13405-3: Description of upper limb prosthetic components, offering detailed terminology and descriptions applicable to upper limb prostheses.

Together, these standards form an integrated system for classification, description, and specification of prosthetic components to streamline global prosthetic care and manufacturing.

Keywords: ISO 13405-1:2015, prosthetics classification, prosthetic components, limb prostheses, interface components, functional components, alignment components, structural components, finishing components, prosthetics standard, orthotics, prosthesis construction, liners, prosthetic sockets, lower limb prostheses, upper limb prostheses, prosthetic design, prosthetics manufacturing standards.