ISO 23908:2011

Overview

ISO 23908:2011 specifies requirements and test methods for sharps injury protection features on medical devices that contain sharp hypodermic needles for single use - including single‑use hypodermic needles, catheter introducers and blood‑sampling needles/lancets. It is a horizontal standard that focuses on performance verification of active or passive safety features (integral or combined prior to use) - not on storage/handling before use or on the medical device’s clinical function.

Key topics and technical requirements

• Scope and intent: performance evaluation of sharps protection systems intended to reduce accidental post‑use sharps injuries and potential disease transmission.
• Active vs. passive features: definitions and expectations - active features require a user step to deploy; passive features deploy automatically after intended use.
• Safe mode requirements: once activated the device must remain in a safe mode that prevents access to the sharp until disposal and must be apparent to the user (visual, tactile and/or audible indication).
• Activation characteristics:
  • Activation forces must be appropriate for intended users (patients, healthcare workers, caregivers) and selected via a risk‑based approach (consistent with ISO 14971).
  • One‑handed operation is recommended for active devices; user hands must remain behind the contaminated sharp during activation.
• Security of safe mode: devices must resist unintended exposure and minimize accidental access; manufacturers determine overriding forces by risk analysis.
• Test methods:
  • Procedures for testing activation (tensile/compressive/torque), challenging the device in safe mode, testing access to the sharp in safe mode, and simulated clinical use studies.
  • Standard test conditions: temperature (23 ± 5) °C and relative humidity (50 ± 25) %, with devices preconditioned for at least 4 hours.
  • Statistical sampling and analysis references: ISO 2859 / ISO 3951 (sampling) and ISO 16269‑6 (statistical tolerance intervals).
• Manufacturer information: marking/labeling and instructions for use are required; guidance on simulated user studies is provided (Annex A) and specific access test methods (Annex B).

Practical applications - who uses ISO 23908:2011

• Medical device manufacturers designing and verifying sharps protection features for regulatory submissions and product development.
• Quality and regulatory engineers creating test protocols and risk assessments.
• Test laboratories performing activation, security and simulated‑use testing.
• Procurement and hospital safety teams evaluating safety performance of single‑use needle products.
• Usability specialists conducting simulated clinical use studies in line with IEC 62366 guidance.

Related standards

• ISO 14971 - risk management for medical devices
• ISO 2859 / ISO 3951 - sampling procedures
• ISO 16269‑6 - statistical tolerance intervals
• IEC 62366 - usability engineering (recommended for usability considerations)

ISO 23908:2011 helps ensure sharps protection features are effective, user‑appropriate and demonstrably safe under realistic use conditions - supporting safer healthcare practice and regulatory compliance.