Surrogate Devices

Engineered surrogate devices designed to suport compliant, reliable validation of washer disinfectors. 

Overview of Surrogate Devices

Our surrogate devices are designed to support the validation and routine testing of washer disinfectors in accordance with ISO 15883 and HTM 01-06 guidance.

The are built to replicate the complexity of endoscope channels, allowing accurate assessment of cleaning and disinfection performance under real operating conditions.

By using surrogate devices, you can gain confidence that your equipment is functioning effectively and consistently meeting required standards.

Learn more about surrogate devices

Built for Compliance

Real Device Simulation

Performance Testing

Reliable Results

Laboratory technician preparing surrogate device tubing for validation testing

Designed for compliance

Our surrogate devices are developed in line with industry standards, including ISO 1583, HTM 01-06 and BS EN ISO 16442, ensuring reliable and compliant validation.

The T-scope surrogate device is specifically deisgned to support channel patency and performance testing. It replicates the internal channels of endoscopes, allowing accurate assessment of flow and detection of issues such as:

  • Full blockage
  • Partial blockage
  • Channel disconnection

Manufactured from high-quality materials and built to meet strict specification requirements, the T-scope ensures consistent and repeatable results while reflecting real device conditions.

This allows users to confidently demonstrate that washer disinfectors are operating effectively and in line with current guidance.

T-Scope surrogate device with tubing used for endoscopy

Key applications

Channel patency testing

Simulates internal channels to identify:

  • Full or partial blockages
  • Flow restrictions
  • Channel disconnections

Cleaning efficacy (soil testing)

Used to assess whether organic material has been effectively removed during the cleaning process.

This helps confirm that washer disinfectors are achieving the required level of cleanliness before disinfection.

 

Gloved hand holding surrogate device tubing

Key applications

Disinfection efficacy

Supports validation of chemical disinfection performance by demonstrating that required conditions are achieved throughout the device.

Biofilm and challenge testing

Surrogate devices can be used to simulate challenging conditions, including biofilm presence, helping to:

  • Assess system performance under stress
  • Identify potential weaknesses in the process
  • Support ongoing quality assurance
Drawing of T-scope surrogate device showing dimensions, cross-sections and detailed component views with scale annotations

Built to reflect real devices

The T-Scope replicates the internal structure and flow conditions of an endoscope, supporting accurate and reliable validation.

Key features include:

  • 3 metre, 5-channel design

  • Multiple internal channels, valves and connection points

  • Realistic flow simulation

  • Manufactured from 316L stainless steel

  • Built to ISO 15883-4 standards

  • Consistent and repeatable results

 

Frequently Asked Questions

Find answers to common questions about surrogate devices.

A blockage or restriction may indicate issues such as debris build-up, poor flow, incorrect connections, or mechanical faults within the washer disinfector. This requires investigation before continued use.

Yes, they are designed to be adaptable and can be used across a range of washer disinfectors, depending on configuration and connection compatibility.

If disinfection efficacy results are not achieving the expected standard, several factors may need to be checked. This can include the channel connection method, chemistry type and dosing, cycle settings and cycle length, as well as any servicing or maintenance issues. It may also be worth speaking with the washer disinfector manufacturer for advice, or considering an upgrade to a more modern compliant washer disinfector.

Disinfection efficacy is essential for ensuring that washer disinfectors effectively reduce harmful microorganisms to safe levels. Effective disinfection helps minimise the risk of cross contamination, supports patient safety, and provides confidence that equipment is performing in line with relevant healthcare standards and guidance.

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