Latest News

Bitesize Webinar Series: Ultrasound User Quality Assurance

Multi-Medix is proud to announce that it will be holding “bitesize” QA webinars in May.

Each webinar will only be 20 mins long with 10 minutes for questions at the end, available live and via recordings.

If you are thinking of starting an ultrasound QA programme or want a refresher on QA activities, these informal and short sessions are ideal.

The series of webinars will include the following topics & will all be at 7.30pm GMT.

All webinars will be hosted by Dr Nick Dudley and Darren Woolley, who will be joined for session 4 by Gillian Harrison, Professional Officer Ultrasound SCoR.

No 1      Tuesday 4th May            Components of a QA system

No 2      Tuesday 11th May          User QA & Audit

No 3      Tuesday 18th May          Baselining

No 4      Tuesday 25th May        “Putting it all together”. Open Q&A and discussion re CPD.

After each webinar, the recording will be held here for you access whenever you wish.  If you can’t wait until May, don’t forget we have 8 short videos to accompany our ” Diagnostic Ultrasound QA Manual – simply log onto the Online Knowledge portal to see them.

Register here

Latest News

Multi-Medix Ultrasound Probe Test Tool – the Biomed’s “Dog Tag”

The evolution of field based probe testing – Using your Multi-Medix Probe Test Tool

“A paper clip was designed to hold paper together – the Multi-Medix Probe Test Tool is designed to test ultrasound probes in the field, helping engineers identify gross defects”.

Shaped liked a US Army “dog tag”, the Multi-Medix ultrasound probe test tool allows field engineers to test probes effectively. The test tool is being distributed, free of charge, to everyone registering for the Multi-Medix USA ultrasound probe testing webinarsRead on to find out how to the tool enables engineers to achieve consistent probe test results AND find 100% of gross faults in the field.

From paperclip to “dog tag”

Biomeds & clinical engineers may be familiar with the “paper clip” test. In 1989, Goldstein demonstrated in a research paper that this household object can test a linear array on an ultrasound probe. However, it does have it’s shortcomings:

Paper Clip vs “Dog Tag”

Inconsistency: Comes in different shapes & sizes, and can be coated in plastic therefore can produce differing results Consistency: One shape & size so that results are consistent.
Inaccessible: Cannot always be found Accessible: Can be attached to a keyring or lanyard
Not fit for purpose: paperclips can be “fiddly” and awkward to use when testing probes Designed by biomeds: the test tool is  ergonomically shaped and has been trailed in the field so that it is fit for purpose
Interpretation – see below Instruction – see below


The probe test tool was created by Darren Woolley, Operations Director at Multi-Medix & Dr Nick Dudley, Research Director at Multi-Medix. Their peer reviewed research paper is available to see here: A simple uniformity test for ultrasound phased arrays – Physica Medica 32-2016

Interpretation vs Instruction

Though research showed that a paperclip could test a probe, it did not explain how to do this. Without one consistent process, field engineers may create varying methods of probe testing with differing results. The Multi-Medix test tool forms part of a suggested best practise for field testing probe, demonstrated in our webinar.

Multi-Medix has an ongoing programme of research and development into ultrasound physics and probe safety. At the heart of our company is the strong commitment to share this knowledge through our free webinars.


FREE training webinar:

Using your Multi-Medix Test Tool, hosted by its inventor, Darren Woolley. 

A short, 20 min instructional webinar that will demonstrate how to use your “dog tag” effectively, enabling you to find 100% of gross defects in the field.

Log on to watch live or “on demand” via our Online Knowledge Portal

April 15th, 2021   2.30pm EST

Register here


Multi-Medix are specialists in ultrasound. We have a scientific background and have worked as biomeds ourselves in hospitals and clinics around the world. We understand what a biomed needs and can help you get your ultrasound system working again.

Try our hassle free probe repair and see our lab to find out why even the OEMs use us.