T34 syringe drivers have a risk of unintended pump shutdown

The Medicines & Healthcare Products Regulatory Agency have issued the following medical device alert.

All T34 ambulatory syringe pumps are at risk of unintended pump shutdowns and a subsequent delay in providing treatment.

Manufactured by Caesarea Medical Electronics (CME) Ltd – a variation in battery size can cause problems with connections in the battery housing.


The manufacturer has identified that there can be a +/- 2mm overall size difference between battery brands used with CME’s T34 ambulatory syringe pumps. This could result in battery movement within the battery housing leading to a possible loss of connection. This may result in the pump shutting down.

Advise for healthcare staff who use the pump:

  • Identify all affected pumps.
  • Before using the pump, check that the batteries have an adequate connection within the battery housing.
  • You must also check the connections after each battery change.
  • If you find problems with the battery connections, contact your local or hospital servicing department, or CME UK, to arrange for them to adjust the battery housing connection.

If you are a patient using this device the MHRA advice you contact your designated healthcare professional.

You can view the official alert here.