Accurian Reusable RF Probes Safety Features and Troubleshooting Guide Rev A Sept 2021

Safety Features and Troubleshooting Most Common Safety and Error Messages* Accurian™ Reusable RF Probes Error Message

Common causes of failure

E41

ƒ ƒ

Invalid probe

Broken or damaged probe Moisture in the probe connector can cause the probe to malfunction due to: ƒ ƒ ƒ ƒ ƒ ƒ ƒ

W40/E58

ƒ Poor Grounding ƒ Pad Contact Alert

W25/E25

ƒ

High Temp. on one or more channels

Use of single element grounding pad Insufficient contact area with patient or air bubbles

ƒ

Damaged hub (Hubs are susceptible to damage from frequent falls).

Review the cleaning and sterilisation** process to determine if it is the cause of the malfunction: ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ

If alert persists, the probe will need to be replaced.

ƒ

ƒ ƒ

Verify that dual dispersive (same as dual element) grounding pad such as ValleyLab 7507 is being used. Single element pads do not work with Accurian 2.0 SW version. Roll grounding pad slowly onto patient skin when applying Apply gentle pressure to smooth the grounding pad onto the patient to ensure maximum contact area Reposition the GP Remove and replace before pressing ‘Continue’

ƒ

Determine if the error is coming from the hub or the probe: ƒ ƒ

Some accounts are securing the hub to the table/cart with Velcro to protect the hub.

Damaged probe (broken wire) ƒ

W21/E21 High impedance

ƒ ƒ

Impedance ≥ 3000 Ω in stim mode Alert can occur if the circuit is open: ƒ ƒ ƒ

F02

RF Calibration Check Failure

ƒ ƒ ƒ

Probes or grounding pad not being connected Cannula active tip being placed in non-conductive or desiccated tissue (cartilage/knee) Probe not inserted in the tissue

Generator moved from colder or warmer room Generator left in cold or hot car/room Generator not allowed to stabilise to room temperature

Do not let end connectors soak during cleaning Allow for full 30-minute dry time. Moisture in the connector can cause the probe to malfunction. Allow probes to return to room temperature before use. Use bigger pouches (7 ½”x13” recommended) Use one pouch per probe (not two) Use only enzymatic cleaner Verify that autoclave vents properly When coming out of the autoclave, probes should be dry. There should be no visible moisture.

ƒ

ƒ ƒ

ƒ ƒ

Soaking of connector in cleaning solution during cleaning. Insufficient drying time in steriliser (<30min) Small pouches Double pouching Wiping connector with aggressive clinical cleaner (Alcohol based, McKesson Pro-Tech RTU, SpeedClean…) Improper autoclave venting Large automated systems might soak all the components

What to do

Move the probe to another channel. If the issue corrects, the hub is the issue. Report complaint to Tech Services and get a replacement hub. In the meantime, the hub can continue to operate any unaffected channels. If the issue doesn’t correct, the probe is not functioning properly and needs to be replaced.

ƒ ƒ ƒ

Reposition the probe. Inject additional fluid. If alert persists, the probe will need to be replaced.

ƒ

The generator should be given time to adjust to stable room temperature within the procedure suite (typically 1-2 hours)

The Accurian RF Ablation System is an Rx only nerve ablation system intended for the creation of radiofrequency lesions in nervous tissue. Refer to product instruction manuals and package inserts for a complete list of instructions, warnings, precautions and contraindications. This guide is not intended to replace the Instructions for Use. Reference: UC202108422EN Accurian RFA In-service Guide iPDF *For complete troubleshooting guide and list of safety alerts and error messages, refer to Accurian RFA In-Service Guide iPDF ** For complete cleaning and sterilisation instructions, refer to the Accurian Reusable RF Probe IFU The IFU may be found at: Medtronic.com/manuals. IFU M708348B806E Rev. A