info@matrixmarking.co.uk

Tel: +44 (0)1400 250395

Reading Marked Codes on Surgical Instruments

Q1.The dot peen marking makes dimples in the surface. Will there be any contamination left in the mark after cleaning?

A1.Dot marked coded instruments have been microbiologically tested with current test methods and have been shown to be free of contamination after the washer/disinfector.

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Q2.How big is the code?

A2.The recommended code size is 2.5mm x 6mm. This is a good shape as it fits on the majority of instruments and allows a mark deep enough to ensure that it will last many years of service. It is possible to use a smaller mark on the smaller instruments. 

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Q3.How long will the dot peen mark stand up to cleaning and daily use?

A3.A five-year study at a UK Hospital has shown no deterioration in the mark. The code is as easy to read now as when it was first marked.The mark was originally designed by an aerospace company to withstand electro polishing and bead honing and to remain readable.

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Q4.Why dot peen mark rather than laser mark?

A4.The dot peen mark is cheaper to apply, is faster to apply, does not damage the instrument and will last the life of the instrument with normal use.

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Q5.What do we do with multiple instrument packs?

A5.Each instrument in the packshould be given a unique number otherwise traceability is not possible.

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Q6.Can marking be done on site?

A6.The dot peen marker can be set up on an available bench as it requires only a 13amp socket.

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Q7.How many instruments can you mark in a day?

A7.If the instruments are unpacked then it is possible to mark more than 1,000 in a day.

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Q9.Will the dot peen mark damage the instrument?

A9.No.The dot peen mark does not penetrate the passive layer and so does not cause rusting. Also the stylus creates a compressive stress thus preventing any chance of stress corrosion.

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Q10.What is the cost of marking an instrument?

A10.If 1000 instruments are marked in a day then the cost will be £0.50 per instrument.

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