We have already talked about the Picosecond Laser in this article and how important it is today to ensure 100% reliable Laser marking for UDI codes on medical devices.
The medical industry is one of the most demanding industries for Laser marking on both metal and plastic.
This is why the advent of the Picosecond Laser has been a revolution for all companies in the industry. Let’s take a closer look at its technical specifications.
| TECHNICAL FEATURES | ADVANTAGES | |
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Pulses last only 2ps and reach 10MW Peak power! |
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Some processes – such as high-contrast black marking and machomachining of various materials, that were unimaginable with the traditional infrared laser – are now possible. |
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We usually work with a frequency rate between 500 kHz and 100 kHz, while here the frequency range is from 50 kHz to 2000 kHz |
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Increased execution speed. |
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1030 nm wavelength, slightly lower than the traditional 1064 nm. |
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It is compatible with most of materials. |
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High beam quality (M2 = 1.2); |
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To increase energy density it has a smaller spot |
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Water cooling with a chiller. |
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The system remains stable over time |
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Laser marking is the only safe technology when dealing with traceability and people’s lives. This does not alter the surface of the material and does not compromise the functionality of the instruments.
DI is the mandatory part of the UDI code. It specifies the version and the model of the products
PI is the variable part of the UDI code. It includes:
Laser marking in the medical industry follows a precise code system – called GS1-128 and GS1 Datamatrix – which contain the mandatory information for product traceability.The code must also be visible to the human eye and should be applied to all categories of devices by law.
The Laser marking processes with which we apply these codes are:
In this article we will focus on the best Laser for achieving black, impalpable and reflection-free Laser marking on metal instruments. The Picosecond Laser is without a doubt the king of Annealing.
Annealing is a Laser marking process in which the material is heated on the surface and turns black. There is no removal of material or surface change. Nevertheless, the result is as indelible as ever when it comes to Laser marking.
With the Picosecond Laser, marking is black and reflection-free. Codes and markings on scalpels (or other instruments) will always be visible under whatever light you look at them. This is essential in the operating room.
The Picosecond Laser does not oxidize and does not rust. At LASIT, we have an area of the laboratory dedicated to Salt Spray Tests to guarantee the resistance and quality of Laser markings on our customers’ products. The markings made with the Picosecond Laser have passed all tests.
Resistance to citric and nitric passivation cycles is another Test that the Picosecond Laser passes with flying colors. At LASIT, we test resistance to citric passivation through repeated stress cycles on the Laser marking.
With the Picosecond Laser, codes do not fade but remain high-contrast black.
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