NL_2021-02 Automatic quality control in medical technology - Evosys Laser

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Automatic quality control in medical technology

Welds like the one on this cartridge can be inspected with the PICTOR Vision.
Welds like the one on this cartridge can be inspected with the PICTOR Vision.

Laser welding of plastics is ideal when plastic parts of medical products are to be joined together in a process-safe manner. This technology enjoys a good reputation in the pharmaceutical and medical technology industries, as it is considered to be validation-proof. From blood glucose meters to insulin and drug dosage devices to structural components of medical equipment, the process is now used in many areas.

Today, the laser is an established tool in many areas of production. Due to the high precision, the locally well dosable energy input and last but not least the cleanliness, this tool has secured a firm place in production. The process works particle-free and is predestined for manufacturing in clean rooms. It is therefore the key to production in the medtech sector, because medical devices and consumables can be manufactured particularly hygienically using lasers.

The use of plastics in medicine is growing continuously and product complexity is constantly increasing. Plastics are thus among the most widely used materials in medicine. The most important reason for this is the high level of safety for the patient. Medically approved plastics are kind to the skin and do not cause allergies. They are also virtually unbreakable, do not absorb odors, and have a high resistance to water and many other media. In terms of manufacturing processes, polymers offer almost inexhaustible formability and customizability, and the design can be tailored almost perfectly to the intended use and desired functions.

The range of applications is broad: from packaging, infusion bags, tubing and other components for injection systems, to prostheses and inlays, to housings for small and large electronic devices. Complex analysis cartridges for in-vitro diagnostics are now standard, for which laser welding is often used as the joining process.

Laser welding also shows its full potential in the production process, as reproducibility is important in addition to hygiene and absolute freedom from particles. Process quality can be recorded and documented for each individual component. A whole range of systems and sensors are available for this purpose in the value chain. Before the welding process, for example, the Intego PICTOR testing device can be used to measure the transmittance and thus check the material properties. Fluctuations in supplied raw parts can thus be detected and documented at an early stage.

After the welding process, the weld seams of the finished assemblies can be evaluated with the Intego PICTOR Vision by means of subsequent camera inspection. Defects in the weld seam are thus reliably detected and defective components sorted out.

The Intego PICTOR Vision thus supports automatic optical quality control in your production. The inspection results are available in real time, can be used directly for production control and allow later evaluation for process optimization. Are you curious? On our YouTube channel, we explain the functionality of the inspection device more detailed. You can find our video here.

Do you have questions about the transmissibility of plastics or about the Intego test systems? We will be happy to clarify them. You can reach us by phone at +49 9131-81497-29 (Holger Aldebert) or send an E-mail at sales@evosys-laser.com.

Laser welded medical part (Plastic cartridge with nozzle)
Laser welded medical part (Plastic cartridge with nozzle)
The Intego inspection device PICTOR Vision supports you in the quality control of laser welds.
The Intego inspection device PICTOR Vision supports you in the quality control of laser welds.