Medical device laser welding
Precision laser welding and hermetic sealing for medical devices and their components. Our pulsed LASAG lasers make small, clean, repeatable welds in stainless steel, titanium, Nitinol, MP35N, platinum and other medical alloys, with low heat input that protects nearby electronics and seals.
Small parts, fine welds, zero room for error
Medical devices need materials and joining methods the body tolerates and welds that last. We have many years of experience with medical specialty materials and the techniques they require.
Hermetic sealing
Helium-tight seam welds for device housings and enclosures, including assemblies with powered electronic components.
Micro welding
Spot welds from 25 µm and precise seams on small, thin and heat-sensitive parts.
Wires, foils & fine features
Precision welding of thin foils and joining of wires and small plates.
Dissimilar metals
Platinum, gold, copper alloys, stainless, Nitinol, titanium, MP35N and Elgiloy joined with repeatable results.
Marks that survive
Serials, Data Matrix and UDI marks that survive passivation and sterilization.
Laser marking →Prototype to production
Development builds, validation lots and repeat production welding.
Why device makers choose laser welding
Low heat input
Energy goes only where it’s needed, which makes welding next to glass-to-metal seals, electronics, O-rings and plastics possible.
Clean welds
Clean, smooth seams are easier to sterilize and fit into assemblies without the weld getting in the way.
Hermetic seals
Unlike soldering or brazing, laser welding produces true hermetic seals, which many medical applications require.
Repeatability
Stable laser output and no electrodes to wear or contaminate the weld, so every weld matches the last.
Medical work is performed under our AS9100D and ISO 9001:2015 registered quality management system, with traceability from drawing review to shipment.
Medical laser welding: common questions
Can you make hermetic welds for medical devices?
Yes. Our pulsed LASAG lasers produce helium- and pressure-tight seam welds for device housings, sensors and feedthroughs.
What medical alloys can you laser weld?
316L and other stainless steels, commercially pure and alloy titanium, Nitinol, MP35N, Elgiloy, platinum, gold, tantalum and Kovar, plus dissimilar combinations.
Do laser marks survive sterilization?
Yes. Our MOPA laser marks, including serials, Data Matrix and UDI codes, are made to survive passivation and sterilization.
Where is your medical laser welding done?
All work is done in our shop at 3667 San Gabriel River Parkway, Pico Rivera, California, in Los Angeles County. We work with device makers throughout California and across the U.S.
Have a drawing ready? Get it reviewed by an engineer.
Send drawings, CAD or photos. An engineer reviews every request.