Laser surface modification
Resonetics offers laser technologies for texturing of polymer and thin metal surfaces used in medical devices and diagnostics. Texturing to add tiny patterns can be used to control cell growth, enhance the surface area to alter fluidic behavior, or increase the contact area to optimize bonding, especially between PET balloons and catheters or other components.
Laser surface texturing can alter 2-D surfaces, such as flat films, or 3-D surfaces such as implants, catheters, or balloons.
Texturing can range from controlled geometric microstructures with dimensions of microns to tens of microns to random or pseudo-random roughening at a micron to sub-micron scale. Multiple laser wavelengths are available according to material interaction requirements. For consistent results, we maintain critical optical and process control parameters.
Laser-textured titanium screw surface
Applications for Laser Texturing
Some of the potential medical device applications that use laser texturing include:
- Coronary stents – creating drug reservoirs
- Balloons – texturing helps improve traction between the balloon and arterial wall
- Catheters – may help increase balloon adhesion to catheter shaft
- Minimally invasive surgery – may improve the growth of connective tissue with polymer implants
- Spinal fusion– fine laser texturing of metal components may be advantageous versus less controllable beadblasting or additive coatings
While our focus is polymers, our work includes laser texturing the surface of many materials, including:
Laser-textured balloon surface