Novel wavelengths for laser nerve stimulation.
- Author(s): McCaughey, Ryan G
- Chlebicki, Cara
- Wong, Brian JF
- et al.
Published Web Locationhttps://doi.org/10.1002/lsm.20856
Laser light is known to stimulate nerves. This study investigated alternative wavelengths for nerve stimulation.The sciatic nerves of rats were irradiated with four different lasers-a Ho:YAG (2100 nm), a Yb:glass fiber laser (1495 nm) and diode lasers (1450 nm and 1540 nm).All lasers evoked a visible leg twitch response, and electromyography confirmed muscle activation. The Yb:glass laser at 1495 nm delivered through a single mode fiber was found to be the most effective stimulus. The stimulation threshold for a 2 millisecond pulse from the Yb:glass laser was determined to be 3.7+/-2.8 mJ/cm(2).The Yb:glass laser has the potential for use in neurostimulation, as an alternative to electrical stimulation.