Optically-guided scalpel with light-scattering module for carpal tunnel surgical procedure via minimally invasive surgery.

A novel technique and product for carpal tunnel microscopic surgical procedures using a modified medical device containing a head as a surgical scalpel under light guidance were designed and studied. The novel design of the medical device was developed and applied in a new carpal tunnel microscopic surgical procedure in place of the traditional carpal tunnel surgical procedure. Biological and clinical evaluations of carpal tunnel surgical procedure using the designed optically guided medical device were studied. For commercialized reasons, some guidance was considered, such as ISO 10993- 1:2009(E), for the biological evaluation of the device. Furthermore, a clinical evaluation was carried out. The designed optically guided medical device could provide a powerful medical device for carpal tunnel syndrome and related applications. A novel optically guided medical device with a scalpel and light-scattering module was designed for clinical needs of carpal tunnel surgical procedures via minimally invasive surgery (MIS). The wrist is surrounded by a band of fibrous tissue that supports the joint. The tight space between the wrist bone and the fibrous band is called the carpal tunnel. The median nerve passes through the carpal tunnel to receive sensations from the thumb, index, and middle fingers. Hence, any condition that causes swelling or a change in the position of the tissue within the carpal tunnel can repress and damage the median nerve. Repression and irritation of the median nerve can cause numbness and tingling of the thumb, index, and middle fingers, which is a clinical condition known as carpal tunnel syndrome. In this study, a novel technique and medical device for carpal tunnel microscopic surgical procedures through a modified medical device containing a head as a scalpel using light guidance was proposed.