CPC A61B 17/3468 (2013.01) [A61B 2017/00752 (2013.01)] | 11 Claims |
1. A needle channel usable in a hair transplanter, the needle channel being configured to be coupled to an outer circumference of a center shaft in the hair transplanter to be slidable up and down, the needle channel comprising:
a body having a tubular inner space formed therein;
a needle coupled to a lower end of the body;
a core shaft slidably disposed in the tubular inner space and the needle;
a slot formed on the body in a longitudinal direction and opened in an outward radial direction from a center axis of the center shaft;
a lever coupled to an upper end of the core shaft, and disposed to be slidable up and down in the slot;
a spring fitted over a circumference of the core shaft and having an upper end supported on the lever and a lower end supported on a bottom surface of the slot,
a locking protrusion protruding from the body in the outward radial direction and formed to surround the slot on the left and right; and
a saw-toothed ratchet gear tooth formed at a lower end of the locking protrusion and having an inclination angle only in one direction.
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