US 11,864,796 B2
Needle channel used for hair transplanter and needle channel bundle having the needle channels
Byoung Sul Kim, Gyeongsangbuk-do (KR); and Tae Seong Lee, Daegu (KR)
Assigned to OHDAE CORPORATION, Daegu (KR)
Filed by OHDAE CORPORATION, Daegu (KR)
Filed on Nov. 30, 2020, as Appl. No. 17/106,183.
Application 17/106,183 is a continuation of application No. PCT/KR2019/006203, filed on May 23, 2019.
Claims priority of application No. 10-2018-0076789 (KR), filed on Jul. 2, 2018.
Prior Publication US 2021/0077148 A1, Mar. 18, 2021
Int. Cl. A61B 17/34 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/3468 (2013.01) [A61B 2017/00752 (2013.01)] 11 Claims
OG exemplary drawing
 
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.