US 11,724,043 B2
Apparatus and method for intracranial drug injection
Duk Lyul Na, Seoul (KR); Jeongmin Lee, Seoul (KR); Wooram Jung, Seoul (KR); and Jung-Il Lee, Seoul (KR)
Assigned to Samsung Life Public Welfare Foundation, Seoul (KR)
Appl. No. 16/760,351
Filed by Samsung Life Public Welfare Foundation, Seoul (KR)
PCT Filed Oct. 31, 2018, PCT No. PCT/KR2018/013097
§ 371(c)(1), (2) Date Apr. 29, 2020,
PCT Pub. No. WO2019/088690, PCT Pub. Date May 9, 2019.
Claims priority of application No. 10-2017-0144757 (KR), filed on Nov. 1, 2017.
Prior Publication US 2021/0369979 A1, Dec. 2, 2021
Int. Cl. A61M 5/32 (2006.01)
CPC A61M 5/3287 (2013.01) [A61M 5/32 (2013.01); A61M 2210/0693 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An apparatus for intracranial drug injection comprising:
a body unit having a through-hole extending between a first opening in a topmost surface and a second opening in a bottommost surface;
a cap unit having a shape corresponding to at least a part of an inner surface of the through-hole and being inserted into the first opening to cover the first opening; and
a tube unit having one end coupled to the second opening and the other end configured to extend toward a brain lesion,
wherein the through-hole comprises:
a first through unit into which the cap unit is inserted;
a third through unit into which the tube unit is inserted; and
a second through unit connecting the first through unit to the third through unit, and
wherein a cross-sectional area of the second through unit is smaller than a cross-sectional area of the third through unit, and
wherein the first through unit, the second through unit, and the third through unit extend continuously inside the body unit which is formed as one piece.