US 11,918,781 B2
Infusion flow regulator
Poo Min Park, Daejeon (KR); Hyung Mo Kim, Daejeon (KR); Tae Choon Park, Daejeon (KR); Young Seok Kang, Daejeon (KR); Jae Sung Huh, Daejeon (KR); and Doo Yong Lee, Daejeon (KR)
Assigned to Korea Aerospace Research Institute, Daejeon (KR)
Appl. No. 17/254,994
Filed by KOREA AEROSPACE RESEARCH INSTITUTE, Daejeon (KR)
PCT Filed May 27, 2019, PCT No. PCT/KR2019/006317
§ 371(c)(1), (2) Date Dec. 22, 2020,
PCT Pub. No. WO2019/245178, PCT Pub. Date Dec. 26, 2019.
Claims priority of application No. 10-2018-0071924 (KR), filed on Jun. 22, 2018.
Prior Publication US 2021/0260281 A1, Aug. 26, 2021
Int. Cl. A61M 5/168 (2006.01)
CPC A61M 5/16877 (2013.01) [A61M 5/16804 (2013.01); A61M 5/16813 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An infusion flow regulator comprising:
a main body including an inlet through which fluid is introduced and an outlet through which the fluid is discharged; and a rotary dial rotatably coupled to the main body, with a sealing member interposed therebetween, so as to regulate a flow rate of the fluid,
wherein the rotary dial includes a regulating flow path shaped as a recessed groove having a first width and a first depth at a given cross section, and
the regulating flow path includes:
a first region in which the first width of the recessed groove remains constant in a first arcuate direction and the first depth of the recessed groove is decreased in the first arcuate direction, and
a second region in which the first width of the recessed groove is decreased in the first arcuate direction and the first depth of the recessed groove is decreased in the first arcuate direction, and
wherein the second region begins at a point where the first depth of the recessed groove becomes equal in value to the first width of the recessed groove.
 
7. An infusion flow regulator comprising:
a main body including an inlet through which fluid is introduced and an outlet through which the fluid is discharged; and a rotary dial rotatably coupled to the main body, with a sealing member interposed therebetween, so as to regulate a flow rate of the fluid,
wherein the rotary dial includes a regulating flow path shaped as a recessed groove having a first width and a first depth at a given cross section, and
the regulating flow path includes:
a first region in which the first width of the recessed groove remains constant in a first arcuate direction and the first depth of the recessed groove is decreased in the first arcuate direction, and
a second region in which the first width of the recessed groove is decreased in the first arcuate direction and the first depth of the recessed groove is decreased in the first arcuate direction.