US 12,076,231 B2
Intraocular lens injector
Masahiro Noda, Toda (JP); and Yoshitaka Watanabe, Tokyo (JP)
Assigned to Hoya Corporation, Tokyo (JP)
Appl. No. 17/055,253
Filed by Hoya Corporation, Tokyo (JP)
PCT Filed Apr. 25, 2019, PCT No. PCT/JP2019/017743
§ 371(c)(1), (2) Date Feb. 13, 2021,
PCT Pub. No. WO2019/225292, PCT Pub. Date Nov. 28, 2019.
Claims priority of application No. 2018-100534 (JP), filed on May 25, 2018.
Prior Publication US 2021/0161653 A1, Jun. 3, 2021
Int. Cl. A61F 2/16 (2006.01)
CPC A61F 2/167 (2013.01) 14 Claims
OG exemplary drawing
 
1. An intraocular lens injector, comprising:
a hollow body having a lens setting portion on which an intraocular lens is set such that when an optical surface of the intraocular lens faces upwardly the optical surface faces in an A direction;
a plunger that moves through an inside of the hollow body in an axial direction of the hollow body;
a pushing member that pushes out the intraocular lens from the lens setting portion by moving together with the plunger, through the inside of the hollow body, and toward front part of the axial direction of the hollow body;
a first flange, integrally formed with the hollow body, that protrudes in the A direction from an outer circumferential surface of the hollow body when viewed in the axial direction and is configured to receive a finger on a tip end side thereof; and
a second flange arranged on a rear end side with respect to the first flange and that protrudes in an A′ direction, which is opposite the A direction, from the outer circumferential surface of the hollow body when viewed in the axial direction and is configured to receive a finger on a tip end side thereof,
wherein the hollow body is configured so that a shape on the A direction side toward a center of gravity of the hollow body in which the first flange is arranged from a center of the hollow body and a shape on the A′ direction side are non-symmetrical when viewed from the axial direction, and
the first flange is configured not to protrude toward the A′ direction, or configured so that a protruding distance of the first flange toward the A′ direction is smaller than a protruding distance of the first flange toward the A direction and smaller than a protruding distance of the second flange toward the A′ direction.