US 12,239,557 B2
Drug supply device
Takuya Okumura, Tokyo (JP); Shunsuke Motosugi, Tokyo (JP); Shinji Takahashi, Tokyo (JP); and Hiroyuki Morishita, Tokyo (JP)
Assigned to OLYMPUS CORPORATION, Tokyo (JP)
Filed by OLYMPUS CORPORATION, Tokyo (JP)
Filed on Sep. 16, 2020, as Appl. No. 17/022,814.
Application 17/022,814 is a continuation of application No. PCT/JP2018/014660, filed on Apr. 6, 2018.
Prior Publication US 2020/0405518 A1, Dec. 31, 2020
Int. Cl. A61F 2/958 (2013.01); A61B 17/00 (2006.01); A61B 17/12 (2006.01); A61B 90/00 (2016.01); A61F 2/90 (2013.01); A61M 25/10 (2013.01)
CPC A61F 2/958 (2013.01) [A61B 17/00234 (2013.01); A61B 17/12136 (2013.01); A61B 90/08 (2016.02); A61B 2017/00296 (2013.01); A61B 2017/00827 (2013.01); A61B 17/12045 (2013.01); A61B 17/12168 (2013.01); A61B 2090/0811 (2016.02); A61M 2025/105 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A device comprising:
a tube body having a longitudinal axis;
a first expansion member configured to be expanded to a first outer diameter and a second expansion member configured to be expanded to a second outer diameter that is greater than the first outer diameter of the first expansion member, the first expansion member and the second expansion member being positioned on a distal-end side of the tube body and disposed with a spacing between each other in a direction along the longitudinal axis; and
a masking member that includes a distal-end portion and a proximal-end portion, that extends along the longitudinal axis between the first expansion member and the second expansion member, in which the proximal-end portion is connected to an outer surface of the first expansion member, and in which the distal-end portion is connected to an outer surface of the second expansion member,
wherein
the masking member is formed in an arc shape in a lateral cross-section that is orthogonal to the longitudinal axis, and,
in a state in which the first expansion member and the second expansion member are expanded, the masking member stretches between the first expansion member and the second expansion member.