US 12,433,601 B2
Indwelling clip
Tatsurou Sugitani, Tokyo (JP); Hikaru Mizuno, Tokyo (JP); and Masakazu Ninomiya, Tokyo (JP)
Assigned to Zeon Corporation, Tokyo (JP)
Appl. No. 17/043,547
Filed by ZEON CORPORATION, Tokyo (JP)
PCT Filed Mar. 29, 2019, PCT No. PCT/JP2019/014279
§ 371(c)(1), (2) Date Sep. 29, 2020,
PCT Pub. No. WO2019/189863, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 2018-068989 (JP), filed on Mar. 30, 2018.
Prior Publication US 2021/0113210 A1, Apr. 22, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/122 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/122 (2013.01) [A61B 17/1227 (2013.01); A61B 90/39 (2016.02); A61B 2090/3941 (2016.02); A61B 2090/3979 (2016.02)] 10 Claims
OG exemplary drawing
 
1. An indwelling clip comprising:
a pair of arm plate portions configured to be opened in a substantially V shape with an elastic force;
claw portions formed on respective tip portions of the arm plate portions; and
a fastening ring attached to the arm plate portions so as to be movable along a longitudinal direction of the pair of arm plate portions and be able to close the pair of arm plate portions by moving in a direction toward the claw portions,
wherein at least one of the arm plate portions is provided with a fluorescent body containing a fluorescent pigment emitting red or near infrared light by being irradiated with excitation light,
wherein the fluorescent body comprises:
a first end directly coupled to a corresponding one of the arm plate portions,
a second free end opposing the first end and not directly coupled to the corresponding arm plate portion, and
an intermediate point disposed between the first end and the second free end, the intermediate point directly contacting and overlapping the tip portion of the corresponding plate portion,
wherein the fluorescent body comprises a tip protruding portion extending distally beyond a corresponding one of the claw portions to the second free end of the fluorescent body, wherein the ratio L1/L of a protrusion length L1 from the tip portion of the corresponding arm plate portion to a total length L of the fluorescent body is 0.15 or more,
wherein the distance between the first end and the second free end defines the total length L of the fluorescent body, wherein the distance between the intermediate point and the second free end of the fluorescent body defines protrusion length L1, and
wherein the corresponding claw portion extends in an angle from the tip portion of the corresponding arm plate portion that overlaps the intermediate point of the fluorescent body.