US 12,150,643 B2
Endoscopic treatment device
Takuya Okumura, Hamburg (DE); Kunihide Kaji, Hachioji (JP); and Nobuko Matsuo, Hachioji (JP)
Assigned to OLYMPUS CORPORATION, Tokyo (JP)
Filed by OLYMPUS CORPORATION, Tokyo (JP)
Filed on Jan. 13, 2022, as Appl. No. 17/574,848.
Application 17/574,848 is a continuation of application No. PCT/JP2019/027894, filed on Jul. 16, 2019.
Prior Publication US 2022/0133295 A1, May 5, 2022
Int. Cl. A61B 17/08 (2006.01); A61B 17/04 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/0482 (2013.01) [A61B 17/0469 (2013.01); A61B 17/08 (2013.01); A61B 2017/00818 (2013.01); A61B 2017/0472 (2013.01); A61B 2017/081 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A tissue traction device, comprising:
a first needle connected to a distal end of a first thread;
a second needle connected to a distal end of a second thread;
an elongated main body connected to the first thread and extending between the first thread and the second thread, the main body being elastically deformable;
a tube disposed at a proximal end of the main body;
a traction member having a distal end connected to a distal end portion of the main body, the traction member extending from the distal end portion of the main body toward a distal end of the tube;
wherein the main body includes an intermediate portion between the distal end portion of the main body and a proximal end portion of the main body, and
when the traction member is pulled while a distal end of the tube is in contact with the proximal end portion, the intermediate portion is elastically deformed to a bent shape.