US 12,280,201 B2
Otitis media treatment instrument
Hanyoung Lee, Goyang-si (KR); Yong Joon Seo, Wonju-si (KR); and Ho Sung Cho, Busan (KR)
Assigned to UNIVERSITY INDUSTRY FOUNDATION, YONSEI UNIVERSITY WONJU CAMPUS, Wonju-si (KR); and J&KYM CO., LTD., Gimhae-si (KR)
Filed by UNIVERSITY INDUSTRY FOUNDATION, YONSEI UNIVERSITY WONJU CAMPUS, Wonju-si (KR); and J&KYM CO., LTD., Gimhae-si (KR)
Filed on Nov. 9, 2022, as Appl. No. 17/983,692.
Application 17/983,692 is a continuation of application No. 16/651,036, filed on May 29, 2020, granted, now 11,529,261.
Prior Publication US 2023/0201444 A1, Jun. 29, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 1/00 (2006.01); A61F 11/20 (2022.01)
CPC A61M 1/84 (2021.05) [A61F 11/202 (2022.01); A61M 2210/0668 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An otitis media treatment instrument installing a ventilation tube, the otitis media treatment instrument comprising:
a handle;
a cutting sheath connected to the handle and being configured in a tube shape, the cutting sheath having an inner diameter larger than an outer diameter of the ventilation tube, and wherein the ventilation tube is inserted therein; and
a suction pipe formed to be able to move relative to the cutting sheath inside the cutting sheath along a longitudinal direction of the cutting sheath, wherein the suction pipe is configured in a tube shape so that an exudate in a middle ear is sucked and removed through the suction pipe; and
a moving unit being located outside of the handle and moving the suction pipe relative to the cutting sheath,
wherein the suction pipe comprises an insertion portion having an outer surface contacted with an inner surface of the ventilation tube on a front end portion of the suction pipe, and a protrusion protruding from a rear end position of the insertion portion,
wherein the suction pipe is connected with a suction unit that enables the suction pipe to have a suction force,
wherein the suction pipe is inserted into the ventilation tube thereby coupling to the ventilation tube,
wherein the ventilation tube is inserted into an eardrum by the movement of the suction pipe by the moving unit while one end of the ventilation tube is supported by the protrusion of the suction pipe,
wherein the cutting sheath is configured to incise the eardrum by a front end of the cutting sheath, and
wherein at least a portion of the front end of the cutting sheath is configured to protrude from an end of the suction pipe and an end of the ventilation tube, and the suction pipe or the ventilation tube is configured to remain located inside the cutting sheath, so that the suction pipe or the ventilation tube does not interfere with the incising operation of the eardrum.