Korea Institute of Science and Technology

Medicaretec Co., Ltd.

Seong Il Kwon

Keri Kim

Jeongryul Kim

Yonghwan Moon

Chun Woo Kim

Heechul Kim

Han Yong Chun

A catheter having a variable front end structure includes: a tube having an insertion path passing therethrough in a longitudinal direction thereof and one or more first incised slits extending by a given length from the front end side thereof toward the rear end side thereof; an imaging part placed on top of the tube between the one or more first incised slits and aligned in a line with the insertion path on the front end of the insertion path; a front end part made of a flexible material and adapted to surround the outer peripheries of the front ends of the imaging part and the tube; and a tool inserted into the insertion path, wherein the front end part comprises a second incised slit formed at a position distant by a given distance from the front end side thereof toward the rear end side thereof and extending in a width direction thereof.

Catheter having variable front end part structure

An operation apparatus for performing an operation by steering an end effector includes a wire which is connected to the end effector to steer the end effector, and a tension compensator which is connected with the wire, wherein in an operating state, the tension compensator changes a shape or position in response to tension of the wire to keep the wire tight, and when the wire is pulled to steer the end effector, the tension compensator is shifted to a lock state in which the shape or position is not changed.

Operation apparatus having tension compensating mechanism of wire for steering end effector

An articulating structure includes a joint unit including a front segment and a rear segment that are connected in series and perform relative rotation with respect to a rotation portion, and an elastic member interposed between the front segment and the rear segment, and a wire that passes through the front segment and the rear segment in a lengthwise direction of the joint unit, wherein the front segment rotates relative to the rear segment in one direction when the wire is pulled rearward, and the elastic member elastically deforms by a pressing force by the rotation of the front segment to provide a force that resists the pressing force.

Articulating structure having elastic member and tube inserting device having the same

There is disclosed an articulating structure that is steered by relative movement of a plurality of segments connected in series, the articulating structure including a first segment and a second segment arranged in contact with each other, wherein contact surfaces of the first segment and the second segment are rolling contact surfaces in line contact on a first direction contact line, the first segment has a pin on a side, the second segment has a coupling hole into which the pin is inserted, the first segment and the second segment make a relative rolling movement for translation of the first direction contact line while maintaining the line contact, and the coupling hole is formed with a larger area than the pin to allow the pin to make a relative position movement within the coupling hole during the rolling movement.

Articulating structure using rolling joint and pin coupling, and tube insert device having the same

An articulating structure that bends by relative movement of a plurality of segments connected in series, includes a first segment and a second segment arranged in contact with each other, wherein the first segment has a first front rolling contact surface, and the second segment has a second rear rolling contact surface in line contact with the first front rolling contact surface on a first direction contact line, the first segment has a projection protruding forward from the first front rolling contact surface, and the second segment has a coupling element recessed in the second rear rolling contact surface, wherein the projection is inserted into the coupling element, the first segment and the second segment make a relative rolling movement for translation of the first direction contact line while maintaining the line contact, and the projection supports the first segment and the second segment for the first direction.

Articulating structure using rolling joint and projection member, and tube insert device having the same

A laser operation device includes an elongated catheter, a light irradiator configured to irradiate a laser in front of a tip of the catheter, a lens disposed at a front of the light irradiator and allowing the laser to pass therethrough, a wire configured to steering the lens by pulling one side of the lens, and an elastic body configured to give an elastic force to restore the lens against a tension of the wire, wherein when the lens is steered, the laser passes through the lens and is refracted.

Growing community of inventors

Seoul, South Korea

Seong Il Kwon