摘要:
The present invention discloses a stent that is designed to be easily removed from a lumen such as an esophagus, a blood vessel, or other organs of a human body without performing a surgical operation. The stent of the present invention includes an elastic body unit that is formed in a cylindrical shape and has an elastic force and a covering unit that is combined with or coated on the elastic body unit. The covering unit includes an extending portion that is separated from an end portion of the elastic body unit.
摘要:
A method of manufacturing a stent includes forming a first cylindrical mesh structure by bending a first member in a zigzag-shape having peaks and valleys and a plurality of turns wound around an outer circumference of a manufacturing frame and forming a second cylindrical mesh structure by bending a second member in a zigzag-shape having peaks and valleys and a plurality of turns wound around an outer circumference of a manufacturing frame, wherein a bending track the second member crosses a bending track of the first member.
摘要:
Disclosed herein is a catheter for a common hepatic duct capable of inserting a stent into a bile duct, a gall bladder, and the like using endoscopic ultrasound (EUS). According to an exemplary embodiment of the present invention, the catheter for a common hepatic duct includes: an inner guide tube (1); a perforator (3) coupled with a front end of the inner guide tube (1); a pressing member (5) coupled with the inner guide tube (1) while maintaining a predetermined interval from the perforator (3); a stent (7) disposed between the perforator (3) and the pressing member (5) and on an outer circumferential surface of the inner guide tube (1); and an outer guide tube (9) disposed on the outer circumferential surface of the inner guide tube (1); wherein the perforator (3) has a cone shape or a polygonal cone shape and is formed so that a distance from a central line to an outside is reduced toward the front end based on the central line in a length direction.
摘要:
The present invention provides a medical stent with a stopper (3) which can be inserted into lumens of a human such as the duodenum, the colon, the biliary tract, and the esophagus, and that is useful for lesions due to stricture caused by benign and malignant tumors. The medical stent with stoppers of the present invention includes a body (1) having a cylindrical shape meshed with an elastic member and having an internal passage, and stoppers (3) forming portions of the body and preventing the body from moving in a lesion, in which the body has a first elastic part (5) at the center thereof, a pair of second elastic parts (7) disposed at respective sides of the first elastic part and extending from the first elastic part, third elastic parts (9) disposed outside of the second elastic parts and extending from the second elastic parts, and fourth elastic parts (11) disposed outside of the third elastic parts, extending from the third elastic parts, and forming ends of the body, the stopper composed of the second elastic parts and the fourth elastic part, and the second elastic parts being larger in diameter than the first elastic part and the third elastic parts.
摘要:
Disclosed herein is a catheter for a common hepatic duct capable of inserting a stent into a bile duct, a gall bladder, and the like using endoscopic ultrasound (EUS). According to an exemplary embodiment of the present invention, the catheter for a common hepatic duct includes: an inner guide tube (1); a perforator (3) coupled with a front end of the inner guide tube (1); a pressing member (5) coupled with the inner guide tube (1) while maintaining a predetermined interval from the perforator (3); a stent (7) disposed between the perforator (3) and the pressing member (5) and on an outer circumferential surface of the inner guide tube (1); and an outer guide tube (9) disposed on the outer circumferential surface of the inner guide tube (1); wherein the perforator (3) has a cone shape or a polygonal cone shape and is formed so that a distance from a central line to an outside is reduced toward the front end based on the central line in a length direction.