Clip unit and ligation device using the same

摘要

A clip unit for ligating a biological body includes: a clip body having a pair of arm parts; and a fastening ring arranged in an outside of the clip body, and configured to fasten the arm parts, in which: the fastening ring includes a flap part configured to expand diametrically outward from the fastening ring, and a flap retaining unit configured to retaining an expansion extent of the flap part at a given extent.

主权项

1. A clip unit for lighting a biological body comprising:
a clip body having a pair of arm parts; and a fastening ring arranged in an outside of the clip body, and configured to fasten the arm parts, wherein: the fastening ring includes a flap part configured to expand diametrically outward from the fastening ring, and a flap retaining unit configured to retain the flap part, and the flap retaining unit engages with the flap part, to restrain the flap part from expanding diametrically outward from the fastening ring wherein the flap part is cantilevered on a ring part of the fastening ring to extend along a longitudinal axis of the fastening ring, and the flap part is elastically biased diametrically outward from the fastening ring, wherein the fastening ring is configured by combining an inner fastening ring configured to support the flap part, and an outer fastening ring configured to cover the outside of the inner fastening ring and provided with a flap protruding hold which is formed on a peripheral surface of the outer fastening ring and extends along the longitudinal axis of the fastening ring and the flap retaining unit retains the flap part in a state where the flap part protrudes diametrically outward from the flap protruding hole.