Patent ID: 8052660

Claim:
A liquid applicator for an endoscope configured to apply liquid to in vivo tissue, comprising: a flexible tube configured to be inserted into and extracted from a treatment tool insertion channel of the endoscope; a brush member comprising a plurality of bundled pinfeathers arranged in layers and affixed to each other and on an inside of and protruding distally outward from a distal end of the flexible tube, the brush member formed in a convergent tapered shape and comprising: an adhesively hardened portion configured such that the plurality of pinfeathers are affixed to each other throughout the entirety of the hardened portion, the hardened portion ending at the distal end of the flexible tube; and a liquid passing opening formed by the hardened portion and which passes through the hardened portion along a center axis line of the brush member; and a fluid channel formed in the flexible tube to supply the liquid to the brush member, wherein the flexible tube is longer than the treatment tool insertion channel, wherein a distal end portion of the brush member is in communication with the fluid channel.