TREATMENT DEVICE FOR ENDOSCOPE

摘要

An endoscopic treatment device includes: an elongated needle pipe having flexibility; a hollow shape section having an inner cavity formed in a distal end section of the needle pipe, and a side hole formed on an outer side surface of the needle pipe and communicating with the inner cavity; a piercing section provided closer to a distal end side of the needle pipe than the hollow shape section and formed with a pointed tip; a collection member including a cutting edge section having a pointed shape toward a radial outer direction of the needle pipe and protruding and retracting between a position where the cutting edge section is housed in the hollow shape section and a position where the cutting edge section protrudes from the side hole; and an operating member advanceable and retractable relative to the needle pipe and including a distal end portion connected to the collection member.

主权项

1. A treatment device for an endoscope comprising:
a needle pipe having flexibility and formed in an elongated shape; a hollow shape section having an inner cavity formed in a distal end section of the needle pipe, and a side hole that is formed on an outer side surface of the needle pipe and communicates with the inner cavity; a piercing section provided closer to a distal end side of the needle pipe than the hollow shape section and formed with a pointed tip; a collection member including a cutting edge section that is formed in a pointed shape toward a radial outer direction of the needle pipe and is configured to protrude and retract between a position at which the cutting edge section is housed in the hollow shape section and a position at which the cutting edge section protrudes from the side hole; and an operating member including a distal end portion connected to the collection member, the operating member being provided so as to be advanceable and retractable relative to the needle pipe, wherein the cutting edge section protrudes from the side hole when the operating member is displaced relative to the needle pipe.