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1. (WO2018128388) DISPOSABLE NEEDLE BIOPSY DEVICE AND NEEDLE STRUCTURE OF CUTTING BIOPSY APPARATUS

Pub. No.:    WO/2018/128388    International Application No.:    PCT/KR2018/000123
Publication Date: Fri Jul 13 01:59:59 CEST 2018 International Filing Date: Thu Jan 04 00:59:59 CET 2018
IPC: A61B 10/02
Applicants: KO, Hyung Jin
고형진
Inventors: KO, Hyung Jin
고형진
Title: DISPOSABLE NEEDLE BIOPSY DEVICE AND NEEDLE STRUCTURE OF CUTTING BIOPSY APPARATUS
Abstract:
An embodiment of the present invention discloses a disposable cutting biopsy device comprising: a housing which is formed in a tubular shape and has a sliding space formed inside thereof; a needle set which is disposed inside the housing through a hole on the front portion of the housing and comprises an inner needle and an outer needle, wherein the inner needle has a tissue extraction groove for extracting tissue, and the outer needle has a blade on the front end thereof so as to cut tissue received in the tissue extraction groove and is formed to cover up the inner needle so as to reciprocate on the outer circumference of the needle; a sliding block which is connected to the outer needle and is disposed to reciprocate forward and backward within the sliding space; a loading unit which is connected to the sliding block so as to launch the sliding block; and a loading handle which is disposed to be connected to the loading unit. When the sliding block moves backwards, a first negative pressure space is formed at the front portion of the sliding space, and when the sliding bock moves forwards, a second negative pressure space is formed at the rear portion of the sliding space.