Search International and National Patent Collections

1. (WO2018221666) BIOLOGICAL TISSUE ADHESIVE APPLICATION TOOL AND DRUG SOLUTION INJECTION TOOL FOR LIVING BODY

Pub. No.:    WO/2018/221666    International Application No.:    PCT/JP2018/020995
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Fri Jun 01 01:59:59 CEST 2018
IPC: A61B 17/00
Applicants: SUMITOMO BAKELITE CO., LTD.
住友ベークライト株式会社
Inventors: SUZUKI Zenetsu
鈴木 善悦
KANAZAWA Takashi
金澤 尚
HARATA Shinetsu
原田 新悦
Title: BIOLOGICAL TISSUE ADHESIVE APPLICATION TOOL AND DRUG SOLUTION INJECTION TOOL FOR LIVING BODY
Abstract:
The problem addressed by the present invention is to make it possible to realize drug solution clogging prevention in the distal end portion of a drug solution flow path at low cost by a simple structure and to suppress a gap in the plunger pushing depth when restarting drug solution discharge after drug solution discharge has been stopped to improve the operating performance. A biological tissue adhesive application tool is equipped with a nozzle body (2) having a space (2s) inside and a plurality of drug solution flow pipes (3)(4) that cause a drug solution to flow through the space (2s) in the nozzle body (2). The nozzle body (2) is provided with a gas jet portion (2h) that shoots gas and sprays and mixes the drug solution ejected from a drug solution ejection portion (2e) in the form of a mist. The drug solution flow pipes (3)(4) communicate with a drug solution injection portion (2d) and the drug solution ejection portion (2e). The drug solution flow pipe (3) is provided with a balloon (3c) that contracts due to external pressure caused by introduction of a gas feed from a gas injection portion into the space (2s) and is restored when the external pressure decreases.