SCIVITA MEDICAL TECHNOLOGY CO., LTD.;苏州新光维医疗科技有限公司
发明人:
ZHANG, Yi,张一,CHIN, To,陈东
申请号：
CNCN2019/116437
公开号：
WO2020/094108A1
申请日:
2019.11.08
申请国别(地区):
CN
年份:
2020
代理人:
摘要：
Discloses is an endoscopic insertion portion structure, wherein same belongs to the technical field of the structure of internal tubes of medical appliances, and solves the technical problem of unstable deflection of a tail end of a ureter. The endoscopic insertion portion structure comprises a catheter body (1). The catheter body (1) comprises a stepped braided tube (2), a bending tube (3) and a plastic catheter head (14) joined to each other, wherein a joint between the stepped braided tube (2) and the bending tube (3) is sleeved with a first stainless steel outer tube (4), and the first stainless steel outer tube (4) is coated with a first PET heat-shrinkable thin film (5)； a second stainless steel outer tube (6) is connected between the bending tube (3) and the plastic catheter head (14), and the second stainless steel outer tube (6) is coated with a second PET heat-shrinkable thin film (7)； a traction wire (8) is provided inside the catheter body (1), with one end of the traction wire (8) being fixed to the bending tube (3), and the other end thereof passing out of the stepped braided tube (2)； and a heat-shrinkable sleeve (9) is arranged outside the bending tube (3). A tail end of a ureter can be subjected to independent multi-section bending and a better detection effect can be realized.L'invention concerne une structure de partie d'insertion endoscopique, qui relève du domaine technique de la structure des tubes internes d'appareils médicaux, et résout le problème technique de la déviation instable de l'extrémité arrière d'un uretère. La structure de partie d'insertion endoscopique comprend un corps de cathéter (1). Le corps de cathéter (1) comprend un tube tressé étagé (2), un tube de cintrage (3) et une tête de cathéter en plastique (14) reliés les uns aux autres, un joint entre le tube tressé étagé (2) et le tube de cintrage (3) est gainé d'un premier tube externe en acier inoxydable (4), et le premier tube externe en acier inoxydable (4) est revêtu d'un
