COVIDIEN (CHINA) MEDICAL DEVICES TECHNOLOGY CO., LTD.;COVIDIEN LP
发明人:
WANG, Zhaokai,ZHANG, Jiangfeng,ZHANG, Xiliang
申请号：
CNCN2015/079659
公开号：
WO2016/187770A1
申请日:
2015.05.25
申请国别(地区):
CN
年份:
2016
代理人:
摘要：
A surgical stapling device (10) includes an outer tube (14) having a proximal body portion (70) and a distal channel portion (74). A distal end (80) of the proximal body portion (70) defines a pair of cutouts (82). An anvil assembly (22) includes an anvil body (26) defining a tissue contact surface (30) and a pair of pivot members (40) which are supported within the cutouts (82). A staple cartridge (44) is supported in the distal channel portion (74) of the outer tube (14) and defines a tissue contact surface (44a). The cutouts (82) are dimensioned to allow movement of the pivot members (40) within the cutouts (82) to allow the tissue contact surface (30) of the anvil body (26) to move in relation to the tissue contact surface (44a) of the staple cartridge (44) from a "parked position" in which the tissue contact surfaces (30, 44a) are in juxtaposed engagement to a "clamped position" in which the tissue contact surfaces (30, 44a) defining a tissue gap (G). A drive member (62) is provided that is formed from sheet metal and includes upper and lower extending members (90, 92) that are positioned to engage the anvil body (26) and the distal channel portion (74) to define a maximum tissue gap (G) between the tissue contact surfaces (30, 44a) of the anvil body (26) and the staple cartridge (44).Un dispositif d'agrafage chirurgical (10) comprend un tube extérieur (14) comportant une partie corps proximale (70) et une partie canal distale (74). L'extrémité distale (80) de la partie corps proximale (70) délimite une paire de découpes (82). Un ensemble enclume (22) comprend un corps d'enclume (26) délimitant une surface de contact avec les tissus (30) et une paire d'éléments pivots (40) qui sont supportés à l'intérieur des découpes (82). Une cartouche d'agrafes (44) est supportée dans la partie canal distale (74) du tube extérieur (14) et délimite une surface de contact avec les tissus (44a). Les découpes (82) sont d'une dimension telle à permettre le mouvement des éléments
