Title:
DRIVE SWITCHING MECHANISM FOR STAPLER, AND STAPLER
Document Type and Number:
WIPO Patent Application WO/2022/021545
Kind Code:
A1
Abstract:
A drive switching mechanism for a stapler, the drive switching mechanism comprising an execution drive assembly (1) and a handle drive assembly. The execution drive assembly (1) comprises a drive sleeve (11) and a push blade drive rod (12). The drive sleeve (11) is used for driving an end portion actuator (4) to perform a closing action, and the push blade drive rod (12) is used for driving the end portion actuator (4) to perform a stapling action. The handle drive assembly comprises a drive handle (2) and a blade handle drive assembly (3). The blade handle drive assembly (3) comprises a push blade piece (31) and a handle drive connector (32). The handle drive connector (32) is connected to a handle drive portion (21). The push blade piece (31) is movably connected to the handle drive connector (32), and is capable of moving relative to the handle drive connector (32) to a push blade position or a drive disengagement position. When the push blade piece (31) is at the push blade position, the push blade piece (31) and the push blade drive rod (12) abut against each other during the movement of the handle drive portion (21) towards a second position. By using the push blade piece (31) capable of switching positions, different execution actions can be performed when the handle is driven by means of simple connecting rod cooperation. Compared with existing techniques, the present structure is simpler and more reliable.
Inventors:
CAO XINDONG (CN)
LU JIAN (CN)
LU JIAN (CN)
Application Number:
PCT/CN2020/114281
Publication Date:
February 03, 2022
Filing Date:
September 09, 2020
Export Citation:
Assignee:
SUZHOU BEINUO MEDICAL INSTR CO LTD (CN)
International Classes:
A61B17/072; A61B17/3209
Foreign References:
| CN101317780A | 2008-12-10 | |||
| CN209269765U | 2019-08-20 | |||
| CN204708913U | 2015-10-21 | |||
| CN106618655A | 2017-05-10 | |||
| CN105935305A | 2016-09-14 | |||
| US20190307448A1 | 2019-10-10 |
Attorney, Agent or Firm:
SUZHOU RUIHAO INTELLECTUAL PROPERTY AGENCY (CN)
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