KNOT-TYING DEVICE AND KNOT-TYING SYSTEM HAVING KNOT-TYING DEVICE - BEIJING MED ZENITH MEDICAL SCIENT CO LTD

Title:

KNOT-TYING DEVICE AND KNOT-TYING SYSTEM HAVING KNOT-TYING DEVICE

Document Type and Number:

WIPO Patent Application WO/2017/206431

Kind Code:

A1

Abstract:

Disclosed are a knot-tying device and a knot-tying system having the knot-tying device. The knot-tying device comprises a shear knife (18) disposed at a front end of the delivery rod (6). A handle of the shear knife (18) is opened by means of an elastic member, and the handle is pressed by the delivery rod (6) to close and cut a suture. The shear knife (18) is used as a substitute for a cutter in the prior art, and the shear knife (18) is driven to close by means of the delivery rod (6) so as to realize a shearing function. When a suture is cut off by the shear knife (18), the requirements for the sharpness of the blade are greatly reduced, and cutting can be realized by common processing methods, thereby greatly reducing costs while ensuring reliability. In addition, the abrasion on the blade from the suture is reduced, thereby greatly prolonging the service life of the product and being able to realize a suture-cutting function in a faster and better manner after knot-tying.

Inventors:

MENG JIAN (CN)
XIE BAOQI (CN)
MA ZHIWEI (CN)
ZHANG ZHIWU (CN)
DOU SHENGBO (CN)
ZHOU XIAOJUN (CN)
WU KANG (CN)
KE DANIAN (CN)

Application Number:

PCT/CN2016/104009

Publication Date:

December 07, 2017

Filing Date:

October 31, 2016

Export Citation:

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Assignee:

BEIJING MED ZENITH MEDICAL SCIENT CO LTD (CN)

International Classes:

A61B17/04

Domestic Patent References:

WO2015151627A1

2015-10-08

Foreign References:

CN205814366U	2016-12-21
CN202892020U	2013-04-24
CN204723113U	2015-10-28
CN204016382U	2014-12-17
EP1832236A2	2007-09-12
US8702730B2	2014-04-22
US20040254598A1	2004-12-16

Other References: