METAL VASCULAR CLAMP CAPABLE OF BEING DIRECTIONALLY DEGRADED AND ABSORBED AND MANUFACTURING METHOD THEREFOR

Title:

METAL VASCULAR CLAMP CAPABLE OF BEING DIRECTIONALLY DEGRADED AND ABSORBED AND MANUFACTURING METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2015/158196

Kind Code:

A1

Abstract:

A metal vascular clamp capable of being directionally degraded and absorbed and a manufacturing method therefor. The vascular clamp comprises an upper arm (2), a lower arm (3) and a tail O-shaped structure (4) all used for closing a blood vessel (1). A V-shaped structure is formed by the upper arm (2), the lower arm (3) and the tail O-shaped structure (4) before closing. The end of the upper arm (2) and the end of the lower arm (3) are provided with self-locking structures (5, 6) matched with each other. When the metal vascular clamp is used, the blood vessel needing to be closed is placed in a gap between the upper arm (2) and the lower arm (3) of the V-shaped structure, and the upper arm (2) and the lower arm (3) are squeezed to enable the included angle therebetween to be gradually decreased until the self-locking structures (5, 6) of the upper arm and the lower arm are mutually locked and closed. The outer side and the inner side of the upper arm (2) and the outer side and the inner side of the lower arm (3) are provide with different microstructures and electric potential differences, the grains on the outer sides are dimensionally larger than the grains on the inner sides and the electric potential differences on the outer sides are lower than the electric potential differences on the inner sides, so that directional degradation from the outer side to the inner side is achieved after the vascular clamp is closed. Through the change of the tissue structure differences of different parts of the material of the vascular clamp in a directional way, the electric potential differences thereof can be changed, and thus the directional degradation in different orders of degradation is achieved.

Inventors:

LIU JINGYI (CN)
ZHANG SHAOXIANG (CN)
ZHANG YUANZHUANG (CN)
JIANG MAN (CN)
XU HAIDONG (CN)
ZHAO CHANGLI (CN)
ZHANG XIAONONG (CN)

Application Number:

PCT/CN2015/074834

Publication Date:

October 22, 2015

Filing Date:

March 23, 2015

Export Citation:

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Assignee:

SUZHOU ORIGIN MEDICAL TECHNOLOGY CO LTD (CN)

International Classes:

A61B17/12

Foreign References:

CN103892884A	2014-07-02
CN201185950Y	2009-01-28
CN1954781A	2007-05-02
CN202288387U	2012-07-04
DE102004015224A1	2005-10-06
US4476865A	1984-10-16
US4579118A	1986-04-01

Other References: