Vascular stent
By designing the elasticity difference between the anchoring section and the main body section in the vascular stent and optimizing the wave coil structure, the problem of marginal stenosis in vascular stents when reducing radial resistance is solved, achieving effective support and protection for blood vessels.
CN116531152BActive Publication Date: 2026-07-03SHANGHAI VASOLUTIONS MEDTECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI VASOLUTIONS MEDTECH CO LTD
- Filing Date
- 2022-01-26
- Publication Date
- 2026-07-03
Smart Images
Figure CN116531152B_ABST
Abstract
This invention relates to a vascular stent, comprising a main segment and anchoring segments connected to both ends of the main segment. The anchoring segments are used to anchor to the inner wall of the blood vessel, such that the main segment is confined within the blood vessel. Under the same change in gripping diameter, the elastic force generated per unit length of the anchoring segment is less than the elastic force generated per unit length of the main segment. The vascular stent of this invention, by providing anchoring segments at both ends of the main segment, and under the same degree of gripping, the elastic force generated per unit length of the anchoring segment is less than the elastic force generated per unit length of the main segment, thereby maximizing the radial resistance of the main segment to maintain support for the inner wall of the blood vessel. Simultaneously, it reduces the chronic outward expansion force of the anchoring segments, thereby reducing the continuous damage caused by the end-position anchoring of the blood vessel after stent implantation, and lowering the probability of marginal stenosis.
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