Degradable vascular stent structure with negative Poisson ratio
A technology of vascular stent and negative Poisson's ratio, applied in the field of degradable vascular stent structure, to avoid long-term retention
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[0019] The detailed content of the present invention and its specific implementation will be further described below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0020] see figure 1 , figure 1 It is a schematic diagram of the concave hexagonal basic structure unit in the negative Poisson's ratio degradable vascular stent structure provided in the present invention. The concave hexagonal structure is formed by the side 1 and the side 2, and the side 3 plays the role of connecting each concave hexagonal basic structure unit along the axial direction of the bracket. Side 1 and side 3 are parallel to the axial direction of the support, and side 2 is in a concave folded state.
[0021] see figure 1 , when side 3 is stretched, side 2 in the concave folded state will gradually open, resulting in a length L Z reduced, length ...
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