一种双层可载粒子支架输送器

By designing a double-layer particle-carrying support conveyor, which adopts a combination structure of inner and outer cylindrical supports and a control handle and developing ring, the problem of requiring two sets of conveyors for releasing double-layer supports in the existing technology is solved, achieving precise release and cost savings.

CN116898645BActive Publication Date: 2026-07-17NANJING RONGSHENG MEDICAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING RONGSHENG MEDICAL TECH CO LTD
Filing Date
2023-08-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing technology, the release of a double-layer particle-carrying stent requires two delivery systems, which increases the cost of medical device use and operation time. Furthermore, the relative positions of the inner and outer stents are easily affected by human factors, leading to deviations in the release position.

Method used

A dual-layer particle-carrying stent delivery device was designed, which adopts an inner and outer cylindrical self-expanding stent. Through the combination structure of guide head, inner tube, inner stent tube and outer stent tube, the dual-layer stent can be released in one insertion into the human body cavity. The control handle and imaging ring ensure accurate release position.

Benefits of technology

It achieves precise release of the double-layer stent, saves a delivery system, reduces patient costs, shortens operation time, and ensures precise and controllable relative positions of the inner and outer stent layers.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种双层可载粒子支架输送器,双层可载粒子支架包括均为筒状自膨胀式支架的内层支架和外层支架。输送器包括导向头、内管、内层支架管和外层支架管,导向头位于外层支架管远端,内管远端与导向头固接。内层支架管套设于内管外侧并且两者之间形成有内层支架容纳腔,所述内层支架设置于所述内层支架容纳腔中;所述内层支架管可相对内管沿内管的轴向前后移动以敞开或者封闭所述内层支架容纳腔;外层支架管套于内层支架管外并且两者之间形成有外层支架容纳腔,所述外层支架设置于所述外层支架容纳腔中;所述外层支架管可相对内层支架管沿内层支架管的轴向前后移动以敞开或者封闭所述外层支架容纳腔。
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