一种有弹性的支架递送装置
By designing a stent delivery device with components such as an inner core wire, a hypotube, a stent delivery and retraction mechanism, and a imaging spring, the problems of high resistance and difficulty in retraction during stent pushing were solved, achieving accurate stent delivery and a high success rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI MICROMEDTEC CO LTD
- Filing Date
- 2022-07-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing stent delivery devices often encounter significant resistance during stent delivery, making it difficult to retract the stent before it is fully released. This increases the difficulty of the procedure and may even prevent the stent from being accurately delivered to the target blood vessel, thus affecting the outcome of the interventional surgery.
A stent delivery device was designed, comprising an inner core wire, a hypotube, a stent delivery and retraction component, a stress relief component, a mesh stent, a radiopaque spring, and a fixing catheter. By combining rotating components, elastic elements, and limiting components, the device improves the stent's bending capability and safety, allowing the stent to be retracted and readjusted when the position is unsatisfactory.
It improves the compliance and safety of the stent delivery device, enabling it to be withdrawn and repositioned when stent delivery is unsatisfactory, reducing pushing and withdrawing forces, and enhancing the precision and success rate of the surgery.
Smart Images
Figure CN115919520B_ABST