Embolic device for occluding a body lumen
By designing a multi-segment embolization device and utilizing the phase transition characteristics of the segments at body temperature to form a three-dimensional structure, the problem of the shape adaptability of the vascular occlusion device during catheter advancement and deployment was solved, achieving a more efficient vascular occlusion effect.
Patent Information
- Application Number
- CN202080077736.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2019-11-11
- Filing Date
- 2020-11-06
- Publication Date
- 2026-05-05
- Estimated Expiration
- 2040-11-06
AI Technical Summary
Existing vascular occlusion devices are difficult to bend inside the catheter, and their shape does not conform to the vascular lumen after deployment, resulting in poor occlusion effect. Furthermore, issues with rigidity or flexibility may lead to difficulties in advancement or shape deformation.
Design an embolization device whose elongated component is composed of multiple segments, each segment having different phase transition properties at room temperature and body temperature, allowing for the formation of a three-dimensional structure at body temperature to adapt to the shape of the vascular lumen, and adjusting the shape through the phase transition of the segments to adapt to the intravascular environment.
It improves the advancement of the embolization device within the catheter and its shape adaptability within the body cavity, reduces friction, ensures effective occlusion, and avoids problems such as premature buckling and shape mismatch.