Branch stent and conveying system

By designing a branch stent that combines the skirt stent with the tubular stent, the problem of poor sealing of the branch vascular stent and the aortic arch vascular stent in the prior art is solved, and a higher sealing and safer approach process is achieved.

CN119970300AActive Publication Date: 2025-05-13LIFETECH SCI (SHENZHEN) CO LTD
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Patent Information

Application Number
CN202311502302.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-11-10
Publication Date
2025-05-13
Estimated Expiration
2043-11-10

AI Technical Summary

Technical Problem

In the prior art, the window of branched vascular stents and the aortic arch is poorly sealed, resulting in the risk of internal leakage, and the small stent has a risk of breaking under the impact of high-pressure blood flow in the aortic arch.

Method used

A branch bracket is designed, including a skirt bracket and a tubular bracket. The skirt bracket is connected to the tubular bracket through a skirt support frame. The skirt support frame has a support layer and a reinforcement layer to enhance sealing, and straighten the skirt bracket during transportation through a pull wire to simplify the entry process.

Benefits of technology

It effectively prevents the risk of internal leakage, improves blood flow smoothness, reduces the risk of red blood cell rupture and thrombosis, and shortens the surgical time through simplifying the approach process and reduces the harm to patients.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a branch stent and a conveying system. The conveying system comprises a conveyor and the branch stent. The branch stent comprises a skirt stent and a tubular stent, and the skirt stent is connected to the proximal end of the tubular stent; the skirt support comprises a skirt supporting framework; the skirt supporting framework comprises a plurality of supporting units arranged in the circumferential direction of the skirt support, each supporting unit comprises a supporting layer and a reinforcing layer which are connected, and each supporting layer is connected with the proximal end of the tubular support and extends outwards from the tube wall of the tubular support. The ends, away from the tubular support, of the supporting units are bent inwards to form the reinforcing layers. The skirt support of the branch support is high in stability, and blood leakage at the joint of the branch support and the aortic arch is effectively avoided.
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Citation Information

Patent Citations

  • Catheter system

    CN111588525A

  • Lumen stent

    CN114681116A

  • Branch stent

    CN116407327A

  • Medical stent with distal resistance force being strengthened

    JP2018099266A

  • Endovascular stent grafts, stent, stent-in-stent system, and kit

    WO2014072501A2

Cited By

  • Branch stent and conveying system

    CN119970301A

  • A branched stent and delivery system

    CN119970301B