Balloon dilatation catheter for vascular ostium sites

CN224686155UActive Publication Date: 2026-08-28LELAND BIOTECH (SUZHOU) CO LTD
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Patent Information

Application Number
CN202520858967.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-08-28
Estimated Expiration
2035-04-30

AI Technical Summary

Technical Problem

[0003]为了缓解上述问题，常使用球囊扩张导管进行对狭窄部位进行扩张以恢复血管尺寸，但现有的球囊扩张导管，囊体整体上为空心圆柱形，虽然对狭窄部分进行了扩张，但无法对血管分叉处塑性，形成圆滑过渡，使得血流流动性较差

Benefits of technology

[0018]1、在本实用新型中，临床使用时，囊体膨胀后，包括平直段和喇叭口段；所述喇叭口段位于血管分叉部位，能够对血管分叉部位进行更好的扩张及塑性，恢复血液的流动，特别当分叉部位需要植入支架时，可以扩张侵入正常血管的部分支架，使得这部分贴于血管壁，不影响正常血管的血流；所述平直段的外周面上设置限制网，扩张血管狭窄部位，而且由于限制网的限制，平直段囊体不会过度膨胀，破坏血管内壁，提高安全性；

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Abstract

The utility model relates to a kind of balloon dilatation catheter for blood vessel opening site, belong to medical instrument technical field.Balloon dilatation catheter, including inner tube, outer tube and sac body on the outer circumferential surface of the inner tube, the sac body is hollow cylinder, and limiting net is equipped on the distal end of the sac body;The sac body is constituted by straight section and flared mouth section after inflation, the length of limiting net is equal to the length of straight section;The flared mouth section is located at blood vessel bifurcation site, and the straight section is located at blood vessel stenosis site and anchors the sac body.Balloon dilatation catheter can better anchor or fix sac body, limiting net is set on the outer circumferential surface of straight section, form pillow part protrusion after inflation, prevent straight section sac body excessive inflation, damage blood vessel inner wall, improve safety, the flared mouth section is located at blood vessel bifurcation site, can better dilate and plasticity to blood vessel bifurcation site.
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