Microcatheter device

CN115814242BActive Publication Date: 2026-06-19SCIENTIA VASCULAR INC
View PDF 5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SCIENTIA VASCULAR INC
Filing Date
2017-09-08
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing guidewire and microcatheter devices are insufficient in terms of adjustable flexibility and torsion capability, making it difficult to effectively navigate the tortuous path of the vascular system, and the increased friction makes it difficult to transmit torque.

Method used

A microcatheter device is designed with an integrated coil formed by a spiral cut pattern in the distal section and multiple window structures in the proximal section. Combined with polymer layer encapsulation, it provides flexible gradient and torsional capability, ensuring that the distal end can be shaped and can effectively transmit torque.

Benefits of technology

It achieves a balance between highly flexible navigation and effective torsion capability of the catheter in the vascular system, ensuring that the distal end can be shaped and effectively transmit torque, thereby improving the accuracy and efficiency of interventional surgery.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN115814242B_ABST
    Figure CN115814242B_ABST
Patent Text Reader

Abstract

A microcatheter device includes: a tubular structure having a proximal segment and a distal segment, the distal segment of the tubular structure including a spiral cut pattern forming an integrated coil in the distal segment of the tubular structure, the integrated coil providing greater flexibility to the distal segment of the tubular structure than to the proximal segment of the tubular structure; the proximal segment of the tubular structure including a plurality of windows defining a plurality of axially extending beams and a plurality of circumferentially extending rings, the proximal segment having a higher torsional capacity than the distal segment and lower flexibility than the distal segment, wherein the plurality of axially extending beams extend parallel to the longitudinal axis of the tubular structure, and the plurality of circumferentially extending rings are arranged perpendicular to the longitudinal axis of the tubular structure.
Need to check novelty before this filing date? Find Prior Art