An improved prostate stent

By designing an improved prostate stent with a three-dimensional frame structure, the closed frame is formed by using proximal support ribs, which solves the problem of limited expansion and easy slippage and dislocation when supporting hyperplasia tissue, and improves the stent's resistance to displacement and positioning effect.

CN118986604BActive Publication Date: 2025-03-25ZHEJIANG YIGAO MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202411472669.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-22
Publication Date
2025-03-25
Estimated Expiration
2044-10-22

AI Technical Summary

Technical Problem

When the existing prostate stent supports hyperplasia tissue, the proximal support edge expansion is limited, and the stent structure is non-closed, resulting in the hyperplasia tissue being easily slipped and displaced, and the stent is easily displaced, increasing the risk of complications.

Method used

An improved prostate stent was designed, adopting a three-dimensional frame structure, including the base segment, the main support segment and the proximal support band. The proximal support band forms a closed frame to enhance the stent's resistance to displacement.

Benefits of technology

It effectively prevents slippage of hyperplasia tissue, improves the positioning effect and support effect of the stent, reduces the risk of displacement, and reduces the occurrence of complications.

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Abstract

The present invention provides an improved prostate stent, which comprises a stent body, a stent base and a pull rope. The stent body is a three-dimensional frame structure. The stent body comprises a base section, a main support section and at least one proximal support rib. The base section comprises a plurality of proximal support edges. The main support section comprises a plurality of main support edges and a distal support frame. The plurality of main support edges are arranged at intervals in the circumferential direction and extend from the proximal end toward the distal end. The distal support frame is formed at the distal ends of the plurality of main support edges. The plurality of proximal support edges are formed one by one at the proximal ends of the plurality of main support edges to form a plurality of support members, and adjacent support members constitute a support unit frame. The two ends of the proximal support rib are respectively arranged on two adjacent support members, and a portion of the proximal support rib is tilted in a direction away from the support unit frame. The proximal support rib and the proximal section of the support unit frame enclose a closed frame.
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