Stent Insertion Guide Member With Fixed Part
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Solution Overview
Problem
Conventional stent insertion apparatuses face difficulties in accurately positioning and securely fixing guide tubes in branched areas of stenosis, leading to potential detachment during operations, which causes time loss and increases the risk of medical accidents.
Innovation Solution
A stent insertion apparatus with a guide member featuring a fixing part that includes an insertion hole with a depth greater than the guide tube diameter, gradually increasing width, and paired fixed protrusions to securely fix the guide tube, preventing detachment and allowing accurate positioning without additional operation steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a guide tube is inserted into a branched area of stenosis during stent insertion operation, then a stent can be installed in the branched area, but the guide tube may be drawn and separated during the operation causing time loss and medical accidents
Solution Approach 1:
The guide tube and guide member are merged into a single integrated assembly where the guide tube is fixed to the guide member. This combination ensures that the guide tube cannot be drawn or separated during the stent insertion operation, eliminating the detachment risk while maintaining the capability to install stents in both main and branched areas of stenosis
Solution Approach 2:
The guide tube is preliminarily fixed to the guide member before the stent insertion operation begins. The fixing part is prepared in advance with an insertion hole that secures the guide tube, so that during the operation the guide tube remains securely in place without risk of detachment or time loss for repositioning
2Adaptability or versatility
If a guide tube is inserted into a branched area of stenosis, then stent installation in branched area is enabled, but positioning the guide tube accurately is technically difficult
Solution Approach 1:
The guide member acts as an intermediary between the operator and the guide tube positioning. It provides a structured pathway and fixing mechanism that guides the guide tube to the correct position in the branched area, making accurate positioning achievable without requiring difficult manual dexterity
3Ease of operation
If the guide tube separates from the stent insertion apparatus during operation, then the apparatus must be collected to fix the guide tube again, but severe time loss occurs causing medical accidents
Solution Approach 1:
By merging the guide tube with the guide member through a fixed connection, the invention eliminates the possibility of separation entirely. This prevents the need for time-consuming repositioning operations and associated medical risks
4Adaptability or versatility
If a conventional stent insertion apparatus is used, then stent insertion in main area of stenosis is achieved, but insertion of separate stent into branched area is difficult
Solution Approach 1:
The guide tube is nested within or attached to the guide member, forming a compact integrated structure. This nested arrangement enables the apparatus to handle both main area and branched area stent insertions without requiring completely separate devices, achieving versatility while controlling complexity
Data Source
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AI summary
A stent insertion apparatus including a guide member in which a fixing part is formed includes a guide member configured to guide movement of a first stent inserted into a human body along a first guide wire inserted into a main area of stenosis to be installed in the main area of stenosis, wherein the guide member includes a fixing part configured to fix a leading end portion of a guide tube into which a second guide wire for installing a second stent is inserted, the second stent being inserted into a branched area of stenosis, which branches from the main area of stenosis, to be installed in the branched area of stenosis.