Guide Wire Inserter Priming for Distal Air Removal
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Solution Overview
Problem
Existing medical elongated bodies, such as guide wires, face challenges in effectively removing air from their distal portions, which can lead to complications like air embolism during insertion into the body.
Innovation Solution
An inserter device with a tubular portion, distal opening, and connector that allows for the injection of liquid to perform priming on the distal portion of the medical elongated body, ensuring air is removed before insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a mechanical needle is used for atrial septal puncture, then the procedure can be performed with low cost, but there is a risk of erroneous puncture and cardiac tamponade
Solution Approach 1:
The puncture needle is divided into two functional parts: a flexible guide wire for safe navigation and a separate puncture needle for the actual puncture. The guide wire's flexibility allows it to bend upon contact with the left atrium wall, preventing erroneous puncture, while the puncture needle performs the precise puncture function when needed.
Solution Approach 2:
A sheath is introduced as an intermediary component that accommodates both the guide wire and puncture needle. The sheath provides a protective pathway and allows the operator to control the deployment sequence, first inserting the flexible guide wire for positioning, then deploying the puncture needle through the same sheath for accurate puncture.
2Ease of operation
If priming is performed only on the proximal portion of the guide wire, then the existing accommodation tool can be used, but air remaining in the distal portion may cause air embolism
Solution Approach 1:
The connector is designed to communicate with the main lumen at a position that enables liquid injection to reach the distal portion of the guide wire. This dimensional arrangement allows the priming liquid to flow through the entire length of the guide wire from proximal to distal, ensuring complete air removal from all sections.
Solution Approach 2:
The connector serves multiple functions: it connects the liquid injection tool for priming, communicates with the main lumen for fluid flow, and is positioned to enable effective priming of the distal portion. This multi-functionality integrates the priming capability directly into the insertion system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively removes air from the distal portion of medical elongated bodies, reducing the risk of complications like air embolism during medical procedures.
Implementation Method 1
a connector that communicates with the main lumen of the tubular portion, and connects a liquid injection tool... effectively perform priming on the distal portion of the medical elongated body
Data Source
AI summary
An inserter, a medical elongated body set, and a method of using the inserter to effectively remove air remaining inside a distal portion of a medical elongated body of the medical elongated body set by effectively performing priming on the distal portion of the medical elongated body. The inserter assists the medical elongated body to be inserted into a medical device. The inserter includes a tubular portion having a proximal opening portion into which the medical elongated body is inserted and a distal opening portion that guides the medical elongated body to the medical device. The inserter has a main lumen through which the proximal opening portion and the distal opening portion communicate with each other. The inserter has a connector that communicates with the main lumen of the tubular portion, and connects to a liquid injection tool.