Urethral Balloon Catheter Guide Member Alignment
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Solution Overview
Problem
Existing medical devices face challenges in accurately positioning and aligning balloons within biological lumens, leading to uneven pressure application and misalignment of medical members during indwelling procedures, particularly in curved or meandering sites like the urethra, which can result in inadequate treatment and potential complications.
Innovation Solution
A medical device featuring a flexible main body with a dilatable balloon and an elongated guide member that allows for precise positioning of the balloon at the treatment site, ensuring uniform pressure distribution and preventing misalignment by attaching the guide member between the balloon's end portions, facilitating the delivery and indwelling of medical members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a balloon catheter with x-ray contrast marker is used for positioning, then the balloon can be positioned at the treatment target site, but it is not easy to arrange indwelling work accurately and takes a lot of effort
Solution Approach 1:
The patent introduces a guide member as an intermediary tool that extends from the treatment target site through the biological lumen to the outside of the living body. This guide member serves as a mediator that enables accurate positioning of the balloon catheter by providing a physical reference and pathway, eliminating the need for complex x-ray contrast marker positioning procedures while improving both measurement precision and ease of operation.
2Reliability
If the balloon is dilated to press the medical member against the treatment target site, then the medical member can be prevented from misalignment, but uneven pressure is applied if the balloon is not properly positioned
Solution Approach 1:
The patent implements preliminary action by using the guide member to pre-establish accurate positioning and alignment of the balloon catheter at the treatment target site before dilation occurs. The guide member ensures that the balloon is correctly positioned along the guide member's axis, so that when dilation happens, uniform pressure is automatically applied to the medical member, preventing misalignment and ensuring reliable holding force without requiring perfect initial positioning.
3Adaptability or versatility
If the medical member is delivered to a meandering or curved site in the biological lumen, then the treatment can reach difficult areas, but the pressurizing force is unevenly applied and the medical member may become misaligned
Solution Approach 1:
The patent applies the curvature principle by designing the guide member to follow the natural curved or meandering pathway of the biological lumen from the treatment target site to the outside of the living body. This curved guide member serves as a template that guides the balloon catheter along the same curved path, ensuring that even in difficult-to-reach areas, the balloon remains properly aligned and applies uniform pressurizing force to the medical member throughout the indwelling procedure.
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
The solution enables efficient and accurate delivery of medical members to treatment sites with uniform pressure application, reducing the risk of misalignment and complications, thereby improving the effectiveness and safety of the indwelling procedure.
Implementation Method 1
a balloon (210) capable of dilating deformation and deflating deformation, and having a dilating space (218) into which a pressurizing medium flows between an outer surface of the main body (220) and the balloon (210)
Data Source
AI summary
A medical device is disclosed for delivering a medical member which is intended to indwell in a treatment site of a urethra includes a flexible main body that extends in an axial direction, a balloon that includes an effectively dilatable portion on which the medical member is mounted, that has a dilating space into which a pressurizing medium flows between an outer surface of the main body and the balloon, and that is capable of dilating deformation and deflating deformation, an elongated guide member that is arranged across the treatment site and the outside of a living body via the urethra, and an attachment portion to which at least a portion of the guide member is detachably attached at a position between both end portions in the axial direction of the main body.