Dilation Catheter Removable Guide Member and Rotary Control
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Solution Overview
Problem
Current dilation catheter systems lack enhanced control and modular replacement capabilities, particularly in anatomical passageway procedures such as sinus dilation, where precise positioning and component interchangeability are crucial for effective treatment.
Innovation Solution
The dilation catheter system incorporates a guidewire movement assembly with a rotary member and gearbox for precise guidewire control, along with a guide member attachment assembly that allows for rotational and longitudinal locking of a removable guide member, enabling flexible access to different anatomical structures and facilitating modular component replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a variable direction view endoscope is used to provide visualization within the anatomical passageway, then viewing flexibility is improved, but the ability to provide additional visual confirmation of proper balloon positioning is limited
Solution Approach 1:
An illuminating guidewire is introduced as an intermediary device to provide visual confirmation of proper balloon positioning. The guidewire contains an illuminating element that emits light visible through transcutaneous illumination, allowing the operator to confirm the guidewire and balloon position externally without additional imaging equipment.
2Ease of operation
If traditional guidewire control mechanisms are used in the dilation catheter system, then basic guidewire advancement is achieved, but enhanced control and precision positioning are lacking
Solution Approach 1:
The traditional mechanical guidewire control is supplemented with a rotary member and gearbox mechanism. The rotary member enables precise rotational control of the guidewire, while the gearbox provides mechanical advantage for controlled advancement and retraction, replacing simple push-button control with a more precise mechanical system.
3Device complexity
If a fixed guide member is used in the dilation catheter system, then structural simplicity is maintained, but modular replacement capabilities and adaptability to different anatomical profiles are limited
Solution Approach 1:
The guide member is divided into a fixed portion and a removable portion. The removable portion can be detached and replaced with different guide members having varying curvatures and configurations to match different anatomical profiles, while the fixed portion remains attached to the catheter body.
Solution Approach 2:
The guide member configuration is made dynamic through the ability to exchange the removable portion during the procedure. This allows the system to adapt to different anatomical requirements by selecting appropriate guide members, transforming a static system into a dynamically adaptable one.
4Ease of manufacture
If non-modular components are used in the dilation catheter system, then manufacturing simplicity is maintained, but component replacement capabilities and procedural efficiency are reduced
Solution Approach 1:
The catheter system is segmented into modular components including the fixed guide member, removable guide member, balloon catheter, and control mechanisms. This segmentation enables independent manufacturing of each component and rapid assembly/disassembly during procedures, improving both manufacturability and procedural efficiency.
Data Source
AI summary
A dilation catheter system includes a body and a shaft assembly. The shaft assembly extends passed a distal end of the body. The shaft assembly includes a fixed guide member, a catheter shaft, a dilator, a removable guide member, and a guidewire. The fixed guide member is fixed relative to the body. The dilator is fixed to the catheter shaft. The catheter shaft is operable to expand the dilator. The removable guide member is operable to selectively attach to the body. The catheter shaft is slidably disposed along the removable guide member such that the catheter shaft is configured to translate along the removable guide member. The guidewire is slidably disposed within the removable guide member.