Sinus Balloon Catheter Adjustable Bending Angle Mechanism
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Solution Overview
Problem
Existing balloon catheters for sinusitis treatment have fixed bending angles, making it difficult to accommodate varying sinus structures, limiting their effectiveness and adaptability during surgical procedures.
Innovation Solution
A sinus balloon catheter with a bending angle adjusting mechanism, comprising a bending angle adjusting lever, rotary plate, and guide unit with sliding wires, allowing for adjustable bending angles and balloon positions to accommodate different sinus structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed bending angle catheter is used, then the device structure is simple, but it cannot accommodate varying sinus structures
Solution Approach 1:
The catheter incorporates a dynamic bending angle adjustment mechanism that allows the catheter tip to change its bending angle from 0 to 180 degrees. This is achieved through a flexible distal tip section that can be actively controlled to adapt to different sinus anatomical structures, transforming a static device into a dynamic one that responds to procedural needs.
Solution Approach 2:
The catheter is divided into distinct segments including a flexible distal tip section and a more rigid proximal section. This segmentation allows the distal tip to independently bend and adjust while maintaining the structural integrity and control of the proximal section, enabling adaptability without compromising overall device stability.
2Ease of operation
If a flexible distal tip is used for inclination, then insertion flexibility is improved, but the bending angle cannot be precisely adjusted
Solution Approach 1:
The catheter incorporates a control mechanism that provides feedback on the bending angle of the distal tip. This allows the operator to precisely adjust and maintain specific bending angles (0-180 degrees) during insertion and positioning, transforming the passive flexibility of the distal tip into an actively controllable feature with precise angular adjustment.
Solution Approach 2:
A control wire or actuation mechanism serves as an intermediary between the operator's input and the distal tip's bending action. This intermediary component transmits control forces precisely to the distal tip, enabling accurate bending angle adjustment while maintaining the flexibility needed for easy insertion.
3Measurement precision
If separate devices are used for different sinus types, then treatment precision is improved, but device complexity and cost increase
Solution Approach 1:
The catheter is designed as a universal device that can treat all three types of sinuses (frontal, maxillary, and sphenoidal) through its adjustable bending angle capability. By incorporating a controllable distal tip that can achieve 0-180 degree bending, a single catheter design replaces the need for multiple specialized catheters, maintaining treatment precision while reducing device complexity.
Data Source
AI summary
Disclosed is a sinus balloon catheter. The sinus balloon catheter includes a body unit, a bending angle adjusting unit that includes a bending angle adjusting lever and a rotary plate, and a guide unit that includes a balloon, and has a pair of bending angle adjusting wires therein. The guide unit includes a first guide body, and a second guide body that is slidably provided in the first guide body, the balloon is provided on the second guide body, the rotary plate is connected to any one of the pair of bending angle adjusting wires to be rotated, and the other bending angle adjusting wire is maintained within the guide unit, and the guide unit is inserted into any one of a sphenoidal sinus, a frontal sinus, and a maxillary sinus.