Triple-Tubular Tissue Resection Device with Rotating and Reciprocating Blades
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional tissue resection devices require multiple blades for treating sub-mucosal non-cancerous growths, such as polyps and fibroids, leading to operational inefficiencies and increased inventory costs due to the need for multiple blade types.
Innovation Solution
A medical device with a triple-tubular member configuration, where the outer tubular member is stationary, the middle tubular member is rotatable within the outer, and the inner tubular member reciprocates and rotates within the middle, forming multiple cutting tools and modes (oscillation and reciprocation/rotation) to address various tissue types with a single blade assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple dedicated blades are used for different tissue types, then cutting effectiveness for various tissues is improved, but device complexity and inventory requirements increase
Solution Approach 1:
The patent applies universality by designing a single blade assembly that can perform multiple cutting functions. The blade is configured to work in different operational modes (oscillation mode and reciprocation/rotation mode) to effectively resect various tissue types including hard-to-reach areas and larger tissues, eliminating the need for multiple dedicated blades while maintaining cutting effectiveness across different tissue characteristics
Solution Approach 2:
The patent applies dynamics by enabling the blade to switch between different operational modes. The blade can oscillate for hard-to-reach areas and switch to reciprocation/rotation for larger and harder tissues. This dynamic adaptability allows a single blade to handle diverse cutting requirements that previously required multiple static blade types
2Adaptability or versatility
If multiple blade types are maintained in inventory, then ability to treat different tissue types is improved, but inventory costs and operational efficiency deteriorate
Solution Approach 1:
The single blade assembly with multiple operational modes eliminates the need to switch between different blade types during procedures. The blade can handle both hard-to-reach areas and larger tissues within a single procedure, improving operational efficiency by removing blade changes and reducing inventory management requirements while maintaining the ability to treat various tissue types
3Reliability
If multiple dedicated blades are used, then resection capability for specific tissue types is improved, but procedure time increases
Solution Approach 1:
The dynamic operational modes allow the blade to adapt to different tissue types during a single procedure. The surgeon can switch between oscillation mode for hard-to-reach areas and reciprocation/rotation mode for larger tissues without changing blades, maintaining reliable resection capability while significantly reducing procedure time by eliminating blade changes and setup adjustments
Data Source
AI summary
Disclosed herein is a medical device. The medical device includes outer, middle, and inner tubular members. The outer tubular member has a proximal end and a distal end. The middle tubular member has a proximal end and a distal end. The middle tubular member is configured to be received within the outer tubular member and capable of being rotatable relative to the outer tubular member. The inner tubular member is configured to be received within the middle tubular member and capable of reciprocating and also capable of being rotatable relative to the middle tubular member. The inner tubular member is configured to reciprocate and rotate while the middle tubular member and the outer tubular member are configured to be stationary. The middle tubular member is configured to be rotatable relative to the outer tubular member while the inner tubular member is configured to be stationary.