Endoscopic Treatment Instrument With Elastic Rod Positioning
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Solution Overview
Problem
Existing endoscopic treatment instruments require surgeons to manually adjust the operation of advancing and retracting electrodes and rods based on the treatment situation, making these operations cumbersome and inefficient.
Innovation Solution
An endoscopic treatment instrument with an electrode and a rod that are easily operated depending on the treatment situation, featuring a sheath, an electrode disposed on the sheath, a rod partially inside the electrode, and an elastic body biasing the rod to accommodate inside the sheath, simplifying the operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electrode and rod are manually adjusted based on treatment situation, then the treatment can be performed with a single instrument, but the operation becomes cumbersome and complex
Solution Approach 1:
The elastic body automatically advances the rod to the distal end position when the electrode is retracted, and automatically retracts the rod when the electrode is advanced, without requiring manual operation. This self-service mechanism reduces operational complexity while maintaining the ability to perform both incision/dissection and local injection treatments
Solution Approach 2:
The elastic body pre-positions the rod at the distal end during incision/dissection treatment by applying biasing force, so that when the electrode is advanced for cutting, the rod is already in the correct position. This preliminary positioning eliminates the need for manual adjustment during the procedure
2Productivity
If the rod is always exposed for injection treatment, then injection can be performed quickly, but the risk of unintended operation during incision treatment increases
Solution Approach 1:
The rod's position is made dynamic rather than fixed - it automatically transitions between retracted and exposed states based on the electrode's position and treatment mode. During incision treatment, the rod remains retracted for safety; during injection treatment, it automatically extends for efficiency
Solution Approach 2:
The system provides automatic feedback control where the electrode's advancement or retraction triggers corresponding rod movement through the elastic body mechanism, ensuring the rod is only exposed when appropriate for the current treatment phase
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 instrument allows for easier and more efficient operation during incision, dissection, and local injection treatments, reducing the complexity for surgeons and enhancing procedural efficiency.
Implementation Method 1
an elastic body which biases a distal end of the rod so that the distal end of the rod is accommodated in more proximal side than a distal end of the electrode
Data Source
AI summary
An endoscopic treatment instrument includes: a sheath; an electrode which is disposed on a distal end side of the sheath; a rod which is disposed at least partially inside the electrode; and an elastic body which biases a distal end of the rod so that the distal end of the rod is accommodated in more proximal side than a distal end of the electrode.