Mucous Membrane Lifting Instrument with Adjustable Elastic Bands
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Solution Overview
Problem
Current mucous membrane traction tools face difficulties in adjusting traction force and size during submucous membrane peeling due to the limited space within the digestive tract, making the peeling operation time-consuming and challenging.
Innovation Solution
A mucous membrane lifting instrument featuring a tubular hood with elastic bands and a linear member that allows for adjustable traction by fixing the bands to the mucous membrane and tube wall, enabling easy manipulation of the mucous membrane during peeling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a mucous membrane traction tool with elastic portion is used, then the mucous membrane layer can be pulled up to ensure it is captured in the field of view, but the amount of traction force cannot be adjusted and the device complexity increases
Solution Approach 1:
The patent applies the dynamics principle by making the linear member movable relative to the hood rather than fixed. The linear member can be inserted and removed from the hood, and its position can be adjusted along the axial direction. This dynamic configuration allows the traction force to be adjusted by changing the engagement position of the linear member with the hood, resolving the contradiction between ease of operation and device complexity.
2Ease of operation
If the first clamping member is attached to the mucous membrane to be incised and the second clamping member is attached to another mucous membrane, then the mucous membrane can be pulled up, but the distance between the mucous membrane to be incised and the other mucous membrane cannot be shorter than the length of the mucous membrane retractor
Solution Approach 1:
The patent applies the dynamics principle by making the linear member movable within the hood. The linear member can be positioned at different locations along the axial direction of the hood, allowing the effective length of the traction tool to be dynamically adjusted. This enables the tool to adapt to different distances between the mucous membrane to be incised and the opposing mucous membrane, resolving the contradiction between ease of operation and adaptability.
3Device complexity
If a mucous membrane traction tool with fixed elastic portion is used, then the structure is simple, but the traction force and size cannot be changed during the separation procedure
Solution Approach 1:
The patent applies the dynamics principle by making the linear member movable relative to the hood. The linear member can be inserted to different depths and positioned at different locations within the hood, allowing the traction force and size to be adjusted during the procedure. This dynamic configuration maintains relative structural simplicity while providing the needed adaptability, resolving the contradiction between device simplicity and adjustability.
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
Enables easy adjustment of traction force and size during mucous membrane peeling, improving operational efficiency and reducing the complexity of the procedure.
Implementation Method 1
a first band 21 having an elasticity, and arranged on an outer peripheral surface of the hood in a stretched state; a second band 22 having an elasticity, and arranged on the outer peripheral surface of the hood in a stretched state at a position proximal of the first band
Data Source
AI summary
A mucous membrane lifting instrument includes: a tubular hood having a proximal end attachable to a distal end of an endoscope; a first band having an elasticity, and arranged on an outer peripheral surface of the hood in a stretched state; a second band having an elasticity, and arranged on the outer peripheral surface of the hood in a stretched state at a position proximal of the first band; and a linear member that is connected to the first band, and passes between the outer peripheral surface of the hood and the second band.