Endoscopic Recess Formation for Gravity-Assisted Fluid Collection
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Solution Overview
Problem
Current endoscopic methods for collecting liquids from body cavities are inefficient and time-consuming, as they rely on aspiration while searching for fluids on the wall surface, rather than actively accumulating them using gravitational force.
Innovation Solution
A method involving a tool inserted through the body cavity to form a recess on the wall surface aligned with gravitational force, allowing liquids to accumulate and be efficiently collected by forming a slope for drainage into the recess, which is then aspirated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional aspiration methods are used to collect liquids from body cavities, then the collection process can be performed, but the collection time is long and efficiency is low
Solution Approach 1:
The method performs preliminary actions by adjusting the subject's body position to align gravity with the target site, and by forming a recess structure on the wall surface before aspiration. These preparatory steps cause liquid to naturally accumulate in the recess through gravitational force, creating optimal conditions for subsequent rapid aspiration and significantly reducing overall collection time.
Solution Approach 2:
The recess formed on the wall surface acts as an intermediary structure that facilitates liquid accumulation. This artificially created depression serves as a collection point where liquid naturally gathers due to gravity, making the subsequent aspiration process more efficient by concentrating the liquid in a specific location rather than searching for it throughout the body cavity.
2Reliability
If the endoscope searches for liquid on the wall surface, then liquid can be found, but the process is time-consuming and inefficient
Solution Approach 1:
The method enables the liquid to 'self-accumulate' in the recess through gravitational force without requiring active searching or manipulation. By positioning the recess and subject's body appropriately, the liquid naturally flows and concentrates in the depression, eliminating the need for time-consuming manual search while ensuring reliable detection and collection.
Solution Approach 2:
The recess is formed and body position is adjusted in advance to create conditions where liquid will naturally accumulate. This preliminary preparation ensures that when aspiration begins, liquid is already concentrated in the target location, eliminating the need for searching during the collection process.
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
This method significantly reduces collection time by actively accumulating liquids using gravity, allowing for quicker and more efficient extraction of body fluids and substances, such as duodenal juice, compared to conventional techniques.
Implementation Method 1
a first step of inserting a tool through the body cavity of the subject to reach a target site in the body cavity, the tool being for pressing press a wall surface of the body cavity
Implementation Method 2
a second step of adjusting a body position of the subject such that the wall surface of the body cavity including the target site intersects with a direction of gravitational force and the liquid present in the body cavity gathers on the wall surface intersecting with the direction of gravitational force
Implementation Method 3
a fourth step of accumulating the liquid present in the body cavity in the recess
Data Source
AI summary
A method is provided to collect liquid, such as pancreatic juice water, and saline, from a body cavity of a subject. In the method, a tool is inserted through the body cavity to reach a target site in the body cavity. A body position of the subject is adjusted such that the wall surface of the body cavity including the target site intersects with a direction of gravitational force and the liquid present in the body cavity gathers on the wall surface intersecting with the direction of gravitational force. A recess is formed to be concaved on the wall surface in the direction of the gravitational force by making the tool press the wall surface of the body cavity. Therefore, the liquid present or discharged in the body cavity is accumulated in the recess. The liquid accumulated in the recess is taken out of the body of the subject.