Compressed Absorbent Sponge for Endoluminal Wound Drainage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wound drainage systems face challenges in placing and repositioning absorbent sponges in body cavities without overtubes, especially for longer guide lengths, and in maintaining sponge compression to prevent premature unfolding and fluid leakage.
Innovation Solution
An absorbent medical sponge body held in a compressed form by a liquid-impermeable film that can be easily opened and removed, allowing for placement and expansion within a body cavity, with optional lubricants and design features for ease of use and repositioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If an overtube with embedded metal spiral is used to place the sponge, then the sponge can be placed in the body cavity, but the production cost increases and the device length is limited to about 30 cm
Solution Approach 1:
The invention extracts and removes the overtube from the system, placing the sponge directly into the body cavity without the need for an overtube. This eliminates the metal spiral component entirely, reducing production costs and removing the 30 cm length limitation associated with overtube manufacturing.
Solution Approach 2:
The sponge is divided into multiple segments or sections that can be compressed independently. This segmentation allows the sponge to be placed in a compressed state and then expanded in situ, enabling placement in body cavities of various lengths without being constrained by overtube length limitations.
2Ease of operation
If the sponge is compressed by the overtube for placement, then the sponge can be inserted, but the sponge unfolds immediately after emerging and cannot be repositioned
Solution Approach 1:
The sponge is pre-compressed into a compact form suitable for insertion, and remains in this compressed state during placement. The compression is maintained until the sponge reaches the desired position, at which point it is released and expands. This preliminary compression action enables both easy insertion and the ability to reposition before final expansion.
Solution Approach 2:
The sponge transitions from a static compressed state during insertion to a dynamic expanded state after placement. The compression is not permanent but rather a temporary state that can be maintained during repositioning attempts, and only after successful placement does the sponge permanently expand to its functional form.
3Adaptability or versatility
If the sponge is placed without compression to allow repositioning, then repositioning becomes possible, but fluid leakage occurs and absorption effectiveness is reduced
Solution Approach 1:
The sponge is pre-compressed into a compact, leak-proof form for insertion and repositioning. This compression maintains structural integrity and prevents fluid leakage during the placement process. Only after the sponge is correctly positioned does the compression release, allowing the sponge to expand and begin absorbing fluids effectively.
Solution Approach 2:
The sponge exhibits dynamic properties, remaining in a compressed, low-permeability state during insertion and repositioning, then transitioning to an expanded, high-absorption state after placement. This dynamic behavior allows the sponge to adapt its properties based on the operational phase, preventing leakage during manipulation while maximizing absorption during therapy.
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 effective absorption and removal of wound fluids over extended periods with improved placement and repositioning capabilities, reducing the need for overtubes and minimizing fluid leakage, thus enhancing the effectiveness of endoluminal vacuum therapy.
Implementation Method 1
the film holds the absorbent sponge body together in a compressed form
Implementation Method 2
absorbent medical sponge body for removing wound fluids from human and/or animal body cavities
Implementation Method 3
open-pore sponge for absorbing wound secretions
Data Source
Figure 1~3
Figure 4a~4b
AI summary
The present invention relates to an absorbent medical body (10; 20; 30; 40), in particular for removing wound fluids from human and/or animal body cavities, comprising a wrapping (14; 24; 34; 44) for the absorbent body (10; 20; 30; 40), wherein the wrapping holds the absorbent body (10; 20; 30; 40) together in a compressed form.