Removable Sponge Sections for Endoscopic Vacuum Wound Treatment
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Solution Overview
Problem
Existing endoscopic and surgical treatments for gastrointestinal tract wounds, such as perforations and leaks, are invasive and have high morbidity and mortality rates, with stent placement risking migration and infection, while current endoscopic vacuum therapy devices are limited in effectiveness.
Innovation Solution
A medical system comprising a delivery tube coupled to a vacuum source and a porous body with removable sections, allowing for endoluminal placement and negative pressure application to wounds, facilitated by a string for sequential removal of sponge sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If endoscopic stent placement is used to treat gastrointestinal wounds, then invasiveness is reduced compared to surgery, but the stent may migrate from the intended location and wall off infection, inhibiting drainage
Solution Approach 1:
The porous body is divided into multiple removable sections that can be individually extracted through the delivery tube. This segmentation allows the distal portion to remain in place for continuous drainage while proximal sections are removed sequentially, preventing migration and maintaining reliable function.
Solution Approach 2:
The device transitions from a static stent structure to a dynamic system where sections can be added or removed based on healing progress. The porous body sections can be selectively extracted through the delivery tube, allowing the system to adapt to changing clinical conditions while maintaining stable positioning.
2Reliability
If surgical re-operation is performed to manage gastrointestinal wounds, then wound treatment effectiveness is improved, but morbidity and mortality rates remain high
Solution Approach 1:
The device extracts the need for surgical re-operation by providing an endoscopic solution. The porous body sections can be removed through the delivery tube without requiring surgical intervention, achieving effective wound management while avoiding the high morbidity and mortality associated with surgery.
Solution Approach 2:
The removable porous body sections act as an intermediary between the wound site and the external environment, providing effective wound management through controlled drainage and negative pressure therapy without requiring invasive surgical procedures.
3Device complexity
If a single-piece porous body is used in endoscopic vacuum therapy, then device simplicity is maintained, but the ability to adjust treatment and reduce physician intervention is limited
Solution Approach 1:
The porous body is segmented into multiple sections that can be independently removed through the delivery tube. This segmentation enables automatic adjustment of the device configuration based on wound healing progress, reducing the need for physician intervention while maintaining simple overall device structure.
Solution Approach 2:
The device incorporates dynamic adjustability through removable sections that can be extracted sequentially. This allows the system to automatically adapt to changing treatment requirements without increasing overall device complexity or requiring frequent physician visits.
4Measurement precision
If multiple imaging modalities are used to monitor wound healing, then measurement precision is improved, but treatment cost and complexity increase
Solution Approach 1:
The device enables self-monitoring of wound healing through the progressive removal of porous body sections. As sections are removed and the wound heals, the device itself provides visual feedback on treatment progress, reducing reliance on expensive imaging modalities while maintaining adequate monitoring capability.
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
Facilitates less invasive wound treatment with reduced recovery time, minimized physician intervention, and enhanced wound healing by enabling controlled removal of sponge sections, reducing reliance on imaging and lowering component costs.
Implementation Method 1
a delivery tube configured to couple to a vacuum source and provide negative pressure to a distal portion of the delivery tube
Data Source
Figure 1~3
Figure 4A~4D
AI summary
In one example, a medical system may comprise a delivery tube configured to couple to a vacuum source and provide negative pressure to a distal portion of the delivery tube; and a porous body at a distal portion of the delivery tube, the porous body including a first section and a second section removable from the first section.