Negative Pressure Foam Bilayer for Postoperative Ileus Prevention
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Solution Overview
Problem
Postoperative Ileus (POI) is a common complication following bowel surgery, leading to delayed recovery of gastrointestinal function, prolonged hospital stays, and increased healthcare costs. Current treatments are inadequate in effectively preventing or treating POI.
Innovation Solution
The use of a bilayer apparatus encompassing foam strips, applied with negative vacuum pressure therapy, to prevent the onset and progression of POI. This apparatus is placed on the bowels and connected to a negative pressure delivery system to enhance bowel recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional treatment methods (mobilization, laxatives, open abdomen techniques, prokinetic agents) are used to treat POI, then bowel motility may be stimulated, but the length of hospital stay and healthcare costs remain significantly extended
Solution Approach 1:
The foam strips are applied to the bowel surface before discharge, establishing a pre-positioned treatment system that continues to provide negative pressure therapy after the patient leaves the hospital. This preliminary action ensures treatment continuity without requiring extended hospitalization.
Solution Approach 2:
The foam strips act as an intermediary device between the patient's bowel and the negative pressure source. They transmit therapeutic negative pressure to the bowel surface while allowing patient mobility and discharge, effectively mediating the treatment delivery outside the hospital setting.
2Reliability
If extended monitoring and treatment are provided to ensure bowel function recovery, then POI prevention may be improved, but hospital costs and resource utilization increase
Solution Approach 1:
The patient becomes self-managing of the treatment by wearing the foam strip apparatus at home. The patient can monitor and adjust their own bowel function recovery without requiring continuous healthcare provider intervention, thereby reducing resource consumption while maintaining prevention effectiveness.
Solution Approach 2:
The foam strips are simple, inexpensive, single-use devices that can be easily applied and removed. Their low cost and disposability enable extended monitoring and treatment without significantly increasing healthcare resource allocation, as multiple strips can be used sequentially if needed.
3Ease of operation
If the abdomen is kept open to treat POI using open abdomen techniques, then bowel access for treatment is improved, but surgical complexity and recovery time increase
Solution Approach 1:
The treatment system extracts the therapeutic function from the surgical setting. Instead of requiring the abdomen to remain open for treatment delivery, the foam strips are applied through a closed abdominal wall, separating the treatment application from the surgical procedure and simplifying the overall 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
The described method effectively prevents POI, thereby reducing hospital stays and improving postoperative recovery by promoting bowel healing and function.
Implementation Method 1
applying negative vacuum pressure therapy to the plurality of strips
Data Source
AI summary
This disclosure relates to apparatuses and methods for preventing the onset and progression of POI. In one example, a fan-like polyurethane heat-sealed bilayer that surrounds a plurality of wedge-shaped foam strips that join at a collecting foam portion, is subjected to negative pressure provided through silicone tubing which is sealed to the perforated collecting foam portion. Such negative pressure applied for approximately 48 to 72 hours after closure of the abdomen, helps prevent POI which in turn enhances patient recovery, and reduces the length of their hospital stay.