Expandable Lumen Partitioning Element for Gas Isolation
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Solution Overview
Problem
In minimally invasive surgical procedures, insufflating a portion of an elongated lumen, such as the duodenum, leads to gas leakage into the entire lumen, causing post-operative pain due to the stretching of the lumen, and existing partitioning elements require support systems that pass through the insufflated portion, complicating the procedure.
Innovation Solution
A partitioning element with an expandable carrier and isolating element that can be radially expanded to sealably isolate a portion of the lumen from the remainder, remaining in place without external support, allowing independent insufflation of the first portion without leaking gas to adjacent or distant portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If partitioning elements are used to isolate a portion of the lumen, then gas containment is improved, but device complexity increases due to required support systems
Solution Approach 1:
The partitioning element is designed to maintain its own position and isolation function without requiring external support systems. The element's structure enables it to self-maintain the seal and position within the lumen through its own geometric and material properties, eliminating the need for additional support mechanisms that would pass through the insufflated portion.
Solution Approach 2:
The invention removes the support system component from the partitioning element design. By extracting the external support requirement, the partitioning element can be deployed independently without conduits or other support structures passing through the working portion of the lumen, thereby simplifying the overall device while maintaining reliable gas containment.
2Stability of the object's composition
If support systems pass through the insufflated portion to maintain partitioning elements, then partitioning stability is improved, but ease of operation deteriorates
Solution Approach 1:
The partitioning element achieves stability through its own structural design rather than requiring external support systems to pass through the insufflated portion. The element's geometry and material properties enable it to maintain its position and sealing function independently, eliminating obstructions in the working area and improving ease of operation.
3Area of stationary object
If the entire lumen is insufflated to insufflate a specific location, then insufflation coverage is improved, but patient comfort deteriorates due to post-operative pain
Solution Approach 1:
The partitioning element divides the lumen into separate compartments, allowing selective insufflation of only the specific portion where the procedure is being performed. This segmentation prevents gas from spreading to the entire lumen, thereby maintaining adequate insufflation coverage at the target site while avoiding over-distension of adjacent areas and reducing post-operative pain.
4Ease of operation
If partitioning elements are designed to be easily positioned and removed, then ease of operation is improved, but isolating effectiveness may deteriorate
Solution Approach 1:
The partitioning element incorporates dynamic characteristics that enable easy positioning and removal while maintaining effective isolation during use. The element can be deployed and positioned with simple maneuvers, maintains a stable sealed configuration during the procedure, and can be removed easily when no longer needed, balancing operational ease with isolating effectiveness.
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 solution efficiently isolates the insufflated portion from the rest of the lumen, reducing post-operative pain by minimizing the need for external support systems and ensuring precise gas containment, thereby facilitating minimally invasive procedures with reduced complications.
Implementation Method 1
the carrier element being radially expandable from a first state defining a first transverse cross-sectional area to a second state defining a second transverse cross-sectional area greater than the first transverse cross-sectional area
Implementation Method 2
one of the isolating element and the carrier element engaging an inner surface of the lumen... to substantially sealably isolate the first portion of the lumen from the second portion
Data Source
AI summary
A pair of partitioning elements located in a duodenum, sealably isolates a first portion of the duodenum, in which a minimally invasive procedure is to be carried out from a proximal second portion and a distal third portion of the duodenum to allow insufflating of the first portion only. The first partitioning element located between the first and second portions of the duodenum comprises a tubular carrier element and an isolating membrane secured to the carrier element. The carrier element is radially expandable from a compressed first state to a second state with the isolating membrane sealably isolating the first portion from the second portion. A communicating opening through the isolating membrane accommodates an endoscope therethrough into the first portion. The communicating opening is omitted from the second partitioning element.