Progressive Inflation Balloon Dissector for Ventral Defect Closure
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Solution Overview
Problem
Traditional balloon dissectors inflate uniformly, which can lead to excessive lateral tension during minimally invasive surgical closure of ventral defects, and are not cosmetically appealing, whereas a progressive inflation along the length of the balloon dissector would allow for more controlled tissue separation and reduced tension.
Innovation Solution
An elongate balloon dissector with a cylindrical shape that inflates progressively from the proximal to the distal end, allowing for a controlled creation of an anatomical space with a guide assembly and inflation port for precise fluid delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a traditional balloon dissector inflates uniformly all at once, then the device structure is simple, but excessive lateral tension is generated during surgical closure
Solution Approach 1:
The balloon is divided into multiple segments or zones along its length, with each segment inflating at different rates or at different times. This segmentation allows progressive inflation from proximal to distal end, distributing the expansion force over time and space to reduce lateral tension on the abdominal wall while maintaining the necessary anatomical space creation.
Solution Approach 2:
The inflation process is made dynamic and controllable, transitioning from a static simultaneous inflation to a dynamic progressive inflation. The system enables real-time control of inflation rate and sequence along the balloon length, allowing the surgeon to adjust the inflation process to minimize tension while achieving the desired anatomical separation.
2Ease of manufacture
If a traditional balloon dissector inflates uniformly, then the device is simple to manufacture, but cosmetic outcomes are not appealing due to visible scarring
Solution Approach 1:
The balloon is segmented into multiple inflation zones that expand progressively, allowing precise control over the creation of anatomical spaces. This enables better tissue approximation and closure without excessive tension, leading to improved cosmetic outcomes with minimal visible scarring while maintaining manufacturing simplicity.
Solution Approach 2:
The inflation parameters (rate, sequence, pressure distribution) are changed along the length of the balloon, transitioning from uniform to progressive inflation. This parameter variation allows controlled tissue separation and approximation, improving the cosmetic appearance of the surgical site while keeping the basic balloon structure simple to manufacture.
3Productivity
If a traditional balloon dissector inflates all at once, then the inflation process is fast, but controlled tissue separation is difficult to achieve
Solution Approach 1:
The balloon inflation process is segmented into multiple controlled phases along its length, with each segment inflating at a controlled rate. This allows the proximal end to inflate first, creating initial anatomical space, followed by progressive inflation of distal segments, enabling precise control over tissue separation while maintaining overall efficiency.
Solution Approach 2:
The inflation system transitions from a static simultaneous inflation to a dynamic progressive inflation with controlled rates. This dynamic control allows the surgeon to adjust the inflation process in real-time to achieve optimal tissue separation, improving precision while maintaining productivity through automated control mechanisms.
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 more controlled tissue separation and reduced tension during surgical procedures, improving cosmetic outcomes and procedural efficiency by allowing for a gradual expansion of the anatomical space.
Implementation Method 1
providing inflation fluid to the dissection balloon to inflate the dissection balloon progressively along the longitudinal axis from the proximal portion to the distal portion
Data Source
AI summary
A balloon dissector assembly includes a balloon dissector having an elongate shaft, a handle disposed on a proximal portion of the elongate shaft, and a dissection balloon supported on a distal portion of the elongate shaft. The dissection balloon includes a substantially cylindrical shape having a deflated condition in which the dissection balloon includes a first diameter between the proximal and distal ends, an inflated condition in which the dissection balloon includes a second diameter between the proximal and distal ends, and a plurality of intermediate conditions in which the balloon transitions from the deflated condition to the inflated condition progressively from the proximal end to the distal end.