Insufflation Line Adaptor for Laparoscopic Pneumoperitoneum
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Establishing pneumoperitoneum in minimally-invasive laparoscopic surgical procedures using the Veress needle technique requires high dexterity and can lead to complications due to the stiffness and shape memory of insufflation tubing, causing difficulties in maneuvering and attaching the insufflation line, which may result in slippage and breaches of the sterile boundary.
Innovation Solution
The use of insufflation line adaptors that rotate the connection point of the tubing to the Veress needle by 90 degrees, allowing for a more ergonomic grip and reducing the arc or bend in the tubing, thereby improving control and stability during connection, and can be configured for high-flow systems with features like humidification or heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the insufflation line is attached directly to the Veress needle with axial alignment, then the connection is straightforward, but the tubing creates a large arc or bend that is difficult to manage and increases the likelihood of breaching the sterile boundary
Solution Approach 1:
The adaptor introduces a perpendicular dimension to the axial alignment by orienting the insufflation tubing at approximately 90 degrees relative to the Veress needle axis. This dimensional change transforms the tubing path from a large arc bending back on itself to a straighter, more manageable configuration that reduces the risk of breaching the sterile boundary while maintaining ease of attachment.
2Ease of operation
If the insufflation tubing is manipulated by gripping the needle-to-insufflation line coupling tightly, then attachment can be achieved, but the stiff tubing with shape memory becomes difficult to maneuver with one hand
Solution Approach 1:
The adaptor serves as an intermediary component between the Veress needle and the insufflation tubing. By providing a standardized interface with Luer lock connectors and orienting the tubing perpendicularly, the adaptor simplifies the manipulation process and reduces the dexterity requirements for single-handed operation, allowing the user to focus on securing the connection without struggling with the tubing's stiffness and shape memory.
3Reliability
If the Veress needle is held stationary during connection, then stability is maintained, but high dexterity is required to attach the insufflation line without slippage
Solution Approach 1:
The adaptor acts as a stable intermediary that bridges the stationary Veress needle and the insufflation tubing. Its Luer lock connector design provides inherent stability and prevents slippage during attachment, while the perpendicular orientation of the tubing reduces the dexterity requirements for manipulation. This intermediary component ensures reliable connection stability without demanding excessive dexterity from the user.
4Device complexity
If the insufflation line is oriented axially aligned with the Veress needle, then the connection geometry is simple, but the tubing arc or bend creates difficulty in management and increases complication risk
Solution Approach 1:
The adaptor fundamentally changes the spatial arrangement by orienting the insufflation tubing at approximately 90 degrees to the Veress needle axis. This dimensional transformation eliminates the large arc or bend that would otherwise form in the tubing, simplifying its management and reducing the risk of complications such as subcutaneous emphysema and gas embolism while maintaining geometric simplicity through the standardized perpendicular configuration.
Data Source
AI summary
A medical device includes an elbow, a first low-flow medical fluid fitting, and a first high-flow medical fluid fitting. The elbow includes a first end, a second end opposite the first end, and a bend between the first end and the second end. The first low-flow medical fluid fitting is coupled to the first end of the elbow and configured to be coupled to and seal with a complimentary second low-flow medical fluid fitting at a proximal end of a pneumocavity needle. And, the first high-flow medical fluid fitting is coupled to the second end of the elbow and configured to be coupled to and seal with a complimentary second high-flow medical fluid fitting of a high-flow medical fluid line.