Rotating Smoke Evacuation Adapter for Surgical Access
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Solution Overview
Problem
In minimally invasive surgical procedures, there is a challenge in minimizing smoke and particulates that escape from the surgical site during instrument changes, as existing surgical access devices do not effectively control the evacuation of smoke and gases.
Innovation Solution
An evacuation adapter with a distal and proximal section, featuring a rotatable design that allows for controlled fluid flow, engaging with the surgical access device to selectively allow or block the passage of smoke and gases, utilizing a poka-yoke assembly for proper radial orientation and a port for suction device connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a surgical access device is used without an evacuation adapter, then instrument changes can be performed freely, but smoke and particulates escape into the environment uncontrollably
Solution Approach 1:
The evacuation adapter serves as an intermediary device between the surgical access device and the external environment. It includes a distal section that engages with the surgical access device and a proximal section with a rotatable valve mechanism. This intermediary structure allows controlled evacuation of smoke and particulates while maintaining the ability to perform instrument changes, resolving the contradiction between harmful smoke escape and ease of operation.
2Object-affected harmful factors
If a rotatable valve mechanism is added to control smoke evacuation, then smoke control is improved, but device complexity increases
Solution Approach 1:
The adapter incorporates a rotatable proximal section that can dynamically change between open and closed positions relative to the distal section. This dynamic mechanism allows the valve openings to align with or block the central opening as needed, providing active control over smoke evacuation while maintaining a relatively simple structural design through rotational movement rather than complex multi-component systems.
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
Effectively minimizes smoke and particulates from escaping into the environment by allowing controlled flow during instrument changes and maintaining a sealed environment, enhancing surgical safety and efficiency.
Implementation Method 1
a port configured to engage a suction device... fluid is able to flow from the central opening of the distal section through the port of the proximal section
Data Source
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AI summary
An evacuation adapter for use with a surgical access device includes a distal section selectively engageable with a proximal section. The distal section and the proximal section each include a base, an outer ring, and an inner ring. Each base defines a central opening. Each outer ring defines at least one opening. Each inner ring defines at least one opening. The outer ring of the proximal section includes a port. The proximal section is rotatable relative to the distal section between a first position where fluid is able to flow from the central opening of the distal section through the port, and a second position where fluid is blocked from flowing from the central opening of the distal section through the port.