Laparoscopic Air Purifier Closed Loop Filtration
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Solution Overview
Problem
Minimally invasive surgical procedures, such as laparoscopic procedures, face challenges in eliminating unhealthy fumes and impurities from the abdominal cavity, which can expose operating room staff to hazardous substances and contaminate the surgical environment.
Innovation Solution
A surgical device with a closed loop air filtration system, comprising a housing with a filter chamber and a pump chamber, a filter assembly, and a pump, which circulates and filters air within the body cavity, reducing the exhaust of hazardous substances and maintaining a clean environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a closed loop air filtration system is implemented, then the exposure of operating room staff to hazardous substances is reduced, but the device complexity increases
Solution Approach 1:
The filter assembly and pump are nested within the housing structure, with the filter chamber containing the filter assembly and the pump chamber containing the pump. This nesting approach consolidates multiple components into a compact integrated unit that can be inserted through a single port, reducing the need for multiple separate devices while maintaining the closed-loop filtration function.
Solution Approach 2:
The surgical device performs multiple functions through a single integrated system: it provides air filtration, maintains insufflation pressure, and enables remote actuation of surgical instruments. The housing integrates the filter assembly, pump, and instrument actuation mechanisms into one multi-functional device that addresses both patient care and staff protection needs.
2Object-affected harmful factors
If a filter assembly is disposed within the filter chamber, then air filtration effectiveness is improved, but the volume of the device increases
Solution Approach 1:
The filter assembly is disposed within the filter chamber that is integrated into the housing structure. The filter chamber is positioned to utilize the internal volume of the housing efficiently, nesting the filtration components within the existing device footprint rather than adding external volume. This allows effective air filtration while maintaining a compact device size suitable for laparoscopic insertion.
3Productivity
If a pump is disposed within the pump chamber to circulate air, then the air circulation capability is improved, but the device complexity increases
Solution Approach 1:
The pump is integrated into the housing structure with the filter chamber and outlet channel forming a unified air circulation system. The pump chamber is positioned to receive air directly from the filter chamber and discharge through the outlet channel, merging the filtration and circulation functions into a single integrated pathway. This consolidation reduces the number of separate components and connections needed while maintaining effective air circulation capability.
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 device effectively eliminates or reduces the exposure of operating room staff to hazardous substances by creating a closed filtration loop that cleans and recirculates air within the body cavity, improving the safety and cleanliness of the surgical environment.
Implementation Method 1
The pump may include a first suction port in fluid communication with the filter chamber
Implementation Method 2
A filter assembly is disposed within the filter chamber
Implementation Method 3
The pump may include a second suction port in fluid communication with an insufflation fluid. When the second suction port is open, the pump is configured to pressurize the insufflation fluid and discharge the insufflation fluid out through the second lumen
Data Source
AI summary
A surgical device includes a housing and an elongate body extending distally from the housing. The housing defines a filter chamber and a pump chamber therein, the filter chamber in fluid communication with the pump chamber. A filter assembly is disposed within the filter chamber, and a pump is disposed within the pump chamber. The elongate body defines first and second lumens therethrough, and includes at least one first opening in fluid communication with the first lumen and at least one second opening in fluid communication with the second lumen. The first lumen is in fluid communication with the filter chamber of the housing and the second lumen is in fluid communication with the pump chamber of the housing thereby forming a closed filtration loop through the surgical device.