Multi-modal Surgical Gas Circulation System for Stable Cavity Pressure
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Solution Overview
Problem
Existing multi-modal surgical gas delivery systems are limited in their ability to generate sufficient output power for multiple gas sealed access ports, restricting the types of surgical procedures that can be performed effectively, especially in robotically assisted laparoscopic surgeries where multiple ports are necessary to reduce gas leakage and mechanical wear.
Innovation Solution
A multi-modal surgical gas circulation system comprising a primary gas circulation device with a primary pump and insufflator, and subordinate gas circulation devices, each with a subordinate pump, that work in conjunction to maintain stable pressure within the surgical cavity by generating and recirculating pressurized gas through dual or single lumen gas sealed access ports, with a central processor for networked control and calibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single gas circulation pump is used to provide output power for multiple gas sealed access ports, then the device complexity is reduced, but the productivity is insufficient to generate adequate gaseous seals in multiple ports simultaneously
Solution Approach 1:
The system divides the gas circulation function into multiple independent pumps, each dedicated to a specific gas sealed access port. This segmentation allows each pump to provide sufficient output power for its assigned port while maintaining overall system manageability and reducing the burden on any single component.
Solution Approach 2:
Each pump is designed to perform multiple functions: generating gaseous seals, maintaining cavity pressure, and supporting various surgical procedures through a single device. This multi-functionality increases productivity without proportionally increasing overall system complexity.
2Adaptability or versatility
If multiple gas sealed access ports are used to perform complex surgical procedures, then the versatility is improved, but the device complexity increases due to the need for multiple pumps and networked control
Solution Approach 1:
Multiple pumps are merged into a unified networked control system managed by a central processor. This allows the system to function as an integrated whole while maintaining the versatility needed for complex surgical procedures, balancing adaptability with manageable complexity.
Solution Approach 2:
The networked control system incorporates feedback mechanisms that allow the central processor to monitor and adjust the operation of each pump based on real-time surgical conditions. This feedback loop enables the system to adapt to varying surgical requirements while maintaining coordinated operation across multiple ports.
3Device complexity
If conventional mechanical seals are used in access ports, then the device complexity is reduced, but the reliability decreases due to gas leakage and mechanical wear
Solution Approach 1:
The system replaces conventional mechanical seals with a gaseous seal mechanism. Pressurized gas is directed through nozzles to create a sealing barrier at the interface between the access port and surgical cavity. This substitution eliminates the mechanical wear and gas leakage problems associated with traditional mechanical seals while maintaining adequate complexity through the gas circulation system.
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 system effectively generates gaseous seals in multiple access ports, reducing gas leakage and mechanical wear, enabling more complex surgical procedures by providing sufficient output power and maintaining stable pressure, thus enhancing the versatility of endoscopic surgical procedures.
Implementation Method 1
a pump configured to deliver a flow of pressurized gas to a delivery lumen
Implementation Method 2
receive pressurized gas from the delivery lumen to generate a gaseous seal within the access port
Implementation Method 3
receive spent gas from the access port through a return lumen
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A system for performing an endoscopic surgical procedure in a surgical cavity is disclosed which includes a primary gas circulation device housing a central processor and a primary pump, the primary pump controlled by the central processor and configured to deliver a flow of pressurized gas to a primary gas delivery lumen and to receive gas from a primary gas return lumen, and a plurality of subordinate gas circulation devices each housing a respective subordinate pump configured to deliver a flow of pressurized gas to a respective subordinate gas delivery lumen and to receive gas from a respective subordinate gas return lumen, wherein the subordinate pump in each subordinate gas circulation device is in networked communication with and controlled by the central processor of the primary gas circulation device.