Gentle-Mode Insufflator Pressure Control Under Leaks and Suction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing insufflators struggle to achieve patient-specific, minimal pressure control in body cavities during medical procedures, requiring significant time and effort for individualized settings, and face challenges with leaks and suctioning, leading to suboptimal patient protection and procedural efficiency.
Innovation Solution
An insufflator with an input processing system that allows for precise target pressure settings through adjustable gas flow and pressure sensors, enabling user-defined adjustments without additional effort, and incorporates memory for storing setpoint pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a control system maintains minimal pressure in the body cavity, then patient safety is improved and structures are protected from injury, but insufficient space is created for surgical procedures
Solution Approach 1:
The insufflator implements dynamic pressure control that automatically adjusts the target pressure based on real-time measurements of actual pressure and volume in the body cavity. The control system continuously monitors these parameters and adapts the insufflation rate to maintain optimal pressure levels, transitioning from static preset pressures to dynamic adaptive control. This resolves the contradiction by finding the precise pressure balance point that ensures both patient safety and adequate surgical space.
2Reliability
If individualized target pressure settings are implemented for each patient, then patient-specific protection is improved, but significant time and effort are required from the surgeon
Solution Approach 1:
The insufflator implements self-service through automatic patient-specific parameter determination. The system autonomously measures actual pressure and volume in the body cavity during the procedure and uses these measurements to automatically calculate and adjust the optimal target pressure for that specific patient. This eliminates the need for surgeons to manually configure individualized settings, saving time while maintaining patient-specific protection through real-time adaptive control.
3Volume of stationary object
If expansion medium is continuously supplied to compensate for leaks and suctioning, then adequate space is maintained, but excessive pressure increases and patient safety deteriorates
Solution Approach 1:
The insufflator implements closed-loop feedback control that continuously monitors actual pressure and volume in the body cavity. When volume loss occurs due to leaks or suctioning, the system detects the pressure drop and automatically adjusts the insufflation rate to maintain the target pressure without excessive increases. The control algorithm distinguishes between normal fluctuations and actual volume loss, providing compensatory insufflation only when necessary while maintaining patient safety through real-time feedback adjustment.
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 efficient, patient-friendly pressure control with minimal dilation, reducing operator interaction and ensuring consistent pressure management during procedures, including suctioning, thus enhancing procedural safety and efficiency.
Implementation Method 1
at least one pressure sensor configured to determine the pressure in the cavity
Implementation Method 2
the gas flow is adjustable by a mass flow controller in the range of 0-50 L/min
Implementation Method 3
Gas connection with proportional valve
Data Source
Figure 1
AI summary
The present invention relates to an insufflator comprising a new type of input processing for the target value of the pressure in the body cavity. The new device makes it possible to specify the pressure in the body cavity as the target pressure when there is sufficient expansion and to incorporate the pressure into the previous regulation in order to work in a manner that is as gentle as possible for the patient.