Endoscopic Irrigation and Suction Feedback for Stable Site Pressure
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Solution Overview
Problem
Endoscopic procedures face challenges in maintaining stable pressure at the anatomical site, as fluctuations in irrigation and suction pressures can harm internal organs.
Innovation Solution
A pressure control system that includes a user input, pressure sensor, and control module to adjust irrigation and suction flow rates to maintain the anatomical environment pressure at a desired level.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If irrigation flow rate is increased to maintain clear visibility and cool the device, then visibility and cooling effect are improved, but pressure of the anatomical environment increases which may harm internal organs
Solution Approach 1:
The system employs a pressure sensor to continuously monitor the pressure within the anatomical environment and feeds this information back to a control module. The control module automatically adjusts the irrigation flow rate based on the sensed pressure to maintain pressure within a safe range, thereby resolving the contradiction between maintaining visibility through increased irrigation and preventing harmful pressure buildup.
2Productivity
If suction flow rate is increased to remove tissue debris and stone fragments, then removal efficiency is improved, but pressure of the anatomical environment decreases which may harm internal organs
Solution Approach 1:
The pressure sensor continuously monitors the pressure within the anatomical environment and provides feedback to the control module. When the suction flow rate causes pressure to drop below the safe range, the control module automatically reduces the suction flow rate, thereby maintaining pressure within safe limits while optimizing removal efficiency.
3Stress or pressure
If both irrigation and suction flow rates are manually adjusted to control pressure, then pressure control is improved, but device complexity and operation difficulty increase
Solution Approach 1:
The system implements self-service pressure control through an automated feedback mechanism. The pressure sensor continuously monitors the anatomical environment pressure, and the control module automatically adjusts both irrigation and suction flow rates based on the sensed pressure, eliminating the need for complex manual coordination by the operator and reducing operation difficulty.
4Reliability
If automated pressure control is implemented to reduce harm to organs, then patient safety is improved, but device complexity increases
Solution Approach 1:
The system implements automated pressure control through a feedback mechanism where a pressure sensor continuously monitors the anatomical environment pressure and provides real-time feedback to a control module. The control module automatically adjusts irrigation and suction flow rates to maintain pressure within safe ranges, thereby improving patient safety while keeping the control logic relatively simple and straightforward.
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
Stabilizes the anatomical environment pressure, reducing harm to internal organs and shortening procedure time while enhancing patient safety.
Implementation Method 1
a pressure sensor configured to sense a pressure of the anatomical environment
Implementation Method 2
The irrigation fluid can also help maintain a clear visibility of the anatomical environment for the clinician performing the procedure. Additionally, the irrigation flow has a cooling effect on the endoscopic tissue removal device and can help dissipate the heat generated during ablation of calculi
Data Source
AI summary
Systems and methods of in situ pressure control at an anatomical environment during a procedure are disclosed. An exemplary irrigation and suction system comprises a user input configured to receive from a user a desired pressure to be applied to the anatomical environment, or a desired flow condition corresponding to the desired pressure. The system comprises a pressure sensor to sense a pressure at or near the anatomical environment, and a control module to adjust one or more of an irrigation flow rate or a suction flow rate of at least one working channel of a medical device to maintain the pressure of the anatomical environment at substantially a level of the desired pressure, or to maintain the desired flow condition in the working channel during the procedure.