SYSTEM TO ASSESS THE PRESENCE OF WATER AND/OR FOREIGN MATTER IN LUMINAL MEDICAL DEVICES

Smart overview of the Invention

The patent application outlines a system and method for detecting moisture and foreign matter in the lumen of medical devices. It involves using probes with electrodes at each end of the lumen, transmitting an electrical signal, and measuring the voltage drop to calculate surface resistivity. This process determines the presence of moisture or foreign matter by comparing the resistivity to a predefined threshold.

Field of Application

This technology is particularly relevant for reusable luminal medical devices like endoscopes, which require thorough cleaning and drying after use. Ensuring these devices are free from moisture and contaminants is crucial to prevent infection and ensure their safe reuse. The proposed system offers an efficient alternative to traditional inspection methods, which can be time-consuming and costly.

Background and Challenges

Endoscopes and similar devices undergo rigorous cleaning processes, but ensuring complete dryness and freedom from foreign matter is challenging. Conventional methods, such as borescope inspections, often necessitate additional cleaning, adding to labor costs and limiting testing to random samples. This invention addresses these issues by offering a non-invasive, efficient testing method.

Methodology

The method involves attaching probes with electrodes to both ends of the medical device's lumen. An electrical signal is sent through the electrodes, and the resulting DC voltage drop is measured to calculate the lumen's surface resistivity. If the resistivity is below a set threshold, it indicates the presence of moisture or foreign matter, triggering a test status notification.

System Components

The system comprises probes with electrodes, a power and control element, and a processing unit. This setup allows for the calculation of surface resistivity and provides test status notifications through visual or audio alerts. The system can also adapt to different device types by inputting specific characteristics, enhancing its versatility and accuracy.