Electrosurgical Generator Activation Counter and Warning System
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Solution Overview
Problem
Existing electrosurgical generators face challenges in ensuring the safety and usability of sterile instruments, as tracking usage time and activations can lead to contamination risks and unexpected shutdowns, as the real usage time may not correspond to the recorded time, and devices may disable instruments during active use.
Innovation Solution
An electrosurgical generator system that includes an instrument detection device for unique identification, a control device for generating warnings and deactivation, and a time tracking device to record continuous activation duration independently of the instrument's operating state, allowing for instrument-specific warning and shut-off times to prevent prolonged use and surprise shutdowns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the instrument tracks active usage time and number of activations, then the instrument can be disabled when usage limits are exceeded, but the real passed time may not correspond to the recorded active usage time, creating contamination risk
Solution Approach 1:
The system performs preliminary action by issuing a warning indication before disabling the instrument. When the activation counter reaches the predetermined limit, the system first alerts the user through visual or audible warnings, giving advance notice before the instrument is actually disabled. This prevents surprise shutdowns and allows proper instrument retrieval and replacement.
2Reliability
If the instrument is disabled when usage time or activation limit is reached, then safety is improved, but the instrument may be disabled during active use, causing surprise shutdowns
Solution Approach 1:
The system performs preliminary action by issuing a warning indication before disabling the instrument. When the activation counter reaches the predetermined limit, the system first alerts the user through visual or audible warnings, giving advance notice before the instrument is actually disabled. This prevents surprise shutdowns and allows proper instrument retrieval and replacement.
Solution Approach 2:
The system implements feedback by providing continuous monitoring of the activation counter and giving real-time warning indications to the user. The feedback mechanism allows the user to see how many activations remain and prepares them in advance for the upcoming disablement, improving operational awareness and planning.
3Ease of manufacture
If the generator stores usage data in the generator rather than on the instrument, then the instrument construction is simplified, but the device complexity of the generator increases
Solution Approach 1:
The system extracts the data storage function from the instrument and places it in the generator. The instrument only needs to provide a simple unique identifier (such as a serial number or RFID tag), while the generator handles all complex data storage, activation counting, and usage tracking. This significantly simplifies instrument design and manufacturing.
Solution Approach 2:
The generator serves multiple functions: it provides electrical power to the instrument, stores usage data for multiple instruments, tracks activation counts, manages usage limits, and provides user interfaces for monitoring and control. By consolidating these functions in the generator, the system avoids duplicating complex functionality in each instrument.
Data Source
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AI summary
The invention relates to an electrosurgical generator for operating an electrosurgical instrument, characterized in that the electrosurgical generator comprises a data storage device coupled to the control device for storing a warning time and a switch-off time, the warning time and the switch-off time each being assigned to a detected instrument in order to assign an instrument-specific warning time and switch-off time to each detected instrument, a time tracking device for determining an instrument-specific activation duration, wherein the activation duration is a duration of time detected from a first connection or a first activation of an electrosurgical instrument connected to the instrument terminal to an actual time value, and wherein an activation duration is detected for each detected instrument, and the activation duration is recorded continuously and independently of an operating state of the electrosurgical instrument, and the control device triggers the warning indication by triggering the signaling device when the determined activation duration exceeds the instrument-specific warning time of the connected instrument, and/or the control device triggers the taking or keeping the connected instrument out of operation by controlling the deactivation device when the determined activation duration exceeds the instrument-specific switch-off time. The invention also relates to an electrosurgical generator system and a method for operation an electrosurgical generator.