Surgical Stapler Battery Pack Voltage Polling for Stable Power
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current surgical staplers lack an efficient and reliable mechanism for ensuring proper battery management and voltage regulation, which can lead to inconsistent performance and reduced usability during surgical procedures.
Innovation Solution
A surgical instrument with a battery pack that incorporates a voltage polling system, allowing for real-time monitoring and regulation of battery voltage, ensuring consistent power supply to the motor and other components, and featuring an interchangeable shaft assembly with a handle assembly that includes a power management module for efficient energy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional battery management without voltage polling is used, then the device structure remains simple, but the power supply consistency and reliability deteriorate
Solution Approach 1:
The patent implements voltage polling that periodically measures battery voltage and provides feedback to the control system. This feedback mechanism enables real-time monitoring and detection of voltage drops, allowing the system to maintain power supply consistency without requiring complex continuous regulation hardware.
Solution Approach 2:
The battery management system uses software-based voltage polling that leverages the existing microcontroller and ADC resources already present in the surgical instrument. This self-service approach utilizes existing system components to provide voltage monitoring without adding significant external hardware complexity.
2Reliability
If voltage polling is implemented, then the power supply reliability improves, but the system complexity increases
Solution Approach 1:
The voltage polling mechanism establishes a feedback loop where battery voltage is periodically measured and compared against threshold values. This feedback enables the system to detect power issues early and trigger appropriate responses, improving operational reliability through software-based monitoring rather than hardware redundancy.
Solution Approach 2:
The system implements periodic voltage polling at specified intervals rather than continuous monitoring. This partial action approach provides sufficient voltage surveillance to detect drops before they cause failure, while avoiding the excessive complexity of continuous real-time voltage regulation hardware.
3Measurement precision
If continuous voltage monitoring is performed, then the detection precision of voltage drops improves, but the energy consumption increases
Solution Approach 1:
The patent implements periodic voltage polling at predetermined intervals rather than continuous monitoring. This periodic action allows the system to detect voltage drops with sufficient precision by sampling at critical moments, while minimizing energy consumption by keeping the ADC and polling routine dormant between measurement intervals.
Solution Approach 2:
The voltage monitoring is performed at a frequency sufficient to detect clinically relevant voltage drops, but not so frequent as to waste energy. The polling interval is optimized to provide adequate detection precision while conserving battery energy for actual surgical operations.
Data Source
AI summary
A method of operating a medical device comprises electrically connecting a power device to the medical device. The method further comprises sensing at least one characteristic of one of the medical device with the power device. The method further comprises adjusting or maintaining one or more characteristics of an electrical connection feature the power device according to the at least one observed characteristic such that the electrical connection features of the power device and medical device are operationally compatible, and operating the power device according to an operational profile associated with the medical device.