Surgical Instrument Sensing Apparatus for Tissue Clamping Control
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Solution Overview
Problem
In surgical procedures, it is challenging to maintain the appropriate operating force on organs or soft tissues to avoid damage or slippage, as excessive force can cause injury and insufficient force can lead to interruptions during surgery.
Innovation Solution
A sensing apparatus integrated with a surgical instrument, comprising a touch sensor set, force sensor, displacement sensor, and processing device, which compares actual measurement curves with reference curves to determine the optimal clamping force and tissue characteristics, providing real-time feedback to adjust the operating force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the operating force is increased to prevent tissue slippage, then the stability of clamping is improved, but the risk of tissue damage increases
Solution Approach 1:
The patent implements a feedback mechanism where sensors (force sensor, displacement sensor, touch sensor set) continuously monitor the clamping state and tissue condition, and the processing device adjusts the clamping force in real-time based on the measured data, ensuring stability without exceeding tissue damage thresholds
Solution Approach 2:
The system dynamically changes the clamping force parameter based on real-time measurements of tissue displacement, force, and touch signals, adjusting the parameter to maintain optimal clamping stability while preventing tissue damage
2Object-affected harmful factors
If the operating force is decreased to avoid tissue damage, then the safety of tissue is improved, but the risk of tissue slippage increases
Solution Approach 1:
The feedback mechanism monitors tissue displacement and force continuously, and when slippage is detected (through displacement changes or touch sensor signals), the system automatically increases the clamping force to prevent slippage while still maintaining safety within tissue damage thresholds
Solution Approach 2:
The clamping force is made dynamic rather than static, allowing the system to adapt the force level in real-time based on tissue characteristics and surgical conditions, transitioning between lower safe force levels and higher stabilization force levels as needed
3Measurement precision
If multiple sensors are integrated to improve measurement accuracy, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple sensors (force sensor, displacement sensor, touch sensor set) into an integrated sensing apparatus that works together through a unified processing device, merging their functions to achieve comprehensive tissue measurement with high precision while managing system complexity through integration
Data Source
AI summary
A sensing apparatus is applicable to a surgical instrument having a clamping portion, a linkage rod member and an operating portion. The damping portion is used to damp a target. The sensing apparatus includes a touch sensor set, a force sensor, a displacement sensor and a processing device. The touch sensor set can sense a touch signal between the target and the clamping portion. The force sensor can sense a clamping force applied on the target. The displacement sensor can measure a displacement of the linkage rod member. The processing device includes a database, a processing unit and a comparison unit. The database stores reference curves of different reference objects. The processing unit can build an actual measurement curve of the target. The comparison unit can compare the actual measurement curve with each of the reference curves to obtain one of the reference curves corresponding to the actual measurement curve.