Surgical Instrument Jaw Alignment and Feedback Control
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Solution Overview
Problem
Current surgical stapling instruments lack advanced articulation controls and feedback mechanisms, making precise tissue manipulation and staple placement challenging, especially in complex anatomical environments.
Innovation Solution
The development of surgical instruments with enhanced articulation controls, including orientation sensors, magnetic elements, capacitive switches, and illuminated directional indicators, allows for precise articulation and staple placement, integrating a control system that assesses and adjusts the articulation position and firing speed for optimal tissue engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If surgical instruments are equipped with advanced articulation controls and sensors, then surgical precision and control are improved, but device complexity increases
Solution Approach 1:
The patent implements feedback mechanisms through orientation sensors that detect the articulation position of the end effector and provide this information to the control system. The control system processes this feedback and adjusts the articulation controls accordingly, enabling precise positioning and control of the end effector while managing system complexity through intelligent control algorithms.
Solution Approach 2:
The patent replaces traditional mechanical articulation control mechanisms with a combination of magnetic elements, capacitive switches, and electronic sensors. This substitution allows for more precise control and positioning while reducing mechanical complexity through the use of non-contact sensing and electronic control systems.
2Manufacturing precision
If articulation controls are enhanced with multiple sensors and indicators, then staple placement precision is improved, but ease of operation decreases
Solution Approach 1:
The patent incorporates illuminated directional indicators that use color changes and illumination to provide visual feedback to the operator about the articulation position and staple placement orientation. This visual feedback system simplifies operation by providing intuitive directional guidance, offsetting the complexity of multiple sensors and controls.
Solution Approach 2:
The patent introduces illuminated directional indicators as an intermediary between the complex sensor system and the operator. These indicators translate complex sensor data into simple visual cues that guide the operator's actions, making the system easier to operate despite the sophisticated underlying technology.
3Reliability
If the control system adjusts firing speed dynamically, then tissue engagement optimization is improved, but loss of time in assessment and adjustment increases
Solution Approach 1:
The control system performs preliminary assessment of tissue properties and pre-optimizes firing speed parameters before actual staple deployment. By assessing tissue characteristics in advance and pre-adjusting firing parameters, the system minimizes the time required during actual surgical operations while ensuring reliable tissue engagement.
Solution Approach 2:
The patent implements dynamic adjustment of firing speed based on real-time sensor feedback about tissue properties and articulation position. The control system continuously adapts firing parameters during the surgical procedure, optimizing tissue engagement reliability while minimizing time loss through automated real-time adjustments rather than manual intervention.
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
Enables precise and efficient tissue stapling with improved control over staple placement and firing, enhancing surgical precision and reducing tissue damage.
Implementation Method 1
a capacitive switch configured to detect a position of the articulation actuator
Implementation Method 2
a magnetic element and a magnetic sensor configured to detect a position of the articulation actuator
Data Source
AI summary
A surgical instrument comprising an end effector including a first jaw and a second jaw rotatable relative to the first jaw is disclosed. One or both of the first jaw and the second jaw comprise an arrangement for maintaining the alignment between the first jaw and the second jaw. The alignment arrangement can also provide tactile feedback to the operator of the surgical instrument that the surgical instrument is reaching a fully-closed position during a closure stroke.