Surgical Instrument Signal Interference Detection With Embedded Sensors
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Solution Overview
Problem
Existing surgical instruments face challenges in accurately detecting and resolving signal interference during tissue stapling and cutting operations, which can affect the precision and reliability of the procedure.
Innovation Solution
Incorporation of a signal interference detection system within surgical instruments, utilizing a stretchable optical waveguide and Hall effect sensors to monitor the position and load of actuation members, along with a sensing system to detect orientation and orientation changes, ensuring precise control and interference resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If signal interference detection systems are added to surgical instruments, then measurement precision and reliability are improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple sensing capabilities (optical waveguide for position, Hall effect sensors for load, orientation sensors) within the existing surgical instrument structure. The sensors are embedded in the actuation member and shaft assembly, nesting detection functions within the mechanical components rather than adding separate external systems.
Solution Approach 2:
The actuation member serves multiple functions: it provides mechanical actuation for tissue manipulation and simultaneously acts as a carrier for optical waveguides and Hall effect sensors. The shaft assembly integrates structural support with orientation sensing capabilities, reducing the need for separate dedicated sensing components.
2Reliability
If multiple sensors are integrated into the surgical instrument, then reliability is improved through interference resolution, but ease of manufacture deteriorates
Solution Approach 1:
The patent divides the sensing system into distinct functional modules: optical waveguide segments embedded in the actuation member, Hall effect sensors positioned at specific locations, and orientation sensors in the shaft assembly. This segmentation allows each sensor type to be manufactured and tested independently before integration, simplifying the overall manufacturing process.
Solution Approach 2:
The optical waveguides are pre-positioned and secured within the actuation member during manufacturing, and the Hall effect sensors are pre-calibrated before assembly. This preliminary preparation of sensing components ensures proper alignment and functionality while reducing assembly complexity during final instrument manufacturing.
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
Enhances the precision and reliability of surgical stapling and cutting operations by accurately detecting and resolving signal interference, thereby improving the overall performance and safety of the surgical instrument.
Implementation Method 1
utilizing a stretchable optical waveguide and Hall effect sensors to monitor the position and load of actuation members
Implementation Method 2
utilizing a stretchable optical waveguide and Hall effect sensors to monitor the position and load of actuation members
Implementation Method 3
along with a sensing system to detect orientation and orientation changes
Data Source
AI summary
A surgical instrument including a signal interference detection system.