Robotic Surgery Positioning Cart for Precise Arm Alignment
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Solution Overview
Problem
Existing positioning systems for robotic-surgery devices lack mechanisms for precise adjustment and alignment of surgical arms with target vectors, making it difficult to accurately position and orient surgical instruments in three-dimensional space for minimally invasive surgeries.
Innovation Solution
A positioning system comprising a wheeled base with a telescopic pillar, an upper portion with a docking interface for motor-control units, and electronic circuitry that allows vertical displacement, pitching, and longitudinal movement in response to user inputs, along with a visual aid for alignment, enabling precise positioning and orientation of surgical arms relative to surgical access channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing positioning systems are used to support robotic-surgery devices, then the device can be positioned in the operating room, but the system lacks mechanisms for precise adjustment and alignment of surgical arms with target vectors
Solution Approach 1:
The positioning system is divided into separate functional modules: a mobile cart for transportation, a positioning mechanism with multiple degrees of freedom for spatial adjustment, and a docking interface for securing the motor-control unit. This segmentation allows each module to be optimized independently while maintaining overall system precision without excessive complexity.
Solution Approach 2:
The positioning system incorporates dynamic adjustment capabilities through motorized actuators that enable real-time modification of the cart's position, height, and orientation. This allows the surgical arm to be dynamically aligned with target vectors during surgery, improving measurement precision while maintaining manageable system complexity through controlled automation.
2Measurement precision
If the positioning system allows multiple degrees of freedom for precise alignment, then alignment accuracy improves, but the ease of operation decreases due to complex controls
Solution Approach 1:
The positioning system incorporates feedback mechanisms that provide real-time information about the surgical arm's position and orientation relative to the target vector. This feedback enables the operator to make informed adjustments across multiple degrees of freedom, maintaining alignment accuracy while simplifying operation through intuitive, information-rich controls that reduce the cognitive load of managing complex positioning.
3Measurement precision
If the system provides simultaneous vertical displacement and pitching control, then positioning precision is improved, but the device complexity increases
Solution Approach 1:
The positioning system merges multiple control functions into an integrated control unit that simultaneously manages vertical displacement, horizontal positioning, and pitching angles. This consolidation allows the system to achieve high positioning precision through coordinated multi-axis movement while reducing overall device complexity by unifying control electronics, software, and mechanical actuation into a single integrated subsystem rather than separate independent mechanisms.
Data Source
AI summary
A positioning system for a robotic-surgery device comprises a lower portion comprising a pillar section extending from a wheeled base, an upper portion supported by the pillar section and comprising a docking interface adapted for securing thereto a motor-control unit of a robotic-surgery device, and electronic circuitry programmed to cause the upper portion to simultaneously displace vertically and pitch about a pitch-axis member mediating between the pillar section and the upper-portion, in response to a remote user input, so as to pivot a robotic-surgery device secured to the docking interface about a distal end of a surgical arm proximally seated in a surgical-arm-receiving volume of the motor-control unit.