Instrument Holder for Robotic Surgery with Adjustable Bracket
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Solution Overview
Problem
Current minimally invasive surgical instruments and robotic systems lack effective tactile feedback and offer limited degrees of freedom, making them less efficient and more challenging to use.
Innovation Solution
A support mechanism for medical devices that includes an adjustable support with elongate members, a bracket, and an instrument holder, allowing for proximal divergence of medical instruments and adjustable angular orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If robotic systems are used to control surgical instruments, then automation and precision are improved, but tactile feedback is lost and degrees of freedom are limited
Solution Approach 1:
The support mechanism acts as an intermediary device between the robotic system and the surgical instrument, providing mechanical coupling that transmits tactile feedback from the instrument to the operator while maintaining robotic control capabilities. The bracket and instrument holder assembly serves as a physical mediator that bridges the gap between automated control and human sensory feedback.
2Extent of automation
If robotic systems are used to control surgical instruments, then automation is improved, but degrees of freedom are limited
Solution Approach 1:
The support mechanism incorporates dynamic elements including the adjustable bracket positioned at specific angles (e.g., 45 degrees) relative to the instrument holder, and the arm that can be positioned at various angles (e.g., 30 degrees) to the longitudinal axis. These dynamic positioning capabilities allow the system to adapt to different surgical configurations and instrument orientations, thereby increasing degrees of freedom while maintaining robotic control.
3Device complexity
If fixed instrument positioning is used, then device complexity is reduced, but ease of operation and effectiveness are worsened
Solution Approach 1:
The support mechanism is segmented into distinct components: a bracket with angular adjustment capability, an instrument holder, and an arm with positional adjustment. Each segment can be independently positioned and adjusted, allowing complex instrument positioning to be achieved through simple, modular adjustments rather than a monolithic complex mechanism.
4Ease of operation
If adjustable support mechanism is implemented, then ease of operation and degrees of freedom are improved, but device complexity increases
Solution Approach 1:
The support mechanism is designed with multi-functional capabilities: the bracket can be positioned at various angles to accommodate different instrument orientations, the arm can be adjusted to different positions along its length, and the entire assembly can be oriented at different angles to the horizontal plane. This universality allows a single device to perform multiple positioning functions, reducing the need for multiple separate adjustment mechanisms.
Data Source
AI summary
A support mechanism for a medical device may include an adjustable support that includes a plurality of elongate members movable relative to one another. The support mechanism may also include a bracket coupled to the adjustable support. The bracket may be adapted to be coupled to a first medical device that extends along a longitudinal axis. The support mechanism may also include an instrument holder that extends along a central axis. The instrument holder may be movably coupled to the bracket and adapted to be coupled to a second medical device. The bracket and the instrument holder may be oriented such that central axis of the instrument holder intersects the longitudinal axis at an angle.