Patient Securing System for Robotic Eye Surgery
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Solution Overview
Problem
Robotic eye surgery systems face challenges in safely managing patient movements during procedures, as existing systems lack reliable detection and rapid response mechanisms to prevent instrument-eye collisions, which can lead to irreversible damage.
Innovation Solution
A securing system that incorporates ocular and cephalic sensors to detect eye and head movements, processing data to determine risk levels and automatically emit securing commands to the robotic platform, ensuring patient safety by adjusting the surgical instrument's position in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a robotic platform is used to perform eye surgery, then surgical precision and filtering of practitioner movements are improved, but the ability to detect and respond to patient movements is worsened due to loss of direct practitioner-patient contact
Solution Approach 1:
The patent introduces an intermediary detection system (sensors, cameras, tracking devices) between the robotic platform and the patient's eye/head. This intermediary system continuously monitors patient movements and transmits data to the control unit, which then adjusts the robotic instrument's position accordingly. This resolves the contradiction by maintaining robotic precision while adding automatic movement detection capability that compensates for the loss of direct practitioner contact.
Solution Approach 2:
The system implements a closed-loop feedback mechanism where sensors detect patient eye and head movements, the control unit processes this information, and the robotic platform automatically adjusts the instrument position in real-time. This feedback loop ensures that the robotic system remains reliable and responsive to patient movements despite the practitioner's indirect control, thus resolving the contradiction between robotic precision and movement detection reliability.
2Device complexity
If manual triggering mechanism is used to move the instrument away from the eye, then the system remains simple, but the reaction time is too slow to prevent injury from sudden patient movements
Solution Approach 1:
The system performs preliminary actions by continuously monitoring patient movements and pre-positioning the robotic instrument in safe positions before potential collisions occur. The control unit anticipates dangerous movements based on sensor data and proactively adjusts the instrument position, rather than waiting for manual triggering after a collision risk is evident. This eliminates the need for manual triggering while maintaining system simplicity and achieving rapid response.
Solution Approach 2:
The robotic system serves itself by automatically detecting patient movements and adjusting its own position without requiring manual intervention. The control unit processes sensor data and autonomously commands the robotic platform to move the instrument away from potential collision zones. This self-service capability achieves fast reaction speeds while keeping the system relatively simple, resolving the contradiction between simplicity and reaction speed.
3Stability of the object's composition
If the surgical instrument is rigidly carried by the robotic platform, then instrument stability is improved, but the ability to adapt to sudden patient movements is worsened
Solution Approach 1:
The system combines rigid instrument mounting with dynamic control. The instrument is rigidly carried by the robotic platform to maintain stability during normal operation, but the robotic platform itself is dynamically controllable through servo motors and feedback mechanisms. When patient movements are detected, the control unit dynamically adjusts the platform's position and orientation in real-time, allowing the rigidly mounted instrument to adapt to changing conditions while maintaining its inherent stability.
Solution Approach 2:
The feedback mechanism enables the rigidly mounted instrument to adapt to patient movements by continuously monitoring eye and head position and automatically adjusting the robotic platform's configuration. The control unit processes sensor data and commands real-time adjustments to the platform, allowing the stable rigid instrument to respond adaptively to sudden patient movements without compromising its structural stability.
Data Source
AI summary
Disclosed is a system (100) for securing a patient, intended to interact with a robotic platform equipped with a surgical instrument (30) suitable for eye surgery, the system comprising: —at least one ocular sensor (110) capable of detecting movement of an eye (10) of the patient and/or at least one cephalic sensor (120) capable of detecting a movement of the head (20) of the patient; and—a data processing means (130) for receiving data from the ocular sensor (110) and/or the cephalic sensor (120), processing the data in order to determine a level of risk for the patient on the basis of a predetermined criterion, then automatically sending a command for securing the patient to the robotic platform, the command being dependent on the previously determined risk level.