Validating Customized Ophthalmic Laser Surgical Profiles

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Solution Overview

Problem

Current ophthalmic surgical laser systems lack versatility, flexibility, and customization capabilities, as well as effective networking for sharing and validating surgical profiles, which limits their ability to adapt to individual patient needs and ensures safety and efficacy.

Innovation Solution

A method and system for generating, simulating, and validating customized ophthalmic surgical profiles, including a pattern definition engine, simulation engine, and validation engine, which create a pattern definition file that calculates laser scan coordinates and pulse energy, and validates the profile against predetermined thresholds to ensure safety and efficacy, allowing for customization and sharing of surgical patterns and parameters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If customized surgical profiles are created to improve versatility and adaptability, then the ability to adapt to individual patient needs is improved, but the complexity of validating and ensuring safety increases

Engineering Contradiction:
Improvecustomization capabilityVSAvoidvalidation complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system performs preliminary validation through simulation before actual surgical execution. The validation engine simulates the customized surgical profile's execution and validates parameters such as surgical volume, total energy, and procedure time against predetermined thresholds, ensuring safety before the procedure is performed on the patient.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The validation engine acts as an intermediary between the customized surgical profile creation and actual execution. It mediates by simulating the profile's effects and verifying that all parameters remain within safe thresholds, thereby enabling customization while maintaining safety controls.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If simulation and validation processes are implemented to ensure safety, then reliability is improved, but the procedure time and complexity increase

Engineering Contradiction:
Improvesafety assuranceVSAvoidvalidation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The simulation and validation are performed preliminarily on virtual models and predefined parameters before actual surgical execution. By validating the surgical profile in advance, the system ensures safety without adding time during the actual procedure, as the validation occurs during the planning and preparation phase.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system creates a virtual copy of the surgical procedure through simulation. Instead of testing on actual tissue, the validation engine simulates the surgical profile's execution on a digital model, validating all critical parameters without consuming actual surgical time or resources.

Inventive Principle:
Principle #26Copying

3Manufacturing precision

If comprehensive validation of surgical parameters is performed, then manufacturing precision is improved, but the device complexity and computational requirements increase

Engineering Contradiction:
Improvesurgical parameter accuracyVSAvoidsystem complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The validation engine focuses on validating specific critical parameters (surgical volume, total energy, procedure time) rather than all possible parameters. This localized approach to validation ensures surgical precision for the most critical aspects while avoiding unnecessary complexity from validating every conceivable parameter.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system validates surgical profiles by checking whether parameters remain within predetermined thresholds. The validation engine compares simulated parameter values against established safe ranges, ensuring precision through parameter constraint verification rather than through complex real-time monitoring of all system variables.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3697356B1Customized ophthalmic surgical profiles
Publication Date: 2023.02.15 ALCON INC
  • EP3697356B1 patent drawingFigure 1
  • EP3697356B1 patent drawingFigure 2
  • EP3697356B1 patent drawingFigure 3A~3B

AI summary

A customized surgical profile is validated for execution on a surgical system. In some aspects, a customized ophthalmic surgical profile, which includes a surgical pattern and at least one parameter associated with the surgical pattern, is obtained. A pattern definition file executable by a laser-based ophthalmic surgical system is generated based on the customized ophthalmic surgical profile. Execution of the customized ophthalmic surgical profile on the laser-based ophthalmic surgical system is simulated based on the pattern definition file, and the pattern definition file is validated based on an output of the simulation.