Adjustable Laser Surgery System with Dual Rotator Assemblies
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Solution Overview
Problem
Conventional laser surgery systems have limited adjustability of the laser beam's angle of incidence, making it difficult to align the eye properly for patients with abnormal body shapes or conditions, leading to suboptimal incision placement and potential exclusion of these patients from treatment.
Innovation Solution
A laser surgery system with an optical delivery system that includes two rotator assemblies allowing independent adjustment of the laser beam's polar and azimuthal angles, enabling precise alignment of the beam with the eye's optical axis, and a patient interface that rotates with the assemblies to accommodate varying patient positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional laser surgery systems use a fixed vertical angle of incidence, then the system structure is simple and stable, but the alignment accuracy with the eye's optical axis deteriorates for patients with abnormal body shapes
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed vertical angle of incidence into an adjustable angle of incidence. The optical delivery system incorporates mechanisms that allow the laser beam's angle of incidence to be dynamically adjusted to match the eye's optical axis orientation, thereby improving alignment accuracy for patients with abnormal body shapes while maintaining system stability through controlled adjustment mechanisms.
Solution Approach 2:
The patent implements parameter changes by modifying the angle of incidence parameter from a fixed vertical value to an adjustable parameter. This allows the system to adapt the beam's angular parameters to accommodate variations in patient anatomy and eye orientation, directly addressing the alignment accuracy issue without requiring complete system redesign.
2Adaptability or versatility
If the laser beam's angle of incidence is fixed vertically, then the system is easy to operate, but the adaptability to different patient positions and body shapes deteriorates
Solution Approach 1:
The system transitions from a static fixed-angle configuration to a dynamic adjustable-angle configuration. The optical delivery system includes mechanisms that enable real-time adjustment of the laser beam's angle of incidence, allowing the system to adapt to various patient positions and body shapes while maintaining ease of operation through automated or semi-automated adjustment processes.
Solution Approach 2:
The patent enhances universality by designing the optical delivery system to handle multiple patient configurations and body types. The adjustable angle of incidence mechanism allows a single system to serve diverse patient populations, including those with abnormal body shapes, thereby improving versatility without significantly complicating the overall system architecture.
3Manufacturing precision
If conventional systems maintain a fixed vertical beam angle, then the device complexity is low, but the surgical precision for incision placement deteriorates
Solution Approach 1:
The patent improves incision placement precision by changing the angle of incidence parameter from fixed to adjustable. This allows the laser beam to be precisely aligned with the eye's optical axis, ensuring accurate incision placement. The optical delivery system's adjustment mechanisms are designed to maintain precision while minimizing unnecessary complexity.
Solution Approach 2:
The patent reduces mechanical complexity by substituting complex mechanical positioning systems with optical adjustment mechanisms. The optical delivery system uses optical elements and controlled beam steering to achieve precise angle adjustment, replacing what would otherwise require complex mechanical repositioning of the entire laser system.
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
This solution allows for improved alignment and placement of laser incisions, increasing the accuracy and accessibility of laser eye surgery for a broader patient population, including those with abnormal body shapes, by adjusting the beam's angle to match the eye's orientation, thus enhancing surgical outcomes and patient comfort.
Implementation Method 1
a laser source to produce a pulsed laser beam for inducing photodisruption
Implementation Method 2
produce a pulsed laser beam for inducing photodisruption at a desired angle to treat a material, such as eye tissue
Data Source
AI summary
Systems and methods for adjusting an angle of incidence of a laser surgery system include a laser source to produce a laser beam and an optical delivery system to output the laser beam pulses to an object at an adjustable incident angle. A first rotator assembly receives the beam from the laser source along a first beam axis. The first rotator assembly rotates around the first beam axis and the first rotator assembly outputs the beam along a second beam axis different from the first beam axis. A second rotator assembly receives the beam from the first rotator assembly along the second beam axis. The second rotator assembly rotates around the second beam axis. The second rotator assembly follows the rotation of the first rotator assembly and the first rotator assembly is independent of the rotation of the second rotator assembly.