Patient Interface Holder Optical Channel Design
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Solution Overview
Problem
Current patient interface systems for laser surgery hinder monitoring due to the need to maintain an unobstructed optical path for the laser beam, making it difficult to observe the surgical area without disrupting the laser radiation.
Innovation Solution
A patient interface system with a camera system integrated into the patient interface holder, featuring channels that form an optical path around the laser beam's passage, allowing for monitoring without disturbing the laser radiation, and including illumination and adjustable focusing for clear visualization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the optical path for the laser beam is kept free to maintain precision, then the laser beam can be precisely directed to the tissue, but monitoring the laser-surgical treatment becomes difficult
Solution Approach 1:
The optical path is segmented into two separate channels: one for the laser beam and another for the camera system. The patient interface and holder are designed with distinct passage channels that allow the laser beam to pass through one path while the camera captures images through a separate optical channel, enabling both precise laser delivery and simultaneous monitoring without interference
Solution Approach 2:
The patient interface acts as an intermediary structure that contains separate optical pathways. The interface includes a first passage channel for the laser beam and a second optical channel for the camera system, serving as a mediator that allows both functions to coexist without blocking each other's paths
2Difficulty of detecting and measuring
If a camera system is added to monitor the surgical area, then monitoring capability is improved, but the device complexity increases
Solution Approach 1:
The camera system is merged with the existing patient interface and holder assembly. The connection device integrates the camera system into the holder structure, and the patient interface includes built-in optical channels that guide light from the surgical area to the camera, combining multiple functions into a unified system rather than adding separate complex components
Solution Approach 2:
The patient interface and holder are designed with multi-functionality, serving both as the positioning device for the laser surgery and as the structural framework for integrating the camera system. The same interface structure provides both the laser passage channel and the camera optical channel, making the system universally applicable for both laser delivery and monitoring
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
Enables effective monitoring of the surgical area during laser surgery by providing a clear optical path for the camera system while maintaining the precision of the laser beam, reducing the risk of disturbances and ensuring high-quality imaging.
Implementation Method 1
the patient interface holder and the patient interface comprise channels corresponding to each other, which together bound an optical path between the connection device and the first positioning device
Data Source
AI summary
A patient interface system is disclosed for positioning a patient's eye opposite a laser device for laser surgery. The system including a patient interface for coupling to the patient's eye and a patient interface holder for arranging the patient interface on the laser device. The patient interface holder includes a connection device for coupling a camera system. The patient interface holder and the patient interface have corresponding channels that delimit an optical path between the connection device and the patient interface. The channel of the patient interface is arranged such that is runs at least partially on an outer circumference of a suction cup part of the patient interface. Also disclosed are a camera system, a method for coupling a patient interface with a patient interface holder, as well as a patient interface and a patient interface holder, for a patient interface system.