Adjustable Fiber Eye Surgical Lighting Unit
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Solution Overview
Problem
Current eye surgical lighting units are limited in their functionality, as they can only operate as either intraocular or chandelier lighting, restricting the versatility and precision of light delivery during ophthalmic procedures.
Innovation Solution
The eye surgical lighting unit features an adjustable fiber that can switch between intraocular and chandelier operational positions, allowing the fiber to be threaded through a handle and cannula for precise intraocular lighting and uncoupled for chandelier lighting, with a movable stop for setting penetration depth and a fixation element for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the fiber is fixed through the handle and cannula for intraocular lighting, then precise positioning and orientation are achieved, but the device loses versatility for chandelier lighting applications
Solution Approach 1:
The fiber is designed with adjustable positioning mechanisms including a movable stop that can be displaced along the fiber, and a fixation element that can engage or disengage. This dynamic configuration allows the fiber to be precisely positioned when engaged through the handle and cannula for intraocular lighting, while also allowing easy disengagement for chandelier lighting applications, thus resolving the contradiction between precise positioning and versatility
2Adaptability or versatility
If the fiber is made adjustable between intraocular and chandelier positions, then versatility is improved, but device complexity increases
Solution Approach 1:
The fiber assembly is segmented into distinct functional components: the fiber itself, a movable stop for depth control, a fixation element for securing position, and the handle with internal passage. This segmentation allows each component to perform its specific function independently, making the overall adjustment mechanism simpler and more reliable while achieving versatility between intraocular and chandelier lighting modes
3Stability of the object's composition
If a fixation element is added to secure the fiber in intraocular position, then stability is improved, but the ease of operation for switching modes deteriorates
Solution Approach 1:
The fixation element is designed to automatically engage with the fiber at predetermined positions along its length. This preliminary preparation of engagement points allows the fiber to be quickly and easily secured or released without complex manual adjustment, improving both stability during intraocular lighting and ease of operation when switching to chandelier lighting mode
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 dual-functionality enables precise and adaptable lighting for both intraocular and chandelier applications, enhancing the surgeon's ability to achieve desired light distribution and positioning within the eye, supporting both monocular and bimanual surgical techniques.
Implementation Method 1
a fiber having a proximal end and a distal end, for guiding a light beam to the distal end
Data Source
AI summary
The invention relates to an eye surgical lighting unit for lighting internal ocular tissue. The lighting unit comprises a fiber having a proximal end and a distal end, for guiding a light beam to the distal end. The lighting unit also comprises a manual unit, provided with a cannula and a handle having an internal passage positioned in line with the cannula. The fiber is adjustable between an intraocular operational position in which the fiber extends through the internal passage of the handle and through the cannula, and a chandelier operational position in which the fiber is uncoupled from the manual unit.