Sulcus Fixation Frame for Intraocular Device Stabilization
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Solution Overview
Problem
Existing methods for implanting intraocular devices, such as Implantable Telescopes, in the ciliary sulcus face challenges with decentration and tilting, which are exacerbated when regular IOLs are already implanted in the capsular bag.
Innovation Solution
A sulcus fixation frame that includes anterior haptic restraint members and a posterior intraocular device receiving member, designed to be securely positioned in the sulcus, minimizing or eliminating decentration and tilting issues by restraining anterior and posterior movement of the IOL.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the Implantable Telescope is placed in the sulcus like suturing an IOL, then the procedure is simpler, but the device becomes very sensitive to decentration and tilting
Solution Approach 1:
The patent introduces a sulcus fixation frame as an intermediary device between the sulcus and the intraocular device. This frame provides stable anchoring points and structural support, mediating the connection between the soft sulcus tissue and the rigid intraocular device, thereby preventing decentration and tilting while maintaining procedural simplicity
Solution Approach 2:
The invention segments the fixation system into distinct components: the sulcus fixation frame with anterior haptic restraint members that engage the sulcus, and the posterior intraocular device receiving member that holds the IOL or Implantable Telescope. This segmentation allows each component to perform its specific function optimally, with the frame providing stability and the receiving member ensuring proper device positioning
2Adaptability or versatility
If the IOL is implanted in the sulcus when capsular bag fixation is not an option, then implantation is possible, but anterior and posterior movement of the IOL occurs
Solution Approach 1:
The sulcus fixation frame acts as a mediator that enables implantation in the sulcus (providing adaptability) while simultaneously preventing anterior and posterior movement (ensuring stability). The frame's structure with anterior haptic restraint members engages the sulcus to provide anchoring, while the posterior receiving member secures the IOL in place
Solution Approach 2:
The invention applies local quality by designing specific portions of the frame with different functions: the anterior haptic restraint members are configured to engage and restrain within the sulcus to prevent anterior movement, while the posterior intraocular device receiving member is designed to secure the IOL and prevent posterior movement, with coupling members connecting these functional zones
Data Source
Figure 1A~1B
Figure 1C
Figure 2A
AI summary
An intraocular assembly includes a sulcus fixation frame (10) including at least one anterior haptic restraint member (12) to which a posterior intraocular device receiving member (14) is coupled by means of coupling members (16). The at least one anterior haptic restraint member (12) includes a sulcus support portion (20), configured to be received in a sulcus of an eye, and haptic support portions (24), configured to block anterior movement of haptics of an intraocular device mounted in the sulcus fixation frame (10) or fixate an IOL in the sulcus.