Ocular Fixation Device with Grooves for Surgical Tool Positioning
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Solution Overview
Problem
During ocular surgery, there is a need to securely fixate the patient's eye to prevent movement and provide precise positioning for surgical tools, especially when implanting scleral prostheses or performing procedures like forming scleral tunnels, which existing methods fail to adequately address.
Innovation Solution
An ocular fixation device with a body that includes multiple tine assemblies with twist picks to secure and release the device from the eye, and grooves for positioning surgical tools, allowing for stable eye fixation and tool alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing fixation methods are used to secure the eye during surgery, then the eye can be held in place, but precise positioning for surgical tools cannot be achieved
Solution Approach 1:
The fixation device body is divided into multiple corners and sides, with each corner containing a passage for tine assemblies. This segmentation allows independent positioning and securing functions at different locations, enabling both stable eye fixation and precise tool positioning without interfering with each other.
Solution Approach 2:
The fixation device body acts as an intermediary between the eye and surgical tools. It provides a stable base on the eye while offering grooves that receive surgical tool projections, thereby mediating the positioning relationship between the moving eye and the surgical instruments.
2Stability of the object's composition
If the fixation device is secured tightly to prevent eye movement, then eye stability is improved, but the device becomes difficult to release and reposition
Solution Approach 1:
The tine assemblies incorporate a twist pick mechanism that allows dynamic adjustment between secured and released states. By rotating the twist pick, the tines can be inserted through the passage to secure the device tightly to the eye, or withdrawn to allow easy release and repositioning, providing on-demand stability control.
Solution Approach 2:
The tine assemblies can be temporarily inserted to secure the device during surgery, then discarded (withdrawn) when release is needed. This allows the device to be securely attached when required and easily removed when repositioning is necessary, without permanent attachment.
3Ease of operation
If the fixation device structure is simplified for ease of use, then ease of operation is improved, but multiple positioning points for surgical tools cannot be provided
Solution Approach 1:
The fixation device body serves multiple functions: it provides stable eye fixation through corner passages and tine assemblies, while simultaneously offering multiple grooves along its sides for receiving surgical tool projections. This multi-functionality allows a single device structure to support both fixation and multiple positioning points without requiring separate devices.
Solution Approach 2:
The device combines the fixation function (corners with passages) and the positioning function (grooves on sides) into a single integrated body structure. This merging allows the device to provide both eye stabilization and multiple surgical tool positioning points simultaneously, enhancing versatility without complicating the overall design.
Data Source
AI summary
A device includes a body configured to be placed on an eye and multiple tine assemblies configured to secure the body to and release the body from the eye. The body includes multiple corners and multiple sides. Each corner includes a passage through the corner. Each side connects an adjacent pair of corners. Each tine assembly includes a twist pick configured to be inserted through one of the passages. Bottom surfaces of the sides are raised relative to bottom surfaces of the corners such that the bottom surfaces of the sides are spaced apart from the eye when the bottom surfaces of the corners are resting on the eye. Each of at least one side includes multiple openings configured to allow manipulation of a position of the body and a groove configured to receive a projection from a surgical tool in order to position the surgical tool on the eye.