Ocular Fixation Device with Twist Picks and Magnetic Field
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Solution Overview
Problem
Current ocular fixation tools for securing the eye during surgical procedures, such as implanting scleral prostheses, often require physical suturing or invasive methods, which can be cumbersome and may not provide adequate stability, especially for procedures requiring precise eye fixation and access.
Innovation Solution
The development of an ocular fixation device featuring a body with twist picks that can be securely attached and released from the eye, allowing for easy mounting of surgical tools and providing stable eye fixation without invasive methods, utilizing a design with connection points for tool mounting and adjustable locking mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical suturing or invasive methods are used to secure the eye during surgery, then stable eye fixation is achieved, but tissue trauma and procedural complexity increase
Solution Approach 1:
The patent replaces traditional mechanical suturing systems with a magnetic field-based fixation system. The ocular fixation device uses magnets embedded in a fixation ring that interact with ferromagnetic material in the sclera, eliminating the need for physical penetration and sutures, thereby reducing tissue trauma while maintaining fixation stability
Solution Approach 2:
The patent changes the physical state and properties of materials involved in fixation. By using ferromagnetic material implanted in the sclera that responds to external magnetic fields, the system transitions from mechanical force application to magnetic field interaction, allowing non-invasive yet stable eye fixation during surgical procedures
2Reliability
If traditional fixation tools are used, then eye stability is achieved, but device complexity and ease of operation deteriorate due to cumbersome suturing procedures
Solution Approach 1:
The patent eliminates complex suturing operations by replacing them with a simple magnetic attraction mechanism. The surgeon positions the fixation ring with embedded magnets near the eye, and the magnetic interaction with ferromagnetic scleral material automatically secures the eye without requiring needle threading, knot tying, or other complex manual dexterity operations
Solution Approach 2:
The patent extracts the fixation function from the surgical tool itself and separates it into two components: ferromagnetic material implanted in the sclera and magnets in the fixation ring. This separation allows the fixation mechanism to be applied independently without requiring the surgeon to manipulate complex suture materials, greatly simplifying the operational procedure
3Reliability
If invasive fixation methods are employed, then secure eye mounting is achieved, but device complexity and surgical time increase
Solution Approach 1:
The patent employs preliminary action by having the ferromagnetic material already implanted in the sclera before the fixation procedure. When the fixation ring with magnets is brought into position, the magnetic attraction immediately secures the eye without requiring time-consuming suturing operations, thereby reducing surgical procedure time while maintaining secure fixation
Solution Approach 2:
The patent replaces time-consuming mechanical suturing with instantaneous magnetic attraction. The magnetic field acts immediately upon contact between the fixation ring and the ferromagnetic scleral material, eliminating the sequential steps of needle insertion, thread pulling, and knot tying that characterize traditional fixation methods
Data Source
AI summary
An ocular fixation device includes a body configured to be placed on an eye. The ocular fixation device also includes multiple twist picks configured to be turned to secure the body to the eye and to release the body from the eye. The body includes connection points on which a surgical tool is mountable on the body.