Surgical Fixation Tool with Sloped Support for Atraumatic Eye Stabilization

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current surgical tools for ophthalmic procedures lack effective mechanisms for stabilizing and manipulating the eye during procedures like injection into the suprachoroidal layer without causing trauma or perforation of sensitive tissues.

Innovation Solution

A surgical fixation tool with at least one fixation member, featuring a needle with a sharp tip and a support structure with sloped surfaces, designed to protrude from a leg of a proximal grasping portion, allowing for stabilization and manipulation of the eye without perforating the sclera or other sensitive layers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a sharp needle tip is used for penetrating ocular tissues, then penetration capability is improved, but risk of trauma and perforation increases

Engineering Contradiction:

Improvepenetration capabilityVSAvoidrisk of trauma and perforation

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The needle design incorporates a blunt tip instead of a sharp tip, changing the geometric parameter of the needle end to reduce tissue damage while maintaining penetration capability through controlled force application

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

A support structure with sloped surfaces acts as an intermediary between the needle and the ocular tissue, distributing the penetration force across a larger area and preventing direct concentrated stress that could cause trauma or perforation

Inventive Principle:

Principle #24Intermediary (Mediator)

2Stability of the object's composition

If the fixation tool provides stable anchoring to the sclera, then stabilization capability is improved, but risk of scleral perforation increases

Engineering Contradiction:

Improvestabilization capabilityVSAvoidrisk of scleral perforation

Core Design Contradiction:

Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The anchoring members feature blunt tips instead of sharp tips, changing the contact parameter to allow stable anchoring through compression and friction rather than penetration, thereby preventing scleral perforation while maintaining fixation stability

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The fixation tool incorporates a flexible support structure that can conform to the scleral surface, distributing anchoring forces evenly across the tissue to prevent concentrated stress and perforation while achieving stable fixation

Inventive Principle:

Principle #30Flexible shells and thin films

Data Source

PatentEP4210644B1Surgical fixation tool

Publication Date: 2025.04.30 EVERADS THERAPY LTD

Figure 1~4A
Figure 5~8B

AI summary

A surgical fixation tool (10) includes at least one fixation member (12) which protrudes from a leg (16) of a proximal grasping portion (20). The at least one fixation member (12) includes a needle (28) with a sharp distal tip (29). The needle (28) protrudes distally from a support structure (30) that includes one or more sloped support surfaces (34, 36) that are sloped with respect to a needle shaft (27).