Motor-Driven Ocular Implant Insertion Apparatus One-Handed Operation

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Solution Overview

Problem

Conventional ocular implant insertion apparatus often require two hands for operation, limiting the surgeon's ability to control the eye or other instruments during the insertion process due to the need for manual handling of the plunger.

Innovation Solution

A preloaded ocular implant insertion apparatus with a non-manually driven plunger driver that allows the surgeon to operate the insertion apparatus with one hand, enabling the other hand to control the eye or other instruments, using a plunger driver that moves the plunger from a storage position to a fully deployed position within the eye.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a manually driven plunger is used in conventional ocular implant insertion apparatus, then the surgeon can control the plunger movement, but both hands are required to operate the insertion apparatus

Engineering Contradiction:
Improvehand freedom during insertionVSAvoidplunger driving mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces the manual mechanical plunger driving system with an automated motor-driven system. The motor (223) automatically drives the plunger (222) to push the ocular implant through the nozzle, eliminating the need for manual hand-cranking while providing controlled, consistent force for insertion.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The insertion apparatus is designed to be pre-loaded with the ocular implant at the factory, eliminating the need for surgeon intervention in the loading process. The device then autonomously performs the insertion sequence: folding the implant, positioning it, and pushing it through the nozzle without requiring manual manipulation of multiple components.

Inventive Principle:
Principle #25Self-service

2Reliability

If a preloaded insertion apparatus is used, then operator error in loading the implant is eliminated, but the apparatus requires precise control of the plunger movement

Engineering Contradiction:
Improveloading accuracyVSAvoidplunger control difficulty
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces manual plunger control with an automated motor-driven system that provides precise, programmable control over plunger movement. The motor can be programmed to deliver the exact force and distance needed for safe implant insertion, eliminating the difficulty of manual control while maintaining reliability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system incorporates sensors and control mechanisms that monitor plunger position and force applied to the implant. This feedback allows the motor to adjust its operation in real-time, ensuring precise control and preventing excessive force that could damage the implant or surrounding tissue.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If both hands are required to operate the insertion apparatus, then precise control of plunger movement is achieved, but the surgeon cannot simultaneously control the eye or other instruments

Engineering Contradiction:
Improveplunger movement controlVSAvoidsurgeon's hand availability
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent replaces manual two-handed plunger operation with an automated motor-driven system. The surgeon simply activates the motor, which then autonomously controls plunger movement with precise force and position control, freeing both hands for other surgical tasks.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The motor acts as an intermediary between the surgeon's simple activation input and the complex task of precise plunger control. The motor translates a simple button press or trigger pull into the sophisticated coordinated movements needed for safe implant insertion, while the surgeon maintains oversight and control.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP2928423B1Ocular implant insertion apparatus
Publication Date: 2020.07.15 HOYA CORPORATION
  • EP2928423B1 patent drawingFigure 1~3
  • EP2928423B1 patent drawingFigure 4~7
  • EP2928423B1 patent drawingFigure 8

AI summary

An ocular implant insertion apparatus that includes a plunger driver that is not manually powered and ocular implant insertion methods. There are a variety of instances where an ocular implant is inserted into the anterior chamber, posterior chamber, cornea, vitreous space and/or other portion of an eye. Exemplary ocular implants include, but are not limited to, lenses, capsular tension rings, ocular prosthesis and lamellar transplants.