Hybrid Vitrectomy Infusion Probe to Reduce Retinal Surgery Incisions

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Solution Overview

Problem

Vitreoretinal procedures require multiple microsurgical instruments, leading to increased incision number and limited operating space, complicating the procedure and reducing surgeon control.

Innovation Solution

A combined treatment and infusion probe with a hybrid gauge system, integrating infusion and treatment functionalities into a single instrument, reducing the need for separate infusion cannulas and allowing easier manipulation of the eye during surgery.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple separate microsurgical instruments are used for vitreoretinal procedures, then all required surgical functions can be performed, but the number of incisions increases and operating space becomes limited

Engineering Contradiction:
Improvesurgical function completenessVSAvoidnumber of instruments
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the infusion cannula and treatment instrument into a single hybrid instrument. The infusion portion with lumen for fluid delivery is integrated with the treatment portion containing the vitrectomy device, allowing both infusion and treatment functions to be performed through one incision site, thereby reducing the number of instruments and incisions required.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The hybrid instrument serves multiple surgical functions simultaneously. The infusion portion delivers fluid to maintain intraocular pressure while the treatment portion performs vitreous severing and removal. This multi-functional design eliminates the need for separate dedicated instruments for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple separate microsurgical instruments are used, then all surgical functions are available, but surgeon control and manipulation of the eye is reduced

Engineering Contradiction:
Improvesurgical function availabilityVSAvoideye manipulation control
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

By merging the infusion cannula and treatment instrument into a single hybrid probe, the surgeon gains better control over eye manipulation. With fewer instruments to manage, the surgeon can more effectively position and manipulate the eye using the combined instrument while maintaining all necessary surgical functions.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If separate infusion cannula and treatment instrument are used, then fluid delivery and tissue treatment functions are independent, but the procedure becomes more complex

Engineering Contradiction:
Improvefunctional independenceVSAvoidprocedural complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent integrates the infusion cannula and treatment instrument into a single hybrid probe with coordinated functionality. The infusion portion and treatment portion work together in a unified structure, reducing procedural complexity by eliminating the need to coordinate multiple separate instruments while maintaining functional independence through separate lumens and channels within the same device.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12465521B2Hybrid 2-port vitrectomy and combined treatment and infusion probe
Publication Date: 2025.11.11 ALCON INC
  • US12465521B2 patent drawing
  • US12465521B2 patent drawing
  • US12465521B2 patent drawing

AI summary

The present disclosure generally relates to microsurgical instruments for ophthalmic surgical procedures, and more particularly, methods and microsurgical instruments for vitreoretinal procedures. In certain embodiments described herein, a vitreoretinal procedure is performed utilizing two surgical instruments: 1) a treatment instrument configured to a) treat a target ophthalmic tissue (e.g., sever and remove the vitreous body), and b) infuse fluid into the intraocular space to maintain intraocular pressure (IOP); and 2) an illumination probe for providing illumination within the intraocular space. The combined treatment and infusion functionalities of the treatment instrument eliminate the need for a separate infusion cannula, thus enabling the vitreoretinal procedure to be performed with only two instruments and reducing the number of incisions made in the eye. Additionally, utilization of two instruments facilitates easier manipulation of the eye by a surgeon, as one of the two instruments can be used to “steer” the eye during the procedure.