Suction Retractor Handle and Blade for Smoke and Fluid Evacuation

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Solution Overview

Problem

Existing surgical retractors lack ergonomic design, leading to muscle fatigue and loss of grip during prolonged use, and fail to efficiently evacuate surgical plume, smoke, and fluids, with existing smoke evacuation systems being inadequate and cluttered.

Innovation Solution

A retractor with an ergonomically designed handle and blade structure incorporating a fluid passage for simultaneous tissue retraction and evacuation of undesirable fluids, featuring a fan-shaped tip for wide-area suction and transparent sections for visualization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional manual retractor handles are used, then the retractor can perform tissue retraction, but the handle lacks ergonomic design leading to muscle fatigue and loss of grip during prolonged use

Engineering Contradiction:

Improvegrip comfortVSAvoidduration of use

Core Design Contradiction:

Ease of operationVSDuration of action of moving object

Solution Approach 1:

The handle is designed with curved surfaces that conform to the natural shape of the hand, creating an ergonomic grip that distributes pressure evenly and reduces muscle fatigue during prolonged surgical procedures

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

Different sections of the handle have different surface characteristics - some areas are smooth while others have textured or contoured surfaces to provide optimal grip in specific hand positions, enhancing comfort and control

Inventive Principle:

Principle #3Local quality

2Force

If traditional manual retractor handles are used, then the retractor can perform tissue retraction, but greater muscular exertion is required leading to fatigue in the hand, wrist and arm

Engineering Contradiction:

Improvemuscular exertionVSAvoidduration of use

Core Design Contradiction:

ForceVSDuration of action of moving object

Solution Approach 1:

The curved handle design allows the surgeon's hand to grip in a natural position that leverages body weight and arm strength rather than relying solely on hand and wrist muscles, reducing fatigue during extended use

Inventive Principle:

Principle #14Spheroidality (Curvature)

3Object-generated harmful factors

If separate smoke evacuation systems are used, then surgical plume and smoke can be evacuated, but the system becomes cluttered and inadequate

Engineering Contradiction:

Improvesurgical plume evacuationVSAvoidsystem clutter

Core Design Contradiction:

Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The retractor integrates an internal fluid passage system that combines tissue retraction and smoke evacuation functions into a single device, eliminating the need for separate evacuation systems and reducing surgical field clutter

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The retractor blade serves multiple functions simultaneously - it retracts tissue while its internal fluid passage evacuates surgical plume, smoke, and fluids, making the device universal for both retraction and evacuation needs

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Strength

If opaque retractor blades are used, then the blade structure provides sufficient strength, but visualization of evacuable matter is obscured

Engineering Contradiction:

Improveblade strengthVSAvoidvisualization of evacuable matter

Core Design Contradiction:

StrengthVSLoss of information

Solution Approach 1:

The blade is constructed with transparent or translucent sections at strategic locations where evacuation visualization is needed, while maintaining sufficient thickness and structural integrity in other areas to provide the required strength

Inventive Principle:

Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances grip comfort, reduces muscle fatigue, and efficiently evacuates surgical plume, smoke, and fluids while maintaining clear visibility during procedures.

Implementation Method 1

a suction source configured to create negative pressure

Methodology Applied

Scientific EffectSuction: Suction

Implementation Method 2

said retractor further comprises a transparent material, said transparent material comprising at least a portion of said blade and/or said handle and permitting visual observation of said fluid passage

Methodology Applied

Scientific EffectTransparency:

Data Source

PatentUS12496053B2Retractor

Publication Date: 2025.12.16 BARTON ESABELLE

AI summary

A retractor for retracting tissue and suctioning fluids, having a handle and a blade and a fluid passage therethrough connecting to a suction source, the fluid passage directing suction to perforations in the blade through which undesirable fluids, including surgical plume, may be evacuated. The retractor may be, in whole or part, transparent to observe suctioning. The blade may include a fanned tip for wide tissue-engagement. One or more perforations in the fanned tip may create a wide field of suction. Other perforations in the blade may present suction at differing elevations with respect to the surgical field. The handle may include one or more thumb/finger depressions for improved grip and maneuverability. The handle may include knurling ridges to reduce slippage. When not in use for retraction, the retractor may be clipped to another retractor where it may still suction fluids without being held.