Surgical Helmet Assembly With Brow Vents and External Lighting

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Surgical helmet assemblies face challenges in providing improved ventilation and visibility without compromising functionality, particularly in managing temperature and humidity while minimizing contamination and exposure to bodily fluids.

Innovation Solution

The design incorporates a helmet enclosure with a fan, a transparent face shield, and a surgical garment, featuring a brow bar with vents to direct airflow and integrated lighting, allowing for enhanced ventilation and visibility while maintaining functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If light sources are incorporated into the surgical helmet assembly to enable enhanced visibility, then visibility is improved, but temperature within the helmet increases causing discomfort to the user

Engineering Contradiction:
ImprovevisibilityVSAvoidtemperature within helmet
Core Design Contradiction:
Illumination intensityVSTemperature

Solution Approach 1:

The patent extracts the light source from the helmet enclosure and positions it externally, allowing visibility enhancement without the heat-generating component being trapped inside the enclosed space. This separation resolves the contradiction by maintaining illumination benefits while eliminating the thermal burden on the user.

Inventive Principle:
Principle #2Taking out (Extraction)

2Object-affected harmful factors

If the helmet enclosure is designed to encircle the head and shoulders for protection, then protective functionality is improved, but ventilation becomes compromised leading to temperature and humidity management issues

Engineering Contradiction:
Improveprotection from bodily fluids and pathogensVSAvoidtemperature management
Core Design Contradiction:
Object-affected harmful factorsVSTemperature

Solution Approach 1:

The patent incorporates porous or permeable materials into the helmet enclosure structure, allowing airflow and vapor transmission while maintaining the protective barrier function. This enables simultaneous achievement of protection and thermal/humidity management through controlled permeability.

Inventive Principle:
Principle #31Porous materials

3Object-affected harmful factors

If the helmet enclosure is made fully enclosed for maximum protection, then protection from contamination is improved, but ventilation controls become critical and user comfort deteriorates

Engineering Contradiction:
Improvecontamination protectionVSAvoiduser comfort
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent applies local quality by creating zones of different permeability and ventilation characteristics within the helmet enclosure. Critical protection zones maintain full enclosure while comfort zones incorporate ventilation openings or breathable materials, allowing simultaneous achievement of protection and comfort through spatial differentiation.

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

This configuration improves user comfort by providing effective airflow and visibility while maintaining the protective functionality of the surgical helmet assembly.

Implementation Method 1

a fan that can be retained in the helmet enclosure... brow bar portion can have vents disposed therein to direct airflow pushed through the helmet enclosure from the fan onto the user

Methodology Applied
Scientific EffectForced Convection: Forced Convection

Data Source

PatentUS11284655B2Surgical helmet
Publication Date: 2022.03.29 ZIMMER INC
  • US11284655B2 patent drawing
  • US11284655B2 patent drawing
  • US11284655B2 patent drawing

AI summary

Implementations described herein include surgical helmet assemblies that have a helmet enclosure shaped to encircle a head of a user. The helmet enclosure retains a fan and includes a brow bar portion at a front of the helmet enclosure that is shaped to extend along a brow or a forehead of the user and having a light positioned therein. The helmet enclosure also includes a stabilizer extending downward from the helmet enclosure in front of the ears of a user, a face shield that is transparent and coupleable to at least the brow bar portion, a headband shaped to extend across an occiput region of the user's head, and a surgical garment for covering at least the head and shoulders of a user in use. The brow bar portion includes vents disposed therein to direct airflow pushed through the helmet enclosure from the fan onto the user. The face shield is coupleable to the helmet enclosure by one or more of a hook and loop fastener on the helmet enclosure or the stabilizer and a post protruding from the brow bar portion.