Deployable Bouffant Cap for Surgical Headwear

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Solution Overview

Problem

Traditional surgeon's caps do not cover the ears or nape of the neck, requiring additional PPE like bouffant caps, which can trap heat, cause discomfort, and leave marks, while lacking support for headlamps and causing shoulder pain from repetitive tying.

Innovation Solution

A head cover combining a surgical cap portion with a deployable bouffant cap portion that is secured to the rear of the side panel, allowing for secure hair containment without covering the entire head, minimizing heat retention, and providing structure for headlamps, with adjustable fastening means for a snug fit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a bouffant cap is worn to cover ears and nape of the neck, then hair coverage is improved, but heat trapping and discomfort increase

Engineering Contradiction:
Improvehair coverageVSAvoidheat trapping
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The head cover is divided into two functional segments: a surgical cap portion covering the top and front of the head, and a deployable bouffant cap portion that can be extended to cover the ears and nape of the neck when needed. This segmentation allows the user to expose or cover specific areas as required, preventing unnecessary heat trapping while maintaining hair coverage when needed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bouffant cap portion is designed to be deployable and adjustable, allowing it to be extended or retracted based on the situation. This dynamic design enables the head cover to adapt to different requirements - providing full coverage when needed while minimizing heat trapping when the deployable portion is retracted.

Inventive Principle:
Principle #15Dynamics

2Reliability

If a full bouffant cap is worn to cover all hair, then hair containment is improved, but support for headlamps and equipment is lost

Engineering Contradiction:
Improvehair containmentVSAvoidstructural support
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The head cover combines a surgical cap portion with structural integrity to support headlamps and equipment, with a separate deployable bouffant cap portion for hair containment. The surgical cap portion maintains the necessary structural support, while the deployable bouffant portion provides hair containment only when extended.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention merges the structural support function of a surgical cap with the hair containment function of a bouffant cap into a single integrated head cover. The surgical cap portion provides the structural framework for supporting equipment, while the deployable bouffant portion adds hair containment capability when needed.

Inventive Principle:
Principle #5Merging (Combining)

3Stability of the object's composition

If a surgeon's cap with ties is worn to secure fit, then stability is improved, but shoulder pain from repetitive tying increases

Engineering Contradiction:
Improvefit stabilityVSAvoidrepetitive tying
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The invention replaces the mechanical tying system with an elastic band that uses elastic deformation to secure the head cover. The elastic band automatically adjusts to head size and maintains continuous pressure without requiring manual tying operations, eliminating repetitive shoulder strain while maintaining fit stability.

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

4Stability of the object's composition

If a bouffant cap with elastic band is worn to secure fit, then fit stability is improved, but red marks and indentations on forehead increase

Engineering Contradiction:
Improvefit stabilityVSAvoidforehead marks
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The head cover places the elastic band at the rear of the head, segmented from the forehead area. This positioning ensures that the securing force is applied to the back of the head where it does not cause visible marks, while the forehead area remains free from elastic pressure.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3664653B1Combination surgical cap and deployable bouffant cap
Publication Date: 2021.10.13 O&M HALYARD INC
  • EP3664653B1 patent drawingFigure 1
  • EP3664653B1 patent drawingFigure 2
  • EP3664653B1 patent drawingFigure 3

AI summary

A head cover that can be worn by health care professionals is provided. The head cover (100) includes a surgical cap portion (102) and a bouffant cap portion (104). The surgical cap portion includes a top surface (114) and a side panel (116) secured to the top surface via a seam (106). Further, the bouffant cap portion is secured to a rear portion of the side panel where the bouffant cap portion is maintained against the rear portion of the side panel in an undeployed state and is deployable from the rear portion of the side panel to contain a wearer's hair.