Surgical Clipper Blade Assembly With Vibrating Skin Preparation

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Solution Overview

Problem

Surgical clippers cause skin irritation and microscopic cuts during hair removal, leading to potential contamination of surgical sites due to friction and inadequate penetration of skin preparation compositions.

Innovation Solution

Incorporating a skin conditioning member with a skin preparation composition into the surgical clipper blade assembly, which vibrates against the skin during hair removal to enhance penetration and application of antiseptics, lipids, and other compounds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If surgical clippers are used for hair removal, then hair removal efficiency is improved, but skin irritation and microscopic cuts occur

Engineering Contradiction:

Improvehair removal efficiencyVSAvoidskin irritation and microscopic cuts

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent applies preliminary action by incorporating a skin conditioning member that applies skin preparation composition to the skin area before the hair removal process begins. This pre-treatment softens the skin and hair, reducing friction and preventing microscopic cuts during clipping, while still achieving efficient hair removal.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The skin conditioning member acts as an intermediary between the clipper blades and the skin. It delivers skin preparation composition that creates a protective layer, reducing direct friction between the blades and skin, thereby preventing irritation and microscopic cuts while maintaining hair removal effectiveness.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If skin preparation composition is applied manually before hair removal, then skin preparation is improved, but additional time and steps are required

Engineering Contradiction:

Improveskin preparation qualityVSAvoidadditional preparation time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent merges two separate functions into a single integrated device: the skin preparation function and the hair removal function. The skin conditioning member is incorporated directly into the clipper assembly, allowing both skin preparation and hair removal to occur simultaneously during one continuous operation, eliminating the need for separate manual application steps.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The surgical clipper assembly is designed with multi-functionality, serving both as a skin preparation device and a hair removal device. The blade assembly not only cuts hair but also delivers skin preparation composition through the skin conditioning member, making the device universal for both functions and eliminating the need for separate tools or steps.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Ease of operation

If skin preparation composition is applied with static application, then application simplicity is improved, but penetration into skin is insufficient

Engineering Contradiction:

Improveapplication simplicityVSAvoidpenetration depth of composition

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The patent employs mechanical vibration by incorporating a vibration mechanism that vibrates the skin conditioning member at high frequency during operation. This vibration enhances the penetration of skin preparation composition into the skin by disrupting the skin surface barrier and promoting deeper absorption, while the vibration is automatically generated during normal clipper operation without requiring additional manual effort.

Inventive Principle:

Principle #18Mechanical vibration

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

Reduces skin irritation and enhances the penetration of skin preparation compositions, thereby minimizing contamination risks and improving surgical site preparation.

Implementation Method 1

Reciprocating motion of the moveable blade vibrates the skin conditioning member against the skin area as the skin preparation composition is released onto the skin area

Methodology Applied

Scientific EffectVibration: Vibration

Data Source

PatentUS12454068B2Surgical clipper blade assemblies including surgical clipper blades with skin preparation composition

Publication Date: 2025.10.28 CAREFUSION 2200 INC

AI summary

A surgical clipper blade assembly includes a stationary blade and a moveable blade adjacent the stationary blade. The moveable blade is configured to reciprocate relative to the stationary blade to remove hair from a skin area. A blade housing houses the stationary blade and the moveable blade. The blade housing has a guide surface that faces the skin area during a hair removal process. A skin conditioning member in the form of a pad that extends along at least one of a skin facing surface of the stationary blade and the guide surface of the blade housing. The skin conditioning member includes a skin preparation composition. Reciprocating motion of the moveable blade vibrates the skin conditioning member against the skin area as the skin preparation composition is released onto the skin area.