Oscillating Toothbrush Head with Dual-Surface Cleaning
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Solution Overview
Problem
Existing powered toothbrushes are inadequate in effectively addressing microbial deposits on the tongue, which contribute to bad breath, as they lack a dedicated mechanism to remove bacteria and debris from the tongue's surface.
Innovation Solution
A powered toothbrush design featuring a head with moving tooth cleaning elements and a moving tissue cleanser, including a tuft block with bristles and a tissue cleanser with nubs, driven by a motor and shaft system to oscillate and engage the tongue surface, enhancing cleaning and reducing oral malodor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional toothbrush with a stationary head is used, then the structure is simple, but it cannot effectively remove microbial deposits from the tongue surface
Solution Approach 1:
The patent applies the dynamics principle by transforming the stationary brush head into a moving oscillating head. The drive assembly generates oscillating motion that causes the tooth cleaning elements and tissue cleanser to move back and forth, enabling effective removal of microbial deposits from both teeth and tongue surfaces. This dynamic movement resolves the contradiction by providing reliable cleaning effectiveness while accepting increased structural complexity through the drive mechanism.
Solution Approach 2:
The patent segments the cleaning functions by dividing the brush head into distinct components: tooth cleaning elements (bristles) on the first surface and tissue cleanser elements (nubs) on the second surface. This segmentation allows each surface to be optimized for its specific cleaning task, with the oscillating motion enabling both surfaces to effectively clean different oral surfaces, thereby improving overall cleaning reliability.
2Adaptability or versatility
If a toothbrush with both tooth cleaning elements and tissue cleanser is designed, then oral hygiene is improved, but the device complexity increases
Solution Approach 1:
The patent implements multi-functionality by integrating both tooth cleaning elements and tissue cleanser elements into a single brush head. The oscillating drive assembly enables this unified structure to perform multiple cleaning functions - cleaning teeth with the bristle surface and cleaning the tongue with the nub surface - thereby achieving versatility without requiring separate devices.
Solution Approach 2:
The patent merges two separate cleaning functions (tooth cleaning and tongue cleaning) into a single integrated brush head structure. By combining the tooth cleaning elements and tissue cleanser elements in one oscillating head, the patent reduces the need for multiple separate tools while maintaining comprehensive cleaning capability, thus improving adaptability while managing device complexity.
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
The toothbrush provides enhanced cleaning and significantly reduces bad breath and oral malodor by effectively removing microflora and debris from the tongue and other soft tissue surfaces, improving oral hygiene.
Implementation Method 1
A drive assembly configured to cause the first tuft block and the tissue cleanser to move with respect to the head
Implementation Method 2
A tissue cleanser is mounted to the head and has a plurality of tissue engaging elements extending outwardly from the second surface
Data Source
AI summary
A powered toothbrush includes a handle having a neck. A head is mounted to the neck and has a first surface and an opposed second surface. A first tuft block is mounted to the head, with the tuft block having tooth cleaning elements extending outwardly from the first surface. A tissue cleanser is mounted to the head and has a plurality of tissue engaging elements extending outwardly from the second surface. A drive assembly configured to cause the first tuft block and the tissue cleanser to move with respect to the head.