Ampule Breaking Aid Pivot Bearing Mechanism

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Solution Overview

Problem

Existing ampule breaking aids do not reliably ensure that glass ampules break at the predetermined breaking point, leading to risks of injury from sharp edges and potential contamination by glass particles, and are often dependent on the skill of the user.

Innovation Solution

An ampule breaking aid with a defined pivot bearing that ensures the head and use portions are guided to break at the predetermined point, using a joint-like mechanism with a transverse axis of rotation through the breaking point, and additional features like a pullout locking device and stable base to prevent accidents and contamination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If manual breaking of glass ampule is used, then simplicity and cost-effectiveness are maintained, but risk of injury from sharp edges and unintended breakage increases

Engineering Contradiction:
Improvesimplicity and cost-effectivenessVSAvoidrisk of injury and unintended breakage
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent introduces an ampule breaking aid as an intermediary device between the user and the glass ampule. This device includes a support body with a recess that holds the ampule, a breaking element that applies force to the predetermined breaking point, and a shield that protects the user from glass shards. The intermediary device enables safe and controlled breaking while maintaining simplicity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The ampule breaking aid is divided into functional segments: a support body for holding the ampule, a breaking element for applying force, and a shield for protection. This segmentation allows each component to perform its specific function efficiently while keeping the overall device simple and cost-effective.

Inventive Principle:
Principle #1Segmentation

2Reliability

If asymmetric ampule holder with cap and base body is used, then protection against injury is improved, but reliability of breaking at predetermined point deteriorates due to potential wrong position breaking

Engineering Contradiction:
Improveprotection against injuryVSAvoidbreaking position accuracy
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The ampule is pre-positioned in the support body with the predetermined breaking point aligned with the breaking element before the breaking action occurs. The support body includes positioning features that ensure the ampule is correctly oriented, so when the breaking element applies force, it acts exactly at the predetermined breaking point, ensuring accurate and reliable breaking.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The support body and breaking element are designed to work together in a self-aligning manner. The ampule's own geometry and the support body's recess work together to automatically position the breaking point correctly, eliminating the need for complex asymmetric positioning mechanisms while ensuring breaking occurs at the intended location.

Inventive Principle:
Principle #25Self-service

3Reliability

If ampule holder completely surrounds ampule, then protection is improved, but ability to detect glass particles deteriorates

Engineering Contradiction:
ImproveprotectionVSAvoidglass particle detection
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The shield in the ampule breaking aid provides complete protection during the breaking operation, but includes an opening or transparent section in the area where glass particle detection is needed. This local modification allows users to visually inspect for glass particles in the liquid while maintaining protection during the breaking process, addressing both safety and detection requirements.

Inventive Principle:
Principle #3Local quality

4Device complexity

If dependent on user skill is high, then device complexity is reduced, but reliability of breaking process deteriorates

Engineering Contradiction:
Improvedevice simplicityVSAvoidbreaking process reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The ampule breaking aid is designed to be self-guiding and self-positioning. The support body's recess and the breaking element's geometry work together to automatically align the breaking force with the predetermined breaking point, eliminating the need for user skill in positioning. The device performs the alignment function itself, ensuring reliable breaking while keeping the device structure simple.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The breaking element acts as an intermediary that translates the user's simple pressing action into precise, controlled force application at the predetermined breaking point. This intermediary mechanism eliminates the need for user skill while ensuring reliable breaking, as the breaking element's design guarantees accurate force application regardless of user technique.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 solution ensures safe and controlled breaking of ampules at the predetermined point, minimizing the risk of injury and contamination, while being cost-effective and ergonomic, with the use of plastic materials for added protection and vibration damping.

Implementation Method 1

with a defined pivot bearing that ensures safe guiding of the head portion and the use portion. By exactly defining the height of the glass ampule relative to the ampule breaking aid, it is therefore assured that the folding effect is always active at the same position, that is to say at the predetermined breaking point of the ampule

Methodology Applied
Scientific EffectRotation:

Implementation Method 2

The dentist or doctor also does not have the possibility to determine whether a glass particle has been lost by holding the head portion next to the use portion as the ampule holder or ampule breaking aid completely or nearly completely covers the glass ampule

Methodology Applied
Scientific EffectVibration damping: Damping

Data Source

PatentUS9731952B2Ampule breaking aid
Publication Date: 2017.08.15 IVOCLAR VIVADENT AG
  • US9731952B2 patent drawing
  • US9731952B2 patent drawing
  • US9731952B2 patent drawing

AI summary

The invention relates to an ampule breaking aid for a glass ampule having a predetermined breaking point between a head portion and a use portion, said ampule breaking aid having a base body that receives the use portion, and a cap that overlaps the head portion, wherein the cap is supported on the base body, in particular is supported in an unconnected manner and wherein the cap and the base body, especially at the front surfaces; thereof facing one another form a pivot bearing having an axis of rotation that substantially passes through the predetermined breaking point.