Rotating Dental Mixing Capsule for Pasty Compositions
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Solution Overview
Problem
Existing mixing capsules in the dental sector are primarily designed for mixing liquid monomer with powdered components, and there is a lack of economical and user-friendly solutions for mixing pasty to kneadable or thixotropic two-component compositions, which are common in dental applications.
Innovation Solution
A mixing capsule with a rotating housing design that allows for the spatial separation and mixing of two components within the same container, enabling the mixing of various consistency types, including pasty, kneadable, and thixotropic compositions, by aligning outlet openings of separate chambers to form a common mixing chamber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If mixing capsules are designed for liquid monomer with powdered components, then mixing efficiency is improved, but they cannot handle pasty to kneadable or thixotropic compositions
Solution Approach 1:
The capsule housing is divided into two rotatable parts that can change their relative position. In the transport position, chambers are separated; in the mixing position, chambers are aligned to allow mixing. This dynamic reconfiguration enables the same capsule to handle different composition types without structural modification.
Solution Approach 2:
The capsule housing is segmented into a first part and a second part that can rotate relative to each other. This segmentation allows independent positioning of chambers containing different consistency materials, enabling versatile mixing capabilities while maintaining a relatively simple overall capsule structure.
2Stability of the object's composition
If separate chambers are used for different components, then spatial separation and transport stability is improved, but mixing requires complex alignment mechanisms
Solution Approach 1:
The rotating housing mechanism dynamically transitions the capsule from a stable separated state during transport to a mixed state during use. The rotation aligns outlet openings of separate chambers, creating a common mixing chamber without requiring complex manual alignment procedures.
Solution Approach 2:
The patent merges the functions of separate chambers into a common mixing chamber through rotational alignment of outlet openings. This merging occurs on-demand during mixing, while maintaining separation during transport, thus achieving both stability and ease of operation.
3Adaptability or versatility
If a rotating housing design is implemented, then versatility in mixing different consistencies is improved, but manufacturing complexity increases
Solution Approach 1:
The housing is segmented into two independently manufacturable parts that are subsequently assembled with a rotation mechanism. This segmentation allows each part to be manufactured using standard processes, reducing overall manufacturing complexity despite the added rotational functionality.
Data Source
Figure 1a~3b
AI summary
the invention relates to a mixing capsule (1) comprising a housing (2), characterised in that a first part of the housing (3) is mounted such that it can rotate about an axis of rotation in relation to a second part of the housing (4), wherein the axis of rotation corresponds to the longitudinal axis of the housing (4), wherein the first part of the housing (3) comprises at least one first chamber (5) for receiving a composition A, wherein the second part of the housing (4) comprises at least one second chamber (6) for receiving a composition B, wherein the at least one first chamber (5) and the at least one second chamber (6) are each initially closed, wherein, when the first part of the housing (3) is rotated relative to the second part of the housing (4) at a predefined angle, a first outlet opening (7) of the at least one first chamber (5) is aligned over a second outlet opening (8) of the at least one second chamber (6), wherein the first outlet opening (7) and/or the second outlet opening (8) is designed to transfer the composition A into thre at least one second chamber (6) and/or to transfer the composition B into the at least one first chamber (5). The invention also relates to a method for mixing at least two compositions A and B to form a composition C in a mixing capsule. The invention further relates to a use of a mixing capsule for storing, mixing and applying paste-like to kneadable dental two-component compositions.