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Sterile status indicator by means of phase change

A technology of status indication and phase change materials, applied in the direction of indirect heat exchangers, heat exchanger types, test sterilization degree, etc., can solve problems such as expensive, large construction volume, complex structure of separate movable parts, etc.

Active Publication Date: 2015-12-16
AESCULAP AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these systems have the disadvantage of requiring very complex structures requiring many individually movable parts
In addition, these systems require considerable construction volume, which reduces the usable volume of the vessel
This creates considerable manufacturing costs
Components made from shape memory metals are also expensive

Method used

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  • Sterile status indicator by means of phase change
  • Sterile status indicator by means of phase change
  • Sterile status indicator by means of phase change

Examples

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Embodiment Construction

[0030] figure 1 A sterility indicating device for a sterilized container (not shown) is shown, said sterility indicating device comprising a liquid-tight case 10 carrying a phase change material 20 . Cassette 10 is formed by two shell-like parts 11 and 12; here, part 11 forms the rear wall 11 of cassette 10, at which rear wall the cassette is fixed to the groove of the sterilization container, and part 12 A front wall 12 facing the user is formed. The front wall 12 is made of transparent plastic, while the rear wall 11 is made of opaque plastic. The front of the rear wall 11 is provided with the letters "STERILE", for example like bold letters on a light green background. If the phase change material 20 is a liquid, the letters "STERILE" are easily recognizable to the user. Between the rear wall 11 and the front wall 12 there is provided a circular metal foil 15 which is bent in the relaxed state and thus constitutes a so-called clicker-type device. The rear wall 11 , the ...

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Abstract

The invention relates to the use of a phase change material (20) for producing a sterile status indicator for a sterilisation container, and to a sterile status indicator for a sterilisation container comprising a fluid-tight container (10) that contains a phase change material (20). The container wall (11, 12) of the container (10) has at least one transparent region (12) and an activator (15), which can be activated to release activation energy and / or crystal nuclei. The activator (15) is in contact with the phase change material (20). The invention further relates to a sterilisation container comprising a container tray and a container lid, having a sterile status indicator, wherein the sterile status indicator is provided either on the container tray or on the container lid and in the sealed state of the sterilisation container the activator (15) is in indirect or direct connection with the other one of container tray and container lid.

Description

technical field [0001] The present invention relates to the use of a phase change material for the production of a sterility indicating device for a sterilized container and to a sterilized container comprising a sterility indicating device based on said principle. Background technique [0002] Numerous forms of sterility indicating devices or sterility indicators for sterilization containers are known in the prior art. These indicators are used to signal to personnel whether a sterilization container has been sterilized. The sterility indicator responds to heat and / or steam and changes color during the sterilization process. After the sterilization process, personnel can determine that the contents of the container are sterile based on the color of the indicator dot. Indicator dots are attached to marking cardboard or container closures. However, if the indicator point is placed on a marking cardboard, there is a risk that this marking cardboard is not removed and replac...

Claims

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Application Information

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IPC IPC(8): A61L2/28F24V30/00
CPCG01N31/226F28D20/028F28D2021/005F24V30/00A61L2/28Y02E60/14
Inventor 科尔温·莫茨格罗尔德·齐里斯乔基姆·亚曼
Owner AESCULAP AG
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