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Methods and apparatus for inspecting the sealing and integrity of blister packages

A technology of blister packaging and vesicles, applied in the direction of optical testing flaws/defects, etc., can solve problems such as lack of speed, speed cannot provide 100% online inspection, etc., and achieve the effect of accurate defect position information

Inactive Publication Date: 2007-07-11
SEPHA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This device can provide very accurate discrimination, but no speed
In fact, all these technical solutions are suitable for off-line inspection, but cannot provide 100% in-line inspection due to speed issues

Method used

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  • Methods and apparatus for inspecting the sealing and integrity of blister packages
  • Methods and apparatus for inspecting the sealing and integrity of blister packages
  • Methods and apparatus for inspecting the sealing and integrity of blister packages

Examples

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Embodiment Construction

[0086] A typical cold-formed blister pack 4 includes a tray 5 or lower layer, usually composed of a plastic layer 32 and aluminum foil 34 with a thickness of 10 μm-45 μm, and has vesicles for containing drugs such as oral tablets, medical devices such as needle holders, and other products that cannot be exposed to the ambient atmosphere during storage prior to use. The blister pack 4 also includes a cover foil 30 adhered to the surface of the tray 5 for sealing the tablets in the blister. The thickness of the cover foil 30 may be between 10 μm and 150 μm.

[0087] In order to improve the sealing of the cover foil 30 on the plastic layer 32, the blister pack 4 is usually passed through the nip of heated embossing rolls, or is pressed in a pair of embossing plates, on the tray 5 and attached to it. The cover foil 30 is embossed with cross pattern, cross pattern, concave or convex pattern. This results in a textured surface at least on the flat side of the finished blister pack...

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PUM

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Abstract

A method for detecting an imperfection in a blister package having at least one radiation-transmissible layer (32), optionally moving, the blister package having a flat side and a pocket side, the method comprising the steps of directing radiation (18, 18') at the flat side and / or the pocket side of the blister package and detecting any radiation (22) emitted from at least one edge of the blister package.

Description

technical field [0001] The present invention relates to methods and apparatus for inspecting the seal and integrity of blister packs, and more particularly to methods and apparatus for detecting defects such as holes, leaks, weak and broken seals in pharmaceutical blister packs. Background technique [0002] Blister packs of pharmaceuticals come in several different structural forms. There are three main categories: namely thermoformed packages, cold formed packages and occasional tropicalised packages. The most common are thermoforming and cold forming, which have two sides, one with a flat top side and the other with a series of vesicles, often called the vesicle side. Specifically, the vesicle side includes a base layer or tray, usually formed from a transparent or translucent sheet plastic material, and for cold-formed packaging an additional layer of aluminum foil, with multiple depressions on the tray to form the vesicle, Used to receive individually packaged items, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/95
Inventor A·E·派克N·斯图亚特M·E·M·斯托克
Owner SEPHA