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Blister strip coil forming

A technology of strips and vesicles, which is applied in the field of inhalation devices and coiled strips, can solve the problems of complex process, strip blocking, device failure, etc.

Inactive Publication Date: 2011-02-23
VECTURA DELIVERY DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] It will be appreciated that, in the absence of any external force, due to the natural tendency of conventional coils to spring apart, or at least the tendency of relatively tightly wound coils to expand, the removal of the finished coil from the winding device and the removal of the finished coil from the suction device The process of placing the coil into the device during manufacturing and assembly is more complicated because the finished coil must remain in its tightly coiled state during this transfer step
It has also been found that a coil that expands due to its natural elasticity to fill the space within the housing it occupies presents other coil control problems as it uncoils during use which can lead to jamming of the strip or other means Fault

Method used

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  • Blister strip coil forming
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Examples

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Embodiment Construction

[0052] Although a particular type of inhalation device has been mentioned above, it will be appreciated that the invention is applicable to any inhalation device incorporating a coiled strip of wound blisters, each blister containing a dose of inhalable medicament.

[0053] As mentioned above, due to the natural elasticity or spring force of the material forming the strip, the coil of blister that has been wound on the mandrel or spool will unwind, uncoil without any external force applied to it by the shell or some other restraint. and / or radial expansion.

[0054] According to the invention, the strip of blisters is treated by the device so that it naturally forms a coil, rather than coiling up against elastic forces or tension in the material that tend to keep it open or uncoiled. If the coil is given a natural curvature, it has little or no residual tension and therefore no tendency to self-expand or uncoil. In fact, it has been found that when the strip is given a natura...

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PUM

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Abstract

A method of coiling a strip of blisters for insertion into an inhalation device is disclosed. The method includes the steps of taking a preformed strip of blisters in which each blister contains a dose of medicament for inhalation by a user, manipulating the strip to impart a continuous curvature or a series of discrete creases to the strip; that allow the strip to form into a coiled shape. A strip which has been coiled according to the method is also disclosed, as is an inhalation device incorporating means for coiling a strip of blisters according to the invention.

Description

field of invention [0001] The present invention relates to a method of coiling a strip having a plurality of blisters each containing a dose of medicament for inhalation by a user of an inhalation device, wherein the strip is loaded after coiling. The invention also relates to a device for coiling such a strip, as well as an inhalation device incorporating a coiled strip according to the method of the invention and / or using the device of the invention. [0002] The invention also relates to an inhalation device incorporating means for coiling therein a used portion of a blister strip according to the method of the invention. Background technique [0003] Oral or nasal delivery of drugs using inhalation devices is a very attractive method of drug delivery because of the relative ease with which these devices are used discreetly by the patient or in public. In addition to delivering drugs to treat localized diseases of the airways and other breathing problems, they have more ...

Claims

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Application Information

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IPC IPC(8): A61M15/00
CPCA61M2015/0051A61M15/0045A61M2202/064A61M2015/0041A61M15/0041A61M15/0051
Inventor 格雷厄姆·吉宾斯彼得·伊万斯马修·萨卡
Owner VECTURA DELIVERY DEVICES