drug release tape

Abstract

A drug release belt is provided, which is used for quantitative release of powder or granular medicine (10), the drug release belt (1) is composed of a base sheet (11) and a cover sheet (12) that are closely attached to each other, the base sheet (11) A plurality of drug bubbles (111) are formed on the drug bubble (111), and the drug (10) is sealed in the drug bubble (111) by the base sheet (11) and the cover sheet (12). The base sheet ( 11) and the cover sheet (12) are in a separate structure, and the ends of the substrate (11) and cover sheet (12) in a separate structure are wound to the slit (21) of the substrate winding wheel (20) and the cover respectively On the sheet winding wheel (30), it is characterized in that the end of the base sheet (11) is stamped with a protrusion (112) that can be snapped into the slit (21). The drug release belt provides a protrusion (112) that can be processed in a standardized manner, is easy to install, and has a firm buckle; in addition, the size and shape of the drug bubble (111) are optimized to make the drug (10) easier to be sucked out and increase the The effective use length of the drug release strip (1).

Description

technical field [0001] The invention relates to a drug blister strip for releasing powder or granule medicine, in particular to a drug release strip which can be used for inhaling powder or granule medicine for asthma. Background technique [0002] Allergic diseases such as asthma and rhinitis are often treated with inhaled drugs. For example, powder or granular drugs are placed in a drug bubble strip with a sandwich structure, and the drug bubble strip is pierced by external force, and then the drug is inhaled by inhalation. patient's mouth, nose or lungs for therapeutic purposes. [0003] The existing drug release belt is composed of a base sheet and a cover sheet which are closely attached to each other, wherein a plurality of drug bubbles are formed on the base sheet, and powder or granular medicine for treating asthma or rhinitis is sealed in the drug bubbles by the base sheet and the cover sheet. The base sheet and the cover sheet at the release end of the drug releas...

AI Technical Summary

Problems solved by technology

[0005] 1. When the substrate of the drug release belt fits with the slit on the substrate winding wheel, the end of the substrate must be folded and wound on the rotating shaft of the substrate winding wheel by means of external force or utensils to prevent the end of the substrate from slipping from the slit. The result is that the end of the substrate is easy to fall off from the slit due to the large randomness of the operation of folding and winding the end of the substrate, and the assembly process is complicated and cannot be standardized; in addition, manual or instrument winding substrate The end of the sheet is also prone to contamination

[0006] 2. In order to reduce the winding diameter of the substrate that is folded and wound on the rotating shaft, the prior art needs to cut the end of the substrate into a shape with a narrower width, which not only increases the process, but also because the end of the substrate is always wound on the rotating shaft Outside, so that the winding diameter of the base sheet can never be reduced, so the length of the drug release belt that can be installed in the limited space is limited, reducing the effective use length of the drug release belt

[0007] 3. The length of the drug bubble of the drug release belt disclosed in the prior art is about 7.5mm, and the width is about 4.00mm, but the height and other details of the drug bubble are not disclosed

The size and shape of the drug bubbles disclosed in the above-mentioned prior art are not reasonable enough, which easily leads to large airflow resistance, which not only increases the resistance of asthma patients with low lung capacity to inhale the drug powder, but also makes the drug powder residual when the drug powder is emptied due to the deep drug bubbles. The problem affects the actual treatment volume of the patient and may affect the recovery of the patient; in addition, the deeper drug bubble also leads to a larger height of the drug bubble, which reduces the number of winding turns of the drug release belt and affects the space utilization rate inside the inhaler

Images