Vibrating medicine storage unit for dry powder inhalation dosing device

A technology for a drug delivery device and a powder aerosol is applied in the field of a vibrating drug storage unit of a powder aerosol drug delivery device, and can solve the problems of convenience and harshness in the design and adjustment of mechanical structure parameters that cannot be well adapted and do not have drug type adaptability. Liquidity index parameters and other issues to achieve the effect of overcoming poor liquidity, ensuring the accuracy of sub-measurement, and increasing adaptability

CN104971412AActive Publication Date: 2015-10-14SHANGHAI CHENPON PHARMA TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-10-14

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Abstract

The invention relates to a vibrating medicine storage unit for a dry powder inhalation dosing device and belongs to the field of inhalation type dosing instruments. A turning cover, a spring, a vibration gear, a turntable and an external medicine drum arranged on a flow channel lower component form the vibrating medicine storage unit for the dry powder inhalation dosing device. While impact vibration is performed on a medicine powder storage container of the medicine storage unit, a second vibrating component, namely an internal medicine drum, which can synchronously freely vibrate, is also arranged in the medicine powder storage container, so as to perform compound vibration on medicine powder in the medicine powder storage container, so that the metering accuracy of the medicine powder dose provided by the medicine storage unit in the process of medicine dosing by the whole dry powder inhalation dosing device each time is guaranteed better, the mechanical structure design change workload needed for the variation of varieties of filling medicine powder can also be reduced, and the good adaptability of the dry powder inhalation dosing device for the powder medicine varieties in a large range is improved. The vibrating medicine storage unit can be widely suitable for the fields of design and manufacture of dry powder inhalation dosing devices of various specifications.
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Description

technical field

[0001] The invention belongs to the field of devices for injecting media into the human body, and in particular relates to an inhalation drug delivery device for sending a specified dose of powder aerosol into the patient's lungs through the oral cavity along with the breathing air. Background technique

[0002] In modern medical technology, oral or nasal inhalation can make the drug directly enter the lungs and absorb into the blood, avoiding the "first pass" effect of the liver.

[0003] Clinically, pulmonary drug delivery is mainly used to treat pulmonary diseases such as asthma, chronic obstructive pneumonia, and cystic fibrosis. Due to the thin wall of alveolar epithelial cells, large surface area, and low enzyme metabolic activity, in recent years, pulmonary drug delivery has gradually become a new way for non-invasive delivery of more drugs (such as peptides and protein drugs, etc.).

[0004] In the way of pulmonary drug delivery, powder aerosol has m...

Examples

Embodiment Construction

[0051] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0052] combine Figure 1 to Figure 4 It can be seen that the technical solution of the present invention provides a vibrating drug storage unit of a powder mist drug delivery device, the powder mist drug delivery device includes a drug powder storage container and a drug delivery The drug metering component is provided with a suction nozzle outside the casing, and a flow channel part is provided inside the casing, and the flow channel part is connected to the air inlet, the drug metering component and the suction nozzle in sequence; the invention points are:

[0053] Described housing is made of upper cover 16, middle housing 6 and lower housing 1, and a screw cap 8 is sleeved on the lower housing (see Figure 4 shown in ).

[0054] Spring 13, a vibrating gear 12 and a rotating disk 3 are arranged successively on the screw cap, and the spring sleeve i...