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Spray device

A technology of sprays and nozzles, which is applied in the direction of nebulizers for treatment, medical devices, and other medical devices, and can solve the problems of inability to achieve deep drug administration and invasion into the nasal cavity, and is conducive to widespread application and easy to carry , easy-to-achieve effects

Active Publication Date: 2022-01-07
IMOTION SHANGHAI PROD DESIGN
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Problems solved by technology

However, existing nasal drug delivery devices either need to invade the nasal cavity, or cannot achieve true deep drug delivery

Method used

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Embodiment Construction

[0032] In order to make the purpose, features and beneficial effects of the present invention more obvious and understandable, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings. It can be understood that the specific embodiments described below are only used to explain the present invention, rather than limit the present invention. Also, descriptions of the same and similar components in different embodiments and descriptions of components, features, effects, etc. belonging to the prior art may be omitted. In addition, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0033] figure 1 It is a cross-sectional view of the spray device in the non-use state in the embodiment of the present invention; figure 2 It is a cross-sectional view of the spray device in use in the embodiment of the present in...

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Abstract

The invention provides a spray device. The spray device comprises a capsule and a base suitable for installing the capsule. The capsule comprises a nozzle, a first reagent cavity suitable for containing a reagent, a second reagent cavity communicated with the first reagent cavity and the nozzle, and a first piston assembly located in the second reagent cavity. The base comprises a connecting assembly suitable for being connected with the first piston assembly, a gas cavity communicating with the connecting assembly and a second piston assembly at least partially located in the gas cavity. The first piston assembly comprises a first gas channel. The connecting assembly comprises a second gas channel communicating with the first gas channel and the gas cavity. The second piston assembly is suitable for being pressed to compress gas in the gas cavity so that the gas can enter the first gas channel through the second gas channel. The first piston assembly is suitable for being driven by gas entering the first gas channel to move so as to push a reagent in the second reagent cavity to move, and therefore the reagent is sprayed out of the second reagent cavity along the nozzle. According to the invention, deep non-invasive administration can be realized.

Description

technical field [0001] The invention relates to the technical field of spray devices. Background technique [0002] The blood-brain barrier is a natural barrier between the systemic circulation and the central nervous system. However, it also prevents many drugs from entering the central nervous system to exert therapeutic effects while playing a barrier role. Traditional drug delivery methods, such as transcranial in situ injection and subarachnoid injection, are difficult to be widely used in clinical patients due to strong trauma and high technical requirements. [0003] A large number of clinical studies have found that the olfactory area of ​​the nasal cavity is a location where nerve cells are in direct contact with the surrounding environment, which makes it possible for drugs to avoid the blood-brain barrier and enter the brain through the nasal cavity. At present, the existing nasal cavity drug delivery technology has been widely used. However, the existing nasal ...

Claims

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Application Information

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IPC IPC(8): A61M11/02A61M31/00
CPCA61M11/02A61M31/00
Inventor 卓力郑义才
Owner IMOTION SHANGHAI PROD DESIGN
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