A self-priming nasal powder material feeding device

A powder material, self-priming technology, applied in the direction of drug devices, therapeutic insufflators, other medical devices, etc., can solve the problems of ineffective treatment, incorrect spraying methods, etc., to avoid insufficient dose , avoid wasteful effects

Active Publication Date: 2022-01-14
THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such a spraying method is not correct and cannot achieve effective treatment.

Method used

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  • A self-priming nasal powder material feeding device
  • A self-priming nasal powder material feeding device
  • A self-priming nasal powder material feeding device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0050] Although the implementation method in Example 1 can effectively reduce the problem that the drug caused by the water vapor condense caused by the exhaled gas in the delivery device, it is bonded to the inner wall, but regardless of this Summary of the invention is still some problems in existing equipment, which is the problem of drug residual and delivery efficiency. The scheme in Example 1 also does not completely solve the problem of drug or gas powder residue and give efficiency. This is because the drug delivery process, as the blow is carried out, the concentration of the inner powder in the cavity will gradually decrease, but it is necessary to repeated suction multiple times, and most of the powder can be inhaled in the patient by repeated dilution. .

[0051] There is often a powder residue in the existing equipment. It is often because the existing equipment is basically the side portion to pierce the capsule. On the other hand, even the lower piercing, the blow i...

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PUM

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Abstract

The invention discloses a self-inhalation nasal powder material delivery device, which comprises a shell, a capsule accommodation chamber, an air inlet, a nasal nozzle, a powder material release mechanism, and an annular air channel , the capsule containing cavity is arranged inside the shell, and is suspended and fixed in the middle of the shell; the outer wall of the capsule containing cavity and the inner wall of the shell form an annular air passage; the bottom of the shell is provided with the powder A material releasing mechanism, used to release the powder material in the capsule containing chamber; the air inlet is arranged at the first position of the housing, the nasal nozzle is arranged at the second position of the housing, and the nasal nozzle is arranged at the second position of the housing. An outwardly open one-way valve is arranged in the nasal nozzle.

Description

Technical field [0001] The present invention relates to a device for filling a powder material to a nasal cavity of the subject, in particular a nasal powder material delivery device. Background technique [0002] Nasal administration is an important way to treat nose-related diseases in ENT, can quickly and efficiently relieve symptoms of nasal discomfort, clinically used nasal administration include nose, nose hormones, nasal reduction of blood Wait. [0003] The surface area of ​​the human nose mucosa is 150cm 2 Not only there is many microroile hair on its mucosa epithelial cells, but similar to small intestinal fluff, it can increase the effective area of ​​the drug absorption, but also have a rich capillaries and capillary lymph tubes in the lower layer of the nasal mucosa, which can quickly absorb the drug quickly into the human body. cycle. The mucosa in the upper part of the nasal cavity is a major region of the drug absorption than the bottom of the nasal cavity and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M13/00
CPCA61M13/006A61M2205/36A61M2205/3368A61M2210/0618A61M2210/005
Inventor 李少红朱洁婷许静
Owner THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV
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