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Respiratory nasal filter

A breathing filter and filter technology, applied in breathing filters, breathing protection containers, inhalers, etc., can solve the problems of increased airflow resistance and increased retention of dust particles.

Inactive Publication Date: 2003-04-09
PROHALE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to achieve the purpose of increasing the possibility of dust particles being trapped, the airflow channel in the filter is made narrow and curved, which creates significant resistance to the airflow passing through the filter (although this resistance is very low resistance when using a filter with an insert)
Additionally, as airflow is increasingly impeded during filter operation, resistance to airflow movement increases

Method used

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  • Respiratory nasal filter
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Examples

Experimental program
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Embodiment Construction

[0040] Detailed description of the preferred embodiment

[0041] The filter claimed here ( figure 1 with figure 2 ) Contains a truncated cone-shaped body 1. The air inlet 3 (used as a passage for inhaling air) is made in the large bottom 2 of the cone of the main body 1 (the outside of the large bottom of the cone is convex). The axial direction of each channel 3 is composed of two parts, the tangential direction and the axial direction, to provide a suction air channel with a suitable direction. The cone top (small bottom) 4 of the main body 1 includes an air outlet 5 around which a collar 6 is arranged. The collar and the inner surface of the main body 1 together form an inner annular cavity 7. The sealing ring 8 is located on the outer surface of the main body 1 (near the bottom 2 of the cone), and the protrusion 9 is made on the inner surface of the main body 1. In cross section, the protrusion has the shape of the convex portion of the aerodynamic wing. The geometric size o...

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PUM

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Abstract

The device claimed refers to means for human respiration organ protection against dust-like particles - in particular, against allergen-carrying particles. It may be used as a nasal filter, as a filter in respirators, and so forth. The device comprises a hollow body having one or several inlet channels and one outlet orifice that are intended for the passage of inhaled air, with the inner surface of said body having such a shape that is close to the shape of a truncated cone, and said inlet channels are made in the major base of the cone with the direction of the axis of each of the channels being combined out of the tangential component and axial component, while the outlet orifice is made in the vertex (minor base) of the cone, and the inner body surface is covered with a sticky substance capable of retaining dust and allergen particles contained in the inhaled air.

Description

Technical field [0001] The invention applied here relates to a protective device for the human respiratory system. The device described in the invention can effectively purify the inhaled air by removing dust particles (especially particles carrying allergens) in the inhaled air. Produce any significant resistance to inhalation and exhalation. The device described in the present invention can be used as a nose filter in equipment such as respirators. Background technique [0002] A well-known breathing filter [disclosed in WO86 / 04249] is manufactured in the form of two nasal pouches, which contain a filter element filled with deodorant or medicament. The nasal pouch should be inserted into the nostril. Since the sucked air flows through the filter element, the air can be purified. [0003] Another well-known breathing filter-"inner nasal filter" [disclosed in US Pat. No. 5,117,820] has a long cylindrical shape and is made of artificial porous material. After radial compression, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62B23/06
CPCA62B23/06
Inventor V·阿尔佩洛维奇V·佩里M·格尔斯曼S·利特文
Owner PROHALE
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