CN103611209A - Condensate water counterflow prevention device of respirator - Google Patents

Abstract

The invention discloses a condensate water counterflow prevention device of a respirator. The condensate water counterflow prevention device comprises a tee connecting part, a filtering part and a drying bottle, wherein the drying bottle is filled with a drying agent. The filtering part is arranged in the tee connecting part, the first port of the tee connecting part is connected with the drying bottle, and the second port and the third port of the tee connecting part are connected with an air pipe of the respirator. The filtering part is of a reverse pi shape and comprises a transverse filtering screen and two longitudinal filtering screens, wherein the two longitudinal filtering screens are perpendicularly arranged on the transverse filtering screen. The transverse filtering screen is located on the first port of the tee connecting part, the two longitudinal filtering screens are located on the second port and the third port of the tee connecting part respectively, and the filtering part is made of material with the water absorbing property. According to the condensate water counterflow prevention device, water vapor and formed condensate water in the air pipe of the respirator can be automatically adsorbed, so that the workload of medical staff is reduced, and the effect of preventing counterflow of condensate water can be guaranteed.

Description

Ventilator condensate backflow prevention device

the

technical field

The invention belongs to the technical field of medical devices, in particular to a device for preventing backflow of condensed water of a ventilator.

Background technique

Ventilators are a medical device widely used in hospitals. When the ventilator is in use, condensed water will be formed in the pipeline. This is due to the condensation of the gas exhaled by the patient during breathing in the ventilator pipeline. If the condensed water is not treated in time, it may accumulate and flow back. If the backflow condensate is inhaled by the patient, it will cause infection and even death in severe cases.

At present, the way to prevent the backflow of condensed water is to install a condensed water bottle at the lowest end of the ventilator pipeline to collect the condensed condensed water; at the same time, properly heat the ventilator pipeline to reduce the difference between the gas temperature in the pipeline and the room temperature , to reduce the amount of condensate formed. Although these measures can reduce the formation of condensed water to a certain extent, thereby reducing the possibility of condensed water backflow, the effect of preventing condensed water backflow is still limited, and the measure of heating the ventilator pipeline increases the workload of medical staff.

Contents of the invention

Aiming at the deficiencies in the prior art, the present invention provides a ventilator condensed water backflow prevention device which does not need to be operated by medical personnel and has better condensed water backflow prevention effect.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

Ventilator condensate backflow prevention device, including:

A three-way connection piece, a filter piece, and a desiccant-filled drying bottle, the filter piece is placed in the three-way connection piece, the first port of the three-way connection piece is connected to the dry bottle, and the second port and the third port are connected to the ventilator trachea; The filter is in an inverted π shape, including a horizontal filter and two vertical filters vertically arranged on the horizontal filter. The horizontal filter is located at the first port of the tee connector, and the two longitudinal filters are respectively located At the second port and the third port; the filter element is made of water-absorbent material.

The above-mentioned three-way connector is made of medical plastic, but there is no special requirement on the hardness of the non-toxic medical plastic used.

The above-mentioned filter element has strong water absorption and is distributed with filter holes, which can be specifically a sponge.

The above-mentioned desiccant is activated carbon, and the particle size of the activated carbon must not be smaller than the pore size of the filter element to prevent the activated carbon from leaking into the tee connection through the filter element.

The above-mentioned three-way connector is detachably connected to the ventilator trachea and the drying bottle, and specifically can be connected in a threaded manner.

the

Compared with prior art, the present invention has produced following beneficial effect:

1. Only by installing the device of the present invention on the trachea of the ventilator, the filter element can absorb the water vapor and condensed water in the trachea of the ventilator by itself, which is easy to operate and can significantly reduce the workload of medical staff.

2. The filter element is dried through the drying bottle, thereby ensuring the ability of the filter element to absorb water vapor and condensed water, and then ensuring the condensed water backflow prevention effect of the device of the present invention.

3. It is flexible to use, and one or more devices of the present invention can be installed on the trachea of the ventilator according to actual needs, so as to achieve a better anti-reflux effect of condensed water.

Description of drawings

Fig. 1 is a concrete structural representation of the present invention;

Fig. 2 is a schematic diagram of the specific structure of the filter element of the present invention.

In the figure, 1—tee connector, 2—filter, 2-1—horizontal filter, 2-2—longitudinal filter, 3—drying bottle, 4—trachea of ventilator.

Detailed ways

The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

The present invention comprises three-way connection piece 1, filter piece 2 and drying bottle 3, and filter piece 2 is placed in the three-way connection piece 1; The first port of three-way connection piece 1 connects drying bottle 3 bottlenecks, and its second port and The third two ports are connected to the trachea 4 of the ventilator. The filter element 2 is in an inverted π shape, and includes a horizontal filter screen 2-1 and two vertical filter screens 2-2, and the two vertical filter screens 2-2 are vertically arranged on the horizontal filter screen 2-1 by bonding. The horizontal screen 2-1 is located at the first port of the tee connector 1, and the two vertical screens 2-2 are respectively located at the second port and the third port of the tee connector 1.

The tee connector 1 is made of non-toxic medical plastic, and there is no special requirement on the hardness of the non-toxic medical plastic. The filter element is a thin, non-toxic material with strong water absorption and fine pores, such as a sponge. Desiccant is housed in the drying bottle 3, for example, activated carbon, but the particle size of the desiccant is controlled so that it cannot leak from the filter holes distributed on the filter element. The three-way connecting piece 1 is detachably connected with the ventilator trachea and the drying bottle, for example, it can be connected by threaded connection.

Working process and principle of the present invention are as follows:

When in use, the invention is installed at a suitable position according to the length of the ventilator trachea, and the ventilator trachea is detachably connected to the two ports of the three-way connecting piece that are not connected to the dry bottle. The filter element can absorb water vapor in the gas in the trachea of the ventilator without affecting the smooth flow of the ventilator's trachea. For the condensed water formed in the trachea of the ventilator, when it flows through the three-way connection, it will be quickly absorbed by the filter. Due to capillary action, the desiccant in the drying bottle will dry the filter element, thus ensuring the absorption effect of the filter element on the condensed water in the trachea. While the filter absorbs condensed water, its horizontal filter can also block the desiccant in the drying bottle, preventing the desiccant from leaking into the three-way connection of the ventilator.

According to actual needs, one or more devices of the present invention can be added to the trachea of the ventilator to achieve a better anti-backflow effect of condensed water.

Claims (5)

1. The ventilator condensed water anti-backflow device is characterized in that it includes: A three-way connection piece, a filter piece, and a desiccant-filled drying bottle, the filter piece is placed in the three-way connection piece, the first port of the three-way connection piece is connected to the dry bottle, and the second port and the third port are connected to the ventilator trachea; The filter is in an inverted π shape, including a horizontal filter and two vertical filters vertically arranged on the horizontal filter. The horizontal filter is located at the first port of the tee connector, and the two longitudinal filters are respectively located At the second port and the third port; the filter element is made of water-absorbent material. 2. The ventilator condensed water backflow prevention device according to claim 1, characterized in that: The three-way connector is made of medical plastic. 3. The ventilator condensed water anti-backflow device according to claim 1, characterized in that: The filter element is sponge. 4. The ventilator condensed water anti-backflow device according to claim 1, characterized in that: The desiccant is activated carbon. 5. The ventilator condensed water anti-backflow device according to claim 1, characterized in that: The three-way connecting piece is detachably connected with the trachea of the ventilator and the drying bottle.

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