CN201175510Y - a medical nebulizer - Google Patents

Abstract

The utility model discloses a medical sprayer, which comprises an atomizing chamber 1 and an air outlet pipe 2, wherein the atomizing chamber 1 consists of a conduit 11 and a cone 12, and the conduit 11 is connected with an external compressor and liquid medicine; the cone 12 is hollow structure, and its bottom and pipe 11 intercommunication, top are equipped with the atomising head, and 2 gas of atomising head and outlet duct communicate with each other, and its beneficial effect is: the medicine is deposited in the target organ in the maximum concentration and in the shortest time, and the damage of the side effect of the medicine to the body is reduced; (2) the medicine atomized particles are small, the percentage concentration of the medicine entering the bronchus and the alveolus is improved, and the lower respiratory tract disease can be effectively treated, the utility model relates to a medical device for treating respiratory tract disease, which is widely applied to hospitals and families.

Description

a medical nebulizer

technical field

The utility model relates to a medical appliance, in particular to a medical sprayer.

Background technique

Respiratory disease is one of the most common diseases in the world, and medical nebulizer is one of the medical devices specially designed to solve this disease.

At present, there are mainly two types of medical nebulizers on the market: ultrasonic medical nebulizer and compressed medical nebulizer. On the energy chip, it generates high-frequency mechanical vibration, converts electrical energy into mechanical energy, and through the medium water and the soft diaphragm of the medicine cup, this mechanical energy atomizes the medicine liquid in the medicine cup. The disadvantages of this technology are: (1) due to the direct and long-term contact between the transducer plate and the water medium, it is easy to generate scale, resulting in its permanent failure; (3) It is easy to produce the so-called "dry burning" phenomenon, resulting in high failure rate and short service life.

As for the compressed medical sprayer, the principle of the compressed pump is mainly adopted, such as Chinese Patent No. 99255639.2, entitled "Medical Apparatus with Suction and Spraying Functions", Fig. 1 is a structural schematic diagram of its execution of the spraying function, the pressure from the air pump is passed through The hose 6 presses the compressed air into the medicine cup 5, so that the medicine in the medicine cup 5 is pressed into the inner tube 51, and then atomized and sprayed by the atomizing nozzle 52. The weak point of this technology is: (1) patient is in completely passive position, can only carry out inspiratory action, passively accepts the injection of medicine, and the patient must carry out active exhalation at regular intervals, and this expiratory gas, There is no corresponding exhaust channel, which affects the high-efficiency work of the equipment; (2) the size of the drug atomized particles, the concentration of the drug, and the speed of spraying are difficult to guarantee, and these parameters are the main factors affecting the treatment of spray drugs .

Contents of the invention

Aiming at the defects of the prior art, the utility model proposes a new type of medical spray head, whose main technical features are:

A nebulizer for medical use, comprising an atomizing chamber 1 and an air outlet pipe 2. The atomizing chamber 1 is composed of a conduit 11 and a cone 12. The conduit 11 is connected to an external compressor and a medicinal liquid; the cone 12 is a hollow structure, and its bottom It communicates with the conduit 11, the top is provided with an atomizing head, and the atomizing head is in gas communication with the air outlet pipe 2.

In order to better achieve the spraying effect, the utility model can also add a strengthening tube 3 between the atomization chamber 1 and the air outlet pipe 2. The strengthening tube 3 is located on the upper part of the atomization chamber 1 and is a hollow tubular body. It communicates with the atomization chamber 1, and the top communicates with the gas outlet pipe 2.

The upper side of the atomization chamber 1 is also provided with an air intake pipe 4, the air intake pipe 4 is the entrance of the external air, and it is in gas communication with the intensifier tube 3, and the external air enters the intensifier tube 3 through the Venturi principle, which can strengthen the flow of the drug mist .

In order to perform the function of drug delivery to the patient and at the same time adapt to the physiological characteristics of the patient’s active exhalation, the utility model is provided with a drug delivery port 21 and an exhaust hole 22 at the air outlet pipe 2, and the drug delivery port 21 is located at the air outlet pipe 2 The port is the end of the drug injection to the patient; the exhaust hole 22 is located at the other end of the outlet pipe 2 and is in communication with the external space. When the patient actively exhales, the exhaled gas passes through the exhaust hole 22 Release to the external space to reduce the impact on the medicine mist channel; in order to avoid the influence of the exhaust hole 22 when the patient inhales, the area of the exhaust hole 22 is smaller than the area of the medicine mist delivery port 21, and it can also pass through Some other devices close the vent when spraying the spray.

From the perspective of overall aesthetics, the above-mentioned atomization chamber 1, air outlet pipe 2, reinforcing pipe 3, and air inlet pipe 4 are all assembled into a whole, and have a plastic, metal or alloy shell, while the compressor, the liquid medicine containing the medicine Out of the whole, the liquid medicine is pressed into the atomization chamber 1 by the pressure of the compressor, so as to complete the above functions.

Due to the adoption of the above-mentioned technical measures, the beneficial effects of the utility model are: (1) the drug is deposited on the target organ in the shortest time with the maximum concentration, and the damage to the body caused by the side effect of the drug is reduced; (2) the atomized particle of the drug is small, 90% are less than 5.0 μm, which ensures a high percentage concentration of drugs entering the bronchioles and alveoli, and can effectively treat lower respiratory tract diseases.

As a medical device for treating respiratory diseases, the utility model is widely used in hospitals and families.

Description of drawings

Fig. 1 schematic diagram of prior art structure;

Fig. 2 is a schematic sectional view of the utility model;

Fig. 3 is a schematic structural view of the utility model in an inhalation state, in which the flow direction of the arrow indicates the movement direction of the airflow;

Fig. 4 is a schematic structural view of the utility model in an exhalation state, in which the flow direction of the arrow indicates the movement direction of the airflow.

Detailed ways

As shown in Fig. 2, a kind of nebulizer for medical treatment comprises atomization chamber 1, air outlet pipe 2, intensifier pipe 3, air inlet pipe 4, and atomization chamber 1 is made up of conduit 11 and cone 12, conduit 11 and external compressor , liquid medicine connected; the enhancement pipe 3 is located at the upper part of the atomization chamber 1, and communicates with the outlet pipe 2 of the atomization chamber 1, the air inlet pipe 4 is located at the side upper part of the atomization chamber 1, and communicates with the enhancement pipe 3, and the air inlet pipe 4 and the outside The air is communicated; the air outlet pipe 2 is provided with a medicine feeding port 21 and an exhaust hole 22, and the medicine feeding port 21 is located at one end of the air outlet pipe 2, and this port is the drug spraying end to the patient; the air outlet pipe 22 is located at the end of the air outlet pipe. 2, and maintain communication with the external space, when the patient actively exhales, the exhaled gas is released to the external space through the exhaust hole 22, reducing the impact on the drug mist passage.

When the patient is in the state of inhalation, as shown in Figure 3, at this time, the strong pressure from the compressor injects the medicinal liquid into the conduit 11 and the cone 12, and passes through the atomizing head of the atomizing chamber 1, thereby generating The drug mist passes through the intensifying tube 3 and is sprayed out through the drug delivery port 21 with the assistance of the air intake tube 4 to reach the target organ of the patient.

When the patient is in an exhalation state, that is, as shown in FIG. 4 , the gas exhaled by the patient is released into the external space through the exhaust hole 22, thereby reducing the impact on the medicine mist passage.

As a medical nebulizer, the utility model must be equipped with related equipment to work normally, such as a compressor, a container for holding the liquid medicine, etc., and the liquid medicine is injected into the utility model through a proper connection. This manual only describes this part of the device in detail, but if the utility model is used as one of the components of the medical equipment in the whole medical device product, it is regarded as within the protection scope of the utility model.

Claims (4)

1, a kind of medical aerosol apparatus comprises aerochamber (1), escape pipe (2), it is characterized in that: described aerochamber (1) is made up of conduit (11) and cone (12), and described conduit (11) links to each other with outside compressor, medicinal liquid; Described cone (12) is a hollow structure, and its bottom and conduit (11) are communicated with, and the top is provided with atomising head; The top atomising head of described cone (12) and escape pipe (2) gas phase are logical.

2, a kind of medical aerosol apparatus according to claim 1 is characterized in that: the top of described cone (12) is logical by reinforced pipe (3) and escape pipe (2) gas phase.

3, a kind of medical aerosol apparatus according to claim 1 and 2, it is characterized in that: the upper lateral part of described aerochamber (1) is provided with air inlet pipe (4), and described air inlet pipe (4) and reinforced pipe (3) gas phase are logical.

4, a kind of medical aerosol apparatus according to claim 3 is characterized in that: described escape pipe (2) is provided with medicine to sending mouthful (21) and a steam vent (22), and described medicine is given and sent mouthful (21) to be positioned at an end of escape pipe (2); Described steam vent (22) is positioned at the other end of escape pipe (2), and keeps being communicated with space outerpace; The area of described steam vent (22) is given the area that send mouthful (21) less than described medicine.

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