WO2017035839A1

WO2017035839A1 - Method for manufacturing laryngeal mask and laryngeal mask

Info

Publication number: WO2017035839A1
Application number: PCT/CN2015/088988
Authority: WO
Inventors: 黄俊荣
Original assignee: 黄俊荣
Priority date: 2015-09-06
Filing date: 2015-09-06
Publication date: 2017-03-09
Also published as: CN107427658A; CN107427658B

Abstract

Disclosed are a method for manufacturing a laryngeal mask and the laryngeal mask, comprising the following manufacturing steps: manufacturing an integral mould (200) used for manufacturing an airbag, wherein a step (202) is arranged on the inner side of the mould (200); putting the mould (200) into a PVC slurry; taking out the mould (200) and putting the mould into a heating box, and heating the mould for forming; taking out a formed airbag (20) and fixing an air-guiding pipe (10) to one surface of the step (202); making an opening on the other surface of the step and taking out the mould; and closing the opening. The airbag is manufactured by means of the integral mould and has no joint line on the external surface thereof, thus solving the problems of discomfort for patients and damage to the throat caused by an airbag with joint lines manufactured by means of a blow moulding method in the prior art.

Description

Laryngeal mask manufacturing method and laryngeal mask

Technical field

The present invention relates to a method of making a laryngeal mask and a laryngeal mask.

Background technique

The function of the laryngeal mask is to maintain the breathing of unconscious patients such as patients with drenched body, and to establish a respiratory passage for patients. It is a component of the clinical operation of important clinical treatment measures such as critically ill patients, surgical anesthesia and cardiopulmonary resuscitation. The laryngeal mask generally includes a membrane-type air bag, an air tube, and an inflation tube. The air bag is located at one end of the air tube, and the air tube is connected to the air bag. However, the existing airbag is made by blow molding, and the outer surface of the airbag thus produced has a mold clamping line, which not only makes the patient feel uncomfortable in use, but also damages the patient's throat wall. Therefore, according to the clinically more scientific and humanized treatment needs, it is imperative to improve and innovate the existing laryngeal mask.

Summary of the invention

It is an object of the present invention to provide a laryngeal mask manufacturing method and a laryngeal mask having no mold line on the outer surface of the airbag.

In order to solve the above problems, the present invention provides the following technical solutions.

The invention provides a method for manufacturing a laryngeal mask, comprising the steps of: manufacturing an integral mold for forming an airbag, having a step on the inner side of the mold; placing the mold into the PVC slurry; taking out the mold and heating it in a heating box Forming; taking out the formed airbag and fixing the air guiding tube to one surface of the step; opening and removing the mold on the other surface of the step; and closing the opening.

The present invention also provides another method for manufacturing a laryngeal mask, comprising the steps of: manufacturing an integral mold for forming an airbag, having a step on the inner side of the mold; preheating the mold; and placing the preheated mold into the PVC slurry Removing the mold and placing it in a heating box for heating; taking out the formed airbag and fixing the air guiding tube to one surface of the step; opening and removing the mold on the other surface of the step; and closing the opening.

Among them, the mold is fixed to one surface of the step by glue.

Among them, the opening is closed by glue.

Among them, the temperature in the heating box is the temperature at which the PVC matures.

The present invention also provides a laryngeal mask made by the above-described laryngeal mask manufacturing method.

In the method for manufacturing a laryngeal mask of the present invention, the outer surface of the airbag made by using the integral mold has no mold clamping line, which solves the discomfort and the patient's discomfort caused by the mold clamping line formed by the blow molding method in the prior art. The problem of throat damage.

DRAWINGS

1 is a schematic flow chart of a method for manufacturing a laryngeal mask according to a first embodiment of the present invention.

[Correct according to Rule 91 09.10.2015]
2 is a schematic flow chart of a method for manufacturing a laryngeal mask according to a second embodiment of the present invention.

Figure 3 is a schematic plan view of the mold.

Figure 4 is a perspective view of the laryngeal mask.

detailed description

Referring to FIG. 1 , FIG. 3 and FIG. 4 , a method for manufacturing a laryngeal mask 100 according to a first embodiment of the present invention includes the following steps: In step 101 , an integral mold 200 for manufacturing an air bag 20 is manufactured. a step 202 is provided on the inner side; in step 102, the mold 200 is placed in the polyvinyl chloride (Polyvinylchloride, PVC) in the slurry; in step 103, the mold 200 is taken out and placed in a heating box for heating and molding; in step 104, the molded airbag 20 is taken out and the air guiding tube 10 is fixed to one surface of the step 202; In step 105, the mold 200 is opened and removed from the other surface of the step 202; and in step 106, the opening is closed.

In the present embodiment, the outer shape of the mold 200 coincides with the shape of the airbag 20. After the mold 200 is placed in the PVC slurry and then taken out, the PVC slurry remaining on the mold 200 is heated and molded to form the air bag 20.

Since the mold 200 of the present invention is an integral mold, that is, not a separate upper and lower molds, the outer surface of the airbag 20 made by such an integral mold 200 has no mold line. When the laryngeal mask 100 is inserted into the throat of the patient, the patient does not feel discomfort or damage the patient's throat, and solves the problem of the patient's discomfort and the damage to the throat caused by the clamping line on the outer surface of the air bag 20 in the prior art. .

Further, when the air guiding tube 10 is fixed to one surface of the step 202, the mold 200 is inside the airbag 20, so that the mold 200 supports the step 202 of the airbag 20, which is advantageous for fixing the air guiding tube 10 to one surface of the step 202. Moreover, when the opening is closed, the airway tube 10 supports the step 202 to facilitate closure of the opening.

In the present embodiment, the mold 200 is fixed to one surface of the step 202 by glue, and the opening is closed by glue. The step 202 is located at a substantially intermediate position inside the mold 200.

In the present embodiment, the mold 200 is hollow.

In the present embodiment, the heating box is an oven.

The thickness of the air bag 20 is related to the concentration of the PVC slurry. If the PVC slurry is thick, the thickness of the air bag 20 is relatively thick. If the PVC slurry is relatively thin, the thickness of the air bag 20 is relatively thin. That is, in the first embodiment, the thickness of the airbag 20 is controlled by the concentration of the PVC slurry.

In the present embodiment, the temperature at which the mold 200 is heated is a temperature at which the PVC matures, for example, 120 to 130 degrees. At the same time, the temperature at which the mold 200 is heated is related to the concentration of the PVC slurry and the ambient temperature.

Referring to FIG. 2 to FIG. 4, a method for manufacturing the laryngeal mask 100 according to a second embodiment of the present invention, a method for manufacturing the laryngeal mask 100 of the second embodiment is similar to the manufacturing method of the laryngeal mask 100 of the first embodiment, and Can achieve the same technical effect. The method of manufacturing the laryngeal mask 100 of the second embodiment includes the steps of: in step 301, manufacturing an integral mold 200 for forming the airbag 20, the inside of the mold 200 is provided with a step 202; and in step 302, preheating the mold 200 In step 303, the preheated mold 200 is placed in the PVC slurry; in step 304, the mold 200 is taken out and placed in a heating box for heat forming; in step 305, the formed air bag 20 is taken out and guided. The air tube 10 is fixed to one surface of the step 202; in step 306, the mold 200 is opened and taken out on the other surface of the step 202; and in step 307, the opening is closed.

In the second embodiment, the thickness of the airbag 20 is controlled by the preheating die 200 in the case where the concentration of the PVC slurry is the same. The higher the temperature at which the mold 200 is preheated, the thinner the thickness of the airbag 20. At the same time, the temperature at which the mold is preheated is lower than the temperature at which the PVC slurry matures. Further, the thickness of the air bag 20 is related to the thickness of the mold 200, the ambient temperature, and the soaking time of the mold 200 in the PVC slurry.

Referring to FIG. 4, the present invention also provides a laryngeal mask 100 made by the above method. The laryngeal mask 100 of the present invention includes an airway tube 10, an air bag 20 and an inflation tube 30. The air bag 20 is located at the end of the air guiding tube 10 and inflated. The tube 30 is in communication with the air bag 20. The outer surface of the airbag 20 manufactured by the above method of the present invention has no mold clamping line, thereby preventing discomfort to the patient due to the mold clamping line of the outer surface of the airbag 20 during use, and preventing damage to the patient's throat. .

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is the scope of protection of the present invention.

Claims

A method for manufacturing a laryngeal mask, characterized in that the method for manufacturing a laryngeal mask comprises:

Manufacturing an integral mold for forming an airbag, the inside of the mold being provided with a step;

Put the mold into the PVC slurry;

Removing the mold and placing it in a heating box for heating and molding;

Removing the molded airbag and fixing the air guiding tube to one surface of the step;

Opening the other surface of the step and taking out the mold; and

Close the opening.
A method for manufacturing a laryngeal mask, characterized in that the method for manufacturing a laryngeal mask comprises:

Manufacturing an integral mold for forming an airbag, the inside of the mold being provided with a step;

Preheating the mold;

Put the preheated mold into the PVC slurry;

Removing the mold and placing it in a heating box for heating and molding;

Removing the molded airbag and fixing the air guiding tube to one surface of the step;

Opening the other surface of the step and taking out the mold; and

Close the opening.
The laryngeal mask manufacturing method according to claim 1 or 2, wherein the mold is fixed to one surface of the step by glue.
The method of manufacturing a laryngeal mask according to any one of claims 1 to 3, wherein the opening is closed by glue.
The method of manufacturing a laryngeal mask according to any one of claims 1 to 4, wherein the temperature in the heating chamber is a temperature at which the PVC matures.
A laryngeal mask, characterized in that the laryngeal mask is produced by the laryngeal mask manufacturing method according to any one of claims 1 to 5.