JPH029789Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an incubator for storing newborns, late-term infants, etc. in a hood and incubating them, and particularly relates to an improvement of an incubator with an air curtain.

Prior Art FIG. 1 shows a conventional incubator in which a baby 3 is placed on a mat 2 provided inside a transparent hood 1.
The hood is laid down, and air with controlled temperature, humidity, oxygen concentration, etc. is blown out from the opening provided on the head side, and this air flow is flowed into the hood 1 as shown by arrow 6, and then towards the feet. The suction is carried out through the provided opening. In addition, the hood 1 is provided with a temperature detector 16 at the top, and a door 4 that can be opened and closed to allow the baby's body 3 to be taken in and taken out.
This door 4 is provided with a pair of insertion windows 5.
This insertion window 5 is inserted into the baby body 3 housed in the hood 1.
It is provided to perform various treatments by inserting a hand from the outside. For this reason, the insertion window 5 is provided with a lid or aperture window mechanism that is normally closed and opened when inserting a hand.

In such an incubator, the inside of the hood 1 is usually sealed, and the temperature, humidity, and oxygen concentration are controlled to provide the baby 3 with an optimal environment. Normal treatment for the baby's body 3 is performed through the insertion window 5, but if the insertion window 5 is not enough or if the baby's body 3 is in a dangerous condition, the door 4 is opened and the treatment is performed. . When the door 4 is opened, outside air flows into the hood 1 and the environment inside the hood 1 is disturbed.
Therefore, if the door 4 remains open for a long time, it will have a serious effect on the baby's body 3, inducing adverse symptoms such as apnea attacks.

In order to solve this problem, a technique is disclosed, for example, in Japanese Patent Publication No. 58-47180, in which an air curtain is formed in the opened portion in conjunction with the opening of the door 4. This is done by providing an elongated opening in the floor of the hood 1 along the door 4, and when the door 4 is opened, air is blown upward from this opening to form an air curtain, and the inside of the hood 1 is It is designed to be isolated from the outside air.

Problems to be solved by the invention As mentioned above, in the conventional incubator shown in Figure 1, an air flow with controlled temperature, humidity, oxygen concentration, etc. is ejected to obtain an optimal environment. However, from the initial stage of use, that is, from the stage when the baby 3 is housed in the hood 1 and the air flow begins to be ejected,
It took a long time, about 40 to 50 minutes, to reach the set temperature, humidity, and oxygen concentration and create a stable environment. The incubator is required to place the baby 3 in an optimal environment as quickly as possible, and especially in the case of a baby 3 in poor condition, it must provide the optimal environment as quickly as possible. Furthermore, if the insertion window 5 is left open for a long time in order to perform treatment on the baby's body 3, this environment will be disturbed. Furthermore, even if an air curtain is provided, if the door 4 is left open for a particularly long time, the environment inside the hood 1 will be disturbed. Once the environment inside the hood 1 is disturbed, the insertion window 5 or door 4
Even if it is closed, it will take time for it to recover.

Means for Solving the Problems The present invention provides an incubator in which a hood for accommodating an infant is provided with a door that can be opened and closed freely, and an air curtain is formed in the opening that is opened and closed by the door. an air curtain forming means for ejecting an air flow from below to above along the inner surface of the closed door; a guide plate provided on an inner surface of the door; a pair of flange portions provided on the guide plate so as to extend along the vertical direction of the guide plate and toward the door; the door; and the guide plate. and an air flow passageway formed in a flat cylindrical shape with upper and lower ends opened by the pair of flanges, and air blown out by the air curtain forming means when the door is closed. Air flow passes through the air flow passageway from its lower opening to its upper opening.

Function: By constantly blowing out air for the air curtain, the time from the initial stage of use until the set environment is reached can be shortened. Further, after the hood door is closed, the air flow ejected by the air curtain forming means passes through the air flow passage from its lower opening to its upper opening, so that the set environment can be quickly restored. The guide plate and the pair of flanges provided on the door block the air for the air curtain and prevent it from being blown directly onto the baby's body.

Embodiment In this embodiment, as shown in FIGS. 2 to 4, a guide plate 7 is attached to the inside of the door 4 with a predetermined gap d therebetween. FIG. 2 shows the door 4 in a closed state, and FIGS. 3 and 4 show the door 4 in an open state. Further, in this embodiment, air for the air curtain is always blown out from the opening 8 regardless of whether the door 4 is opened or closed.

The guide plate 7 is connected to the door 4 as shown in FIG.
A circular window 9 is provided at a position corresponding to the insertion window 5, and flanges 10 are provided at both side edges.
This guide plate 7 is fixed or detachably provided on the door 4 via a flange portion 10 by appropriate means such as adhesion or fitting.

In the state shown in FIG. 2, an air flow indicated by an arrow 11 is ejected upward from the opening 8 from the air conditioning chamber disposed at the bottom of the hood 1. This airflow is carried out by a guide plate 7, a flange portion 10, and a door 4, which is connected to a passage 12 formed in a flat cylindrical shape with an open top and bottom.
The air flows out through the top as indicated by arrow 13 and joins the air flow indicated by arrow 6 in FIG.

From this state, the door 4 is opened by rotating in the direction shown by the arrow 14 in FIG. 4, and when the state shown in FIGS. to form an air curtain.

When the door 4 is closed from this state and the state shown in Fig. 2 is restored, the air flow shown by arrow 13 and the air flow shown by arrow 6 in Fig. 1 combine to quickly restore the original optimal environment. be done. Furthermore, even if the insertion window 5 is closed after being opened for a long time in the state shown in FIG. 2, the optimal environment can be quickly restored. In addition, a guide plate 7 and a pair of flange portions 1
0, the air blown out from the opening 8 is
It is not sprayed directly onto the baby's body 3. Also,
The time required to reach the optimal environment from the initial stage can be shortened.

FIG. 6 shows the experimental results of this example, and FIG. 7 shows the mode of the experiment.

In Figure 7, approximately
Temperature detectors are placed at five locations indicated by ~ at a height of 10cm. Note that the detection location of the temperature detector 16 (see FIGS. 1 and 3) is as follows. Figure 6 is above~
shows the temperature change detected at the detection location.

In Fig. 6, when the door 4 is opened from the set temperature of about 34°C, the temperature of ~ changes, but when the door 4 is closed after about 10 minutes, the temperature of ~ is set again after about 2.5 minutes. It can be seen that the temperature has recovered and the conventional recovery time has been improved. It has also been confirmed that it takes about 20 minutes to reach the set temperature from the initial stage.

In the embodiment described above, the guide plate 7 is provided only on the door 4, but the guide plate is provided on all or part of the inner wall of the hood 1 to form a double structure, and this guide plate and the inner wall The gap between the passages 12
It may also be configured to communicate with. By doing this, when the door 4 is closed, the air flow passes through the double structure portion of the inner wall surface of the hood 1, thereby preventing the temperature of the outside air from affecting the temperature inside the hood 1. be able to.

Effects of the invention By using the air for the air curtain when the door is closed, the time it takes for the environment to recover from the open state to the state after the door is closed, and the time it takes to reach the set environment from the initial state is reduced. This can be shortened and the setting environment can be kept stable. Furthermore, when the door is closed, air for the air curtain can be prevented from being blown directly onto the baby's body.

[Brief explanation of the drawing]

Figure 1 is a front view of a conventional incubator, Figures 2 to 5
The figures show an embodiment of the present invention. Figure 2 is a cross-sectional side view of the incubator with the door closed, Figure 3 is a front view with the door open, and Figure 4 is a side view of the incubator with the door open. FIG. 5 is an exploded perspective view of the hood portion, FIG. 6 is a graph showing the experimental results, and FIG. 7 is a schematic plan view inside the hood showing the mode of the experiment. In addition, in the symbols used in the drawings, 1... hood, 4... door, 7... guide plate, 8... air curtain air opening, 12... air flow path.

Claims (1)

[Scope of Claim for Utility Model Registration] An incubator configured such that a hood that accommodates a baby body is provided with a door that can be opened and closed freely, and an air curtain is formed in the opening that is opened and closed by the door, which is closed. an air curtain forming means for ejecting an air flow from below to above along the inner surface of the door; a guide plate provided on the guide plate; a pair of flange portions provided on the guide plate so as to extend along the vertical direction of the guide plate and toward the door; and air flow passages formed in a flat cylindrical shape with upper and lower ends opened by flange portions, and when the door is closed, the air flow ejected by the air curtain forming means is An incubator configured to pass through a flow path from its lower opening to its upper opening.