JPH029790Y2 - - 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, the temperature detector 16 used for temperature control
is provided at the top of the hood 1, as shown in FIG. The installation location of this temperature detector 16 is selected from the location where it is easiest to install based on the arrangement relationship with other members. However, this installation location is far away from the baby's body 3, and therefore the temperature of a portion close to the baby's body 3 cannot be detected. Ideally, the temperature detector 16 should be installed at a height of approximately 10 cm from the pine surface, but in reality it is installed at the above location.
Furthermore, since this location is close to the end of the airflow indicated by arrow 6, the temperature is 1 to 2 degrees Celsius higher than the temperature of the part near baby's body 3.
A lower value is detected. Therefore, temperature control is performed according to this low detected value, and as a result, the actually set temperature becomes higher than the target temperature.

Means for Solving the Problems The incubator of the present invention includes an air conditioning chamber for flowing a temperature-controlled air flow into the hood that accommodates the baby, and a hood provided near one end in the length direction of the hood. a first air blowing opening for forming an air curtain provided near one end in the width direction of the hood; and a second air blowing opening for forming an air curtain from the air conditioning chamber. a first air flow that is sent into the hood through the hood and returned to the air conditioning chamber via a first path in the hood; a second air flow that is sent into the hood and returned to the air conditioning chamber via a second path within the hood; a temperature detector disposed near a position where the flow and the second air flow merge, and the temperature of the second air flow at the time of the merge is maintained higher than the temperature of the first air flow. As shown in FIG. 3, each of the temperature sensors includes a guide passage formed in a cylindrical shape along the second path and guiding the second air flow toward the temperature sensor.

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 mounting members 10 are provided on both side edges.
Further, a partition plate 17 is provided along the upper side edge, and a partition plate 18 is provided near the mounting member 10 on the right side of the figure. The partition plate 18, the mounting member 10 on the right side, the guide plate 7, and the door 4 form an air flow guide passage 12 in a flat cylindrical shape. The guide plate 7 is fixed to the door 4 via a mounting member 10 by suitable means such as adhesion or fitting, or is detachably provided. In addition, the partition plate 18
may be omitted and may be provided if necessary.

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 passes through the guide passage 12 from the top at arrow 13.
It is derived as shown in and reaches the temperature sensor 16. The airflow that has passed through the guide passage 12 indicated by the arrow 13 and reached the temperature sensor 16 is directed to the opening 8
Since it is guided through the cylindrical guide passage 12 at a relatively high temperature, the temperature is relatively high. On the other hand, the temperature detector 16 is reached by a low-temperature air flow indicated by the arrow 6 in FIG. As a result, the temperature detector 16 detects a temperature intermediate between the temperature of the high temperature air flow and the temperature of the low temperature air flow. This intermediate temperature has a value closest to the temperature of the portion near the baby's body 3. Therefore, since the temperature inside the hood 1 is controlled according to the intermediate temperature, the temperature inside the hood 1 can be controlled to the target value.

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.

Effects of the invention Even when the temperature detector is installed at a far distance from the baby's body, the temperature approximately equal to that of the part close to the baby's body is detected, so temperature control can be performed to substantially match the target value.

[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 a cross-sectional side view of the state and an exploded perspective view of the hood portion. In addition, in the symbols used in the drawings, 1... hood, 4... door, 7... guide plate, 8... air curtain air opening, 12... air flow guide passage.

Claims (1)

[Claims for Utility Model Registration] An air conditioning chamber for flowing a temperature-controlled air flow into a hood that accommodates a baby; and a first air jet provided near one longitudinal end of the hood. an opening; a second air blowing opening for forming an air curtain provided near one end in the width direction of the hood; and air flowing into the hood from the air conditioning chamber through the first air blowing opening. and a first air flow that is returned to the air conditioning chamber via a first path within the hood; a second air flow that is returned to the air conditioning chamber via a second path; a temperature detector disposed near a position where the air flows merge; An incubator comprising: a guide passageway formed in a cylindrical shape along the second path and guiding the second air flow toward the temperature sensor.