JPH0928806A - Artificial breathing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an artificial breathing device by which timing of respiration can be seized easily as well as plural patients can be treated at the same time without touching their mouths directly. SOLUTION: This artificial breathing device is provided with a mask 1 by which mouth and nose of a patient is covered, an air supplying means 6 connected with this mask through an air supplying hose 3, a filter 4 which is provided on the air supplying hose 3, a respration changing-over means 5 by which air is supplied to the patients periodically via the mask by means of the air supplying means and also expired gas from the patient is released to outside, and a timing sound generating means 8 for generating a sound on the timing of respiration of the patient synchronously with the respiration changing-over means 5.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a ventilator.

[0002]

2. Description of the Related Art Artificial respiration is performed in order to resuscitate a patient who has stopped breathing during emergency treatment or the like. As the artificial respiration method, the most effective expiratory breathing method is usually used.
This breath exhalation method is a method in which a rescuer blows air from the mouth directly into the patient's mouth to blow air into the lungs.

Further, when performing this artificial respiration, the rescuer assists the patient's breathing by pressing the diaphragm in accordance with the patient's exhalation (expiration).

[0004]

However, in the above expiratory breathing method, one rescuer has to perform artificial respiration on a single patient, and when a plurality of patients stop breathing at the same time. I can't save. Also,
Since the work is performed by directly contacting the mouth, it may be difficult or unclean if there is an injury around the mouth.
In addition, rescuers are secondarily infected if the patient has the pathogen.

Further, in the work of pushing the diaphragm according to the condition of the patient, it is difficult to control the timing of inspiration and expiration of the patient, which requires skill.

The present invention has been made in view of the drawbacks of the above-mentioned breath-inhalation type artificial respiration, and
An object of the present invention is to provide an artificial respiration device capable of coping with a plurality of patients at the same time and easily grasping the timing of expiration and inspiration of the patients.

[0007]

In order to achieve the above object, according to the present invention, a mask for covering the mouth and nose of a patient, an air supply means connected to the mask through an air supply hose, and the air supply. Air is periodically sent to the patient through the mask by the filter provided on the hose or in the mask and the air supply means, and the patient is synchronized with the respiratory switching means and the respiratory switching means for letting the exhaled air of the patient escape to the outside. And a timing sound generating means for generating a sound at the timing of exhalation.

A preferred embodiment is characterized in that it comprises means for compressing the diaphragm in time with the patient's expiration.

[0009]

A mask connected to an insufflation pump covers the mouth and nose of the patient, and a patient-adjusted amount of air is delivered as inspiration to the patient through the mask at a cycle adjusted to the patient's condition. The exhaled breath of the patient is released to the outside through the breath switching means. By setting the device on multiple patients,
One person can deal with multiple respiratory arrest patients. The timing sound generating means emits a sound according to the respiratory cycle of the patient. If the patient's diaphragm is pressed according to this sound, anyone can easily press the diaphragm in synchronization with the patient's breathing. By providing the filter, the air sent to the patient is purified and the pathogenic bacteria etc. of the patient are prevented from scattering to the outside.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of an artificial respirator according to an embodiment of the present invention. The mask 1 is put on the mouth and nose of a patient to be resuscitated by artificial respiration. This mask 1
Is securely attached to the patient's head, for example by means of a length-adjustable band 2, for airtightly covering the patient's mouth and nose. This mask 1 has an air supply hose 3
Is connected to the air supply pump 6 via. Air supply hose 3
A filter 4 and a breath switching device 5 are provided above. The breathing switching device 5 and the air supply pump 6 are driven and controlled by the control device 7. A timing sound generator 8 and a diaphragm compression device 9 are further connected to the control device 7. A battery 10 is connected to the control device 7 and supplies power to the air supply pump 6 and each device as needed.

When using the artificial respiration device having the above structure,
First, the mask 1 is set on the patient, the power is turned on, and the air supply pump 6 is driven. The control device 7 controls ON / OFF of the air supply pump or switching control of the breath switching device 5 (described later).
Thus, a predetermined amount of air is supplied to the patient from the mask 1 after purification through the filter 4 at a constant cycle. As a result, the patient automatically repeats inspiration and expiration in a fixed cycle by the respiratory switching device 5, the inspiration is sent to the patient, and the expiration of the patient is discharged to the outside. At this time, a sound is generated at the timing of the patient's expiration. In response to this sound, the rescuer can press the patient's diaphragm to assist in breathing. Alternatively, as shown, a device may be provided that compresses the patient's diaphragm in synchronization with this sound. As such a diaphragm compressing device, for example, a life jacket type airbag is worn on a patient, and the air in the life jacket of the patient's abdomen is increased to a high pressure at the timing of exhalation of the patient so as to compress the diaphragm. it can. A foot-operated or manual pump may be used instead of the electric pump that requires a power source. Even when a manual pump is used, it is desirable that the sound be generated in accordance with the timing of exhalation and inspiration.

FIG. 2 is an explanatory view of the configuration of an example of the breath switching device. This example is a three-way valve type having three ports 11, 12, and 13 communicating with the patient side, the pump side, and the outside, and by rotating the switching valve body 14, the patient side port 11 is changed to the pump side port 12. Or, it communicates with an external port. When the air is blown into the patient, the ports 11 and 12 are communicated with each other as shown in the figure (A), and when the patient exhales, the port 1 is connected with the port 1 as shown in the figure (B).
Connect 1 and 13 to each other. The control device 7 can switch the valve body 14 at an appropriate cycle.

FIG. 3 is an explanatory view of another structure and operation of the respiratory switching device. In this example, the outer case 20 is provided with an external port 21, a pump side port 22 and a patient side port 23, and these ports 21, 22 and 23 are switched by sliding the inner case 24 to switch the patient side port 23. It is intended to communicate with the pump side port 22 or the external port 21. (A) shows a state in which air is sent from the pump to the patient, and shows a state in which the inner case 24 is pushed down by the pump pressure. FIG. 3B shows a state in which the patient's breath is discharged to the outside, and the inner case 24 is pushed up by the spring 25 and the pump side port 22 is closed. In this way, the spring drive eliminates the need for a power supply.

[0014]

As described above, in the present invention, the air supply pump is connected to the mask covering the mouth and nose of the patient via the breath switching device, and the breath switching device supplies air in accordance with the breath of the patient. Since the sound is generated intermittently and in synchronization with the patient's exhalation, automatic artificial respiration without human intervention is possible. In addition, by pushing the diaphragm of the patient in accordance with the sound that matches the timing of breathing, it is possible to reliably assist breathing at a certain rhythm in an emergency, and the reliability of resuscitation work is enhanced. By interposing the filter, the air sent to the patient is purified, and the pathogenic bacteria and the like possessed by the patient are prevented from scattering outside together with the breath of the patient. Further, unlike the conventional artificial respiration which is carried out by direct mouth movement through an ambulance or the like, when the patient has a pathogenic bacterium, the infection from the patient disappears and the secondary infection is prevented. In addition, by setting the device for a plurality of patients, one worker can resuscitate a plurality of patients who have stopped breathing.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an artificial respiration device according to an embodiment of the present invention.

FIG. 2 is a configuration and operation explanatory view of an example of a breath switching device of the present invention.

FIG. 3 is a configuration and operation explanatory view of another example of the breath switching device of the present invention.

[Explanation of symbols]

1: Mask, 2: Band, 3: Hose, 4; Filter, 5: Respiratory switching device, 6: Air supply pump, 7: Control device, 8: Timing sound generation device, 9: Diaphragm compression device,
10: Battery.

Claims (2)

[Claims] 1. A mask for covering the mouth and nose of a patient, an air supply means connected to the mask via an air supply hose, a filter provided on the air supply hose or in the mask, and the air supply means. While periodically sending air to the patient through the mask by the breathing switching means for escaping the patient's exhalation to the outside, and a timing sound generating means for generating a sound at the timing of the patient's exhalation in synchronization with the respiratory switching means, An artificial respiration device comprising: 2. The artificial respiration device according to claim 1, further comprising means for compressing the diaphragm at the timing of exhalation of the patient.