JP2002191696A - Gas supplying device for respiration - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas supplying device for respiration allowing an operator to safely exchange a gas cylinder without misoperation and with reduced number of times of operation. SOLUTION: This gas supplying device for respiration is equipped with the gas cylinder 1 for supplying gas for respiration and a flow rate setting device 2, and supplies gas to a cannula 3 of a user. The gas cylinder 1 and the flow rate setting device 2 are stored in a casing equipped with a door, which can be opened and closed to a predetermined definite direction. When exchanging the gas cylinder, the door loaded with the gas cylinder is opened and a gas cylinder exchange connecting joint 7 is separated. Thus, the used gas cylinder 1 loaded on the opened door can be removed. After loading the gas cylinder filled with the gas on the door and closing the door, the gas cylinder exchange connecting joint 7 is connected to be used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a respiratory gas supply device for supplying respiratory gas from a respiratory gas cylinder to a patient with a respiratory disease. More specifically, the present invention relates to an oxygen gas supply device including means having a flow rate adjusting function, a depressurizing function, a respiratory synchronizing function, and the like, which are used when a patient with chronic respiratory disease or the like performs oxygen inhalation therapy.

[0002]

2. Description of the Related Art One of the most effective treatments for respiratory diseases such as emphysema and chronic bronchitis is oxygen inhalation therapy. In recent years, an oxygen-enriched air supply device or an oxygen cylinder has been used for this therapy. It has come to be used. When performing oxygen inhalation therapy in a hospital or home, an oxygen-enriched air supply device or a large-capacity fixed oxygen cylinder is used.
When a patient goes out to a hospital or the like, a portable oxygen cylinder is mainly used.

[0003] Such an oxygen cylinder must be small and lightweight because it is carried by a patient with a respiratory disease, and is filled with high-pressure oxygen gas in order to increase the oxygen capacity that can be filled. Also, in order to further extend the time that the patient can use, a so-called demand regulator that incorporates a breathing sensor and an automatic open / close valve inside, supplies oxygen only during the patient's inspiration time, and stops supply during the expiration time Means are used to save oxygen.

[0004] High-pressure oxygen gas such as 20 MPa supplied from the high-pressure oxygen cylinder is passed through a pressure reducing means and a flow setting device.
After setting the physician's prescribed flow rate to the patient, the patient is supplied with oxygen as a continuous flow or in synchrony with breathing via a demand regulator. Of course, replacement of these oxygen cylinders used at home is usually performed by the patient who is the user or his caregiver. The replacement of the oxygen cylinder container is performed by removing the flow setting device from the almost empty cylinder and then attaching the flow setting device to the filled high-pressure oxygen cylinder.

[0005]

Normally, when replacing an oxygen cylinder, the oxygen cylinder and all means having a decompression function, a flow control function, a respiratory synchronizing function, etc. are taken out of the transporting casing, and the oxygen cylinder is removed outside the casing. Remove and attach all means such as the decompression function to the cylinder filled with oxygen gas, and insert it into the transport housing. Moving the oxygen cylinder and all the means at once can be hard work for a weak patient.

[0006] The joint between the oxygen cylinder and the means is generally a screw-fixed type, which is small for the elderly, which is the majority of patients, and makes replacement of the oxygen cylinder difficult.

As described above, the replacement of the oxygen cylinder is difficult, so that the patient may perform an erroneous operation and cause an accident due to leakage of oxygen gas or the like.

[0008]

SUMMARY OF THE INVENTION An object of the present invention is to provide a respiratory gas supply apparatus having a housing and a joint in which cylinders can be exchanged more safely. Things. As a result of intensive studies on such a problem, the present inventors have found the following respiratory gas supply device.

That is, the present invention provides a cylinder filled with a respiratory gas, pressure adjusting means for adjusting a supply pressure of the respiratory gas, flow rate adjusting means for adjusting a supply flow rate of the respiratory gas, and adjusting the flow rate of the respiratory gas. A conduit means having a connection joint for supplying to the user supply means via the means is provided, and a housing is provided which accommodates the cylinder and the flow rate adjusting means and has a door portion which can be opened and closed in any fixed direction when replacing the cylinder. Breathing gas supply device, wherein the connection joint is a quick coupler connection joint, the connection joint is separated by opening the door, and has a detachable mechanism for connecting the connection joint when the door is closed. It is intended to provide a breathing gas supply device characterized by the following.

In the present invention, the flow rate adjusting means may be a flow setting device for setting a supply flow rate of the breathing gas, and the connection joint may be a joint for connecting the cylinder and the flow setting device. The apparatus or the flow rate adjusting means includes a flow rate setting device for setting a supply flow rate of the respiratory gas, a demand regulator for detecting a user's respiration and supplying the respiratory gas in synchronism with inspiration, and the connection joint includes the An object of the present invention is to provide a respiratory gas supply device, which is a joint for connecting a flow rate setting device and the demand regulator.

[0011] The present invention is also a part in which such a door part is provided with a cylinder storage part and is opened by being pulled obliquely forward, and the attaching / detaching mechanism is interlocked with the opening of the door part and the quick coupler-connection joint. The present invention provides a respiratory gas supply device characterized in that it is a mechanism for releasing the lock.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION
A gas supply device for respiratory gas, comprising: a cylinder for supplying respiratory gas, and a flow rate setting device, or a flow rate setting device and a flow rate adjusting means of a demand regulator, and a respiratory gas supply device for supplying to a user supply device such as a nasal cannula. The flow rate adjusting means is housed in a single housing having a door that can be opened and closed in any given direction.

When the cylinder is replaced, by opening the door provided with the cylinder storage portion, the connection joint for replacing the cylinder is separated, and the used cylinder mounted on the opened door can be taken out. When the cylinder filled with the respiratory gas is mounted on the door and the door is closed, the connecting joint for replacing the cylinder is connected to be usable.

As such a connection joint, a quick coupler connection joint or a bamboo shoot joint can be used, and among them, the quick coupler connection joint is preferable in terms of simplicity and reliability of disconnection.

[0015] Such a connection joint comprises a cylinder and flow rate adjusting means,
It is provided in the middle of the conduit connecting the user supply means. When the flow setting device is fixed to the cylinder or between the cylinder and the flow setting device, it is preferably provided between the demand regulator and the flow setting device. When connecting means is provided between the cylinder and the flow setting device, the male / female connection portion of the coupler is provided so as to be directly connected to the conduit on the cylinder side / flow setting device side, or to the cylinder or the flow setting device.

The quick coupler-connection joint preferably has a safety mechanism so that the connection joint is not accidentally detached due to a disturbance. The safety mechanism (lock) is released by opening the door of the housing. Then, the safety mechanism operates by closing the door.

It is preferable that the door portion of the housing is provided with a cylinder storage portion, and is provided with an attachment / detachment mechanism interlocked with the door so that the lock of the coupler connection joint is released by pulling the door diagonally forward. The cylinder storage section opens diagonally upward by pulling diagonally toward the front, and the cylinder is taken out by pulling up an empty cylinder diagonally upward, and a filled cylinder is inserted. The apparatus is provided with cylinder direction defining means for defining the direction of insertion of the cylinder and the direction of the coupler-connection joint. It is the simplest and most preferable to provide a direction defining means in the cylinder storage section or the cylinder body so as to define the cylinder storage section so as to enter only in that direction. In addition, it is also possible to provide a turntable on the bottom of the storage unit, and to provide a direction designating means for recognizing the cylinder direction and closing the door so that the connection unit faces in a predetermined direction.

The weight of the cylinder after filling is added, and the door can be easily closed. By closing the door, the cylinder and the flow setting device or the flow setting device and the demand regulator are connected by a coupler connection. You.

[0019] One or more wheels and four or less wheels may be provided to facilitate transportation of the device, or a handle may be provided so that the device can be easily pushed or pulled during transportation. This is also preferable for improving the usability of the elderly.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the respiratory gas supply device of the present invention will be described with reference to the drawings. The respiratory gas supply apparatus of the present invention is an apparatus that includes an oxygen cylinder 1 and a flow rate setting means 2 and supplies oxygen to a cannula 3 of a user, as shown in the schematic diagrams of FIGS. The oxygen cylinder 1 has a structure including a pressure adjusting means and a structure not including the pressure adjusting means.

The respiratory gas supply device is housed in one housing 4, and an arbitrary surface 5 of the housing 4 is structured to open forward. In order to replace the oxygen cylinder 1, pulling the puller 6 attached to the opening surface 5 requires much trouble, the malfunction prevention provided at the cylinder connection joint 6 connecting the oxygen cylinder 1 and the flow rate setting means 2 and the like. The mechanism is released, the cylinder and the flow rate setting means 2 are separated, and the oxygen cylinder 1 and the opening surface 5 are integrated, pulled out to the front of the housing 1, and the oxygen cylinder 1 can be taken out from above the opening.

Conversely, the oxygen cylinder 1 filled with oxygen gas is inserted from above the opening, installed inside the opening 5 and closed, so that the cylinder connecting joint 6 is connected, and at the same time the cylinder is connected. The malfunction prevention mechanism provided in the connection joint 6 functions, and can be used as a breathing gas supply device.

FIG. 3 shows the structure of the quick coupler-connection joint.
This will be described with reference to FIG. To attach the oxygen cylinder 1, by closing the housing 4, the quick coupler connection joint 7 of the oxygen cylinder 1 is pressed against the flow setting device 2 or the connection joint of the demand regulator, and at the same time, the lock claw 10 is relatively moved. It is locked and connected to the member to be connected. At the same time as the lock, the check valve release convex portion 12 is pressed against the check valve 11, the check valve 11 is opened, and the gas that has passed through the gas passage 13 on the cylinder side is supplied to the flow setting device 2 or the gas flow on the demand regulator side. The gas is supplied to the patient through passage 14.

To remove the oxygen cylinder 1, the lock release lever 15 is rotated by pulling the cylinder case opening puller 6 connected to the lock release lever 15 of the quick coupler connection portion by a link mechanism toward the front, When the lock claw 10 is expanded in the outer peripheral direction, the quick coupler connecting joint 7 is separated by the pressure of the gas remaining in the gas flow path.

[0025] These oxygen cylinder replacement operations can be easily performed even by elderly people who are handicapped. Further, a tire 7 and a grip 8 for facilitating movement are attached to the housing.

[Brief description of the drawings]

FIG. 1 is a front view and a side view of a respiratory gas supply device of the present invention during normal use.

FIG. 2 is a front view and a side view of the breathing gas supply device according to the present invention when an oxygen cylinder is replaced.

FIG. 3 is an example of an embodiment of a connection joint in the breathing gas supply device of the present invention.

FIG. 4 is an embodiment showing a mechanism of a connection joint in the respiratory gas supply device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Oxygen cylinder 2 Flow rate setting means 3 Cannula 4 Case 5 Opening surface 6 Puller 7 Connection joint with malfunction prevention function 8 Tire 9 Grip hand 10 Lock claw 11 Check valve 12 Check valve release convex part 13 Gas on cylinder side Flow path 14 Gas flow path on the flow setting device side 15 Lock release lever

Claims (4)

[Claims] 1. A cylinder filled with a breathing gas, a pressure adjusting means for reducing a pressure of the breathing gas, a flow rate adjusting means for adjusting a supply flow rate of the breathing gas, and using the breathing gas through the flow rate adjusting means. Respiratory gas supply provided with a conduit means having a connection joint for supplying to a user supply means, and having a housing for accommodating the cylinder and the flow rate adjusting means and having a door which can be opened and closed in an arbitrary fixed direction when the cylinder is replaced. A respirator, wherein the connection joint is a quick coupler connection joint, the connection joint is separated by opening the door, and the detachable mechanism is connected to the connection joint when the door is closed. For gas supply. 2. The flow rate adjusting means is a flow rate setting device for setting a supply flow rate of the breathing gas, and the connection joint connects the cylinder or a cylinder including the pressure adjusting means to a flow rate setting device. The respiratory gas supply device according to claim 1, wherein: 3. A flow setting device for setting a supply flow rate of a respiratory gas, a demand regulator for detecting a user's respiration and supplying a respiratory gas in synchronism with inspiration. 2. The respiratory gas supply device according to claim 1, wherein the device connects the flow rate setting device and the demand regulator. 4. The door part has a cylinder storage part and is a part that is opened by being pulled obliquely forward, and the attaching / detaching mechanism locks the quick coupler-connection joint in conjunction with opening of the door part. 2. A mechanism for canceling the operation.
4. The respiratory gas supply device according to any one of claims 1 to 3.