JP3979812B2 - Concentrated oxygen supply device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a concentrated oxygen supply apparatus including a humidifier for supplying moderate humidity to oxygen-enriched air (or oxygen) having low humidity.
[0002]
[Prior art]
Conventionally, for example, oxygen therapy for supplying oxygen to respiratory disease patients is known. In this oxygen therapy, breathing gas generated from oxygen generating means such as an oxygen cylinder or a concentrated oxygen supply device is supplied into the patient's nasal cavity using oxygen inhaling means such as a nasal cannula.
[0003]
Since the breathing gas supplied from this type of oxygen generating means contains almost no water, supplying this breathing gas directly to the patient will dry out the patient's nasal cavity to prevent this. A device (humidifier) having a humidifying function is connected to the oxygen generating means so that the breathing gas contains moisture.
[0004]
This type of concentrated oxygen supply apparatus includes a main body and a separate humidifier connected to the main body. FIG. 6 is an explanatory plan view showing a connecting portion between a main body of a conventional concentrated oxygen supply device and a humidifier.
[0005]
In FIG. 6, a generating unit 63 that generates oxygen-enriched air with low humidity is disposed in the main body inside 61 </ b> A of the concentrated oxygen supply device 61, and the main body 64 is discharged to discharge the generated oxygen-enriched air. A shaft 65, an intake shaft 66 that takes in the humidified oxygen-enriched air, and an oxygen supply port 67 that communicates with the intake shaft 66 and can be connected to a cannula (not shown) are provided.
[0006]
The humidifier 62 is a bottle-shaped storage container that stores humidified water, and is removed from and attached to the main body 61A for replenishment or cleaning of the humidified water. On the side surface of the humidifier 62, there are provided a discharge shaft connection portion 68 and an intake shaft connection portion 69 that are externally connected to the discharge shaft 65 and the intake shaft 66. The intake shaft coupling portion (which may be a discharge shaft coupling portion) 69 includes a joint holding mechanism (not shown) for coupling the humidifier 62 to the main body 61A, and a release mechanism (not shown) for removing the humidifier from the main body 61A. )). This joining and holding mechanism locks a hook provided on the intake shaft connecting portion 69 in a recess provided on the intake shaft 66, and a release mechanism is an opening knob protruding from the intake shaft connecting portion 69. By pressing 70, the hook is released and the holding state of the humidifier 62 is released (released).
[0007]
[Problems to be solved by the invention]
By the way, when the concentrated oxygen supply device 61 is used for a long time regardless of day and night, the humidifier 62 is frequently attached and detached because of replenishment of humidified water or the like. Furthermore, since it is expected that handling of patients such as elderly people will increase in the future, considering the physical strength of the patient, unfamiliarity with handling, etc., it is desired to improve the operability of attaching and detaching the humidifier 62.
[0008]
In view of the above-described conventional problems, an object of the present invention is to provide a concentrated oxygen supply device that allows a patient to handle a humidifier easily and reliably.
[0009]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the invention of claim 1 is characterized in that a main body for generating oxygen-enriched air is built in a main body, and an oxygen-enriched gas discharged from the generation section by a humidifier detachably attached to the main body. In the concentrated oxygen supply device that humidifies the conditioned air and returns it to the main body again, and then discharges it outside the main body again, a box-shaped concave portion is formed on the front surface of the main body, and this concave portion serves as a housing portion for the humidifier. In addition, a discharge shaft that discharges oxygen-enriched air from the generation unit and a take-in shaft that takes in oxygen-enriched air that has been humidified by the humidifier are protruded from the inner wall of the storage unit, the humidifier and a sending unit that is inserted into the intake shaft provided in the housing portion and the connecting portion of the discharge shaft is inserted, the connection holding mechanism of the connecting portion is located in the recess discharge shaft The outer peripheral groove provided in and outside this The hook has an elastic force to be locked in the groove. The hook has a ring shape whose inner diameter is larger than the outer shape of the central portion of the discharge shaft, and projecting pieces are formed on the upper and lower sides of the ring portion. The release mechanism that releases the holding mechanism includes an release knob that presses the protruding piece provided on the hook to separate the outer peripheral groove from the elastic hook, and an upper end of the connection portion that presses the upper end of the release knob. The ring-shaped hook is bent through the opening knob and the protrusion of the hook by the downward movement of the lever, and the hook is released from the outer peripheral groove. It is characterized by doing so.
[0010]
The invention described in claim 2 is the concentrated oxygen supply apparatus according to claim 1, wherein the lever also serves as a handle for carrying the humidifier.
[0012]
According to a third aspect of the present invention, in the concentrated oxygen supply device according to the first or second aspect, the connecting portion is provided with a guide portion for guiding insertion of the discharge shaft.
[0013]
According to a fourth aspect of the present invention, in the concentrated oxygen supply device according to the first to third aspects, when a spring body is interposed between the connection portion and the discharge shaft, and the connection holding mechanism is released, The spring body pushes out the humidifier from the main body.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a concentrated oxygen supply apparatus according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the humidifier provided in the concentrated oxygen supply apparatus of FIG. 1, and FIG. A sectional view, FIG. 4 is sectional drawing at the time of the main body removal of a humidifier, and FIG. 5 is BB sectional drawing of FIG.
[0017]
In FIG. 1, a concentrated oxygen supply apparatus 1 according to the present invention is installed in a living room of a general household, for example. A main body 2 having a size that can be easily carried, and a humidifier 3 that is detachably attached to the main body 2. And have.
[0018]
A slit-like air inlet 4, an operation unit 5 in which switches for operating the apparatus 1 are arranged, and a storage unit 6 for the humidifier 3 are formed on the front surface of the main body 2.
[0019]
An air filter is attached to the inside of the air inlet 4, and a generator 7 for generating oxygen-enriched air with low humidity is disposed further inside (inside the main body) of the air filter. The generation unit 7 includes, for example, an adsorption tower 8 for enclosing an adsorbent such as zeolite and adsorbing nitrogen in the air, an air compressor 9 for pumping air to the adsorption tower 8, and the like. . The generation unit may be an oxygen supply unit that supplies high-concentration oxygen such as an oxygen cylinder or liquid oxygen.
[0020]
The operation unit 5 is provided with an operation switch 12 for operating and stopping the apparatus 1, a flow rate adjusting knob 13 for adjusting the flow rate of oxygen supplied by a valve and the like, and a nasal cannula (via a connecting tube). An oxygen supply port 14 that can be connected to a not-shown projection is provided.
[0021]
The storage unit 6 of the humidifier 3 is a box-shaped recess in which the humidifier 3 can be stored, and a door 15 pivotably attached to the entrance of the recess is provided. A discharge shaft 16 that discharges the oxygen-enriched air generated by the generator 7 and a take-in shaft 17 that takes in the oxygen-enriched air humidified by the humidifier 3 penetrate the rear plate of the storage unit 6 vertically. It arrange | positions and it protrudes ahead and is provided. The discharge shaft 16 has a cylindrical shape and has an air passage formed therein. The outer diameter of the discharge shaft 16 is small at the tip and tapered toward the center, and the base end is increased by one step. An outer peripheral groove 18 is formed on the outer periphery of the central portion. The intake shaft 17 has a cylindrical shape with a ventilation path formed therein, and a packing 21 provided inside. The main body 2 is connected to a pipe and communicates with the oxygen supply port 14.
[0022]
The humidifier 3 is composed of a container part 22 and a lid part 23. The container part 22, as shown in FIG. 2, contains humidified water 45 and opens upward, and is humidified on the side surface of the container part 22. It has a delivery part 24 for delivering oxygen-enriched air, and this delivery part 24 is inserted into and connected to an intake shaft 17 provided in the storage part 6.
[0023]
The lid portion 23 includes a base portion 25 that hermetically seals the upper opening of the container portion 22, and a connecting portion 26 that is formed by curving 90 degrees laterally from above the base portion 25, and is connected to the base portion 25. The part 26 is covered with an outer case 27. A vent hole 28 is formed in the base portion 25 and the connecting portion 26 to communicate them. One end portion of the vent hole 28 is opened and the other end portion is connected to the introduction pipe 43 (the introduction pipe 43 includes A porous filter 44 is attached to the other end portion and is immersed in the humidified water 45 in the container portion 22). The discharge shaft 16 is inserted into the connecting portion 26, and the guide portion 31 that guides the discharge shaft 16 and the spring pressing portion that presses the spring body 30 inserted into the discharge shaft 16 in order from the tip. 32 (the other end portion of the spring body 30 is held by the proximal end portion of the discharge shaft 16), a connection holding mechanism for locking the connection portion 26 and the discharge shaft 16, and a release mechanism for releasing the connection holding. Is provided.
[0024]
The connection holding mechanism includes an outer peripheral groove 18 provided on the discharge shaft 16 and a hook 35 that is engaged with the outer peripheral groove 18. The hook 35 is made of an elastic material, and has a ring shape whose inner diameter is larger than that of the central portion of the discharge shaft 16 as shown in FIG. Projection pieces 36a and 36b are integrally formed on the top and bottom of the ring portion, the lower projection piece 36b abuts on the inside of the lower part of the exterior case 27 of the connecting portion 26, and the upper projection piece 36a penetrates the upper part of the exterior case 27 and extends upward. It protrudes and an opening knob 37 is formed on its end face.
[0025]
When the spring body 30 is inserted into the discharge shaft 16 and the discharge shaft 16 is inserted into the guide portion 31, the lower inner side of the ring portion is locked to the outer circumferential groove 18 as shown in FIG. 5. Thereby, the connection between the discharge shaft 16 and the humidifier 3 is maintained.
[0026]
The release mechanism includes the release knob 37 and a lever 38 provided above the release knob 37. The lever 38 is pivotally attached to a fixed shaft 39 protruding from the upper portion of the connecting portion 26 and extends forward (in a state where the humidifier 3 is installed in the storage portion 6). A pressing portion 41 is formed at a position corresponding to the release knob 37 of the lever 38, and the lever 38 pivots up and down about the fixed shaft 39. Therefore, when the lever 38 is moved downward, the pressing portion 41 of the release knob 37 is moved. As shown in FIG. 5, the ring portion of the hook 35 and the upper and lower protrusions 36 a and 36 b are bent and the outer periphery of the discharge shaft 16 enters the inner periphery of the hook 35. Then, the hook 35 is detached from the outer peripheral groove 18.
[0027]
In the humidifier 3 configured as described above, when the humidifier 3 is installed in the storage portion 6, the spring body 30 is inserted into the discharge shaft 16, and then the opening of the connecting portion 26 faces the discharge shaft 16. By moving horizontally, the discharge shaft 16 is inserted into the vent hole 28 of the connecting portion 26, the hook 35 is locked to the outer peripheral groove 18 of the discharge shaft 16, and the connecting portion 26 of the humidifier 3 and the discharge shaft 16 are connected. Connected. At this time, the delivery part 24 of the humidifier 3 is also inserted into the intake shaft 17 and connected.
[0028]
When the humidifier 3 is attached to the main body 2 and the concentrated oxygen supply device 1 is operated, the oxygen-enriched air discharged from the generating unit 7 flows into the introduction pipe 43 through the discharge shaft 16 and enters the water through the porous filter 44. Released into bubbles. The bubbles are humidified while rising in the water, and the humidified oxygen-enriched air is supplied to the oxygen supply port 14 via the delivery unit 24 and the intake shaft 17. Then, oxygen that is appropriately humidified is supplied into the nasal cavity of the patient through a cannula connected to the oxygen supply port 14.
[0029]
When the humidifier 3 is removed from the storage portion 6, the hook 35 is released from the outer circumferential groove 18 by moving the lever 38 downward and pressing the release knob 37, and the connection holding is released. When the connection holding is released, the spring body 30 inserted into the discharge shaft 16 and placed between the base end portion of the discharge shaft 16 and the spring holding portion 32 pushes out the spring holding portion 32 and the humidifier 3 is the main body. It is possible to push out to the opposite side of 2 and reliably disconnect. At this time, the delivery part 24 of the humidifier 3 is also pushed out and detached from the intake shaft 17. Since the connection of the humidifier 3 is released, the user can move the humidifier 3 horizontally from the humidifier 3 housing 6 and take it out.
[0030]
As described above, the concentrated oxygen supply device 1 of the present invention includes the humidifier 3 connected to the main body 2 and the storage portion 6 that stores the humidifier 3, and the discharge shaft 16 provided in the storage portion 6 and By pushing the connecting portion 26 and the delivery portion 24 provided in the humidifier 3 together with the take-in shaft 17, the connecting and holding mechanism works and can be easily attached.
[0031]
Further, when the humidifier 3 is removed, the lever 38 that presses the release knob 37 to release the connection and hold can be operated with a weak force, and the lever 38 can be operated at the front position. The connection holding mechanism can be easily and reliably released.
[0032]
Moreover, since the lever 38 is provided in the upper part of the humidifier 3, it can also be used as a handle for carrying.
[0033]
As mentioned above, although this invention was demonstrated based on one Embodiment, this invention is not limited to this.
[0034]
【The invention's effect】
As described above, the concentrated oxygen supply device of the present invention has a main body that generates oxygen-enriched air in the main body, and the oxygen-enriched gas discharged from the generating section with a humidifier that is detachable from the main body. In the concentrated oxygen supply device that humidifies the conditioned air and returns it to the main body again, and then discharges it outside the main body again, a box-shaped concave portion is formed on the front surface of the main body, and this concave portion serves as a housing portion for the humidifier. In addition, a discharge shaft that discharges oxygen-enriched air from the generation unit and a take-in shaft that takes in oxygen-enriched air that has been humidified by the humidifier are protruded from the inner wall of the storage unit, the humidifier and a sending unit that is inserted into the intake shaft provided in the housing portion and the connecting portion of the discharge shaft is inserted, the connection holding mechanism of the connecting portion is located in the recess discharge shaft The outer peripheral groove provided on the The hook has an elastic force to be engaged with the outer peripheral groove, and the hook has a ring shape whose inner diameter is larger than the outer shape of the central portion of the discharge shaft, and projecting pieces are respectively formed above and below the ring portion. The release mechanism for releasing the connection holding mechanism includes an opening knob that presses the protruding piece provided on the hook to separate the outer peripheral groove from the hook having elasticity, and an upper end of the opening knob to press the connection knob. It is composed of a lever pivoted on a fixed shaft projecting at the top, and the downward movement of this lever causes the ring-shaped hook to bend through the opening knob and the hook protrusion, and the hook is released from the outer circumferential groove. Since it is made to come off, the connection and maintenance of the humidifier are pushed in by pushing in the connecting part and the sending part provided at the position corresponding to the discharge shaft and the intake shaft provided in the storage part. Mechanism can be easily attached it worked.
[0035]
In addition, this connection / holding release mechanism can be operated easily because a lever is provided, and the release knob on the far side for removal can be operated at a near position with a weak force.
[0036]
Since the humidifier can be attached and detached easily and reliably, the humidifying water can be easily replenished and the humidifier can be easily cleaned, and the work of a patient with weak physical strength or a user unfamiliar with handling can be reduced.
[Brief description of the drawings]
FIG. 1 is a front view of a concentrated oxygen supply device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the humidifier according to the embodiment of the present invention when the main body is attached.
3 is a cross-sectional view taken along the line AA in FIG.
FIG. 4 is a cross-sectional view of the humidifier when the body is removed.
5 is a cross-sectional view taken along the line BB in FIG.
FIG. 6 is an explanatory plan view showing the connection of a conventional humidifier with a concentrated oxygen supply body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Concentrated oxygen supply apparatus 3 Humidifier 6 Storage part 16 Discharge shaft 17 Intake shaft 18 Outer peripheral groove 24 Outlet part 26 Connection part 31 Guide part 35 Hook 37 Release knob 38 Lever

Claims (4)

A generator that generates oxygen-enriched air is built in the main body, and the oxygen-enriched air discharged from the generator is humidified and returned to the main body with a humidifier that can be attached to and detached from the main body. In the concentrated oxygen supply apparatus, the box-shaped recess is formed on the front surface of the main body, and this recess serves as a storage portion for the humidifier. The back wall of the storage portion has an oxygen from the generator. A discharge shaft for discharging the enriched air and a take-in shaft for taking in the oxygen-enriched air humidified by the humidifier, while the connecting portion into which the discharge shaft is inserted and the humidifier and a sending unit that is inserted into the intake shaft provided in the housing portion, connection holding mechanism of the connecting portion is for engaging to the peripheral groove and the outer circumferential groove provided on the discharge shaft located in the recess elastic It consists of a hook with power Is, the hook inner diameter wherein a larger ring-shaped than the central portion the outer shape of the discharge shaft and this is above and below the ring portion each projecting piece is formed, the release mechanism for releasing the connection holding mechanism, the elastic force An opening knob that presses the protruding piece provided on the hook to separate the outer circumferential groove from the hook, and a lever that is pivotally attached to a fixed shaft that presses the upper end of the opening knob and protrudes above the connecting portion. and consists, via the projecting pieces of the open knob and hook the downward movement of the lever is bent the ring-shaped hook, concentrated oxygen supply apparatus characterized by the hook to disengage from the circumferential groove. The concentrated oxygen supply device according to claim 1, wherein the lever also serves as a handle for carrying the humidifier. The connection portion concentrated oxygen supply device according to any one of claims 1-2, characterized in that a guide portion for guiding the insertion of the discharge shaft to. Wherein between the connecting portion and the discharge shaft spring member is interposed, the time of connection holding mechanism is released, claim 1-3 in which the spring member is characterized by extruding the humidifier from the body The concentrated oxygen supply device according to 1.

Images