JPS61293473A - Connection and water supply system of humidifier and reservior - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a liquid supply system for a humidifier of an inhaler.

(Prior art) The humidifier used in the inhaler is a public humidifier, and in its liquid supply system, heated sterile liquid is introduced into the humidifier, while air is supplied from the ventilation pipe to the heated sterile liquid. The air is heated and humidified by contacting it with a sterile liquid. This heated and humidified air is inhaled by the patient.

(Problems to be Solved by the Invention) In the case of a humidifier as described above, since the air is humidified using liquid, it is necessary to periodically replenish the liquid inside the humidifier. In the past, the common practice was to remove the humidifier and inject replenishment liquid into the humidifier. but,
This method is tedious and involves the risk of contaminating the liquid as it is handled.

Alternatively, you can use one of the holes in the humidifier lid.
゛There is a way to inject water. Additionally, as an alternative method, special equipment can be used to supply water from a hanging flexible solution bag. Some companies manufacture disposable sets that include a T-shaped adapter that fits over the cascade outlet.

A patient port is connected to the vertical leg of this T-shaped adapter, and a solution bag is connected to the other leg by valved vinyl tubing. If necessary, water is supplied to the blade row via the T-shaped adapter by opening the tube clamp. Although this water supply method is simplified, since it is operated by hand, the operating status must be constantly checked.

There are also types of humidifiers that have a hole for inserting a water supply system. A system manufactured by one company has a structure in which a glass bottle is suspended from which water is supplied through a large diameter tube to a valve assembly housed within the bottle. When the water reaches a predetermined level, the valve assembly automatically closes. Although this system allows continuous water supply as needed, the entire system must be cleaned and sterilized before reuse.

The main objective of the invention is to provide a water supply system that connects a humidifier to a reservoir.

SUMMARY OF THE INVENTION A supply system according to the invention includes a first elongate conduit means for supplying water from a reservoir to a humidifier, and a first elongate conduit parallel to the first elongate conduit means for introducing a rush of air from the humidifier into the reservoir. The second
conduit means and means for connecting the upstream ends of the first and second conduit means in fluid communication with the reservoir. The system is configured such that the downstream ends of the first and second conduit means are located within the humidifier and the downstream end of the first conduit means is located adjacent to the downstream end of the second conduit means.
Means are provided for connecting the conduit means to the humidifier. The system includes an elbow connected to first and second conduit means, the first hollow portion of the elbow being connected to the first and second conduit means.
surrounding the conduit means and spaced from the giant conduit means, a second hollow section in fluid communication with the first hollow section and extending obliquely to the longitudinal axes of the first and second conduit means; are doing. The downstream ends of the first and t42 conduit means extend through the elbow and into the humidifier interior.

A feature of the present invention is that the outer diameter of the first conduit means is significantly smaller than the outer diameter of the second conduit means, to such an extent that supply of humidified air to the patient through the elbow is not inhibited. 1st
The diameter of the conduit means is made as small as possible, and the diameter of the second conduit means is made as large as possible.

Another feature of the invention is that the downstream end of the second conduit means is formed at an angle to the longitudinal axis of the second conduit means to eliminate surface tension during use of the system; This is done by making it possible to drain the water from the bottom of the device.

Another feature of the invention is that at least a portion of the downstream end of the second conduit means is positioned below the downstream end of the first conduit means to speed up initial filling of the humidifier.

Other features of the invention other than those described above will become apparent from the following detailed description of embodiments and from the claims.

(Example) Referring to FIGS. 1 to 3, a vent pipe 12 of a known type is shown.
, a humidifier 14 of known type, and a reservoir 1 for holding sterile water.
6 and the entire humidification system comprising a water supply system 18 according to the invention is indicated at 10.

, as shown in the figure, the humidifier 14 has sterile water Wf in the lower part.
A holding ball 20 and a lid 22 removably attached to the top of the ball 20 by suitable means such as screws 24 are provided, and the ball 20 and lid 22 allow the chamber 2 to be closed.
5 is formed. The humidifier 14 also includes a heater 26 of a known type that heats the sterile water W within the humidifier 14 . The humidifier 14 also includes an elongated tubular portion 300 Å port 28, the lower portion of which is located below the surface of the sterile water W, and is provided with holes 32 in the lower portion to allow gas to pass through. It is possible to do so. Humidifier 14
further includes an annular flange 34 extending from one side of the tubular portion 300 toward a central portion of the ball 20, with an upper wall or scattering plate 36 above the annular flange 34;
It is located laterally to the tubular portion 30 and includes a plurality of relatively small diameter holes 38 for purposes described below. As illustrated, the scattering plate 36 is located below the surface of the sterilized water W. The humidifier 14 further comprises, on the lid 22, a tubular portion 40 forming an outlet 42.

The system 10 includes a corrugated tube 44 connected to an outlet 464 of the ventilation tube 12 to the inlet 28 of the humidifier 14.

(Function) In use, the ventilator 12 supplies a fixed amount of gas, such as an oxygen mixture, in cycles whose pressure and volume are adjusted to simulate the patient's normal breathing mechanism.

This gas is supplied to the sterile water W via the corrugated pipe 14 and the tubular section 30 and further to the intermediate position of the annular flang 34 through the hole 32 . Next, the gas passes through the small diameter holes 38 of the dispersion plate 36, passes through the sterilized water, and is sent to a position above the water surface of the sterilized water W. The scattering plate 36 functions to promote mixing of gas and sterilized water and to eliminate large bubbles in the gas flow. The gas is humidified by the sterile water W while flowing through the sterile water W and the distribution plate 36 . Furthermore, the heater 26 heats the sterile water W, and the heated sterile water heats the gas passing through the sterile water W. The heated and humidified gas flows along the surface of the sterile water W. An outlet 42 to the patient is also provided, as described in more detail below.

The reservoir 16 is suspended above the humidifier 14 by suitable means, such as a hook 48 fitted within an upper ring 50 of the reservoir 16.

This reservoir 1G is connected to the humidifier 1 as explained below.
4. A chamber 54 for holding sterile water or liquid supplied with water.
It is provided with an outer wall 52 that forms a. Referring to FIGS. 4 and 6, the reservoir 16 includes a pair of lower holes 56 and 58 and a downwardly extending protrusion 60 adjacent the lower holes 56,58.

3 and 6, the delivery system 18 of the present invention includes a first water conduit means 62 having an upstream end 64 connected to the reservoir 16 and a downstream end 66 fitted into the humidifier 14. . This supply system 18 also includes an upstream end 70
and a second gas conduit means 68 connected to the reservoir 16 and having a downstream end 72 fitted into the humidifier 14. The supply system 18 is arranged such that a first hollow cylindrical portion 76 extends around and is spaced apart from the first and second conduit means 62.68; Second
During! A tubular portion 78 communicates with the first tubular portion 76 and includes an elbow 74 extending generally perpendicular to the longitudinal axes of the first and second conduit means 62,68. This elbow 74 has first and second hollow knuckles 8 pointing upward.
0.82 and third and fourth hollow nipples 84.86 pointing downward, the first hollow nipple 80 being the third hollow nipple 84.86.
The hollow nipple 84 and the second hollow nipple 82 communicate with the fourth hollow nipple 86, respectively. As shown, the hollow nipples 80, 82, 84, 86 are located above the first and second hollow cylindrical portions 76 and 78 of the elbow 74.

The first water conduit means 62 includes a tubular upstream portion having a downstream end 90 fitted into a first nitrided nuzzle 80 . This tubular upstream section 88 valves the bore 58 and connects the tubular section 88 to the IJ.
-17- spikes 92 (with an upstream end reaching the server 16) that are in fluid communication with the server 16;
An outwardly extending flange 94 is provided adjacent the spike 92.

The second gas conduit means 68 includes a tubular upstream portion 96 having a downstream end 98 connected to the second hollow nipple 82 . This tubular upstream portion 96 is provided with a hollow spike lOO connecting the second gas conduit means 68 to the reservoir 16 via the hole 56. Tubular upstream portion 96 includes an outwardly extending flange 102 adjacent spike 100 that prevents spike 100 from entering reservoir 16 .

As shown in FIG. 3, a first growth 106 of the first conduit means 62 having an upstream end 108 fitted into a third hollow nipple, and a second conduit having an upstream end 112 fitted into a fourth hollow nipple. The downstream ends of the first and second conduit means 62.68 are defined by an integrally extruded double lumen tubular portion 104 comprising a second tube 110 of the means 68. When using the system 10, the first hollow portion 7 of the elbow 74
6 is attached to the tubular portion 40 of the humidifier 14; in this embodiment, the tubular portion 104 enters the ball 20 of the humidifier 14 through the first hollow portion 76 of the elbow 74, generally below the elbow 74. It is elongated in the position cylinder.

As shown in FIG. 3, the outer diameter of the first tube 106 is preferably smaller than the outer diameter of the second tube 110, and for purposes described below, the inner diameter of the first tube 106 is as small as possible. , second
The inner diameter of tube 110 is intended to be as small as possible. In a preferred embodiment, the first tube 106 has an inner diameter of about 0.5 mm.
0.080 inch, the inner diameter of the second tube is approximately 0.260 inch, and the inner diameter of the first hollow portion 76 of the king lubo 74 is approximately 0.080 inch.
It is approximately 0.730 inches, which is greater than the outer diameter of tubular section 104 which is 470 inches. Furthermore, the second conduit means 6
The downstream end 72 of 8 is formed at an angle of less than QO6, preferably about 45°, to the longitudinal axis of the second conduit means 68 for purposes described below. First conduit means 6
The downstream end of the first conduit means 62 is substantially perpendicular to the longitudinal axis of the first conduit means 62 . As will be known, the beveled portion of the downstream end 72 of the second conduit means 68 is positioned such that its lowermost end is adjacent the downstream end 66 of the first conduit means 62';
Preferably, the downstream end 66 of the first conduit means 62 is located intermediate the lowermost and uppermost ends of the beveled portion of the second conduit means 68.

1! With reference to FIGS. III to 3, the system 10
To further explain the zero action, a corrugated tube 114 is connected to the second hollow portion 78 of the elbow 74 and extends to the patient. The first hollow portion 76 of the elbow 74 is connected to the humidifier 14
If connected to the tubular portion 40 of the tube, the heated and humidified gas will flow through the outlet 42, the first hollow portion 76 of the elbow 74, and the second hollow portion 76 of the elbow 74! Through section 78 and corrugated tube 114, it can be delivered to the patient and administer the desired therapy.

4 and 5, humidification system 10 includes a clip 116 that retains first conduit means 62 and second conduit means 68 to reservoir 16. Referring to FIGS. One end of this clip 116 connects the outwardly extending 7 flange 94 and the 1
Adjacent to 02 is a first barbed portion 118 engaged with first and second conduit means 62,68. The other end of this clip 116 is connected to a downwardly extending protrusion 60 of the reservoir 16.
a second hook-shaped portion 120 extending partially around the periphery of the second hook-shaped portion 120; The clip 116 includes a central portion 122 that connects to the first barbed portion 118 and the second barbed portion 120 . First, the first hooked portion 1''8 is connected to the first conduit means 62.
and the second conduit means 68 , and the second barbed portion 120 can then be secured around the downwardly extending protrusion 60 of the reservoir 16 . In this way, clip 1
16 is a first conduit means 62 for purposes described below.
and a second conduit means 688 can be maintained in communication with the reservoir 16 to prevent accidental removal of both conduit means 62,68. The clip 11.6 is made of metal, etc.
Can be formed of any material.

During use of the humidification system 10, when the water level in the bowl 20 of the humidifier 14 decreases, the sterile water W for humidifying the gas to be supplied to the patient is periodically replaced. Had to refill. This replenishment of sterile water W is normally carried out by removing the lid 22 from the bowl 2α, injecting new sterile water W into the bowl #20V'3, and raising the water level in the bowl 20. This replenishment method is troublesome, and the sterile water W injected into the ball 20 during operation is
The possibility of contamination is also rare. Other water supply methods are as explained at the beginning.

According to the invention, the water supply system 18 automatically supplies water from the reservoir 16 to the bowl 20 of the humidifier 14 to maintain the level of sterile water W in the humidifier 14 at a desired height E. can. If the level of the sterile water W becomes lower than the downstream end 72 of the second conduit means 68, gas will flow through the second conduit means 68 and create bubbles in the liquid in the reservoir 16, while Sterile water W flows through first conduit means 62 and is injected into humidifier 14 . Even if the water level in the humidifier 14 rises and blocks the downstream end 72 of the second conduit means 68, the sterile water W will continue to flow from the reservoir 16 to the humidifier 14 via the first conduit means 62 for a while. As the liquid continues to flow, a vacuum is created above the liquid in the reservoir 16. In order to prevent this liquid from flowing down into the reservoir 16, the vacuum within the reservoir must reach a negative pressure equal to the hydrostatic head at which the system is at equilibrium. The sterile water within the humidifier 14 closes the downstream end 72 of the second conduit means 68 and the sterile water begins to rise within the second conduit means 68 . Once the second conduit means 68 is filled with sterile water, the entire humidification system is in equilibrium.

Furthermore, as the humidification system IO continues to be used, the water level will eventually become lower than the downstream end 72 of the second conduit means 68 as sterile water is used to humidify the gas supplied to the patient. At this point, due to different surface tension, the gas initially
The second conduit means 68 is prevented from rising by a beveled portion formed at the downstream end 72 of the second conduit means 68.
The surface tension disappears and the second pipe 110 of the W,2 conduit means 68
can be drained. After draining the second conduit Wl 10, a pressure greater than its hydrostatic head acts on the lower part of the remaining water column in the second conduit means 68, and the sterile water flows into the reservoir 16 and then into the first conduit means 68. After 62, again,
The normal flow of sterile water begins, and the gas flows through the second conduit w68.
, and then flows upward.

In the present invention, the first tube 106 is made as small in diameter as possible and the second tube 110 is made in as large a diameter as possible without impeding the flow of gas through the elbow and out of the outlet 42 to the patient. be. The first pipe 106 and the second pipe 110 are
It is manufactured to the desired dimensions to allow water supply by the water supply system 18 from the reservoir 16 to the humidifier 14.

As shown in FIG. 1, the water supply system 18 includes a pair of clamps 124 that can be tightened to occlude either the first conduit means 62 or the second conduit means 68 prior to the initial filling of the humidifier 14. It is equipped with 126. Of course, the clamps 124, 126 are open during use of the system to allow liquid and gas flow through the first conduit means 62 and the WI2 conduit means 68.

using a water supply system 18 connected to a reservoir 16;
Initially, it is desirable to fill the humidifier 14 to the desired water level. When water is supplied to the humidifier 14 via the relatively small diameter first conduit means 62, it may take a considerable amount of time, for example 25 minutes, before the level of liquid within the humidifier 14 reaches the desired height. is necessary. For this reason, it is desirable to initially supply water to the humidifier 14 via the relatively large diameter second conduit means 68, so that the liquid is also discharged from the lower edge of the downstream end 72 of the second conduit means 68 and the gas is First conduit means 62
flowing within. However, if the downstream ends of the first conduit means 62 and the second conduit means 68 are on the same slope, the sterile water W discharged from the second conduit means 68 will be sucked into the first conduit means 62. , so that the gas flows through the first s pipe means 6
2, the humidifier 14 is not able to flow upwards, so the filling of the humidifier 14 is delayed and may even stop. Accordingly, in the present invention, the downstream end 66 of the first conduit means 62 is connected to the second conduit means 68.
The sterile water rises into a first conduit means 62 which is spaced slightly above the lowest end of the downstream end 72 of the humidifier and which serves as a gas flow conduit during initial filling of the humidifier. I try not to do that.

The downstream end °66 is at an angle of 40° with respect to the longitudinal axis of the first conduit means.
It is desirable to form an angle in the range from 90° to 90°, preferably a right angle.

As described above with respect to FIGS. 4-6, the clip 116 engages the outwardly extending flanges 94.102 of the first and second conduit means 62.68 and .68 to prevent it from falling out of the reservoir 16. During use of the system 10, the first conduit means 62 or 6
If one of the holes 5 accidentally escapes from the reservoir 16, a large amount of air will leak into the reservoir circle and the bottom hole 5 of one side will not be exposed.
This results in liquid flowing out from 8 or 56. moreover,
Water continuously flows into the humidifier 14 through one of the connected conduits 62, 63, and the vent pipe 12 allows some of the water in the humidifier 14 to flow through the corrugated pipe 114. into the patient's lungs, resulting in drowning or other serious danger to the patient.

Thus, in the event that either one of the conduit means 62, 68 becomes dislodged from the reservoir 1d, the clip 116 prevents it from becoming dislodged, thereby avoiding danger to the patient.

The above detailed description is provided for clarity of understanding only and is not meant to be an unnecessary limitation, and modifications will be apparent to those skilled in the art.

[Brief explanation of the drawing]

1 is a schematic plan view of the humidifying system of the present invention, FIG. 2 is a sectional view of the humidifier for the humidifying system of FIG. 1, and FIG. 3 is a schematic sectional view of the water supply system for the humidifying system of FIG. 1. FIG. 4 is a schematic perspective view of the lower part of the reservoir for the humidification system of FIG. 1; FIG. 5 is a perspective view of the clip for the reservoir of FIG. 4; and FIG. 6 is a weir of the lower part of the reservoir. FIG. 3 is a perspective view showing the upstream end of the conduit. 10 Humidification system 12 Ventilation pipe 14 Humidifier 16 Reservoir 18 Water supply system 20 Ball 22 Pa Lid 25 Chamber 26 Heater 28 ·entrance . 30... Tubular portion 32... Hole 34... Annular flange 36... Scatter plate 40... Tubular portion 44... Corrugated tube 48... Hook 50... Upper ring 52... Outer wall 54...Chamber 56, 58...Lower hole 60...Downward extending protrusion 62...First (water) conduit means 64...Upstream end 66...Downstream end 68...Second (Gas) Conduit 70... Upstream end 72... Downstream end 74... Elbow 76... First hollow part 78... Second hollow part 80.82... Eleventh second hollow nudge 84 .86・
・・3rd and 4th Hollow Nitzuguru (5 others) Procedural amendment 1936/2019 Month//Day 2, Title of the invention , Relationship with the case of the person making the amendment Patent applicant's address: Za' Punto, V-Power: Zu-4, Agent

Claims (13)

[Claims] (1) a first elongated conduit means for supplying water from the reservoir to the humidifier; a second elongated conduit means parallel to the first elongated conduit means for flowing air from the humidifier to the reservoir; and first and second elongated conduit means; means for connecting an upstream end of the conduit means in fluid communication with the reservoir; and downstream ends of the first and second elongated conduit means are located within the humidifier, and the downstream end of the first conduit means is downstream of the second conduit means. means for connecting the cut-out conduit means to the humidifier, located adjacent the end thereof, such that the downstream end of the second conduit means is at an angle relative to the longitudinal axis of the second conduit means; A water supply system that connects a humidifier and a reservoir. (2) The connected water supply system of a humidifier and a reservoir according to claim 1, wherein the certain angle is about 45 degrees. (3) The connected water supply system of a humidifier and a reservoir as set forth in claim 1, wherein the downstream end of the first conduit means is located upstream of at least a portion of the second conduit means. (4) The humidifier and reservoir connected water supply system as set forth in claim 3, wherein the lowermost end of the downstream portion of the second conduit means is located adjacent to the first conduit means. (5) The connected water supply system of a humidifier and a reservoir as set forth in claim 1, wherein the certain angle is 60 degrees or less. (6) first elongated conduit means for supplying water from the reservoir to the humidifier; second elongated conduit means parallel to the first elongated conduit means for flowing air from the humidifier to the reservoir; means for connecting an upstream end of the conduit means in fluid communication with the reservoir; and downstream ends of the first and second elongated conduit means are located within the humidifier, and the downstream end of the first conduit means is downstream of the second conduit means. connecting conduit means to the humidifier, the conduit means being located adjacent to the end of the second conduit means, with at least a portion of the downstream end of the second conduit means being located on one side of the first conduit means and below the downstream end of the first conduit means; A connected water supply system of a humidifier and a reservoir, characterized by comprising means for. (7) The downstream end of the second conduit means is formed at a constant angle with respect to the longitudinal axis of the second conduit means, and the lowermost end of the second conduit means is located adjacent to the first conduit means. A connected water supply system of a humidifier and a reservoir as set forth in claim 6, characterized in that the water supply system is configured as follows. (8) The humidifier and reservoir according to claim 7, wherein the first conduit means is formed at an angle of about 90° with respect to the longitudinal axis of the first conduit means. Connection water system. (9) The connection between the humidifier and the reservoir as set forth in claim 7, wherein the downstream end of the first conduit means is located midway between the upper end and the lower end of the oblique portion of the second conduit means. Water supply system. (10) The humidifier and reservoir according to claim 7, wherein the first conduit means is formed at an angle of 40 to 90 degrees with respect to the longitudinal axis of the first conduit means. Connection water system. (11) a first elongated conduit means for supplying water from the reservoir to the humidifier; a second elongated conduit means parallel to the first elongated conduit means for flowing air from the humidifier to the reservoir; and first and second elongated conduit means; means for connecting the upstream end of the conduit means to the reservoir; a first hollow portion surrounding and spaced apart from the first and second conduit means; a second hollow portion extending at an angle to the longitudinal axis of the second conduit means and in fluid communication with the first hollow portion;
an elbow connected to the first and second conduit means, the downstream ends of the first and second conduit means extending through the elbow to a location within the humidifier; A connected water supply system for a humidifier and a reservoir, characterized in that the outer diameter of the second conduit means is significantly smaller than the outer diameter of the second conduit means. (12) A humidifier and reservoir according to claim 11, wherein the first conduit means has an inner diameter of about 0.080 inch and the second conduit means has an inner diameter of about 0.260 inch. Connection water system. (13) The inner diameter of the first hollow part of the elbow is approximately 0.730
12. The connected water supply system of a humidifier and a reservoir according to claim 11, wherein the water supply system is an inch.