JP2005287596A - Respiration gas feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a respiration gas feeder constantly operating a humidifier in a normal state by adopting a humidifier structure, when humidifying dry oxygen enriched air, allowing an easy and simple attachment/detachment between a lid part of the humidifier and a vessel part storing water for a user with a declined strength or an elderly user and surely and simply attaching it to a predetermined position of the respiration gas feeder. <P>SOLUTION: This respiration gas feeder 1 is provided with a storage means 11 detachably storing the humidifier 2 which comprises at least a water storage member 22 having an opening introducing the water for humidifying respiration gas by saturated vapor, to the inside, the lid member 21 closing the opening and having a respiration gas feed port and an exhaust port, and an elastic seal member provided between the water storage member 222 and the lid member 21 and airtightly sealing a joining face between the water storage member 22 and the lid member 21, and has a structure moving the water storage member 22 and/or the lid member 21 in such a direction that a storage space of the humidifier 2 of the storage means 11 crushes the elastic seal member. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a breathing gas supply device that supplies a breathing gas composed of oxygen gas or the like to a user, and more specifically, a humidification that contains water for appropriately humidifying the breathing gas. The present invention relates to a breathing gas supply device including a vessel.

  Conventionally, oxygen therapy for providing oxygen from oxygen cylinders to respiratory disease patients has been performed. Recently, oxygen-enriched air obtained by concentrating oxygen in the air (hereinafter referred to as “oxygen-enriched air”). "Is sometimes referred to as" concentrated oxygen gas "), and therapies using such respiratory gas supply devices are becoming increasingly popular. Usually, these oxygen therapies aim to supply gas such as oxygen and oxygen-enriched air to the patient's nasal cavity and the like. Further, as a device for supplying breathing gas to a patient's nasal cavity, for example, in order to obtain oxygen-enriched air as a breathing gas by concentrating oxygen gas from the air, nitrogen gas in the air is selectively used. Adsorption-type oxygen concentrators that are adsorbed and removed are used.

  However, the oxygen-enriched air normally obtained as a breathing gas by such an apparatus adsorbs and removes not only nitrogen gas but also water vapor gas. For this reason, the obtained breathing gas is in an almost dry state from which water vapor as well as water is removed. Even when the oxygen cylinder is filled and used as a breathing gas supply device, the concentrated oxygen gas is usually in an absolutely dry state. Therefore, when the patient inhales such a gas, the nasal cavity is caused to dry, causing discomfort and pain to the inhaled patient. Therefore, in order to prevent the nasal cavity from drying, a device has been devised to supply oxygen-enriched air in a state of being humidified to near saturated water vapor pressure.

  As a humidifier used for such a purpose, as disclosed in Japanese Patent Laid-Open No. 7-165402, dry oxygen-enriched air is introduced into water to be bubbled to give moisture. There are bubble humidifiers that attempt to humidify the oxygen-enriched air in a state. However, in such a bubble type humidifier (also referred to as a bubble type humidifier), there is a problem that droplets of water droplets are generated along with bubbles and this is accompanied by oxygen-enriched air.

  In addition, for oxygen-enriched air humidified by such a bubble humidifier, for example, if the filling water in the humidifier is soiled or bacteria are growing, it is also in the water droplets entrained by the droplets. These problems are brought into question. In particular, supplying oxygen-enriched air to a patient who is suffering from a respiratory disease that needs oxygen therapy and is exhausted may be harmful to the health of the patient. Therefore, it is not preferable from the viewpoint of hygiene.

  Therefore, a humidifier that does not cause such a problem is required. As such a humidifier, there is a moisture evaporation type humidifier as proposed in JP-A-6-238002. In this type of humidifier, there is also put to practical use an apparatus in which evaporated saturated water vapor is always present in a humidifying container, and this water vapor is applied to dry oxygen-enriched air for humidification.

  However, no matter which type of humidifier is adopted, the water used for humidification is constantly consumed, so for example, the humidifier is removed and replenished with water at least once a day. It is required to repeat the operation of reattaching this. In particular, users suffering from respiratory diseases are required to use the breathing gas supply device continuously for a long period of time, day or night, so that it is required to frequently replace the water in the humidifier. become. However, the frequent demand for such an operation is a great burden for patients whose physical strength is weak or who are elderly.

  Therefore, by simplifying the attachment structure of humidifiers attached to breathing gas supply devices such as oxygen cylinders and oxygen concentrators using means such as one-touch couplers, even elderly people and users with weak physical strength The structure is such that the humidifier can be easily and easily attached to and detached from the main body of the breathing gas supply device.

  For example, in Japanese Utility Model Laid-Open No. 6-39008, a guide is provided on the humidifier side, while a guide groove that engages with the guide is provided on the main body of the breathing gas supply device, whereby the humidifier is guided to the main body of the device. It has been proposed to mount it at a predetermined position along the groove. Furthermore, in this prior art, it has also been proposed to provide a means for confirming whether or not the position where the humidifier is attached is correct, thereby preventing the attachment of the humidifier to be defective.

  Certainly, if such a structure is adopted, the object that the humidifier can be easily attached to and detached from the main body of the breathing gas supply device can be achieved. However, since the water used for humidification is constantly consumed as described above, it is necessary to frequently replace and replenish the water. It is necessary to open and pour water into the container. Therefore, it goes without saying that if such a frequency is increased or the operation is complicated, a burden is imposed on a user whose physical strength is weak or old.

  Therefore, assuming such a user who is weak in physical strength or aged, it is assumed that the operation of attaching and removing the lid portion and the container portion of the humidifier itself can be performed as easily and easily as possible. Then, for the opening and closing operation of the humidifier lid and the container part, while adopting a structure that is as easy to use as possible, from the joint between the humidifier lid part and the container part that stores water Therefore, a seal structure capable of satisfactorily preventing gas leakage is required. However, on the other hand, as the structure for simplifying the attachment and detachment of the lid part and the container part is adopted, the airtightness between the lid part and the container part becomes incomplete on the other hand. There arises a problem that the container and the container part are easily detached.

  If such a problem occurs during the use of the breathing gas supply device, the airtightness between the lid of the humidifier and the container is not sufficient, and the breathing gas leaks from the humidifier. A situation occurs in which external air is mixed into the humidifier, and in the worst case, these parts are detached during use. Of course, it goes without saying that this is not desirable.

JP 7-165402 A JP-A-6-238002 JP-A-10-290836 Japanese Utility Model Publication No. 6-39008

  The present invention is intended to solve the problems described above, and assumes a user whose physical strength declines or is old when humidifying dry oxygen-enriched air. And a humidifier structure that allows easy and simple attachment / detachment between the lid of the humidifier and the container for containing water, and can be securely and easily attached to a predetermined position of the breathing gas supply device. Thus, an object of the present invention is to provide a breathing gas supply device which can always operate a humidifier in a normal airtight state.

  Here, as an invention according to claim 1 for solving the above-mentioned problem, “a water containing member having an opening for introducing water for humidifying a breathing gas with saturated water vapor, and closing the opening” A lid member provided with a supply port and a discharge port for breathing gas, and provided between the water accommodation member and the lid member to hermetically seal a joint surface between the water accommodation member and the lid member. A storage means for detachably storing at least a humidifier composed of an elastic seal member, and the water storage member and / or the above-described storage space in the direction in which the storage space of the humidifier of the storage means crushes the elastic seal member. A breathing gas supply apparatus having a structure for moving the lid member is provided.

  At this time, as the breathing gas supply device of the present invention, as described in claim 2, “a mounting guide groove into which the humidifier is introduced and mounted in the storage means, and a breathing gas on the humidifier side” The supply / exhaust port of the breathing gas on the storage means side is inserted into and removed from the supply / exhaust port, and the humidifier is introduced into the storage space along the mounting guide groove. The breathing gas supply device according to claim 1, comprising at least a connection joint for automatically connecting a breathing gas supply port / discharge port.

  Further, the breathing gas supply device according to the present invention includes, as described in claim 3, “the storage means includes a loading / unloading opening for loading / unloading the humidifier in / from a storage space of the humidifier and the device. An opening / closing member that opens and closes the detachable opening, and closes the opening / closing member after housing the humidifier in the storage space, thereby pressing the elastic seal member by bringing the opening / closing member into contact with the lid member of the humidifier. The breathing gas supply device according to claim 1, which has a structure for moving the lid member in a crushing direction.

  Further, as the breathing gas supply device of the present invention, as described in claim 4, “providing a biasing member for applying an adjusted sealing force to the lid member in contact with the elastic seal member, The breathing gas supply apparatus according to claim 1, wherein the amount of deformation of the elastic seal member is controlled by bringing the opening / closing member into direct or indirect contact with the biasing member.

  Furthermore, as the breathing gas supply device of the present invention, as described in claim 5, it is more preferable that the breathing gas supply device according to claim 4 wherein the biasing member is a compression coil spring. preferable.

  And as for the breathing gas supply device of the present invention, as described in claim 6, “in relation to the lid member and the water storage member constituting the humidifier, the former lid member has a cam-shaped guide groove. The latter water receiving member is provided with a guide pin that engages with the guide groove, and the guide pin is engaged with the guide groove to engage with each other, thereby joining the lid member and the water containing member. The breathing gas supply device according to claim 1, which has a structure in which a surface is sealed by the elastic sealing member.

  According to the invention relating to the breathing gas supply device according to the first aspect described above, the lid member and the water storage member of the humidifier body can be easily and simply detached by simply attaching the humidifier to the storage means. While adopting a possible structure, the sealing performance between the lid member and the water storage member is automatically ensured when the humidifier is attached. Therefore, when the water for humidifying the breathing gas is replaced or replenished, even if the lid member and the water storage member are not sufficiently attached or the sealing property is insufficient, The airtightness can be maintained mechanically so that no breathing gas leaks from the humidifier.

  Moreover, even a user whose physical strength is weak or old can attach the humidifier to the breathing gas supply device very easily and easily, and thus the load can be greatly reduced. Therefore, when humidifying the breathing gas, there is no problem due to poor attachment or poor sealing between the lid member of the humidifier body and the water storage member.

  According to the second aspect of the present invention, the supply / exhaust port of the breathing gas can be easily and reliably connected by simply inserting the humidifier into the body of the breathing gas supply device along the mounting guide groove. In addition, there is an excellent effect that the main body of the breathing gas supply device and the humidifier can be easily and reliably attached and detached with one touch.

  According to the third aspect of the present invention, the opening / closing member for opening and closing the mounting opening with respect to the mounting opening of the storage means provided for attaching or removing the humidifier is a lid member of the humidifier. By this, the lid member can be moved in the direction of crushing the elastic seal member provided on the joint surface between the water storage member and the lid member of the humidifier. Therefore, after attaching the humidifier to the breathing gas supply device, the elastic seal member between the water storage member and the lid member of the humidifier can be crushed by a simple operation of closing the opening / closing member. There is an effect that gas leakage from the portion can be reliably and easily sealed.

  According to the invention described in claim 4, when the humidifier is attached to the housing means of the apparatus main body, the elastic seal member provided in the humidifier is a seal that is adjusted in advance by the action of the biasing member. Since a force (biasing force) is applied, an excessive sealing force does not act on the elastic seal member, and a small sealing force that impairs the sealing performance does not act. For this reason, an elastic sealing member, a lid member, a water accommodation member, etc. are not damaged, and a sealing force is not insufficient.

  Furthermore, according to the invention described in claim 5, since the compression coil spring is used as the urging member, it is possible to provide a humidifier with an inexpensive and simple structure, and the initial compression length of the compression coil spring. It is possible to adjust the urging force applied to the elastic seal member by a simple adjustment such as changing.

  According to the sixth aspect of the present invention, the inside of the humidifier can be hermetically sealed without relying only on the seal structure of the humidifier itself, and the structure of the humidifier can be simplified. For this reason, a cam-shaped guide groove and a corresponding guide pin are provided on either one of the lid member and the water storage member of the humidifier, and these are engaged with each other to be fitted together. A simple seal structure in which the elastic seal member is crushed and the joint surface between the lid member and the water storage member is sealed by the elastic seal member by a simple operation by simply moving the guide pin along the groove. .

  Therefore, even if the user has weak physical strength or is elderly, the water in the humidifier can be exchanged and replenished very easily, and the lid member and the water storage member of the humidifier can be easily and easily installed. Can be assembled into. Furthermore, the crushing amount of the elastic seal member is automatically set and sealed under favorable conditions simply by engaging the guide pin at the position determined by the guide groove. Gas leakage from the joint surface between them can be reliably ensured. In addition, in terms of preventing this gas leakage, in order to be guaranteed by the present invention as set forth in claim 1, finally, double safety is provided.

  Hereinafter, embodiments of the breathing gas supply device of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view schematically illustrating a humidifier used in the breathing gas supply device of the present invention, and FIG. 2 is a front sectional view of FIG. However, as will be described later, FIG. 2 is connected to a breathing gas supply port and a discharge port of a breathing gas supply device main body 1 (hereinafter abbreviated as “device main body 1”) not shown in FIG. The supply side male joint 113 and the discharge side male joint 114 are additionally described.

  In FIG. 1 and FIG. 2 described above, 2 indicates a humidifier, and this humidifier 2 is basically composed of a lid member 21, a water storage member 22, and an elastic seal member 23. The lid member 21 is provided with a cam-shaped guide groove 211, and the water accommodation member 22 is provided with a guide pin 221 that engages with the guide groove 211. Therefore, the water containing member 22 containing the humidifying water 3 is held in the lid member 21 until the guide pin 221 is engaged with the guide groove 211 and the guide pin 221 is pressed against the rear end of the guide groove 211. The lid member 21 and the water accommodation member 22 can be normally attached while the elastic seal member 23 is being crushed by twisting it while pressing it.

  At this time, as shown in FIG. 1 (b), a mark 213 is attached to the lid member 21 to clearly indicate that the position where the guide pin 221 is locked is shifted from the normal position illustrated in FIG. 1 (a). In this case, as shown in FIG. 1B, even if the guide pin 221 is not locked at a normal position, this can be easily detected by the user. Therefore, it is preferable to attach the mark 213 to the lid member 21 so that the user can easily recognize that the guide pin 221 is always in contact with and locked to the rear end of the guide groove 211. . In addition, the guide pin 221 provided on either the water containing member 22 or the lid member 21 is paired with the guide groove 211 provided on the lid member 21 or the water containing member 22, and water is contained in the lid member 21. In order to hold the member 22 reliably and stably, three pairs are equally distributed (however, only one pair is shown in FIG. 1 and the other two pairs are not shown). It is preferable.

  The humidifier 2 assembled as described above is attached to the apparatus main body 1. At this time, the lid member 21 on the humidifier 2 side is connected to a supply port for supplying breathing gas to the inside of the humidifier 2. A supply-side female joint 215 and a discharge-side female joint 216 connected to a discharge port for discharging the humidified gas are provided. Accordingly, the supply-side male joint 113 and the discharge-side male joint 114 provided on the apparatus main body 1 side are made to correspond to the supply-side female joint 215 and the discharge-side female joint 216 on the humidifier 2 side, respectively, and gently from above. By simply plugging in, the assembled humidifier 2 and the apparatus main body 1 can be connected easily and easily to supply and discharge the breathing gas.

  At this time, in FIGS. 2 (a) and 2 (b), reference numerals 113a and 114a denote mounting grooves such as O-ring grooves. For example, by mounting a sealing member such as an O-ring on this groove, The male joints 113 and 114 and the female joints 215 and 216 are connected without gas leakage. Here, the embodiment illustrated in FIG. 2 (a) and FIG. 2 (b) will be briefly described. FIG. 2 (a) shows the lid member 21 and the water accommodating member 22 of the humidifier 2. Exemplifies a state in which the gas is not normally attached to the apparatus main body 1, and for this reason, the breathing gas introduced into the humidifier 2 without the elastic seal member 23 being sufficiently crushed. Indicates a leaking state. On the other hand, FIG. 2B illustrates a state in which the lid member 21 and the water accommodation member 22 of the humidifier 2 are normally attached to the apparatus main body 1, and will be described later. The lid member 21 is pressed by the member 115, and the sealing performance by the elastic seal member 23 is thereby improved. This point will be described later in detail.

  However, if only a simple mounting structure of the humidifier 2 to the apparatus main body 1 is adopted, if a mounting failure occurs between the lid member 21 and the water storage member 22 of the humidifier 2, this is dealt with. I can't. This is because the user should be careful not to attach the mark 212 so that mounting failure does not occur or to lock the guide pin 221 by pressing the guide pin 221 against the rear end of the guide groove 211. This is because it only has a meaning of warning that the humidifier 2 must be assembled with such care. That is, even if it is assumed that the user observes the normal usage method of the humidifier 2, if for some reason the user is between the lid member 21 and the water storage member 22 of the humidifier 2. This is because even if a situation occurs in which the installation is not carried out normally, it is completely incapable of handling this and cannot take any action.

  Therefore, in the breathing gas supply device 1 of the present invention, while taking advantage of the fact that the breathing gas supply port / discharge port is automatically connected by simply inserting the humidifier 2 into the device body 1, The main feature is that the structure is such that a malfunction such as gas leakage from the humidifier 2 does not occur due to an erroneous operation on the user side. Therefore, in the following, this feature of the present invention will be described in detail with further reference to FIG.

  FIG. 3 is a perspective view schematically illustrating a state in which the humidifier 2 is housed in the housing means 11 provided in the apparatus main body 1. In FIG. 3, FIG. FIG. 3 (b) shows a state before the humidifier 2 is stored in the storage means 11 before storing in the storage means 11. FIG. As is apparent from FIG. 3, an attachment / detachment opening for attaching / detaching the humidifier 2 is provided above the storage space of the storage means 11 for storing the humidifier 2. Furthermore, an opening / closing member 12 for opening and closing the opening is provided in the loading / unloading opening. Accordingly, when the user attaches the humidifier 2 to the apparatus main body 1, the user once opens the opening / closing member 12 to the position indicated by the broken line in FIG. Is stored in the storage means 11 and when the humidifier 2 is stored, the opening / closing member 12 is moved in the direction of the arrow in the figure to close it.

  At this time, the storage means 11 is provided with a mounting guide groove 111 corresponding to the outer shape of the humidifier 2 as illustrated in FIG. 3, and the apparatus main body of the humidifier 2 is provided by the mounting guide groove 111. The storing operation to 1 can be made very easy. Further, at the bottom of the mounting guide groove 111, the male joints 113 and 114 on the apparatus main body 1 side are provided, thereby corresponding to the first female joints 215 and 216 on the humidifier 2 side, respectively. It has a structure that can be inserted freely. Therefore, the humidifier 2 is gently dropped from the mounting opening formed above the storage means 11 until the humidifier 2 reaches the base 112 formed at the bottom of the storage space along the mounting guide groove 111. As a result, the humidifier 2 is mechanically accommodated in the accommodating means 11 on the apparatus main body 1 side, and the supply port and the discharge port for the breathing gas are simultaneously connected together.

  As described above, when the humidifier 2 is stored in the storage means 11 provided in the apparatus main body 1, the user is then provided above the storage means 11 by closing the opening / closing member 115. The operation for closing the mounting opening of the humidifier 2 is performed. At this time, the opening / closing member 115 is configured to contact the lid member 21 of the humidifier 2. Therefore, as shown in FIG. 2 (a), the lid member 21 of the humidifier 2 is pushed downward by the opening / closing member 115 that abuts, while the bottom of the water storage member 22 of the humidifier 2 is the base 112. To reach. Then, the bottom of the water accommodation member 22 is restricted by the base 112, and can no longer move downward, and is fixed at this position.

  At this time, since the elastic seal member 23 is sandwiched and crushed by the lid member 21 and the water accommodation member 22, the joint between the lid member 21 and the water accommodation member 22 is completely sealed by the elastic seal member 23. The Rukoto. For this reason, even if the humidifier 2 is incorporated in the apparatus main body 1 while the lid member 21 and the water storage member 22 of the humidifier 2 are not sufficiently incorporated due to carelessness on the part of the user, the inside of the humidifier 2 It is possible to avoid a situation in which the breathing gas leaks from.

  At this time, an open / close detecting means (not shown) such as a proximity switch or a limit switch is provided at a position where the open / close member 115 completely closes the mounting opening, and detects that the open / close member 115 is completely closed. This is a preferred embodiment in the present invention. This is because, by doing so, the breathing gas can be supplied only when it is detected that the opening / closing member 115 is completely closed.

  At this time, if the opening / closing member 115 is not completely closed, it is a preferred embodiment to warn this by means such as voice display or liquid crystal screen display. That is, by adopting such a mode, when it is detected that the opening / closing member 115 is open and the humidifier 2 is not normally attached to the apparatus main body 1, a warning message is displayed or a warning lamp is turned on. This is because the user can be informed that it is not properly mounted by lighting it or sounding an alarm sound.

  In the present invention, by bringing the opening / closing member 115 into contact with the lid member 21 as described above, the lid member 21 and / or the water storage member 22 are moved relative to each other to crush the elastic seal member 23, thereby the lid member. As described above, it is possible to improve the sealing performance at the joint between 21 and the water containing member 22. However, at this time, an excessive force acts on the elastic seal member 23 to damage the elastic seal member 23 (in a severe case, the lid member 21 and the water storage member 22 may be damaged) It is preferable to apply an appropriate force so as not to impair the service life. Conversely, there is a possibility that the amount of crushing of the elastic seal member 23 is insufficient and the inside of the humidifier 2 cannot be kept airtight.

  Therefore, in the present invention, in order to solve such a problem, it is preferable to provide an urging member, and this point will be described in detail with reference to FIG.

  In the embodiment of FIG. 2, the lid of the lid member 21 has a double structure including an upper lid 213 and a lower lid 214, and an urging member 217 is provided between the upper lid 213 and the lower lid 214. Therefore, by adopting such a configuration, the force of the opening / closing member 115 that contacts the upper lid 213 can be transmitted to the lower lid 214 via the urging member 217, and the elastic seal member 23 is thus transmitted by the transmitted force. Can be crushed. As the biasing member 217 used at this time, it is preferable to use the illustrated compression coil spring in that the device configuration can be made simple and inexpensive, but it is not limited to this example and has elasticity. A rubber material, a leaf spring, a bellows filled with a gas such as air, an air cylinder, or the like can be suitably used.

  Here, the urging force applied to the elastic seal member 23 by the urging member 215 can be adjusted to an optimum value by adjusting the vertical position of the locking member 218 provided at the center of the lower lid 214. it can. Moreover, when using the compression coil spring illustrated, it is adjustable by selecting the compression length and the spring constant appropriately. Therefore, it is possible to avoid a situation where an excessive sealing force acts or the sealing force is insufficient.

  As described above, the humidifier 2 used in the breathing gas supply device 1 of the present invention has a structure in which the lid member 21 and the water storage member 22 are very easily assembled. Even if there is a problem that the attachment between the lid member 21 and the water storage member 22 becomes insufficient during use of the product, or if it is bad, the humidifier is not related to such a problem. The gas leakage from 2 can be reliably eliminated.

  Note that the humidifier 2 attached to the breathing gas supply device 1 of the present invention can be a separate type in a state of being independent from a known oxygen concentrator, but JP-A-5-164200, Or like the method proposed by Unexamined-Japanese-Patent No. 2001-129091, etc., it is preferable to incorporate in an oxygen concentration apparatus main body. This is because the humidifier 2 of the present invention can be designed compactly and is therefore suitable as a built-in type. As a breathing gas supply device 1 incorporating such a humidifier 2, a well-known pressure fluctuation adsorption type oxygen concentrating device as described in JP-A-6-238002 can be preferably used. The description of the details of was omitted. This is because the details of the pressure fluctuation adsorption type oxygen concentrator that can be suitably used in the present invention are described in detail in the above-mentioned JP-A-6-236002.

  By adopting a breathing gas supply device equipped with a humidifier with the structure described above, it is easy to use for patients with respiratory illness whose physical strength is weakened or elderly, etc. Problems caused by poor handling by the user can also be solved. In addition, it can be widely provided as a medical breathing gas supply device that requires extremely high reliability to users who must inhale breathing gas such as concentrated oxygen gas. it can.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view schematically illustrating a humidifier used in a breathing gas supply device of the present invention, in which FIG. 1 (a) is a state in which the humidifier is normally assembled, and FIG. 1 (b) is a humidification. The state where the assembly of the container is defective is shown. Fig. 2 is a schematic cross-sectional view of Fig. 1. Fig. 2 (a) improves the sealability of the humidifier even if it is mounted abnormally and Fig. 2 (b) is mounted incorrectly. It is explanatory drawing for demonstrating this. It is the perspective view which illustrated typically signs that a humidifier is stored in storage means provided in an apparatus main part.

Explanation of symbols

1 Breathing gas supply device body 2 Humidifier 3 Water
11 Storage means
12 Opening / closing member
21 Lid member
22 Water container
23 Elastic seal member
111 Installation guide groove
112 Base
113 Male connector on supply side
114 Outlet male fitting
115 Opening / closing member
116 Micro switch
117 socket
211 Cam-shaped guide groove
212 mark
213 Upper lid
214 Lower lid
215 Supply side / female fitting
216 Discharge side female joint
217 Biasing member
221 Guide pin

Claims (6)

  A water containing member having an opening for introducing water for humidifying the breathing gas with saturated water vapor; a lid member that closes the opening and is provided with a supply port and a discharge port for the breathing gas; and the water Storage means for detachably storing a humidifier provided between the storage member and the lid member and comprising at least an elastic seal member that hermetically seals a joint surface between the water storage member and the lid member. The breathing gas supply device further comprises a structure for moving the water storage member and / or the lid member in a direction in which the storage space of the humidifier of the storage means crushes the elastic seal member.   A mounting guide groove for introducing and attaching the humidifier to the storage means, and a supply / exhaust port for breathing gas on the storage means side with respect to a supply / exhaust port for breathing gas on the humidifier side At least a connecting joint that is freely inserted and removed and that automatically connects the supply / exhaust port of the breathing gas by introducing the humidifier into the storage space along the mounting guide groove. The respiratory gas supply device according to claim 1.   The storage means includes an attachment / detachment opening for attaching / detaching the humidifier to / from the storage space of the humidifier and an opening / closing member for opening / closing the attachment / detachment opening, and after the humidifier is received in the storage space, 2. The breathing gas supply according to claim 1, further comprising a structure in which the lid member is moved in a direction in which the elastic seal member is crushed by closing the opening and closing member so that the opening and closing member contacts the lid member of the humidifier. apparatus.   An urging member that applies an adjusted sealing force to the lid member that abuts on the elastic seal member is provided, and the opening / closing member is abutted against the urging member directly or indirectly to achieve the elasticity. The respiratory gas supply device according to claim 1, wherein the amount of deformation of the seal member is controlled.   The respiratory gas supply device according to claim 4, wherein the biasing member is a compression coil spring.   With respect to the lid member and the water accommodating member constituting the humidifier, the former lid member is provided with a cam-shaped guide groove, and the latter water accommodating member is provided with a guide pin that engages with the guide groove, and the guide groove 2. The breathing gas supply according to claim 1, further comprising a structure in which a joint surface between the lid member and the water storage member is sealed by the elastic seal member by engaging the guide pin with each other and fitting each other. apparatus.

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