Appropriate characteristics for use of respiratory humidification systems

Abstract

To provide a humidification device in which its assembly and use fitness has been improved in details about the humidifying device which humidifies generally the gas supplied to a user.SOLUTION: A humidification system for delivering humidified gases to a user can include a heater base, humidification chamber having an inlet, outlet, and associated fluid conduit, and breathing circuit including a supply conduit, inspiratory conduit, and optional expiratory conduit. The humidification system can include various features to help make set-up less difficult and time-consuming. For example, the supply conduit, inspiratory conduit, and optional expiratory conduit can be coupled into a one-piece circuit to aid set-up. Various components can be color-coded and can have corresponding structures to indicate which components should be connected to one another during set-up. Such features can also help make the set-up process more intuitive for an operator, which can reduce the need for specialized training and reduce the number of potential errors.SELECTED DRAWING: Figure 1

Description

Technical Field

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[0001] Cross - Reference to Related Applications This application claims the benefit of U.S. Provisional Patent Application No. 61 / 639,632, filed Apr. 27, 2012, and U.S. Provisional Patent Application No. 61 / 785,733, filed Mar. 14, 2013, and each of these applications is hereby incorporated by reference in its entirety.

[0002] [[ID=,10]] This application generally relates to a humidification system for humidifying gas supplied to a user, and more particularly to a humidification system having features with improved assembly and usability.

Background Art

[0003] Many gas humidification systems deliver heated and humidified gas for various medical procedures, including respiratory therapy, laparoscopy, etc. These systems can be configured to control temperature, humidity, and flow by using various sensors.

[0004] Various components of such systems may also include features designed to assist in the control of the system and / or to assist in providing a gas having desired characteristics to the user. Such gas humidification systems can include many components that need to be assembled before use. The setup process can be complex and time - consuming and may require specialized training. Specialized training may need to be repeated for each new employee or user. Therefore, there is a need for systems that can be assembled and used intuitively without extensive training.

Summary of the Invention

Means for Solving the Problems

[0005] A humidification system for delivering humidifying gas to a user may include a heater base, a humidification chamber having an inlet, an outlet, and associated liquid conduits, and a breathing circuit including a supply conduit, an inhalation conduit, and an optional exhalation conduit. The humidification system may include various features, such as those described herein, to facilitate setup and save setup time. Such features can also help make the setup process more intuitive for the operator, thereby reducing the need for specialized training and the number of errors that may occur.

[0006] In some embodiments, the humidification chamber is packaged with the inlet and outlet ports covered by port caps. The port caps are designed to help the operator know that they need to be removed and discarded during setup. In some embodiments, the liquid conduit, or feedset, is enclosed in and concealed by a port cap, so that the feedset cannot be connected to the liquid source until the port cap is removed.

[0007] In some embodiments, the supply conduit, inhalation conduit, and optional exhalation conduit are coupled in a single assembly to assist with setup. The conduits may be coupled, for example, by a mesh sheath, clips, or any other suitable coupling mechanism. One or more conduits may be detachably coupled to other conduits. The exhalation conduit may include an electrical plug configured to connect to a socket on the heater base, supplying power to the heating element within the conduit. In some embodiments, one or more conduits may include an integrated sensor and adapter cable to connect the sensor to the heater base.

[0008] In some embodiments, the various components of the humidification system may be color-coded and have corresponding structures to indicate which components need to be connected to each other during setup. Additionally, the packaging of the heater base and / or consumables may include schematic or step-by-step instructions to help guide the operator through the setup procedure.

[0009] To summarize the advantages achieved by this disclosure and the prior art, several objectives and advantages are described herein. Naturally, it will be understood that not all such objectives or advantages must necessarily be achieved according to any particular embodiment. Therefore, for example, this disclosure may be provided or implemented to achieve or optimize one or a group of advantages as taught or proposed herein, but it will be recognized that it is not necessary to achieve other objectives or advantages as taught or proposed herein. All of these embodiments are within the scope of this disclosure. These and other embodiments will be readily apparent to those skilled in the art from the following detailed description with reference to the accompanying drawings, and this disclosure is not limited to one or more embodiments of any particular disclosure.

[0010] These and other features, aspects and advantages of this disclosure will be described with reference to the following drawings, which are for illustrative purposes only and do not limit the scope of this disclosure. [Brief explanation of the drawing]

[0011] [Figure 1] An exemplary embodiment of a humidification system is shown. [Figure 2A] An exemplary embodiment of a humidification chamber mounted on a heater base is shown. [Figure 2B] An exemplary embodiment of a humidifying chamber is shown. [Figure 3] An exemplary embodiment of the heater base is shown. [Figure 4A] An exemplary embodiment of the humidifying chamber when packaged is shown. [Figure 4B]Shows an exemplary embodiment of the humidification chamber when packaged. [Figure 4C] Shows an exemplary embodiment of the humidification chamber when packaged. [Figure 4D] Shows an exemplary embodiment of the humidification chamber when packaged. [Figure 4E] Shows an exemplary embodiment of the humidification chamber when packaged. [Figure 4F] Shows an exemplary embodiment of the humidification chamber when packaged. [Figure 4G] Shows an exemplary embodiment of the humidification chamber when packaged. [Figure 4H] Shows an exemplary embodiment of the humidification chamber when packaged. [Figure 4I] Shows an exemplary embodiment of a spike including a sheath. [Figure 4J] Shows the spike shown in Figure 4I without a sheath. [Figure 5A] Shows an exemplary embodiment of a sensor cartridge module and a humidification chamber. [Figure 5B] Shows an exemplary embodiment of a sensor cartridge module coupled to a heater base. [Figure 5C] Shows an exemplary embodiment of a sensor cartridge module connected to a heater base by an electrical cable. [Figure 6] Shows an exemplary embodiment of the humidification chamber. [Figure 7A] Shows an exemplary embodiment of a breathing conduit when packaged. [Figure 7B] Shows an exemplary embodiment of a humidification chamber having features that facilitate proper connection. [Figure 8] Shows an exemplary embodiment of a conduit having features corresponding to the features shown in Figure 7B. [Figure 9A] Shows an exemplary embodiment of a monolithic circuit. [Figure 9B] Shows an exemplary embodiment of a releasable connection system for a monolithic circuit. [Figure 10]A method for setting up a humidification system is shown. [Figure 11] Exemplary embodiments of a heater base and a humidification chamber are shown.

DETAILED DESCRIPTION OF THE INVENTION

[0012] Some embodiments and examples are described below, but those skilled in the art will recognize that the present disclosure extends beyond the specifically disclosed embodiments and / or their examples of use and obvious modifications and equivalents. Therefore, the scope of the present disclosure is not limited to any particular embodiment described below.

[0013] An exemplary embodiment of a humidification system 100 may include, for example, as shown in FIG. 1, a heater base 102, a humidification chamber 104, and a breathing circuit or breathing circuit assembly. In some embodiments, the system 100 may further include a gas supply device 130, such as a ventilator, or other suitable pressurized gas source suitable for use in breathing or medical procedures. The heater base 102 may include a heating plate 108 (well shown in FIG. 3). Further, the heater base 102 may include one or more processors 114, and one or more memories or other suitable storage components. In some embodiments, the heater base 102 may also include a display that enables information to be provided to an operator and / or enables input to be received from an operator.

[0014] In some configurations, the display may have a diagram that facilitates the operator making the desired connections, possibly in a desired order. For example, the display may have a still image of light (e.g., LEDs) under different conditions, which illuminate in sequence to indicate the desired connection order. In some configurations, the image may be formed on a thin film on which a polyester or polycarbonate film is printed as a backscreen, and the LEDs are mounted on or positioned adjacent to this film. In some configurations, the sequence may be initiated when a switch is operated, such as by inserting the humidification chamber into a heater base. Such a configuration solves any need for the operator to power on the heater base and receive feedback regarding the correct connection order. Other preferred arrangements may also be used.

[0015] The humidification chamber 104 generally includes an inlet 110 and an outlet 112 and is configured to be mounted on a heating plate 108 of a heater base 102. The humidification chamber 104 is further configured to hold a certain amount of liquid, such as water. The chamber 104 may include openings or ports for connecting a liquid conduit or feed set 118. As shown in Figure 2A, the liquid conduit 118 may extend from the chamber 104. In some configurations, the liquid conduit 118 is connected to a spike for a water bag. In some configurations, the liquid conduit 118 may be formed integrally with the chamber 104 or permanently bonded to it. The spike may be bonded to the liquid conduit 118 by adhesive, ultrasonic welding, tack welds, or any other suitable means. In some embodiments, the spike includes a vent. The vent is closed when the spike is inserted, for example, into a plastic foldable bag. However, when the spike is inserted into a rigid container such as a glass bottle, the vent is opened, allowing air to enter the container and helping to reduce or prevent negative pressure from forming inside the container. The vent may include a filter that is gas-permeable but liquid-impermeable.

[0016] During use, the liquid conduit 118 carries a liquid, such as water, from a liquid source, such as a water bag or a saline bag, to the chamber 104. A heating plate 108 heats the chamber 104 to evaporate at least a portion of the contents of the chamber 104. In some embodiments, the humidifying chamber 104 may include features that help reduce the likelihood of the liquid level in the chamber 104 exceeding a certain level. For example, as shown in Figures 2B, 4A, and 4B, the chamber 104 may include one or more floats 150. The floats rise and fall with the liquid level in the chamber 104. When the liquid level reaches a certain level, the floats 150 block or close the ports connected to the liquid conduit 118 to prevent or slow down further liquid from entering the chamber 104. Other similar features may also be used. In preferred embodiments, multiple floats 150 are used, each float being adapted to prevent further liquid from entering the chamber 104. For this purpose, the second float provides a reserve or safety mechanism, thereby further reducing the possibility of overfilling the chamber 104. Figure 2B shows an exemplary embodiment of such a chamber 104 having a main float 250a and a secondary float 250b.

[0017] Continuing with reference to Figure 1, the breathing circuit assembly may include a supply conduit 120, an inspiratory conduit 122, and, in some configurations, an expiratory conduit 124. The gas supply end of the supply conduit 120 is configured to connect to the output 132 of the gas supply device 130, and the chamber end of the supply conduit 120 is configured to connect to the chamber inlet 110 of the chamber 104. The chamber end of the inspiratory conduit 122 is configured to connect to the chamber outlet 112 of the chamber 104, and the user end of the inspiratory conduit 122 is configured to connect to the user 128, for example, via an interface 126. The user end of the expiratory conduit 124 is configured to connect to the interface 126, and the gas supply end of the expiratory conduit 124 is configured to connect to the return port 134 of the gas supply device 130. The user ends of the inspiratory conduit 112 and the expiratory conduit 124 may connect to the interface 126, for example, via a Y-piece 127, but are not limited to this.

[0018] During use, gas flows from the gas supply device 130 through the supply conduit 120 and via the inlet 110 to the chamber 104. The gas is humidified in the chamber 104 and exits from the chamber 104 through the outlet 112. The user inhales the humidified gas supplied through the inhalation conduit 122 and exhales into the exhalation conduit 124. The inhalation conduit 122 and / or the exhalation conduit 124 may include heating elements, such as electric heating wires, to help maintain the gas at a desired temperature and reduce the likelihood of significant condensation formation in the conduits.

[0019] Before use, operators such as medical professionals need to set up system 100 by correctly connecting its various components. Because there are various components that need to be connected and numerous connection points, setting up system 100 can be a complex process requiring specialized training to be completed correctly. The humidification system 100 may include various features, as described herein, that simplify the setup process and reduce the possibility of incorrect setup. In some embodiments, certain user-friendly features may conveniently help reduce the total number of steps and the time required during the setup process. Some features described herein may also help users perform the setup more intuitively, thereby reducing the need for specialized training.

[0020] To begin setup, the operator places the humidification chamber 104 on the heater base 102 by sliding the chamber 104 onto the heater base 102 along the underside of the rim 106 (shown in Figure 3). The rim helps to hold the chamber 104 in place. The heating plate 108 can be spring-loaded in some configurations, with the base of the chamber 104 applying downward pressure to the heating plate 108, and the protruding portion 105 of the chamber 104 being trapped between the heating plate 108 and the rim 106. Preferably, a protective material 107 along the front portion of the rim 106 is pushed down to allow the lower portion of the chamber 104 to access the heating plate 108, and then, once the chamber 104 is in place, the protective material 107 returns to its unpressed position. In some configurations, the foremost portion of the rim edge 106 (for example, the portion of the rim edge 106 that defines an opening for inserting the chamber 104) is configured to have a downwardly sloping ridge or enlarged opening 109. The opening 109 preferably includes a lower surface that rises above the upper surface of the unpressed protective material 107. In this way, the opening 109 provides the operator with a visual cue, allowing the protruding portion 105 to be inserted into the opening. Further insertion of the chamber 104 into the opening can push down the protective material 107, facilitating the full insertion of the chamber into the heater base and helping to guide the chamber 104 into place. Thus, from the visible detail, the operator can see that the chamber 104 is sliding into place below the rim edge 106. This can also help inform the operator that the protective material 107 can be pushed down to later remove the chamber 104 from the heater base 102. Preferably, the chamber 104 has a detail that pushes down the protective material 107 when the operator attempts to remove the chamber 104 from the heater base 102. Furthermore, by providing a non-flat upper surface on the rim edge 106, the likelihood of the operator thinking that they need to position the chamber 104 on the rim edge 106 is reduced. Such positioning results in a non-flat chamber 104, thus reducing thermal conductivity.

[0021] Humidification chambers, such as chamber 104, are often generally circular with smooth sides, and their shape makes it difficult for an operator to hold the chamber 104 during setup and installation. During humidifier setup, the chamber 104 is grasped and then slid into place on the heater base 102 as described above. Therefore, as shown in Figure 4D, the chamber 104 may conveniently include a grip 168 to allow an operator to hold the chamber 104 more easily during installation. In some embodiments, as shown, for example in Figure 4D, the grip 168 is positioned at a specific location on the chamber 104 and helps guide the operator to position the chamber 104 in the correct orientation when sliding the chamber 104 on the base 102. In some embodiments, the grip 168 extends partially or completely around the chamber 104. The grip 168 may include, for example, one or more of the following: a recess or cavity on the surface of the chamber 104, vertical fins, a textured surface, and / or a handle. In the illustrated configuration, the side wall of the chamber includes a recess extending inward toward the chamber. The recess may include ribs or the like to enhance the user's ability to hold the chamber by the recess. The recess may be positioned along a forward-facing surface. In some configurations, a port extending above the humidifier chamber may include a rearward-facing opening, while the recess is recessed into the humidifier chamber and faces forward. A forward-facing grip helps to position the chamber in the correct orientation for installation. In some configurations, the recess extends only partially across the entire height of the chamber. In some configurations, the recesses face each other so that gripping force can be applied by the user's fingers and thumb.

[0022] Referring to Figure 4A, the humidification chamber 104 may be packaged with the inlet 110 and outlet 112 covered by a port cap 160. The port cap may seal or enclose the chamber 104 during delivery and storage. The port cap 160 includes legs 162 which extend to the inlet 110 and outlet 112 and may restrain the float 150 in place for delivery. In some configurations, the liquid conduit 118 may be wound around and housed in a winder 166 provided in the chamber 104. During setup, after the humidification chamber 104 is installed on the heater base 102, the port cap 160 may be removed, preferably before winding the liquid conduit 118 and connecting it to the liquid source via the spike 164. Once the spike 164 is connected to the liquid source, the liquid begins to fill the chamber 104. However, if the liquid conduit 118 is connected to the liquid source before the port cap 160 is removed, the float 150 remains constrained and cannot function to slow down or block the flow of liquid into the chamber 104, thus posing a risk of overfilling the chamber 104.

[0023] In some embodiments, to reduce the possibility of overfilling, the chamber 104 is packaged with the liquid conduit 118 trapped between the inlet port 110 and outlet port 112 of the chamber 104 and the port cap 160. The liquid conduit 118 may further be partially hidden from the operator until the port cap 160 is removed. However, it is preferable that the liquid conduit 118 be located beneath the port cap 160 so that it is visible when the port cap 160 is in place, thereby allowing the operator to remove the port cap 160 and access the liquid conduit 118. Furthermore, it is preferable that the removal of the port cap 160 unwinds or spreads out the liquid conduit 118. This packaging arrangement also reduces or eliminates the need for the winder 166 to include the liquid conduit 118, and the need for the setup step of removing the winder 166 from the chamber 104 and unwinding the liquid conduit 118 from the winder 166. In some embodiments, the spike 164 and / or the liquid conduit 118 float freely and are not bound by the winder 166 or the port cap 160. This can help reduce the likelihood of operator confusion about whether the liquid conduit 118 needs to be unwound during setup. In some arrangements, the spike 164 hangs freely in an exposed state, further encouraging the removal of the port cap 160. In some configurations, the spike 164 is partially exposed and partially captured by the port cap 160, thereby encouraging the removal of the port cap 160 and providing access to the spike 164.

[0024] Additional features may help reduce the likelihood of an operator mistaking the port cap for an operating part of a system intended to remain in place during use. For example, as shown in Figures 4B and 4C, the alternative port cap 170 may include a single plane extending over both ports, simple sides surrounding the ports, and optionally a liquid conduit 118. This design may give the port cap 170 the appearance of a lid and allow it to be removed from the chamber 104 before use. The port cap 170 may also include a lip detail around or around part of the periphery of the flat top surface to allow an operator to grasp it for removal. The flat top surface may provide a surface for an optional indicator label, or a label with, for example, an image of a trash can, to indicate to the operator that the port cap 170 is intended to be removed and discarded. In some configurations, the port cap may be formed from a certain material or have coloring that incentivizes the port cap to be discarded.

[0025] Referring to Figure 4D, another exemplary embodiment of a port cap 170 that can be used with the winder 166 includes a cap body 172 and a float retainer 174, the float retainer having a tab or pull loop 176 and legs 162 extending to the inlet 110 and outlet 112 to restrain the float 150. The cap body 172 may be formed to be at least partially translucent or substantially transparent to show the conduits placed inside the cap body 172. The cap body 172 may include arrows and / or other visible or other indicators to indicate to the operator the correct insertion direction of the chamber 104 into the heater base 102. In some embodiments, the cap body 172 may include labels with instructions for setting up the chamber to increase the likelihood that the person performing the setup will follow the correct or desired set of setup steps. In some embodiments, as shown in Figure 4E, the float retainer 174 is detachable from the cap body 172 and can be removed from the chamber 104 before the cap body 172. As shown in Figure 4F, the winder 166 is exposed by removing the cap body 172. Alternatively, the float retainer 174 may be molded or coupled integrally with the cap body 172, so that both components are removed simultaneously, for example, by pulling the pull loop 176. Both embodiments conveniently ensure that the float retainer 174 is removed once the winder 166 is exposed and the float 150 is no longer restrained, before the liquid conduit 118 is connected to the liquid source. In some embodiments, the winder 166 is coupled to the chamber 104 by a clip, or by other features that are clipped or otherwise engaged and connected to a chamber port. As shown in Figure 4F, the liquid conduit 118 may extend from the liquid inlet 117 of the chamber 104, around the winder 166, through the vent 167 to the winder 166, and coupled to a spike 164, which rests inside the winder 166 as shown in the illustrated embodiment. In the illustrated embodiment, the cap body 172 is sized and shaped to also cover the liquid conduit 118 when it is in place for delivery and / or storage.In some configurations, the winder 166 includes features for securing the spike in a horizontal position (e.g., delivery position) and a non-horizontal, i.e., vertical position (e.g., inspection position). For example, the winder 166 may include a longitudinal receiving section 186 within the winder 166, which has an overall oval shape and is configured to accommodate the spike and / or secure the spike in the horizontal delivery position. The winder 166 may also include an overall annular receiving section 188 configured to accommodate the gripping portion 190 (shown in Figure 4J) of the spike 164, so that the spike 164 can be positioned in a substantially vertical position for inspection. The liquid conduit 118 can be secured to the liquid inlet 117 by an adhesive such as abrasive or any other suitable technique. A tube holder 119 may help secure the liquid conduit 118 to a portion of the winder 166 or to the top of the chamber 104 and help to feed the liquid conduit 118 from the liquid inlet 117 to the winder 166. In some embodiments, the operator can remove the spike 164 from the winder 166 and unwind the liquid conduit 118 from the winder 166 to connect the spike 164 to a liquid source. In some embodiments, after unwinding the liquid conduit 118, the operator can remove the winder 166 from the chamber 104 and discard the winder 166.

[0026] Figures 4G and 4H show additional embodiments of packaging the liquid conduit 118. In both illustrated embodiments, the liquid conduit 118 is wound into a loop configuration, for example, by winding the liquid conduit 118 around a jig. In some embodiments, a label 218 is attached to the liquid conduit before winding and used to secure the liquid conduit 118 into the loop configuration. In the embodiment of Figure 4G, the looped liquid conduit 118 is placed inside a foldable card 178 coupled to the top of the chamber 104. The card 178 can be made of cardboard, plastic, flexible material, or any other suitable material, and its bottom 178a can be secured to the chamber 104 using adhesive and / or by notches 280 configured to be positioned around the chamber's inlet and outlet ports. The top 178b of the card 178 can be secured by notches and / or port caps 160 configured to fold over the bottom and to be positioned around the chamber's inlet and outlet ports. In some embodiments, the spike 164 can be secured to the base of the card 178 between the top and bottom by a slot or clip. The bottom 178a of the card includes a slit 282 that can accommodate a liquid conduit 118 extending between the card 178 and the liquid inlet 117. In some configurations, a loop-shaped conduit may be positioned widthwise on the card. In the embodiment shown in Figure 4H, the loop-shaped liquid conduit 118 is located in a cavity 111 molded at the top of the chamber 104 and is protected by a tube cover 179, which may include a port cap 160. The bottom surface of the tube cover 179 may include features for securing the spike 164. In some embodiments, a label with brand name indication, instructions, and / or other information can be attached to the tube cover 179, the card 178 (e.g., the top 178b or the card 178). In other words, in some configurations, one or more of the cards (e.g., the top 178b of card 178) and the tube cover 179 may incorporate one or more sides that can be used for instructions (e.g., unpacking instructions, setup instructions, etc.), labels, or warnings.In some configurations, card 178 may contain sequential instructions, increasing the likelihood that the person performing the setup will follow the correct or desired sequence of setup steps. For example, card 178 may have sequential or slightly staggered steps to follow. In some configurations, card 178 or another component may only describe steps that involve exposed or accessible components.

[0027] As shown in Figures 4F and 4I, the spike 164 may be packaged with a spike cap or sheath 165 that the operator removes before use, as shown in Figure 4J. The sheath 165 may include a tab or similar feature to facilitate removing the spike 164 from the winder 166 and / or removing the sheath 165 from the spike 164. In some configurations, the cap is not connected to any other component, and the operator knows how to remove the cap. A label may also be used to instruct the operator on how to set up the liquid conduit 118 and liquid source. Generally, the humidification system 100 uses water to humidify the gas passing through the humidification chamber 104. To indicate to the operator that the spike should be connected to a water bag rather than a different type of liquid, e.g., saline solution, the liquid conduit 118 and / or chamber 104 may include a label that can be read, for example, "H2O". Preferably, any such visible indicator, including a label, is positioned closer to the spike than the body of the chamber when the conduit is extended outward. The label on the liquid conduit 118 may also help the operator draw attention to the water spike 164, which is not apparent to the operator when it is hidden by the spike cap. The chamber 104 may also include a label indicating the appropriate water level.

[0028] In some configurations, the spike can be secured to the tube using any preferred technique. For example, in some configurations, the spike can be secured to the tube using adhesive, ultrasonic welding, or tack fitting. A label can then be attached to the tube. In some configurations, the label may be loosely looped to cover the tube and may include an adhesive end (e.g., exposed adhesive). In some configurations, the label can be positioned closer to the spike than another end of the tube. The tube can be wrapped around a jig or the like and secured to the loop configuration using the label (e.g., using the adhesive end to secure one end of the label to another part of the label). When the tube is wrapped, the ends preferably have enough slack to connect the tube and spike to the chamber. The non-spike end can be secured to the chamber using any preferred technique. In some configurations, the non-spike end can be inserted into the water inlet hole of the water chamber and secured using axle or the like. The loop end of the tube can be positioned above or between the inlet and outlet ports of the chamber. The spike can be secured to a receiving part. In some configurations, the receiving portion can be formed into or fixed to a part of the chamber. In some configurations, the spike can be fixed to the chamber in a point where it extends away from the chamber for inspection. Inspection can be performed in the assembled chamber. After inspection, the spike can be removed from the chamber, and the spike and tube can be fixed for delivery in any preferred manner, including those described above.

[0029] The humidification system 100 may include reusable temperature and / or flow probes in or near the humidification chamber 104. For example, a flow sensor may be positioned at the chamber inlet 110 to sense the flow rate of gas entering the chamber 104 from the gas supply device 130. A temperature sensor may be positioned at the chamber inlet 110 to sense the temperature of the gas entering the chamber 104 from the gas supply device 130. A temperature sensor may be positioned at the chamber outlet 112 to sense the temperature of the humidified gas leaving the chamber 104. A flow sensor may be positioned at the chamber outlet 112 similarly or alternatively to sense the flow rate of gas leaving the chamber 104 and being delivered to the user.

[0030] In some embodiments, as shown in Figure 5B, a reusable temperature and / or flow sensor probe 206 may be incorporated into a sensor cartridge module 200. Figure 5C shows the sensor cartridge module 200 connected to the heater base by an electrical cable. However, the sensor cartridge module 200 in Figure 5B is mechanically and electrically connected to the heater base 102 via a spine 210, and thus can transmit power to the sensor, while also providing a mounting position for the sensor, for example, but not limited to. In some configurations, the spine 210 and the port cap may have an interface configuration such that the movement of the chamber, with the port cap positioned toward the spine during the installation of the chamber onto the heater base, causes the spine to raise the port cap from the chamber. Such a configuration increases the possibility of the operator removing the port cap from the chamber. Other preferred configurations may also be used.

[0031] The sensor cartridge module 200 also enables data transmission between the sensor and the processor 114 in the heater base 102. For example, as shown in Figure 6, the chamber inlet 110 and outlet 112 may have apertures 140, 142 through them. Thin films or grommets 144 of the probes, sized and shaped to accommodate the temperature and / or flow probes 204, 206, can be positioned within the apertures 140, 142 and permanently sealed. In the configuration of Figure 5B, the spine-mounted probes do not align properly with each aperture, prompting the operator to position the chamber base below the rim edge 106.

[0032] By correctly inserting the chamber 104 into the heater base 102, the sensor probe 206 can be automatically positioned within the apertures 140, 142 of the chamber's inlet 110 and outlet 112. This conveniently simplifies setup and reduces the possibility of improper electrical connections, improper pneumatic seals, and / or assembly compared to a separate reusable sensor that would need to be manually inserted into the heater base 102 and electrically connected. The thin film 144 of the probe prevents the probe from coming into direct contact with the gases entering and leaving the chamber 104. Therefore, the probe can be reused without the need for cleaning and storage of the probe 206, and without the need to disconnect and reconnect the wires after each use.

[0033] To help guide the operator through the installation of the chamber 104 on the heater base 102 and its proper connection with the sensor cartridge module 200, the chamber 104 and the sensor cartridge module 200 may include retractable features such as corresponding male and female connectors. For example, one or more of the base 102 and the cartridge module 200 may include a structure that engages with the structure 201 of the chamber 104. In the configuration of the chamber 104 shown in Figure 4F, the structure 201 is a recessed portion. Therefore, the vertical height of the chamber 104 may be shorter in the portion closest to the housing of the heater base 102 when installed, while the vertical height of the chamber 104 may be higher in the portion positioned away from the cartridge module 200. Such a configuration may reduce the possibility of the chamber being inserted rearward into the base 102 and causing damage to the sensor. Thus, a cooperative configuration that significantly increases the likelihood of coupling the chamber 104 to the base 102 is achieved only when the chamber 104 is oriented in the correct rotational direction. Furthermore, the cooperative structure can provide a visual cue for the correct rotational orientation of the chamber 104. The cooperative structure can be any combination of a male in the base and a female in the chamber, a female in the base and a male in the chamber, or male and female parts in the base and chamber.

[0034] As another example, the sensor cartridge module 200 may include a central male projection 202 configured to slide into a female recess 204 of the chamber 104. Alternatively, the chamber 104 may include a male projection configured to slide into the center of the sensor cartridge module 200. Preferably, the female recess 204 is configured such that there is only one possible orientation of the chamber relative to the male projection 202. Any other configuration or interlocking assembly can be used. In some configurations, the chamber 104 may include, for example, chamfered or angled edges or projections 205 on its sides, but are not limited to these. These projections 205 may cooperate with the structure of the base 102 or be on the cartridge module 200. Cooperation preferably helps to pull or urge the chamber 104 into a fully seated position relative to the base 102. Thus, the projections 205 and the cooperating structure provide another example of a structure that can place the sensor probe 206 in the correct orientation and properly position it relative to the chamber. These means of aligning the chamber correctly with respect to the heater base also conveniently assist in the proper positioning of the sensor probe 206 into the chamber port. Conveniently, when the chamber 104 docks with the sensor cartridge module 200, the sensor probe can be automatically inserted into the chamber port to the appropriate distance or depth. In other words, the risk of the probe 206 not being fully inserted into the port of the chamber 104 can be reduced or eliminated. Preferably, the connection between the sensor cartridge module 200 and the chamber 104 is nearly horizontal (e.g., parallel to the top surface of the heating plate).

[0035] In some configurations, the chamber may have a recess that accommodates a projection from the spine or other part of the heater base. Such a configuration can help guide the chamber into place on the heater base in the desired rotational orientation. In some configurations, the chamber may be rotated to place on the heater base rather than being translated to place. For example, a slot may have a post that can slide vertically downward to the slot, and the rotation of the chamber may position the post below the rim edge 106. In some configurations, if the sensor cartridge module 200 is mounted to the chamber before the chamber is mounted to the heater base, the rotation of the chamber may establish an electrical connection between the components mounted to the chamber (e.g., the sensor) and the heater base. The rotation of the chamber also defines the horizontal connection direction. Other configurations are also possible.

[0036] Some humidification systems 100 also include temperature and / or flow sensors at various locations in the breathing circuit to monitor the state of the gas as it moves through the system 100 to and from the user 128. Some such systems include a reusable temperature sensor at or near the user end of the inhalation conduit 122 to ensure that the gas reaching the user 128 is at the appropriate temperature. Because the various conduits in the circuit are generally disposable, the reusable temperature sensor needs to be coupled separately to the inhalation conduit 122 during setup and further connected to the heater base 102 for power and data transmission. The user may forget to fully connect the sensor and / or sensor cable, or inadvertently fail to fully insert the sensor into the inhalation conduit 122, thereby distorting the sensor data. According to some embodiments of the present disclosure, the disposable user-end temperature sensor and associated sensor cable can be incorporated into the inhalation conduit 122. This conveniently eliminates the step of connecting a separate sensor and sensor wire during setup, as well as the step and time required to clean and store the reusable sensor.

[0037] In some embodiments, the sensor cartridge module 200 may enable power and data transmission between the heater base 102, the user end temperature sensor of the breath conduit 122, and the heater wire of the breath conduit 122. The chamber end connector of the breath conduit 122 may include an electrical connection for coupling with the corresponding connection on the sensor cartridge module 200. This provides a simple alternative example using a reusable sensor cable that provides an electrical connection between the user end temperature sensor and the heater base 102, and a reusable heater wire adapter cable that provides an electrical connection between the heater wire of the breath conduit 122 and the heater base 102. The user end temperature sensor and heater wire may be coupled to the electrical connection of the chamber end connector of the breath conduit 122 via wires incorporated into or extending parallel to the breath conduit 122.

[0038] If the exhalation conduit 124 includes a heating element, such as a heater wire, the heating element is generally powered via an electrical cable connecting the heating element to the heater base 102. To help simplify the setup, both ends of the electrical cable of the heating element may have plugs of the same design. Corresponding sockets may be located on the gas supply end connectors of the heater base 102 and the exhalation conduit 124. Either end of the electrical cable of the heating element can be coupled to either the gas supply end connector socket of the exhalation conduit 124 or the socket on the heater base 102. Therefore, the operator does not need to spend excessive time determining the correct orientation of the electrical cable of the heating element.

[0039] As described herein, a breathing circuit may include multiple conduits requiring multiple connections to a chamber 104, a user 128, and / or a gas supply device 130. The length of the conduits may make them difficult to handle and control during setup and increase the risk of accidentally dropping them on the ground and causing contamination. To improve handling and control during packaging and removal from setup, the circuit may be packaged in a loop configuration with a circuit sleeve 260 and held together, as shown in Figure 7A. In some embodiments, the sleeved conduits may be packaged in a protective plastic bag or the like. In some embodiments, the circuit sleeve 260 is made of cardboard or a thin plastic sheet, but other materials are also possible. The circuit sleeve 260 is looped around the conduit or wrapped around it and may be closed or held together by, for example, staples, tape, and / or adhesive, e.g., adhesive. In some embodiments, both ends of the sleeve 260 have interlocking features, e.g., interlocking slits or tabs and corresponding slots, to close the sleeve 260 around the conduit. The conduit can also be held in place in a loop configuration by tape, rubber bands, straps, etc.

[0040] The loop configuration conveniently allows the operator to hang the conduit over, for example, their forearm, heater base, or other object, leaving their hands completely free for other setup tasks. In some embodiments, as an alternative to placing the conduit on other hospital walls which could increase the risk of contamination, the circuit sleeve 260 includes a hole 262 which can be used to hang the loop conduit on a hook, for example, a hook used to hang a water bag or IV bag. The circuit sleeve 260 can be positioned over the conduit to conceal a selected conduit connector and help draw the operator's attention to a visible conduit connector, which may be the connector that needs to be connected first during the setup process. If the operator makes the appropriate connection with the visible conduit connector before removing the circuit sleeve 260 to expose the remaining connectors, the number of connections the operator can make is reduced, thereby making the connections easier and increasing the likelihood of correctly completing the setup. In some embodiments, the circuit sleeve 260 may include setup instructions in documentation and / or diagrams to help direct a preferred setup sequence for achieving a correct setup. The circuit sleeve 260 can also be positioned within the conduit to cover and / or isolate any sharp edges or corners (e.g., multiple parts of a connector), which can help reduce the possibility of damaging other circuit components, chambers, and / or packaging materials during shipping, etc.

[0041] To help reduce the possibility of incorrect connections during setup, the conduit connectors, chamber inlets 110 and outlets 112, gas supply output sections 132 and input sections 134, interface 128, and / or Y-pieces 127 may have varying diameters to help prevent incorrect connections. In some embodiments, some or all of the connections may include detail sections, such as rib detail sections, which allow for the connection of the correct components but prevent improper connections. For example, as shown in Figure 7B, the chamber outlet 112 or inhalation conduit port may include a rib detail section 250 surrounding the port 112. As shown in Figure 8, the chamber connector of the inhalation conduit may include a corresponding rib detail section 254 configured to engage with the rib detail section 250 of the chamber outlet port. The chamber inlet or supply conduit port may similarly include a circumferential rib detail section 252 which may engage with a corresponding rib detail section 256 on the chamber connector of the supply conduit. Other components, such as the user end connector of the inhalation tube, the user end connector of the exhalation tube, the gas supply end connector of the exhalation tube, and / or the gas supply end connector of the supply conduit, may include outwardly extending rib detail portions. In some configurations, different diameters can be used to make it difficult, if not impossible, to physically connect the wrong conduit to the wrong port. Furthermore, as described above, each end of each hose can be formed to have a unique configuration, which helps to reinforce the desired connection. Other configurations are also possible.

[0042] In some embodiments, various components may be color-coded to help guide the operator through the setup process from beginning to end and to help reduce the possibility of incorrect connections. For example, the chamber end connector of the supply conduit 120 and the inlet port 110 of the chamber 104 may be colored a first color, such as green, to indicate to the operator that these two components are intended to be connected. Similarly, the chamber end connector and chamber outlet port of the inhalation conduit may be color-coded a second color, such as blue. In a dual-limb circuit, the interface 126 and / or Y-piece 127 may be color-coded a third color, such as gray. In a single-limb circuit, the interface and the patient end connector of the inhalation conduit may be color-coded a fourth color, such as blue. The temperature and flow probe 206 of the sensor cartridge module 200 may be color-coded, for example, blue-green, along with the probe thin film 144. The adapter cable and plug for the heating element of the exhalation conduit may be color-matched to the gas supply end connector of the exhalation conduit and the socket of the heater base 102, for example, yellow. Components intended to be discarded during setup, such as the port caps 160, 170, the winder 166, the Y-piece cap, and / or the cap for the water spike 164, may be similarly colored, for example, translucent yellow or orange. Preferably, the cap for the water spike 164 is transparent, translucent, or otherwise constructed with slots, gaps, holes, etc., to indicate to the operator that the spike is positioned within the cap. The gas supply end connector of the supply conduit and the gas supply end connector of the exhalation conduit may be color-coded, for example, pink. In some embodiments, the conduits themselves can be distinguished by color. For example, the supply conduit 120 may be green, the inhalation conduit 122 may be blue, and the exhalation conduit 124 may be white. In some embodiments, the colors are selected so that operators with limited color perception (red-green color blindness) can still distinguish between different components.In some configurations, where connection order is prioritized, color-coding is used to avoid mixing connections of different colors (for example, red for the first connection, orange for the second, yellow for the third, green for the fourth, and blue for the fifth, etc., but not limited to these). Therefore, patterns can be used to guide proper progression and correct connections. In such configurations, LEDs, light, or color filters for light can be used to indicate the color of the connections on an electrical display, or the colors can simply be shown on a display screen. Naturally, other configurations and color palettes are also possible. In some embodiments, instructions and / or errors may refer to components that differ by color.

[0043] In addition to or instead of color-coding of various components, components may include corresponding symbols and / or strings indicating parts intended to be connected together. In some configurations, for example, a first connection may be labeled "1" or "A", and a second connection may be labeled "2" or "B". In some embodiments, one or more conduits may include labels indicating the correct direction of gas flowing through the conduit when in use. For example, the supply conduit 120 may include one or more arrows pointing from the end of the gas supply device 130 to the end of the chamber 104, and optionally a string of text such as "TO HUMIDIFIER". Similarly, the inhalation conduit 122 may include an arrow pointing from the chamber end to the user end and an optional string of text (e.g., "TO PATIENT"), and the exhalation conduit 124 may include an arrow pointing from the user end to the gas supply end and an optional string of text (e.g., "FROM PATIENT"). Any preferred combination or selection of shape, color, size, and / or symbol can be used to help the user make the desired connections and / or make the desired connections in the desired order. Furthermore, in some embodiments, connectors of different components may be configured so that they cannot be connected to each other. For example, but not limited to, an intake conduit may have a connector that connects only to the outlet of a humidifier. In such embodiments, the connectors reduce the possibility of improperly connecting components, as it is very difficult, if not impossible, to connect the components incorrectly.

[0044] In some embodiments, to further simplify the setup of the breathing circuit, the supply conduit 120, the inhalation conduit 122, and optionally the exhalation conduit 124 may be coupled to an integrated circuit, for example, as shown in Figure 9A. In some embodiments, the user ends of the inhalation conduit 122 and the exhalation conduit 124 are coupled to a Y-piece 127, which may be coupled to an interface 126 during use. The Y-piece 127 may be packaged with a disposable cap 180 covering the user end to help prevent contamination of the conduit and connections during setup. Electrical connectors and cables for temperature and flow sensors and heating elements may also be incorporated into the integrated circuit. In some embodiments, a chamber 104 may also be provided pre-coupled to the integrated circuit.

[0045] The conduits may be joined or connected, for example, by a mesh-type packaging material or sheath surrounding at least a portion of the conduit. In some configurations, multiple portions of the conduit joined to form multiple lumen structures may be connected with separate connecting means, including but not limited to mesh-type packaging materials, sheaths, belts, connectors, and clips. In some embodiments, the supply conduit 120 and the inhalation conduit 122 may be detachably connected to the exhalation conduit 124 using individual clips. This conveniently allows the exhalation conduit 124 to be pulled out from the supply conduit 120 and the inhalation conduit 122 and removed from the circuit when not needed.

[0046] In some embodiments, two or more conduits are constructed to be releasably connected together. In some embodiments, all of the conduits are constructed to be releasably connected together. A first conduit (e.g., an inhalation conduit) may include a first portion of either a hook material or a loop material, and a second conduit (e.g., an exhalation conduit) may include a second portion of either the hook material or the loop material. The first and second portions may be configured to be releasably connected together by a hook-and-loop, or hook-and-loop, fastener configuration. In addition to or instead of this, other releasable connection systems, such as a series of magnets, may be used, so that, for example, the two portions include magnets of opposite polarity. In another configuration, the outer walls of the inhalation conduit and the exhalation conduit may be corrugated, with the crests and troughs of the waves being mushroom-shaped. In such a configuration, for example, as shown in Figure 9B, for example, the crests of one conduit are configured to releasably snap into the troughs of the other conduit. In such a configuration, the conduits may be directly connected to each other. The size and shape of the peaks and valleys may be the same in both conduits, or they may be complementary, for example, but not limited to, reducing or eliminating the possibility of the two breathing conduits being connected together.

[0047] Integrated circuits conveniently reduce the number of connections required during setup and decrease the possibility of incorrect assembly. Furthermore, during the setup of traditional systems, various components may be placed on a table or bed for sorting and identification. Components may be misplaced or fall to the floor, thereby posing a risk of damage and / or contamination. Integrated circuits conveniently help to mitigate these problems. Integrated circuits with integrated electrical connectors and cables also allow various electrical connections to be made during setup, and the components to be connected are positioned very close to each other. In some embodiments, the heating element connector plug 182 of the breathing conduit may be located along the length of the breathing conduit 124 rather than to the connector of the gas supply device 130. The plug 182 may be positioned and configured to connect to a socket on the sensor cartridge module 200 or somewhere on the heater base 102, for example, to a socket on the front of the heater base 102, which can increase the visibility and accessibility of the socket. In such embodiments, when the exhalation tube 124 and / or chamber 104 are connected to the heater base 102, the plug 182 can be automatically connected to the sensor cartridge module 200.

[0048] Several features may help improve the ergonomics of the humidification system 100. For example, the socket of the gas supply end connector of the exhalation conduit may be oriented at an angle of, for example, about 45° from the plane defined by the end of the conduit. This angle may increase the visibility of the socket when the exhalation conduit 124 is connected to either a horizontal or vertically oriented port of the gas supply device 130. This angle may also help reduce the possibility that the socket will be obstructed by other components or equipment, making setup more difficult. The socket of the heater base 102 may be positioned on the front of the heater base 102 to increase visibility and ease of access compared to positioning the socket on, for example, the side of the heater base 102 or somewhere else.

[0049] In some embodiments, the end connectors of the gas supply device 130 for the exhalation conduit 124 and / or the end connector of the gas supply device 130 for the supply conduit 120 may have an L-shape. For example, the angle of the connector may be about 120°. The L-shape is convenient because it allows the operator to determine the orientation of the exhalation conduit 124 and / or the supply conduit 120 to and from the gas supply device 130, so that the conduit does not obstruct the display of other system components, such as the heater base 102. One or all of the connectors, for example, the end connectors of the gas supply device 130 for the exhalation conduit 124 and the supply conduit 120 and one or more of the user end connectors for the inhalation conduit 122 and the exhalation conduit 124, may include a grip detail to allow the operator to grasp the connector more easily and to perform twisting movements for inserting and removing the medical tapered connector. The grip detail may be particularly beneficial to the operator wearing surgical gloves.

[0050] In some embodiments, the heater base display 103 may be positioned on the upper surface of the spine 210 for easy viewing, as shown, for example, in Figure 11. In the illustrated embodiment, the upper surface of the spine 210, and therefore the display 103, is oriented at a certain angle. In particular, if, for example, the heater base 102 is positioned below the operator's horizontal line of sight, the angled orientation may conveniently improve or make it easier for the operator to view the display 103. In some embodiments, the upper surface and / or the display 103 may be oriented at an angle of about 22° from the vertical, but other angles are also possible. In some embodiments, one or both of the chamber end connectors of the supply conduit and the intake conduit may have an angled or L-shaped form. For example, in the embodiment of Figure 11, the chamber end connector 257 of the supply conduit has an L-shape and is therefore angled from the heater base 102. Angled or L-shaped configurations can, conveniently, prevent or deter the connectors and / or conduits from substantially obscuring the display 103, thereby enhancing the visibility of the display. In some embodiments, one or both of the chamber end connectors of the supply and intake conduits have an angle of about 112°, so that the connectors, when coupled to the port, may extend above the horizontal position at an angle of about 22° from the chamber port, although other angles are also possible. In some embodiments, the spine 210, the display 103, and / or one or both of the chamber end connectors can be configured such that one or more connectors are below the bottom edge of the upper surface of the display 103 and / or the spine 210, for example, one or more connectors extend below a line extending from the bottom edge of the display 103 perpendicular to the plane of the display and / or below a line extending from the bottom edge of the upper surface of the spine 210 perpendicular to the plane of the upper surface.

[0051] Additional features may assist the operator throughout the setup process. For example, the packaging of consumable parts for system 100 may include schematic diagrams showing setup procedures and / or step-by-step instructions. Figure 10 shows a sequential method for setting up humidification system 100. This method may include some or all of the following: placing the chamber 104 on the heater base 102; removing one or more port caps 160, 170; removing the spike 164 from the winder 166; unwinding the liquid conduit 118 and removing the winder 166 from the chamber 104; connecting the spike 164 to the liquid source; connecting the supply conduit 120 to the chamber inlet 110; connecting the supply conduit 120 to the gas supply device 130; connecting the intake conduit 122 to the chamber outlet 112; and connecting the intake conduit 122 to the Y-piece 127 or interface 126. This method further includes connecting the exhalation conduit 124 to the interface 126 or Y-piece 127 and the gas supply device 130.

[0052] While this disclosure has been described in relation to several embodiments and examples, those skilled in the art will understand that this disclosure extends beyond the specifically disclosed embodiments to other alternative embodiments and / or their uses, obvious modifications, and equivalents. It should be noted that while the “user” is used in the above description, the end user may be a patient, and that the devices described herein may be assembled, for example, by a nurse, physician, or other healthcare professional in a clinical or healthcare setting, and by the user / patient in home use. Furthermore, while several variations of the embodiments of this disclosure have been shown and described in detail, other modifications within the scope of this disclosure will be readily apparent to those skilled in the art. Various combinations or subcombinations of the specific features and aspects of the embodiments may be possible and still remain within the scope of this disclosure. It should be understood that various features and aspects of the embodiments of the disclosure may be combined or substituted for each other to form various modes of the embodiments of this disclosure. Furthermore, the dimensions of the various components provided herein are examples, and other dimensions may also be used. Therefore, the scope of this disclosure is not limited by the specific embodiments described above.

Claims

1. A heater base configured to support a humidification chamber configured to hold a certain amount of liquid, wherein the humidification chamber comprises an upper wall connected to at least one side wall, an inlet port extending through the upper wall, and an outlet port extending through the upper wall, wherein a bent-shaped supply conduit chamber end connector of a supply conduit is configured to connect to the inlet port, and / or a bent-shaped intake conduit chamber end connector of an intake conduit is configured to connect to the outlet port, The heater base, A heating plate configured to heat the liquid in the humidifying chamber, A spine extending upward from the heating plate and having an upper surface, the upper surface being angled with respect to the rest of the spine, the spine providing mounting positions for one or more sensors located within the inlet and / or outlet ports of the humidification chamber, A cooperative configuration is provided to guide the insertion of the humidification chamber onto the heater base, and is configured to receive a corresponding cooperative configuration on the upper wall of the humidification chamber. A display configured to provide information to an operator and / or receive input from an operator, the display being positioned on the upper surface of which the spine is angled, Equipped with, The aforementioned display is angled upwards, When the humidifying chamber is connected to the heater base, the inlet port and outlet port are positioned below the display. Heater base.

2. The heater base according to claim 1, wherein the upper surface of the spine and the display are angled at 22 degrees with respect to the vertical.

3. The heater base according to claim 1 or 2, wherein the cooperative configuration includes a female connector configured to engage with a male connector on the humidification chamber.

4. The heater base according to any one of claims 1 to 3, wherein the aforementioned cooperative configuration includes a recess.

5. The heater base according to claim 4, wherein the recess is located in the center of the heater base.

6. The heater base according to claim 1 or 2, wherein the cooperative configuration includes a male connector configured to engage with the female connector of the humidifying chamber.

7. It is a humidification system. The heater base according to any one of claims 1 to 6, The humidifying chamber, At least one side wall, An upper wall connected to at least one of the side walls, An inlet port extending through the aforementioned upper wall, An outlet port extending through the aforementioned upper wall, The humidifying chamber comprises, A humidification system equipped with [features / equipment].

8. The humidification system according to claim 7, further comprising the supply conduit, wherein the supply conduit includes a supply conduit chamber end connector configured to be coupled to the inlet port of the humidification chamber.

9. The humidification system according to claim 7 or 8, comprising the intake conduit, wherein the intake conduit end connector is configured to connect to the outlet port.

10. The humidification system according to any one of claims 7 to 9, wherein one or more of the intake conduit chamber end connectors and the supply conduit chamber end connectors have a bent shape.

11. The humidification system according to claim 10, wherein the curved shape of the intake conduit chamber end connector and / or the curved shape of the supply conduit chamber end connector prevents the connector from obscuring the display.

12. The humidification system according to claim 10 or 11, wherein a curved intake conduit chamber end connector and / or a curved supply conduit chamber end connector are located below the display.

13. The humidification system according to any one of claims 8 to 12, wherein the bent shape of the intake conduit chamber end connector and / or the bent shape of the supply conduit chamber end connector is located below the lower end of the upper surface of the spine.

14. The humidification system according to any one of claims 7 to 13, wherein at least one of the at least one side wall and the upper wall comprises a chamber cooperative configuration configured to receive a cooperative configuration on the heater base for guiding the insertion of the humidification chamber onto the heater base.

15. The humidification system according to claim 14, as claim 7 references claim 6, wherein the chamber cooperative configuration comprises a recess in the upper wall, the cooperative configuration of the heater base comprises a corresponding projection, and the chamber cooperative configuration and the cooperative configuration of the heater base engage via horizontal movement along the axis of sensor receiving apertures formed in the inlet port and the outlet port.

16. The humidification system according to any one of claims 7 to 15, wherein the heater base is provided with a rim edge, and the heating plate and the rim edge are configured to capture a protruding portion of the humidification chamber between them to hold the humidification chamber in a predetermined position.

17. The humidification system according to any one of claims 7 to 16, wherein the humidification chamber is connected to the heater base, and the bent-shaped intake conduit chamber end connector and / or the bent-shaped supply conduit chamber end connector are connected to the humidification chamber, the bent-shaped intake conduit chamber end connector and / or the bent-shaped supply conduit chamber end connector are below the bottom edge of the upper surface of the spine.

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