A medium transfer device and a ventilation therapy device

Abstract

This invention discloses a media transfer device and a ventilation therapy device. The media transfer device includes a first passage, a second passage, a first reversing valve, a second reversing valve, and a reset mechanism. When the media transfer device is tilted or flipped, the liquid does not flow into other channels of the ventilation therapy device or the user end, while ensuring normal ventilation of the ventilation therapy device.

Description

Technical Field

[0001] This invention relates to the fields of media delivery and ventilation therapy equipment, and discloses a media delivery device and a ventilation therapy device. It solves the problem in existing ventilation therapy equipment where, when the humidifier tilts or flips, the liquid in the humidifier flows into the ventilation therapy equipment or to the user end, reducing the risk of machine damage or user discomfort. Background Technology

[0002] Humidifiers in ventilation therapy equipment are primarily used to increase the humidity of the gas delivered to patients. Gases used for medical purposes typically do not contain sufficient moisture; direct use can damage or irritate the user's respiratory or upper respiratory tract. They can also easily become dry and thickened by secretions from bypass patients, potentially leading to airway narrowing or even obstruction. Heating the water supplied to the humidifier increases its vapor output.

[0003] Current ventilation therapy equipment basically works by heating the liquid in the humidifier to evaporate a large amount of water vapor. The air is then driven by a fan to flow through the air inlet of the humidifier, where the water vapor mixes with the air to increase the humidity of the air. Finally, the air enters the user interface through the air outlet of the humidifier.

[0004] When the ventilation therapy equipment tilts or flips, the liquid in the humidifier will enter the other channels of the ventilation therapy equipment through the air inlet, causing water to enter the ventilation therapy equipment or even cause malfunction or damage, or enter the user end through the air outlet, causing user discomfort or even more adverse effects.

[0005] In existing technologies, to prevent the above-mentioned situations, complex structures are typically installed between the air inlet and outlet of the humidifier, or the volume of the humidifier is increased. This not only increases the manufacturing difficulty and cost of the humidifier but also makes cleaning more difficult for users. Even so, because the air inlet and outlet remain open when tilted or flipped, it is difficult to completely prevent the above-mentioned situations from occurring. Summary of the Invention

[0006] The purpose of this invention is to provide a medium transmission device that, when tilted or flipped, prevents liquid from flowing into other channels of the ventilation therapy device or the user end, while ensuring normal ventilation of the ventilation therapy device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A medium transmission device, the medium transmission device comprising a first passage, a second passage, a first reversing valve, a second reversing valve, and a reset mechanism;

[0009] The first passage includes a medium inlet, a first chamber, a medium outlet, a second chamber, a second medium inlet, a second medium outlet, and a medium transmission port; the medium inlet connects the first chamber and the medium input end, the medium transmission port connects the first chamber and the second chamber, and the medium outlet connects the second chamber and the medium output end;

[0010] The second passage includes a third chamber inlet, a third chamber, and a third chamber outlet;

[0011] The second outlet of the medium corresponds to the inlet of the third chamber, and the second inlet of the medium corresponds to the outlet of the third chamber; the first reversing valve and the second reversing valve are set at the medium transmission port, and the reset mechanism drives the opening and closing of the first reversing valve and the second reversing valve to open and close the medium transmission port.

[0012] When the first reversing valve and the second reversing valve are open, the first reversing valve covers and closes the second outlet of the medium, and the second reversing valve covers and closes the second inlet of the medium. At this time, the medium transmission port is open.

[0013] When the first and second directional valves are closed, they simultaneously cover and close the medium transmission port, while the second medium outlet and the second medium inlet are simultaneously opened. The medium enters the third chamber from the second medium outlet and the third chamber inlet, and then enters the second chamber from the third chamber outlet and the second medium inlet.

[0014] Furthermore, the reset mechanism includes a reset power device, a reset resistance device, and a reset mechanism trigger switch;

[0015] The reset power unit and the reset mechanism trigger switch are connected through a reset resistance device, and the reset resistance device drives the first reversing valve and the second reversing valve.

[0016] When the reset mechanism trigger switch is in the triggered state, the reset resistance device drives the first reversing valve and the second reversing valve to close.

[0017] When the reset mechanism trigger switch is in the non-triggered state, the reset resistance device drives the first and second directional valves to open.

[0018] The reset power unit drives the reset mechanism to return from the triggered state to the non-triggered state.

[0019] The reset resistance device includes a reset rack, a first directional valve rotor is provided at the lower end of the first directional valve, a second directional valve rotor is provided at the lower end of the second directional valve, and the reset rack is connected to the first directional valve rotor and the second directional valve rotor.

[0020] The reset power device includes a reset spring, one end of which is connected to the inner wall of the first passage, and the other end is connected to a reset resistance device.

[0021] Preferably, the medium transmission port is a single port or a dual port.

[0022] The present invention further provides a ventilation therapy device, which includes a main unit and the aforementioned media transmission device, wherein the main unit is connected to the media transmission device.

[0023] Optionally, the medium transport device can be part of a ventilation therapy device; the medium in this invention can be air or oxygen or other gases required by the patient.

[0024] In existing technologies, when a ventilation therapy device tilts or flips, the air inlet and outlet remain open, making it difficult to prevent water ingress. In extreme cases (such as picking up the device and rapidly flipping it), water can still enter the main unit. Furthermore, if the device continues to operate under these conditions, it may cause the user to choke on water. In this invention, when the main unit tilts or flips, i.e., when the main unit is in an abnormal position, the humidification air path in the media transmission device (such as a water tank) is closed, preventing water from entering the air inlet and outlet. Simultaneously, the breathing air path remains open, allowing the ventilation therapy device to be used normally.

[0025] In existing technologies, ventilation therapy devices mostly employ complex structures and larger volumes to prevent water ingress in abnormal situations. This increases manufacturing difficulty and cost, while also making cleaning more challenging for users. This invention, while storing the same volume of liquid, allows for a smaller water tank volume, a simpler structure, and easier cleaning for the user. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the medium transmission device of the present invention (trigger state);

[0027] Figure 2 This is a schematic diagram of the structure of the medium transmission device of the present invention (untriggered state);

[0028] Figure 3 This is a schematic diagram of the reset structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the media transmission device of the present invention when tilted;

[0030] Figure 5 This is a schematic diagram of the structure of the media transmission device of the present invention detached from the placement platform;

[0031] Figure 6 This is a schematic diagram of the inverted structure of the media transmission device of the present invention;

[0032] Figure 7 This is a schematic diagram of the side-mounted structure of the medium transmission device of the present invention;

[0033] Figure label:

[0034] 1. First passage; 11. Medium inlet; 11a. First chamber; 12. Medium outlet; 12a. Second chamber; 13. Second medium inlet; 14. Second medium outlet; 15. Medium transfer port;

[0035] 2. Second passageway; 21. Inlet to the third chamber; 21a. Third chamber; 22. Outlet to the third chamber;

[0036] 3. First directional valve; 31. First directional valve rotor;

[0037] 4. Second directional valve; 41. Rotor of the second directional valve;

[0038] 5. Reset mechanism; 51. Reset power unit; 52. Reset resistance device; 52a. Reset rack; 52b. Reset mechanism trigger switch;

[0039] 6. Place the platform. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0041] Example 1

[0042] like Figure 1-3 As shown, a media transfer device includes a first passage 1, a second passage 2, a first reversing valve 3, a second reversing valve 4, and a reset mechanism 5. The first passage 1 includes a media inlet 11, a first chamber 11a, a media outlet 12, a second chamber 12a, a second media inlet 13, a second media outlet 14, and a media transmission port 15. The media inlet 11 connects the first chamber 11a to the media input end, the media transmission port 15 connects the first chamber 11a to the second chamber 12a, and the media outlet 12 connects the second chamber 12a to the media output end. The first passage 1 also includes positions for installing the first reversing valve 13 and the second reversing valve 14. The reset mechanism 5 is connected to the first passage 1 via a first reversing valve rotor 31 on the first reversing valve 13 and a second reversing valve rotor 41 on the second reversing valve 14.

[0043] The reset mechanism 5 includes a reset power device 51, a reset resistance device 52, and a reset mechanism trigger switch 52b. The reset power device 51 can drive the reset mechanism trigger switch 52b to move between a first position and a second position. In the first position, the first reversing valve 3 and the second reversing valve 4 are simultaneously in close contact with the medium transmission port 15. In the second position, the first reversing valve 3 is in close contact with the second medium inlet 13, and the second reversing valve 4 is in close contact with the second medium outlet 14. When no external force is applied, the reset power device 51 is in the second position.

[0044] When the reset mechanism triggers the switch 52b to move, it drives the reset resistance device 52 to move, causing the reset rack 52a on the reset resistance device 52 to move, which in turn drives the first reversing valve rotor 31 and the second reversing valve rotor 41 connected to the reset rack 52a to rotate, changing the positions of the first reversing valve 3 and the second reversing valve 4.

[0045] When the reset mechanism trigger switch 52b contacts the placement platform 6, the reset power device 51 is under force, and the first reversing valve 3 and the second reversing valve 4 are in the first position. At this time, the second medium inlet 13 and the third chamber inlet 21, and the third chamber outlet 22 and the second medium outlet 14 are connected. The medium enters the first chamber 11a through the medium inlet 11 on the first passage 1, then enters the third chamber 21a through the second medium inlet 13 and the third chamber inlet 21, then enters the second chamber 12a through the third chamber outlet 22 and the second medium outlet 14, and finally is transmitted to the output end through the medium outlet 12.

[0046] When the reset mechanism trigger switch 52b is not in contact with the placement platform 6, the reset power unit 51 is in its initial state, and the first reversing valve 3 and the second reversing valve 4 are in their second positions. At this time, the second medium inlet 13 and the third chamber inlet 21, the third chamber outlet 22 and the second medium outlet 14 are closed. Gas enters the first chamber 11a through the medium inlet 11 on the first passage 1, then enters the second chamber 12a through the medium transmission port 15, and finally is transmitted to the output end through the medium outlet 12.

[0047] like Figure 4-7 As shown, when the media transfer device tilts, flips, or is inverted, the humidification gas path in the third chamber of the media transfer device is closed, preventing water from entering the inlet and outlet. Simultaneously, the respiratory gas path remains open, allowing the ventilation therapy device to be used normally.

[0048] Example 2

[0049] A ventilation therapy device includes a main unit and a media transmission device as described in Embodiment 1, wherein the main unit is connected to the media transmission device.

[0050] All aspects not described in detail in this invention can be covered using conventional technical knowledge in the field.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A medium transmission device, comprising a first passage, a second passage, a first reversing valve, a second reversing valve, a reset mechanism; the first passage comprises a medium inlet, a first chamber, a medium outlet, a second chamber, a second medium inlet, a second medium outlet, a medium transmission port; the medium inlet is connected with the first chamber and the medium input end, the medium transmission port is connected with the first chamber and the second chamber, and the medium outlet is connected with the second chamber and the medium output end; the second passage comprises a third chamber inlet, a third chamber, and a third chamber outlet; the second medium outlet corresponds to the third chamber inlet, and the second medium inlet corresponds to the third chamber outlet; the first reversing valve and the second reversing valve are arranged at the medium transmission port, and the reset mechanism drives the opening and closing of the first reversing valve and the second reversing valve to open and close the medium transmission port; when the first reversing valve and the second reversing valve are opened, the first reversing valve covers and closes the second medium outlet, and the second reversing valve covers and closes the second medium inlet, at this time the medium transmission port is opened; when the first reversing valve and the second reversing valve are closed, the first reversing valve and the second reversing valve simultaneously cover and close the medium transmission port, the second medium outlet and the second medium inlet are simultaneously opened, the medium enters the third chamber from the second medium outlet and the third chamber inlet, and then enters the second chamber from the third chamber outlet and the second medium inlet; the reset mechanism comprises a reset power device, a reset resistance device, and a reset mechanism trigger switch; the reset power device is connected with the reset mechanism trigger switch through the reset resistance device, and the reset resistance device drives the first reversing valve and the second reversing valve; when the reset mechanism trigger switch is in contact with the placement platform, the reset mechanism trigger switch is in an untriggered state; when the reset mechanism trigger switch is not in contact with the placement platform, the reset mechanism trigger switch is in a triggered state; when the reset mechanism trigger switch is in the triggered state, the reset resistance device drives the first reversing valve and the second reversing valve to be closed; when the reset mechanism trigger switch is in the untriggered state, the reset resistance device drives the first reversing valve and the second reversing valve to be opened; the reset power device drives the reset mechanism to return from the triggered state to the untriggered state; the reset power device comprises a reset spring, one end of the reset spring is connected with the inner wall of the first passage, and the other end of the reset spring is connected with the reset resistance device.

2. The media transport apparatus of claim 1, wherein, the reset resistance device comprises a reset rack, the first reversing valve is provided with a first reversing valve rotor at the lower end, the second reversing valve is provided with a second reversing valve rotor at the lower end, and the reset rack is connected with the first reversing valve rotor and the second reversing valve rotor.

3. The media transport apparatus of claim 1, wherein, the medium transmission port is a single port or a double port.

4. A ventilation therapy apparatus characterized by, the ventilation treatment device comprises a host and the medium transmission device according to any one of claims 1-3, and the medium transmission device is connected with the host.

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