Oxygen inhalation device based on combination of Venturi device and heating humidifier

Abstract

The utility model relates to the technical field of medical accessories, in particular to an oxygen inhalation device based on a venturi device combined with a heating humidifier, which comprises an oxygen catheter, the venturi device, the heating humidifier and a breathing tube, one end of the oxygen catheter is connected with a central oxygen supply connector, and the other end of the oxygen catheter is connected with one end of the venturi device. The other end of the venturi device is connected with one end of the heating humidifier, the other end of the heating humidifier is connected with the breathing tube, and the other end of the breathing tube is communicated with the respiratory tract of the patient; an adjusting device is arranged on the venturi device and is used for adjusting the amount of the mixed air; according to the scheme, the adjusting device is arranged, so that the amount of air entering the oxygen supply system through the Venturi device can be adjusted, different patients can adjust the amount of mixed air according to own oxygen inhalation requirements, the application range of the simple high-flow oxygen inhalation device capable of adjusting the amount of mixed air is widened, and the application range of the simple high-flow oxygen inhalation device capable of adjusting the amount of mixed air is widened. And high-concentration oxygen supply for different patients is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of medical accessories, in particular to an oxygen absorption device based on a Venturi device combined with a heated humidifier. Background Art

[0002] Clinically, for some patients with severe breathing difficulties, such as patients with acute respiratory distress syndrome and acute exacerbation of chronic obstructive pulmonary disease, high-flow oxygen therapy devices are usually required to provide high-concentration oxygen to maintain the breathing of these patients. However, high-flow oxygen therapy devices are usually expensive and not all hospitals can afford to buy them. Therefore, in clinical practice, a simple high-flow oxygen inhalation device is often made by combining a Venturi oxygen therapy device with a heated humidifier to achieve the effect of a high-flow oxygen therapy device.

[0003] At present, there is a simple high-flow oxygen inhalation device on the market, such as the Chinese patent with application number CN202021228988.4. The simple high-flow oxygen inhalation device includes an oxygen tube for connecting to an oxygen supply device and a venturi tube arranged at the output end of the oxygen tube and connected to the oxygen tube. An air tube connected to the venturi tube is provided on the side of the venturi tube, a humidifying device is provided in the output end of the venturi tube, a breathing tube is provided on the humidifying device, and a nasal plug connector is provided at the output end of the breathing tube; air and oxygen are mixed through the venturi tube to achieve the effect of increasing the oxygen concentration.

[0004] However, although the simple high-flow oxygen inhalation device has many advantages as mentioned above, the inventors found that the simple high-flow oxygen inhalation device still has some shortcomings during actual use, specifically:

[0005] The venturi in the simple high-flow oxygen inhalation device has only a single function of mixing air and cannot adjust the amount of mixed air. Different patients may require different concentrations of oxygen. Thus, the use range of the simple high-flow oxygen inhalation device is relatively small and the oxygen supply concentration cannot be changed according to the needs of the patient.

[0006] Therefore, based on the above-mentioned shortcomings, there is an urgent need to design an oxygen inhalation device based on a Venturi device combined with a heated humidifier. Summary of the invention

[0007] The utility model aims to provide an oxygen inhalation device based on a venturi device combined with a heated humidifier in order to solve the above-mentioned problem that the air mixing amount of the current simple high-flow oxygen inhalation device cannot be adjusted during actual use.

[0008] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0009] An oxygen inhalation device based on a venturi device combined with a heated humidifier comprises an oxygen supply tube, a venturi device, a heated humidifier and a breathing tube, wherein one end of the oxygen supply tube is connected to a central oxygen supply connector, and the other end is connected to one end of the venturi device, the other end of the venturi device is connected to one end of the heated humidifier, the other end of the heated humidifier is connected to the breathing tube, and the other end of the breathing tube is connected to the patient's respiratory tract; an adjustment device is provided on the venturi device, and the adjustment device is used to adjust the amount of mixed air.

[0010] As a preferred technical solution of the present application, it also includes a tracheotomy mask, which is arranged at the neck and throat of the patient, and the tracheotomy mask is connected to the breathing tube to achieve communication between the breathing tube and the patient's respiratory tract.

[0011] As a preferred technical solution of the present application, the Venturi device includes a tube body, a first through hole is provided on the tube body, and the first through hole is used for air to pass through. The adjustment device includes an adjustment ring which is sleeved on the tube body and can rotate around the tube body, and the adjustment ring is provided with a second through hole, and the second through hole is used for air to pass through. The positions of the first through hole and the second through hole are adapted to each other.

[0012] As a preferred technical solution of the present application, an arrow is provided on the adjustment ring, and a scale bar is provided on the corresponding tube body. The arrow corresponds to different scale bars for indicating different amounts of mixed air.

[0013] As a preferred technical solution of the present application, the heated humidifier is also provided with an infusion pump, and the infusion pump is used to transport sterilized water into the heated humidifier.

[0014] As a preferred technical solution of the present application, it also includes a lifting device, the breathing tube is connected to the patient's tracheostomy tube to achieve communication between the breathing tube and the patient's respiratory tract, and the lifting device is used to support the breathing tube.

[0015] As a preferred technical solution of the present application, the lifting device comprises a first bracket, a second bracket and a third bracket, one end of the second bracket is rotatably connected to one end of the first bracket, the other end of the second bracket is rotatably connected to one end of the third bracket, the other end of the first bracket is rotatably connected to a lifting arm, the lifting arm is used to lift the breathing tube, and the other end of the third bracket is provided with a connecting device, the connecting device is used to connect the third bracket to an external object;

[0016] The first bracket, the second bracket and the third bracket have two states: folded and unfolded;

[0017] In the folded state, one side surface of the second bracket in the width direction is adjacent to one side surface of the first bracket in the width direction, and the other side surface of the second bracket in the width direction is adjacent to one side surface of the third bracket in the width direction;

[0018] In the unfolded state, one side surface of the second bracket in the length direction abuts against one side surface of the first bracket in the length direction, and the other side surface of the second bracket in the length direction abuts against one side surface of the third bracket in the length direction.

[0019] As a preferred technical solution of the present application, a locking device is provided between the second bracket and the first bracket, and between the second bracket and the third bracket, and the locking device enables the first bracket, the second bracket and the third bracket to remain in an expanded state.

[0020] As a preferred technical solution of the present application, the locking device includes a U-shaped groove arranged on the second bracket, a movable T-shaped screw arranged on the first bracket and the third bracket, a nut is threadedly connected to the T-shaped screw, and the U-shaped groove is adapted to the T-shaped screw.

[0021] As a preferred technical solution of the present application, a tube clamp is provided on the lifting arm, and the tube clamp is used to clamp the breathing tube. A fastener is provided on the first bracket, and the fastener is used to fix the lifting arm on the first bracket.

[0022] As a preferred technical solution of the present application, a receiving cavity is provided in the first bracket, a waist-shaped hole is provided on the lifting arm, the fastener can slide through the waist-shaped hole, and the lifting arm can slide and retract into the receiving cavity.

[0023] As a preferred technical solution of the present application, the connecting device comprises a fixed plate and a movable plate rotatably connected to the fixed plate, and the locking device is arranged between the fixed plate and the movable plate;

[0024] When the fixed plate and the movable plate are in a locked state, a channel is formed between the fixed plate and the movable plate, and the channel is used to clamp foreign objects.

[0025] As a preferred technical solution of the present application, the connection between the connecting device and the third bracket is detachable, and a limiting device is provided between the connecting device and the third bracket, and the limiting device is used to limit the movement of the connecting device relative to the third bracket.

[0026] As the preferred technical solution of the present application, the limiting device includes a pressure plate rotatably connected to the fixed plate, a limiting column is provided on one side of the pressure plate, and the other side is suspended, a torsion spring is provided between the pressure plate and the fixed plate, and the torsion spring puts the limiting column in a downwardly pressed state, a square hole is provided in the fixed plate, the size of the square hole is adapted to the size of the third bracket, a limiting hole is provided on the third bracket, and the limiting hole and the limiting column are adapted to limit the movement of the third bracket relative to the fixed plate.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] 1. In the scheme of the present application, by setting a regulating device, the amount of air entering the oxygen supply system through the Venturi device can be adjusted, and the oxygen concentration can be further adjusted. In this way, different patients can adjust the amount of mixed air according to their own oxygen inhalation needs, which increases the application scope of the simple high-flow oxygen inhalation device with adjustable mixed air volume of the present application, and is conducive to high-concentration oxygen supply for different patients; specifically, the oxygen output by the oxygen supply machine enters the Venturi device through the oxygen supply tube, and the air is mixed with oxygen through the Venturi device, thereby increasing the oxygen supply concentration. The high-concentration oxygen enters the heated humidifier to achieve heating and humidification, and then is delivered into the patient's body through the breathing tube, making the patient more comfortable when inhaling oxygen;

[0029] 2. When supplying oxygen to a patient with a tracheostomy tube, the breathing tube is usually long and is usually connected to a water collection cup for collecting condensed water. Under the combined effect of the weight of the breathing tube itself and the weight of the water collection cup that collects the condensed water, the part of the tracheostomy tube connected to the breathing tube and located outside the patient's body falls with the breathing tube, causing the tracheostomy tube to be unable to remain in a proper position, or even causing the tracheostomy tube to fall off, which is not conducive to the treatment of the patient. The setting of the lifting device reduces the risk of the breathing tube falling, which is conducive to keeping the tracheostomy tube in a proper position and facilitating oxygen supply treatment for the patient;

[0030] 3. In the scheme of the present application, when the lifting device is in the folded state, the first bracket, the second bracket and the third bracket are adjacent to each other, the structure is compact, the storage and transportation space is reduced, and it is convenient to store and carry; when the lifting device is in the unfolded state, it is connected to the existing instruments and equipment in the ward through the connecting device, which reduces the space occupied by the lifting bracket, making the environment around the bed more spacious and simple, which is conducive to the medical staff to carry out treatment and nursing work; the overall structure of the lifting device of the present application is simple and compact, occupies less space, is convenient to store, flexible to use, easy to operate, and suitable for promotion;

[0031] 4. The above structure is simple in structure, easy to operate and reliable in connection. In specific operation, the first bracket is rotated to make the side of the first bracket abut against the side of the second bracket, the T-shaped screw is rotated to make the T-shaped screw fall into the U-shaped groove, and then the nut is screwed to make the nut abut against the side of the U-shaped groove, so that the first bracket and the second bracket are always in the unfolded state. The same operation method is used to make the third bracket and the second bracket always in the unfolded state.

[0032] 5. The above structure has reliable connection and simple operation. During operation, the third bracket is inserted into the square hole of the fixed plate. As the third bracket is inserted, the limiting column moves upward. When the limiting hole on the third bracket moves to the position of the limiting column, the limiting column falls into the limiting hole under the action of the torsion spring, thereby limiting the third bracket. When the third bracket needs to be pulled out, the end of the pressure plate away from the limiting column is pressed, the limiting column is lifted upward, and the limiting column is separated from the limiting hole, and the third bracket can be pulled out, thereby improving the flexibility of the use of the lifting device of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic structural diagram of one embodiment of an oxygen absorption device based on a venturi device combined with a heated humidifier in the present application;

[0034] Figure 2 This is a schematic structural diagram of one embodiment of a tracheotomy mask of an oxygen inhalation device based on a venturi device combined with a heated humidifier in the present application;

[0035] Figure 3 This is a schematic structural diagram of one embodiment of an adjusting device of an oxygen absorption device based on a venturi device combined with a heated humidifier in the present application;

[0036] Figure 4 This is a structural schematic diagram of one embodiment of a lifting device of an oxygen absorption device based on a venturi device combined with a heated humidifier in the present application;

[0037] Figure 5 This is a structural schematic diagram of one embodiment of the present application in which a lifting device of an oxygen absorption device based on a venturi device combined with a heated humidifier is in an unfolded state;

[0038] Figure 6 This is a structural schematic diagram of one embodiment of the present application in which a lifting device of an oxygen absorption device based on a venturi device combined with a heated humidifier is in a folded state;

[0039] Figure 7 A partial cross-sectional structural schematic diagram of one embodiment of a lifting device of an oxygen absorption device based on a venturi device combined with a heated humidifier in the present application;

[0040] Figure 8 This is a structural schematic diagram of one embodiment of a locking device for a lifting device of an oxygen absorption device based on a venturi device combined with a heated humidifier in the present application;

[0041] Fig. 9 This is a structural schematic diagram of one embodiment of a connection device for a lifting device of an oxygen absorption device based on a venturi device combined with a heated humidifier in the present application;

[0042] Fig.10 This is a split structural schematic diagram of one embodiment of a connection device for a lifting device of an oxygen absorption device based on a Venturi device combined with a heated humidifier in the present application;

[0043] Fig.11 A schematic cross-sectional view of one embodiment of a limiting device of a lifting device of an oxygen absorption device based on a venturi device combined with a heated humidifier in the present application;

[0044] In the figure, the markings are: 1-oxygen delivery tube, 2-Venturi device, 3-heating humidifier, 4-breathing tube, 5-adjusting device, 21-tube body, 22-first through hole, 23-scale bar, 31-infusion device, 41-tracheotomy mask, 42-tracheotomy cannula, 51-adjusting ring, 52-second through hole, 53-arrow, 6-lifting device, 61-first bracket, 62-second bracket, 63-third bracket, 7-lifting device High arm, 8-locking device, 9-connecting device, 10-limiting device, 611-accommodating cavity, 631-limiting hole, 71-fastener, 72-tube clamp, 73-waist hole, 81-U-shaped groove, 82-T-type screw, 83-nut, 91-fixed plate, 92-movable plate, 93-channel, 911-square hole, 101-pressure plate, 102-limiting column, 103-torsion spring, 200-infusion stand. DETAILED DESCRIPTION

[0045] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0046] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0048] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0049] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0050] Example 1: See Figures 1 to 3 As shown,

[0051] The present embodiment provides an oxygen inhalation device based on a venturi device combined with a heated humidifier, comprising an oxygen supply tube 1, a venturi device 2, a heated humidifier 3 and a breathing tube 4, wherein one end of the oxygen supply tube 1 is connected to a central oxygen supply connector, and the other end is connected to one end of the venturi device 2, the other end of the venturi device 2 is connected to one end of the heated humidifier 3, the other end of the heated humidifier 3 is connected to the breathing tube 4, and the other end of the breathing tube 4 is connected to the patient's respiratory tract; an adjusting device 5 is provided on the venturi device 2, and the adjusting device 5 is used to adjust the amount of mixed air.

[0052] In this embodiment, by providing an adjustment device 5, the amount of air entering the oxygen supply system through the Venturi device 2 can be adjusted, and the oxygen concentration can be further adjusted. In this way, different patients can adjust the amount of mixed air according to their own oxygen inhalation needs, thereby increasing the application scope of the simple high-flow oxygen inhalation device with adjustable mixed air volume of the present application, which is conducive to high-concentration oxygen supply to different patients; specifically, the oxygen output by the oxygen supply machine enters the Venturi device 2 through the oxygen supply tube 1, and the air is mixed with oxygen through the Venturi device 2, thereby increasing the oxygen supply concentration, and the high-concentration oxygen enters the heated humidifier 3 to achieve heating and humidification, and then is delivered into the patient's body through the breathing tube 4, making the patient more comfortable when inhaling oxygen.

[0053] As a preferred embodiment, based on the above method, it further includes a tracheostomy mask 41, which is arranged at the patient's neck and throat, and is connected to the breathing tube 4 to achieve communication between the breathing tube 4 and the patient's respiratory tract.

[0054] For patients who need emergency oxygen supply, the tracheotomy mask 41 is used to conveniently and quickly provide oxygen to the patient, which is beneficial to the oxygen supply treatment of the patient.

[0055] As a preferred embodiment, on the basis of the above-mentioned method, further, the Venturi device 2 includes a tube body 21, a first through hole 22 is provided on the tube body 21, and the first through hole 22 is used for air to pass through. The adjusting device 5 includes an adjusting ring 51 which is sleeved on the tube body 21 and can rotate around the tube body 21, and a second through hole 52 is provided on the adjusting ring 51, and the second through hole 52 is used for air to pass through. The positions of the first through hole 22 and the second through hole 52 are adapted to each other.

[0056] By rotating the adjustment ring 51 to change the overlapping area between the second through hole 52 and the first through hole 22, the size of the air entering the venturi device 2 is changed, and the purpose of adjusting the amount of mixed air is achieved. The above structure is simple and the adjustment is reliable.

[0057] As a preferred embodiment, based on the above method, further, an arrow 53 is provided on the adjustment ring 51, corresponding to the scale bar 23 provided on the tube body 21, and the arrow 53 corresponds to different scale bars 23 for indicating different amounts of mixed air.

[0058] The setting of the scale bar 23 facilitates accurate control of the amount of mixed air. The patient can align the arrow 53 with different scale bars 23 by rotating the adjustment ring 51 according to his or her own oxygen absorption needs to achieve specific oxygen concentration requirements, thereby improving the accuracy of the oxygen supply demand and facilitating oxygen supply therapy for the patient.

[0059] As a preferred embodiment, on the basis of the above-mentioned embodiment, further, the heated humidifier 3 is provided with an infusion pump 31 , and the infusion pump 31 is used to transport sterilized water into the heated humidifier 3 .

[0060] The provision of the infusion set 31 facilitates the addition of sterile water into the heated humidifier 3 to reduce the number of germs in the breathing tube 4, which is beneficial to the respiratory treatment of the patient.

[0061] Example 2: See Figures 4 to 11 As shown,

[0062] The present embodiment differs from the first embodiment in that it further comprises a lifting device 6 , and the lifting device 6 is used to support the breathing tube 4 .

[0063] For patients with tracheostomy tube 42, when supplying oxygen, the breathing tube 4 is usually longer, and a water collecting cup for collecting condensed water is usually connected to the breathing tube 4. Under the combined effect of the gravity of the breathing tube 4 itself and the gravity of the water collecting cup collecting the condensed water, the part of the tracheostomy tube 42 connected to the breathing tube 4 and located outside the patient's body falls along with the breathing tube 4, resulting in the tracheostomy tube 42 being unable to remain in a suitable position, and may even cause the tracheostomy tube 42 to fall off, which is not conducive to the treatment of the patient. The provision of the lifting device 6 reduces the risk of the breathing tube 4 falling, is conducive to the tracheostomy tube 42 maintaining a suitable position, and is conducive to the oxygen supply treatment of the patient.

[0064] As a preferred embodiment, on the basis of the above manner, further, the lifting device 6 includes a first bracket 61, a second bracket 62 and a third bracket 63, one end of the second bracket 62 is rotatably connected to one end of the first bracket 61, the other end of the second bracket 62 is rotatably connected to one end of the third bracket 63, the other end of the first bracket 61 is rotatably connected to a lifting arm 7, the lifting arm 7 is used to lift the breathing tube 4, the other end of the third bracket 63 is provided with a connecting device 9, the connecting device 9 is used to connect the third bracket 63 to an external object;

[0065] The lifting device 6 has two states: folded and unfolded;

[0066] When the lifting device 6 is in a folded state, one side surface of the second bracket 62 in the width direction is adjacent to one side surface of the first bracket 61 in the width direction, and the other side surface of the second bracket 62 in the width direction is adjacent to one side surface of the third bracket 63 in the width direction;

[0067] When the lifting device 6 is in the unfolded state, one side surface of the second bracket 62 in the length direction abuts against one side surface of the first bracket 61 in the length direction, and the other side surface of the second bracket 62 in the length direction abuts against one side surface of the third bracket 63 in the length direction.

[0068] In this embodiment, when the lifting device 6 is in a folded state, the first bracket 61, the second bracket 62 and the third bracket 63 are adjacent to each other, with a compact structure, reducing the storage and transportation space, and facilitating storage and carrying; when the lifting device 6 is in an unfolded state, it is connected to existing instruments and equipment in the ward through the connecting device 8, such as connecting to the infusion stand 200, thereby reducing the space occupied by the lifting bracket, making the environment around the bed more spacious and simple, which is conducive to medical staff to carry out treatment and nursing work; the lifting device 6 of the present application has a simple and compact overall structure, occupies less space, is easy to store, flexible to use, easy to operate, and suitable for promotion.

[0069] As a preferred embodiment, on the basis of the above method, further, a locking device 8 is provided between the second bracket 62 and the first bracket 61, and between the second bracket 62 and the third bracket 63, and the locking device 8 enables the first bracket 61, the second bracket 62 and the third bracket 63 to remain in the unfolded state.

[0070] The setting of the locking device 8 prevents the first bracket 61, the second bracket 62 and the third bracket 63 from rotating and folding by themselves after being unfolded, thereby improving the stability of the lifting device 6 of the present application when in the unfolded state.

[0071] As a preferred embodiment, on the basis of the above method, further, the locking device 8 includes a U-shaped groove 81 arranged on the second bracket 62, and a movable T-shaped screw 82 arranged on the first bracket 61 and the third bracket 63, and a nut 83 is threadedly connected to the T-shaped screw 82, and the U-shaped groove 81 is adapted to the T-shaped screw 82.

[0072] The above structure is simple in structure, easy to operate and reliable in connection. During the specific operation, the first bracket 61 is rotated so that the side of the first bracket 61 abuts against the side of the second bracket 62, the T-screw 82 is rotated so that the T-screw 82 falls into the U-shaped groove 81, and then the nut 83 is screwed so that the nut 83 abuts against the side of the U-shaped groove 81. In this way, the first bracket 61 and the second bracket 62 are always in the expanded state. The same operation method can be used to ensure that the third bracket 63 and the second bracket 62 are always in the expanded state.

[0073] As a preferred embodiment, on the basis of the above-mentioned method, further, a tube clamp 72 is provided on the lifting arm 7, and the tube clamp 72 is used to clamp the breathing tube 4. A fastener 71 is provided on the first bracket 61, and the fastener 71 is used to fix the lifting arm 7 on the first bracket 61.

[0074] In this embodiment, the tube clamp 72 is configured to be C-shaped. When in use, the breathing tube 4 is pressed into the tube clamp 72 from the opening to clamp the breathing tube 4. The structure is simple and the clamping is reliable. The fastener 71 is a screw threadedly connected to the first bracket 61. During operation, the lifting arm 7 is rotated to a suitable angle, and the fastener 71 is tightened so that the first bracket 61 clamps the lifting arm 7 until the lifting arm 7 is fixed relative to the first bracket 61. When it is necessary to adjust the angle of the lifting arm 7 again, it is only necessary to loosen the fastener 71. The operation is simple and the fixation is reliable.

[0075] As a preferred embodiment, on the basis of the above-mentioned method, further, a accommodating cavity 611 is provided in the first bracket 61, and a waist-shaped hole 73 is provided on the lifting arm 7, and the fastener 71 can slide through the waist-shaped hole 73, and the lifting arm 7 can slide and retract into the accommodating cavity 611.

[0076] By adopting the above structure, the lifting arm 7 is retracted into the first bracket 61, reducing the space occupied by the lifting arm 7, which is conducive to the storage of the lifting device 6 of the present application; during operation, the fastener 71 is loosened, the lifting arm 7 is slid to extend or retract the lifting arm 7, and the fastener 71 is tightened to keep the lifting arm 7 stationary relative to the first bracket 61; the setting of the waist-shaped hole 73 prevents the lifting arm 7 from slipping out of the first bracket 61, and the fastener 71 enables the lifting arm 7 to maintain its position when it is retracted to the accommodating cavity 611, thereby improving the stability of the lifting device 6 of the present application in storage, transportation and storage.

[0077] As a preferred embodiment, on the basis of the above manner, further, the connecting device 9 comprises a fixed plate 91 and a movable plate 92 rotatably connected to the fixed plate 91, and the locking device 8 is provided between the fixed plate 91 and the movable plate 92;

[0078] When the fixed plate 91 and the movable plate 92 are in a locked state, a channel 93 is formed between the fixed plate 91 and the movable plate 92 , and the channel 93 is used to clamp foreign objects.

[0079] The above structure is adopted to facilitate the fixed connection or disconnection between the connecting device 9 and the external object. The structure is simple and the connection is reliable. During operation, the movable plate 92 is rotated so that the other end of the movable plate 92 rotates away from the fixed plate 91, and the external object is placed in the channel 93 between the movable plate 92 and the fixed plate 91. The movable plate 92 is rotated again so that the other end of the movable plate 92 rotates close to the fixed plate 91, and then the T-screw 82 is rotated so that the T-screw 82 falls into the U-shaped groove 81, and the nut 83 is screwed so that the nut 83 is against the side of the U-shaped groove 81, so as to achieve the fixation of the connecting device 9 and the external object. In this embodiment, the channel 93 is a round hole, and the external object is an infusion stand 200.

[0080] As a preferred embodiment, on the basis of the above-mentioned method, further, the connecting device 9 and the third bracket 63 are detachably connected, and a limiting device 10 is arranged between the connecting device 9 and the third bracket 63, and the limiting device 10 is used to limit the movement of the connecting device 9 relative to the third bracket 63.

[0081] The connecting device 9 and the third bracket 63 are arranged to be detachably connected. Such an arrangement improves the convenience of using the lifting device 6 of the present application. During operation, the connecting device 9 can be connected to an external object first, and after adjusting the appropriate position, the third bracket 63 can be connected to the connecting device 9, which can be used to lift the breathing tube 4. The setting of the limiting device 10 makes the connection between the third bracket 63 and the connecting device 9 more stable, thereby improving the stability of the lifting device 6 of the present application when in use.

[0082] As a preferred embodiment, on the basis of the above-mentioned method, further, the limiting device 10 includes a pressure plate 101 rotatably connected to the fixed plate 91, a limiting column 102 is provided on one side of the pressure plate 101, and the other side is suspended, a torsion spring 103 is provided between the pressure plate 101 and the fixed plate 91, and the torsion spring 103 makes the limiting column 102 in a downwardly pressed state, a square hole 911 is provided in the fixed plate 91, and the size of the square hole 911 is adapted to the size of the third bracket 63, and a limiting hole 631 is provided on the third bracket 63, and the limiting hole 631 is adapted to the limiting column 102 for limiting the movement of the third bracket 63 relative to the fixed plate 91.

[0083] The above structure is adopted, the connection is reliable and the operation is simple. During operation, the third bracket 63 is inserted into the square hole 911 of the fixing plate 91. As the third bracket 63 is inserted, the limiting column 102 moves upward. When the limiting hole 631 on the third bracket 63 moves to the position of the limiting column 102, under the action of the torsion spring 103, the limiting column 102 falls into the limiting hole 631, so as to limit the third bracket 63. When the third bracket 63 needs to be pulled out, the end of the pressing plate 101 is pressed away from the limiting column 102, the limiting column 102 is lifted upward, and the limiting column 102 is disengaged from the limiting hole 631, so that the third bracket 63 can be pulled out, thereby improving the flexibility of the lifting device 6 of the present application.

[0084] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. An oxygen inhalation device based on a venturi device combined with a heated humidifier, characterized in that: It comprises an oxygen supply tube, a venturi device, a heated humidifier and a breathing tube, one end of the oxygen supply tube is connected to a central oxygen supply connector, and the other end is connected to one end of the venturi device, the other end of the venturi device is connected to one end of the heated humidifier, the other end of the heated humidifier is connected to the breathing tube, and the other end of the breathing tube is connected to the patient's respiratory tract; the venturi device is provided with a regulating device, and the regulating device is used to adjust the amount of mixed air.

2. An oxygen absorption device based on a venturi device combined with a heated humidifier as claimed in claim 1, characterized in that: It also includes a tracheotomy mask, which is arranged at the neck and throat of the patient and is connected to the breathing tube to achieve communication between the breathing tube and the patient's respiratory tract.

3. An oxygen absorption device based on a venturi device combined with a heated humidifier as claimed in claim 2, characterized in that: The Venturi device includes a tube body, a first through hole is provided on the tube body, and the first through hole is used for air to pass through. The adjustment device includes an adjustment ring which is sleeved on the tube body and can rotate around the tube body, and the adjustment ring is provided with a second through hole, and the second through hole is used for air to pass through. The positions of the first through hole and the second through hole are adapted to each other.

4. An oxygen absorption device based on a venturi device combined with a heated humidifier as claimed in claim 3, characterized in that: The adjusting ring is provided with an arrow, and the corresponding tube body is provided with a scale bar. The arrow corresponds to different scale bars for indicating different amounts of mixed air.

5. An oxygen absorption device based on a venturi device combined with a heated humidifier as claimed in any one of claims 1 to 4, characterized in that: The heated humidifier is also provided with an infusion pump, which is used to transport sterilized water into the heated humidifier.

6. The oxygen absorption device based on a venturi device combined with a heated humidifier as claimed in claim 1, characterized in that: It also includes a lifting device, the breathing tube is connected to the patient's tracheostomy tube to achieve communication between the breathing tube and the patient's respiratory tract, and the lifting device is used to support the breathing tube; The lifting device comprises a first bracket, a second bracket and a third bracket, one end of the second bracket is rotatably connected to one end of the first bracket, the other end of the second bracket is rotatably connected to one end of the third bracket, the other end of the first bracket is rotatably connected to a lifting arm, the lifting arm is used to lift the breathing tube, and the other end of the third bracket is provided with a connecting device, the connecting device is used to connect the third bracket to an external object; The first bracket, the second bracket and the third bracket have two states: folded and unfolded; In the folded state, one side surface of the second bracket in the width direction is adjacent to one side surface of the first bracket in the width direction, and the other side surface of the second bracket in the width direction is adjacent to one side surface of the third bracket in the width direction; In the unfolded state, one side surface of the second bracket in the length direction abuts against one side surface of the first bracket in the length direction, and the other side surface of the second bracket in the length direction abuts against one side surface of the third bracket in the length direction.

7. An oxygen absorption device based on a venturi device combined with a heated humidifier as claimed in claim 6, characterized in that: A locking device is provided between the second bracket and the first bracket, and between the second bracket and the third bracket, and the locking device enables the first bracket, the second bracket and the third bracket to remain in an expanded state; the locking device includes a U-shaped groove provided on the second bracket, and a movable T-shaped screw provided on the first bracket and the third bracket, a nut is threadedly connected to the T-shaped screw, and the U-shaped groove is adapted to the T-shaped screw.

8. An oxygen inhalation device based on a venturi device combined with a heated humidifier as claimed in claim 7, characterized in that: The lifting arm is provided with a tube clamp for clamping the breathing tube, the first bracket is provided with a fastener for fixing the lifting arm on the first bracket; a accommodating cavity is provided in the first bracket, a waist-shaped hole is provided on the lifting arm, the fastener can slide through the waist-shaped hole, and the lifting arm can slide and retract into the accommodating cavity.

9. An oxygen inhalation device based on a venturi device combined with a heated humidifier as claimed in claim 8, characterized in that: The connecting device comprises a fixed plate and a movable plate rotatably connected to the fixed plate, and the locking device is arranged between the fixed plate and the movable plate; When the fixed plate and the movable plate are in a locked state, a channel is formed between the fixed plate and the movable plate, and the channel is used to clamp foreign objects.

10. An oxygen inhalation device based on a venturi device combined with a heated humidifier as claimed in claim 9, characterized in that: The connection device and the third bracket are detachably connected, and a limiting device is provided between the connection device and the third bracket, and the limiting device is used to limit the movement of the connection device relative to the third bracket; The limiting device includes a pressing plate rotatably connected to the fixed plate, a limiting column is provided on one side of the pressing plate, and the other side is suspended, a torsion spring is provided between the pressing plate and the fixed plate, and the torsion spring puts the limiting column in a downward pressing state, a square hole is provided in the fixed plate, and the size of the square hole is adapted to the size of the third bracket, a limiting hole is provided on the third bracket, and the limiting hole and the limiting column are adapted to limit the movement of the third bracket relative to the fixed plate.

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