Airway humidifying device

Abstract

The utility model relates to an airway humidifying device which comprises a catheter, the catheter comprises a spraying pipe, the first end of the spraying pipe is provided with an inlet for introducing liquid used for humidifying the airway of a patient, and the second end of the spraying pipe is provided with a nozzle allowing the liquid to enter the airway; the catheter is provided with a first end, the catheter is provided with an anti-splashing sleeve close to the first end, the anti-splashing sleeve comprises an inner cover and an outer cover, the tail end of the inner cover is connected with a tracheal catheter or a tracheotomy sleeve, the inner cover is further provided with a plurality of vent holes, and the outer cover is used for blocking gas or secreta ejected from the vent holes. The anti-splashing sleeve is arranged outside the spraying pipe, the function of humidifying the airway is achieved, secretions splashed out of the airway due to stimulation when liquid is sprayed can be blocked, cross infection is avoided, and a good protection effect is achieved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of medical devices, and in particular to an airway humidification device. Background Art

[0002] During normal breathing, the nasal cavity, pharyngeal cavity and respiratory tract all have a humidifying effect on the inhaled gas. In clinical work, the inhaled gas of patients with endotracheal intubation or tracheotomy directly enters the lower respiratory tract without humidification of the upper respiratory tract. Due to the lack of humidification of the oral and nasal cavities, sticky sputum is easily produced. The sputum of a considerable number of patients is easy to form sputum crusts and is difficult to suck out, and even blocks the airway, causing bacterial infection, etc., which is easy to cause complications.

[0003] Therefore, airway humidification is an important part of post-tracheotomy care. By humidifying the patient's airway, the sputum can be diluted, which is conducive to the patient's excretion of sputum. One of the existing airway humidification methods is to humidify the patient's airway with the help of an airway humidification tube. One end of the airway humidification tube is usually connected to an infusion pump, and the other end is connected to a tracheotomy catheter, and the liquid from the infusion pump is passed into the airway, thereby continuously humidifying the patient's airway.

[0004] For example, CN213589467U discloses an airway humidification infusion device suitable for a tracheostomy tube, comprising a tracheostomy tube, the inlet end of the tracheostomy tube being connected to the infusion device, the infusion device comprising an infusion bag, the infusion bag being connected to an extension tube, the extension tube being provided with an infusion regulating valve, the extension tube being connected to the infusion tube, a threaded joint being installed at the end of the infusion tube, the threaded joint being connected to the first end of a bent tube, and the bent tube being placed on the side wall of the sleeve.

[0005] Although the aforementioned or similar airway humidification tube / device can humidify the patient's airway, patients with endotracheal intubation or tracheotomy may spray gas or secretions when the airway is humidified, breathing or coughing. If these gas or secretions cannot be effectively blocked, cross infection may easily occur. However, current airway humidification devices cannot effectively block these gas or secretions. Utility Model Content

[0006] The purpose of the present disclosure is to provide an airway humidification device that can effectively block the patient's gas or secretions, thereby reducing the probability of cross infection in patients with endotracheal intubation or tracheotomy.

[0007] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0008] Provided is an airway humidification device, comprising a catheter, the catheter comprising a spray tube, a first end of the spray tube being provided with an inlet for introducing a liquid for humidifying the patient's airway, and a second end of the spray tube being provided with a nozzle for allowing the liquid to enter the airway;

[0009] The catheter is provided with a splash-proof sleeve near the first end, and the splash-proof sleeve includes an inner cover and an outer cover. The end of the inner cover is connected to a tracheal tube or a tracheotomy sleeve. The inner cover is also provided with a plurality of air diffusion holes, and the outer cover is used to block the gas or secretions ejected from the air diffusion holes.

[0010] Preferably, the structure of the nozzle is configured to enable the liquid to be sprayed into the air passage in a fan shape.

[0011] Preferably, the splash-proof sleeve is arranged 2 to 5 cm below the first end.

[0012] Preferably, the device further comprises a syringe for introducing the liquid for humidifying the patient's airway into the inlet.

[0013] Preferably, the inlet and the distal end of the injection syringe are detachably connected via threads.

[0014] Preferably, the catheter is a double-chamber pipe structure, wherein the pipe in one chamber is set as the spray pipe, and the pipe in the other chamber is set as a suction tube for suctioning sputum.

[0015] Preferably, the suction tube is provided with a negative pressure interface for connecting to a negative pressure forming mechanism at the end on the same side as the first end, and the other end of the suction tube is an open hole structure, and the device sucks out sputum in the airway through the negative pressure generated by the negative pressure forming mechanism.

[0016] Preferably, a negative pressure regulating hole for adjusting the size of the negative pressure is provided at the lower portion of the negative pressure interface, and the negative pressure is regulated by adjusting the size of the negative pressure regulating hole.

[0017] Preferably, the catheter is provided with a scale for marking the length, and the scale is used to adjust the length of the catheter according to different models of endotracheal tubes so that the end of the catheter exceeds the end of the endotracheal tube.

[0018] Preferably, the length of the catheter is 0.5 to 2 cm greater than that of the endotracheal tube.

[0019] The technical solution claimed in the utility model has achieved the following beneficial effects:

[0020] 1) A splash-proof sleeve is set outside the spray pipe, which not only realizes the airway humidification function, but also blocks the secretions splashed out of the airway due to stimulation when spraying liquid, avoids cross infection, and plays a good protective role.

[0021] 2) The catheter with a double-chamber pipeline structure can minimize the risk of cross-infection among patients while achieving independent spraying of airway humidification liquid and suction of sputum for intubated patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are merely embodiments of the present disclosure, and a person of ordinary skill in the art can obtain other drawings based on the provided drawings without paying any creative work.

[0023] Figure 1 This is a schematic structural diagram of one embodiment of an airway humidification device.

[0024] Figure 2 The figure is a schematic structural diagram of another embodiment of an airway humidification device.

[0025] Reference numerals:

[0026] 1- spray pipe; 2- inlet; 3- nozzle; 4- splash-proof sleeve; 5- inner cover; 6- outer cover; 7- air diffusion hole; 8- injection syringe; 9- suction tube; 10- negative pressure interface; 11- negative pressure adjustment hole; 12- scale. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and beneficial effects of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0028] Example 1

[0029] As attached Figure 1 As shown, the airway humidification device provided in this embodiment includes a catheter, which is used as a spray tube 1 for spraying liquid into the patient's airway.

[0030] In a preferred embodiment, the first end of the spray tube 1 is provided with an inlet 2 for introducing a liquid for humidifying the patient's airway, and the second end of the spray tube 1 is provided with a nozzle 3 for allowing the liquid to enter the airway. The structure of the nozzle 3 is preferably configured to enable the liquid to be sprayed into the airway in a fan shape, for example, the nozzle can be configured as a shower or a similar structure, so that the liquid can be evenly sprayed into the airway, thereby achieving a better humidification effect on the airway.

[0031] In an exemplary embodiment, the airway humidification device in this embodiment further includes an injection syringe 8, which is used to introduce liquid for humidifying the patient's airway into the inlet 2. The inlet 2 and the end of the injection syringe 8 are preferably detachably connected by a thread. The rotational connection of the thread can greatly increase the connection firmness and spraying stability between the spray tube 1 and the injection syringe 8, and reduce the detachment between the two caused by the spraying pressure.

[0032] In a more preferred embodiment, the catheter is further provided with a splash-proof sleeve 4 at the outer wall near the first end of the spray pipe 1, and the splash-proof sleeve 4 is preferably provided 2 to 5 cm below the first end. The splash-proof sleeve comprises an inner cover 5 and an outer cover 6 sleeved outside the inner cover 5, an annular gap is left between the inner cover 5 and the outer cover 6, the end of the inner cover 5 is connected to a tracheal tube or a tracheotomy sleeve, and the inner cover 5 is further provided with a plurality of air diffusion holes 7. The outer cover 6 is used to block the gas or secretions ejected from the air diffusion holes 7, which protects the patient and reduces cross infection. The end of the outer cover 6 on the same side as the second end of the spray pipe 1 is an open structure.

[0033] In a preferred embodiment, the length of the spray tube 1 is 0.5 to 2 cm longer than the tracheal tube, so as to spray the liquid directly into the airway.

[0034] In this embodiment, a splash-proof sleeve is arranged outside the spray pipe, which not only realizes the function of humidifying the airway, but also can block the secretions splashed out of the airway due to stimulation when spraying liquid, or block the gas or secretions splashed out when the patient breathes or coughs, thereby avoiding cross infection and playing a good protective role.

[0035] Example 2

[0036] As attached Figure 2 As shown, the airway humidification device provided in this embodiment includes a catheter, which is configured as a double-chamber pipeline structure, wherein the pipeline of one chamber is configured as a spraying tube 1 for spraying liquid into the patient's airway, and the pipeline of the other chamber is configured as a suction tube 9 for suctioning sputum.

[0037] In a preferred embodiment, the first end of the spray tube 1 is provided with an inlet 2 for introducing a liquid for humidifying the patient's airway, and the second end of the spray tube 1 is provided with a nozzle 3 for allowing the liquid to enter the airway. The structure of the nozzle 3 is preferably configured to enable the liquid to be sprayed into the airway in a fan shape, for example, the nozzle can be configured as a shower or a similar structure, so that the liquid can be evenly sprayed into the airway, thereby achieving a better humidification effect on the airway.

[0038] In an exemplary embodiment, the airway humidification device in this embodiment further includes an injection syringe 8, which is used to introduce liquid for humidifying the patient's airway into the inlet 2. The inlet 2 and the end of the injection syringe 8 are preferably detachably connected by a thread. The rotational connection of the thread can greatly increase the connection firmness and spraying stability between the spraying tube 1 and the injection syringe 8, and reduce the detachment between the two caused by the spraying pressure.

[0039] In a preferred embodiment, the suction tube 9 is provided with a negative pressure interface 10 for connecting to a negative pressure forming mechanism at the end on the same side as the first end of the spray tube 1, and the other end of the suction tube 9 is an open hole structure, and the airway humidification device sucks out the sputum in the airway through the negative pressure generated by the negative pressure forming mechanism. The negative pressure forming mechanism can be any existing device capable of forming negative pressure, for example, a central wall suction negative pressure or an electric negative pressure can be selected to connect to the negative pressure interface 10.

[0040] The negative pressure interface 10 preferably has a negative pressure regulating hole 11 at the bottom thereof for adjusting the negative pressure. During the negative pressure formation process, the negative pressure regulating hole 11 can be pressed or closed by fingers to adjust the negative pressure, thereby regulating the negative pressure. By adjusting the negative pressure, the sputum in the patient's airway can be sucked out with appropriate pressure.

[0041] In a more preferred embodiment, the catheter is further provided with a splash-proof sleeve 4 at the outer wall near the first end of the spray pipe 1, and the splash-proof sleeve 4 is preferably provided 2 to 5 cm below the first end. The splash-proof sleeve comprises an inner cover 5 and an outer cover 6 sleeved outside the inner cover 5, an annular gap is left between the inner cover 5 and the outer cover 6, the end of the inner cover 5 is connected to a tracheal tube or a tracheotomy sleeve, and the inner cover 5 is further provided with a plurality of air diffusion holes 7. The outer cover 6 is used to block the gas or secretions ejected from the air diffusion holes 7, which protects the patient and reduces cross infection. The end of the outer cover 6 on the same side as the second end of the spray pipe 1 is an open structure.

[0042] In a preferred solution, the spray pipe 1 and the suction pipe 9 can be arranged in a Y-shaped bifurcated structure at the upper part where they are connected to the splash-proof sleeve 4 to improve the flexibility of operation.

[0043] In a more preferred solution, the catheter is further provided with a scale 12 for marking the length, and the scale 12 is used to adjust the length of the catheter according to different models of tracheal catheters, so that the end of the catheter exceeds the end of the tracheal catheter, thereby implementing the best effect of liquid spraying and diffusion, and facilitating the diffusion of liquid from the main trachea to the lungs. In an exemplary solution, the scale 12 can be set as a color scale, and the scale is preferably set in the range of 30 to 45 cm from the end of the catheter, and the scale is marked with a specific color. The length of the catheter is longer than the length of the tracheal catheter, which is conducive to the end of the catheter, i.e., the end of the spray tube and the end of the suction tube being inserted into the tracheal catheter. The part that exceeds the end of the tracheal tube and enters the main trachea of ​​the human body is not too long, thereby avoiding irritation of the human tracheal mucosa to cause damage or adherence to the tracheal wall, which is conducive to spraying.

[0044] In a preferred embodiment, the length of the spray tube 1 is 0.5 to 2 cm longer than the tracheal tube, so as to spray the liquid directly into the airway.

[0045] The catheter with a double-chamber pipeline structure in this embodiment can minimize the risk of cross-infection among patients while achieving independent spraying of airway humidification liquid and sputum suction for intubated patients.

[0046] The embodiments and application examples described above are merely illustrative descriptions of the present disclosure and are not intended to limit the scope of the present disclosure. Without departing from the design spirit of the present disclosure, various modifications and improvements made to the technical solutions of the present disclosure by ordinary technicians in this field should all fall within the protection scope determined by the present disclosure.

Claims

1. An airway humidification device, characterized in that: The catheter comprises a spray tube (1), a first end of the spray tube (1) is provided with an inlet (2) for introducing a liquid for humidifying the patient's airway, and a second end of the spray tube (1) is provided with a nozzle (3) for allowing the liquid to enter the airway; The catheter is provided with a splash-proof sleeve (4) near the first end, the splash-proof sleeve comprising an inner cover (5) and an outer cover (6), the end of the inner cover (5) being connected to a tracheal tube or a tracheotomy sleeve, the inner cover (5) being further provided with a plurality of air diffusion holes (7), an annular gap being left between the inner cover (5) and the outer cover (6), the outer cover (6) being used to block the gas or secretions ejected from the air diffusion holes (7).

2. The airway humidification device according to claim 1, characterized in that: The structure of the nozzle (3) is arranged to enable the liquid to be sprayed into the air passage in a fan shape.

3. The airway humidification device according to claim 1, characterized in that: The splash-proof sleeve (4) is arranged 2 to 5 cm below the first end.

4. The airway humidification device according to claim 1, characterized in that: The device further comprises an injection syringe (8), wherein the injection syringe (8) is used to introduce the liquid for humidifying the patient's airway into the inlet (2).

5. The airway humidification device according to claim 4, characterized in that: The inlet (2) and the end of the injection syringe (8) are detachably connected via threads.

6. The airway humidification device according to any one of claims 1 to 5, characterized in that: The catheter is a double-chamber pipe structure, wherein the pipe in one chamber is configured as the spray pipe (1), and the pipe in the other chamber is configured as a suction pipe (9) for suctioning sputum.

7. The airway humidification device according to claim 6, characterized in that: The suction tube (9) is provided with a negative pressure interface (10) for connecting to a negative pressure generating mechanism at the end on the same side as the first end, and the other end of the suction tube (9) is an open-hole structure. The device sucks out sputum in the airway through the negative pressure generated by the negative pressure generating mechanism.

8. The airway humidification device according to claim 7, characterized in that: A negative pressure regulating hole (11) for adjusting the size of the negative pressure is provided at the lower part of the negative pressure interface (10), and the negative pressure is regulated by adjusting the size of the negative pressure regulating hole (11).

9. The airway humidification device according to claim 6, characterized in that: The catheter is provided with a scale (12) for marking the length, and the scale (12) is used to adjust the length of the catheter according to different models of tracheal catheters so that the end of the catheter exceeds the end of the tracheal catheter.

10. The airway humidification device according to claim 6, characterized in that: The length of the catheter is 0.5-2 cm greater than that of the endotracheal catheter.

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