Breathing machine extension tube with alarm drainage device
By installing an alarm component in the drainage device of the ventilator extension tube, the alarm can be triggered by buoyancy or gravity, which solves the problem of not being able to promptly alert patients to abnormal condensation, reduces patient harm and the workload of medical staff, and ensures the normal operation of the ventilator.
Patent Information
- Application Number
- CN202422617584.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The existing drainage devices in ventilator extension tubes cannot promptly alert to condensate abnormalities, leading to condensate backflow that can harm patients and increase the workload of medical staff.
An alarm component is installed in the drainage device. The alarm is triggered by a contact element under the action of buoyancy or gravity, which can promptly remind you of abnormal situations, such as when the drainage bottle is tilted or when the condensate is full.
It enables timely alerts and handling of abnormal condensate levels, reducing patient harm, alleviating the workload of medical staff, and ensuring the normal operation of ventilators.
Smart Images

Figure CN223760194U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of medical devices, specifically relating to a ventilator extension tube with an alarm drainage device. Background Technology
[0002] In modern clinical medicine, ventilators, as an effective means of artificially replacing spontaneous ventilation, are widely used for respiratory failure caused by various reasons, anesthetic respiratory management during major surgery, respiratory support therapy, and emergency resuscitation, occupying a very important position in the field of modern medicine. During ventilator-assisted breathing, to ensure that the air-oxygen mixture inhaled by the patient has a certain humidity and temperature, a humidifier is added to the ventilator. This humidifier is used to fill the breathing tubing with humidified air at a certain temperature, which is then delivered into the patient's airway along with the air-oxygen mixture.
[0003] However, the humidified air blown out by the humidifier is relatively warm. When this airflow passes through the ventilator extension tube, if the room temperature is low, a temperature difference forms between the inside and outside of the tube, causing water droplets to form inside the tube – this is condensation. If this condensation enters the airway, it can harm the patient. For example, the condensation can create flow velocity in the circuit, increasing the risk of false ventilator triggering and patient-ventilator asynchrony. In cases of excessive airflow, the condensation may even flow back into the airway, causing suffocation. Therefore, it is essential to collect and treat the condensation.
[0004] In existing technologies, a drainage device is designed on the ventilator tubing to collect condensate, and the stored condensate is periodically disposed of by medical staff. However, the following problems exist: because medical staff cannot stay by the patient's side to monitor the use of the drainage device, if the patient accidentally knocks over the drainage bottle or the drainage bottle is tilted for other reasons, or if the medical staff are too busy or forget to deal with the condensate in the drainage bottle in time, the condensate can easily flow back, causing aspiration pneumonia and other irreversible damage to the patient. Utility Model Content
[0005] The purpose of this invention is to overcome the defects of the existing technology and provide a ventilator extension tube with an alarm drainage device. When the condensate in the drainage device is abnormal, it can promptly remind and handle the situation, thus avoiding harm to the user.
[0006] The objective of this utility model is achieved through the following technical solution:
[0007] A ventilator extension tube with an alarm drainage device includes: an extension tube, a drainage bottle, and a drainage assembly. One bottom side of the extension tube is sealed and connected to the drainage bottle, and the drainage assembly is located at the bottom of the drainage bottle. An alarm assembly is installed in the drainage bottle, and the alarm assembly includes:
[0008] An alarm button, one end of which is sealed and installed inside the drainage bottle;
[0009] An alarm is connected to the other end of the alarm button, and the alarm is located on the outside of the drainage bottle;
[0010] The contact element is movably mounted in the drainage bottle via a connector. The density of the contact element is less than that of the condensate. When the contact element floats up, it triggers the alarm button, and the alarm is activated.
[0011] Preferably, the drainage bottle includes a bottom cap and a drainage bottle body, with the bottom cap connected to the bottom of the drainage bottle body.
[0012] Preferably, the body of the drainage bottle has a bottle mouth, and the inner diameter gradually increases from the bottle mouth to the middle of the bottle body.
[0013] Preferably, the end of the alarm button furthest from the alarm is wedge-shaped.
[0014] Preferably, the surface of the wedge-shaped surface is provided with protrusions at uniform intervals.
[0015] Preferably, the contact element is a sphere.
[0016] Preferably, the drainage assembly includes a drain pipe and a switch valve, one end of the drain pipe is connected to the drainage bottle, and the drain pipe is provided with a switch valve that can seal or open it.
[0017] Due to the adoption of the above technical solution, this utility model has the following advantages:
[0018] This invention relates to a ventilator extension tube with an alarm drainage device. The extension tube contains a drainage bottle to collect condensate generated during ventilator operation. An alarm component is installed in the drainage bottle. When the bottle tip over or becomes full of condensate, a contact element moves towards the alarm button under buoyancy, triggering an alarm sound. This allows for timely intervention by relevant personnel, thus solving the problem of delayed alerts and potential harm to users when condensate levels in the drainage bottle become abnormal. It also reduces the workload of medical staff. When the drainage bottle is full, a drainage component drains the condensate, ensuring the normal operation of the ventilator. Attached Figure Description
[0019] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.
[0020] Figure 1 This is a schematic diagram of the structure of a ventilator extension tube with an alarm drainage device according to the present invention;
[0021] Figure 2 This is a schematic diagram of the alarm component.
[0022] Figure label:
[0023] 1-Extension pipe, 11-Extension pipe body, 12-Tee pipe,
[0024] 2-Drainage bottle, 21-Bottle mouth, 22-Bottle bottom cap, 23-Drainage bottle body, 24-Conical cavity,
[0025] 3-Drainage assembly, 31-Drain pipe, 32-Switch valve,
[0026] 4-Alarm component, 41-Touch component, 42-Connector, 43-Alarm device, 44-Alarm button, 45-Raised dot. Detailed Implementation
[0027] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.
[0028] Please see Figure 1 and Figure 2 A ventilator extension tube with an alarm drainage device includes: an extension tube 1, a drainage bottle 2, a drainage assembly 3, and an alarm assembly 4.
[0029] One end of the extension tube 1 is sealed and connected to the drainage bottle 2. A drainage assembly 3 is installed at the bottom of the drainage bottle 2. An alarm assembly 4 is installed inside the drainage bottle 2, comprising: one end of an alarm button 44 sealed and installed inside the drainage bottle 2; an alarm 43 connected to the other end of the alarm button 44, located on the outside of the drainage bottle 2; and a contact element 41 movably installed inside the drainage bottle 2 via a connector 42. The density of the contact element 41 is less than that of condensed water. The contact element 41 floats up and triggers the alarm button 44, activating the alarm 43. Specifically, one end of the extension tube 1 is connected to the ventilator, and the other end is used by the user. The drainage bottle 2 is a transparent water collection cup, and the contact element 41 can move freely within it. The extension tube 1 includes an extension tube body 11 and a three-way tube 12. Two sets of extension tube bodies 11 are sealed to two openings of the three-way tube 12. The inner wall of the other opening of the three-way tube 12 is provided with a first internal thread. The drainage bottle 2 is provided with a first external thread that mates with the first internal thread. A first sealing ring is provided between the pitches of the first external thread. The extension tube 1 and the drainage bottle 2 are connected by a threaded seal. Preferably, the contact element 41 is made of rubber with a density less than that of condensed water, allowing the contact element 41 to rise with the water surface and always float on the water surface. The contact element 41 is a sphere. One end of the connector 42 is glued and fixed to the inner wall of the drainage bottle 2, and the other end is glued and fixed to the surface of the contact element 41. Preferably, the alarm 43 and alarm button 44 adopt existing technology. The drainage bottle 2 is provided with a mounting hole, and the alarm button 44 passes through the mounting hole, allowing the alarm 43 to protrude from the drainage bottle 2. The alarm 43 and alarm button 44 are sealed and fixed with glue. After assembly, pressing the alarm button 44 triggers the alarm 43 to operate.
[0030] This utility model discloses a ventilator extension tube with an alarm drainage device. An alarm component 4 is installed in the drainage bottle 2. When the ventilator is working, the drainage bottle 2 collects condensate. When the drainage bottle 2 is tilted or when the drainage bottle 2 is full of condensate, the contact element 41 moves towards the alarm 43 under the action of buoyancy and presses the alarm button 44. The alarm 43 then sounds an alarm. This solves the problem of not being able to promptly alert and handle abnormal condensate in the drainage bottle 2, which could cause harm to the user, and reduces the workload of medical staff or family members.
[0031] Furthermore, the drainage bottle 2 includes a bottom cap 22 and a drainage bottle body 23, with the bottom cap 22 connected to the bottom of the drainage bottle body 23. Specifically, the drainage assembly 3 is installed on the bottom cap 22, and the alarm assembly 4 is installed in the drainage bottle body 23. The drainage bottle body 23 has a second external thread on its outer side away from the bottle opening 21, and the inner wall of the bottom cap 22 has a second internal thread that mates with the second external thread. A second sealing ring is provided at the pitch of the second external thread. The outer diameter of the bottom cap 22 is larger than the outer diameter of the drainage bottle body 23, and a heavy bottom cap 22 is used. With this structure, when the drainage bottle 2 is tilted, because the outer diameter of the bottom cap 22 is larger than the outer diameter of the drainage bottle body 23, water moves towards the bottle opening 21, and the contact element 41, under the action of gravity and moving with the water towards the bottle opening 21, triggers the alarm 43. Because the bottom cap 22 is relatively heavy, when the drainage bottle 2 is suspended from the extension tube 1, under the influence of the weight of the bottom cap 22, the drainage bottle 2 maintains a position where the bottle opening 21 faces upwards and the bottom cap 22 faces downwards, even when there is no external force or the external force is relatively weak. This ensures that the drainage bottle 2 is at the bottom of the extension tube 1, and the condensate is collected in the drainage bottle 2. When it is necessary to clean the drainage bottle 2, the contact element 41, or replace the alarm component 4, simply rotate and remove the bottom cap 22 from the drainage bottle body 23.
[0032] Furthermore, the body of the drainage bottle (23) is provided with a bottle mouth (21), and the inner diameter of the bottle gradually increases from the bottle mouth 21 to the inner diameter of the bottle body. Specifically, the size of the touch component 41 is slightly larger than the inner diameter of the bottle mouth 21. With this structure, when only a small amount of water is poured into the bottle mouth 21, the touch component 41 will touch the alarm component 4 along with the water, thereby improving the sensitivity of the alarm.
[0033] Please see Figure 2 Furthermore, the end of the alarm button 44 furthest from the alarm 43 is a wedge-shaped surface. This structure facilitates the gradual contact of the touch element 41 with the alarm button 44. Specifically, the wedge-shaped surface is provided with evenly spaced protrusions 45 to increase the friction between the touch element 41 and the alarm button 44 and improve the sensitivity of the alarm.
[0034] Please see Figure 1 Furthermore, the drainage assembly 3 includes a drain pipe 31 and a switch valve 32. One end of the drain pipe 31 is connected to the drainage bottle 2, and the drain pipe 31 is equipped with a switch valve 32 that can seal or open it. Specifically, the bottle bottom cap 22 is equipped with a drain pipe 31 with a switch valve 32. The drain pipe 31 is integrally formed with the bottle bottom cap 22, or the drain pipe 31 is threaded to the bottle bottom cap 22. For condensate from patients without infectious diseases, the switch valve 32 can be opened directly to drain the condensate. Specifically, the switch valve 32 is a manual ball valve.
[0035] The beneficial effects of this utility model are:
[0036] This utility model discloses a ventilator extension tube with an alarm drainage device. Under the influence of the size and weight of the bottle bottom cap 22, and with an alarm component 4 installed in the drainage bottle 2, when the ventilator is working, condensate continuously accumulates. The drainage bottle 2 is at the bottom of the extension tube 1. Under the action of buoyancy, the contact member 41 moves towards the alarm 43 and abuts the alarm button 44, causing the alarm 43 to sound. This solves the problem of not being able to promptly alert and handle abnormal condensate in the drainage bottle 2, thus causing harm to the user. It also reduces the workload of medical staff or family members. The upper end of the drainage bottle 2 is a conical cavity 24, and one end of the alarm button 44 adopts a wedge-shaped surface with a protrusion 45 to improve the sensitivity of the alarm.
[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.
Claims
1. A breathing machine extension tube with an alarm drainage device, comprising: The prolonging pipe (1), the drainage bottle (2) and the drainage assembly (3); the prolonging pipe (1) is sealed and communicated with the drainage bottle (2) on one side of the bottom, the bottom of the drainage bottle (2) is provided with the drainage assembly (3), characterized in that the alarm assembly (4) is arranged in the drainage bottle (2), the alarm assembly (4) comprises: The alarm button (44) is sealed and installed in the drainage bottle (2) on one end; The alarm (43) is connected with the other end of the alarm button (44), and the alarm (43) is arranged outside the drainage bottle (2); The touch piece (41) is movably arranged in the drainage bottle (2) through the connecting piece (42), the density of the touch piece (41) is less than that of the condensed water; the touch piece (41) is floated to touch the alarm button (44), and the alarm (43) works.
2. The alarm-indicating ventilator extension tube of claim 1, wherein, The drainage bottle (2) comprises a bottle bottom cover (22) and a drainage bottle body (23), and the bottle bottom cover (22) is connected to the bottom of the drainage bottle body (23).
3. The alarm-indicating ventilator extension tube of claim 2, wherein, The drainage bottle body (23) is provided with a bottle mouth (21), and the inner diameter gradually increases from the bottle mouth (21) to the middle of the bottle body.
4. The breathing apparatus extension tube with alarm drainage according to claim 1, 2 or 3, characterized in that, The alarm button (44) is a wedge-shaped surface away from the other end of the alarm (43).
5. The alarm-indicating ventilator extension tube of claim 4, wherein, The wedge-shaped surface is uniformly and spacedly provided with convex points (45).
6. The alarm-indicating ventilator extension tube of claim 1, 2, 3, or 5, wherein, The touch piece (41) is a sphere.
7. The alarm-indicating ventilator extension tube of claim 1, 2, 3, or 5, wherein, The drainage assembly (3) comprises a drainage pipe (31) and a switch valve (32), one end of the drainage pipe (31) is communicated with the drainage bottle (2), and the switch valve (32) capable of sealing or opening the drainage pipe (31) is arranged on the drainage pipe (31).