Intensive care unit breathing machine anticoagulation water pipe

Abstract

The utility model provides a kind of breathing machine anticoagulation water pipeline for ICU, it is related to breathing machine field;The breathing machine anticoagulation water pipeline for ICU, including the pipeline installed on breathing machine, the pipeline is used to inject gas to breathing mask, the outer surface of pipeline is wound with heating band, the inside of pipeline is equipped with special-shaped pipe, and the gas exhaled by patient enters from one end of special-shaped pipe;The breathing machine anticoagulation water pipeline for ICU, by the special-shaped pipe being set, utilize patient exhaled gas waste heat, by special-shaped pipe and cold gas heat exchange, preheat cold gas, reduce heating band energy consumption, improve energy utilization efficiency, while heating band maintains pipeline temperature, prevent gas water vapor condensation, the spiral hose at special-shaped pipe increases exhaled gas and inner wall contact area, prolongs gas residence time, improves heat conduction and heat exchange effect, further helps energy saving, the hose of adjustable pitch can be adjusted according to patient respiratory condition.

Description

Technical Field

[0001] This utility model relates to the field of ventilators, specifically an anticoagulant water pipe for ICU ventilators. Background Technology

[0002] A ventilator is a device that helps the respiratory system perform ventilation. In the ICU, it is mainly used to provide respiratory support for patients with respiratory insufficiency or respiratory failure to maintain their vital signs and internal environment stability. When using a ventilator, the exhaled air contains moisture. When the air flows in the tubing and encounters cold air, it easily condenses into water droplets. If this condensate accumulates in the tubing, it will not only affect the normal delivery of gas, but may also breed bacteria and even be aspirated by the patient, causing complications such as infection. The role of anti-condensation tubing is to reduce or prevent the generation of condensate through certain technical means, keeping the tubing dry and unobstructed.

[0003] Traditional ICU ventilator anti-condensation tubing typically involves wrapping heating wires or heating cloth around the outer wall of the tubing and heating it with an electric current to raise the tubing temperature, thereby reducing the temperature difference between the gas inside the tubing and the outside environment and reducing the possibility of condensation formation. However, to ensure the anti-condensation effect, continuous high-power heating is required, especially in cold environments, which leads to increased energy consumption. For ICU settings that require a large number of ventilators, long-term use will increase energy costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an anticoagulant water pipeline for ICU ventilators, which solves the problem of high energy consumption.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an anticoagulant water pipe for an ICU ventilator, comprising a pipe installed on the ventilator, the pipe being used to inject gas into a breathing mask, the outer surface of the pipe being wrapped with a heating belt, and a special-shaped tube being installed inside the pipe, through which the patient's exhaled gas enters.

[0006] The irregular tube includes a connecting tube, a flexible tube, and a fixing tube connected in sequence. The connecting tube is slidably connected to the pipeline and is used to connect to the breathing mask of the ventilator. The fixing tube is fixed to the pipeline. The flexible tube has an adjustable length spiral shape and is used for heat exchange with the gas in the pipeline.

[0007] Preferably, one end of the pipe is used to connect to a gas source device, and the other end is used to connect to a ventilator.

[0008] Preferably, the pipeline includes an inlet pipe, a pipe body, and an outlet pipe connected in sequence, wherein the pipe body is made of rigid material, and the inlet pipe and the outlet pipe are made of flexible material.

[0009] Preferably, the hose is made of a nickel-titanium alloy.

[0010] Preferably, both the connecting pipe and the air outlet pipe are equipped with a one-way valve.

[0011] Preferably, a movable component is fixedly installed at one end of the connecting pipe, and a bolt is threaded inside the movable component, with one end of the bolt rotatably connected to the pipe.

[0012] Compared with existing technologies, this utility model has the following beneficial effects: By using the specially shaped tube, the residual heat of the patient's exhaled gas is utilized to exchange heat with the cold gas, preheating the cold gas, reducing the energy consumption of the heating belt, and improving energy utilization efficiency. At the same time, the heating belt maintains the pipe temperature and prevents water vapor in the gas from condensing. The spiral flexible tube at the special tube increases the contact area between the exhaled gas and the inner wall, prolongs the gas residence time, improves the heat conduction and heat exchange effect, and further contributes to energy saving. Moreover, the spiral structure makes the spatial layout more compact, achieving efficient heat exchange in a limited space. The flexible tube, made of nickel-titanium alloy with adjustable pitch, can be adjusted according to the patient's breathing condition. For patients with severely impaired respiratory function, the flexible tube can be lengthened to increase the gas buffer space and reduce airflow resistance, making it easier to exhale gas. For patients with better breathing ability, the pitch can be shortened to facilitate the detection of exhaled gas composition. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is an exploded view of the irregular-shaped pipe and pipeline of this utility model;

[0015] Figure 3 This is a schematic diagram of the irregular tube structure of this utility model;

[0016] Figure 4 This is a cross-sectional view of the connecting pipe and the air outlet pipe of this utility model.

[0017] The components include: 1. Pipeline; 101. Inlet pipe; 102. Pipe body; 103. Outlet pipe; 2. Heating belt; 3. Shaped pipe; 301. Connecting pipe; 302. Flexible hose; 303. Fixed pipe; 4. One-way valve; 5. Moving parts. Detailed Implementation

[0018] like Figures 1-4As shown, an anticoagulant water pipeline for an ICU ventilator includes a pipeline 1 installed on the ventilator. The pipeline 1 is used to inject gas into the breathing mask. A heating band 2 is wrapped around the outer surface of the pipeline 1. A special-shaped tube 3 is installed inside the pipeline 1. The gas exhaled by the patient enters from one end of the special-shaped tube 3. One end of the pipeline 1 is used to connect to a gas source device, which can be a medical oxygen cylinder. The other end is connected to the ventilator. Gas is injected into the pipeline 1 through the gas source device and delivered to the breathing mask of the ventilator from the outlet end of the pipeline 1. The pipeline 1 includes an inlet pipe 101, a pipe body 102, and an outlet pipe 103 connected in sequence. The pipe body 102 is made of rigid material, while the inlet pipe 101 and the outlet pipe 103 are made of soft material.

[0019] The irregular tube 3 includes a connecting tube 301, a flexible tube 302, and a fixing tube 303 connected in sequence. The connecting tube 301 is slidably connected to the pipe 1 and is used to connect to the breathing mask of the ventilator. The junction of the connecting tube 301 and the pipe 1 is sealed. The fixing tube 303 is fixed to the pipe 1. The flexible tube 302 is a spiral shape with adjustable length and is used to exchange heat with the gas in the pipe 1. The flexible tube 302 is made of nickel-titanium alloy, which is a shape memory alloy that can undergo elastic deformation when subjected to force. One-way valves 4 are installed in both the connecting tube 301 and the outlet tube 103. A movable part 5 is fixedly installed at one end of the connecting tube 301. The movable part 5 is internally threaded with a bolt, and one end of the bolt is rotatably connected to the pipe 1.

[0020] Working principle:

[0021] First, connect the inlet pipe 101 of pipe 1 to the gas source device, and connect the outlet pipe 103 of pipe 1 to the breathing mask of the ventilator. The gas source device can be an oxygen cylinder. The oxygen in the oxygen cylinder passes through the inlet pipe 101, the pipe body 102, and the outlet pipe 103 in sequence, and enters the breathing mask of the ventilator. When the patient inhales, the one-way valve 4 in the outlet pipe 103 opens, allowing oxygen to flow only towards the breathing mask to prevent backflow; when exhaling, the one-way valve 4 in the connecting pipe 301 opens, allowing exhaled air to enter through this valve. The exhaled air, carrying body heat, flows through the connecting tube 301, the flexible tube 302, and the fixed tube 303 before being discharged. In this process, the residual heat of the exhaled air becomes a usable resource. This residual heat recovery is achieved through the shaped tube 3. As the exhaled air flows through the shaped tube 3, based on the principle of heat conduction, heat is rapidly transferred from the high-temperature exhaled air to the low-temperature wall of the shaped tube 3. The outside of the shaped tube 3 is surrounded by the cold air about to enter the pipe 1. Heat exchange occurs between the hot and cold air through the wall of the shaped tube 3. The heating element 2 heats the cold gas, thus preheating the gas that would otherwise require significant heating by the heating element 2. The heating element 2, tightly wrapped around the outside of the pipe 1, continuously heats the pipe, ensuring a suitable temperature for the oxygen or gas inside and preventing water vapor condensation due to low temperatures. Since the cold gas entering the pipe 1 has already been preheated by the residual heat of the exhaled gas, the heating element 2 only needs to supplement a small amount of heat to raise the gas to the target temperature, greatly reducing energy consumption and improving energy efficiency. It should be noted that the oxygen in actual oxygen cylinders is not absolutely pure and may contain water vapor. This water vapor may have been introduced during oxygen production, storage, or transportation. When the temperature inside the pipe 1 drops to a certain level, the water vapor may condense into water. If no anti-condensation measures are taken, the condensate may accumulate at the bottom of the pipe 1, affecting oxygen delivery. When the oxygen in the pipe 1 contains a small amount of water vapor, if the temperature is too low, the water vapor may condense into water. Therefore, it is necessary to heat the pipe 1 to prevent condensation.

[0022] Next, because the flexible tube 302 of the special-shaped tube 3 is spiral-shaped, compared with a regular straight tube, the spiral flexible tube 302 increases the contact area between the exhaled gas and the inner wall of the special-shaped tube 3. When the patient's exhaled warm gas flows through this area, the longer contact path and larger contact area allow for a more thorough heat conduction process. This allows more heat to be efficiently transferred from the exhaled gas to the special-shaped tube 3, and then to the surrounding gas. Moreover, the spiral structure of the flexible tube 302 also prolongs the residence time of the gas in the tube. The exhaled gas flows in the spiral channel, slowing down the flow rate, which prolongs the heat exchange time and further improves the heat transfer effect, thereby reducing the energy consumption required for subsequent heating of the heating band 2. In addition, the spiral flexible tube 302 is more compact in spatial layout, achieving high heat exchange efficiency within a limited space.

[0023] Next, the flexible tube 302 can be made of nickel-titanium alloy. Nickel-titanium alloy has shape memory properties and elasticity, which can lengthen or shorten the flexible tube 302 to change its pitch. In this process, the moving part 5 can be moved by rotating the bolt, and the moving part 5 can move the connecting tube 301. Since the fixed tube 303 is fixed relative to the pipe 1, the fixed tube 303 can provide support for one end of the flexible tube 302. The connecting tube 301 moves the other end of the flexible tube 302, thereby changing the pitch of the flexible tube 302. For patients with respiratory muscle weakness and chronic obstructive pulmonary disease (COPD) that has severely impaired respiratory function, such as COPD patients with obstructive lesions in their airways, the ventilator provides appropriate pressure during inhalation to deliver enough oxygen to the alveoli and improve oxygenation. However, during the expiratory phase, in most cases, patients rely on the chest wall and lungs. Patients who rely on elastic recoil to exhale have relatively weak exhalation abilities and require a smoother airflow path and a larger buffer space to assist in exhalation. Lengthening the tubing 302 can increase the gas buffer space, reduce airflow resistance, and make it easier for patients to exhale, reducing the feeling of difficulty breathing. If the patient's breathing ability is relatively good, the pitch of the tubing 302 can be shortened, which facilitates high-precision detection of exhaled gas composition. For example, when detecting trace amounts of specific disease markers in exhaled gas for early disease screening, the accuracy of gas composition is crucial. Shortening the pitch of the tubing 302 makes the gas flow path more tortuous, prolongs the residence time of gas in the tubing 302, and promotes thorough mixing of exhaled gas. This ensures that the test sample is more representative, reduces detection errors caused by uneven gas mixing, and provides more reliable data support for disease diagnosis.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anticoagulant water tubing for an ICU ventilator, comprising tubing (1) installed on the ventilator, characterized in that: The pipe (1) is used to inject gas into the breathing mask. The outer surface of the pipe (1) is wrapped with a heating band (2). A special-shaped tube (3) is installed inside the pipe (1). The gas exhaled by the patient enters from one end of the special-shaped tube (3). The irregular tube (3) includes a connecting tube (301), a flexible tube (302) and a fixing tube (303) connected in sequence. The connecting tube (301) is slidably connected to the pipe (1) and is used to connect to the breathing mask of the ventilator. The fixing tube (303) is fixed to the pipe (1). The flexible tube (302) is a spiral shape with adjustable length and is used to exchange heat with the gas in the pipe (1).

2. The anticoagulant water pipeline (1) for an ICU ventilator according to claim 1, characterized in that: One end of the pipe (1) is used to connect to the gas source device, and the other end is used to connect to the ventilator.

3. The anticoagulant water pipeline (1) for an ICU ventilator according to claim 1, characterized in that: The pipe (1) includes an inlet pipe (101), a pipe body (102) and an outlet pipe (103) connected in sequence. The pipe body (102) is made of rigid material, while the inlet pipe (101) and the outlet pipe (103) are made of soft material.

4. The anticoagulant water pipeline (1) for an ICU ventilator according to claim 1, characterized in that: The hose (302) is made of nickel-titanium alloy.

5. The anticoagulant water pipeline (1) for an ICU ventilator according to claim 3, characterized in that: Both the connecting pipe (301) and the vent pipe (103) are equipped with one-way valves (4).

6. An anticoagulant water pipeline (1) for an ICU ventilator according to claim 1 or 3, characterized in that: One end of the connecting pipe (301) is fixedly installed with a movable part (5), and the movable part (5) is internally threaded with a bolt, one end of which is rotatably connected to the pipe (1).

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