Breathing pipeline for machine withdrawal exercise of mechanical ventilation patient

Abstract

An oxygen supply assembly comprises an oxygen output port, an oxygen delivery pipeline is connected to the oxygen output port, a humidification cavity is formed in a humidification tank, an oxygen input port, a humidification port and an air outlet are formed in the humidification tank, the oxygen input port is connected with the oxygen delivery pipeline, and the humidification port is connected with the air outlet. The humidifying opening is connected with a humidifying assembly for providing humidifying liquid, the air supply pipeline is connected with the air outlet, a connecting structure is arranged at the end of the air supply pipeline, the breathing piece is connected with the connecting structure, and the adjusting assembly is arranged on the air supply pipeline and used for controlling the concentration and flow of oxygen conveyed by the air supply pipeline. According to the breathing pipeline for machine-withdrawing exercise of the mechanical ventilation patient, oxygen is provided for the breathing piece through the oxygen supply assembly, the humidifying tank and the air supply pipeline, so that the patient can absorb the oxygen with the proper concentration, the oxygen can be humidified through the humidifying tank, and the humidity of the oxygen absorbed by the patient is proper.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a breathing tube for mechanical ventilation patient withdrawal exercise. Background Art

[0002] A ventilator is a device that can replace, control or change a person's normal physiological breathing, increase lung ventilation, improve respiratory function, reduce respiratory work consumption, and save heart reserve capacity.

[0003] As a means of life support, ventilators can assist patients with primary diseases in breathing. Usually, patients who use ventilators for too long or due to other factors will develop a strong dependence on ventilators, such as using ventilators for more than two weeks, which will cause repeated failures to wean the patients, prolong hospitalization, and increase the possibility of complications such as ventilator-associated pneumonia (VAP) and ventilator-associated lung injury (VILI). Therefore, once the primary disease improves or the inducing factors improve, it is necessary to promptly assess the patient's autonomous breathing ability and physical condition, and evacuate mechanical ventilation as soon as possible to reduce the probability of ventilator-related complications and improve the success rate of rescue.

[0004] Early withdrawal from invasive mechanical ventilation is the key to respiratory support management and one of the keys to determining whether clinical treatment and mechanical ventilation are successful. Therefore, how to improve or maintain lung function, restore the patient's spontaneous breathing as soon as possible, and completely get rid of the ventilator are issues that must be considered throughout the entire process of starting, maintaining, and withdrawing mechanical ventilation. Ventilator withdrawal refers to the process of gradually withdrawing mechanical ventilation support for breathing after the primary disease for which mechanical ventilation is used is controlled and the patient's ventilation and gas exchange functions are improved, so that the patient can recover completely autonomous breathing (referred to as withdrawal). At present, when patients are withdrawn from the machine for exercise, there is no relevant breathing circuit, and they mainly rely on the department's own or reassembled ventilator circuits for use. However, the reassembled ventilator circuits are unable to provide patients with higher oxygen concentrations due to the thick lumen and complete disconnection of the other end; at the same time, the homemade circuit has poor gas humidification, which often leads to failure of ventilator withdrawal exercises. Utility Model Content

[0005] The utility model aims to provide a breathing tube for mechanical ventilation patient weaning exercise, so as to solve the above-mentioned shortcomings in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A breathing circuit for mechanical ventilation patient weaning exercise, comprising:

[0008] An oxygen supply component, the oxygen supply component comprising an oxygen output port, the oxygen output port being connected to an oxygen supply pipeline;

[0009] A humidification tank, wherein a humidification chamber is arranged inside the humidification tank, an oxygen input port, a humidification port and an air outlet are arranged on the humidification tank, the oxygen input port is connected to the oxygen supply pipeline, and the humidification port is connected to a humidification component for providing humidification liquid;

[0010] An air supply pipeline connected to the air outlet, wherein a connecting structure is provided at the end of the air supply pipeline, and a plurality of air outlet holes are provided on the connecting structure;

[0011] a breathing piece connected to the connecting structure and used to deliver oxygen to the patient;

[0012] The regulating component is arranged on the air supply pipeline and is used to regulate and control the concentration and flow rate of oxygen delivered by the air supply pipeline.

[0013] The above-mentioned breathing circuit for mechanically ventilated patients to perform weaning exercises, the regulating component comprises a cylindrical body connected to the circuit, and the cylindrical body is provided with a gas delivery channel for delivering gas.

[0014] The above-mentioned breathing circuit for mechanically ventilated patients' weaning exercises, the air delivery channel includes an inlet section, a contraction section, a throat and a diffusion section connected in sequence, the radial dimension of the inlet section is larger than the radial dimensions of the contraction section, the throat and the diffusion section, and the radial dimension of the throat is smaller than the radial dimensions of the contraction section and the diffusion section.

[0015] In the above-mentioned breathing tube for mechanically ventilated patients to exercise during weaning, in the direction of gas delivery along the gas delivery channel, the radial size of the contraction section gradually decreases, and the radial size of the diffusion section gradually increases.

[0016] In the above-mentioned breathing circuit for mechanically ventilated patients' weaning exercises, the regulating component also includes a regulating valve arranged in the inlet section, and the regulating valve can control the gas delivery flow rate.

[0017] In the above-mentioned breathing tube for mechanical ventilation patient weaning exercise, an annular cavity is further provided in the cylindrical body, the annular cavity is arranged around the throat, and the side wall of the annular cavity is circumferentially provided with a plurality of air inlet holes.

[0018] The above-mentioned breathing circuit for mechanically ventilated patients' weaning exercise also includes an annular rotating plate, which is rotatably connected to the cylindrical body, and is provided with a through hole, which can be rotated to open or close the air inlet.

[0019] The above-mentioned breathing circuit for mechanically ventilated patients' weaning exercises also includes a circular humidification plate, which is arranged inside the humidification tank. The circular humidification plate divides the humidification tank into a humidification chamber located below the circular humidification plate and an air outlet chamber located above the circular humidification plate.

[0020] The above-mentioned breathing circuit for mechanically ventilated patients to exercise during weaning is provided inside the humidification tank with an air inlet pipe connected to the oxygen inlet port, and the lower end of the air inlet pipe passes through the circular humidification plate and extends into the humidification chamber.

[0021] In the above-mentioned breathing circuit for mechanically ventilated patients' weaning exercise, an air outlet pipe connected to the air outlet is arranged inside the humidification tank, and the lower end of the air outlet pipe is located in the air outlet chamber.

[0022] In the above technical scheme, the breathing circuit for mechanically ventilated patients to exercise after weaning from the mechanical ventilation provided in the embodiment of the utility model includes an oxygen supply component, a humidification tank, an air supply pipeline and a respiratory component connected in sequence, and an adjustment component is arranged on the air supply pipeline. When the patient is exercising after weaning from the mechanical ventilation, oxygen is provided to the respiratory component through the oxygen supply component, the humidification tank and the air supply pipeline, so that the patient can absorb oxygen of appropriate concentration, and the oxygen can be humidified by the humidification tank so that the oxygen absorbed by the patient has appropriate humidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 A schematic diagram of the structure of a breathing circuit for mechanically ventilated patients undergoing ventilation training provided by an embodiment of the utility model;

[0025] Figure 2 A schematic diagram of the internal structure of a humidification tank provided in an embodiment of the utility model;

[0026] Figure 3 A schematic structural diagram of an adjustment component provided in an embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 1. Oxygen supply component; 11. Oxygen output port; 12. Oxygen supply pipeline; 2. Humidifier tank; 21. Humidifier cavity; 211. Humidifier chamber; 212. Air outlet chamber; 22. Oxygen input port; 23. Humidifier port; 24. Air outlet; 25. Circular humidifier plate; 251. Spray head; 26. Gap; 27. Air inlet pipe; 28. Air outlet pipe; 3. Humidifier component; 4. Air supply pipeline; 41. Connecting structure; 5. Breathing piece; 6. Adjustment component; 61. Columnar body; 611. Air supply channel; 62. Inlet section; 63. Contraction section; 64. Throat; 65. Diffusion section; 66. Adjustment valve; 67. Annular cavity; 671. Air inlet hole; 68. Annular rotating plate; 681. Through hole. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] like Figure 1-3 As shown, an embodiment of the utility model provides a breathing circuit for mechanically ventilated patients to exercise during weaning, comprising an oxygen supply component 1, a humidification tank 2, an air supply pipeline 4, a breathing piece 5 and an adjusting component 6. The oxygen supply component 1 comprises an oxygen output port 11, to which an oxygen supply pipeline 12 is connected. A humidification chamber 21 is provided inside the humidification tank 2. The humidification tank 2 is provided with an oxygen input port 22, a humidification port 23 and an air outlet 24. The oxygen input port 22 is connected to the oxygen supply pipeline 12, and the humidification port 23 is connected to a humidification component 3 for providing humidification liquid. The air supply pipeline 4 is connected to the air outlet 24. A connecting structure 41 is provided at the end of the air supply pipeline 4, and a plurality of air outlet holes are provided on the connecting structure 41. The breathing piece 5 is connected to the connecting structure 41 for delivering oxygen to the patient. The adjusting component 6 is provided on the air supply pipeline 4 for controlling the concentration and flow rate of oxygen delivered by the air supply pipeline 4.

[0031] Specifically, the oxygen supply component 1 is used to provide oxygen after evacuating the ventilator. The oxygen supply component 1 includes an oxygen output port 11. The oxygen supply component 1 can be connected to the hospital oxygen supply system. The oxygen supply component 1 can also be an oxygen cylinder. In this case, the oxygen output port 11 can be set on the oxygen cylinder. An oxygen supply pipeline 12 is connected to the oxygen output port 11. The oxygen in the oxygen cylinder or the hospital oxygen supply system can be output to the oxygen supply pipeline 12 through the oxygen output port 11. The humidification tank 2 is provided with an oxygen input port 22, a humidification port 23 and an air outlet 24. The oxygen input port 22, the humidification port 23 and the air outlet 24 are all connected to the humidification chamber 21 inside the humidification tank 2. The oxygen input port 22 is connected to the oxygen supply pipeline 12, the air outlet 24 is connected to the air supply pipeline 4, the humidification port 23 is connected to the humidification component 3, the humidification component 3 provides atomized liquid for oxygen humidification, the breathing piece 5 is connected to the air supply pipeline 4, the breathing piece 5 can be a tracheal tube, or a mask and a trachea connected to the mask, so that the breathing piece 5, the air supply pipeline 4, the humidification tank 2 and the oxygen supply component 1 are connected. At the same time, an adjustment component 6 is also provided on the air supply pipeline 4, and the oxygen concentration and flow rate of the delivered oxygen can be adjusted and controlled by the adjustment component 6, so that the delivered oxygen flow rate and concentration meet the needs of the patient.

[0032] In this embodiment, the humidification component 3 can be a liquid storage bottle for storing liquid, which is connected to the humidification port 23 through a connecting pipe, and a pressure structure is connected to the liquid storage bottle. A nozzle connected to the connecting pipe is provided in the humidification chamber 21. The liquid can be sprayed in a mist form and transported to the humidification chamber 21 through the pressure structure and the nozzle. The atomized liquid is mixed with oxygen in the humidification chamber 21 to humidify the oxygen. In this way, when in use, the oxygen supply component 1 provides oxygen to the oxygen supply pipeline 12, and the oxygen supply pipeline 12 transports the oxygen to the humidification tank 2 for humidification treatment. The humidified oxygen is output to the air supply pipeline 4 and the breathing component 5 through the outlet 24, so as to be provided for the patient to breathe.

[0033] The embodiment of the utility model provides a breathing circuit for mechanically ventilated patients to exercise during weaning, comprising an oxygen supply component 1, a humidifier tank 2, an air supply pipeline 4 and a breathing piece 5 which are connected in sequence, and an adjustment component 6 is arranged on the air supply pipeline 4. When the patient is exercising during weaning, oxygen is provided to the breathing piece 5 through the oxygen supply component 1, the humidifier tank 2 and the air supply pipeline 4, so that the patient can absorb oxygen of appropriate concentration, and the oxygen can be humidified by the humidifier tank 2, so that the oxygen absorbed by the patient has appropriate humidity.

[0034] In this embodiment, preferably, the regulating component 6 includes a cylindrical body 61 connected to the pipeline, and a gas delivery channel 611 for conveying gas is arranged on the cylindrical body 61. The gas delivery channel 611 includes an inlet section 62, a contraction section 63, a throat 64 and a diffusion section 65 connected in sequence. The radial dimension of the inlet section 62 is larger than the radial dimensions of the contraction section 63, the throat 64 and the diffusion section 65, and the radial dimension of the throat 64 is smaller than the radial dimensions of the contraction section 63 and the diffusion section 65. In this way, the radial dimension of the gas delivery channel 611 is the largest at the inlet section 62 and the smallest at the throat 64.

[0035] In this embodiment, preferably, in the conveying direction of the gas along the gas delivery channel 611, the radial dimension of the contraction section 63 gradually decreases, so that the inlet section 62 and the throat 64 are connected, and the radial dimension of the diffusion section 65 gradually increases. When the gas flows from the inlet section 62 to the contraction section 63 and the throat 64, the radial dimension of the delivery channel gradually decreases, so that the flow velocity of the gas gradually increases, and the flow velocity at the throat 64 reaches the maximum, so that a negative pressure is formed at the throat 64, and then the gas is transported to the diffusion section 65, and the flow velocity of the gas is reduced.

[0036] In this embodiment, preferably, the regulating component 6 also includes a regulating valve 66 arranged in the inlet section 62, and the regulating valve 66 can control the gas delivery flow rate. The gas flow delivered to the delivery channel can be regulated and controlled by the regulating valve 66, so that the oxygen delivery flow rate meets the patient's breathing requirements.

[0037] In this embodiment, preferably, an annular cavity 67 is further provided in the cylindrical body 61, and the annular cavity 67 is connected with the throat 64. The annular cavity 67 is arranged around the throat 64, and the side wall of the annular cavity 67 is circumferentially provided with a plurality of air inlet holes 671. The plurality of air inlet holes 671 are circumferentially spaced in sequence along the side wall of the annular cavity 67, and the air inlet holes 671 are connected with the air, so that when oxygen is delivered to the throat 64 to form a negative pressure, the air can be delivered to the annular cavity 67 through the air inlet holes 671, and delivered to the throat 64 through the annular cavity 67, so that the air and oxygen can be mixed with each other in the throat 64 and the diffusion section 65 to reduce the concentration of oxygen, thereby achieving the regulation of the oxygen concentration.

[0038] In this embodiment, preferably, an annular rotating plate 68 is further included, and the annular rotating plate 68 is rotatably connected to the cylindrical body 61. A through hole 681 is provided on the annular rotating plate 68, and the through hole 681 can be rotated to open or close the air inlet 671; the number, size and position of the through holes 681 on the annular rotating plate 68 are set corresponding to the air inlet 671, so that when the annular plate rotates on the cylindrical body 61 so that each through hole 681 corresponds to each air inlet 671 one by one, at this time, each air inlet 671 is opened, and air can enter the annular cavity 67 through the air inlet 671. When the annular plate rotates so that the through hole 681 partially corresponds to each air inlet hole 671, the air inlet hole 671 is partially opened. When the annular plate rotates so that the through hole 681 is staggered with each air inlet hole 671, the annular rotating plate 68 closes each air inlet hole 671, so that the air inlet hole 671 is closed. At this time, the gas delivered to the patient is the oxygen delivered by the oxygen supply component 1, and the oxygen concentration is the highest. At the same time, a filter net can be provided on the through hole 681, and the air can be filtered through the filter net to prevent dust and debris from entering the delivery channel.

[0039] In the present embodiment, preferably, the humidification tank 2 comprises a tank body, a circular humidification plate 25 is arranged transversely inside the tank body, the circular humidification plate 25 divides the tank body into a humidification chamber 211 located below the circular humidification plate 25 and an air outlet chamber 212 located above the circular humidification plate 25, the circular humidification plate 25 is connected with the humidification port 23, a circular inner cavity is arranged inside the circular humidification plate 25, a plurality of liquid spray heads 251 are arranged at the bottom of the circular humidification plate 25, and each liquid spray head 251 is connected with the circular inner cavity, so that the liquid in the humidification component 3 is transported to the humidification port 23, and then transported to the circular inner cavity in the circular humidification plate 25, and dispersedly sprayed out through each liquid spray head 251 to form atomized liquid.

[0040] In this embodiment, preferably, the interior of the humidification tank 2 is provided with an air inlet pipe 27 connected to the oxygen input port 22, the lower end of the air inlet pipe 27 passes through the circular humidification plate 25 and enters the humidification chamber 211, and the interior of the humidification tank 2 is provided with an air outlet pipe 28 connected to the air outlet 24, the lower end of the air inlet pipe 27 is located in the air outlet chamber 212, and a gap 26 is preset between the outer wall of the circular humidification plate 25 and the inner wall of the tank body, and the gap 26 makes the humidification chamber 211 and the air outlet chamber 212 connected. In this way, when in use, the oxygen supply component 1 provides the oxygen supply pipeline 12 with oxygen. Oxygen, oxygen is transported to the humidification chamber 211 through the air inlet pipe 27, and the spray head 251 sprays atomized liquid into the humidification chamber 211, thereby humidifying the oxygen, and in the humidification tank 2, the oxygen moves upward and the atomized liquid moves downward. At the same time, the upward movement of the oxygen will be blocked by the circular humidification plate 25, so that the transport direction of the oxygen changes and is transported from the gap 26 to the air outlet chamber 212, which can increase the humidification effect. The humidified oxygen enters the air outlet chamber 212 and is output to the air supply pipeline 4 and the breathing component 5 through the air outlet pipe 28, so that the patient can breathe.

[0041] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A breathing circuit for mechanically ventilated patients to perform ventilation withdrawal exercises, characterized in that: include: An oxygen supply component, the oxygen supply component comprising an oxygen output port, the oxygen output port being connected to an oxygen supply pipeline; A humidification tank, wherein a humidification chamber is arranged inside the humidification tank, an oxygen input port, a humidification port and an air outlet are arranged on the humidification tank, the oxygen input port is connected to the oxygen supply pipeline, and the humidification port is connected to a humidification component for providing humidification liquid; An air supply pipeline connected to the air outlet, wherein a connecting structure is provided at the end of the air supply pipeline, and a plurality of air outlet holes are provided on the connecting structure; a breathing piece connected to the connecting structure and used to deliver oxygen to the patient; The regulating component is arranged on the air supply pipeline and is used to regulate and control the concentration and flow rate of oxygen delivered by the air supply pipeline.

2. The breathing circuit for mechanical ventilation patient weaning training according to claim 1, characterized in that: The regulating component comprises a cylindrical body connected to the pipeline, and a gas delivery channel for delivering gas is arranged on the cylindrical body.

3. The breathing circuit for mechanical ventilation patient weaning training according to claim 2, characterized in that: The gas transmission channel includes an inlet section, a contraction section, a throat and a diffusion section connected in sequence, the radial size of the inlet section is larger than the radial sizes of the contraction section, the throat and the diffusion section, and the radial size of the throat is smaller than the radial sizes of the contraction section and the diffusion section.

4. The breathing circuit for mechanical ventilation patient weaning training according to claim 3, characterized in that: In the conveying direction of the gas along the gas conveying channel, the radial size of the contraction section gradually decreases, and the radial size of the diffusion section gradually increases.

5. The breathing circuit for mechanical ventilation patient weaning training according to claim 4, characterized in that: The regulating component also includes a regulating valve arranged in the inlet section, and the regulating valve can control the delivery flow rate of the gas.

6. The breathing circuit for mechanical ventilation patient weaning training according to claim 5, characterized in that: An annular cavity is also provided in the cylindrical body, and the annular cavity is arranged around the throat. A plurality of air inlet holes are provided on the side wall of the annular cavity along the circumferential direction.

7. The breathing circuit for mechanical ventilation patient weaning training according to claim 6, characterized in that: It also includes an annular rotating plate, which is rotatably connected to the cylindrical body. The annular rotating plate is provided with a through hole, and the through hole can be rotated to open or close the air inlet.

8. The breathing circuit for mechanically ventilated patients' weaning training according to claim 1, characterized in that: It also includes a circular humidifying plate, which is arranged inside the humidifying tank. The circular humidifying plate divides the humidifying tank into a humidifying chamber located below the circular humidifying plate and an air outlet chamber located above the circular humidifying plate.

9. The breathing circuit for mechanical ventilation patient weaning training according to claim 8, characterized in that: An air inlet pipe connected to the oxygen input port is arranged inside the humidification tank, and the lower end of the air inlet pipe passes through the circular humidification plate and extends into the humidification chamber.

10. The breathing circuit for mechanical ventilation patient weaning training according to claim 9, characterized in that: An air outlet pipe connected to the air outlet is arranged inside the humidification tank, and the lower end of the air outlet pipe is located in the air outlet chamber.

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