Multi-airway leaflet lung mechanical ventilation system
The multi-airway lobulated lung mechanical ventilation system uses a controller and airway module to control multiple lobulated ventilation tubes, enabling independent ventilation and real-time monitoring of different lung regions. This solves the problem of uneven lung ventilation, improves treatment outcomes, and saves medical resources.
Patent Information
- Application Number
- CN202511790568.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-01
- Publication Date
- 2026-01-23
AI Technical Summary
Existing mechanical ventilation systems are unable to achieve precise ventilation control of multiple lung tissues, resulting in uneven lung ventilation, damage to some lung tissues due to lack of gas exchange, and overinflation of some lung tissues. Furthermore, existing equipment is wasteful of resources and difficult to coordinate.
The multi-airway lobulated lung mechanical ventilation system uses a controller and airway module to control multiple lobulated ventilation tubes, enabling independent ventilation and real-time monitoring of different lung regions. It utilizes airflow control components and motion control modules to finely regulate gas flow, and combines a cuff to fix the tubes in the trachea of the lungs.
It enables independent ventilation treatment of multiple lung regions with a single device, allowing for precise control of gas distribution, reducing lung tissue damage, improving treatment effectiveness, and saving medical resources.
Smart Images
Figure CN121371405A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, and more specifically to a multi-airway lobulated lung mechanical ventilation system. Background Technology
[0002] Currently, invasive mechanical ventilation (ventilator) systems primarily deliver air to patients through endotracheal intubation in the main airway. The air-oxygen mixture supplied by the ventilator travels through the main airway and bronchi to the alveoli for gas exchange. The flow of gas after passing through the main airway is mainly influenced by the morphology and structure of the bronchi, resulting in varying amounts of gas entering different parts of the lung tissue. In patients with acute respiratory failure (ARDS), COPD, severe pneumonia, etc., uneven ventilation of the lungs is common. Some lung tissues do not receive enough gas for an extended period, hindering gas exchange and exacerbating lung damage. Conversely, some lung tissues receive excessive gas, leading to alveolar overinflation and even rupture.
[0003] Currently, the main method used is dual-lumen endotracheal tubes for lateral lung ventilation, but this can only solve the problem of uneven ventilation between the left and right lungs and cannot more precisely control the ventilation in other areas; moreover, it requires two ventilators to supply air, and the coordinated use of the two machines is difficult and wastes medical equipment resources.
[0004] Therefore, how to ventilate multiple lung tissues and achieve precise ventilation control is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention
[0005] In view of the above problems, the present invention is proposed to provide a multi-airway lobulated lung mechanical ventilation system that overcomes or at least partially solves the above problems, enabling independent ventilation of multiple lung regions with a single device, providing refined ventilation treatment for different lung regions, and enabling real-time monitoring of ventilation status in different lung regions, thereby improving the therapeutic effect of mechanical ventilation.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, embodiments of the present invention provide a multi-airway lobulated lung mechanical ventilation system, comprising a controller, an airway module, and a catheter module; the airway module is electrically connected to the controller, and the airway is connected to the catheter module; the catheter module is connected to the controller. The conduit module includes a ventilation conduit and several branch ventilation conduits, which are respectively connected to the airway module; each branch ventilation conduit is equipped with a motion control module, which is connected to the controller.
[0007] The technical effect of the above solution is that the airway module delivers air to the lungs through the ventilation tubing, and the controller controls the insertion of the branch ventilation tube into the bronchial tube of the lung through the motion control module, thereby delivering air to the bronchial tube through the branch ventilation tube, achieving precise control of air supply, ensuring ventilation of multiple lung tissues, and avoiding aggravation of lung tissue damage.
[0008] Preferably, the gas path module includes a gas source, a ventilation circuit, and a flow control component. The flow control component includes a flow sensor, a pressure sensor, a proportional valve, and a gas path connector, which are respectively installed on the ventilation circuit. The flow sensor, the pressure sensor, and the proportional valve are electrically connected to the controller. The ventilation circuit connects the gas source, the ventilation pipeline, and the branch ventilation conduit.
[0009] Preferably, the gas source includes a compressed air source, an oxygen source, and a negative pressure source; the ventilation circuit includes a main ventilation circuit and several branch ventilation circuits; the airflow control component includes several sets of compressed air flow sensors, oxygen flow sensors, exhaled air flow sensors, air-oxygen mixture pressure sensors, exhaled air pressure sensors, compressed air proportional valves, oxygen proportional valves, and exhaled air proportional valves; each main ventilation circuit and each branch ventilation circuit connected to the oxygen source is equipped with an oxygen proportional valve and an oxygen flow sensor; each pipe connected to the compressed air source is equipped with a compressed air proportional valve and a compressed air flow sensor; each pipe connected to the negative pressure source is equipped with an exhaled air proportional valve, an exhaled air flow sensor, and an exhaled air pressure sensor; and the air-oxygen mixture pressure sensor is installed on the mixing pipe connecting the compressed air source and the oxygen source; the main ventilation circuit is connected to the ventilation pipeline via a gas line connector using a pipe connector; and each branch ventilation circuit is connected to the branch ventilation conduit via a connector using a pipe connector.
[0010] Preferably, the ventilation circuit is provided with a main ventilation channel and several branch ventilation channels, with each branch ventilation tube passing through one of the branch ventilation channels; the main ventilation channel is connected to the main ventilation circuit. The main ventilation channel provides ventilation to the main trachea of the lungs, and the branch ventilation channels provide ventilation to the other bronchi of the lungs.
[0011] Preferably, the motion control module includes a bending structure and two traction cables. The bending structure is fixed to the air outlet end of the venting duct, and one end of each of the two traction cables is fixed to the symmetrical sides of the bending structure, while the other end is connected to the controller.
[0012] Preferably, the branch ventilation duct is provided with a ventilation cavity and two traction line cavities; the ventilation cavity is connected to the branch ventilation circuit; the traction line passes through the traction line cavity, and the output end is fixed on the curved structure.
[0013] Preferably, the venting duct is further provided with a camera module and a cable cavity. The camera module includes an LED light, a camera and a video signal transmission line. The LED light and the camera are fixed to the air outlet end of the venting duct and connected to the controller through the video signal transmission line, and the video signal transmission line passes through the cable cavity.
[0014] Preferably, the system also includes several air bladders, which are fixed to the outlet end of the ventilation tubing or the outlet end of the branch ventilation tube. Inflating the air bladders secures the ventilation tubing and branch ventilation tubes within the trachea of the lungs, simultaneously creating a seal, thus effectively ventilating different locations within the lungs. Deflating the air bladders allows for the retraction and movement of the branch ventilation tubes. Inflation and deflation of the air bladders can be achieved by connecting the main ventilation circuit or the branch ventilation circuit of the airway module, or manually via an inflation needle. The inflation and deflation of the air bladders is a single process; each air bladder is equipped with a spring-loaded one-way valve that opens upon inflation and closes upon completion, employing the air bladder structure found in existing endotracheal intubation techniques.
[0015] Preferably, the system also includes a display connected to the video signal transmission line, flow sensor, and pressure sensor. The display receives video information captured by the camera and guides the movement of the traction line through the controller, thereby controlling the forward direction of the ventilator and allowing it to smoothly enter the patient's lung bronchi.
[0016] Preferably, a separate ventilation duct imaging module is also provided, which connects to a camera and a display, and decodes the information collected by the camera and transmits it to the display for display.
[0017] As can be seen from the above technical solution, compared with the prior art, this invention discloses a multi-airway lobulated lung mechanical ventilation system that can simultaneously achieve independent ventilation of multiple airways. The system supports 3-6 independent ventilation channels and is equipped with one main ventilation circuit and 2-5 branch ventilation circuits. The branch ventilation tubes can enter each lung region along the bronchi. Independent control of the branch ventilation tubes allows for separate ventilation of different lung regions, while other lung regions are supplied with air by the main ventilation circuit. This invention enables independent ventilation of multiple lung regions with a single device, allowing for precise ventilation treatment targeting different lung regions. It also enables real-time monitoring of ventilation status in different lung regions, improving the therapeutic effect of mechanical ventilation. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of a three-slot ventilation duct system provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the ventilation pipeline provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the ventilation duct structure provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the system gas path module structure provided in an embodiment of the present invention.
[0020] In the attached diagram: 1-Display, 2-Controller, 3-First tubing connector, 4-Ventilation tubing, 5-Second tubing connector, 6-Ventilation tubing airbag, 7-First branch ventilation tube, 8-Second branch ventilation tube, 9-Third branch ventilation tube, 10-First branch ventilation tube airbag, 11-Second branch ventilation tube airbag, 12-Third branch ventilation tube airbag, 13-Traction cable, 14-Video signal transmission line, 15-Main ventilation channel, 16-Branch ventilation channel, 17-Ventilation channel, 1 8-LED light, 19-camera, 20-traction line cavity, 21-cable cavity, 22-bending structure, 23-compressed air source, 24-oxygen source, 25-negative pressure source, 26-compressed air flow sensor, 27-compressed air proportional valve, 28-oxygen flow sensor, 29-oxygen proportional valve, 30-exhaled air flow sensor, 31-exhaled air proportional valve, 32-air-oxygen mixture pressure sensor, 33-exhaled air pressure sensor, 34-gas connection connector. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0022] Example 1 This invention discloses a multi-airway segmented lung mechanical ventilation system, such as... Figure 1As shown, it includes a controller 2, a gas path module, and a conduit module; the gas path module is electrically connected to the controller 2, and the gas path module is connected to the conduit module; the conduit module is connected to the controller; the conduit module includes a ventilation pipe 4 and several branch ventilation pipes, which are respectively connected to the gas path module; a motion control module is provided on the branch ventilation pipes, and the motion control module is connected to the controller 2.
[0023] Furthermore, the gas path module includes a gas source, a ventilation circuit, and a flow control component. The flow control component includes a flow sensor, a pressure sensor, a proportional valve, and connectors, which are respectively installed on the ventilation circuit. The ventilation circuit pipeline connects the gas source and the ventilation pipeline and branch ventilation pipelines of the conduit module. The ventilation circuit includes a main ventilation circuit and several branch ventilation circuits, which are respectively connected to the gas source and are each equipped with a flow control component.
[0024] Furthermore, the ventilation duct includes a first ventilation duct 7, a second ventilation duct 8, and a third ventilation duct 9. The air outlet end at the tail is respectively provided with a first ventilation duct airbag 10, a second ventilation duct airbag 11, and a third ventilation duct airbag 12, and the air inlet end at the head is respectively connected to the air circuit module.
[0025] Furthermore, the cross-section of the ventilation pipe is as follows: Figure 2 As shown, a main ventilation channel 15 and several branch ventilation channels 16 are provided, with branch ventilation tubes passing through each branch ventilation channel 16. The main ventilation channel 15 is connected to the main ventilation circuit of the ventilation circuit, and the branch ventilation channels 16 are connected to the branch ventilation circuit. The main ventilation channel 15 enables ventilation of the main ventilation circuit, providing ventilation to the main trachea of the lungs; the branch ventilation channels 16 enable the entry and exit of branch ventilation tubes, providing ventilation to other bronchi of the lungs. The number of branch ventilation channels 16 can be designed according to the number of branch ventilation tubes.
[0026] Furthermore, a camera module and an electrical connection controller are also installed on the outlet end of the ventilation duct.
[0027] Furthermore, the outlet end of the ventilation pipe 4 is connected to a second pipe connector 5, and a ventilation pipe airbag 6 is installed on the outside of the second pipe connector 5; the inlet end of the ventilation pipe 4 is connected to the traction line of the motion control module, the ventilation circuit of the air circuit module, and the video signal transmission line 14 of the camera module through the first pipe connector 3. The main ventilation circuit and the sub-ventilation circuits converge at the first pipe connector 3. The main ventilation circuit is connected to the main ventilation cavity 15, and each sub-ventilation circuit is connected to a sub-ventilation conduit. Among them, the traction line 13 is led out from the side wall of the first pipe connector 3 and connected to the motion control module, and the video signal transmission line 14 is led out from the side wall and connected to the camera module. For patients requiring invasive ventilation, the airway is opened using the traditional method. A second tube connector 5 is inserted into the patient's main airway, with one end connected to the ventilation tube 4 and the other end left unattended. The ventilation tube cuff 6 outside the second tube connector 5 is inflated to fix the ventilation tube 4. When the cuff is inflated, it can support the second tube connector 5 and achieve a seal in the main airway.
[0028] Furthermore, the cross-sectional shapes of the first pipe connector 3 and the second pipe connector 5 can be designed with reference to the cross-sectional shape of the ventilation pipe 4, including the main ventilation channel 15 and the branch ventilation channel 16.
[0029] Furthermore, the system also includes a display 1, which is connected to a flow sensor, a pressure sensor, and a camera module. Display 1 is responsible for displaying data such as pressure and flow rate in each ventilation circuit, as well as tidal volume calculated by integrating the flow rate, and simultaneously displays image signals of the bronchi acquired by the camera module. Controller 2 is responsible for data acquisition, analysis, and control of the entire system.
[0030] In this embodiment, the controller drives each individual ventilation tube along the individual ventilation channel 16 into the human bronchus via the motion control module, reaching the lung region requiring individual ventilation. The camera module and individual ventilation tube imaging module guide each tube. The imaging module decodes the information captured by the camera and transmits it to the display. Once the outlet of the individual ventilation tube reaches the desired area, the cuff is inflated, and the individual ventilation tube is fixed in place. The camera module at the tip of each individual ventilation tube observes the condition of different lung regions, monitors lung ventilation in real time, and comprehensively judges the treatment effect of different lung regions based on parameters such as ventilation pressure, flow rate, and tidal volume. The ventilation parameters of each individual ventilation circuit are independently adjusted according to the different treatment effects. Ventilation parameters such as ventilation pressure, flow rate, air-oxygen mixture ratio, respiratory rate, and inspiratory / expiratory ratio are set according to the condition of each individual ventilation tube and other regions. The controller controls the proportional valve and sensors in the airway module to supply and exhaust air according to the set ventilation parameters.
[0031] Example 2 Based on the above embodiments, in one specific embodiment, the motion control module includes a bending structure 22 and two traction wires 13. The bending structure 22 is fixed to the air outlet of the first branch ventilation duct 7, the second branch ventilation duct 8 and the third branch ventilation duct 9. One end of the two traction wires 13 is fixed on the symmetrical sides of the bending structure 22, and the other end is connected to the controller 2.
[0032] Furthermore, such as Figure 3 As shown, the ventilator is equipped with a ventilation channel 17, two traction line channels 20, and a cable channel 21. The air delivery end of the ventilation channel 17 is connected to the ventilator circuit, and the traction line 13 passes through the traction line channel 20. The camera module includes an LED light 18, a camera 19, and a video signal transmission line 14. The LED light 18 and the camera 19 are fixed to the air outlet end of the ventilator and connected to the controller 2 via the video signal transmission line 14, which passes through the cable channel 21. The video signal transmission line 14 is responsible for guiding the movement of the ventilator and monitoring the lung ventilation status. A bending structure 22 is connected in series with the ventilator and is driven by two metal wires to achieve bending at the front end of the ventilator. The bending angle can be adjusted within the range of 0 to 180 degrees. The traction line 13 used to drive the bending structure is led out through the traction line channel 20. The video signal transmission line 14 is led out through the cable channel 21. Taking the first branch ventilation tube 7 as an example, the first branch ventilation tube airbag 10 is fixed at the output end. When the first branch ventilation tube airbag 10 is inflated, it can support the branch ventilation tube and achieve the sealing of the branch airway. The branch ventilation tube enters the human body branch airway along the branch ventilation cavity 16, is guided by the camera module, and is directionally adjusted by the traction line 13. The ventilation cavity is connected to the airway module. Figure 3 AA and BB are the front and rear sections of the ventilation duct, respectively.
[0033] Example 3 Based on the above embodiments, in one specific embodiment, the gas path module structure is as follows: Figure 4As shown, the gas path module includes a gas source, a ventilation circuit, and an airflow control component. The gas source includes a compressed air source 23, an oxygen source 24, and a negative pressure gas source 25. The ventilation circuit includes one main ventilation circuit and three branch ventilation circuits. The airflow control component includes three sets of compressed air flow sensors 26, oxygen flow sensors 28, exhaled air flow sensors 30, air-oxygen mixture pressure sensors 32, exhaled air pressure sensors 33, compressed air proportional valves 27 and oxygen proportional valves 29, and exhaled air proportional valves 31. Each main ventilation circuit and branch ventilation circuit connected to the oxygen source 24 is equipped with an oxygen proportional valve 29 and an oxygen flow sensor 28. A compressed air proportional valve 27 and a compressed air flow sensor 26 are respectively installed on the pipeline connected to the compressed air source 23. An exhalation proportional valve 31, an exhalation flow sensor 30, and an exhalation pressure sensor 33 are respectively installed on the pipeline connected to the negative pressure source 25. An air-oxygen mixture pressure sensor 32 is installed on the mixing pipeline connecting the compressed air source 23 and the oxygen source 24. The main ventilation circuit is connected to the ventilation pipeline 4 through the air circuit connector 34 and the first pipeline connector 3. The three branch ventilation circuits are respectively connected to the first branch ventilation conduit 7, the second branch ventilation conduit 8, and the third branch ventilation conduit 9 through the air circuit connector 34 and the first pipeline connector 3.
[0034] The system consists of one main ventilation circuit and three branch ventilation circuits, matched to the number of branch ventilation tubing at the rear end. Each ventilation circuit requires three proportional valves, three flow sensors, two pressure sensors, and one connector. Compressed air source 23 provides the compressed air needed for mechanical ventilation, oxygen source 24 provides the oxygen needed for treatment, and negative pressure source 25 provides negative pressure. Compressed air flow sensor 26 and compressed air proportional valve 27 work together to achieve closed-loop control of compressed air flow, and oxygen flow sensor 28 and oxygen proportional valve 29 work together to achieve closed-loop control of oxygen flow. The flow rates of oxygen and air can be adjusted according to the patient's ventilation needs, thereby adjusting the flow rate of the supplied gas and the air-oxygen mixture ratio. Air-oxygen mixture pressure sensor 32 detects the pressure of the supplied gas; the output pressure can be adjusted by regulating compressed air proportional valve 27 and oxygen proportional valve 29 according to ventilation needs. Exhaled air flow sensor 30 detects the flow rate of exhaled gas, and exhaled air pressure sensor 33 detects the exhaled air pressure. Both work with exhaled proportional valve 31 to adjust the pressure and flow rate of exhaled gas.
[0035] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.
[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A multi-airway segmented lung mechanical ventilation system, characterized in that, It includes a controller, a gas path module, and a conduit module; the gas path module is connected to the controller, and the conduit module is connected to the conduit module; the conduit module is connected to the controller. The conduit module includes a ventilation conduit and several branch ventilation conduits, which are respectively connected to the airway module; each branch ventilation conduit is equipped with a motion control module, which is connected to the controller.
2. The multi-airway segmented lung mechanical ventilation system according to claim 1, characterized in that, The gas path module includes a gas source, a ventilation circuit, and a flow control component. The flow control component includes a flow sensor, a pressure sensor, a proportional valve, and a gas path connector, which are respectively installed on the ventilation circuit. The flow sensor, the pressure sensor, and the proportional valve are electrically connected to the controller. The ventilation circuit connects the gas source, the ventilation pipeline, and the branch ventilation conduit.
3. A multi-airway segmented lung mechanical ventilation system according to claim 2, characterized in that, The gas source includes a compressed air source, an oxygen source, and a negative pressure source. The ventilation circuit includes a main ventilation circuit and several branch ventilation circuits. The airflow control component includes several sets of compressed air flow sensors, oxygen flow sensors, exhaled air flow sensors, air-oxygen mixture pressure sensors, exhaled air pressure sensors, compressed air proportional valves, oxygen proportional valves, and exhaled air proportional valves. Each main ventilation circuit and each branch ventilation circuit is equipped with an oxygen proportional valve and an oxygen flow sensor on the pipeline connected to the oxygen source. Each pipeline is equipped with a compressed air proportional valve and a compressed air flow sensor on the pipeline connected to the compressed air source. Each pipeline is equipped with an exhaled air proportional valve, an exhaled air flow sensor, and an exhaled air pressure sensor on the pipeline connected to the negative pressure source. An air-oxygen mixture pressure sensor is installed on the mixing pipeline connecting the compressed air source and the oxygen source. The main ventilation circuit is connected to the ventilation pipeline, and each branch ventilation circuit is connected to the branch ventilation conduit.
4. A multi-airway segmented lung mechanical ventilation system according to claim 3, characterized in that, The ventilation pipeline is provided with a main ventilation channel and several branch ventilation channels, and each branch ventilation duct passes through one of the branch ventilation channels; the main ventilation channel is connected to the main ventilation circuit.
5. A multi-airway segmented lung mechanical ventilation system according to claim 3, characterized in that, The motion control module includes a bending structure and two traction cables. The bending structure is fixed to the air outlet end of the venting duct. One end of each of the two traction cables is fixed to the symmetrical sides of the bending structure, and the other end is connected to the controller.
6. A multi-airway segmented lung mechanical ventilation system according to claim 5, characterized in that, The branch ventilation duct is provided with a ventilation cavity and two traction line cavities; the ventilation cavity is connected to the branch ventilation circuit; the traction line passes through the traction line cavity, and the output end is fixed on the curved structure.
7. A multi-airway segmented lung mechanical ventilation system according to claim 3, characterized in that, The venting duct is also provided with a camera module and a cable cavity. The camera module includes an LED light, a camera and a video signal transmission line. The LED light and the camera are fixed to the air outlet end of the venting duct and connected to the controller through the video signal transmission line, which passes through the cable cavity.
8. A multi-airway segmented lung mechanical ventilation system according to claim 1, characterized in that, The system is also equipped with several airbags, which are fixed to the air outlet of the ventilation pipe or the air outlet of the branch ventilation duct.
9. A multi-airway segmented lung mechanical ventilation system according to claim 7, characterized in that, The system is also equipped with a display, which is connected to the video signal transmission line, flow sensor, and pressure sensor.