High frequency jet ventilation laryngoscope with integrated multi-modal functionality and method of use

Abstract

This invention relates to the field of laryngoscope technology, specifically to a high-frequency jet video laryngoscope integrating multimodal functions and its usage method. The invention includes a laryngoscope body, and integrated on the laryngoscope body are a high-frequency jet ventilation module, a visualization and anti-interference module, a multi-functional channel module, and a puncture guidance module. The laryngoscope body, from top to bottom, includes a video display unit, a drug delivery control unit, an operating handle unit, and a flexible insertion unit. The high-frequency jet ventilation module provides high-frequency airflow for ventilation and oxygenation. The visualization and anti-interference module provides a visual field for cricothyroid membrane puncture and avoids airflow interference. The multi-functional channel module provides multi-functional assistance for puncture guidance. This technical solution, by integrating high-frequency jet ventilation, visualization and anti-interference, and multi-functional channel modules, achieves ventilation and oxygenation, clear visual field presentation, precise puncture guidance, and multi-functional assistance, thereby more comprehensively, efficiently, and safely meeting the treatment needs in complex medical scenarios.

Description

Technical Field

[0001] This invention relates to the field of laryngoscope technology, specifically to a high-frequency jet video laryngoscope with integrated multimodal functions and its usage method. Background Technology

[0002] In clinical emergency care, the laryngoscope is a core device for ensuring airway patency and for implementing ventilation and intubation. However, existing laryngoscope technology has significant limitations and is difficult to handle complex medical scenarios. Although those skilled in the art have explored this area, such as the laryngeal membrane placement system with a combined central venous puncture device disclosed in Chinese Patent Publication No. CN120093385A, key problems have not yet been solved. Specifically, high-frequency jet ventilation, suctioning, and drug administration require multiple instruments and step-by-step operations, taking more than 5 minutes, far exceeding the "golden 4 minutes"; cricothyroid membrane puncture positioning is difficult in emergencies, traditional blind puncture has a low success rate, and reliance on ultrasound can easily delay rescue; high-frequency airflow causes lens fogging and light spot shaking, and there is a lack of anti-interference design; in scenarios where intubation and ventilation are not possible, the switching between non-invasive and invasive ventilation is not smooth; the suctioning and drug administration channels occupy space, limit the field of vision, and are prone to blocking the ventilation port, requiring frequent withdrawal of the scope. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a high-frequency jet video laryngoscope and its usage method that integrates multimodal functions. This integrated video laryngoscope is used for emergency treatment of difficult airways and can simultaneously realize high-frequency jet ventilation, illumination, sputum suction, drug administration and cricothyroid membrane puncture guidance functions.

[0004] The technical solution adopted in this invention is as follows:

[0005] A high-frequency jet video laryngoscope integrating multimodal functions includes a laryngoscope body, and a high-frequency jet ventilation module, a visualization and anti-interference module, a multi-functional channel module, and a puncture guidance module integrated on the laryngoscope body, wherein:

[0006] The laryngoscope body is arranged from top to bottom as follows: a video display unit, a drug delivery control unit, an operating handle unit, and a flexible insertion unit;

[0007] The high-frequency jet ventilation module provides high-frequency airflow for ventilation and oxygen supply. It includes a drug reservoir and high-frequency generator in the drug delivery control unit, an output rotary pump in the operating handle, and an atomizing piezoelectric ceramic plate and pressure sensor in the flexible insertion unit. The high-frequency generator controls the output of high-frequency airflow, which mixes with the medication in the drug reservoir and enters the micro-drug delivery channel. The micro-drug delivery channel is atomized through the piezoelectric ceramic plate and sprayed at high speed towards the patient's throat via a Laval nozzle installed at the end. The pressure sensor is located at the end of the flexible insertion unit; it automatically stops spraying and triggers an alarm when the pressure exceeds a threshold to prevent barotrauma.

[0008] The visualization and anti-interference module, used to provide a view of the cricothyroid membrane puncture and avoid airflow interference, includes a touch screen located in the video display section, and a camera and illumination array located in the flexible insertion section; the camera transmits the captured image to the touch screen, and the illumination array is located around the camera to provide illumination; both the camera and the illumination array are located on the mounting plate of the flexible insertion section, and the side of the mounting plate is provided with a deflector plate to prevent airflow interference to the camera;

[0009] The multi-functional channel module is a multi-functional aid for puncture guidance, including a laser generator located in the drug supply control section, a side suction channel located in the flexible insertion section, a near-infrared laser, and a blood sample detection sensor. The laser generator is connected to the near-infrared laser located above the guide plate via a cable passing through the operating handle. The near-infrared laser projects a cross-shaped light spot toward the cricothyroid membrane area to mark the needle entry point. A blood sample detection sensor is also located above the guide plate to detect blood oxygen. The side suction channel is located on the other side of the guide plate away from the camera, and the side suction channel suctions out sputum through a suction tube.

[0010] This technical solution integrates modules such as high-frequency jet ventilation, visualization and anti-interference, and a multi-functional channel to achieve ventilation and oxygen supply, clear visual presentation, precise puncture guidance, and multi-functional assistance, thereby more comprehensively, efficiently, and safely meeting the treatment needs in complex medical scenarios. Specifically, the high-frequency jet ventilation module uses a high-frequency generator to produce airflow, which is mixed with medication and then nebulized for drug delivery, while a pressure sensor ensures safety; the visualization and anti-interference module provides a clear visual view through camera acquisition, illumination array lighting, and flow deflectors; the multi-functional channel module integrates laser guidance, sputum suction, and blood oxygen detection functions. All modules work together in an orderly manner around the laryngoscope to achieve ventilation, visualization, puncture guidance, and multi-functional assistance, meeting the needs of complex medical scenarios.

[0011] In addition, the high-frequency jet video laryngoscope and its method of use integrating multimodal functions proposed above according to the present invention may also have the following additional technical features:

[0012] According to one embodiment of the present invention, the touch screen of the video display unit is connected to the connector via a hinge shaft, and the end of the connector is connected to the top of the drug supply control unit; the tilt angle between the touch screen and the drug supply control unit is adjusted via the hinge shaft.

[0013] In this technical solution, the appropriate tilt angle makes it easier for medical staff to operate the drug supply control unit, reducing fatigue caused by long-term operation. The tilt angle of the touch screen can be easily adjusted through the hinge axis to obtain the best viewing angle and improve the accuracy of information acquisition.

[0014] According to one embodiment of the present invention, the drug supply control unit includes a chamber, a control board is provided at the front of the chamber, a laser generator is provided in the middle of the chamber, and a high-frequency generator and a drug chamber are respectively provided on both sides of the chamber; the high-frequency generator and the drug chamber are respectively connected to a gas-liquid mixer below; the high-frequency generator provides a high-speed airflow containing oxygen through a rotary pump, and the drug chamber adds liquid medicine into it from the side of the chamber.

[0015] This technical solution utilizes high-speed airflow to carry and atomize the drug solution, enabling it to be output in a more uniform and finer particle form, thus improving the drug distribution effect at the target site. The rational layout of the chamber ensures that the components are compactly connected, and the control panel allows for centralized control, facilitating operation by medical staff and improving work efficiency.

[0016] According to one embodiment of the present invention, the operating handle includes a handle body, a micro-drug delivery channel and a connector located within the handle body, one end of the micro-drug delivery channel being connected to a gas-liquid mixer and the other end being connected to a Laval nozzle; the lower end of the handle body is connected to a flexible insertion portion via the connector.

[0017] This technical solution optimizes the internal structure of the handle, sets up micro-drug delivery channels, Laval nozzles, and connectors, to achieve efficient and precise delivery of gas-liquid mixtures and a stable structural connection, thereby more accurately and stably meeting the drug delivery requirements in medical operations.

[0018] According to one embodiment of the present invention, the flexible insertion part includes a puncture guide head that is bent in an arc shape, a mounting plate is vertically disposed in the middle of the puncture guide head, and an atomizing piezoelectric ceramic sheet is disposed on the inner side of the mounting plate; a guide plate is vertically disposed on the outer side of the mounting plate, a Laval nozzle is disposed on the side of the guide plate near the mounting plate, and a side suction channel is disposed on the other side of the guide plate away from the mounting plate; a near-infrared laser, a pressure sensor and a blood sample detection sensor are disposed at the end of the guide plate.

[0019] This technical solution is based on an arc-shaped puncture guide head. It utilizes the atomizing piezoelectric ceramic plate on the inner side of the mounting plate to atomize the drug solution. The outer guide plate guides the airflow and installs a Laval nozzle to accelerate the spraying of the drug solution. At the same time, a near-infrared laser is set at the end of the guide plate for precise positioning, a pressure sensor monitors the pressure, and a blood sample detection sensor acquires blood sample information, thus constructing an integrated system for puncture, drug administration, and monitoring.

[0020] According to one embodiment of the present invention, the puncture guide head is a nickel-titanium alloy flexible tube with a bending angle range of 0°-180° and a length of 180mm. It is available in models compatible with both adults and children, with the adult version having a diameter of 14mm and the children's version having a diameter of 10mm.

[0021] According to one embodiment of the present invention, in the high-frequency jet ventilation module, the drug tank stores several kinds of drugs to realize combined sequential drug delivery; the high-frequency generator channel diameter is 2mm, and the Laval nozzle outlet diameter is 0.8mm; the rotary pump frequency range is 10-150 times / min, the driving pressure range is 0.2-0.5MPa, the adjustment step is 10, and the start-up frequency is set to 60 times / min; the pressure sensor range is 0-1MPa, and the overpressure threshold is 0.6MPa; the micro-drug delivery channel diameter is 0.6mm, and the end is provided with a piezoelectric ceramic atomizing nozzle with a droplet diameter of 3-5μm.

[0022] According to one embodiment of the present invention, in the visualization and anti-interference module, the camera is a 4K ultra-high-definition camera with a 120° wide-angle lens, a frame rate of 30fps, a lens covered with a nano anti-fog coating, and a contact angle greater than 150°; the illumination array is a ring-shaped LED illumination array, including 4-6 LEDs with a color temperature of 5500K and an illuminance of 1500lx, and the illumination array is also equipped with an infrared fill light with a wavelength of 850nm.

[0023] According to one embodiment of the present invention, in the multifunctional channel module, the wavelength of the near-infrared laser is 808nm and the power is 5mW. It is transmitted to the end of the flexible insertion part through an optical fiber and projects a cross-shaped positioning spot onto the cricothyroid membrane area with a positioning accuracy of ±1mm. The insertion angle of the puncture needle is displayed in real time by a camera, ranging from 0° to 45°, and the marked insertion point is displayed on the touch screen.

[0024] To achieve the above objectives, the present invention also provides a method for using a high-frequency jet video laryngoscope with integrated multimodal functions.

[0025] A method for using a high-frequency jet video laryngoscope with integrated multimodal functions includes the following steps:

[0026] S1: Non-invasive ventilation and airway assessment: Adjust the tilt angle between the touch screen and the medication delivery control unit to a suitable position; add the required medication to the medication compartment, set the high-frequency generator parameters, including the start-up frequency, rotary pump frequency range, driving pressure range, and step size, for observation by medical staff; insert the flexible insert into the patient's supraglottic region and initiate high-frequency jet ventilation; turn on the illumination array to provide sufficient illumination for the camera; the camera begins operation, capturing images of the patient's larynx and transmitting them to the touch screen of the video display unit, allowing medical staff to assess the airway and identify the glottis and secretions through the touch screen;

[0027] S2. High-frequency jet ventilation and drug delivery: The high-frequency generator starts working, providing a high-speed airflow containing oxygen via a rotary pump; the high-speed airflow enters the gas-liquid mixer, mixes with the drug solution added in the drug chamber, forming a drug-containing airflow; the drug-containing airflow passes through the micro-drug delivery channel, and passes through the atomizing piezoelectric ceramic plate in the middle, atomizing the drug solution into a mist with a droplet diameter of 3-5μm; the mist-like drug solution is sprayed at high speed towards the patient's throat along the Laval nozzle installed at the end of the micro-drug delivery channel; the pressure sensor located at the end of the flexible insert monitors the pressure of the sprayed airflow in real time, and when the pressure exceeds the 0.6MPa threshold, the spraying automatically stops and an alarm is issued to prevent barotrauma to the patient due to excessive air pressure;

[0028] S3. Suctioning and secretion management: When the patient has sputum in his / her throat, the secretions are removed by using a suction tube with negative pressure of -0.04MPa through the side suction channel located on the other side of the deflector plate away from the camera, so as to keep the patient's airway open.

[0029] S4. Intubation or Puncture Decision: The laser generator in the drug delivery control unit transmits energy to the near-infrared laser located above the deflector plate via a cable passing through the operating handle. The near-infrared laser projects a cross-shaped light spot towards the cricothyroid membrane area to mark the puncture point. Simultaneously, the marked puncture point is displayed on the touch screen, and the puncture needle insertion angle is displayed in real time via a camera to assist medical staff in performing the puncture operation. The endotracheal tube is inserted through the guide groove, and the system is switched to routine oxygen supply. The cricothyroid membrane puncture guidance is activated, the near-infrared light spot positions the cricothyroid membrane, and the camera guides the cricothyroid membrane puncture needle to be inserted vertically for 3-5mm, connecting to the jet ventilation tube. The blood sample detection sensor located above the deflector plate monitors the patient's blood oxygenation status in real time and feeds the data back to the touch screen for medical staff to view.

[0030] In the non-invasive ventilation and airway assessment phase, after adjusting the device angle and setting the drug delivery and high-frequency parameters, this technical solution uses an illumination array and camera to capture images of the larynx and display them on a touchscreen, providing medical staff with intuitive airway assessment and glottic identification. In the high-frequency jet ventilation and drug delivery phase, a high-frequency generator drives a rotary pump to produce a high-speed oxygen-containing airflow. After mixing with the drug solution in a gas-liquid mixer, the mixture is atomized into micron-sized droplets through a micro-drug delivery channel via a piezoelectric ceramic atomizer, and then precisely sprayed into the larynx through a Laval nozzle. Simultaneously, a pressure sensor... The system monitors air pressure to ensure safety; during suctioning, negative pressure is used in the side suction channel to clear secretions and maintain airway patency; the laser generator in the drug delivery control unit powers the near-infrared laser via cable, projecting a cross-shaped light spot to mark the needle insertion point and assist in puncture; subsequently, after inserting the endotracheal tube through the guide slot, the near-infrared light spot and camera guide the cricothyroid membrane puncture; finally, the blood sample detection sensor provides real-time feedback of blood oxygen data to the touch screen, forming a complete closed-loop diagnosis and treatment logic from airway assessment, ventilation and drug administration, secretion management to puncture guidance and vital sign monitoring.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] (1) Efficient emergency care and accelerated operation: realize one-stop operation of "ventilation-sputum suction-medication-intubation", increase the success rate of on-site rescue by 60%, shorten the operation time from 15 seconds to within 10 seconds, meet the emergency needs of "golden 4 minutes", and increase the success rate of cricothyroid membrane puncture to 98%;

[0033] (2) Reduce risk and improve field of vision: The field of vision is clearer than 95% despite airflow interference. The flexible insertion part reduces the mucosal damage rate to <0.5%. The infrared supplementary light and optical vision coaxial design improve the glottis recognition accuracy to 98%. The flexible insertion part reduces the mucosal damage rate by 60%.

[0034] (3) Precise drug delivery and diverse adaptability: The droplet diameter of the nebulizer nozzle is 3-5μm, which improves the mucosal absorption efficiency by 50% and reduces the drug dosage by 30%; it is suitable for complex scenarios such as difficult airways, emergency bleeding, and pediatric patients, and can also be replaced with a pediatric insert. Attached Figure Description

[0035] Figure 1 This is the front view of the present invention.

[0036] Figure 2 This is a cross-sectional view of the present invention.

[0037] Figure 3 This is a three-dimensional view of the flexible insertion part.

[0038] Figure 4 This is a flowchart illustrating the principle of the present invention.

[0039] In the diagram: 1. Video display unit; 11. Touch screen; 12. Hinge shaft; 13. Connector; 2. Drug delivery control unit; 21. Control board; 22. Chamber body; 23. High-frequency generator; 24. Laser generator; 25. Gas-liquid mixer; 3. Operating handle unit; 31. Handle body; 32. Micro-drug delivery channel; 4. Flexible insertion unit; 41. Puncture guide head; 42. Connector; 43. Atomizing piezoelectric ceramic plate; 44. Mounting plate; 441. Camera; 442. Illumination array; 45. Flow guide plate; 451. Side suction channel; 46. Laval nozzle; 47. Near-infrared laser; 48. Pressure sensor; 49. Blood sample detection sensor. Detailed Implementation

[0040] 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, not all, of the embodiments of the present invention. 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.

[0041] Example 1

[0042] like Figures 1 to 3 As shown, this embodiment provides a high-frequency jet video laryngoscope with integrated multimodal functions, including a laryngoscope body, and a high-frequency jet ventilation module, a visualization and anti-interference module, a multi-functional channel module, and a puncture guidance module integrated on the laryngoscope body, wherein:

[0043] The laryngoscope body is provided with a video display unit 1, a drug supply control unit 2, an operating handle unit 3 and a flexible insertion unit 4 from top to bottom;

[0044] The high-frequency jet ventilation module provides high-frequency airflow for ventilation and oxygen supply. It includes a drug chamber and a high-frequency generator 23 located in the drug supply control unit 2, an output rotary pump located in the operating handle unit 3, and an atomizing piezoelectric ceramic plate 43 and a pressure sensor 48 located in the flexible insertion unit 4. The high-frequency generator 23 controls the output of high-frequency airflow. The high-frequency airflow mixes with the liquid medicine in the drug chamber and enters the micro-drug delivery channel 32. The micro-drug delivery channel 32 is sprayed at high speed towards the patient's throat through the atomizing piezoelectric ceramic plate 43 and a Laval nozzle 46 installed at the end. The pressure sensor 48 is located at the end of the flexible insertion unit 4. When the pressure exceeds the threshold, the spraying automatically stops and an alarm is triggered to prevent barotrauma.

[0045] The visualization and anti-interference module, used to provide a visual field for cricothyroid membrane puncture and avoid airflow interference, includes a touch screen 11 located in the video display unit 1, and a camera 441 and an illumination array 442 located in the flexible insertion unit 4; the camera 441 transmits the captured image to the touch screen 11, and the illumination array 442 is located around the camera 441 to provide illumination; both the camera 441 and the illumination array 442 are located on the mounting plate 44 of the flexible insertion unit 4, and the side of the mounting plate 44 is provided with a deflector 45 for the camera 441 to resist airflow interference.

[0046] The multi-functional channel module, used for multi-functional assistance in puncture guidance, includes a laser generator 24 located in the drug supply control unit 2, a side suction channel 451 located in the flexible insertion unit 4, a near-infrared laser 47, and a blood sample detection sensor 49. The laser generator 24 is connected to the near-infrared laser 47 located above the guide plate 45 via a cable passing through the operating handle unit 3. The near-infrared laser 47 projects a cross-shaped light spot toward the cricothyroid membrane area to mark the needle insertion point. A blood sample detection sensor 49 is also provided above the guide plate 45 to detect blood oxygen. The side suction channel 451 is located on the other side of the guide plate 45 away from the camera 441, and the side suction channel 451 suctions out sputum through a suction tube.

[0047] This technical solution integrates modules such as high-frequency jet ventilation, visualization and anti-interference, and a multi-functional channel to achieve ventilation and oxygen supply, clear visual presentation, precise puncture guidance, and multi-functional assistance, thereby more comprehensively, efficiently, and safely meeting the treatment needs in complex medical scenarios. Specifically, the high-frequency jet ventilation module uses a high-frequency generator 23 to generate airflow, which is mixed with medication and then nebulized for medication delivery, while a pressure sensor 48 ensures safety; the visualization and anti-interference module provides a clear visual view through camera 441 acquisition, illumination array 442 illumination, and flow deflector 45 anti-interference; the multi-functional channel module integrates laser guidance, sputum suction, and blood oxygen detection functions. All modules work together in an orderly manner around the laryngoscope to achieve ventilation, visualization, puncture guidance, and multi-functional assistance, meeting the needs of complex medical scenarios.

[0048] In addition, the high-frequency jet video laryngoscope and its method of use integrating multimodal functions proposed above according to the present invention may also have the following additional technical features:

[0049] According to one embodiment of the present invention, the touch screen 11 of the video display unit 1 is connected to the connector 13 via a hinge shaft 12, and the end of the connector 13 is connected to the top of the drug supply control unit 2; the tilt angle between the touch screen 11 and the drug supply control unit 2 is adjusted by the hinge shaft 12.

[0050] In this technical solution, the appropriate tilt angle makes it easier for medical staff to operate the drug supply control unit 2, reducing fatigue caused by long-term operation. The tilt angle of the touch screen 11 can be easily adjusted through the hinge axis 12 to obtain the best viewing angle and improve the accuracy of information acquisition.

[0051] According to one embodiment of the present invention, the drug supply control unit 2 includes a chamber 22, a control plate 21 is provided at the front of the chamber 22, a laser generator 24 is provided in the middle of the chamber 22, and a high-frequency generator 23 and a drug chamber are respectively provided on both sides of the chamber 22; the high-frequency generator 23 and the drug chamber are respectively connected to the gas-liquid mixer 25 below; the high-frequency generator 23 provides a high-speed airflow containing oxygen through a rotary pump, and the drug chamber adds liquid medicine into it from the side of the chamber 22.

[0052] This technical solution utilizes the high-speed airflow to carry and atomize the drug solution, enabling the drug solution to be output in a more uniform and finer particle form, thereby improving the distribution effect of the drug at the target site. The reasonable layout of the chamber 22 makes the connection of each component compact, and the control panel 21 provides centralized control, which is convenient for medical staff to operate and improves work efficiency.

[0053] According to one embodiment of the present invention, the operating handle 3 includes a handle body 31, a micro-drug delivery channel 32 and a connector 42 located within the handle body 31, one end of the micro-drug delivery channel 32 being connected to a gas-liquid mixer 25 and the other end being connected to a Laval nozzle 46; the lower end of the handle body 31 is connected to a flexible insertion part 4 via the connector 42.

[0054] This technical solution optimizes the internal structure of the handle 31 and sets up a micro-drug delivery channel 32, a Laval nozzle 46, and a connector 42 to achieve efficient and precise delivery of gas-liquid mixtures and a stable connection of the structure, thereby more accurately and stably meeting the drug delivery requirements in medical operations.

[0055] According to one embodiment of the present invention, the flexible insertion part 4 includes a puncture guide head 41 with an arc-shaped bend. A mounting plate 44 is vertically disposed in the middle of the puncture guide head 41. An atomizing piezoelectric ceramic plate 43 is disposed on the inner side of the mounting plate 44. A flow guide plate 45 is vertically disposed on the outer side of the mounting plate 44. A Laval nozzle 46 is disposed on the side of the flow guide plate 45 near the mounting plate 44. A side suction channel 451 is disposed on the other side of the flow guide plate 45 away from the mounting plate 44. A near-infrared laser 47, a pressure sensor 48, and a blood sample detection sensor 49 are disposed at the end of the flow guide plate 45.

[0056] This technical solution is based on the arc-shaped puncture guide head 41. It uses the atomizing piezoelectric ceramic plate 43 on the inner side of the mounting plate 44 to atomize the drug solution. The outer guide plate 45 guides the airflow and installs a Laval nozzle 46 to accelerate the spraying of the drug solution. At the same time, a near-infrared laser 47 is set at the end of the guide plate 45 for precise positioning, a pressure sensor 48 monitors the pressure, and a blood sample detection sensor 49 acquires blood sample information, thus constructing an integrated system for puncture, drug administration, and monitoring.

[0057] According to one embodiment of the present invention, the puncture guide head 41 is a nickel-titanium alloy flexible tube with a bending angle range of 0°-180° and a length of 180mm. It is available in models compatible with both adults and children, with the adult version having a diameter of 14mm and the children's version having a diameter of 10mm.

[0058] According to one embodiment of the present invention, in the high-frequency jet ventilation module, the drug tank stores several kinds of drugs to realize combined sequential drug delivery; the high-frequency generator 23 has a channel diameter of 2mm, and the Laval nozzle 46 has an outlet diameter of 0.8mm; the rotary pump has a frequency range of 10-150 times / min, a driving pressure range of 0.2-0.5MPa, an adjustment step of 10, and a start-up frequency set to 60 times / min; the pressure sensor 48 has a range of 0-1MPa and an overpressure threshold of 0.6MPa; the micro-drug delivery channel 32 has a diameter of 0.6mm and is equipped with a piezoelectric ceramic atomizing nozzle at the end, with a droplet diameter of 3-5μm.

[0059] According to one embodiment of the present invention, in the visualization and anti-interference module, the camera 441 is a 4K ultra-high-definition camera with a 120° wide-angle lens, a frame rate of 30fps, a lens covered with a nano anti-fog coating, and a contact angle greater than 150°; the illumination array 442 is a ring-shaped LED illumination array, including 4-6 LEDs with a color temperature of 5500K and an illuminance of 1500lx. The illumination array 442 is also equipped with an infrared fill light with a wavelength of 850nm.

[0060] According to one embodiment of the present invention, in the multifunctional channel module, the near-infrared laser 47 has a wavelength of 808nm and a power of 5mW. It is transmitted to the end of the flexible insertion part 4 through an optical fiber and projects a cross-shaped positioning spot onto the cricothyroid membrane area with a positioning accuracy of ±1mm. The puncture needle insertion angle is displayed in real time by the camera 441, with a range of 0°-45°, and the marked insertion point is displayed on the touch screen 11.

[0061] Example 2

[0062] like Figure 4 As shown, this embodiment provides a method for using a high-frequency jet video laryngoscope with integrated multimodal functions, including the following steps:

[0063] S1: Non-invasive ventilation and airway assessment: Adjust the tilt angle between the touch screen 11 and the drug delivery control unit 2 to a suitable position; add the required medication to the drug compartment, set the parameters of the high-frequency generator 23, including the start-up frequency, rotary pump frequency range, driving pressure range, and step size, for observation by medical staff; insert the flexible insert 4 into the patient's supraglottic region and start high-frequency jet ventilation; turn on the illumination array 442 to provide sufficient illumination for the camera 441; the camera 441 starts working, capturing images of the patient's larynx and transmitting them to the touch screen 11 of the video display unit 1, allowing medical staff to assess the airway and identify the glottis and secretions through the touch screen 11;

[0064] S2. High-frequency jet ventilation and drug delivery: The high-frequency generator 23 starts working, providing a high-speed airflow containing oxygen through a rotary pump; the high-speed airflow enters the gas-liquid mixer 25 and mixes with the drug solution added in the drug chamber to form a drug-containing airflow; the drug-containing airflow passes through the micro-drug delivery channel 32, and passes through the atomizing piezoelectric ceramic plate 43 in the middle, atomizing the drug solution into a mist with a droplet diameter of 3-5μm; the mist-like drug solution is sprayed at high speed towards the patient's throat along the Laval nozzle 46 installed at the end of the micro-drug delivery channel 32; the pressure sensor 48 located at the end of the flexible insertion part 4 monitors the pressure of the sprayed airflow in real time, and when the pressure exceeds the 0.6MPa threshold, the spraying automatically stops and an alarm is issued to prevent barotrauma to the patient due to excessive air pressure;

[0065] S3. Suctioning and secretion management: When the patient has sputum in his / her throat, the secretions are removed by using a suction tube with negative pressure of -0.04MPa through the side suction channel 451 on the other side of the deflector plate 45 located away from the camera 441, and the patient's airway is kept open.

[0066] S4. Intubation or puncture decision: The laser generator 24 in the drug supply control unit 2 transmits energy to the near-infrared laser 47 located above the guide plate 45 via a cable passing through the operating handle 3. The near-infrared laser 47 projects a cross-shaped light spot toward the cricothyroid membrane area to mark the needle insertion point. At the same time, the marked needle insertion point is displayed on the touch screen 11, and the puncture needle insertion angle is displayed in real time through the camera 441 to assist medical staff in performing the puncture operation. The endotracheal tube is inserted through the guide groove, and the routine oxygen supply is switched. The cricothyroid membrane puncture guidance is activated. The near-infrared light spot positions the cricothyroid membrane, and the camera 441 guides the cricothyroid membrane puncture needle to be inserted vertically for 3-5mm, and the jet ventilation tube is connected. The blood sample detection sensor 49 set above the guide plate 45 detects the patient's blood oxygenation in real time and feeds the data back to the touch screen 11 for medical staff to view.

[0067] In the non-invasive ventilation and airway assessment stage, after adjusting the device angle and setting the drug delivery and high-frequency parameters, the illumination array 442 and camera 441 are used to collect images of the larynx and display them on the touch screen 11, providing medical staff with intuitive airway assessment and glottic identification. In the high-frequency jet ventilation and drug delivery stage, the high-frequency generator 23 drives a rotary pump to generate a high-speed oxygen-containing airflow. After being mixed with the drug solution by the gas-liquid mixer 25, the airflow passes through the micro-drug delivery channel 32 and is atomized into micron-sized droplets by the piezoelectric ceramic sheet 43. These droplets are then precisely sprayed into the larynx through the Laval nozzle 46. Simultaneously, a pressure sensor... 48. Real-time air pressure monitoring ensures safety; during the suctioning stage, negative pressure is used through the side suction channel 451 to remove secretions and maintain airway patency; the laser generator 24 of the drug supply control unit 2 powers the near-infrared laser 47 via cable, projecting a cross-shaped light spot to mark the needle insertion point and assist in puncture; subsequently, after the endotracheal tube is inserted through the guide groove, the near-infrared light spot and camera 441 guide the cricothyroid membrane puncture, and finally the blood sample detection sensor 49 provides real-time feedback of blood oxygen data to the touch screen 11, forming a complete closed-loop diagnosis and treatment logic from airway assessment, ventilation and drug administration, secretion management to puncture guidance and vital sign monitoring.

[0068] Furthermore, in step S4, the decision-making process for intubation or puncture involves using a camera to acquire images in real time, an AI model to automatically segment key structures and output coordinates and confidence levels, a laser spot to locate the puncture point, a comparison between real-time laser spot imaging and AI needle tip tracking with superimposed green trajectory lines, and alarm prompts. This enables more precise location of the puncture point, real-time monitoring of needle insertion, and timely warnings, thereby allowing for safer and more efficient cricothyroid membrane puncture to establish an airway. The specific steps include the following:

[0069] S41, AI recognition stage: The camera captures neck images in real time; the AI ​​model (YOLOv8-Seg) is used to automatically segment the thyroid cartilage, cricoid cartilage, and cricothyroid membrane; the output results are: the coordinates (x, y) of the midpoint of the cricothyroid membrane and the corresponding confidence score.

[0070] S42, Laser Spot Positioning: A red cross-shaped laser spot is projected onto the skin surface to indicate the puncture point. The physician makes minor adjustments to the head position to ensure that the laser spot coincides with the AI ​​mark (the error is controlled within 2mm).

[0071] S43, Needle Insertion Monitoring: The light spot achieves real-time imaging and positioning on the monitor, while AI tracks the needle tip; a green trajectory line is overlaid on the screen to compare the real-time position of the needle tip with the midline of the cricothyroid membrane; an audio or visual alarm is issued: when the deviation angle is greater than 3° or the needle insertion depth is greater than 15mm, an immediate prompt is issued; after the physician confirms a breakthrough sensation and aspiration of air, the cannula is inserted and secured. At this point, the procedure is complete, and the airway is successfully established.

[0072] This invention is adaptable to multiple scenarios: it is suitable for anesthesiology, emergency department, ICU, and primary hospitals.

[0073] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, the invention is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the invention by those skilled in the art without departing from the spirit and essence of the invention, and such modifications or substitutions should all be within the scope of the invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the invention should also be covered within the protection scope of the invention. Therefore, the protection scope of the invention should be determined by the scope of the claims.

Claims

1. A high frequency jet ventilation video laryngoscope integrated with multi-modal functions, characterized in that, It includes the laryngoscope body, and integrated on the laryngoscope body are a high-frequency jet ventilation module, a visualization and anti-interference module, a multi-functional channel module, and a puncture guidance module, among which: The laryngoscope body is provided with a video display unit (1), a drug supply control unit (2), an operating handle unit (3), and a flexible insertion unit (4) from top to bottom; The high-frequency jet ventilation module is used to provide high-frequency airflow for ventilation and oxygen supply. It includes a drug tank and a high-frequency generator (23) located in the drug supply control unit (2), an output rotary pump located in the operating handle unit (3), and an atomizing piezoelectric ceramic plate (43) and a pressure sensor (48) located in the flexible insertion unit (4). The high-frequency generator (23) controls the output of high-frequency airflow. The high-frequency airflow mixes the drug liquid in the drug tank and enters the micro-drug delivery channel (32). The micro-drug delivery channel (32) is sprayed at high speed towards the patient's throat through the atomizing piezoelectric ceramic plate (43) and a Laval nozzle (46) installed at the end. The pressure sensor (48) is located at the end of the flexible insertion unit (4). When the pressure exceeds the threshold, the spraying will automatically stop and an alarm will be triggered to prevent barotrauma. The visualization and anti-interference module is used to provide a visual field for cricothyroid membrane puncture and avoid airflow interference. It includes a touch screen (11) located in the video display unit (1), and a camera (441) and an illumination array (442) located in the flexible insertion unit (4). The camera (441) transmits the captured image to the touch screen (11), and the illumination array (442) is located around the camera (441) to provide illumination. The camera (441) and the illumination array (442) are both located on the mounting plate (44) of the flexible insertion unit (4). The side of the mounting plate (44) is provided with a guide plate (45) for the anti-airflow interference camera (441). The multi-functional channel module, used for multi-functional assistance in puncture guidance, includes a laser generator (24) located in the drug supply control unit (2), a side suction channel (451) located in the flexible insertion unit (4), a near-infrared laser (47), and a blood oxygen detection sensor (49); the laser generator (24) is connected to the near-infrared laser (47) located above the guide plate (45) via a cable passing through the operating handle unit (3), and the near-infrared laser (47) projects a cross-shaped light spot toward the cricothyroid membrane area to mark the needle insertion point; a blood oxygen detection sensor (49) is also provided above the guide plate (45) to detect blood oxygen; the side suction channel (451) is located on the other side of the guide plate (45) away from the camera (441), and the side suction channel (451) suctions out sputum through the suction tube; The flexible insertion part (4) includes a puncture guide head (41) with an arc-shaped bend. A mounting plate (44) is vertically arranged in the middle of the puncture guide head (41). An atomizing piezoelectric ceramic sheet (43) is arranged on the inner side of the mounting plate (44). A guide plate (45) is vertically arranged on the outer side of the mounting plate (44). A Laval nozzle (46) is arranged on the side of the guide plate (45) close to the mounting plate (44). A side suction channel (451) is arranged on the other side of the guide plate (45) away from the mounting plate (44). A near-infrared laser (47), a pressure sensor (48), and a blood oxygen detection sensor (49) are arranged at the end of the guide plate (45). By using a camera (441) to acquire images in real time, an AI model to automatically segment key structures and output coordinates and confidence levels, a laser spot to locate the puncture point, a comparison between real-time imaging and AI needle tip tracking with superimposed green trajectory lines, and setting alarm prompts, more accurate puncture point location, real-time monitoring of needle insertion, and timely warnings are achieved, thereby enabling safer and more efficient cricothyroid membrane puncture to establish an airway. The specific steps are as follows: AI recognition process: The camera captures neck images in real time; the AI ​​model YOLOv8-Seg is used to automatically segment the thyroid cartilage, cricoid cartilage, and cricothyroid membrane; the output results are: the coordinates (x, y) of the midpoint of the cricothyroid membrane and the corresponding confidence score. Laser spot positioning: A red cross-shaped laser spot is projected onto the skin surface to indicate the location of the puncture point; the doctor makes minor adjustments to the head position to ensure that the laser spot coincides with the AI ​​mark; Needle insertion monitoring: The light spot achieves real-time imaging and positioning on the monitor, while AI tracks the needle tip; a green trajectory line is superimposed on the screen to compare the real-time position of the needle tip with the midline of the cricothyroid membrane; voice or visual alarms are issued: when the deviation angle is greater than 3° or the needle insertion depth is greater than 15mm, an immediate prompt is issued; after the physician confirms a breakthrough sensation and aspirates air, the cannula is inserted and secured; at this point, the procedure is complete and the airway is successfully established; The touch screen (11) of the video display unit (1) is connected to the connector (13) via a hinge shaft (12), and the end of the connector (13) is connected to the top of the drug supply control unit (2); the tilt angle between the touch screen (11) and the drug supply control unit (2) is adjusted via the hinge shaft (12); The drug supply control unit (2) includes a chamber (22), a control panel (21) is provided at the front of the chamber (22), a laser generator (24) is provided in the middle of the chamber (22), and a high-frequency generator (23) and a drug chamber are provided on both sides of the chamber (22); the high-frequency generator (23) and the drug chamber are respectively connected to the gas-liquid mixer (25) below; the high-frequency generator (23) provides a high-speed airflow containing oxygen through a rotary pump, and the drug chamber adds liquid medicine into it from the side of the chamber (22); The operating handle (3) includes a handle (31), a micro-drug delivery channel (32) and a connector (42) located in the handle (31). One end of the micro-drug delivery channel (32) is connected to a gas-liquid mixer (25), and the other end is connected to a Laval nozzle (46). The lower end of the handle (31) is connected to the flexible insertion part (4) through the connector (42).

2. The high-frequency jet video laryngoscope with integrated multimodal function as described in claim 1, characterized in that, The puncture guide head (41) is a nickel-titanium alloy flexible tube with a bending angle range of 0°-180° and a length of 180mm. It is available in models compatible with both adults and children, with the adult version having a diameter of 14mm and the children's version having a diameter of 10mm.

3. The high-frequency jet video laryngoscope with integrated multimodal function as described in claim 1, characterized in that, In the high-frequency jet ventilation module, the drug storage compartment contains several drugs to achieve combined sequential drug delivery; the high-frequency generator (23) has a channel diameter of 2 mm and the Laval nozzle (46) has an outlet diameter of 0.8 mm; the rotary pump has a frequency range of 10-150 times / minute, a driving pressure range of 0.2-0.5 MPa, an adjustment step of 10, and a start-up frequency of 60 times / min; the pressure sensor (48) has a range of 0-1 MPa and an overpressure threshold of 0.6 MPa; the micro-drug delivery channel (32) has a diameter of 0.6 mm and is equipped with a piezoelectric ceramic atomizing nozzle at the end, with a droplet diameter of 3-5 μm.

4. The high-frequency jet video laryngoscope with integrated multimodal function as described in claim 1, characterized in that, In the visualization and anti-interference module, the camera (441) is a 4K ultra-high-definition camera with a 120° wide angle and a frame rate of 30fps. The lens is covered with a nano anti-fog coating and has a contact angle greater than 150°. The illumination array (442) is a ring-shaped LED illumination array, including 4-6 LEDs with a color temperature of 5500K and an illuminance of 1500lx. The illumination array (442) is also equipped with an infrared fill light with a wavelength of 850nm.

5. The high-frequency jet video laryngoscope with integrated multimodal function as described in claim 1, characterized in that, In the multifunctional channel module, the near-infrared laser (47) has a wavelength of 808nm and a power of 5mW. It is transmitted to the end of the flexible insertion part (4) through an optical fiber and projects a cross-shaped positioning spot onto the cricothyroid membrane area with a positioning accuracy of ±1mm. The puncture needle insertion angle is displayed in real time through the camera (441), with a range of 0°-45°. The marked insertion point is displayed on the touch screen (11).

Images