Multifunctional laryngoscope blade and laryngoscope

Abstract

The multifunctional laryngoscope lens comprises a laryngoscope lens body and a pipeline channel arranged in the laryngoscope lens body, and the pipeline channel extends along the appearance of the laryngoscope lens body; the pipeline channel comprises a water supply pipeline, a soft lens pipeline and a suction pipeline which are sequentially arranged at intervals, and an endoscopic soft lens is inserted into the soft lens pipeline in a penetrating mode. A flow guide channel and a negative pressure channel are formed in the tail end of the pipeline channel, and the position of a lens of the soft endoscope does not exceed the opening position of the flow guide channel and the opening position of the negative pressure channel. By means of the design that the shape follow-up pipeline is embedded in the laryngoscope blade, the radial size of the multifunctional laryngoscope blade is reduced, foreign matter discomfort of a patient in laryngoscope operation is relieved, and the multifunctional laryngoscope blade is suitable for laryngoscope first-aid operation of a special patient in a limited oral cavity space. By additionally arranging the flow guide channel and the negative pressure channel, the laryngoscope lens can be effectively cleaned, and the function of controlling the flushing force of the lens is achieved through the flow speed monitoring unit and the calculation and visualization unit.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a multifunctional laryngoscope blade and a laryngoscope. Background Art

[0002] In clinical anesthesia intubation and minimally invasive throat surgery, the throat needs to be exposed. However, the throat is located deep and has a complex physiological structure, so it cannot be directly observed. With the development of visualization technology, visual laryngeal tubes have been widely used for laryngeal examinations during endotracheal intubation. However, for special patients such as those with difficulty opening the mouth, obesity, and emergency treatment, the mouth opening space is very limited. The limited oral space is a practical difficulty in laryngeal examinations.

[0003] The prior art has the following disadvantages when performing laryngoscopy:

[0004] 1. Compared with the traditional simple metal laryngoscope blades, the conventional laryngoscope blades equipped with multiple functions often have too large radial dimensions (thickness, the direction of the patient's mouth opening) due to the functional structures such as camera modules, external suction, and cleaning hose guide channels, occupying more of the patient's oral environment; at the same time, the complex structure will also lead to the irregular shape of the main body of the laryngoscope blade, which will greatly increase the difficulty of clinical operation, make it more likely to cause discomfort to patients, and limit the success rate of intubation for special patients. In addition, in clinical use, combined laryngoscope instruments often have the problem of inadequate disinfection and cleaning.

[0005] 2. For the treatment and cleaning needs of the patient's sputum, vomit, and secretions, the use of water supply hoses, suction hoses / hard tubes and other instruments is generally divided into being placed independently of the laryngoscope in the patient's throat, or being used together with the laryngoscope through an additional guiding pipeline on the outside of the laryngoscope body. In the former case, the intervention of such instruments will further occupy the patient's oral space, block the anesthesiologist's line of sight, and also affect the direct vision effect of the visual laryngoscope, seriously reducing the success rate of intubation in emergency situations; in the latter case, the main body of the laryngoscope often forms a complex external structure due to the need to fix or guide one or more pipelines, which increases the size of the laryngoscope and complicates the external structure of the laryngoscope body or laryngoscope blade, which poses a great hidden danger to the use and disinfection of the laryngoscope, and will also cause a more serious foreign body sensation to the patient.

[0006] 3. In clinical use, the lens of a conventional video laryngoscope is often blocked by contaminants with certain viscosity and adhesion, such as secretions and blood in the patient's mouth, which limits the operation of the visual module. Due to the special surgical environment of the larynx, it is impossible to rinse the lens with high-flow saline. The existing technology generally cleans the lens by slow flow of saline or specially designed mechanical structures. The former obviously cannot fully guarantee the cleaning effect, and the latter relies on strict preliminary mechanical inspection work to avoid accidents such as parts falling, which cannot meet the requirements for intubation in rescue and first aid.

[0007] Therefore, how to solve the practical operational difficulties of complex or combined multifunctional laryngoscope blades that cannot adapt to special patients with limited oral space such as difficulty opening the mouth and obesity, and the problem of lens contamination during the intubation process is an urgent problem to be solved. Utility Model Content

[0008] In view of the above-mentioned defects of the prior art, the purpose of the utility model is to provide a multifunctional laryngoscope blade and laryngoscope to solve the problem that the current complex or combined multifunctional laryngoscopes cannot adapt to the emergency operations of special patients with limited oral space such as difficulty opening the mouth and obesity in size and appearance, and the laryngoscope instruments are not properly disinfected and cleaned during clinical use.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A multifunctional laryngoscope blade comprises a laryngoscope blade body, and a pipeline channel arranged in the laryngoscope blade body, wherein the pipeline channel extends along the outer shape of the laryngoscope blade body; the pipeline channel comprises a water supply pipeline, a soft endoscope pipeline and a suction pipeline which are arranged in sequence and at intervals, and an endoscope is inserted into the soft endoscope pipeline; a diversion channel and a negative pressure channel are opened at the end of the pipeline channel, and the two ends of the diversion channel are respectively connected to the water supply pipeline and the soft endoscope pipeline, and the two ends of the negative pressure channel are respectively connected to the soft endoscope pipeline and the suction pipeline, and the lens position of the endoscope does not exceed the opening positions of the diversion channel and the negative pressure channel.

[0011] Furthermore, the shape of the laryngoscope blade body is an arc with a warped terminal, and the warping angle of the terminal is greater than 15°.

[0012] Furthermore, the radial wall thickness of the laryngoscope blade body is not less than 2 mm.

[0013] Furthermore, the cross-sectional diameter of the water supply pipeline is not less than 3 mm, the minimum width of the flexible mirror pipeline is not less than 6 mm, and the cross-sectional height of the suction pipeline is not less than 5 mm.

[0014] Furthermore, the radial height of the guide channel is not greater than the radial height of the water supply pipeline, and the radial height of the negative pressure channel is not greater than the radial height of the suction pipeline.

[0015] A multifunctional laryngoscope comprises a laryngoscope handle and the multifunctional laryngoscope blade. The laryngoscope handle is threadedly fixed to the multifunctional laryngoscope blade, and the outside of the laryngoscope handle is provided with an anti-slip texture.

[0016] Furthermore, it also includes a computing and visualization unit, which includes a microcomputer and a visualization display module; the microcomputer is assembled and fixedly connected to the laryngoscope handle and is electrically connected to the endoscope, and the visualization display module displays the data graphics collected by the endoscope.

[0017] Furthermore, it also includes a flow rate monitoring unit, which is connected to the multifunctional laryngoscope blade through a suction negative pressure tube and a water injection tube respectively; the flow rate monitoring unit is electrically connected to the microcomputer.

[0018] Furthermore, the flow rate monitoring unit includes a water supply flow rate detection module, a suction flow rate detection module, a water supply pipeline flow solenoid valve, a suction pipeline flow solenoid valve and a digital-to-analog conversion processing circuit; one end of the water supply flow rate detection module is sealed and threadedly connected to the water supply injection pipe, and the other end is connected to the water supply pipeline flow solenoid valve through a sealed pipeline, and the water supply pipeline flow solenoid valve receives the electrical signal of the digital-to-analog conversion processing circuit to control the liquid flow rate in the water supply pipeline; one end of the suction flow rate detection module is sealed and threadedly connected to the suction negative pressure pipe, and the other end is connected to the suction pipeline flow solenoid valve through a sealed pipeline, and the suction pipeline flow solenoid valve receives the electrical signal of the digital-to-analog conversion processing circuit to control the gas flow rate in the suction pipeline.

[0019] The beneficial effects of the utility model are:

[0020] (1) The utility model multifunctional laryngoscope blade has three built-in pipeline channels, which can significantly reduce the radial size of the laryngoscope blade and improve the flatness of the entrance part of the laryngoscope blade on the basis of meeting the needs of suction, water supply and visualization, so as to adapt to the laryngoscope emergency operation in the limited oral space of obese patients with difficulty in opening the mouth.

[0021] (2) The utility model provides the multifunctional laryngoscope blade with suction and water supply functions. By designing the internal flow guide and negative pressure structure of the laryngoscope blade, a visual laryngoscope lens cleaning function driven by negative pressure is formed, thereby improving the efficiency of the lens cleaning function and avoiding the operation and production costs caused by complex lens cleaning structures or methods.

[0022] (3) The utility model multifunctional laryngoscope further expands the application function of the visualization laryngoscope through the tissue flow rate detection and control function of the calculation and visualization unit 1, realizes the functions of adjusting the suction flow rate, water supply flow rate and lens cleaning gear, gives full play to the design function of the multifunctional laryngoscope blade, and also greatly improves the basic emergency needs required by the anesthesiologist in the laryngoscope intubation operation, and significantly reduces the operational limitations that may be caused by the adaptability and functionality of the instrument during emergency intubation for special patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a multifunctional laryngoscope in an embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of the planar structure of the multifunctional laryngoscope blade in the embodiment of the utility model;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the multifunctional laryngoscope blade in the embodiment of the utility model;

[0026] Figure 4 It is a cross-sectional view of the negative pressure channel and the diversion channel in the multifunctional laryngoscope blade in the embodiment of the utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the laryngoscope handle in an embodiment of the utility model;

[0028] Figure 6 Schematic diagram of the structure of the flow rate monitoring unit in the embodiment of the present utility model.

[0029] Explanation of the reference numerals: 1. Calculation and visualization unit; 2. Soft endoscope; 3. Multifunctional laryngoscope blade; 31. Laryngoscope handle positioning and connection thread; 32. Water supply pipeline connection thread; 33. Suction pipeline connection thread; 34. Suction pipeline; 35. Water supply pipeline; 36. Suction port; 37. Soft endoscope port; 38. Water supply port; 39. Soft endoscope pipeline; 391. Negative pressure channel; 392. Diversion channel; 4. Laryngoscope handle; 41. Shell; 42. Handle body; 43 Laryngoscope blade connection stud; 5. Suction negative pressure tube; 6. Water supply injection tube; 7. Data transmission cable; 8. Flow rate monitoring unit; 81. Water supply flow rate detection module; 82. Water supply pipeline flow solenoid valve; 83. Digital-to-analog conversion processing circuit; 84. Suction pipeline flow solenoid valve; 85. Suction flow rate detection module; 9. Suction connecting pipe; 10. Water supply connecting pipe. DETAILED DESCRIPTION

[0030] The following is a detailed description of the embodiments of the present invention. The following embodiments are implemented on the premise of the technical solution of the present invention, and provide detailed implementation methods and specific operation processes, but the protection scope of the present invention is not limited to the following embodiments.

[0031] Example

[0032] See also Figure 2The utility model provides a multifunctional laryngoscope blade 3, comprising a laryngoscope blade body, and a pipeline channel arranged in the laryngoscope blade body, wherein the pipeline channel extends along the outer shape of the laryngoscope blade body; the pipeline channel comprises a water supply pipeline 35, a soft mirror pipeline 36 and a suction pipeline 34 which are arranged in sequence and at intervals, and an endoscope 2 is inserted into the soft mirror pipeline 39; a guide channel 392 and a negative pressure channel 391 are opened at the end of the pipeline channel, and the two ends of the guide channel 392 are respectively connected to the water supply pipeline 35 and the soft mirror pipeline 39, and the two ends of the negative pressure channel 391 are respectively connected to the soft mirror pipeline 39 and the suction pipeline 34, and the lens position of the endoscope 2 does not exceed the opening positions of the guide channel 392 and the negative pressure channel 391.

[0033] By compositely embedding the water supply pipeline 35, the soft mirror pipeline 39 and the suction pipeline 34 inside the multifunctional laryngoscope blade 3, and extending the three-way pipeline channel inside the multifunctional laryngoscope blade 3 as a conformal design based on the outer shape of the laryngoscope blade 3, it can significantly reduce the radial size (thickness and width) of the laryngoscope blade while realizing multifunctional needs such as suction, water supply and visualization, improve the flatness of the entrance part of the multifunctional laryngoscope blade 3, reduce the patient's discomfort caused by foreign objects during laryngoscope operation, and adapt to laryngoscope emergency operations in patients with difficulty opening their mouths and limited oral space in obese patients.

[0034] Through the arrangement of the negative pressure channel 391 and the diversion channel 392, the Bernoulli effect of the suction pipeline 34 and the water supply pipeline 35 under the action of different media and different flow rates can form a pressure difference between the negative pressure channel 391 and the diversion channel 392, so that part of the physiological saline or other solution in the water supply pipeline 35 flows to the negative pressure channel 391 through the diversion channel 392 under pressure, and leaves the laryngoscope blade 3 through the suction pipeline 34. The process of the solution flowing from the diversion channel 392 to the negative pressure channel 391 will flush away the attachments on the lens surface of the endoscope 2, so as to achieve the function of cleaning the visual laryngoscope lens.

[0035] The multifunctional laryngoscope blade of the present application not only provides suction and water supply functions, but also designs diversion and negative pressure channel structures in the three pipeline channels inside the multifunctional laryngoscope blade 3, and forms an endoscope soft mirror 2 lens cleaning function driven by negative pressure at the terminal of the soft mirror pipeline 39, thereby improving the efficiency of the lens cleaning function, avoiding the problem of water flow directly impacting the patient's throat, and avoiding the operation and production costs caused by complex lens cleaning structures or methods.

[0036] Furthermore, the shape of the laryngoscope blade body is an arc with a warped terminal, and the warping angle of the terminal is greater than 15°.

[0037] The multifunctional laryngoscope blade 3 is designed to be in an arc shape that better fits the tongue and tongue root of the patient, and is tilted at the terminal end to raise the patient's epiglottis to expose the glottis.

[0038] Furthermore, the radial wall thickness of the laryngoscope blade body is not less than 2 mm. The radial wall thickness of the multifunctional laryngoscope blade 3 is at least 2 mm, which can ensure the strength and rigidity of the laryngoscope blade body.

[0039] Furthermore, the cross-sectional diameter of the water supply pipeline 35 is not less than 3 mm, the minimum width of the flexible mirror pipeline 39 is not less than 6 mm, and the cross-sectional height of the suction pipeline 34 is not less than 5 mm.

[0040] Specifically, the cross-section of the water supply pipe 35 is circular, which is suitable for the passage of cleaning liquids such as saline, and its cross-sectional diameter is not less than 3 mm to ensure an effective water supply effect; the cross-section of the soft endoscope pipe 39 is square or circular, which is used to insert the cable of the visualized endoscope 2 into the laryngoscope blade for matching use, and its minimum width is not less than 6 mm to adapt to the size of the conventional endoscope 2; the cross-section of the suction pipe 34 is rectangular, which is used to suction the patient's throat, pharyngeal secretions, blood or other foreign matter. The rectangular design maximizes the smooth passage of the suctioned material and improves the suction efficiency. Its cross-sectional height is not less than 5 mm to ensure an effective suction effect.

[0041] Furthermore, the radial height of the guide channel 392 is not greater than the radial height of the water supply pipeline 35 , and the radial height of the negative pressure channel 391 is not greater than the radial height of the suction pipeline 34 .

[0042] Through the radial height limitation between each pipeline channel, the water flow direction of the solution from the water supply pipeline 35 to the negative pressure channel 391 is from high to low. Under pressure, the solution can more easily complete the process of flowing from the water supply pipeline 35 to the negative pressure channel 391 and then leaving the multifunctional laryngoscope blade 3 through the suction pipeline 34; therefore, the water flow can accurately rinse the surface attachments of the lens of the endoscope 2 in the soft mirror pipeline 39.

[0043] It should be noted that the suction port 36 of the multifunctional laryngoscope blade 3 is used for the multifunctional laryngoscope blade 3 to extract foreign matter such as secretions, blood, sputum, etc. from the patient's oral cavity, throat and epiglottis; the soft mirror port 37 is used for the endoscope 2 to observe the patient's throat and epiglottis, and the endoscope 2 does not exceed the soft mirror port 37 during operation; the water supply port 38 is used to provide a cleaning solution to the patient's oral cavity, throat and epiglottis.

[0044] More specifically, the multifunctional laryngoscope blade 3 and the conformable embedded pipeline of the present application are directly formed by metal 3D printing. According to the design drawings, metal 3D printing is directly used for direct molding. The water supply pipeline connection thread 32, the suction pipeline connection thread 33 and the laryngoscope handle positioning and connection thread 31 are realized by later machining. The post-processing machining of the multifunctional laryngoscope blade 3 is performed by grinding, sandblasting, polishing, etc. on the mirror body surface and internal pipeline to improve the surface roughness until it meets the relevant industry and national medical device standards and improves the corrosion resistance and disinfection properties of the multifunctional laryngoscope blade 3. At the soft mirror lens end of the suction pipeline 39, a diversion channel 392 is directly formed by 3D printing between the suction pipeline 39 and the water supply pipeline 35; a negative pressure channel 391 is directly formed by 3D printing between the suction pipeline 39 and the suction pipeline 34.

[0045] The metal 3D printing preparation method of the multifunctional laryngoscope blade 3 includes processing with 316L stainless steel powder, and the metal 3D printing molding parameters are: laser power 150W, laser beam scanning speed 1000mm / s, accumulation layer thickness 20μm, laser spot 50μm, laser scanning line spacing 60μm, and the scanning strategy is: firstly perform an edge scan on the outer contour of the multifunctional laryngoscope blade 3 twice, and then perform an internal solid filling scan to ensure the outer surface quality of the laryngoscope blade 3; during 3D printing, the angle between any position of the multifunctional laryngoscope blade 3 and the plane must not be less than 40° to avoid the setting of supports for internal pipelines during the 3D printing process.

[0046] By adopting 3D printing direct molding technology, devices with complex internal structures can be quickly manufactured, making the internal accompanying pipelines more uniform and smooth, improving the quality of the multifunctional laryngoscope blade 3, and significantly reducing the production cost.

[0047] See also Figure 1 and Figure 3 The utility model provides a multifunctional laryngoscope, comprising a laryngoscope handle 4 and the multifunctional laryngoscope blade. The laryngoscope handle 4 is threadedly fixed to the multifunctional laryngoscope blade, and the laryngoscope handle 4 is provided with an anti-slip texture on the outside.

[0048] Specifically, the laryngoscope handle 4 includes a shell 41 of the computing and visualization unit 1, a handle body 42 and a laryngoscope blade connecting stud 43, the shell 41 is welded to the handle body 42, the laryngoscope blade connecting stud 43 is threadedly connected to the laryngoscope handle 4; the handle body 42 is provided with an anti-slip texture on the outside.

[0049] Furthermore, the multifunctional laryngoscope also includes a computing and visualization unit 1, which includes a microcomputer and a visualization display module; the microcomputer is assembled and fixedly connected to the laryngoscope handle 4, and is electrically connected to the endoscope 2, and the visualization display module displays the data graphics collected by the endoscope 2.

[0050] Specifically, the microcomputer is connected to the flexible endoscope 2 through a communication interface such as USB and obtains data graphics collected by the terminal lens of the flexible endoscope 2. After image denoising and image enhancement, it is displayed through a visual display module for the anesthesiologist to observe the patient's throat condition.

[0051] More specifically, the calculation and visualization unit 1 has built-in functions for collecting, displaying, and controlling the water supply flow rate and suction flow rate, as well as a function for controlling the intensity of the endoscope 2 lens flushing; the density of the cleaning solution in the water supply pipeline 35 is input into the calculation and visualization unit 1 after being determined, for the calculation and control of the negative pressure and the lens flushing intensity; the air density in the suction pipeline 34 is input into the calculation and visualization unit 1 after being determined, for the calculation and control of the negative pressure and the lens flushing intensity; the radial height and axial width of the guide channel 392, and the radial height and axial width of the negative pressure channel 391 should be input into the calculation and visualization unit 1 for the calculation and control of the negative pressure and the lens flushing intensity.

[0052] The realization of the function of controlling the flushing force of the endoscope lens 2 by the calculation and visualization unit 1 depends on the flow rate v of the cleaning solution in the water supply pipeline 35 of the multifunctional laryngoscope blade 3 controlled by the calculation and visualization unit 1. 给 and the air flow rate v of the suction line 34 in the multifunctional laryngoscope blade 3 抽 , so as to form negative pressures of different magnitudes between the guide channel 392 and the negative pressure channel 391 in the multifunctional laryngoscope blade 3, thereby driving the cleaning solution in the water supply pipeline 35 to continuously and controllably clean the lens of the soft endoscope 2. According to the Bernoulli equation, the equivalent negative pressure between the negative pressure channel 392 and the guide channel 391 is:

[0053]

[0054] The flushing force on the endoscope 2 lens is:

[0055]

[0056] where ρ 给 is the density of the cleaning solution in the water supply pipeline 35, ρ 抽 is the air density in the suction line 34, w 负 and h 负 are the longitudinal cross-sectional width and height of the negative pressure channel 391, w 导 and h 导 They are respectively the longitudinal cross-sectional width and height of the guide channel 392 .

[0057] Furthermore, the multifunctional laryngoscope also includes a flow rate monitoring unit 8, which is connected to the multifunctional laryngoscope blade 3 via a suction negative pressure tube 5 and a water injection tube 6 respectively; the flow rate monitoring unit 8 is electrically connected to the microcomputer.

[0058] Specifically, see Figure 1 and Figure 4 The flow rate monitoring unit 8 is connected to the suction negative pressure tube 5 through a thread, and the other end of the suction negative pressure tube 5 is connected to the multifunctional laryngoscope blade 3 through a thread; the flow rate monitoring unit 8 is connected to the water supply injection tube 6 through a thread, and the other end of the water supply injection tube 6 is connected to the multifunctional laryngoscope blade 3 through a thread; the flow rate monitoring unit 8 realizes data communication with the microcomputer through the data transmission cable 7; the microcomputer realizes data communication with the flow rate monitoring unit 8 through the data transmission cable 7 through a communication interface such as USB, so as to obtain the water supply flow rate and suction flow rate information in the current laryngoscope system from the flow rate monitoring unit 8, and send the expected water supply flow rate and suction flow rate control signals to the flow rate monitoring unit 8.

[0059] Furthermore, the flow rate monitoring unit 8 includes a water supply flow rate detection module 81, a suction flow rate detection module 85, a water supply pipeline flow solenoid valve 82, a suction pipeline flow solenoid valve 84 and a digital-to-analog conversion processing circuit 83; one end of the water supply flow rate detection module 81 is sealed and threadedly connected to the water supply injection tube 6, and the other end is connected to the water supply pipeline flow solenoid valve 82 through a sealed pipeline, and the water supply pipeline flow solenoid valve 82 receives the electrical signal of the digital-to-analog conversion processing circuit 83 to control the liquid flow rate in the water supply pipeline 35; one end of the suction flow rate detection module 85 is sealed and threadedly connected to the suction negative pressure tube 5, and the other end is connected to the suction pipeline flow solenoid valve 84 through a sealed pipeline, and the suction pipeline flow solenoid valve 84 receives the electrical signal of the digital-to-analog conversion processing circuit 83 to control the gas flow rate in the suction pipeline 34.

[0060] Specifically, see Figure 4 The water supply flow rate detection module 81 is connected with the water supply injection tube 6 in a sealed threaded manner, measures the liquid flow rate in the water supply pipeline 35 in the laryngoscope blade 3, and transmits the measurement result to the digital-to-analog conversion processing circuit 83 through an electrical signal connection; the other end of the water supply flow rate detection module 81 is connected with the water supply pipeline flow electromagnetic valve 82 through a sealed pipeline; the other end of the water supply pipeline flow electromagnetic valve 82 is connected with the external cleaning solution pump device through the water supply connecting pipe 10; the water supply pipeline flow electromagnetic valve 82 receives the electrical signal of the digital-to-analog conversion processing circuit 83 to control the liquid flow rate in the water supply injection tube 6, i.e., the water supply pipeline 35;

[0061] The suction flow rate detection module 85 is connected with the suction negative pressure tube 5 in a sealed threaded manner, measures the liquid flow rate in the suction pipeline 34 in the laryngoscope blade 3, and transmits the measurement result to the digital-to-analog conversion processing circuit 83 through an electrical signal connection; the other end of the suction flow rate detection module 85 is connected with the suction pipeline flow electromagnetic valve 84 through a sealed pipeline; the other end of the suction pipeline flow electromagnetic valve 84 is connected with the external medical negative pressure suction device through a suction connecting tube 9; the suction pipeline flow electromagnetic valve 84 receives the electrical signal of the digital-to-analog conversion processing circuit 83 to control the gas flow rate in the suction negative pressure tube 5, i.e., the suction pipeline 34;

[0062] The digital-to-analog conversion processing circuit 83 receives the flow rate measurement analog signal and converts it into a digital signal, which is transmitted to the computing and visual unit 1 via the data transmission cable 7, and receives the solenoid valve control digital signal from the computing and visual unit 1 and converts it into an analog signal to control the water supply pipeline flow solenoid valve 82 and the suction pipeline flow solenoid valve 84 respectively.

[0063] The method and steps of using the battery multifunctional laryngoscope of the utility model are as follows: disinfect and clean the computing and visualization unit 1, the soft endoscope 2, the multifunctional laryngoscope blade 3, the laryngoscope handle 4, and the flow rate monitoring unit 8, respectively assemble the computing and visualization unit 1 and the laryngoscope handle 4, the multifunctional laryngoscope blade 3 and the laryngoscope handle 4, connect the computing and visualization unit 1 and the soft endoscope 2 and insert the soft endoscope 2 into the multifunctional laryngoscope blade 3 along the soft endoscope pipeline 39, respectively connect the suction negative pressure tube 5, the water supply injection tube 6 and the multifunctional laryngoscope blade 3, respectively connect the suction negative pressure tube 5, the water supply injection tube 6 and the flow rate monitoring unit 8, respectively connect the suction negative pressure tube 5, the water supply injection tube 6 and the flow rate monitoring unit 8, respectively The monitoring unit 8 is respectively connected to the suction connecting pipe 9, the water supply connecting pipe 10 and the flow rate monitoring unit 8; the computing and visualization unit 1 and the flow rate monitoring unit 8 are powered on, and after setting the flow rate and the lens flushing gear in the computing and visualization unit 1, the multifunctional laryngoscope blade 3 is inserted into the patient's throat to start the laryngoscope intubation operation. During the laryngoscope intubation operation, the suction flow rate in the suction pipeline 34, the water supply flow rate in the water supply pipeline 35, and the flushing gear of the endoscope 2 lens between the guide channel 392 and the negative pressure pipeline 391 are adjusted in the computing and visualization unit 1 according to actual needs.

[0064] The utility model significantly reduces the radial size of the laryngoscope blade through the design of embedded conformal pipeline in the laryngoscope blade, reduces the patient's discomfort caused by foreign objects during laryngoscope operation, and adapts to the emergency laryngoscope operation under limited oral space of special patients; by adding a diversion channel and a negative pressure channel, the laryngoscope lens can be effectively cleaned, the efficiency of the lens cleaning function is improved, and the operation and production costs caused by complex lens cleaning structures or methods are avoided; on the basis of the design and manufacture of multifunctional laryngoscope blades, the utility model proposes a complete theoretical basis, usage method and supporting facilities, and on the basis of the design of the laryngoscope blade hardware, the application function of the visual laryngoscope is further expanded by organizing the flow rate detection and control function, and the functions of suction flow rate, water supply flow rate and lens cleaning gear adjustment are realized, which fully utilizes the design function of the multifunctional laryngoscope blade, and also greatly improves the basic emergency needs of anesthesiologists in laryngoscope intubation operations, and significantly reduces the operational limitations that may be caused by the adaptability and functionality of the instrument during emergency intubation of special patients.

[0065] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A multifunctional laryngoscope blade, characterized in that: It comprises a laryngoscope blade body, and a pipeline channel arranged in the laryngoscope blade body, wherein the pipeline channel extends along the outer shape of the laryngoscope blade body; The pipeline channel includes a water supply pipeline, a flexible endoscope pipeline and a suction pipeline which are arranged in sequence and at intervals, and an endoscope is inserted into the flexible endoscope pipeline; A diversion channel and a negative pressure channel are provided at the end of the pipeline channel, the two ends of the diversion channel are respectively connected to the water supply pipeline and the flexible endoscope pipeline, the two ends of the negative pressure channel are respectively connected to the flexible endoscope pipeline and the suction pipeline, and the lens position of the endoscope does not exceed the opening positions of the diversion channel and the negative pressure channel.

2. The multifunctional laryngoscope blade according to claim 1, characterized in that: The shape of the laryngoscope blade body is an arc shape with a warped terminal, and the warping angle of the terminal is greater than 15°.

3. The multifunctional laryngoscope blade according to claim 1, characterized in that: The radial wall thickness of the laryngoscope blade body is not less than 2 mm.

4. The multifunctional laryngoscope blade according to claim 1, characterized in that: The cross-sectional diameter of the water supply pipeline is not less than 3 mm, the minimum width of the flexible mirror pipeline is not less than 6 mm, and the cross-sectional height of the suction pipeline is not less than 5 mm.

5. The multifunctional laryngoscope blade according to claim 1, characterized in that: The radial height of the guide channel is not greater than the radial height of the water supply pipeline, and the radial height of the negative pressure channel is not greater than the radial height of the suction pipeline.

6. A multifunctional laryngoscope, characterized in that: It comprises a laryngoscope handle and the multifunctional laryngoscope blade according to any one of claims 1 to 5, wherein the laryngoscope handle is threadedly fixed to the multifunctional laryngoscope blade, and the outside of the laryngoscope handle is provided with an anti-slip texture.

7. The multifunctional laryngoscope according to claim 6, characterized in that: It also includes a computing and visualization unit, which includes a microcomputer and a visualization display module; the microcomputer is assembled and fixedly connected to the laryngoscope handle and is electrically connected to the endoscope, and the visualization display module displays the data graphics collected by the endoscope.

8. The multifunctional laryngoscope according to claim 7, characterized in that: It also includes a flow rate monitoring unit, which is connected to the multifunctional laryngoscope blade through a suction negative pressure tube and a water injection tube respectively; the flow rate monitoring unit is electrically connected to the microcomputer.

9. The multifunctional laryngoscope according to claim 8, characterized in that: The flow rate monitoring unit includes a water supply flow rate detection module, a suction flow rate detection module, a water supply pipeline flow solenoid valve, a suction pipeline flow solenoid valve and a digital-to-analog conversion processing circuit; One end of the water supply flow rate detection module is connected to the water supply injection pipe with a sealing thread, and the other end is connected to the water supply pipeline flow solenoid valve through a sealed pipeline. The water supply pipeline flow solenoid valve receives the electrical signal of the digital-to-analog conversion processing circuit to control the liquid flow rate in the water supply pipeline; One end of the suction flow rate detection module is sealed and threadedly connected to the suction negative pressure tube, and the other end is connected to the suction pipeline flow solenoid valve through a sealed pipeline. The suction pipeline flow solenoid valve receives the electrical signal of the digital-to-analog conversion processing circuit to control the gas flow rate in the suction pipeline.

Images