Disposable visual laryngoscope lens with detachable trachea cannula guide channel

Abstract

The utility model discloses a disposable visual laryngoscope blade with a detachable guide channel for intubation. The disposable visual laryngoscope blade comprises an arc-shaped laryngoscope body channel and an arc-shaped intubation channel which are parallel to each other side by side, the arc-shaped laryngoscope body channel is used for protecting the visual laryngoscope lens and the light source; the arc-shaped intubation channel is used for accommodating and guiding a tracheal catheter into a trachea; a partition plate is arranged between the arc-shaped endoscope body channel and the arc-shaped intubation tube channel; the arc-shaped intubation channel comprises a detachable bottom plate and / or intubation channel side plates. The laryngoscope blade is simple in structure, and can prevent oropharyngeal secretions from polluting a tracheal catheter during tracheal intubation; the lens has a guiding function, a shaped tracheal catheter guide core does not need to be used, an existing intubation habit is changed to a certain degree, and operation is more convenient and faster.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment and relates to a disposable visual laryngoscope blade with a detachable tracheal intubation guide channel. Background Art

[0002] In recent years, with the development of science and technology, video laryngoscopes have basically replaced ordinary laryngoscopes and are widely used in clinical practice. Because the lens of the video laryngoscope is closer to the pharynx and can transmit the pharynx image in real time, the patient's glottis can be clearly seen through the laryngoscope under full exposure, which greatly reduces the occurrence of difficult intubation.

[0003] The existing intubation method still follows the intubation habit of ordinary laryngoscope, that is, a plastic tracheal guide core is placed into the tracheal tube and molded into a fishhook shape, and then the tube is placed in the mouth and sent into the trachea through the glottis under the guidance of a visual laryngoscope. However, there may be some problems in actual operation. The visual laryngoscope can only see the image in front of the lens, while other anatomical structures in the mouth cannot be seen, which may lead to the inability to accurately and quickly insert the tracheal tube into place in the narrow oral space; in addition, the tracheal tube that is usually folded into a fishhook shape has a large degree of curvature, and the space occupied when placed in the mouth is also large, and the direction cannot be accurately identified, which also hinders the rapid insertion of the tracheal tube.

[0004] As we all know, the oral environment is complex and can harbor a large number of microorganisms. Since the endotracheal tube passes directly through the mouth, the unprotected endotracheal tube will inevitably be contaminated by microorganisms in the mouth. In most cases, the endotracheal guide tubes used are not disposable items and are not routinely disinfected and sterilized during normal use. These situations increase the chances of lung infection in patients requiring endotracheal intubation.

[0005] Therefore, if we want to change the traditional intubation habits and seek new intubation methods, we need to start with the most basic disposable visual laryngoscope blade required for intubation, which can be transformed into a device that contains a tracheal tube channel and has a guiding function. Its channel can protect the tracheal tube from contamination by the complex oral environment; its guiding function can smoothly send the tracheal tube into the trachea through the glottis; at the same time, this device can be disassembled to facilitate the removal of the laryngoscope blade from the mouth after the tracheal intubation is completed. In this way, while ensuring the completion of tracheal intubation, it also reduces or avoids lower respiratory tract infections caused by human factors. Utility Model Content

[0006] In order to solve the deficiencies in the prior art, the utility model aims to provide a disposable visual laryngoscope blade with a detachable endotracheal tube guide channel.

[0007] The existing disposable visual laryngoscope blade is a visual upgrade of the ordinary laryngoscope blade. Although it greatly reduces the incidence of difficult intubation, it does not change the existing intubation habits, so it is inevitable that the oral environment will contaminate the tracheal tube. The visual laryngoscope blade of the utility model can reduce or even avoid the contamination of the tracheal tube by the oral cavity. Because it includes a tracheal intubation channel with a guiding function, its guiding function can smoothly complete the intubation under the guidance of the visual laryngoscope. The relatively closed intubation guide channel formed can also prevent the tracheal tube from being contaminated. At the same time, it has a guiding function itself, and can complete the intubation without the assistance of a plastic guide core, and also avoids the occurrence of cross infection between different patients caused by the reuse of the guide core.

[0008] The utility model provides a disposable visual laryngoscope blade with a detachable tracheal intubation guide channel and a use method thereof, which can reduce the contamination of the tracheal tube by oral secretions during tracheal intubation and avoid artificial intubation difficulties caused by excessive shaping of the tracheal tube.

[0009] The technical solution of the utility model includes:

[0010] A disposable visual laryngoscope blade with a detachable intubation guide channel comprises an arcuate mirror body channel nested on an arcuate visual laryngoscope body, the front end of the arcuate mirror body channel is a sealing structure, one side of the arcuate mirror body channel is an accompanying detachable arcuate intubation channel, an arcuate tongue supporting plate for supporting the tongue is arranged above the arcuate intubation channel, and the arcuate intubation channel is provided with a detachable bottom plate and / or intubation channel side plate.

[0011] Furthermore, the arc-shaped mirror body channel, the arc-shaped tongue-supporting plate, and the arc-shaped insertion tube channel are an integrated structure.

[0012] Furthermore, a common partition is provided between the arc-shaped mirror body channel and the arc-shaped insertion tube channel.

[0013] Furthermore, the arc-shaped intubation channel is located on one side of the arc-shaped mirror body channel, and its structure includes: a tongue-supporting plate, and the upper plate of the mirror body channel of the arc-shaped mirror body channel and the tongue-supporting plate of the arc-shaped intubation channel may not be in the same plane, or they may be in the same plane. The upper plate of the mirror body channel and the tongue-supporting plate are respectively the upper components constituting the overall sealing structure of the arc-shaped mirror body channel and the arc-shaped intubation channel, and they may be in the same plane or not; since the inner diameter of the arc-shaped mirror body channel is smaller than the intubation channel as a whole, if the top is flush, the bottom plate of the arc-shaped mirror body channel can be moved upward so that the channel matches the mirror body. The inner side surface of the arc-shaped intubation channel (i.e., the partition) is the side structure of the mirror body channel, and the side plate of the intubation channel is an arc-shaped plate, and the side plate of the intubation channel and the partition are in a parallel structure as a whole. The bottom surface is a bottom plate that can be pulled out and separated. The four surfaces constitute a surrounding closed structure that can guide the arc-shaped intubation channel.

[0014] Furthermore, the partition is the inner side surface of the arc-shaped insertion tube channel and is an integral and inseparable structure with the tongue support plate.

[0015] Furthermore, when the insertion tube channel side plate of the arc-shaped insertion tube channel is fixed, a symmetrical arc-shaped track groove can be arranged under the partition plate and the insertion tube channel side plate, and the width and depth of the arc-shaped track groove just accommodate the bottom plate to be pulled and slid therein.

[0016] Furthermore, the bottom plate is a rectangular thin plate, and its length is substantially equal to that of the arc-shaped track groove, or slightly longer and shorter than the upper tongue-supporting plate. The bottom plate is an independent structure that can be pulled apart from the track groove.

[0017] In another specific embodiment, the bottom plate can also be adsorbed on the partition plate and the side plate of the intubation channel through a magnetic structure.

[0018] Furthermore, the distance between the tongue support plate and the bottom plate of the arc-shaped intubation channel is greater than the outer diameter of the tracheal tube. The upper plate of the arc-shaped mirror channel and the tongue support plate of the arc-shaped intubation channel may not be in the same plane, or they may be in the same plane. When the upper plate of the mirror channel and the tongue support plate are designed to be in the same plane, the upper plate of the mirror channel serves as a part of the tongue support plate.

[0019] The bottom surface of the arc-shaped cannula channel may also be fixed, without a pull-out and detachable bottom plate. In this case, the side plates of the cannula channel are detachable.

[0020] In a specific embodiment, sliding grooves are respectively provided on the tongue support plate and the bottom plate, and the side plates of the intubation channel can be slidably inserted into the sliding grooves to close or open the arc-shaped intubation channel;

[0021] In another specific embodiment, the tongue support plate, the sides of the bottom plate, and the side plates of the intubation channel are all provided with magnetic structures, and the side plates of the intubation channel are magnetically adsorbed on the tongue support plate and the sides of the bottom plate to close or open the arc-shaped intubation channel.

[0022] The size of the arc-shaped cannula channel is usually slightly larger than the size of the arc-shaped mirror body channel.

[0023] The port of the arc-shaped intubation channel is provided with a movable baffle that can open and close the port, which does not affect the tracheal intubation, but further relatively closes the arc-shaped intubation channel to isolate it from the oral contents to prevent contamination.

[0024] In a specific embodiment, the bottom plate material can be replaced with a relatively soft material with a plasticity whose curvature under the original stress-free condition is greater than the curvature of the arc-shaped cannula channel. The length of the bottom plate is greater than the length of the track groove. When the bottom plate is inserted into the track groove, the length of the bottom plate at the outlet of the arc-shaped cannula channel is greater than the length of the track groove. The portion exceeding the track groove becomes more curved again due to the plasticity of the bottom plate itself, and the curvature is greater than the curvature of the arc-shaped cannula channel itself. When the endotracheal cannula is inserted, the curvature is greater than the curvature of the arc-shaped cannula channel itself. The inserted endotracheal tube is made more curved under the guidance of the base plate with a larger width; or, the base plate is replaced with a soft base plate with plasticity, the front end of which can be rolled into a cylindrical shape when not subjected to force, the length of the base plate is greater than the length of the track groove, when the base plate is inserted into the track groove during use, the length of the base plate at the outlet of the arc-shaped cannula channel is greater than the length of the track groove, and the portion exceeding the track groove is re-rolled into a cylindrical shape under the plasticity of the base plate itself, and when the endotracheal tube is inserted, the inserted endotracheal tube is made more curved under the guidance of the front end of the rolled-up base plate.

[0025] The beneficial effects of the utility model include:

[0026] 1. The arc-shaped intubation channel is formed according to the curvature of the tongue surface. When the front end is placed in the epiglottic valley and is well exposed, the front of the intubation channel can be aligned with the glottis, which is convenient for the insertion of the tracheal tube.

[0027] 2. The arc-shaped intubation channel has a natural guiding function due to its shape, and the tracheal tube can be placed into the glottis through the intubation channel without shaping the tube core.

[0028] 3. The arc-shaped intubation channel is a four-sided closed structure, isolating the tracheal tube from contact with the oral cavity, avoiding contamination and reducing the occurrence of lung infection.

[0029] 4. The bottom plate of the arc-shaped intubation channel is a detachable bottom plate, which slides in the track groove, and its front end can slightly extend out of the track groove. Due to its natural arc-shaped structure, the tracheal tube can be more easily inserted into the glottis, playing a delivery role.

[0030] 5. A movable baffle is provided at one end of the arc-shaped intubation channel, which does not affect the tracheal intubation and further relatively closes the arc-shaped intubation channel to isolate it from the oral contents to prevent contamination.

[0031] The disposable visual laryngoscope blade has a simple structure, has no redundant structure and avoids taking up more space. It is different from existing intubation habits and methods and can reduce the occurrence of artificially caused invasive lung infections in the vast majority of patients undergoing non-difficult intubation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a three-dimensional diagram of the utility model.

[0034] Figure 2 It is a side view of the utility model.

[0035] Figure 3 It is a stereogram of the utility model.

[0036] Figure 4 It is a stereogram of the utility model.

[0037] Figure 5 It is a stereogram of the utility model.

[0038] Figure 6 It is a stereogram of the utility model.

[0039] In the figure: 1. arc-shaped mirror channel, 2. arc-shaped insertion channel, 3. mirror channel upper plate, 4. bottom plate, 41. thickened head end of bottom plate, 5. buckle, 6. mirror channel entrance, 7. insertion channel entrance, 8. track groove, 9. baffle, 10. mirror channel side plate, 11. mirror channel bottom plate, 12. insertion channel side plate, 13. partition, 14. tongue support plate. DETAILED DESCRIPTION

[0040] The utility model is further described in detail with reference to the following specific embodiments and drawings. The process, conditions, experimental methods, etc. for implementing the utility model, except for the contents specifically mentioned below, are all common knowledge and common common sense in the field, and the utility model has no special restrictions.

[0041] The utility model provides a disposable visual laryngoscope blade with a detachable intubation guide channel, including an arc-shaped mirror channel nested on an arc-shaped visual laryngoscope body, the front end of the arc-shaped mirror channel is a sealing structure, one side of the arc-shaped mirror channel is an accompanying detachable arc-shaped intubation channel, an arc-shaped tongue-supporting plate for supporting the tongue body is arranged above the intubation channel, and the arc-shaped intubation channel is provided with a pull-out detachable bottom plate and / or a detachable intubation channel side plate. The laryngoscope blade has a simple structure and can avoid contamination of the tracheal tube by oropharyngeal secretions during tracheal intubation; and the blade has a guiding function, and there is no need to use a shaped tracheal tube guide core, which changes the existing intubation habits to a certain extent and makes the operation more convenient.

[0042] Figure 1-6 The figure shows a disposable detachable visual laryngoscope blade involved in the utility model, including an arc-shaped mirror channel 1 for connecting with the visual laryngoscope body, and tightly fixed with the mirror body through the entrance end buckle 5. The front end of the arc-shaped mirror channel 1 is a sealing structure, and the channel is sealed by a transparent baffle 9 to protect the visual laryngoscope lens and light source. The shape of the arc-shaped mirror channel 1 and the baffle 9 is adapted to the shape of the visual laryngoscope body used, and the mirror body is just nested in the arc-shaped mirror channel 1, and the front end of the mirror body is attached to the transparent baffle 9 for lighting and image collection. Next to the arc-shaped mirror channel 1 is the arc-shaped intubation channel 2, which is mainly used to guide tracheal intubation. The arc-shaped intubation channel 2 is mainly composed of an arc-shaped channel with a track groove 8 and a bottom plate 4 inlaid therewith, and the upper side of the arc-shaped intubation channel is a tongue support plate 14, and the head end 41 of the bottom plate 4 is a thickened structure to prevent the bottom plate 4 from being completely inserted into the track groove 8 and unable to be pulled out, and the bottom plate 4 and the arc-shaped intubation channel 2 are detachable.

[0043] Example 1

[0044] This embodiment provides a disposable visual laryngoscope blade with a detachable endotracheal tube guide channel, the laryngoscope blade comprising two arc-shaped lens body channels 1 and an arc-shaped intubation channel 2 which are parallel to each other;

[0045] The arc-shaped mirror body channel 1 is used to protect the visual laryngoscope lens and the light source;

[0046] The arc-shaped intubation channel 2 is used to accommodate and guide the tracheal tube into the trachea;

[0047] A partition 13 is provided between the arc-shaped mirror body channel 1 and the arc-shaped insertion tube channel 2;

[0048] The arc-shaped cannula channel 2 includes a detachable bottom plate 4 .

[0049] The arc-shaped mirror body channel 1 is arc-shaped as a whole, and the mirror body channel upper plate 3, the mirror body channel side plate 10, the partition 13 shared with the arc-shaped intubation channel 2, and the mirror body channel bottom plate 11 together constitute the main body of the arc-shaped mirror body channel 1. The length of the mirror body channel upper plate 3 is greater than the length of the mirror body channel side plate 10; the mirror body channel side plate 10 is far away from the arc-shaped intubation channel 2.

[0050] A baffle plate 9 is provided at the end of the arc-shaped mirror body channel 1, and the baffle plate 9 is transparent and is used to seal one end of the arc-shaped mirror body channel 1;

[0051] Another port of the arc-shaped mirror body channel 1 is a mirror body channel entrance 6 , and a mirror body buckle 5 is fixedly provided on the mirror body channel entrance 6 . The mirror body buckle 5 can fix the mirror body extending into the arc-shaped mirror body channel 1 .

[0052] The arc-shaped intubation channel 2 includes a tongue support plate 14, a partition plate 13 shared with the arc-shaped mirror body channel 1, and an intubation channel side plate 12; two track grooves 8 are symmetrically arranged along the bottom of the intubation channel side plate 12 and the partition plate 13, and the bottom plate 4 can be slidably inserted into the track grooves 8; the length of the track groove 8 is equal to the length of the intubation channel side plate 12 and / or the partition plate 13.

[0053] The shape and size of the bottom plate 4 match the track groove 8; the bottom plate 4 can be pulled, moved and separated in the track groove 8; together with the tongue support plate 14, the partition plate 13 and the tube channel side plate 12, it forms the arc-shaped tube channel 2.

[0054] A bottom plate thickened head end 41 is provided at one end of the bottom plate 4 , and the thickness of the bottom plate thickened head end 41 is greater than the height of the track groove 8 , so as to fix the bottom plate 4 in the track groove 8 .

[0055] With such a setting, when performing tracheal intubation, the visual laryngoscope embedded in the visual laryngoscope blade is slid down along the tongue surface until the front end of the tongue support plate 14 reaches the epiglottic valley. At this time, the tongue and epiglottis are lifted up and forward according to the usual intubation habits, and the force and angle are adjusted to fully expose the glottis. At this time, the outlet end of the arc-shaped intubation channel 2 is directly opposite to the glottis, and a suitable tracheal tube is inserted into the arc-shaped intubation channel 2, and the tracheal tube can slide all the way into the trachea along the arc-shaped intubation channel 2 with a guiding effect. Then, the base plate 4 is pulled out by pinching the thickened head end 41, and the laryngoscope is withdrawn at this time, and the tracheal tube can be separated from the bottom of the arc-shaped channel pulled out of the base plate 4, and then the tracheal tube insertion depth is adjusted and fixed to complete the tracheal intubation.

[0056] Example 2

[0057] The present embodiment provides a disposable visual laryngoscope blade with a detachable endotracheal intubation guide channel. A movable baffle that can open and close the port can also be provided at the outlet port of the arc-shaped intubation channel 2 of the visual laryngoscope blade, which does not affect the endotracheal intubation, but further relatively closes the arc-shaped intubation channel to isolate it from the oral contents to prevent contamination.

[0058] With such a setting, when performing tracheal intubation, the visual laryngoscope embedded in the visual laryngoscope blade is slid down along the tongue surface until the front end of the tongue support plate 14 reaches the epiglottic valley. At this time, the tongue and epiglottis are lifted up and forward according to the usual intubation habits, and the force and angle are adjusted to fully expose the glottis. At this time, the outlet end of the arc-shaped intubation channel 2 is directly opposite to the glottis, and a suitable tracheal tube is inserted into the arc-shaped intubation channel 2, and the tracheal tube can slide all the way into the trachea along the arc-shaped intubation channel 2 with a guiding effect. Then, the base plate 4 is pulled out by pinching the thickened head end 41, and the laryngoscope is withdrawn at this time, and the tracheal tube can be separated from the bottom of the arc-shaped channel pulled out of the base plate 4, and then the tracheal tube insertion depth is adjusted and fixed to complete the tracheal intubation.

[0059] Example 3

[0060] The arc-shaped intubation channel 2 includes a tongue-supporting plate 14 and a bottom plate 4 , wherein the tongue-supporting plate 14 and the bottom plate 4 are respectively provided with sliding grooves, and the intubation channel side plates 12 can be slidably inserted into the sliding grooves to close or open the arc-shaped intubation channel 2 .

[0061] With such a setting, when performing tracheal intubation, the visual laryngoscope embedded in the visual laryngoscope blade is slid down along the tongue surface until the front end of the tongue support plate 14 reaches the epiglottic valley. At this time, the tongue and epiglottis are lifted up and forward according to the usual intubation habits, and the force and angle are adjusted to fully expose the glottis. At this time, the outlet end of the arc-shaped intubation channel 2 is directly opposite to the glottis, and a suitable tracheal tube is inserted into the arc-shaped intubation channel 2, and the tracheal tube can slide all the way into the trachea along the arc-shaped intubation channel 2 with a guiding effect. Then, the base plate 4 is pulled out by pinching the thickened head end 41, and the laryngoscope is withdrawn at this time, and the tracheal tube can be separated from the bottom of the arc-shaped channel pulled out of the base plate 4, and then the tracheal tube insertion depth is adjusted and fixed to complete the tracheal intubation.

[0062] Example 4

[0063] The detachable bottom plate 4 in Example 1 or the detachable cannula channel side plate 12 in Example 3 can also be assembled and installed in other convenient detachable ways, such as by providing matching adsorption parts for magnetic disassembly. Other disassembly methods commonly used by those skilled in the art can also be used.

[0064] This laryngoscope blade provides design ideas and related model design drawings. The specific size should be measured according to the laryngoscope used in clinical practice, so as to produce the corresponding laryngoscope blade that conforms to the actual laryngoscope. It can be divided into blades of different specifications, suitable for adults and children respectively. The entrance of the channel of the adult laryngoscope blade currently used is 12mm wide and 11mm high. The width and height of the designed intubation channel should be greater than the outer diameter of the tracheal tube (7.0#) by 10mm. The arc radius of the tongue support plate based on the conventional arc intubation channel is 72-82mm.

[0065] The utility model configures the arc-shaped intubation channel 2 as a channel closed on all sides, and designs the bottom plate 4 and / or the intubation channel side plates 12 as a detachable structure, so that the trachea to be intubated is first inserted into the oral cavity along the arc-shaped intubation channel 2, and the laryngoscope blade is conveniently taken out through the detachable bottom plate 4 and / or the intubation channel side plates 12 to complete the intubation.

[0066] Compared with the prior art, this disposable detachable visual laryngoscope blade has the function of guiding the tracheal tube, and does not need to be intubated according to the existing intubation operation mode, avoiding the blind exploration of the excessively bent tracheal tube in the oral cavity, causing damage to the oral tissue and contamination of the tracheal tube. The visual laryngoscope blade provided by the utility model can guide the tracheal tube directly to the glottis to complete the intubation. It has the advantages of reducing the difficulty of intubation and avoiding contamination of the tube.

[0067] The specific implementation method is as follows: when performing tracheal intubation under general anesthesia for a non-difficult airway, first insert the visual laryngoscope body into the arc-shaped lens body channel 1 and fasten it with the visual laryngoscope body through the buckle 5, then place the secured visual laryngoscope and the lens as a whole into the patient's mouth, slide down along the tongue surface until the front end of the lens tongue support plate 3 slides into the epiglottic valley, then lift the tongue body and epiglottis forward and upward according to the usual intubation skills, at this time the patient's glottis can be exposed, then place the tracheal tube without a tube core into the arc-shaped intubation channel 2, slide downward, and place the tracheal tube into the glottis under the guidance of the arc-shaped intubation channel; then pull out the bottom plate 4 of the arc-shaped intubation channel 2 of the laryngoscope blade, and then withdraw the laryngoscope without getting stuck with the tracheal tube; then adjust the intubation depth, inflate the cuff to a suitable pressure, fix the tube and connect it to the anesthesia machine, and the entire intubation operation process is completed.

[0068] Example 5

[0069] In this embodiment, a disposable visual laryngoscope blade with a detachable endotracheal tube guide channel is proposed. On the basis of embodiment 1, the relatively hard and detachable bottom plate that can be pulled out or inserted in embodiment 1 is replaced with a relatively soft bottom plate that can be shaped and has a curvature greater than the curvature of the arc-shaped tube channel when it is not originally stressed and a length greater than the length of the track groove. After the bottom plate 4 in this embodiment is inserted into the track groove 8, since the length of the bottom plate 4 is greater than the length of the track groove 8, the bottom plate 4 will extend out at the outlet of the arc-shaped tube channel 2, exceeding the length of the track groove 8. Due to the plasticity of the bottom plate 4 itself, the part becomes more curved again and tilted upward, and the degree of curvature is greater than the curvature of the arc-shaped intubation channel itself. When inserting the tracheal tube, the tracheal tube will be relatively more curved under the guidance of the bottom plate 4 with a greater curvature, so that the front end of the tracheal tube can be more accurately aligned with the glottis. For some patients, sometimes due to exposure, the front end of the tracheal tube cannot be perfectly aligned with the glottis when it extends out of the intubation channel. Therefore, by slightly extending the bottom plate 4 with a larger curvature out of the track groove, the tracheal tube can be made more curved to facilitate alignment with the glottis and facilitate insertion.

[0070] Example 6

[0071] In this embodiment, a disposable visual laryngoscope blade with a detachable endotracheal intubation guide channel is proposed. On the basis of embodiment 1, the relatively hard and detachable bottom plate that can be pulled out or inserted in embodiment 1 is replaced with a relatively soft bottom plate that can be shaped and has a length greater than the length of the track groove. The bottom plate 4 in this embodiment is a soft bottom plate that can be rolled into a cylinder when not subjected to force at the front end. When in use, the bottom plate 4 is inserted into the track groove 8. The length of the bottom plate at the outlet of the arc-shaped intubation channel 2 is greater than the length of the track groove 8, and the length of the bottom plate beyond the track groove 8 is greater than the length of the track groove 8. Part of it is rolled into a cylinder again due to the plasticity of the bottom plate 4 itself. When inserting the tracheal tube, the tracheal tube will be relatively more bent under the guidance of the front end of the bottom plate rolled into a cylinder at the exit of the arc-shaped intubation channel 2, so that the front end of the tracheal tube can be more accurately aligned with the glottis. For some patients, sometimes due to exposure reasons, the front end of the tracheal tube cannot be perfectly aligned with the glottis when it extends out of the arc-shaped intubation channel 2. Therefore, by slightly extending the bottom plate 4 whose front end can be rolled into a cylinder out of the track groove, the tracheal tube can be made more bent to facilitate alignment with the glottis and facilitate insertion.

[0072] The protection content of the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the utility model concept, changes and advantages that can be thought of by those skilled in the art are included in the present invention and are protected by the attached claims.

Claims

1. A disposable visual laryngoscope blade with a detachable endotracheal tube guide channel, characterized in that: The laryngoscope blade comprises two arc-shaped blade body channels (1) and an arc-shaped intubation channel (2) which are parallel to each other. The arc-shaped mirror body channel (1) is used to protect the visual laryngoscope lens and the light source; The arc-shaped intubation channel (2) is used to accommodate and guide the tracheal tube into the trachea; A partition plate (13) is provided between the arc-shaped mirror body channel (1) and the arc-shaped insertion tube channel (2); The arc-shaped cannula channel (2) comprises a detachable bottom plate (4) and / or a cannula channel side plate (12).

2. The visual laryngoscope blade according to claim 1, characterized in that: The arc-shaped mirror channel (1) is arc-shaped as a whole, and the mirror channel upper plate (3), the mirror channel side plates (10), the partition plate (13) shared with the arc-shaped intubation channel (2), and the mirror channel bottom plate (11) together constitute the main body of the arc-shaped mirror channel (1), the length of the mirror channel upper plate (3) is greater than the length of the mirror channel side plates (10); the mirror channel side plates (10) are far away from the arc-shaped intubation channel (2).

3. The visual laryngoscope blade according to claim 2, characterized in that: A baffle (9) is provided at the end of the arc-shaped mirror body channel (1); the baffle (9) is transparent and is used to seal one end of the arc-shaped mirror body channel (1); Another end of the arc-shaped mirror body channel (1) is a mirror body channel entrance (6), and a mirror body buckle (5) is fixedly provided at the mirror body channel entrance (6), and the mirror body buckle (5) can fix the mirror body extending into the arc-shaped mirror body channel (1).

4. The visual laryngoscope blade according to claim 1, characterized in that: The arc-shaped intubation channel (2) comprises a tongue support plate (14) and an intubation channel side plate (12); two track grooves (8) are symmetrically arranged along the bottom of the intubation channel side plate (12) and the partition plate (13), and the bottom plate (4) can be slidably inserted into the track grooves (8); the length of the track groove (8) is equal to the length of the intubation channel side plate (12) and / or the partition plate (13).

5. The visual laryngoscope blade according to claim 4, characterized in that: The shape and size of the bottom plate (4) match the track groove (8); the bottom plate (4) can be pulled, moved and separated in the track groove (8); and together with the tongue support plate (14), the partition plate (13) and the tube channel side plate (12), the bottom plate (4) forms the arc-shaped tube channel (2).

6. The visual laryngoscope blade according to claim 5, characterized in that: A bottom plate thickened head end (41) is provided at one end of the bottom plate (4), the thickness of the bottom plate thickened head end (41) being greater than the height of the track groove (8), so that the bottom plate (4) is fixed in the track groove (8).

7. The visual laryngoscope blade according to claim 4, characterized in that: A movable baffle capable of opening and closing the port is arranged at the outlet of the arc-shaped cannula channel (2).

8. The visual laryngoscope blade according to claim 1, characterized in that: The arc-shaped intubation channel (2) comprises a tongue-supporting plate (14) and a bottom plate (4); the tongue-supporting plate (14) and the bottom plate (4) are respectively provided with sliding grooves, and the intubation channel side plate (12) can be slidably inserted into the sliding grooves to close or open the arc-shaped intubation channel (2); and / or, Magnetic structures are respectively arranged on the tongue-supporting plate (14), the bottom plate (4) and the intubation channel side plate (12); the intubation channel side plate (12) is adsorbed on the tongue-supporting plate (14) and the side of the bottom plate (4) by the magnetic structure, thereby closing or opening the arc-shaped intubation channel (2).

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