Disposable visual laryngoscope capable of preventing fog and realizing surface anesthesia

Abstract

The utility model discloses a disposable visual laryngoscope capable of preventing fog and realizing surface anesthesia, which comprises a visual display screen, a laryngoscope handle, a laryngoscope lens and an injector, the visual display screen is arranged at one end of the laryngoscope handle, the laryngoscope lens is arranged at the other end of the laryngoscope handle, a camera is arranged at the front end of the laryngoscope lens, and the camera is connected with the visual display screen through a cable. The injector is detachably arranged on the laryngoscope handle and connected with one end of the spray pipe, the other end of the spray pipe extends into the laryngoscope blade from the rear end of the laryngoscope blade and extends out of the front end of the laryngoscope blade, the atomization nozzle is arranged at the front end of the spray pipe and supported and fixed through an adjusting support arranged in the laryngoscope blade, and the fixing plate is arranged on the side wall of the laryngoscope handle. A positioning plate is arranged at one end of the fixing plate, a positioning hole is formed in the positioning plate, and the positioning plate is fixedly connected with a laryngoscope handle through a positioning screw arranged in the positioning hole. The laryngoscope can effectively infiltrate local anesthesia medicine on the throat, and the visual laryngoscope cannot fog when entering the oropharynx.

Description

Technical Field

[0001] This utility model relates to the field of medical throat anesthesia surgical equipment technology, and in particular to a disposable video laryngoscope that is fog-proof and provides surface anesthesia. Background Technology

[0002] A video laryngoscope is a flexible, small, and soft endoscope that can be bent at will. It can be inserted into small physiological or pathological cavities at angles according to the operation requirements to observe minute lesions and collect tissue or cell specimens. It is an effective modern tool for diagnosing diseases and is particularly suitable for emergency treatment of various types of difficult endotracheal intubation. The laryngoscope is used to expose the glottis during endotracheal intubation in the process of general anesthesia induction and on-site cardiopulmonary resuscitation. Its application in clinical surgical medicine is increasing.

[0003] Currently, during the local infiltration of anesthetic drugs into the pharynx (laryngeal spray) under visual guidance using a video laryngoscope, the narrow space in the pharynx makes it difficult to determine the position of the anesthetic instrument, resulting in a large waste of anesthetic solution. It is also inconvenient to adjust the anesthetic position of the anesthetic instrument. Furthermore, the video laryngoscope fogs up after entering the oropharynx, making it difficult to determine the anesthetic site and increasing the difficulty of pharyngeal anesthesia. Utility Model Content

[0004] This invention provides a disposable video laryngoscope that is fog-proof and provides surface anesthesia, solving the problems of traditional video laryngoscopes fogging up when inserted into the oropharynx, rendering them unusable, and the inability to adjust anesthesia devices, making it difficult to determine the anesthesia site.

[0005] This utility model provides a disposable video laryngoscope that is fog-proof and provides surface anesthesia. It includes a video display screen, a laryngoscope handle, and a laryngoscope blade. The video display screen is located at one end of the laryngoscope handle, and the laryngoscope blade is located at the other end of the handle. A camera is located at the front end of the laryngoscope blade, and the camera is connected to the video display screen via a cable. It also includes a syringe, which is detachably mounted on the laryngoscope handle. The syringe is connected to one end of a spray tube, and the other end of the spray tube extends into the rear end of the laryngoscope blade and extends out from the front end. An atomizing nozzle is located at the front end of the spray tube, and the atomizing nozzle is supported and fixed by an adjustment bracket inside the laryngoscope blade.

[0006] Furthermore, a fixing plate is provided on the side wall of the laryngoscope handle, and a positioning plate is provided at one end of the fixing plate. The positioning plate is provided with a positioning hole, and the positioning plate is fixedly connected to the laryngoscope handle through a positioning screw provided in the positioning hole. Multiple mounting plates are vertically provided on the side wall of the fixing plate, and each mounting plate is provided with a mounting hole on its side wall. The syringe is fixedly fitted into the mounting hole of the mounting plate.

[0007] Furthermore, the atomizing nozzle includes a spray pipe and an atomizing head. One end of the spray pipe is connected to the spray tube, and the other end is connected to the atomizing head. Spray holes are provided on the side wall of the spray pipe.

[0008] Furthermore, the adjusting bracket includes a fixed rod, a movable sleeve, a rotating rod, a tube clamp, and an adjusting rope. The two ends of the fixed rod are respectively fixedly connected to the two inner sidewalls of the laryngeal blade. The movable sleeve is fitted onto the fixed rod. Two rotating rods are symmetrically arranged on the upper and lower sidewalls of the movable sleeve. The upper rotating rod is connected to one end of a positioning rod, and the other end of the positioning rod is fixedly connected to a tube clamp. The tube clamp is fixedly connected to the nozzle. The lower rotating rod is connected to one end of an adjusting rope, and the other end of the adjusting rope extends from the rear end of the laryngeal blade.

[0009] Furthermore, the fixing rod includes a telescopic tube and an adjusting rod. One end of the telescopic tube is fixed against the inner wall of one side of the laryngeal blade, and the other end is provided with a central threaded hole along the axial direction. The telescopic tube is connected to one end of the adjusting rod through its central threaded hole, and the other end of the adjusting rod is fixed against the other side wall of the laryngeal blade.

[0010] Furthermore, a torsion spring is fitted onto the fixed rod on one side of the movable sleeve. One end of the torsion spring is elastically and fixedly connected to the fixed rod, and the other end of the torsion spring is elastically and fixedly connected to the movable sleeve.

[0011] As can be seen from the above technical solutions, this utility model provides a disposable video laryngoscope that is fog-proof and provides surface anesthesia.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The adjustable bracket facilitates the adjustment of the spray angle of the nebulizer nozzle, which increases the accuracy of the anesthetic spray and improves the utilization rate of the anesthetic. It can fully infiltrate the pharynx with local anesthetic, further improve the endotracheal intubation response, increase the surgical efficiency of pharyngeal anesthesia, and reduce the operational difficulty of pharyngeal anesthesia surgery.

[0014] 2. Effective local anesthetic spray is administered via video laryngoscope. The anesthetic sprayer improves the field of view of the video laryngoscope while spraying the laryngeal fluid, avoiding the phenomenon of unclear vision caused by fogging of the video laryngoscope.

[0015] 3. By using the syringe in conjunction with the video laryngoscope, there will be no errors, and anesthesia can be performed safely and accurately, allowing patients to receive timely rescue and reduce their pain. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a disposable video laryngoscope that is fog-proof and provides surface anesthesia, as proposed in this utility model.

[0018] Figure 2 This is a cross-sectional schematic diagram of the overall structure of a disposable video laryngoscope that is fog-proof and provides surface anesthesia, as proposed in this utility model.

[0019] Figure 3 Appendix to this utility model Figure 2 A partially enlarged structural diagram of position I;

[0020] Figure 4 This is a cross-sectional schematic diagram of the laryngoscope blade structure of a disposable video laryngoscope that is fog-proof and provides surface anesthesia, as proposed in this utility model.

[0021] Figure 5 Appendix to this utility model Figure 4 A magnified schematic diagram of the partial structure at position II;

[0022] Figure 6 This is a schematic diagram of the installation structure of the adjustable bracket of a disposable video laryngoscope that is fog-proof and provides surface anesthesia, as proposed in this utility model.

[0023] In the picture:

[0024] 1-Visual display screen;

[0025] 2-Laryngoscope handle; 21-Fixing plate; 22-Positioning plate; 23-Positioning screw; 24-Mounting plate; 241-Mounting hole;

[0026] 3-Laryngeal blade; 31-Camera; 32-Cable;

[0027] 4- Syringe;

[0028] 5-Spray nozzle;

[0029] 6-Atomizing nozzle; 61-Spray tube; 62-Atomizing head; 611-Spray hole;

[0030] 7-Adjusting bracket; 71-Fixed rod; 72-Modible sleeve; 73-Rotating rod; 74-Pipe clamp; 75-Adjusting rope; 76-Positioning rod; 77-Torsion spring; 711-Telescopic tube; 712-Adjusting rod. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0032] Example 1:

[0033] See Figure 1-6 A disposable video laryngoscope with anti-fog and surface anesthesia capabilities includes a video display screen 1, a laryngoscope handle 2, and a laryngoscope blade 3. The video display screen 1 is located at the rear end of the laryngoscope handle 2, and the laryngoscope blade 3 is located at the front end of the laryngoscope handle 2. The laryngoscope handle 2 includes a metal rod and a rubber elbow at the front end of the metal rod. The front end of the rubber elbow has the same shape as the inner cavity of the laryngoscope blade 3 and is fixed by partially embedding it into the rear end of the laryngoscope blade 3. A camera 31 is located at the front end of the laryngoscope blade 3. The camera 31 is electrically connected to the video display screen 1 via a cable 32 to transmit real-time images of the pharynx. A lamp is also integrated into the camera 31 to illuminate the pharynx. A battery is located at the rear of the display screen 1 to power the video display screen 1, the camera 31, and the lamp. The camera 31 is connected to the camera via a wire and a signal line. The head 31 is electrically connected and also includes a syringe 4, which is detachably mounted on the laryngoscope handle 2. The syringe 4 is connected to one end of a spray tube 5, and the other end of the spray tube 5 extends into the rear end of the laryngoscope blade 3 and extends out from the front end of the laryngoscope blade 3. An atomizing nozzle 6 is provided at the front end of the spray tube 5. The atomizing nozzle 6 is supported and fixed by an adjustment bracket 7 provided inside the laryngoscope blade 3. The spray angle of the atomizing nozzle 6 can be easily adjusted by adjusting the bracket 7, which increases the accuracy of the atomizing nozzle 6 in spraying anesthetic drugs and improves the utilization rate of anesthetic drugs. When used in conjunction with a video laryngoscope, it can fully infiltrate the pharynx and larynx with local anesthetic drugs, further improve the endotracheal intubation response, and at the same time avoid the blurred vision caused by fogging of the video laryngoscope, thereby increasing the surgical efficiency of pharyngeal anesthesia and reducing the operational difficulty of pharyngeal anesthesia surgery.

[0034] In this embodiment, see Figure 2 A fixing plate 21 is provided on the side wall of the laryngoscope handle 2, and a positioning plate 22 is provided at one end of the fixing plate 21. The positioning plate 22 is provided with a positioning hole. The positioning plate 22 is fixedly connected to the rubber sleeve end face of the laryngoscope handle 2 through the positioning screw 23 provided in the positioning hole. Multiple mounting plates 24 are vertically provided on the side wall of the fixing plate 21. Each mounting plate 24 is provided with a through mounting hole 241 on its side wall. The syringe 4 is fixed inside the mounting hole 241 of the mounting plate 24. The syringe 4 is clearance-fitted with the mounting hole 241. During the anesthesia operation, by inserting and fixing the syringe 4 in the mounting hole 241 of the mounting plate 24, the syringe 4 is prevented from falling off. The operator only needs to control the piston rod of the syringe and does not need to fix the syringe 4 by hand. This simplifies the operation of the syringe 4 and reduces the difficulty of the pharyngeal anesthesia operation.

[0035] In this embodiment, see Figure 6The atomizing nozzle 6 includes a nozzle 61 and an atomizing head 62. One end of the nozzle 61 is connected to the spray pipe 5, and the other end is connected to the atomizing head 62. A spray hole 611 is provided on the side wall of the nozzle 61. The anesthetic liquid inside the atomizing nozzle 6 can clean the camera 31 through the spray hole 611 to prevent the syringe 4 from fogging up and becoming blurry during use.

[0036] In this embodiment, see Figure 3 , 4 5. The adjusting bracket 7 includes a fixed rod 71, a movable sleeve 72, a rotating rod 73, a tube clamp 74, and an adjusting rope 75. The two ends of the fixed rod 71 are fixedly connected to the two inner sidewalls of the laryngeal blade 3, respectively. The movable sleeve 72 is fitted onto the fixed rod 71. Two radially distributed rotating rods 73 are symmetrically arranged on the upper and lower sidewalls of the movable sleeve 72. One end of each rotating rod 73 is fixedly connected to the outer wall of the movable sleeve 72, and the other end extends outward and is suspended. A positioning rod 76 is fixedly installed at the upper end of the upper rotating rod 73. One end of the positioning rod 76 is fixedly connected to the upper rotating rod 73, and the other end is fixedly connected to the tube clamp 74. The tube clamp 74 is fixedly connected to the nozzle 61. The lower end of the rotating rod 73 is connected to one end of the adjusting rope 75. The other end of the adjusting rope 75 extends from the rear end of the laryngoscope blade 3. By pulling the adjusting rope 75, the movable sleeve 72 is driven to rotate coaxially along the fixed rod 71. The rotation of the movable sleeve 72 drives the upper rotating rod 73 to rotate forward and downward, which drives the positioning rod 76 to move downward. The positioning rod 76 drives the nozzle 61 to tilt downward through the tube clamp 74, so that the atomizing head 62 on the nozzle 61 can be adjusted to tilt forward at an angle, which makes it easier to spray anesthetic liquid into the pharynx and target the anesthesia site. The adjustment speed is fast and the anesthesia accuracy is increased.

[0037] In this embodiment, see Figure 6 The fixing rod 71 includes a telescopic tube 711 and an adjusting rod 712. One end of the telescopic tube 711 is fixed against the inner wall of one side of the laryngeal blade 3, and the other end is provided with a central threaded hole along the axial direction. The telescopic tube 711 is connected to one end of the adjusting rod 712 through its central threaded hole. The other end of the adjusting rod 712 is fixed against the other side wall of the laryngeal blade 3. By fixing the fixing rod 71 against the two inner walls of the laryngeal blade 3 respectively, and by rotating the telescopic tube 711 relative to the adjusting rod 712, the telescopic tube 711 and the adjusting rod 712 are respectively against the two inner walls of the laryngeal blade 3, so that the fixing rod 71 is horizontally fixed inside the laryngeal blade 3, and the atomizing nozzle 6 is fixed inside the laryngeal blade 3. It is easy to disassemble and install. When disassembling, only the adjusting rod 712 needs to be fixed and the telescopic tube 711 needs to be rotated to disassemble the fixing rod 71, and then the atomizing nozzle 6 can be removed.

[0038] In this embodiment, see Figure 3A torsion spring 77 is fitted on the fixed rod 71 on one side of the movable sleeve 72. One end of the torsion spring 77 is elastically fixed to the fixed rod 71, and the other end of the torsion spring 77 is elastically fixed to the movable sleeve 72.

[0039] As can be seen from the above technical solution, in use, firstly, anesthetic drugs are filled into the syringe 4, and then the syringe 4 is inserted and fixed in the mounting hole 241 of the mounting plate 24. The spray tube 5 is connected to the syringe 4. Then, the anesthesiologist holds the laryngoscope handle 2 of the video laryngoscope with his left hand, turns on the laryngoscope blade light source, turns on the video camera 31, observes through the video display screen 1, and routinely inserts the laryngoscope blade into the pharynx until the glottis can be clearly seen through the video screen. The anesthesiologist pulls the rotating rod 73 through the movable sleeve 72 on the fixed rod 71 by adjusting the rope 75, so that the upper end of the rotating rod 73 rotates forward, driving the spray tube 61 forward and downward, rotating it at a certain angle to aim at the position in the pharynx that needs anesthesia. The anesthesiologist then presses the piston rod of syringe 4 with their right hand, introducing the anesthetic drug inside syringe 4 into the nebulizer nozzle 6 through spray tube 5. The anesthetic drug inside the nebulizer nozzle 6 is sprayed laterally onto the lens of camera 31 through spray hole 611, rinsing the lens of camera 31 and preventing fogging that would cause blurred vision. At the same time, the anesthetic drug inside the nebulizer nozzle 6 is sprayed directly onto the throat anesthesia site through the nozzle, ensuring precise spraying and increasing the utilization rate of anesthetic drug. Overall, this invention eliminates errors during intubation, allowing for safe and accurate anesthesia surgery, enabling timely rescue of patients, shortening the anesthesia surgery time, and reducing patient suffering.

[0040] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of the invention is indicated by the claims.

[0041] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model.

Claims

1. A disposable video laryngoscope with anti-fogging and surface anesthesia function, comprising a video display screen (1), a laryngoscope handle (2), and a laryngoscope blade (3), wherein the video display screen (1) is disposed at one end of the laryngoscope handle (2), and the laryngoscope blade (3) is disposed at the other end of the laryngoscope handle (2), wherein a camera (31) and a light source are disposed at the front end of the laryngoscope blade (3), and the camera (31) is connected to the video display screen (1) via a cable (32), characterized in that: It also includes a syringe (4), which is detachably mounted on the laryngoscope handle (2). The syringe (4) is connected to one end of the spray tube (5), and the other end of the spray tube (5) extends into the rear end of the laryngoscope blade (3) and extends out from the front end of the laryngoscope blade (3). The front end of the spray tube (5) is provided with an atomizing nozzle (6), which is supported and fixed by an adjustment bracket (7) provided inside the laryngoscope blade (3).

2. The disposable video laryngoscope with anti-fogging and surface anesthesia function according to claim 1, characterized in that, A fixing plate (21) is provided on the side wall of the laryngoscope handle (2). A positioning plate (22) is provided at one end of the fixing plate (21). The positioning plate (22) is fixedly connected to the laryngoscope handle (2) by positioning screws (23). Multiple mounting plates (24) are vertically arranged on the side wall of the fixing plate (21). Each mounting plate (24) has a mounting hole (241) on its side wall. The syringe (4) is fixed inside the mounting hole (241) of the mounting plate (24).

3. The disposable video laryngoscope with anti-fogging and surface anesthesia function according to claim 1, characterized in that, The atomizing nozzle (6) includes a spray pipe (61) and an atomizing head (62). One end of the spray pipe (61) is connected to the spray pipe (5), and the other end is connected to the atomizing head (62). A spray hole (611) is provided on the side wall of the spray pipe (61).

4. A disposable video laryngoscope with anti-fogging and surface anesthesia capability according to claim 3, characterized in that, The adjusting bracket (7) includes a fixed rod (71), a movable sleeve (72), a rotating rod (73), a tube clamp (74), and an adjusting rope (75). The two ends of the fixed rod (71) are fixedly connected to the two inner side walls of the laryngeal blade (3). The movable sleeve (72) is fitted on the fixed rod (71). Two rotating rods (73) are symmetrically arranged on the upper and lower side walls of the movable sleeve (72). The upper rotating rod (73) is connected to one end of the positioning rod (76), and the other end of the positioning rod (76) is connected to the tube clamp (74). The tube clamp (74) is connected to the nozzle (61). The lower rotating rod (73) is connected to one end of the adjusting rope (75), and the other end of the adjusting rope (75) extends from the rear end of the laryngeal blade (3).

5. A disposable video laryngoscope with anti-fogging and surface anesthesia capability according to claim 4, characterized in that, The fixing rod (71) includes a telescopic tube (711) and an adjusting rod (712). One end of the telescopic tube (711) is fixed against the inner wall of one side of the laryngeal blade (3), and the other end is provided with a central threaded hole along the axial direction. The telescopic tube (711) is connected to one end of the adjusting rod (712) through its central threaded hole, and the other end of the adjusting rod (712) is fixed against the other side wall of the laryngeal blade (3).

6. A disposable video laryngoscope with anti-fogging and surface anesthesia capability according to claim 5, characterized in that, A torsion spring (77) is fitted on the fixed rod (71) on one side of the movable sleeve (72). One end of the torsion spring (77) is elastically fixed to the fixed rod (71), and the other end of the torsion spring (77) is elastically fixed to the movable sleeve (72).

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