Visual laryngoscope and trachea cannula protective sleeve device for difficult airway

Abstract

The utility model relates to a visual laryngoscope for a difficult airway, which can effectively reduce operation difficulty and improve use convenience and comprises a laryngoscope handle, a display screen arranged above the laryngoscope handle and a first laryngoscope tube arranged below the laryngoscope handle, and the outer end of the first laryngoscope tube is connected with a second laryngoscope tube through a bendable adjusting portion. Annular clamping grooves are formed in the first mirror tube and the second mirror tube; a lens and an illuminating lamp are arranged at the front end of the second laryngoscope tube, and an adjusting handle for controlling the adjusting part to bend is arranged on the laryngoscope handle. The utility model further provides a trachea cannula protection sleeve device, iatrogenic airway infection can be effectively reduced, the trachea cannula protection sleeve device comprises an endoscope tube protection sleeve and a cannula protection sleeve which are arranged side by side, the outer walls of the endoscope tube protection sleeve and the cannula protection sleeve are fixedly connected together, the inner diameter of the endoscope tube protection sleeve is matched with the outer diameter of the endoscope tube, and two soft tightening parts corresponding to the clamping grooves are arranged on the endoscope tube protection sleeve. A rubber band is arranged at the tightening part; and a perspective lens is sealed at the front end of the lens tube protective sleeve.

Description

Technical Field

[0001] This utility model relates to the field of laryngoscope intubation technology, specifically to a video laryngoscope for difficult airways and a protective sleeve for endotracheal intubation. Background Technology

[0002] Endotracheal intubation is a crucial procedure for establishing an artificial airway in anesthesiology. However, in clinical practice, there are often situations where rigid bronchoscopes are unsuitable for endotracheal intubation, such as cervical spine diseases (e.g., cervical spine injury, cervical spine fixation), facial trauma (e.g., mandibular trauma, limited mobility), and dental problems (e.g., loose incisors, excessively long lower incisors). In these cases, fiberoptic bronchoscopes are recommended for endotracheal intubation. However, this method is limited by the need to purchase expensive equipment, the requirement for anesthesiologists to undergo technical training to master the procedure, and the fact that the endotracheal tube inevitably introduces oral secretions or microorganisms into the airway during the procedure after passing through the closed oral cavity or nasal cavity, thus increasing the risk of airway infection. After endotracheal intubation guided by a fiberoptic bronchoscope, it needs to be disinfected before reuse and is easily damaged. Overall, the labor and equipment costs are high, the procedure is inconvenient, and the risk of infection for patients is high.

[0003] Therefore, how to provide a device that can effectively reduce the difficulty of operation, reduce the operating cost of such difficult airways, reduce the airway infection rate of patients, and improve the ease of use of the equipment has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a difficult airway video laryngoscope that can effectively reduce the difficulty of operation and improve the convenience of use, and to provide a endotracheal intubation protective sleeve device that can effectively reduce iatrogenic airway infection.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A video laryngoscope for difficult airways includes a laryngoscope handle, a display screen disposed above the laryngoscope handle, and a first endoscope tube disposed below the laryngoscope handle. The outer end of the first endoscope tube is connected to a second endoscope tube via a flexible adjustment part. Both the first and second endoscope tubes are provided with annular grooves. The front end of the second endoscope tube is provided with a lens and an illumination lamp. The laryngoscope handle is provided with an adjustment handle for controlling the bending of the adjustment part.

[0007] In one embodiment of this utility model, the laryngoscope handle is cylindrical or inverted conical, and a camera button for controlling the lens to take pictures is also provided on the laryngoscope handle. The camera button and the adjustment handle are located at the upper end of the laryngoscope handle.

[0008] In one embodiment of this utility model, the first and second endoscope tubes are made of rigid materials, the adjustment part is made of flexible materials or mechanical joints, and the adjustment handle is connected to the adjustment part through a connecting component.

[0009] In one embodiment of this utility model, the adjusting part has a through hole inside, and the connecting member is a metal guide wire or traction rack connected to the inside of the adjusting part.

[0010] In one embodiment of this utility model, the first endoscope tube and the laryngoscope handle are connected together in an arc shape at a 120° angle.

[0011] A endotracheal intubation protective sleeve device based on the aforementioned difficult airway video laryngoscope includes a scope tube protective sleeve and an intubation protective sleeve arranged side by side and fixed together on their outer walls. The inner diameter of the scope tube protective sleeve is adapted to the outer diameter of the scope tube. The scope tube protective sleeve is provided with two flexible tightening parts corresponding to the slots, and the tightening parts are equipped with rubber bands. The front end of the scope tube protective sleeve is sealed with a fluoroscopic lens.

[0012] In one embodiment of this utility model, the tightening part is made of elastic silicone material, and in its free state, the tightening part is cylindrical.

[0013] In one embodiment of this utility model, the sidewalls of the endoscope tube protective sleeve located between the two tightening parts are fixedly connected to the sidewalls of the insertion tube protective sleeve, while the sidewalls of the endoscope tube protective sleeve located outside the two tightening parts are separated from the sidewalls of the insertion tube protective sleeve.

[0014] In one embodiment of this utility model, both the endoscope tube protective sleeve and the cannula protective sleeve are transparent medical tubing.

[0015] The beneficial effects of adopting the above technical solution are as follows:

[0016] This invention provides a safer intubation tool for patients with difficult airways, especially those with cervical spine problems or incisor problems, where it is impossible to lift the mandible to expose the glottis. The difficult airway video laryngoscope has the adjustment flexibility of a fiberoptic bronchoscope, greatly reducing the technical requirements for medical staff and making it easier to solve difficult airway problems. At the same time, this invention also provides a tracheal intubation protective sleeve device, which can prevent oral secretions or microorganisms from being brought into the airway, reducing the incidence of iatrogenic airway infection caused by intubation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the laryngoscope in this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the endotracheal intubation protective sleeve in this utility model.

[0019] Figure 3 This is a schematic diagram of the endotracheal intubation protective sleeve from another angle.

[0020] Figure 4 This is a schematic diagram showing the usage status of the laryngoscope and endotracheal tube protective sleeve in this utility model.

[0021] The components include: 1. Laryngoscope handle, 2. Adjustment handle, 3. Camera button, 4. Display screen, 5. First laryngoscope tube, 6. Adjustment part, 7. Second laryngoscope tube, 8. Lens, 9. Slot, 10. Laryngoscope tube protective sleeve, 11. Tightening part, 12. Rubber band, 13. Translucency lens, 14. Intubation tube protective sleeve, 15. Endotracheal tube, 16. Air bag, and 17. Ventilation tube. Detailed Implementation

[0022] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be clearly and completely described below in conjunction with specific embodiments.

[0023] like Figure 1 The illustrated laryngoscope for difficult airways includes a laryngoscope handle 1, a display screen 4 positioned above the handle 1, and a first endoscope tube 5 positioned below the handle 1. The outer end of the first endoscope tube 5 is connected to a second endoscope tube 7 via a flexible adjustment part 6. Both the first and second endoscope tubes 5 and 7 are provided with annular grooves 9, which are funnel-shaped. A lens 8 and an illumination lamp are provided at the front end of the second endoscope tube 7. The laryngoscope handle 1 is provided with an adjustment handle 2 for controlling the bending of the adjustment part 6. The display screen 4 is an LCD screen with a power switch and a charging / USB flash drive connection port.

[0024] In this embodiment, the laryngoscope handle 1 is cylindrical or inverted conical, and the laryngoscope handle 1 is also provided with a camera button 3 for controlling the lens 8 to take pictures. The camera button 3 and the adjustment handle 2 are located at the upper end of the laryngoscope handle 1.

[0025] The first endoscope tube 5 and the second endoscope tube 7 are made of rigid materials, while the adjustment part 6 is made of flexible materials or a mechanical joint. The adjustment handle 2 is connected to the adjustment part 6 via a connecting member, and the adjustment part 6 has a through hole inside. When the adjustment part 6 is a flexible tubing, the connecting member is a metal guide wire or traction rack connected to the inside of the adjustment part 6. The adjustment handle 2 controls the metal guide wire or traction rack to bend the adjustment part 6, thereby causing the second endoscope tube 7 to shift angle, achieving angle adjustment of the outer end of the endoscope tube. Chinese patents with publication numbers CN201752398U and CN219166357U disclose this. When the adjustment part 6 is a mechanical joint, it can be in the form of a snake bone, with multiple snake bone joints with through holes connected sequentially. The connecting member is two symmetrically arranged metal guide wires. The metal guide wires pass through the through hole of each snake bone joint and connect to the foremost snake bone joint. The other end of the metal guide wire is connected to the adjustment handle 2, which is used to bend the adjustment part 6. This has been disclosed in Chinese Patent Publication No. CN216933145U. Adjusting the angle of the adjustment unit 6 using the handle 2 is a conventional technique in the field and is widely used in fiberoptic bronchoscopes; therefore, it will not be described in detail here.

[0026] The first endoscope tube 5 is connected to the laryngoscope handle 1 at a 120° arc angle. The first endoscope tube 5, the adjustment part 6, and the second endoscope tube 7 constitute the endoscope tube. The adjustment part 6 and the second endoscope tube 7 are of similar length, each occupying about 1 / 4 of the total length of the endoscope tube. The slot 9 on the first endoscope tube 5 is located at the rear end of the straight section of the first endoscope tube 5.

[0027] like Figures 2-4 As shown, this utility model also provides a tracheal intubation protective sleeve device based on the aforementioned difficult airway video laryngoscope, which includes a scope tube protective sleeve 10 and an intubation tube protective sleeve 14 arranged side by side and fixed together on their outer walls. The inner diameter of the scope tube protective sleeve 10 is adapted to the outer diameter of the scope tube. The scope tube protective sleeve 10 is provided with two flexible tightening parts 11 corresponding to the slots 9. The tightening parts 11 are equipped with rubber bands 12, which restrict the tightness of the tightening parts 11 to prevent them from falling off and accidentally entering the airway. The front end of the scope tube protective sleeve 10 is closed with a transparent lens 13, which allows the internal structure of the oral cavity to be observed through the lens 8. The intubation tube protective sleeve 14 is open at both ends, and its inner diameter is larger than the outer diameter of the tracheal tube 15 and the tracheal tube connection port.

[0028] In this embodiment, the tightening part 11 is made of elastic silicone material. In its free state, the tightening part 11 is cylindrical. Under the action of the elastic band 12, the tightening part 11 will become funnel-shaped and be stuck in the slot 9.

[0029] In one embodiment, the sidewalls of the endoscope tube protective sleeve 10 are all fixedly connected to the sidewalls of the intubation cannula protective sleeve 14. In this case, the elastic band 12 is restrained at the position of the tightening part 11 and will not fall off. In another embodiment, the sidewalls of the endoscope tube protective sleeve 10 located between the two tightening parts 11 are all fixedly connected to the sidewalls of the intubation cannula protective sleeve 14, while the sidewalls of the endoscope tube protective sleeve 10 located outside the two tightening parts 11 are separated from the sidewalls of the intubation cannula protective sleeve 14, which facilitates the assembly and disassembly of the elastic band 12. In this case, the elastic band 12 is fixedly connected to the endoscope tube protective sleeve 10, preventing the elastic band 12 from falling off and accidentally entering the airway.

[0030] Both the endoscope tube protective sleeve 10 and the endotracheal tube protective sleeve 14 are transparent medical tubing. The cuff 16 at the front end of the endotracheal tube 15 is connected to the ventilation tube 17.

[0031] Usage process:

[0032] like Figure 4 As shown, the endoscope tube protective sleeve 10 of the endotracheal intubation protective sleeve device is put on the endoscope tube of the difficult airway video laryngoscope, so that the tightening part 11 is aligned with the slot 9, and the two rubber bands 12 are put on the two tightening parts 11 to fix the endotracheal intubation protective sleeve device on the video laryngoscope.

[0033] During endotracheal intubation, after administering general anesthesia, the video laryngoscope is inserted into the oral cavity. The right hand, wearing a glove, gently lifts the chin, while the left hand holds the laryngoscope handle 1. The position of the oral cavity is observed through the display screen 4. Simultaneously, the adjustment handle 2 is operated to control the up-and-down movement of the endoscope tube. The left wrist is used to rotate the endoscope tube to achieve left-and-right rotation of the endoscope tube. The endoscope tube is then moved around the epiglottis, pushed to the glottis, and fixed. The right hand inserts the endotracheal tube 15 into the endoscope protective sleeve 14. Under the observation of the video laryngoscope, after inserting it 1cm into the glottis, the assistant removes the stylet of the endotracheal tube 15. After placing a bite block in the oral cavity, the video laryngoscope and the endotracheal tube protective sleeve are removed from the oral cavity. Subsequently, air is inflated, and the position of the endotracheal tube 15 is confirmed by auscultation. Once the position is correct, the endotracheal tube 15 is fixed with adhesive tape.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A video laryngoscope for difficult airways, characterized in that: It includes a laryngoscope handle (1), a display screen (4) located above the laryngoscope handle (1), and a first endoscope tube (5) located below the laryngoscope handle (1). The outer end of the first endoscope tube (5) is connected to the second endoscope tube (7) through a flexible adjustment part (6). Both the first endoscope tube (5) and the second endoscope tube (7) are provided with annular grooves (9). The front end of the second endoscope tube (7) is provided with a lens (8) and a lighting lamp. The laryngoscope handle (1) is provided with an adjustment handle (2) for controlling the bending of the adjustment part (6).

2. The difficult airway video laryngoscope according to claim 1, characterized in that: The laryngoscope handle (1) is cylindrical or inverted conical. The laryngoscope handle (1) is also provided with a camera button (3) for controlling the lens (8) to take pictures. The camera button (3) and the adjustment handle (2) are located at the upper end of the laryngoscope handle (1).

3. A video laryngoscope for difficult airways according to claim 1, characterized in that: The first lens tube (5) and the second lens tube (7) are made of rigid material, the adjustment part (6) is made of flexible material or mechanical joint, and the adjustment handle (2) is connected to the adjustment part (6) through a connecting member.

4. A video laryngoscope for difficult airways according to claim 3, characterized in that: The adjustment part (6) has a through hole inside, and the connecting member is a metal guide wire or traction rack connected to the inside of the adjustment part (6).

5. A video laryngoscope for difficult airways according to claim 1, characterized in that: The first endoscope tube (5) is connected to the laryngoscope handle (1) at a 120° arc angle.

6. A endotracheal intubation protective sleeve device based on the difficult airway video laryngoscope according to any one of claims 1-5, characterized in that: It includes a protective sleeve (10) for the endoscope tube and a protective sleeve (14) for the insertion tube, which are arranged side by side and fixed together on the outer wall. The inner diameter of the protective sleeve (10) is adapted to the outer diameter of the endoscope tube. The protective sleeve (10) is provided with two soft tightening parts (11) corresponding to the slots (9). The tightening parts (11) are equipped with rubber bands (12). The front end of the protective sleeve (10) is closed with a fluoroscopic lens (13).

7. The endotracheal tube protective sleeve device according to claim 6, characterized in that: The tightening part (11) is made of elastic silicone material. In its free state, the tightening part (11) is cylindrical.

8. The endotracheal tube protective sleeve device according to claim 7, characterized in that: The sidewalls of the endoscope tube protective sleeve (10) located between the two tightening parts (11) are fixed together with the sidewalls of the insertion tube protective sleeve (14), while the sidewalls of the endoscope tube protective sleeve (10) located outside the two tightening parts (11) are separated from the sidewalls of the insertion tube protective sleeve (14).

9. A endotracheal tube protective sleeve device according to claim 6, characterized in that: Both the endoscope tube protective sleeve (10) and the intubation tube protective sleeve (14) are transparent medical tubing.

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