Three-dimensional laryngoscope

Abstract

The utility model belongs to the technical field of medical assistance, and discloses a three-dimensional laryngoscope which comprises a handle, one end of the handle is connected with a display control module, the other end of the handle is rotatably connected with a connecting tube through a first rotating shaft, the other end of the connecting tube is fixedly connected with a laryngoscope blade, and the handle, the connecting tube and the laryngoscope blade are connected with a transmission line. The free end of the transmission line is connected with a camera; the first rotating shaft is connected with a first synchronous wheel, a second synchronous wheel is fixedly connected in the handle through a second rotating shaft, and the first synchronous wheel and the second synchronous wheel are connected through a synchronous belt; the second rotating shaft penetrates through the side wall of the handle and is connected with a knob; the handle is provided with a limiting device used for limiting rotation of the second rotating shaft. The angle between the laryngoscope blade and the handle can be adjusted, the handle is prevented from being obstructed by the chest of a patient, and the laryngoscope can meet different clinical requirements.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary equipment technology, and in particular to a three-dimensional laryngoscope. Background Technology

[0002] A 3D laryngoscope is a commonly used medical instrument for examining the oral cavity and trachea. It is used by medical personnel to observe oral and pharyngeal tissues, or to manipulate the tongue, larynx, or larynx to facilitate the insertion of endotracheal tubes or other devices. During anesthesia and emergency endotracheal intubation, medical personnel can perform endotracheal intubation through the laryngoscope screen, ensuring a safe and effective procedure and reducing complications. A laryngoscope generally consists of a laryngeal blade and a scope body, which includes a handle and a control and display module. During endotracheal intubation, the laryngeal blade is first inserted into the patient's mouth, gradually deepening it. The tongue is pressed against the floor of the mouth to expose the pharynx. After clearly seeing the epiglottis, the tip of the blade is placed at the vallecula (vallecula between the epiglottis and the base of the tongue), bringing the epiglottis as close to the base of the tongue as possible to expose the glottis and pharyngeal cavity previously obscured by the epiglottis. The endotracheal tube is then inserted into the trachea, aligned with the glottis. The laryngoscope is then withdrawn, completing the intubation.

[0003] The angle formed by the handle and the tip of the laryngoscope blade in a three-dimensional laryngoscope is approximately 90°. This makes it inconvenient for patients with short necks to insert the laryngoscope. Currently, some solutions involve inserting the laryngoscope blade and the scope separately. However, blind insertion may pose a risk of injury. Furthermore, when operating this type of laryngoscope, the handle can easily be obstructed by the patient's chest, making insertion difficult. Clinically, tilting the patient's neck back is often used to slightly address this issue, but this increases the risk of cervical spine injury. This method is not suitable for patients with cervical spondylosis or those with limited cervical spine mobility. Utility Model Content

[0004] This invention aims to provide a three-dimensional laryngoscope that, by adjusting the angle between the handle and the laryngeal blade, can be adapted to different patients, preventing the handle from being obstructed by the patient's chest. A limiting device is used to fix the angle between the handle and the laryngeal blade, facilitating use by patients with cervical spondylosis or limited cervical spine mobility. This solves the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A three-dimensional laryngoscope includes a handle, one end of which is connected to a display control module, and the other end of which is rotatably connected to a connecting tube via a first rotating shaft. The other end of the connecting tube is fixedly connected to a laryngoscope blade. A transmission line passes through and connects the handle, the connecting tube, and the laryngoscope blade. One end of the transmission line is connected to the display control module, and the other end is connected to a camera. A first synchronous pulley is fixedly connected to the first rotating shaft. A second synchronous pulley is fixedly connected to the end of the handle away from the connecting tube via a second rotating shaft. The first and second synchronous pulleys are connected by a synchronous belt. A knob is connected to one end of the second rotating shaft through the side wall of the handle. The handle is provided with a limiting device for restricting the rotation of the second rotating shaft.

[0007] Furthermore, the limiting device includes a screw connected to the handle by a thread, the axis of the screw being perpendicular to the axis of the second rotating shaft, the second rotating shaft having a limiting groove corresponding to the position of the screw, and one end of the screw penetrating the side wall of the handle and having a limiting rod adapted to the diameter of the limiting groove.

[0008] Furthermore, the end of the limiting rod away from the screw is configured as a cone shape.

[0009] Furthermore, a threaded sleeve is fixedly connected to the side wall of the handle, and the threaded sleeve is connected to the screw via a thread.

[0010] Furthermore, a knob is fixedly connected to one end of the screw located on the outside of the handle, and the knob is provided with several anti-slip strips along the circumference.

[0011] Furthermore, both the inner wall of the limiting groove and the outer wall of the limiting rod are coated with a wear-resistant layer.

[0012] Furthermore, the display control module is connected to the handle via a ball joint assembly.

[0013] Furthermore, the display control module is wirelessly connected to an LCD screen.

[0014] Furthermore, both the first and second rotating shafts are rotatably connected to the handle via bearings.

[0015] Furthermore, the number of cameras is three, and the three cameras are evenly distributed along the circumference of the transmission line.

[0016] The principles and beneficial effects of the technical solution:

[0017] 1. This utility model provides a three-dimensional laryngoscope. The handle connects the control and display module to the laryngoscope and is easy for medical personnel to hold. One end of the handle is connected to the display and control module, and the other end of the handle is rotatably connected to a connecting tube via a first rotating shaft. The other end of the connecting tube is fixedly connected to a laryngoscope blade. A transmission line runs through the handle, connecting tube, and laryngoscope blade. One end of the transmission line is connected to the display and control module, and the other end is connected to a camera. The camera transmits images of the glottis and pharyngeal cavity to the display and control module via the transmission line, allowing medical personnel to view the intubation. A drive assembly is provided inside the connecting tube to adjust the angle between the laryngoscope blade and the handle. Specifically, a first synchronous wheel is fixedly connected to the first rotating shaft, and the end of the handle furthest from the connecting tube is fixedly connected to a second rotating shaft. The first and second synchronous pulleys are connected by a synchronous belt. One end of the second rotating shaft passes through the side wall of the handle and is connected to a knob. The handle is equipped with a limiting device to restrict the rotation of the second rotating shaft. When the angle needs to be adjusted, the medical staff uses their right hand to turn the knob on the second rotating shaft, which drives the second rotating shaft to rotate. The second rotating shaft drives the second synchronous pulley to rotate, which in turn drives the first synchronous pulley to rotate via the synchronous belt. The first synchronous pulley drives the laryngoscope blade to rotate via the first rotating shaft, thereby adjusting the angle between the handle and the laryngoscope blade. After the angle is adjusted to the appropriate position, the limiting device is used to restrict the second rotating shaft from continuing to rotate, thus fixing the angle. The angle of this device can be adjusted arbitrarily to accommodate different patients, avoid the handle being obstructed by the patient's chest, reduce the difficulty of laryngoscope insertion, and is easy to operate.

[0018] 2. This utility model provides a three-dimensional laryngoscope, the limiting device including a screw connected to the handle by a thread, the axis of the screw being perpendicular to the axis of a second rotating shaft, the second rotating shaft having a limiting groove corresponding to the position of the screw, one end of the screw penetrating the side wall of the handle and having a limiting rod adapted to the diameter of the limiting groove, when the second rotating shaft needs to be rotated, the screw is rotated to disengage the limiting rod from the limiting groove, thereby releasing the limiting rod from restricting the rotation of the second rotating shaft, when the rotation of the second rotating shaft needs to be restricted, the screw is rotated in the opposite direction to insert the limiting rod into the limiting groove, restricting the second rotating shaft from continuing to rotate, thereby fixing the angle between the handle and the laryngoscope blade, which is convenient to operate, and the limiting block is locked by a thread. The connection is stable. Furthermore, both knobs are located on the handle near the display control module, further enhancing ease of operation. The end of the limit rod furthest from the screw is conical, reducing resistance when the limit rod inserts into the limit groove. Both the inner wall of the limit groove and the outer wall of the limit rod are coated with a wear-resistant layer to prevent mutual wear and reduce costs. A threaded sleeve is fixedly connected to the side wall of the handle, and the threaded sleeve is connected to the screw via threads, increasing the contact area between the screw and the handle, enhancing connection stability, and preventing the laryngeal blade from loosening during use. A knob is fixedly connected to the outer end of the screw on the handle, and the knob has several anti-slip strips along its circumference to prevent slippage and increase ease of operation.

[0019] 3. This utility model provides a three-dimensional laryngoscope in which the display control module and the handle are rotatably connected via a universal ball joint assembly, allowing the display control module to rotate forward, backward, left, and right, increasing operational convenience. The display control module is wirelessly connected to an LCD screen, which can be connected via Bluetooth, to transmit the images from the display control module to other displays for other doctors to learn and view. Both the first and second rotating shafts are rotatably connected to the handle via bearings, reducing the rotational resistance of the shafts and increasing their service life. There are three lenses, with the three cameras evenly distributed along the circumference of the transmission line. The circumferential arrangement of the three cameras allows for the acquisition of images from different angles, and even if one camera is blocked, images can still be acquired through the other cameras, improving intubation efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a three-dimensional laryngoscope according to the present invention;

[0021] Figure 2 This is a top view of a three-dimensional laryngoscope according to the present invention;

[0022] Figure 3 for Figure 2 A partial sectional view of AA;

[0023] Figure 4 This is a partial structural diagram of the laryngeal blade of a three-dimensional laryngoscope according to the present invention;

[0024] Figure 5 This is a front view of a three-dimensional laryngoscope according to the present invention;

[0025] Figure 6 for Figure 5 A partial sectional view of BB.

[0026] The names of the corresponding labels in the attached diagram are:

[0027] 1. Handle; 2. Laryngeal blade; 3. Connecting tube; 4. Transmission line; 5. Display control module; 6. Universal ball assembly; 7. First rotating shaft; 8. First synchronous pulley; 9. Second rotating shaft; 10. Second synchronous pulley; 11. Limiting groove; 12. Synchronous belt; 13. Screw; 14. Knob; 15. Threaded sleeve; 16. Anti-slip strip; 17. Limiting rod; 18. Camera. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0029] like Figures 1 to 6As shown, a three-dimensional laryngoscope includes a handle 1. The upper end of the handle 1 is rotatably connected to a display control module 5 via a ball joint assembly 6. The display control module 5 is wirelessly connected to an LCD screen. The lower end of the handle 1 is rotatably connected to a connecting tube 3 via a first rotating shaft 7. The lower end of the connecting tube 3 is fixedly connected to a laryngoscope blade 2. A transmission line 4 is threaded and connected inside the handle 1, connecting tube 3, and laryngoscope blade 2. The upper end of the transmission line 4 is connected to the display control module 5, and the lower end of the transmission line 4 is connected to three cameras 18, which are evenly distributed along the circumference of the transmission line 4. A first synchronous pulley 8 is fixedly connected to the first rotating shaft 7. A second synchronous pulley 10 is fixedly connected to the end of the handle 1 away from the connecting tube 3 via a second rotating shaft 9. The first synchronous pulley 8 and the second synchronous pulley 10 are connected by a synchronous belt 12. One end of the second rotating shaft 9 passes through the side wall of the handle 1 and connects to... A knob 14 is connected to the handle 1; the first rotating shaft 7 and the second rotating shaft 9 are both rotatably connected to the handle 1 via bearings; the handle 1 is provided with a limiting device for limiting the rotation of the second rotating shaft 9. In this embodiment, the limiting device includes a screw 13 that is threadedly connected to the handle 1. The axis of the screw 13 is perpendicular to the axis of the second rotating shaft 9. The second rotating shaft 9 is provided with a limiting groove 11 corresponding to the position of the screw 13. One end of the screw 13 passes through the side wall of the handle 1 and is provided with a limiting rod 17 that is adapted to the diameter of the limiting groove 11. The end of the limiting rod 17 away from the screw 13 is set as a cone. The inner wall of the limiting groove 11 and the outer wall of the limiting rod 17 are both sprayed with a wear-resistant layer; a knob 14 is fixedly connected to the end of the screw 13 located on the outside of the handle 1. The knob 14 is provided with several anti-slip strips 16 along the circumference; a threaded sleeve 15 is fixedly connected to the side wall of the handle 1. The threaded sleeve 15 is threadedly connected to the screw 13.

[0030] The specific implementation process is as follows:

[0031] When using this 3D laryngoscope, the medical staff uses their left hand to turn the knob 14 connected to the screw 13 to disengage the limiting rod 17 from the limiting groove 11, thereby releasing the limitation of the limiting rod 17 on the rotation of the second rotating shaft 9. With their right hand, they turn the knob 14 of the second rotating shaft 9 to adjust the angle between the laryngoscope blade 2 and the handle 1. After adjusting to the desired angle, they turn the knob 14 of the screw 13 in the opposite direction to insert the limiting rod 17 into the limiting groove 11, restricting the rotation of the second rotating shaft 9 and fixing the angle between the handle 1 and the laryngoscope blade 2. They then adjust the angle between the display control module 5 and the handle 1 to insert the laryngoscope blade 2 into the patient's throat for subsequent intubation. During the insertion of the laryngoscope blade 2, the above steps can be repeated to fine-tune the angle.

[0032] The handle 1 is used to connect the control display module and the laryngoscope. The camera 18 transmits the images of the glottis and pharyngeal cavity to the display control module 5 through the transmission line 4 so that medical staff can view the intubation. The connecting tube 3 is equipped with a drive component to adjust the angle between the laryngoscope blade 2 and the handle 1. After the angle is adjusted to a suitable position, a limiting device is used to limit the second rotating shaft 9 from continuing to rotate, thereby fixing the angle. The angle of this device can be adjusted at will, which can adapt to different patients, avoid the handle 1 being obstructed by the patient's chest, reduce the difficulty of laryngoscope insertion, and is easy to operate.

[0033] The threaded locking limit rod 17 ensures a stable connection. Furthermore, both knobs 14 are located on the handle 1 near the display control module 5, further enhancing ease of operation. The end of the limit rod 17 furthest from the screw 13 is conical, reducing resistance when inserting the limit rod 17 into the limit groove 11. Both the inner wall of the limit groove 11 and the outer wall of the limit rod 17 are coated with a wear-resistant layer to prevent mutual wear and reduce costs. A threaded sleeve 15 is fixedly connected to the side wall of the handle 1, and the threaded sleeve 15 is threadedly connected to the screw 13, increasing the contact area between the screw 13 and the handle 1, enhancing connection stability, and preventing the laryngeal blade 2 from loosening during use. A knob 14 is fixedly connected to the outer end of the screw 13 on the handle 1, and the knob 14 has several anti-slip strips 16 along its circumference to prevent slippage and increase ease of operation.

[0034] The display control module 5 is rotatably connected to the handle 1 via a ball joint assembly 6, allowing the display control module 5 to rotate forward, backward, left, and right, increasing ease of operation. The display control module 5 is wirelessly connected to an LCD screen, which can be connected via Bluetooth to transmit the images from the display control module 5 to other screens for other doctors to learn and view. The first rotating shaft 7 and the second rotating shaft 9 are both rotatably connected to the handle 1 via bearings, reducing the rotational resistance of the shafts and increasing their service life. Three cameras 18 are arranged circumferentially along the transmission line 4 to capture images from different angles. Even if one camera 18 is blocked, images can still be captured by the other cameras 18, improving intubation efficiency.

[0035] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A three-dimensional laryngoscope, characterized in that, The device includes a handle, one end of which is connected to a display control module. The other end of the handle is rotatably connected to a connecting tube via a first rotating shaft. The other end of the connecting tube is fixedly connected to a laryngoscope blade. A transmission line passes through and connects the handle, the connecting tube, and the laryngoscope blade. One end of the transmission line is connected to the display control module, and the other end of the transmission line is connected to a camera. A first synchronous wheel is fixedly connected to the first rotating shaft. A second synchronous wheel is fixedly connected to the end of the handle away from the connecting tube via a second rotating shaft. The first and second synchronous wheels are connected by a synchronous belt. A knob is connected to one end of the second rotating shaft through the side wall of the handle. The handle is provided with a limiting device for restricting the rotation of the second rotating shaft.

2. A three-dimensional laryngoscope according to claim 1, characterized in that: The limiting device includes a screw connected to the handle by a thread, the axis of the screw being perpendicular to the axis of the second rotating shaft, the second rotating shaft having a limiting groove corresponding to the position of the screw, and one end of the screw penetrating the side wall of the handle and having a limiting rod adapted to the diameter of the limiting groove.

3. A three-dimensional laryngoscope according to claim 2, characterized in that: The end of the limiting rod away from the screw is set in a conical shape.

4. A three-dimensional laryngoscope according to claim 2, characterized in that: A threaded sleeve is fixedly connected to the side wall of the handle, and the threaded sleeve is connected to the screw via a thread.

5. A three-dimensional laryngoscope according to claim 2, characterized in that: A knob is fixedly connected to one end of the screw located on the outside of the handle, and the knob is provided with several anti-slip strips along the circumference.

6. A three-dimensional laryngoscope according to claim 2, characterized in that: The inner wall of the limiting groove and the outer wall of the limiting rod are both coated with a wear-resistant layer.

7. A three-dimensional laryngoscope according to claim 1, characterized in that: The display control module is connected to the handle via a ball joint assembly.

8. A three-dimensional laryngoscope according to claim 1, characterized in that: The display control module is wirelessly connected to an LCD screen.

9. A three-dimensional laryngoscope according to claim 1, characterized in that: Both the first and second rotating shafts are rotatably connected to the handle via bearings.

10. A three-dimensional laryngoscope according to claim 1, characterized in that: The number of cameras is three, and the three cameras are evenly distributed along the circumference of the transmission line.

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