Tongue lifting device and visual laryngoscope
By introducing a rotating joint and angle adjustment mechanism into the tongue lifter of the video laryngoscope, the problem that existing tongue lifters cannot adapt to different patients' throat passages has been solved, realizing flexible adjustment of the laryngoscope angle and simplifying operation, thus improving the convenience and comfort of use.
Patent Information
- Application Number
- CN202423092173.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-13
AI Technical Summary
The existing tongue lifter of the video laryngoscope is fixed to the handle, which cannot adapt to the different curvatures of the throat passage of different patients, making it troublesome and physically demanding for doctors to operate.
A tongue lifter including a handle, a rotating joint, and an angle adjustment mechanism is designed. By setting a first joint and a second joint, and setting an angle adjustment mechanism in between, the laryngoscope angle can be adjusted and locked using a locking member and a locking tooth. The operating member and the locking member are set coaxially, allowing the laryngoscope angle to be adjusted by one hand.
It enables flexible adjustment of the laryngoscope angle, simplifies the operation process, reduces the physical exertion of doctors, and improves the convenience and comfort of use.
Smart Images
Figure CN223914116U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a medical device, and more particularly to a tongue lifter and a video laryngoscope. Background Technology
[0002] In medical examinations observing the human glottis, a video laryngoscope is typically used for imaging. Because the tongue obstructs the view, video laryngoscopes usually have a tongue lifter, which the doctor uses to pry open the tongue before taking the image. However, the tongue lifter on current video laryngoscopes is generally fixed to the handle. Since the tongue lifter is fixed relative to the handle, and different patients have different body sizes and throat curvatures, doctors often need to adjust their hand gestures or body postures to operate the tongue lifter to accommodate different patients. This makes the procedure very cumbersome, physically demanding, and inconvenient for doctors. Utility Model Content
[0003] The purpose of this invention is to provide a tongue lifter that is simple to operate and easy to use.
[0004] Another objective of this invention is to provide a video laryngoscope that is simple to operate and easy to use.
[0005] To achieve the above objectives, the tongue lifter provided by this utility model includes a handle, a rotating joint, an angle adjustment mechanism, and a laryngoscope. The rotating joint includes a first joint and a second joint pivotally connected to the first joint. The handle is connected to the first joint, and the laryngoscope is connected to the second joint. The angle adjustment mechanism is disposed between the first joint and the second joint to lock or unlock the second joint relative to the first joint, thereby making the angle of the laryngoscope relative to the handle adjustable. The angle adjustment mechanism includes an operating component and a locking component. The operating component and the locking component are coaxially disposed with the first joint and the second joint. The first joint has multiple engaging positions circumferentially arranged around its central axis. The locking component is disposed between the first joint and the second joint and has engaging teeth on its outer periphery. The operating component is slidably placed on one of the first joint and the second joint along the pivot axis of the first joint to drive the locking component closer to or away from the first joint, causing the engaging teeth to engage or disengage from the engaging positions.
[0006] Compared with existing technologies, this invention achieves locking or unlocking of the first and second joints by setting a first joint and a second joint, and an angle adjustment mechanism between the first and second joints, with multiple engaging positions on the first joint and a locking member set on the second joint. The locking member connects or separates with any engaging position on the first joint via its own engaging teeth. Furthermore, since the operating member and the locking member are coaxially arranged with the first and second joints, and the operating member slides along the pivot axis of the first joint, operation only requires one hand to hold the handle and the other to hold the laryngoscope, while simultaneously pressing the operating member with a finger to unlock and adjust the angle of the laryngoscope, making operation very simple. Moreover, because the laryngoscope angle is adjustable, doctors can maintain their own hand gestures or body posture when facing different patients, making it very comfortable and convenient to use.
[0007] Preferably, the angle adjustment mechanism further includes a first elastic reset member, which is disposed between the second joint and the locking member, and provides an elastic force to bring the locking member closer to the first joint. By providing the first elastic reset member, the first and second joints can automatically return to the locked state without manual operation, effectively improving ease of use.
[0008] Specifically, the second joint is provided with a first receiving hole, which accommodates the locking member; the inner wall of the first receiving hole is provided with a receiving groove corresponding to the engaging teeth along its central axis, and the receiving groove extends to the end face of the second joint near the first joint; the engaging teeth are disposed in the receiving groove. This allows the locking member to be circumferentially fixed but axially movable with the second joint, thereby enabling unlocking, angle adjustment, or locking with the first joint.
[0009] Preferably, the laryngoscope is detachably covered with a transparent protective sleeve; the protective sleeve is a disposable item, and a new protective sleeve can be replaced after each use, making it convenient, quick, clean and hygienic to use.
[0010] Specifically, the second joint is provided with a second receiving hole, which accommodates the first elastic reset member. This prevents the first elastic reset member from shifting and ensures the stability of the locking member's operation.
[0011] Preferably, the operating member is disposed on the side of the first joint opposite to the locking member, and the operating member extends a push post that freely passes through the first joint and extends to the other side to abut against the locking member, so that pressing the operating member pushes the locking member away from the first joint. By being disposed on the push post, the operating member can be guided and the locking member can be pushed to achieve the purpose of unlocking. The structure is simple, making the overall joint structure more compact and reasonable.
[0012] Preferably, the angle adjustment mechanism further includes a second elastic reset member disposed between the first joint and the operating member to provide an elastic force that moves the operating member away from the locking member. By providing the second elastic reset member, the operating member can be automatically reset, improving operational convenience.
[0013] A video laryngoscope includes a display, a connector, a camera, and a tongue lifter. The display is detachably connected to the handle of the tongue lifter via the connector, and the camera is disposed at the front end of the laryngoscope.
[0014] Preferably, the video laryngoscope further includes a connecting bracket, which has a pivoting mechanism. The pivoting mechanism includes a first pivot portion and a second pivot portion pivotally connected to the first pivot portion. The first pivot portion is connected to one end of the connector, and the second pivot portion is connected to the display. This pivoting mechanism allows the angle of the display relative to the tongue lifter to be adjustable, thereby facilitating observation by the doctor and improving the convenience and comfort of operation.
[0015] Preferably, the video laryngoscope further includes a connecting bracket with a battery compartment. One side of the battery compartment has an opening through which the battery can be installed into or removed from the battery compartment. By providing a separate battery compartment on the connecting bracket, the battery in the battery compartment is replaceable, eliminating the need for a power cord and effectively improving operational convenience. Attached Figure Description
[0016] Figure 1 This is a structural diagram of the visual laryngoscope of this utility model.
[0017] Figure 2 This is an exploded view of the video laryngoscope of this utility model.
[0018] Figure 3 This is a structural diagram of the tongue lifter of the visual laryngoscope of this utility model.
[0019] Figure 4 This is an exploded view of the tongue lifter of the visual laryngoscope of this utility model.
[0020] Figure 5 This is an axial cross-sectional view of the tongue lifter of the visual laryngoscope of this utility model.
[0021] Figure 6 This is an internal structural diagram of the first joint, the second joint, and the locking component of the tongue lifter of the visual laryngoscope of this utility model.
[0022] Figure 7 This is a structural diagram of the display and connecting bracket of the video laryngoscope of this utility model.
[0023] Figure 8 This is a diagram showing the position of the locking element of the laryngoscope relative to the handle of the laryngoscope in this utility model's visual laryngoscope when the laryngoscope is at 120 degrees.
[0024] Figure 9 This is a diagram showing the position of the locking element of the tongue lifter of the visual laryngoscope of this utility model when the laryngoscope is at a 90-degree angle to the handle.
[0025] Figure 10 This is a diagram showing the position of the locking element of the laryngoscope relative to the handle when the laryngoscope of the present invention is at 0 degrees. Detailed Implementation
[0026] To explain in detail the technical content, structural features, and effects achieved by this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0027] like Figures 1 to 4 As shown, the video laryngoscope 100 disclosed in this utility model includes a tongue lifter 1, a display 2, a connector 3, and a camera 4. The display 2 is connected to the handle 11 of the tongue lifter 1. The tongue lifter 1 includes a handle 11, a rotating joint 12, an angle adjustment mechanism 13, and a laryngoscope 14. The camera 4 is disposed at the front end of the laryngoscope 14; the front end of the laryngoscope 14 is also provided with a light-emitting element to facilitate the camera 4 to take pictures. The rotating joint 12 includes a first joint 121 and a second joint 122 pivotally connected to the first joint 121. The handle 11 is connected to the first joint 121, and the laryngoscope 14 is connected to the second joint 122. The laryngoscope 14 has an arc-shaped structure to match the shape of the human throat. The laryngoscope 14 is covered with a transparent protective sleeve 15. The protective sleeve 15 has a buckle 151 at one end near the handle 11. The outer side of the second joint 122 has a locking part 123 that engages with the buckle 151. This allows the protective sleeve 15 to be detachably connected to the laryngoscope 14, thus protecting the laryngoscope 14 when not in use and protecting the throat when in use. The protective sleeve 15 is a disposable item and can be replaced with a new one after each use. It is convenient, quick, clean and hygienic to use.
[0028] Please see Figures 3 to 6The angle adjustment mechanism 13 is disposed between the first joint 121 and the second joint 122 to lock or unlock the second joint 122 relative to the first joint 121, so that the angle of the laryngoscope 14 relative to the handle 11 is adjustable. The angle adjustment mechanism 13 includes an operating member 131 and a locking member 132. The operating member 131 and the locking member 132 are coaxially disposed with the first joint 121 and the second joint 122. The inner wall of the first joint 121 is provided with a plurality of engaging positions 121a around the central axis. The engaging positions 121a extend to the end face of the first joint 121 near the second joint 122. The locking member 132 is disposed between the first joint 121 and the second joint 122, and is provided with engaging teeth 132a on its outer periphery. The engaging teeth 132a can be engaged in any engaging position 121a. In this embodiment, there are three locking positions 121a, including a first locking position 121a1, a second locking position 121a2, and a third locking position 121a3. The angle between the first locking position 121a1 and the second locking position 121a2 is 30 degrees, the angle between the second locking position 121a2 and the third locking position 121a3 is 90 degrees, and the angle between the first locking position 121a1 and the third locking position 121a3 is 120 degrees. The locking teeth 132a can be selectively disposed in any locking position 121a, so that the angle of the second joint 122 relative to the first joint 121 (or the angle of the laryngoscope 14 relative to the handle 11) can be adjusted to 90 degrees, 120 degrees, or 0 degrees. When it is 0 degrees, it is in a folded state. More specifically, the locking member 132 has an arcuate groove 132b around its center, the central angle of the arcuate groove 132b being 120 degrees. A limiting block 121b protrudes outward from the first joint 121, the limiting block 121b extending into the arcuate groove 132b to limit the maximum rotation angle of the locking member 132. The protruding length of the limiting block 121b is greater than the depth of each engaging position, so that the locking member 132 can still be limited even when it leaves the first joint 121, thereby achieving the purpose of limiting the laryngoscope 14. Furthermore, the first joint 121 can also be configured with a first engaging position 121a1, a second engaging position 121a2, and a third engaging position 121a3 forming a group, thus providing three groups of engaging positions on the first joint 121. The first engaging position in each group coincides with the third engaging position of the preceding group. Correspondingly, three engaging teeth with an included angle of 120 degrees to each other are provided on the locking member 132, allowing the three engaging teeth to engage with the three groups of engaging positions respectively, resulting in a more secure lock. Specifically, the second joint 122 is provided with a first receiving hole 122a, which accommodates the locking member 132.The operating member 131 is slidably positioned on one of the first joint 121 and the second joint 122 along the pivot axis of the first joint 121, so as to drive the locking member 132 to move closer to or away from the first joint 121, causing the engaging tooth 132a to engage or disengage from the engaging position 121a. In this embodiment, the operating member 131 is disposed on the first joint 121. The inner wall of the first receiving hole 122a is provided with a receiving groove 122b corresponding to the engaging tooth 132a along its central axis, and the receiving groove 122b extends to the end face of the second joint 122 near the first joint 121. The engaging tooth 132a is disposed in the receiving groove 122b. This allows the locking member 132 to be circumferentially fixed but axially movable with the second joint 122, thereby enabling unlocking, angle adjustment, or locking with the first joint 121.
[0029] Please see again Figures 4 to 6 The angle adjustment mechanism 13 further includes a first elastic reset member 133. A second receiving hole 122c is provided within the second joint 122, and the second receiving hole 122c accommodates the first elastic reset member 133. This prevents the first elastic reset member 133 from shifting, ensuring the stability of the locking member 132. The second receiving hole 122c is located at the end of the first receiving hole 122a away from the first joint 121, allowing the first receiving hole 122a and the second receiving hole 122c to communicate within the second joint 122. The first elastic reset member 133 is disposed between the second joint 122 and the locking member 132 and is located within the second receiving hole 122c, providing an elastic force to bring the locking member 132 closer to the first joint 121. By providing the first elastic reset member 133, the first joint 121 and the second joint 122 can automatically return to the locked state without manual operation, effectively improving ease of use.
[0030] Please see Figure 4 and Figure 5The operating element 131 is disposed on the side of the first joint 121 opposite to the locking element 132, and the operating element 131 extends into a push post 1311. Multiple push posts 1311 are arranged around the central axis of the operating element 131. The push post 1311 freely passes through the first joint 121 and extends to the other side, abutting against the locking element 132, so that pressing the operating element 131 pushes the locking element 132 away from the first joint 121. By using the push post 1311, the operating element 131 can be guided, and the locking element 132 can be pushed to achieve the purpose of unlocking. The structure is simple, making the overall joint structure more compact and reasonable. The angle adjustment mechanism 13 further includes a second elastic reset member 134. The first joint 121 has a second inner hole 122c opening towards the operating member 131. The second elastic reset member 134 is disposed between the first joint 121 and the operating member 131 and located within the second inner hole 122c, providing an elastic force to move the operating member 131 away from the locking member 132. By providing the second elastic reset member 134, the operating member 131 can automatically reset, improving operational convenience.
[0031] Please see Figure 1 , Figure 2 and Figure 7 The display 2 is detachably connected to the handle 11 of the tongue lifter 1 via the connector 3. The connector 3 is a Remer connector 3, which can both connect the structure of the display 2 to the handle 11 and electrically connect the conductive end of the display 2 to the conductive end of the camera 4, making it convenient and practical.
[0032] Please see again Figure 1 , Figure 2 and Figure 7 The video laryngoscope 100 also includes a connecting bracket 5, which has a pivoting mechanism 6. The pivoting mechanism 6 includes a first pivoting part 61 and a second pivoting part 62 pivotally connected to the first pivoting part 61. The first pivoting part 61 is connected to one end of the connector 3, and the second pivoting part 62 is connected to the display 2. The pivoting mechanism 6 allows the angle of the display 2 relative to the tongue lifter 1 to be adjustable, thus facilitating observation by the doctor and improving the convenience and comfort of operation. Furthermore, the connecting bracket 5 has a battery compartment 51, located on the first pivoting part 61, with an opening and a cover on one side. The battery can be installed into or removed from the battery compartment 51 through the opening and cover. By separately providing the battery compartment 51 on the connecting bracket 5, the battery in the battery compartment 51 is replaceable, eliminating the need for a power cord and effectively improving operational convenience.
[0033] Based on the above and in conjunction with the accompanying drawings, the working principle of the tongue lifter 1 of the video laryngoscope 100 of this utility model will be described in detail below:
[0034] When it is necessary to adjust the angle of the laryngoscope 14 relative to the handle 11, simply press the operating member 131, causing it to move inward toward the first joint 121. At this time, the operating member 131 compresses the second elastic reset member 134, and the push post 1311 pushes the locking member 132 away from the first joint 121 and into the second joint 122. When the engaging tooth 132a disengages from the engaging position 121a, the second joint 122 unlocks relative to the first joint 121. Then, rotating the laryngoscope 14 adjusts the angle. After the angle adjustment is complete, release the operating member 131. The first elastic reset member 133, with its elastic force, brings the locking member 132 closer to the first joint 121 again, causing the engaging tooth 132a to engage with another engaging position 121a. Simultaneously, the second elastic reset member 134 pushes the operating member 131 into position. At this point, the laryngoscope 14 is at another angle relative to the handle 11. More specifically, as... Figures 8 to 10 As shown, when the laryngoscope 14 is at a 120-degree angle to the handle 11, the engaging tooth 132a engages in the first engaging position 121a1. When the laryngoscope 14 is at a 90-degree angle to the handle 11, the engaging tooth 132a engages in the second engaging position 121a2. When the laryngoscope 14 is at a 0-degree angle to the handle 11 (i.e., in the folded state), the engaging tooth 132a engages in the third engaging position 121a3.
[0035] Compared with the prior art, this utility model sets up a first joint 121 and a second joint 122, and sets an angle adjustment mechanism 13 between the first joint 121 and the second joint 122. It also sets up multiple engagement positions 121a on the first joint 121, and uses a locking member 132 set on the second joint 122. At the same time, it connects or separates with any engagement position 121a of the first joint 121 through its own engagement teeth 132a, thereby achieving the purpose of locking or unlocking the first joint 121 and the second joint 122. Furthermore, since the operating member 131 and the locking member 132 are coaxially set with the first joint 121 and the second joint 122, and the operating member 131 slides along the pivot axis of the first joint 121, during operation, only one hand needs to hold the handle 11 and the other hand needs to hold the laryngoscope 14. At the same time, the angle of the laryngoscope 14 can be unlocked and adjusted by pressing the operating member 131 with the finger, which is very simple to operate. Moreover, since the laryngoscope 14 is adjustable, doctors can maintain their own hand gestures or body postures to operate the tongue lifter 1 when facing different patients, making it very comfortable and convenient to use.
[0036] The structure of the display 2 and the Remer connector involved in the video laryngoscope 100 of this utility model is well known to those skilled in the art, and will not be described in detail here.
[0037] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.
Claims
1. A tab lifter characterized by: The laryngoscope comprises a handle, a rotating joint, an angle adjusting mechanism and a laryngoscope. The rotating joint comprises a first joint and a second joint pivotally connected with the first joint. The handle is connected with the first joint. The laryngoscope is connected with the second joint. The angle adjusting mechanism is arranged between the first joint and the second joint to lock or release the second joint relative to the first joint, so that the angle of the laryngoscope relative to the handle can be adjusted. The angle adjusting mechanism comprises an operating member and a locking member. The operating member and the locking member are coaxially arranged with the first joint and the second joint. A plurality of clamping positions are circumferentially arranged around a central axis in the first joint. The locking member is arranged between the first joint and the second joint, and an outer periphery of the locking member is provided with clamping teeth. The operating member is slidingly arranged in one of the first joint and the second joint along the pivot axis of the first joint to drive the locking member to approach or move away from the first joint, so that the clamping teeth are clamped or released from the clamping positions.
2. The tongue lifter of claim 1, wherein: The angle adjusting mechanism further comprises a first elastic return member arranged between the second joint and the locking member and providing an elastic force for the locking member to approach the first joint.
3. The tongue lifter of claim 2, wherein: A first accommodating hole is arranged in the second joint, and the first accommodating hole accommodates the locking member. An inner wall of the first accommodating hole is provided with an accommodating groove corresponding to the clamping teeth along the central axis direction of the first accommodating hole. The accommodating groove extends to an end face of the second joint close to the first joint. The clamping teeth are arranged in the accommodating groove, so that the locking member is axially movable and circumferentially fixed.
4. The tongue lifter of claim 1, wherein: A transparent protective sleeve is detachably sleeved on the laryngoscope.
5. The tongue lifter of claim 2, wherein: A second accommodating hole is arranged in the second joint, and the second accommodating hole accommodates the first elastic return member.
6. The tongue lifter of claim 1, wherein: The operating member is arranged on a side of the first joint away from the locking member. The operating member extends a pushing column. The pushing column freely passes through the first joint and extends to the other side to abut against the locking member, so that the locking member is pushed away from the first joint when the operating member is pressed.
7. The tongue lifter of claim 1, wherein: The angle adjusting mechanism further comprises a second elastic return member arranged between the first joint and the operating member to provide an elastic force for the operating member to move away from the locking member.
8. A video laryngoscope comprising: The visual laryngoscope further comprises a display, a connector, a camera and the tongue lifter according to any one of claims 1 to 7. The display is detachably connected to the handle of the tongue lifter through the connector. The camera is arranged at the front end of the laryngoscope.
9. The video laryngoscope of claim 8, wherein: The visual laryngoscope further comprises a connecting support provided with a pivoting mechanism. The pivoting mechanism comprises a first pivoting part and a second pivoting part pivotally connected with the first pivoting part. The first pivoting part is connected with one end of the connector. The second pivoting part is connected with the display.
10. The video laryngoscope of claim 8, wherein: The visual laryngoscope further comprises a connecting support provided with a battery compartment. One side of the battery compartment is provided with an opening. The battery can be mounted into or detached from the battery compartment through the opening.