Tongue lifting device and visual laryngoscope

Abstract

The tongue lifting device comprises a handle, a rotating joint, an angle adjusting mechanism and the laryngoscope, the rotating joint comprises a first joint and a second joint, the handle is connected to the first joint, the laryngoscope is connected to the second joint, the angle adjusting mechanism is arranged between the first joint and the second joint, and the angle adjusting mechanism is arranged between the first joint and the second joint. The second joint is locked or unlocked relative to the first joint; the angle adjusting mechanism comprises an operating piece and a locking piece, the operating piece, the locking piece, the first joint and the second joint are coaxially arranged, and a plurality of clamping positions are arranged in the first joint in the circumferential direction around the center shaft; the locking piece is arranged between the first joint and the second joint, and clamping teeth are arranged on the periphery of the locking piece. The operation piece is arranged on one of the first joint and the second joint in a sliding mode along a pivot shaft of the first joint. The device has the advantages of being easy to operate and convenient to use.

Description

Technical Field

[0001] The invention relates to a medical device, in particular to a tongue lifter and a visual laryngoscope. Background Art

[0002] In medical examinations for observing the human glottis, a video laryngoscope is usually used for filming. Due to the tongue blocking the view, the video laryngoscope is usually equipped with a tongue lifter, and the doctor uses the tongue lifter to pull the tongue apart before filming. The tongue lifter of the existing video laryngoscope is generally fixed to the handle. Since the tongue lifter is fixed relative to the handle, different patients have different body sizes and different throat passage arcs. Therefore, during the examination, the doctor often needs to adjust the hand gesture or body posture to cooperate with the tongue lifter to operate in order to adapt to different patients. This makes it very troublesome for the doctor to operate, consumes a lot of physical strength, and is extremely inconvenient to use. Summary of the invention

[0003] The purpose of the present invention is to provide a tongue lifter which is simple to operate and convenient to use.

[0004] Another object of the present invention is to provide a video laryngoscope that is simple to operate and easy to use.

[0005] In order to achieve the above-mentioned purpose, the tongue lifter provided by the present invention 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, the laryngoscope is connected to the second joint, and the angle adjustment 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 is adjustable; the angle adjustment mechanism includes 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, and a plurality of engaging positions are circumferentially arranged around the central axis in the first joint; the locking member is arranged between the first joint and the second joint, and engaging teeth are arranged on the outer periphery; the operating member 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 member to approach or move away from the first joint, so that the engaging teeth engage or disengage from the engaging position.

[0006] Compared with the prior art, the present invention sets a first joint and a second joint, sets an angle adjustment mechanism between the first joint and the second joint, sets a plurality of engaging positions on the first joint, uses a locking member set on the second joint, and connects or separates with any engaging position of the first joint through its own engaging teeth, thereby achieving the purpose of locking or releasing the first joint and the second joint; and, since the operating member and the locking member are coaxially arranged with the first joint and the second joint, the operating member slides along the pivot axis of the first joint, therefore, during operation, only one hand is needed to hold the handle, and the other hand is needed to hold the laryngoscope and press the operating member with fingers to unlock and adjust the angle of the laryngoscope, which is very simple to operate. Moreover, since the angle of the laryngoscope is adjustable, the doctor can maintain his or her own gestures or body postures to operate the tongue lifter when facing different patients, which is 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 for bringing the locking member closer to the first joint. By providing the first elastic reset member, the first joint and the second joint can be automatically restored to a locked state without manual operation, thereby effectively improving the convenience of use.

[0008] Specifically, a first accommodating hole is provided in the second joint, and the locking member is accommodated in the first accommodating hole; an accommodating groove corresponding to the engaging tooth is provided on the inner wall of the first accommodating hole along its central axis, and the accommodating groove extends to the end surface of the second joint close to the first joint; the engaging tooth is arranged in the accommodating groove. In this way, the locking member and the second joint are fixed in the circumferential direction but movable in the axial direction, and can be released, angle-adjusted or locked with the first joint.

[0009] Preferably, the laryngoscope is detachably covered with a transparent protective cover; the protective cover is a disposable appliance and can be replaced with a new one after one use, so it is convenient, fast, clean and hygienic to use.

[0010] Specifically, a second accommodating hole is provided in the second joint, and the first elastic reset member is accommodated in the second accommodating hole, so as to prevent the first elastic reset member from shifting and ensure the working stability of the locking member.

[0011] Preferably, the operating member is arranged on the side of the first joint facing away from the locking member, and the operating member extends a push column, which freely passes through the first joint and extends to the other side and abuts against the locking member, so as to push the locking member away from the first joint when the operating member is pressed. By being arranged on the push column, the operating member can be guided and the locking member can be pushed to achieve the purpose of unlocking, and the structure is simple, making the structural arrangement of the entire joint more compact and reasonable.

[0012] Preferably, the angle adjustment mechanism further comprises a second elastic reset member, which is arranged between the first joint and the operating member to provide an elastic force to keep the operating member away from the locking member. By providing the second elastic reset member, the operating member can be automatically reset, thereby improving the convenience of operation.

[0013] A visual laryngoscope comprises a display, a connector, a camera and a tongue lifter. The display is detachably connected to the handle of the tongue lifter through the connector, and the camera is arranged at the front end of the laryngoscope.

[0014] Preferably, the video laryngoscope further comprises a connecting bracket, the connecting bracket is provided with a pivot mechanism, the pivot mechanism comprises a first pivot part and a second pivot part pivotally connected to the first pivot part, the first pivot part is connected to one end of the connector, and the second pivot part is connected to the display. The pivot mechanism is provided so that the angle of the display relative to the tongue lifter can be adjusted, thereby facilitating observation by the doctor and improving the convenience and comfort of operation.

[0015] Preferably, the video laryngoscope further comprises a connecting bracket, the connecting bracket is provided with a battery compartment, one side of the battery compartment is provided with an opening, through which the battery can be installed into or removed from the battery compartment. By separately providing a battery compartment on the connecting bracket, the battery in the battery compartment can be replaced, thereby eliminating the need to provide a power cord, and effectively improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of a visual laryngoscope of the present invention.

[0017] Figure 2 It is an exploded view of the visual laryngoscope of the present invention.

[0018] Figure 3 It is a structural diagram of the tongue lifter of the visual laryngoscope of the present invention.

[0019] Figure 4 It is an exploded view of the tongue lifter of the visual laryngoscope of the present invention.

[0020] Figure 5The utility model is an axial cross-sectional view of the tongue lifter of the visual laryngoscope of the present invention.

[0021] Figure 6 It is an internal structural diagram of the first joint, the second joint and the locking member of the tongue lifter of the visual laryngoscope of the present invention.

[0022] Figure 7 It is a structural diagram of the display of the visual laryngoscope of the present invention and its connecting bracket.

[0023] Figure 8 The present invention is a diagram showing the position state of the locking member of the tongue lifter of the video laryngoscope when the laryngoscope is at 120 degrees relative to the handle.

[0024] Fig. 9 The present invention is a diagram showing the position state of the locking member of the tongue lifter of the video laryngoscope when the laryngoscope is at 90 degrees relative to the handle.

[0025] Fig.10 The present invention is a diagram showing the position state of the locking member of the tongue lifter of the video laryngoscope when the laryngoscope is at 0 degrees relative to the handle. DETAILED DESCRIPTION

[0026] In order to explain the technical content, structural features and achieved effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.

[0027] like Figures 1 to 4 As shown, the visual laryngoscope 100 disclosed in the present invention includes a tongue lifter 1, a display 2, a connector 3 and a camera 4, wherein 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, wherein the camera 4 is arranged at the front end of the laryngoscope 14; a light source is also arranged at the front end of the laryngoscope 14 to facilitate the camera 4 to shoot. 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, the laryngoscope 14 is connected to the second joint 122, and the laryngoscope 14 is in an arc-shaped structure to match the shape of the human throat. The laryngoscope 14 is provided with a transparent protective cover 15, and a buckle 151 is provided at one end of the protective cover 15 close to the handle 11, and a snap-fitting portion 123 that is snap-fitted with the buckle 151 is provided on the outer side of the second joint 122. In this way, the protective cover 15 can be detachably connected to the laryngoscope 14, so that it can be used to protect the laryngoscope 14 when not in use, and can protect the human throat when in use. The protective cover 15 is a disposable device and can be replaced with a new protective cover 15 after one use. It is convenient, quick, clean and hygienic to use.

[0028] See also Figures 3 to 6The angle adjustment mechanism 13 is arranged 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 arranged with the first joint 121 and the second joint 122, and the side wall of the inner cavity of the first joint 121 is circumferentially provided with a plurality of engaging positions 121a around the central axis; the engaging position 121a extends to the end surface of one end of the first joint 121 close to the second joint 122; the locking member 132 is arranged between the first joint 121 and the second joint 122, and is provided with engaging teeth 132a on the outer periphery, and the engaging teeth 132a can be engaged in any engaging position 121a. In this embodiment, there are three engaging positions 121a, including a first engaging position 121a1, a second engaging position 121a2 and a third engaging position 121a3, wherein the angle between the first engaging position 121a1 and the second engaging position 121a2 is 30 degrees, the angle between the second engaging position 121a2 and the third engaging position 121a3 is 90 degrees, and the angle between the first engaging position 121a1 and the third engaging position 121a3 is 120 degrees. The engaging teeth 132a can be selectively arranged in any engaging 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, and when it is 0 degrees, it is in a folded state. More specifically, the locking member 132 is provided with an arc groove 132b around its center, the arc groove 132b has a central angle of 120 degrees, and a stopper 121b is provided protruding outward from the first joint 121, and the stopper 121b extends into the arc groove 132b to limit the maximum rotation angle of the locking member 132. The extension length of the stopper 121b is greater than the depth of each engaging position, so that the locking member 132 can still be limited when the locking member 132 leaves the first joint 121, thereby achieving the purpose of limiting the position of the laryngoscope 14. In addition, the first joint 121 can also be composed of the first engaging position 121a1, the second engaging position 121a2 and the third engaging position 121a3 to form a group, and three groups of engaging positions are set on the first joint 121, and the first engaging position on each group of engaging positions coincides with the third engaging position of the previous group, and three engaging teeth with angles of 120 degrees to each other are correspondingly set on the locking member 132, so that the three engaging teeth can be engaged with the three groups of engaging positions respectively, so that the locking is more secure. Specifically, a first accommodating hole 122a is provided in the second joint 122, and the first accommodating hole 122a accommodates the locking member 132.The operating member 131 is slidably disposed at one of the first joint 121 and the second joint 122 along the pivot axis of the first joint 121 to drive the locking member 132 to approach or move away from the first joint 121, so that the engaging tooth 132a engages or disengages from the engaging position 121a. The operating member 131 of this embodiment is disposed at the first joint 121. An accommodating groove 122b corresponding to the engaging tooth 132a is provided on the inner wall of the first accommodating hole 122a along its central axis direction, and the accommodating groove 122b extends to the end surface of the second joint 122 close to the first joint 121. The engaging tooth 132a is disposed in the accommodating groove 122b. In this way, the locking member 132 and the second joint 122 are circumferentially fixed but axially movable, and can be released, angle-adjusted or locked with the first joint 121.

[0029] Please see again Figures 4 to 6 , the angle adjustment mechanism 13 also includes a first elastic reset member 133, and a second accommodating hole 122c is provided in the second joint 122, and the second accommodating hole 122c accommodates the first elastic reset member 133. In this way, the first elastic reset member 133 can be prevented from shifting, and the stability of the locking member 132 can be ensured. The second accommodating hole 122c is located at one end of the first accommodating hole 122a away from the first joint 121, so that the first accommodating hole 122a and the second accommodating hole 122c are connected in the second joint 122. The first elastic reset member 133 is arranged between the second joint 122 and the locking member 132 and is located in the second accommodating hole 122c, and provides an elastic force to make the locking member 132 close to the first joint 121. By providing the first elastic reset member 133, the first joint 121 and the second joint 122 can be automatically restored to the locked state without manual operation, which effectively improves the convenience of use.

[0030] See also Figure 4 and Figure 5The operating member 131 is arranged on the side of the first joint 121 facing away from the locking member 132, and the operating member 131 extends a push column 1311, and the number of the push columns 1311 is multiple, and they are arranged around the central axis of the operating member 131. The push column 1311 freely passes through the first joint 121 and extends to the other side and abuts against the locking member 132, so that the locking member 132 is pushed away from the first joint 121 when the operating member 131 is pressed. By setting the push column 1311, the operating member 131 can be guided and the locking member 132 can be pushed to achieve the purpose of unlocking. The structure is simple, making the structural arrangement of the entire joint more compact and reasonable. The angle adjustment mechanism 13 further includes a second elastic reset member 134. A second inner hole 122c opening toward the operating member 131 is provided in the first joint 121. The second elastic reset member 134 is disposed between the first joint 121 and the operating member 131 and is located in the second inner hole 122c to provide an elastic force to keep the operating member 131 away from the locking member 132. By providing the second elastic reset member 134, the operating member 131 can be automatically reset, thereby improving the convenience of operation.

[0031] See also Figure 1 , Figure 2 and Figure 7 The display 2 is detachably connected to the handle 11 of the tongue lifter 1 through the connector 3. The connector 3 is a Leimer connector 3, which can 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, which is convenient and practical.

[0032] Please see again Figure 1 , Figure 2 and Figure 7 The video laryngoscope 100 also includes a connecting bracket 5, and the connecting bracket 5 is provided with a pivot mechanism 6, and the pivot mechanism 6 includes a first pivot part 61 and a second pivot part 62 pivotally connected to the first pivot part 61, the first pivot part 61 is connected to one end of the connector 3, and the second pivot part 62 is connected to the display 2. The setting of the pivot mechanism 6 can make the angle of the display 2 relative to the tongue lifter 1 adjustable, so as to facilitate the doctor's observation and improve the convenience and comfort of operation. In addition, the connecting bracket 5 is provided with a battery compartment 51, and the battery compartment 51 is located on the first pivot part 61 and has an opening and a cover on one side, and the battery can be installed in the battery compartment 51 or removed from the battery compartment 51 through the opening and the cover. By separately providing the battery compartment 51 on the connecting bracket 5, the battery in the battery compartment 51 can be replaced, so there is no need to set a power cord, which effectively improves the convenience of operation.

[0033] In summary and in combination with the above drawings, the working principle of the tongue lifter 1 of the video laryngoscope 100 of the present invention is described in detail below, as follows:

[0034] When it is necessary to adjust the angle of the laryngoscope 14 relative to the handle 11, it is only necessary to press the operating member 131 so that the operating member 131 moves toward the inside of the first joint 121. At this time, the operating member 131 compresses the second elastic reset member 134, and the push column 1311 pushes the locking member 132 to leave the first joint 121 and move toward the second joint 122. When the engaging tooth 132a leaves the engaging position 121a, the second joint 122 can be unlocked relative to the first joint 121. At this time, the angle can be adjusted by rotating the laryngoscope 14. When the angle adjustment is completed, release the operating member 131, and the first elastic reset member 133 will move the locking member 132 closer to the first joint 121 again under the elastic force, so that the engaging tooth 132a engages with another engaging position 121a. At the same time, the second elastic reset member 134 pushes the operating member 131 into place. At this time, the laryngoscope 14 can be at another angle relative to the handle 11. More specifically, as Figures 8 to 10 As shown, when the laryngoscope 14 is at an angle of 120 degrees relative to the handle 11, the engaging teeth 132a are engaged in the first engaging position 121a1. When the laryngoscope 14 is at an angle of 90 degrees relative to the handle 11, the engaging teeth 132a are engaged in the second engaging position 121a2. When the laryngoscope 14 is at an angle of 0 degrees relative to the handle 11, i.e. in a folded state, the engaging teeth 132a are engaged in the third engaging position 121a3.

[0035] Compared with the prior art, the present invention sets a first joint 121 and a second joint 122, sets an angle adjustment mechanism 13 between the first joint 121 and the second joint 122, sets a plurality of engaging positions 121a on the first joint 121, and uses a locking member 132 to be set on the second joint 122, and at the same time, connects or separates with any engaging position 121a of the first joint 121 through its own engaging teeth 132a, thereby achieving the purpose of locking or releasing the first joint 121 and the second joint 122; and, since the operating member 131 and the locking member 132 are coaxially arranged with the first joint 121 and the second joint 122, the operating member 131 slides along the pivot axis of the first joint 121. Therefore, during operation, only one hand is required to hold the handle 11, and the other hand is required to hold the laryngoscope 14. At the same time, the operating member 131 can be pressed by fingers to unlock and adjust the angle of the laryngoscope 14, and the operation is very simple. Moreover, since the angle of the laryngoscope 14 is adjustable, the doctor can maintain his own gestures or body postures to operate the tongue lifter 1 when facing different patients, which is very comfortable and convenient to use.

[0036] The structures of the display 2 and the Ramo connector involved in the video laryngoscope 100 of the present invention are well known to those skilled in the art and will not be described in detail herein.

[0037] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A tongue lifter, characterized in that: It 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, the laryngoscope is connected to the second joint, and the angle adjustment 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 is adjustable; the angle adjustment mechanism includes 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, and a plurality of engaging positions are circumferentially arranged around the central axis in the first joint; the locking member is arranged between the first joint and the second joint, and engaging teeth are arranged on the outer periphery; the operating member 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 member to approach or move away from the first joint, so that the engaging teeth engage or disengage from the engaging position.

2. The tongue lifter according to claim 1, characterized in that: 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 for bringing the locking member closer to the first joint.

3. The tongue lifter according to claim 2, characterized in that: A first accommodating hole is provided in the second joint, and the first accommodating hole accommodates the locking piece; an accommodating groove corresponding to the engaging tooth is opened on the inner wall of the first accommodating hole along its central axis direction, and the accommodating groove extends to the end surface of the second joint close to the first joint; the engaging tooth is arranged in the accommodating groove, so that the locking piece is axially movable and circumferentially fixed.

4. The tongue lifter according to claim 1, characterized in that: A transparent protective cover is detachably provided on the outside of the laryngoscope.

5. The tongue lifter according to claim 2, characterized in that: A second accommodating hole is provided in the second joint, and the second accommodating hole accommodates the first elastic reset member.

6. The tongue lifter according to claim 1, characterized in that: The operating member is arranged on a side of the first joint facing away from the locking member, and a push column extends from the operating member. The push column freely passes through the first joint and extends to the other side and abuts against the locking member, so as to push the locking member away from the first joint when the operating member is pressed.

7. The tongue lifter according to claim 1, characterized in that: The angle adjustment mechanism further includes a second elastic reset member, which is arranged between the first joint and the operating member to provide an elastic force to keep the operating member away from the locking member.

8. A visual laryngoscope, characterized in that: It comprises a display, a connector, a camera and the tongue lifter according to any one of claims 1 to 7, wherein the display is detachably connected to the handle of the tongue lifter via the connector, and the camera is arranged at the front end of the laryngoscope.

9. The video laryngoscope according to claim 8, characterized in that: The video laryngoscope also includes a connecting bracket, which is provided with a pivot mechanism. The pivot mechanism includes a first pivot part and a second pivot part pivotally connected to the first pivot part. The first pivot part is connected to one end of the connector, and the second pivot part is connected to the display.

10. The video laryngoscope according to claim 8, characterized in that: The visual laryngoscope further comprises a connecting bracket, the connecting bracket is provided with a battery compartment, one side of the battery compartment is provided with an opening, and the battery can be installed into the battery compartment or removed from the battery compartment through the opening.

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