A fixed tongue depressor in oral cavity

Abstract

The present invention belongs to the field of medical devices, and relates to a tongue depressor, and in particular to an intraoral fixed tongue depressor. The intraoral fixed tongue depressor comprises a tongue depressor device and a fixing device; the tongue depressor device comprises a longitudinal tongue depressor body and a transverse tongue depressor body, and the longitudinal tongue depressor body and the transverse tongue depressor body are connected in a "T" shape; the fixing device comprises a front fixing part and a rear fixing part. When in use, the longitudinal tongue depressor body is fixed by the front fixing part, and the rear fixing part is respectively arranged on both sides of the transverse tongue depressor body to fix the transverse tongue depressor body; by the arrangement of the transverse tongue depressor body and the longitudinal tongue depressor body, the tongue body is restricted from moving in the transverse and longitudinal directions, and a better tongue body limiting effect can be achieved.

Description

Technical Field

[0001] The invention belongs to the field of medical instruments and relates to a tongue depressor, in particular to an intraoral fixed tongue depressor. Background Art

[0002] In maxillofacial surgery, the tongue position is sometimes limited to obtain a better surgical field of view or to prevent the tongue from interfering with the surgical process, usually by pressing the tongue down or moving it to the left or right. Since the patient cannot control the movement of the tongue under general anesthesia, the traditional method is to adjust and fix the tongue position by holding a tongue depressor.

[0003] Since the tongue depressor needs to be inserted from outside the mouth, the contact area between the tongue depressor and the tongue is limited due to the angle problem, and the tongue is flexible. In order to press the tongue down, a large force needs to be applied locally. Since the tongue has abundant blood circulation tissue, applying a large pressure force locally to the tongue for a long time may affect the function of the tongue.

[0004] During the supine position, the tongue is in a relaxed state and is prone to fall back and curl under the action of gravity. The backward and curled tongue may interfere with the fixation of the endotracheal tube or compress the endotracheal tube, affecting the ventilation effect. Since the tongue is thin in the front and thick in the back, it is difficult to press the tongue with a tongue depressor to prevent it from falling back.

[0005] Meanwhile, adjusting and fixing the tongue position by holding a tongue depressor not only wastes human resources, but also interferes with the external operation space of the surgical area by the hand holding the tongue depressor. In order to achieve the effect of fixing the tongue without hand, the present invention proposes an intraoral fixed tongue depressor. Summary of the invention

[0006] The purpose of the present invention is to provide an intraoral fixed tongue depressor in view of the fact that the existing devices cannot achieve the effect of limiting the position of the tongue when the tongue is out of hand during the current maxillofacial surgery.

[0007] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0008] An intraoral fixed tongue depressor comprises a tongue depressor device and a fixing device; the fixing device is used to fix the tongue depressor device, the tongue depressor device comprises a longitudinal tongue depressor body and a transverse tongue depressor body, the longitudinal tongue depressor body and the transverse tongue depressor body are connected in a "T" shape; the fixing device comprises a front fixing part and a rear fixing part, the front fixing part is connected to the longitudinal tongue depressor body, the rear fixing part is respectively arranged on both sides of the tongue depressor device and connected to the transverse tongue depressor body; the front fixing part comprises a first fixing part and a second fixing part, the second fixing part is arranged on the front fixing part Below the first fixing part, the second fixing part includes two horizontally and vertically arranged tooth clamping plates; the rear end fixing part includes a supporting body and a connecting body; the supporting body is pressed against the molars of the upper and lower jaws, and the connecting body is connected to the supporting body in a "T" shape; the connecting body cooperates with the horizontal tongue depressor to adjust the position of the rear end fixing part; when in use, the front end fixing part is arranged on the incisor of the lower jaw, and the rear end fixing part is arranged between the teeth of the upper and lower jaws, the longitudinal tongue depressor longitudinally presses the middle and front part of the tongue body, and the horizontal tongue depressor horizontally presses the back part of the tongue body.

[0009] Furthermore, the longitudinal tongue depressor comprises a central axis, a variable pitch structure, a tongue depressor and an adjustment structure; the adjustment structure controls the variable pitch structure to move the tongue depressor away from or close to the central axis; the transverse tongue depressor is connected to the rear end fixing part through an axial hole.

[0010] Among them, the variable pitch structure is a cross-type slotted rod pin-connected structure, which includes a fixed rod and a movable rod, and the fixed rod and the movable rod are cross-arranged; the movable rod is provided with a hollow groove, the fixed rod passes through the hollow groove, and the movable rod and the fixed rod are connected by a central axis pin; one end of the fixed rod and the movable rod are both provided with a clearance structure.

[0011] Among them, the central axis is rod-shaped, comprising a guide rail section, an angle adjustment section, and a limit block; the guide rail section is a polygonal column structure, the limit block is a cylindrical structure, the guide rail section is arranged between the limit block and the angle adjustment section, and the diameter of the limit block is larger than the diameter of the circumscribed circle of the guide rail section.

[0012] Among them, the tongue depressor is set in a plate shape, connected to the movable rod through a pin hole, and connected to the fixed rod through a strip groove; a limit stop edge is set on the top of the strip groove; the tongue depressing surface of the tongue depressor is set as an arc structure.

[0013] Among them, the adjustment structure includes a push cylinder, the inner diameter of which is not less than the outer diameter of the limit block; a transmission part is arranged at the front end of the push cylinder, the transmission part is sleeved on the guide rail section of the central axis and can slide along the guide rail section; a push cap is also arranged at the bottom of the push cylinder.

[0014] Wherein, the fixed rod is connected to the guide rail section of the central shaft through a pin shaft; and the movable rod is connected to the transmission part of the adjustment structure through a pin shaft.

[0015] Among them, the angle adjustment section of the central axis is set as a regular octagonal prism, and a regular octagonal blind hole matching the angle adjustment section is set in the middle of the transverse tongue depressor, and the angle adjustment section of the central axis is embedded in the regular octagonal blind hole of the transverse tongue depressor.

[0016] Furthermore, a cavity is arranged below the transverse tongue depressor, an air bag is arranged outside the cavity, and the air bag is tightly connected to the cavity.

[0017] Furthermore, a pressure regulating device is also provided on the cavity of the transverse tongue depressor, and the pressure regulating device includes a pressure relief valve and a pressure increasing valve; the pressure relief valve is used to release the gas in the airbag, and the pressure increasing valve is used to inject gas into the airbag.

[0018] Furthermore, wherein the first fixing portion comprises a movable guide hole, a top fixing threaded hole, and a top fixing screw, the push cylinder of the adjustment structure passes through the movable guide hole, the top fixing threaded hole cooperates with the top fixing screw to fix the push cylinder; the ends of the two clamping plates are arranged in a trumpet shape; and wavy silicone is arranged on the opposite surfaces of the two clamping plates.

[0019] Furthermore, buffer bodies are arranged on the upper end surface and the lower end surface of the support body.

[0020] Wherein, the buffer body is a convex silica gel, and the distances from the intersection of the connecting body and the supporting body to the upper end surface and the lower end surface of the supporting body are not equal.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] Compared with the prior art method of limiting the movement of the tongue by pressing a single position of the tongue, the present invention limits the movement of the tongue in the lateral and longitudinal directions by setting lateral and longitudinal tongue pressure bodies, thereby achieving a better tongue limiting effect.

[0023] The tongue depressing surface with an arc-shaped structure can increase the contact area between the tongue depressor and the tongue, thereby obtaining a better tongue depressing effect with a smaller pressure.

[0024] Through the opening and closing movement, the distance of the tongue depressor arranged on the cross-type slot rod pin-connecting structure relative to the central axis changes accordingly, so that the tongue depressing force can be adjusted.

[0025] Through the cooperation of the width adjustment hole and the connector of the rear end fixing part, the distance between the two rear end fixing parts can be freely adjusted, which can better adapt to the patient's dental arch width.

[0026] The tongue is pressed down by the airbag. Since the airbag is an elastic component, the contact area with the tongue is larger than direct rigid contact, which can better protect the vascular structure on the tongue.

[0027] Gas is injected into the airbag through the pressurizing valve. When the airbag pressure exceeds a certain limit, the pressure relief valve automatically releases the gas. When in use, the airbag presses against the tongue, and the pressure inside the airbag rises again to exceed the limit value, the pressure relief valve is activated again, so that the pressure inside the airbag is always maintained within a certain limit, avoiding damage to the tongue caused by excessive pressure.

[0028] The convex silicone on the rear end fixing part better fits the molar pit and groove morphology, which makes the rear end fixing part more firmly fixed in the oral cavity while protecting the teeth; the asymmetric "T"-shaped connection between the connector and the support body can reserve more space above the lateral tongue depressor to avoid interference with the use of the tracheal tube.

[0029] The front end fixing part and the rear end fixing part cooperate to fix the tongue depressor device. The tongue depressing pressure of the transverse tongue depressor is adjustable, and the tongue depressing pressure of the longitudinal tongue depressor is controllable. This can not only effectively solve the problem that the tongue depressor needs to be held by a person in maxillofacial surgery, but also reduce the possibility of tongue function damage caused by local compression of the tongue by the tongue depressor in the traditional tongue depressing method. At the same time, it can also avoid the normal use of the tracheal tube being affected by the tongue falling back. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a fixed tongue depressor in the oral cavity;

[0031] Figure 2 It is a schematic diagram of the cross-sectional structure of the longitudinal tongue depressor;

[0032] Figure 3 It is a structural schematic diagram of the longitudinal tongue depressor variable distance structure;

[0033] Figure 4 It is a schematic diagram of the top view of the structure when the longitudinal tongue depressor is deflected by 90°;

[0034] Figure 5 It is a schematic diagram of the three-dimensional structure of the transverse tongue depressor;

[0035] Figure 6 It is a schematic diagram of the cross-sectional structure of a transverse tongue depressor with a local connector;

[0036] Figure 7 It is a partially enlarged cross-sectional structural schematic diagram of the voltage regulating device;

[0037] Figure 8 It is a schematic diagram of the three-dimensional structure of the front end fixing part;

[0038] Fig. 9 It is a schematic diagram of the three-dimensional structure of the rear end fixing part.

[0039] The meanings of the symbols in the figure are as follows:

[0040] 1. Longitudinal tongue depressor; 11. Central axis; 111. Guide rail section; 112. Angle adjustment section; 113. Stop block; 12. Variable pitch structure; 121. Fixed rod; 122. Moving rod; 123. Central axis pin; 13. Tongue depressor; 131. Tongue depressor surface; 132. Strip groove; 133. Pin hole; 14. Adjustment structure; 141. Push cylinder; 142. Transmission unit; 143. Push cap;

[0041] 2. Lateral tongue pressing body; 21. Pressure relief valve; 211. Pressure relief cavity; 212. Pressure relief spring; 213. Pressure relief piston; 214. Pressure relief hole; 215. Pressure relief channel; 216. Pressure relief cavity; 22. Pressurizing valve; 221. Air nozzle; 222. Pressurizing cavity; 223. Intake piston; 224. Intake spring; 225. Intake channel; 226. Pressurizing cavity; 227. Intake hole; 23. Air bag; 24. Cavity; 25. Width adjustment hole; 26. Regular octagonal blind hole; 27. Retaining screw;

[0042] 3. Front end fixing part; 31. First fixing part; 311. Moving guide hole; 312. Top fixing threaded hole; 313. Top fixing screw; 32. Second fixing part; 321. Clamping plate; 322. Wave-shaped silicone;

[0043] 4. Rear end fixing part; 41. Support body; 42. Buffer body; 43. Connecting body. DETAILED DESCRIPTION

[0044] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0045] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0048] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0049] As attached Figure 1 As shown, this embodiment is an intraoral fixed tongue depressor, which includes a tongue depressor device and a fixing device; the tongue depressor device is used to limit the active position of the tongue, and the fixing device is used to fix the tongue depressor device. The tongue depressor device includes a longitudinal tongue depressor body 1 and a transverse tongue depressor body 2, and the longitudinal tongue depressor body 1 and the transverse tongue depressor body 2 are connected in a "T" shape; the fixing device includes a front fixing part 3 and a rear fixing part 4, and the front fixing part 3 is connected to the longitudinal tongue depressor body 1; the rear fixing part 4 is respectively arranged on both sides of the tongue depressor device and connected to the transverse tongue depressor body 2.

[0050] When in use, the front end fixing part 3 is arranged on the incisor of the mandible, the rear end fixing part 4 is arranged between the teeth of the upper and lower jaws, the longitudinal tongue depressor 1 longitudinally presses the middle front part of the tongue, and the transverse tongue depressor 2 transversely presses the rear part of the tongue.

[0051] Compared with the prior art method of limiting the movement of the tongue by pressing a single position of the tongue, the present invention limits the movement of the tongue in the lateral and longitudinal directions by setting lateral and longitudinal tongue pressure bodies, thereby achieving a better tongue limiting effect.

[0052] As attached Figure 1 -Attached Figure 3 As shown, the longitudinal tongue depressor 1 includes a central axis 11, a variable pitch structure 12, a tongue depressor 13 and an adjusting structure 14. The adjusting structure 14 controls the variable pitch structure 12 to make the tongue depressor 13 move away from or close to the central axis 11.

[0053] Preferably, the central axis 11 is rod-shaped, and includes a guide rail section 111 , an angle adjustment section 112 , and a limit block 113 .

[0054] Preferably, the guide rail segment 111 is a polygonal column structure.

[0055] Preferably, the limit block 113 is a cylindrical structure, the guide rail segment 111 is arranged between the limit block 113 and the angle adjustment segment 112 , and the diameter of the limit block 113 is greater than the diameter of the circumscribed circle of the guide rail segment 111 .

[0056] Preferably, the variable pitch structure 12 is a cross-slot rod pin-connected structure.

[0057] Preferably, the cross-slot rod pin connection structure includes a fixed rod 121 and a movable rod 122, and the fixed rod 121 and the movable rod 122 are cross-arranged; the movable rod is provided with a hollow groove, the fixed rod passes through the hollow groove, and the movable rod 122 is connected to the fixed rod 121 through a center axis pin 123; in order to cooperate with the hollow groove and avoid interference between the fixed rod 121 and the movable rod 122 during variable pitch movement, one end of the fixed rod 121 and the movable rod 122 are provided with a clearance structure.

[0058] Preferably, the air avoidance structure is a "Z" structure.

[0059] Preferably, the tongue depressor 13 is plate-shaped, connected to the movable rod 122 via a pin hole 133, and connected to the fixed rod 121 via a strip groove 132. In order to prevent the variable pitch structure 12 from detaching from the tongue depressor 13 during movement, a limit stop edge is provided on the top of the strip groove 132; the tongue depressing surface 131 of the tongue depressor 13 is provided as an arc structure.

[0060] Since the tongue is extremely rich in blood vessels and has high flexibility, when depressing the tongue, it is necessary to both press the tongue and not apply too much pressure to avoid the tongue depressor affecting the blood supply function of the tongue. In the present invention, the tongue depressing surface with an arc structure can increase the contact area between the tongue depressor and the tongue, thereby obtaining a better tongue depressing effect with less pressure.

[0061] Preferably, the adjustment structure 14 includes a push cylinder 141, the inner diameter of which is not less than the outer diameter of the limit block 113; a transmission part 142 is provided at the front end of the push cylinder 141, and the transmission part 142 is sleeved on the guide rail section 111 of the central axis 11 and can slide along the guide rail section 111; for the convenience of operation, a push cap 143 is also provided at the bottom of the push cylinder 141.

[0062] Preferably, the fixed rod 121 is connected to the guide rail section 121 of the central axis 11 via a pin; and the movable rod 122 is connected to the transmission part 142 of the adjustment structure 14 via a pin.

[0063] When in use, the push cap of the push-pull adjustment structure causes the push cylinder to move along the guide rail section of the central axis, driving the movable rod connected to the transmission part of the adjustment structure to rotate around the connecting body. The rotation of the movable rod in turn drives the fixed rod to rotate around the central axis pin, and the movable rod and the fixed rod rotate in coordination to form an opening and closing movement. Through the opening and closing movement, the tongue depressor arranged on the cross-slot rod pin-connected structure produces a corresponding change in distance relative to the central axis, thereby achieving the effect of adjusting the tongue depressing force.

[0064] As attached Figure 4 -Attached Figure 5 As shown, the angle adjustment section 112 of the central axis 11 is set as a regular octagonal prism, and the middle of the transverse tongue depressor 2 is provided with a regular octagonal blind hole 26 that matches the angle adjustment section 112. When in use, the angle adjustment section 112 of the central axis 11 is embedded in the regular octagonal blind hole 26 of the transverse tongue depressor 2.

[0065] When in use, the regular octagonal prism of the central axis section cooperates with the regular octagonal blind hole on the transverse tongue depressor to achieve the effect of 90° deflection of the longitudinal tongue depressor along the central axis radial direction, thereby meeting the requirement of placing the tongue to the left or right. At the same time, in some operations that take too long, fully placing the tongue to one side may affect the blood circulation of the tongue, and there will be a need for partial lateral placement. The regular octagonal prism can also provide a 45° deflection, thereby meeting more lateral placement needs.

[0066] As attached Figure 1 , Attachment Figure 5 -Attached Figure 7 As shown, the transverse tongue depressor 2 is connected to the rear end fixing part 4 through the axial hole. Through the axial hole, the distance between the two rear end fixing parts 4 can be freely adjusted to adapt to the patient's dental arch width. A fixing screw 27 is provided on the transverse tongue depressor 2, and the fixing screw 27 is used to fix the position of the rear end fixing part 4.

[0067] In order to prevent the transverse tongue depressor 2 from causing excessive pressure on the vascular structure at the back of the tongue, a cavity 24 is further provided below the transverse tongue depressor 2 , and an air bag 23 is provided outside the cavity 24 , and the air bag 23 is tightly connected to the cavity 24 .

[0068] When in use, the tongue is pressed down by the airbag. Since the airbag is an elastic component, the contact area with the tongue is larger than direct rigid contact, which can better protect the vascular structure on the tongue.

[0069] A pressure regulating device is also provided on the cavity 24 of the transverse tongue pressing body 2 , and the pressure regulating device includes a pressure relief valve 21 and a pressure increasing valve 22 .

[0070] Preferably, the pressure relief valve 21 includes a pressure relief chamber 211, a pressure relief spring 212, a pressure relief piston 213, and a pressure relief channel 215. The pressure relief chamber 211 is provided with a pressure relief hole 214, the pressure relief channel 215 is communicated with the cavity 24, the pressure relief chamber 211 is provided with a pressure relief chamber 216, the diameter of the pressure relief chamber 216 is larger than the diameter of the pressure relief channel 215, one end of the pressure relief spring 212 is connected to the pressure relief piston 213, and the other end of the pressure relief spring 212 is arranged at the bottom of the pressure relief chamber 216; the pressure relief piston 213 presses against the outlet end of the pressure relief channel 215.

[0071] When in use, the airbag is squeezed to pressurize the pressure relief piston. Under the action of internal pressure, the pressure relief piston compresses the pressure relief spring. After the pressure relief spring is compressed to a certain extent, the pressure relief hole is connected with the pressure relief channel to form an air flow channel, so that the gas flows from the airbag of the horizontal tongue pressing body to the outside, thereby realizing the function of decompressing the airbag.

[0072] Preferably, the pressurizing valve 22 includes an air nozzle 221, a pressurizing chamber 222, an air intake piston 223, and an air intake spring 224; the air nozzle 221 is provided with an air intake channel 225, the pressurizing chamber 222 is arranged in the cavity 24, the air nozzle 221 is arranged outside the cavity 24, the pressurizing chamber 222 is connected to the air nozzle 221, the pressurizing chamber 222 is provided with a pressurizing chamber 226, the diameter of the pressurizing chamber 226 is larger than the diameter of the air intake channel 225, the pressurizing chamber 222 is provided with an air intake hole 227, one end of the air intake spring 224 is connected to the air intake piston 223, and the other end of the air intake spring 224 is arranged at the bottom of the pressurizing chamber 226; the air intake piston 223 presses against the outlet end of the air intake channel 225.

[0073] The intake piston is pressurized through the intake channel, and the intake piston compresses the intake spring under the action of external pressure. After the intake spring is compressed to a certain extent, the intake channel is connected with the intake hole set on the pressurization chamber to form an air flow channel, so that the gas enters the airbag of the transverse tongue depressor from the outside, thereby realizing the function of pressurizing the airbag.

[0074] When the air pressure in the airbag is too low, gas is injected into the airbag through the pressure-increasing valve. When the airbag pressure exceeds a certain limit value, the pressure relief valve automatically releases the gas, and the injection of gas into the airbag is stopped at this time. When in use, the airbag is pressed against the tongue, and the pressure in the airbag rises again to exceed the limit value, the pressure relief valve is started again. When the pressure in the airbag is lower than the limit value, the pressure relief valve stops releasing pressure, so that the pressure in the airbag is always maintained within a certain limit to avoid damage to the tongue caused by excessive pressure.

[0075] As attached Figure 1 , Attachment Figure 8As shown, the front end fixing part 3 includes a first fixing part 31 and a second fixing part 32. The first fixing part 31 includes a moving guide hole 311, a top fixing threaded hole 312, and a top fixing screw 313. The push cylinder 141 of the adjustment structure 14 passes through the moving guide hole 311. The top fixing threaded hole 312 cooperates with the top fixing screw 313 to fix the push cylinder 141. The second fixing part 32 is arranged below the first fixing part 31. The second fixing part includes two horizontally and vertically arranged clamping plates 321; in order to facilitate the clamping of teeth, the ends of the two clamping plates 321 are arranged in a trumpet shape; in order to avoid the rigid contact between the clamping plates and the teeth, wavy silicone rubber 322 is arranged on the opposite surfaces of the two clamping plates 321.

[0076] Preferably, the clamping plate 321 is an elastic component.

[0077] As attached Figure 1 , Attachment Figure 6 , Attachment Fig. 9 As shown, the rear end fixing part 4 includes a supporting body 41 and a connecting body 43; the supporting body 41 is pressed against the molars of the upper and lower jaws, and the connecting body 43 is connected to the supporting body 41 in a "T" shape. In order to protect the teeth, a buffer body 42 is provided on the upper and lower end surfaces of the supporting body 41; the connecting body 43 cooperates with the width adjustment hole 25 on the transverse tongue depressor 2 to adjust the position of the rear end fixing part 4.

[0078] Preferably, the buffer body 42 is a convex silica gel, and the distances from the intersection of the connector 43 and the support body 41 to the upper end surface and the lower end surface of the support body 41 are not equal.

[0079] The convex silicone better fits the molar pit and groove morphology, and on the basis of protecting the teeth, the rear end fixing part can be more firmly fixed in the oral cavity; the asymmetric "T"-shaped connection between the connector and the support body can reserve more space above the lateral tongue depressor to avoid interference with the use of the tracheal tube.

[0080] When the present invention is in use, the air bag is inflated and pressurized through the pressure-increasing valve arranged on the transverse tongue depressor, and the pressurization is stopped when the pressure relief valve starts to relieve pressure; the rear end fixing part is extended into the width adjustment holes arranged on both sides of the transverse tongue depressor, so that the rear end fixing parts are arranged on the left and the right; the transverse tongue depressor and the rear end fixing part are placed in the mouth at the rear of the tongue body, and the transverse tongue depressor is fixed by the rear end fixing part; the adjustment structure of the longitudinal tongue depressor passes through the movable guide hole of the front end fixing part, adjusts the height of the front end fixing part, and fixes the front end fixing part on the lower incisor, so that the angle adjustment section of the central axis of the longitudinal tongue depressor is embedded in the regular octagonal blind hole of the transverse tongue depressor; after the tongue depressor is moved to a suitable position by using the adjustment structure, the longitudinal tongue depressor is fixed by the top fixing screw of the front end fixing part.

[0081] In the present invention, the front end fixing part and the rear end fixing part cooperate to fix the tongue depressor device, the tongue depressing pressure of the transverse tongue depressor is adjustable, and the tongue depressing pressure of the longitudinal tongue depressor is controllable, which can not only effectively solve the problem that the tongue depressor needs to be held by a person in maxillofacial surgery, but also solve the hidden danger of tongue function damage caused by the tongue depressor locally pressing the tongue in the traditional tongue depressing method, and at the same time can effectively avoid the normal use of the tracheal tube being affected by the tongue falling back.

[0082] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. An intraoral fixed tongue depressor, characterized in that: It comprises a tongue depressing device and a fixing device, wherein the fixing device is used to fix the tongue depressing device; the tongue depressing device comprises a longitudinal tongue depressing body and a transverse tongue depressing body, wherein the longitudinal tongue depressing body and the transverse tongue depressing body are connected in a "T" shape; The fixing device comprises a front fixing part and a rear fixing part, wherein the front fixing part is connected to the longitudinal tongue depressor, and the rear fixing part is respectively arranged on both sides of the tongue depressor and connected to the transverse tongue depressor; The front end fixing portion includes a first fixing portion and a second fixing portion, the second fixing portion is arranged below the first fixing portion, and the second fixing portion includes two clamping plates arranged horizontally and vertically; The rear end fixing part comprises a supporting body and a connecting body; the supporting body is pressed against the molars of the upper and lower jaws, and the connecting body is connected to the supporting body in a "T" shape; the connecting body cooperates with the transverse tongue depressing body to adjust the position of the rear end fixing part; When in use, the front end fixing part is arranged on the incisor of the mandible, the rear end fixing part is arranged between the teeth of the upper and lower jaws, the longitudinal tongue pressing body longitudinally presses the middle front part of the tongue body, and the transverse tongue pressing body transversely presses the rear part of the tongue body.

2. The oral fixed tongue depressor according to claim 1, characterized in that: The longitudinal tongue depressor comprises a central axis, a variable pitch structure, a tongue depressor and an adjustment structure; the adjustment structure controls the variable pitch structure to make the tongue depressor move away from or close to the central axis; The transverse tongue depressor is connected with the rear end fixing portion through the shaft hole.

3. The intraoral fixed tongue depressor according to claim 2, characterized in that: The variable pitch structure is a cross-type slotted rod pin-connected structure, which includes a fixed rod and a movable rod, wherein the fixed rod and the movable rod are cross-arranged; the movable rod is provided with a hollow groove, the fixed rod passes through the hollow groove, and the movable rod and the fixed rod are connected via a central axis pin; one end of each of the fixed rod and the movable rod is provided with a clearance structure.

4. The intraoral fixed tongue depressor according to claim 3, characterized in that: The central axis is rod-shaped, comprising a guide rail section, an angle adjustment section, and a limit block; the guide rail section is a polygonal column structure, the limit block is a cylindrical structure, the guide rail section is arranged between the limit block and the angle adjustment section, and the diameter of the limit block is greater than the diameter of the circumscribed circle of the guide rail section; The tongue depressor is arranged in a plate shape, the tongue depressor is connected to the movable rod through a pin hole, and the tongue depressor is connected to the fixed rod through a strip groove; a limit stop edge is arranged on the top of the strip groove; the tongue depressing surface of the tongue depressor is arranged in an arc structure; The adjustment structure comprises a push tube, the inner diameter of which is not less than the outer diameter of the limit block; a transmission part is arranged at the front end of the push tube, the transmission part is sleeved on the guide rail section of the central axis and can slide along the guide rail section; a push cap is also arranged at the bottom of the push tube; The fixed rod is connected to the guide rail section of the central shaft through a pin shaft; the movable rod is connected to the transmission part of the adjustment structure through a pin shaft.

5. The intraoral fixed tongue depressor according to claim 4, characterized in that: The angle adjustment section of the central axis is set as a regular octagonal prism, and a regular octagonal blind hole matching with the angle adjustment section is set in the middle of the transverse tongue depressor. The angle adjustment section of the central axis is embedded in the regular octagonal blind hole of the transverse tongue depressor.

6. The intraoral fixed tongue depressor according to claim 5, characterized in that: A cavity is also arranged below the transverse tongue depressor, an air bag is arranged outside the cavity, and the air bag is tightly connected to the cavity.

7. The intraoral fixed tongue depressor according to claim 6, characterized in that: A pressure regulating device is also provided on the cavity of the transverse tongue depressor, and the pressure regulating device comprises a pressure relief valve and a pressure increasing valve; the pressure relief valve is used to release the gas in the airbag, and the pressure increasing valve is used to inject gas into the airbag.

8. The intraoral fixed tongue depressor according to claim 7, characterized in that: The first fixing part includes a movable guide hole, a top fixing threaded hole, and a top fixing screw. The push cylinder of the adjustment structure passes through the movable guide hole. The top fixing threaded hole cooperates with the top fixing screw to fix the push cylinder. The ends of the two clamping plates are set to a trumpet shape; wavy silicone is set on the opposite surfaces of the two clamping plates.

9. The intraoral fixed tongue depressor according to claim 8, characterized in that: The upper end surface and the lower end surface of the support body are provided with a buffer body.

10. The intraoral fixed tongue depressor according to claim 9, characterized in that: The buffer body is a convex silica gel, and the distances from the intersection of the connector and the support body to the upper end surface and the lower end surface of the support body are unequal.

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