CN215128316U

CN215128316U - Oropharyngeal operation mouth gag

Info

Publication number: CN215128316U
Application number: CN202120674514.0U
Authority: CN
Inventors: 江国昌; 吴峻青
Original assignee: Zhenjiang First Peoples Hospital
Current assignee: Zhenjiang First Peoples Hospital
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-12-14
Anticipated expiration: 2031-04-01

Abstract

The utility model discloses a mouth gag for oropharynx operation, including opening frame (1), pressure tongue unit (2) and lighting unit (3), one side of opening frame (1) is provided with a mouthful tooth pad (11), pressure tongue unit (2) are suitable for to be installed opening frame (1) go up with the relative one side of a mouthful tooth pad (11), lighting unit (3) are including cold polished rod, the exit end of cold polished rod is equipped with light-emitting direction adjusting device. The lighting area of the lighting light guided by the optical fiber can be adjusted through the light-emitting direction adjusting device, and the lighting effect of the oropharyngeal operation is improved.

Description

Oropharyngeal operation mouth gag

Technical Field

The utility model relates to a surgical instrument, in particular to a mouth opener for oropharyngeal operation.

Background

When the oropharyngeal operation is performed on a patient, the operation and observation of the operation condition need to be performed through the oral cavity of the patient, so that the patient needs to keep a large-limit mouth opening state for a long time, the mouth opening state is difficult to be kept through the autonomous action of the patient, and the mouth opening operation needs to be performed by using a mouth opener.

The mouth opener is an instrument for opening the oral cavity of a patient and facilitating the examination of the oropharynx or the operation of the oropharynx. The mouth gag can prop open the oral cavity of a patient, and can also press the root of the tongue of the patient through a tongue spatula arranged on the mouth gag so as to fully expose the oropharynx of the patient; the lighting fiber is inserted through the fiber conduit to light the oropharynx area of the patient, so that the oropharynx examination or the oropharynx operation is convenient to carry out.

The optical fiber conduit of the existing oropharyngeal operation mouth gag is usually made of metal materials, and the illumination position formed when the illumination optical fiber is inserted from the optical fiber conduit is relatively fixed, so that the mouth gag is difficult to adapt to the operation requirements of different positions of the oropharyngeal portion of a patient. Although the illumination position can be changed to a certain extent by adjusting the insertion length of the illumination optical fiber, the track for changing the illumination position is fixed, and an autonomously controllable illumination area cannot be formed, thereby influencing the illumination effect in the operation.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide an oropharyngeal operation mouth gag, can conveniently adjust the illumination position of illumination light source, improve the illuminating effect of oropharyngeal operation.

In order to solve the technical problem, the utility model provides an oropharynx portion operation gag, including the gag, press tongue unit and lighting unit, one side of gag is provided with the odontoid pad, press the tongue unit to install on the gag with the relative one side of odontoid pad, lighting unit includes that optic fibre pipe and direction adjust the structure, optic fibre pipe and direction are adjusted the structure and are set up press on the tongue unit, the direction is adjusted the structure and is suitable for the regulation and pass through the light-emitting direction of the leading-in optic fibre of optic fibre pipe.

Preferably, the direction adjustment structure is the direction adjustment knob, the direction adjustment knob includes button head and button pole, the direction adjustment knob can pass through the button pole is installed on pressing the tongue unit, turn round and be provided with optic fibre direction pipe on the head, turn round the head and can adjust optic fibre direction pipe for press the direction of tongue unit.

Preferably, the button head further comprises a torsion head column, a spring cavity is formed in the torsion bar, the torsion head column penetrates through the end portion of the torsion bar and is installed in the spring cavity, a spring retaining plate is fixed at the end portion of the torsion head column, a spring is sleeved on the torsion head column and is located between the spring retaining plate and the end portion of the torsion bar, and positioning teeth are arranged at the positions where the button head and the torsion bar are in contact with each other.

Further, the direction adjusting structure is a direction adjusting pipe.

Preferably, the mouth opening frame is a U-shaped frame, the mouth tooth pad is arranged at the end part of the straight rod on one side of the U-shaped frame, the end part of the straight rod on the other side of the U-shaped frame is provided with a fixed seat, and the tongue pressing unit is suitable for being detachably connected with the fixed seat.

Further preferably, the tongue depressing unit comprises a tongue depressing plate, a fixing rod and a tail handle, the fixing seat is provided with a mounting groove, and the fixing rod is suitable for being mounted in the mounting groove.

Furthermore, an adjusting clamp is arranged on the fixing seat, adjusting teeth are arranged on the fixing rod, and the fixing rod can limit the installation position of the fixing rod in the installation groove through the matching of the adjusting clamp and the adjusting teeth.

Preferably, the optical fiber conduit penetrates through the tongue depressor and the tail handle to be mounted on one side of the fixing rod, the outlet end of the optical fiber conduit is bent towards the direction of the direction adjusting structure, an adjusting structure mounting hole is formed in the outer side face of the tongue depressor, and the direction adjusting structure is detachably mounted in the adjusting structure mounting hole.

Further preferably, the number of the adjusting structure mounting holes is multiple, and the plurality of the adjusting structure mounting holes are linearly arranged along the length direction of the tongue depressor.

Furthermore, the oropharyngeal operation mouth gag of the utility model also comprises an extension sleeve which is suitable for being sleeved on the end part of the tongue depressor.

Through the technical scheme, the utility model discloses an oropharynx portion operation gag can fill up through the oral teeth that sets up in gag one side and fix on patient's last incisor, presses down in patient's tongue heel through the tongue pressing unit that sets up at gag opposite side, has not only guaranteed that patient is in the state of opening a mouth of big limit, has still pressed patient's tongue root position, has fully exposed patient's oropharynx portion, and the convenience is gone on smoothly to the observation and the operation at operation position. The arrangement of the optical fiber conduit can guide the insertion direction of the illumination optical fiber, so that the illumination optical fiber inserted through the optical fiber conduit can conveniently enter the direction adjusting structure. The direction of the light-emitting end of the illuminating optical fiber can be adjusted by the arrangement of the direction adjusting structure, so that the position of an illumination area formed by the illuminating light can be adjusted, and the illumination requirements of different positions of the oropharynx and different operation stages of a patient can be met.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the oropharyngeal operation speculum of the present invention;

FIG. 2 is a schematic view of a U-shaped frame according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a tongue depressing unit and an illumination unit according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a tongue depressing unit and an illumination unit according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a direction adjustment knob according to an embodiment of the present invention;

fig. 6 is a schematic view of a direction adjustment tube structure according to an embodiment of the present invention.

Description of the reference numerals

1-mouth rack 11 mouth tooth pad

12 mounting groove for fixing seat 121

122 adjusting clamp 123 fixing hole

2 tongue-spatula unit 21 spatula

211 adjusting structure mounting hole 22 fixing rod

Handle at tail part of 23 regulating teeth 221

3 illumination unit 31 fiber optic catheter

311 fixing ring 32 direction adjusting button

321 twisting head 322 knob rod

323 fiber channel 324 twist post

325 spring cavity 326 spring catch

327 spring 328 locating tooth

33 Direction adjusting pipe 331 mounting part

332 bellows part

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, and it should be understood that the embodiments described herein are merely for purposes of illustration and explanation, and the scope of the present invention is not limited to the following embodiments.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may include, for example, a fixed connection, a detachable connection, or an integral connection; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in figures 1 to 6, one embodiment of the oropharyngeal operation gag of the present invention comprises a gag 1, a tongue depressor unit 2 and an illumination unit 3. The mouth opening frame 1 is a metal bracket used for supporting the oral cavity of a human body to be in an opening state, the mouth opening frame 1 can be in a U shape, can also be in other shapes such as an oval shape and a round shape, and the size of the mouth opening frame is generally equivalent to the opening state of the oral cavity of the human body. One side of the mouth-opening frame 1 is fixed with a mouth tooth pad 11 which is used for being fixed on the incisors of a patient. The mouth-piece pad 11 may be made of a thin metal sheet, and is formed into a metal ring having an opening on one side, and the side of the metal ring opposite to the opening is welded to the mouth-piece holder 1. The mouth-opening frame 1 is connected with a tongue-depressing unit 2 at one side opposite to the mouth tooth pad 11. The tongue depressor 2 may be made of a metal material and bent toward one side of the mask 1 so that the tongue base portion of the human body can be depressed by the tongue depressor 2. Because the tongue pressing unit 2 and the oral tooth pads 11 are respectively fixed on two opposite sides of the mouth opening frame 1, the tongue pressing unit 2 can be pressed on the tongue root part of a human body, and the oral tooth pads 11 are fixed on the incisors of a patient, the oral cavity of the patient can be supported in an expanded state, the patient is prevented from closing the oral cavity, and a good oropharyngeal operation environment is provided for a doctor. The illumination unit 3 is formed as a passage through which an illumination optical fiber for providing an illumination light source for oropharyngeal surgery passes. The illumination unit 3 comprises an optical fiber conduit 31 and a direction adjusting structure, the optical fiber conduit 31 can be a metal tube for passing optical fibers, and the optical fiber conduit 31 and the direction adjusting structure are both arranged on the tongue depressing unit 2. The optical fiber tube 31 is generally arranged in the direction of the tongue-depressing unit 2 to be formed in a shape corresponding to the oral passage of the human body so that the illumination fiber is bent toward the throat wall after passing through the optical fiber tube 31, so that the illumination light introduced through the illumination fiber is irradiated to the middle portion of the throat wall. The direction adjustment structure is provided at an exit portion of the fiber guide tube 31 so that the direction adjustment structure can be entered from the fiber guide tube 31 through the illumination fiber. The direction adjusting structure can adjust the direction of the light outlet of the illuminating optical fiber so as to adjust the irradiation area formed by the illuminating light at the oropharynx part. The direction adjusting structure can be various devices which can drive the light outlet end of the illuminating optical fiber to bend towards different directions, such as an optical fiber guiding structure with adjustable rotating direction, an optical fiber with adjustable terminal direction passing through a pipeline and the like. When the illumination position needs to be adjusted in the oropharyngeal operation process, the light-emitting direction adjusting device can be adjusted by using a proper instrument, the light-emitting port end of the illumination optical fiber is driven to be bent, and the illumination light irradiates to a required illumination area.

In some embodiments of the oropharyngeal surgical speculum of the present invention, as shown in fig. 1, 3-5, the direction adjustment structure is a direction adjustment knob 32. The direction adjustment knob 32 includes a knob 321 and a knob stem 322 connected to each other. The knob rod 322 can be connected with the tongue depressing unit 2, the knob head 321 is provided with a fiber passage 323 through which the illumination fiber passes, and the illumination fiber inserted from the fiber guide 31 can enter the fiber passage 323 and pass through the fiber passage 323. After the knob rod 322 is connected to the tongue-depressing unit 2, the twisting head 321 can rotate relative to the tongue-depressing unit 2, and the direction of the optical fiber channel 323 on the twisting head 321 relative to the tongue-depressing unit 2 can be adjusted, so that the illumination optical fiber passing through the optical fiber channel 323 can be bent to different degrees in different directions, and the illumination light emitted from the light outlet of the illumination optical fiber can be irradiated to different areas of the oropharynx of a patient. The rotation of the twisting head 321 relative to the tongue-depressing unit 2 can be realized by the rotation of the twisting head 321 relative to the torsion bar 322, and also by the rotation of the torsion bar 322 relative to the tongue-depressing unit 2. After the rotation state of the twisting head 321 is adjusted, the optical fiber channel 323 can stay in different relative directions with respect to the tongue-depressing unit 2, so that the illumination area formed by the light introduced by the illumination fiber stays at a desired position. The rotating direction of the twisting head 321 can be conveniently adjusted through surgical instruments such as vascular clamps, needle holders and the like in the operation process, so that the illumination area formed by illumination light can be conveniently adjusted. Illumination fibre can be in the utility model discloses an oropharynx operation gag fixes and inserts fiber conduit 31 and fiber channel 323 before patient's oral area, also can the utility model discloses an oropharynx operation gag is fixed accomplishes the back, will turn round now that head 321 adjusts to fiber channel 323 just to fiber conduit 31's export direction, inserts behind the illumination fibre, again according to actual need adjust the direction of rotation of turning round head 321.

As an embodiment of the oropharyngeal operation gag of the present invention, as shown in fig. 5, one end of the button head 321 is provided with a button head column 324, the inside of the torsion bar 322 is provided with a spring cavity 325 with an open end, the button head column 324 passes through the closed end of the torsion bar 322 and is inserted into the spring cavity 325, and the button head 321 can rotate relative to the button bar 322 by using the button head column 324 as a rotation axis. The spring 327 is sleeved on the portion of the torsion-head column 324 located in the spring cavity 325, and the end of the torsion-head column 324 is fixedly connected with the spring stop plate 326, so that the spring 327 is located between the spring stop plate 326 and the closed end of the torsion bar 322, and under the elastic force of the spring 327, the end of the torsion head 321 where the torsion-head column 324 is located is tightly pressed against the closed end of the torsion bar 322. The contact parts of the button head 321 and the torsion bar 322 are provided with positioning teeth 328, and the matching teeth 328 on the button head 321 and the positioning teeth 328 on the torsion bar 322 are matched, so that the button head 321 can better stay at a plurality of rotating positions relative to the button bar 322.

As an embodiment of the oropharyngeal operation gag of the present invention, as shown in FIG. 6, the direction adjustment structure is a direction adjustment tube 33. A direction adjustment tube 33 includes a mounting portion 331 and a bellows portion 332 connected to the mounting portion 331, and the direction adjustment tube 33 can be mounted on a tongue depressing unit 2 through the mounting portion 331 such that an inlet end of the bellows portion 332 faces an outlet of an optical fiber guide tube 31. Bellows portion 332 may be made of a plastic or metal material, and bellows portion 332 may be bent and may stay in different bent positions. By adjusting the bending direction of the bellows portion 332, the outlet direction of the bellows portion 332 can be adjusted. The bending direction of the bellows part 332 can be conveniently adjusted at any time by surgical instruments such as vascular clamps, needle holders and the like in the operation process, so that the position of an illumination area formed by illumination light guided through the illumination optical fiber on the pharynx can be conveniently adjusted.

In some embodiments of the oropharyngeal operation gag of the present invention, as shown in fig. 1 and 2, the mouth gag 1 uses a "U" shaped frame, and the stomal pad 11 can be fixed at the end of a straight bar on one side of the "U" shaped frame by welding or the like. The fixed seat 12 is fixedly connected to the end part of the straight rod on the other side of the U-shaped frame, and the tongue pressing unit 2 can be detachably connected to the U-shaped frame through the fixed seat 12. By fixing the mouth cushion 11 to the incisors of the patient and pressing the tongue-depressing unit 2 against the tongue of the patient, the oral cavity of the patient can be maintained in an expanded state to sufficiently expose the oropharynx of the patient.

In some embodiments of the oropharyngeal surgical speculum of the present invention, as shown in fig. 1, 3 and 4, the tongue depressing unit 2 includes a tongue depressor 21, a securing lever 22 and a tail pull 23. Tongue depressor 21 body coupling is in the one end of dead lever 22, and afterbody handle 23 fixed connection is at the other end of dead lever 22, is provided with the mounting groove 121 towards mouthcushion 11 direction on the fixing base 12, and dead lever 22 can install in mounting groove 121 to can slide in mounting groove 121. When the tongue pressing unit 2 is installed on the fixed seat 12, the tongue pressing plate 21 and the oral tooth pad 11 are positioned on the straight rods on different sides of the U-shaped frame, so that when the oral tooth pad 11 is fixed on the incisors of a patient, the tongue pressing plate 21 extends towards the oral cavity of the patient. The tongue depressor 21 is formed into a curved shape corresponding to the shape of the tongue root of the human body, and when the fixing rod 22 slides in the mounting groove 121 in the direction away from the oro-dental pad 11, the tongue depressor 21 can press the tongue root of the patient to expose the oropharynx of the patient. The sliding position of the fixing rod 22 in the mounting groove 121 can be adjusted, the tail handle 23 is held, the fixing rod 22 is pushed and pulled, and the distance between the mouth cushion 11 and the tongue depressor 21 can be adjusted, so that the opening degree of the oral cavity of a patient can be adjusted, and the requirements of performing operations on patients with different physiques are met. The patient can be maintained in a certain open state by fixing the fixing rod 22 at a certain sliding position in the mounting groove 121.

As a specific embodiment of the oropharyngeal operation gag of the present invention, as shown in fig. 1, 3 and 4, one side of the fixing base 12 opposite to the mounting groove 121 is provided with an adjusting clip 122, and the head of the adjusting clip 122 extends into the mounting groove 121 through a fixing hole 123 provided on the fixing base 12. An adjusting tooth 221 is arranged on the fixed rod 22 at the side opposite to the tongue depressor 21, and when the fixed rod 22 is installed in the installation groove 121, the head of the adjusting clip 122 can be clamped at the adjusting tooth 221. When the adjusting clamp 122 is in a normal state, the fixing rod 22 can slide in the mounting groove 121 in a direction away from the odontoid pad 11, but cannot slide in a direction close to the odontoid pad 11. The head of the adjusting clip 122 can be lifted by pressing the tail of the adjusting clip 122, so that the head of the adjusting clip 122 leaves the adjusting teeth 221, and the fixing rod 22 can slide freely in the mounting groove 121.

In some embodiments of the oropharyngeal surgical speculum of the present invention, as shown in figures 1, 3 and 4, the fiber optic conduit 31 is mounted on the fixed rod 22 on the side of the tongue depressor 21 through the tongue depressor 21 and the tail pull 23. The outlet end of the optical fiber conduit 31 passes through the tongue depressor 21 and then is bent along the extending direction of the tongue depressor 21, so that the outlet of the optical fiber conduit 31 faces the direction of the direction adjusting structure, and thus, after the illumination optical fiber is inserted into the optical fiber conduit 31, the end part of the illumination optical fiber can conveniently enter the direction adjusting structure. The lateral surface of tongue depressor 21, that is the one side that is close to mouthcushion 11 is provided with adjusts structure mounting hole 211, adjusts structure mounting hole 211 and can be for seting up the blind hole at tongue depressor 21 lateral surface, prevents the medial surface of tongue depressor 21, that is the regulation structure mounting hole 211 on the one side of contact patient's tongue to and install the direction regulation structure installation component in adjusting structure mounting hole 211 and cause the discomfort of patient's tongue, even forms the injury to patient's tongue. The direction adjustment structure can be installed in adjusting the structure mounting hole 211, also can take off from adjusting the structure mounting hole 211, usually the utility model discloses a mouth gag for oropharynx operation uses before, with the direction adjustment structure installation in adjusting the structure mounting hole 211.

In some embodiments of the oropharyngeal operation speculum of the present invention, as shown in fig. 1, 3 and 4, the outer side surface of the tongue depressor 21 is provided with a plurality of adjusting structure mounting holes 211, and the direction adjusting structure can be installed in any one of the adjusting structure mounting holes 211, or a plurality of direction adjusting structures can be installed in the plurality of adjusting structure mounting holes 211, so as to facilitate the adjustment of the orientation of the illuminating optical fiber light outlet. A plurality of adjustment structure mounting holes 211 may be linearly provided at a middle position in the width direction of the tongue depressor 21 in the length direction of the tongue depressor 21. The direction adjusting structures installed in the different adjusting structure installation holes 211 have different pitching directions corresponding to the bending direction of the tongue depressor 21, so that light introduced through the illuminating optical fibers of the direction adjusting structures can irradiate different upper and lower positions of the mouth and the pharynx of the patient.

As a concrete implementation mode of the oropharyngeal operation mouth gag of the utility model, as shown in figure 3, the oropharyngeal operation mouth gag of the utility model is also provided with an extension sleeve 24. The lengthening sleeve 24 can be sleeved at the end part of the tongue depressor 21, so that the length of the tongue depressor 21 away from the fixing rod 22 after the lengthening sleeve 24 is sleeved on the tongue depressor 21 is lengthened, the tongue depressor can be applied to a few patients with deep oral cavity depth, and the tongue root of the patient is pressed. When tongue root compression is required for patients with shallow oral cavity depth, the extension sleeve 24 can be removed for use. A deep U-shaped groove 241 may be further provided on the outer side of the extension sleeve 24 to expose the adjustment structure mounting hole 211, facilitating the mounting of the direction adjustment structure on the tongue depressor 21. Of course, the extension sleeve 24 may be configured such that the depth of the sleeve on the tongue depressor 21 can only reach the outer side of the adjustment structure mounting hole 211 at the end of the tongue depressor 21, and in this case, a deep U-shaped groove may not be provided on the extension sleeve 24. However, since the sleeve depth is shallow, a clamping structure, such as a clamping clip and clamping tooth structure, a clamping spring and clamping tooth structure, etc., can be added at the contact position of the extension sleeve 24 and the tongue depressor 21 to prevent the extension sleeve 24 from falling off accidentally.

It should be noted that the oropharyngeal operation gag of the present invention can be used for oropharyngeal examination and treatment as well.

Reference throughout this specification to "one embodiment," "some embodiments," and "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. In this specification, the schematic representations thereof do not necessarily have to be directed to the same embodiment.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide the technical solution of the present invention with a plurality of simple modifications, including combining each specific technical feature in any suitable manner, and in order to avoid unnecessary repetition, the present invention does not provide additional description for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. The utility model provides a oropharynx portion operation gag which characterized in that, includes gag frame (1), tongue pressing unit (2) and lighting unit (3), one side of gag frame (1) is provided with orodental pad (11), tongue pressing unit (2) are installed gag frame (1) go up with orodental pad (11) relative one side, lighting unit (3) are including fiber conduit (31) and direction regulation structure, fiber conduit (31) and direction regulation structure set up on tongue pressing unit (2), the direction is adjusted the structure and is suitable for the regulation and pass through the export direction of the optic fibre of fiber conduit (31) leading-in.

2. The oropharyngeal surgical speculum of claim 1, characterized in that the direction adjustment structure is a direction adjustment knob (32), the direction adjustment knob (32) including a knob head (321) and a knob stem (322), the direction adjustment knob (32) being mountable on the tongue-depressing unit (2) through the knob stem (322), the twist head (321) being provided with a fiber channel (323), the twist head (321) being capable of adjusting the direction of the fiber channel (323) relative to the tongue-depressing unit (2).

3. The oropharyngeal surgical speculum of claim 2, characterized in that the button head (321) further comprises a button head column (324), a spring cavity (325) is arranged inside the torsion bar (322), the button head column (324) is installed in the spring cavity (325) through the end of the torsion bar (322), a spring stop (326) is fixed at the end of the button head column (324), a spring (327) is sleeved on the button head column (324), the spring (327) is located between the spring stop (326) and the end of the torsion bar (322), and the mutual contact part of the button head (321) and the torsion bar (322) is provided with a positioning tooth (328).

4. The oropharyngeal surgical speculum of claim 1, wherein the direction adjustment structure is a direction adjustment tube (33).

5. Oropharyngeal surgical speculum according to any one of claims 1-4, characterized in that the mouth-piece frame (1) is a "U" -shaped frame, the mouthpad (11) being provided at the end of a straight bar on one side of the "U" -shaped frame, the end of a straight bar on the other side of the "U" -shaped frame being provided with a fixed base (12), the tongue-depressing unit (2) being adapted to be detachably connected with the fixed base (12).

6. Oropharyngeal surgical speculum according to claim 5, characterized in that the tongue-depressing unit (2) comprises a tongue-depressing plate (21), a fixing rod (22) and a tail handle (23), the holder (12) being provided with a mounting slot (121), the fixing rod (22) being adapted to be mounted in the mounting slot (121).

7. The oropharyngeal surgical speculum of claim 6, characterized in that the holder (12) is provided with an adjustment clip (122), the fixing rod (22) is provided with an adjustment tooth (221), the fixing rod (22) being able to define the mounting position of the fixing rod (22) in the mounting groove (121) by cooperation of the adjustment clip (122) with the adjustment tooth (221).

8. The oropharyngeal surgical speculum according to claim 6, characterized in that the fiber optic tube (31) is mounted on one side of the fixing rod (22) through the tongue depressor (21) and the tail handle (23), the outlet end of the fiber optic tube (31) is bent towards the direction adjustment structure, the outer side of the tongue depressor (21) is provided with an adjustment structure mounting hole (211), and the direction adjustment structure is detachably mounted in the adjustment structure mounting hole (211).

9. The oropharyngeal surgical speculum of claim 8, characterized in that the number of said adjustment structure mounting holes (211) is plural, and the plural of said adjustment structure mounting holes (211) are linearly arranged along the length direction of the tongue depressor (21).

10. Oropharyngeal surgical speculum according to claim 9, characterized in that it further comprises an elongated sleeve (24), said elongated sleeve (24) being adapted to be sleeved on the end of the tongue depressor (21).