CN115381624A

CN115381624A - Medical otology operation inspection instrument

Info

Publication number: CN115381624A
Application number: CN202210862533.5A
Authority: CN
Inventors: 苗洪宾; 赵飞鹏; 柳庆君; 钟卫云; 程鈺; 向红松; 乔文
Original assignee: Chongqing Bishan Peoples Hospital
Current assignee: Chongqing Bishan Peoples Hospital
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-11-25

Abstract

The invention discloses a medical otology operation examination instrument, belonging to the technical field of medical instruments, the medical otology operation examination instrument comprises: the inspection handle, negative pressure guiding device and inspection subassembly, bottle and lock shutoff board have been placed through in the handheld portion at inspection handle, the drainage tube runs through the connecting axle in proper order, hollow cover, the inlet on second mounting hole and the bottle links together, the convenient pipe connection who is suitable for different thicknesses of connector of stair structure is installed to the tip at the drainage tube, with the hydrops suction in the duct under the inside negative pressure of bottle, reduce the burden in the ear, make the symptom improve, press the handle through make one side of connecting the axial mounting panel slide under the pulling of drainage tube, it uses the tip to inwards rotate as the axle center to connect epaxial third connecting rod pulling L shape arm lock, make a pair of triangle splint be close to each other, it presss from both sides out the earwax that is located the duct to be convenient for clear up.

Description

Medical otology operation inspection instrument

Technical Field

The invention belongs to the technical field of medical equipment, and particularly relates to a medical otology operation examination instrument.

Background

Secretory otitis media is also called exudative otitis media and catarrhal otitis media, and is divided into an acute stage and a chronic stage, the course of disease is more than eight weeks, the chronic stage is the stage of disease, and the treatment is divided into non-operative treatment and operative treatment. The non-operative treatment mainly comprises drug infection control, edema alleviation and eustachian tube inflation treatment, wherein the eustachian tube is a pipeline connected between an ear and a nose, the negative pressure of a middle ear cavity can be balanced, the effusion of the middle ear cavity is drained, and the eustachian tube inflation principle is that the pharyngeal opening of the eustachian tube is normally opened through specific actions, so that the normal function is recovered, and the liquid in the middle ear cavity is drained, so that the symptoms are improved.

Current publication No. CN109106325A discloses an otology uses inspection device that can fix with people's ear, prop, bearing bar and first collar including the ear, the below that the ear propped is fixed with the connecting rod, and the lower extreme of connecting rod and the upper surface interconnect of collar, the both sides of collar are connected with the silica gel pad, the lower extreme of outer pole is run through from the left side of bearing bar, and the left side of bearing bar installs adjusting bolt, first collar is located the surface of bracing piece, fixed cardboard is installed in the left side of threaded rod, the inside inspection rod that is run through of first collar, the front surface mounting who visits into the needle has LED cold light source and miniature camera. This can carry out otology department who fixes with people's ear and use inspection device, the ear props the outside of hanging whole at the auricle, the further improvement of spacing ring can insert the inspection rod to whole support performance, can insert in the first mounting ring and fix, utilizes the miniature camera head of installation to watch inside the ear to need not the handheld apparatus of doctor and operate.

But because can grow many fine hair in people's the ear, also be the auricular hair, during the otology operation inspection, generally insert into otoscope from the ear, the inside condition of ear is observed to the camera that carries through the otoscope tip, but can persist a lot of earwax on the auricular hair, the otoscope is at the inserted in-process, the earwax is attached to on the camera lens of otoscope easily, influence the inspection of ear, if do not cut out the auricular hair and can obstruct doctor's sight, influence the operation and go on, only watch inside the ear by miniature camera head and be difficult to master the inside condition of auditory canal, influence doctor's judgement.

Disclosure of Invention

The invention aims to provide a medical otology operation examination instrument to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a medical otological examination apparatus, comprising: the device comprises an inspection handle, a negative pressure flow guide device and an inspection assembly.

The inner part of the inspection handle is of a cavity structure, the inspection handle comprises a handheld part and a connecting part, the bottom surface of the connecting part extends inwards to form a mounting groove, a first mounting hole extending to the outer surface of the inspection handle is formed in the inner wall of the mounting groove in the connecting part, a second mounting hole extending to the outer surface of the inspection handle is formed in the inner wall of the handheld part, the pressing handle is connected in the mounting groove in a rotating mode, anti-slip pads are wrapped on the handheld part and the pressing handle, a first rectangular notch is formed in the bottom surface of the handheld part, and a blocking plate capable of being opened and closed with the first rectangular notch is installed on the inspection handle on one side of the first rectangular notch in a rotating mode through a hinge shaft.

Wherein, in order to carry out the water conservancy diversion to the hydrops in the patient's ear, negative pressure guiding device installs in handheld portion, and negative pressure guiding device is disposable product, changes through the first rectangle notch of handheld portion bottom surface, reduces breeding of bacterium.

Wherein, because some patient's ear endosome hair or cerumen are more, disturb the sight of doctor's inspection, for the barrier of cleaing away the hindrance doctor's sight, the inspection subassembly is including installing the hollow rod in the first mounting hole of inspection handle port department, install the connecting rod through the bearing rotation in the hollow rod, the connecting rod is kept away from the one end of inspection handle and is installed the centre gripping subassembly, the handing-over department of hollow rod and connecting rod installs quick-witted case, and hollow rod passes through quick-witted case and drives the connecting rod at hollow rod internal rotation, makes anchor clamps angle conversion convenient, is convenient for clear up the barrier in the ear.

Preferably, the negative pressure flow guide device comprises a bottle body, a liquid inlet and a negative pressure interface are arranged on the bottle body, a drainage tube is connected to the end of the liquid inlet, one end of the drainage tube, which is far away from the liquid inlet, penetrates through the second mounting hole, and a flow valve is mounted on a tube body through which the drainage tube penetrates.

Preferably, the flow valve is a rectangular sheet-shaped body, a clamping opening is formed in the middle of the rectangular sheet-shaped body, and the clamping opening is of a structure with a large end and a small end.

Preferably, the drainage tube is internally and symmetrically provided with wedge-shaped blocking pieces, the front ends of the wedge-shaped blocking pieces are provided with openings, and the rear ends of the wedge-shaped blocking pieces are tightly attached to the inner tube wall of the drainage tube.

Preferably, a hollow sleeve is installed on one side of the pressing handle, spring sets are symmetrically installed on the inner wall of the hollow sleeve, an arc-shaped clamping plate is installed between the spring sets on each side, and one end, far away from the liquid inlet, of the drainage tube penetrates through the second installation hole and is located between the pair of arc-shaped clamping plates.

Preferably, the clamping assembly comprises a mounting plate mounted together with the connecting rod, a shaft sleeve is mounted at one end of the mounting plate, which is far away from the connecting rod, a connecting shaft is arranged in the shaft sleeve in a matched and sliding manner, first connecting rods are symmetrically mounted at two sides of the shaft sleeve, an L-shaped clamping arm is rotatably mounted at one end of each first connecting rod, which is far away from the shaft sleeve, and a triangular clamping plate is mounted at one end of each L-shaped clamping arm, which is far away from the first connecting rod;

the connecting shaft is internally of a hollow structure, and anti-skid grains are arranged on the inner wall of the triangular clamping plate at equal intervals.

As a preferable mode of the present invention, the connecting shaft is fixedly provided with a mounting ring, two sides of the mounting ring are integrally provided with a second connecting rod, and a third connecting rod is rotatably connected between the second connecting rod and the L-shaped clamp arm;

wherein, the one end that the inlet was kept away from to the drainage tube runs through in hollow cover to the connecting axle, just the drainage tube runs through the one end integrated into one piece formula that goes out the connecting axle and installs the connector, the connector is stair structure.

Preferably, a spring is connected between the mounting ring and the shaft sleeve.

Preferably, the upper surface of the triangular clamping plate is provided with blades, and a shearing area is formed between adjacent blades.

Preferably, a motor and a slide rail seat are installed inside the case, a first gear is installed at the output end of the motor, a slide bar is matched and slides in the slide rail seat, teeth are arranged on two sides of the slide bar along the length direction, and the first gear is in meshed connection with the teeth on one side;

the hollow rod is provided with a first rectangular notch in one end side wall located in the machine box, a first gear is mounted at one end of the connecting rod located in the hollow rod, and the first gear is meshed with the teeth on the other side of the connecting rod.

The invention has the beneficial effects that:

1. the drainage tube in the ear wax cleaner has the function of traction, the pressing handle is pressed by pinching, the arc-shaped clamping plates are connected in the hollow sleeve through the spring group to clamp and fix the drainage tube, so that the length of the drainage tube between the hollow sleeve and the connecting shaft is kept unchanged all the time, the pressing handle slides to one side of the connecting shaft towards the mounting plate by being pulled by the drainage tube, the L-shaped clamping arms are pulled by a third connecting rod on the connecting shaft to rotate inwards by taking the end parts as axes, so that the pair of triangular clamping plates are close to each other, earwax clamped in the auditory canal can be cleaned conveniently, and the pair of triangular clamping plates reset each other under the action of the springs.

2. According to the invention, the bottle body is placed in the handheld part of the inspection handle and the blocking plate is buckled, the drainage tube sequentially penetrates through the connecting shaft, the hollow sleeve and the second mounting hole to be connected with the liquid inlet on the bottle body, the connector with the ladder structure is arranged at the end part of the drainage tube, so that the drainage tube is convenient to be suitable for connecting catheters with different thicknesses, the effusion in the auditory canal is sucked out under the negative pressure in the bottle body, the burden in the ear is reduced, and the symptoms are improved.

3. According to the invention, the blades are arranged on the upper surface of the triangular clamping plate, the shearing area is formed between the adjacent blades to clean the body hair in the auditory canal, the sheared body hair is sucked into the bottle body under the pressure of the negative pressure flow guide device, the output end of the motor drives the first gear to rotate, the rotating first gear drives the sliding strip to linearly move in the sliding rail seat through the meshing connection with the sliding strip, the moving sliding strip drives the second gear which is meshed and connected with the other side to rotate, and the rotating second gear drives the coaxial connecting rod to rotate, so that the angle between the pair of blades and the auditory canal can be conveniently adjusted, and the cleaning efficiency is improved.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the inspection handle of the present invention;

FIG. 3 is a schematic structural view of a negative pressure flow guiding device according to the present invention;

FIG. 4 is a schematic view of a flow valve configuration of the present invention;

FIG. 5 is a schematic view of the structure of the hollow sleeve of the present invention;

FIG. 6 is an enlarged view of the structure A of FIG. 1 according to the present invention;

fig. 7 is a schematic diagram of the internal structure of the chassis according to the present invention.

In the figure: 1. an inspection handle; 101. a hand-held portion; 1011. a first rectangular notch; 1012. a plugging plate; 102. a connecting portion; 1021. mounting grooves; 1022. a first mounting hole; 1023. a second mounting hole; 103. a pressing handle; 4. a negative pressure flow guide device; 401. a bottle body; 402. a liquid inlet; 403. a drainage tube; 4031. a connector; 404. a flow valve; 4041. clamping the opening; 405. a wedge-shaped baffle plate; 406. a negative pressure interface; 5. a hollow shaft; 501. a second rectangular notch; 6. a connecting rod; 7. a chassis; 8. a hollow sleeve; 9. a spring set; 10. an arc-shaped splint; 11. mounting a plate; 12. a shaft sleeve; 13. a connecting shaft; 14. a first link; 15. an L-shaped clamp arm; 16. a triangular splint; 1601. anti-skid lines; 17. a mounting ring; 18. a second link; 19. a third link; 20. a spring; 21. a blade; 22. a motor; 23. a slide rail seat; 24. a first gear; 25. a slide bar; 2501. teeth; 26. a second gear.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "fitted/connected", "connected", and the like, are to be interpreted broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1-2, a medical otological surgery examination apparatus includes: an inspection handle 1, a negative pressure flow guide device 4 and an inspection assembly.

Wherein, for the convenience of the doctor drives the work of inspection subassembly through pinching the pressure handle 103, make things convenient for doctor's operation to save the arm power, the inside of inspection handle 1 is the cavity structure, and inspection handle 1 is including handheld portion 101 and connecting portion 102, the inside extension of bottom surface of connecting portion 102 has seted up mounting groove 1021, set up the first mounting hole 1022 that extends to 1 surface of inspection handle on the inner wall of mounting groove 1021 in connecting portion 102, set up the second mounting hole 1023 that extends to 1 surface of inspection handle on the inner wall of handheld portion 101, the mounting groove 1021 internal rotation of connecting portion 102 is connected with and presses pressure handle 103, it has the slipmat all to wrap up on handheld portion 101 and the pressure handle 103, the bottom surface of handheld portion 101 is provided with first rectangle notch 1011, install the shutoff board that can open and shut with first rectangle notch 1011 through the hinge axis rotation on the inspection handle 1 of first rectangle notch 1011 one side 1012.

Wherein, for carrying out the water conservancy diversion to the hydrops in the patient's ear, negative pressure guiding device 4 is installed in handheld portion 101, and negative pressure guiding device 4 is disposable product, changes through the first rectangle notch 1011 of handheld portion 101 bottom surface, reduces breeding of bacterium.

Wherein, because some patient's ear endosome hair or earwax are more, disturb the sight of doctor's inspection, for cleaing away the barrier that hinders the doctor's sight, the inspection subassembly is including installing hollow rod 5 in first mounting hole 1022 of inspection handle 1 port department, install connecting rod 6 through the bearing rotation in the hollow rod 5, the centre gripping subassembly is installed to the one end that inspection handle 1 was kept away from to connecting rod 6, quick-witted case 7 is installed with the handing-over department of connecting rod 6 to hollow rod 5, hollow rod 5 passes through quick-witted case 7 and drives connecting rod 6 at hollow rod 5 internal rotations, it is convenient to make anchor clamps angle conversion, be convenient for clear up the barrier in the ear.

Specifically, referring to fig. 3-4, because some otitis media patients may have effusion in the middle ear cavity during illness, in order to drain effusion and reduce burden in ears, and improve symptoms, the negative pressure flow guiding device 4 includes a bottle body 401, a liquid inlet 402 and a negative pressure interface 406 are arranged on the bottle body 401, a drainage tube 403 is connected to an end of the liquid inlet 402, one end of the drainage tube 403, which is far away from the liquid inlet 402, penetrates through a second mounting hole 1023, and a flow valve 404 is arranged on a tube body through which the drainage tube 403 penetrates.

The flow valve 404 is a rectangular sheet, a clamping opening 4041 is formed in the middle of the rectangular sheet, and the clamping opening 4041 has a structure with a large end and a small end.

In order to reduce the effusion backflow, wedge-shaped baffle plates 405 are symmetrically arranged in the drainage tube 403, the front ends of the wedge-shaped baffle plates 405 are provided with openings, and the rear ends of the wedge-shaped baffle plates 405 are tightly attached to the inner tube wall of the drainage tube 403.

In application, the negative pressure ports 406 are compressed together to display that the inside of the bottle 401 is pre-formed with negative pressure, and when the flow valve 404 controls the clamping or releasing of the drainage tube 403 through the size end of the clamping port 4041, the flow rate of the effusion is controlled.

Specifically, referring to fig. 1 and 5, in order to fix the drainage tube 403, when the pressing handle 103 is pressed, the drainage tube 403 pulls the clamping assembly to work, a hollow sleeve 8 is installed on one side of the pressing handle 103, spring sets 9 are symmetrically installed on the inner wall of the hollow sleeve 8, an arc-shaped clamping plate 10 is installed between the spring sets 9 on each side, and one end of the drainage tube 403, which is far away from the liquid inlet 402, penetrates through the second installation hole 1023 and between the pair of arc-shaped clamping plates 10.

Specifically, referring to fig. 1 and 6, in order to reduce the hair or earwax in the ear of the patient and facilitate the improvement of the examination vision of the doctor, the clamping assembly includes a mounting plate 11 mounted together with the connecting rod 6, a shaft sleeve 12 is mounted at one end of the mounting plate 11 away from the connecting rod 6, a connecting shaft 13 is slidably fitted in the shaft sleeve 12, first connecting rods 14 are symmetrically mounted at two sides of the shaft sleeve 12, an L-shaped clamping arm 15 is rotatably mounted at one end of the first connecting rod 14 away from the shaft sleeve 12, and a triangular clamping plate 16 is mounted at one end of the L-shaped clamping arm 15 away from the first connecting rod 14;

wherein, the inside hollow structure that is of connecting axle 13, the equidistance is installed anti-skidding line 1601 on the inner wall of triangle splint 16.

Wherein, the connecting shaft 13 is fixedly provided with a mounting ring 17, two sides of the mounting ring 17 are integrally provided with a second connecting rod 18, and a third connecting rod 19 is rotatably connected between the second connecting rod 18 and the L-shaped clamp arm 15;

if effusion exists in the ear canal, a conduit for sucking out effusion can be connected to the connector 4031, so that for convenience of connection of conduits with different thicknesses, one end of the drainage tube 403, which is far away from the liquid inlet 402, penetrates through the hollow sleeve 8 into the connecting shaft 13, one end of the drainage tube 403, which penetrates out of the connecting shaft 13, is integrally provided with the connector 4031, and the connector 4031 is of a stepped structure.

Wherein a spring 20 is connected between the mounting ring 17 and the bushing 12.

Wherein, in order to clean the body hair in the ear canal, the blades 21 are installed on the upper surface of the triangular clamping plate 16, a shearing area is formed between the adjacent blades 21, and the sheared body hair is sucked into the bottle body 401 under the pressure of the negative pressure flow guide device 4.

In application, the connecting shaft 13 slides to one side of the mounting plate 11 under the pulling of the drainage tube 403, the third connecting rod 19 on the connecting shaft 13 pulls the L-shaped clamp arm 15 to rotate inwards with the end part as an axis, so that the pair of triangular clamping plates 16 approach each other, thereby facilitating the cleaning of earwax clamped in the ear canal, and under the action of the spring 20, the pair of triangular clamping plates 16 are mutually reset, thereby facilitating the secondary clamping.

Specifically, referring to fig. 7, in order to clean up obstacles on the inner wall of the ear canal, a motor 22 and a slide rail seat 23 are installed inside the case 7, a first gear 24 is installed at an output end of the motor 22, a slide bar 25 is installed in the slide rail seat 23 in a sliding manner, teeth 2501 are respectively formed on two sides of the slide bar 25 along the length direction, and the first gear 24 is engaged with the teeth 2501 on one side;

a second rectangular notch 501 is formed in the side wall of one end, located in the case 7, of the hollow rod 5, a second gear 26 is installed at one end, located in the hollow rod 5, of the connecting rod 6, and the second gear 26 is meshed with the tooth 2501 on the other side.

In the application, the output end of the motor 22 drives the first gear 24 to rotate, the first gear 24 drives the slide bar 25 to move linearly in the slide rail seat 23 through the meshing connection with the slide bar 25, the moving slide bar 25 drives the second gear 26 connected with the other side in a meshing connection to rotate, and the second gear 26 drives the coaxial connecting rod 6 to rotate, so that the angle between the pair of triangular clamping plates 16 and the auditory canal can be adjusted conveniently.

The working principle is as follows:

when the device is used, a bottle body 401 is placed in the handheld portion 101 of the inspection handle 1 and the blocking plate 1012 is buckled, the drainage tube 403 sequentially penetrates through the connecting shaft 13, the hollow sleeve 8 and the second mounting hole 1023 to be connected with the liquid inlet 402 on the bottle body 401, the arc-shaped clamping plate 10 is connected in the hollow sleeve 8 through the spring group 9 to clamp and fix the drainage tube 403, the length of the drainage tube 403 between the hollow sleeve 8 and the connecting shaft 13 is kept unchanged all the time, the pressing handle 103 is pinched, the pressing handle 103 enables the connecting shaft 13 to slide to one side of the mounting plate 11 through pulling of the drainage tube 403, the third connecting rod 19 on the connecting shaft 13 pulls the L-shaped clamping arm 15 to rotate inwards with the end portion as an axis, the pair of triangular clamping plates 16 are close to each other, so that cerumen in the ear canal can be conveniently cleared, the pair of triangular clamping plates 16 are mutually reset under the action of the spring 20, so that secondary clamping is convenient, and when the pair of triangular clamping plates 16 are mutually close to each other, the blades 21 on the triangular clamping plates 16 shear body hair and suck the bottle body into the negative pressure of the flow guide device 4.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions and improvements to part of the technical features of the foregoing embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A medical otological examination apparatus, comprising:

the inspection handle (1) is of a cavity structure, the inspection handle (1) comprises a handheld portion (101) and a connecting portion (102), the bottom surface of the connecting portion (102) extends inwards to form an installation groove (1021), a first installation hole (1022) extending to the outer surface of the inspection handle (1) is formed in the inner wall of the installation groove (1021) in the connecting portion (102), a second installation hole (1023) extending to the outer surface of the inspection handle (1) is formed in the inner wall of the handheld portion (101), a pressing handle (103) is connected in the installation groove (1021) of the connecting portion (102) in a rotating mode, a first rectangular notch (1011) is formed in the bottom surface of the handheld portion (101), and a blocking plate (1012) capable of being opened and closed with the first rectangular notch (1011) is rotatably installed on the inspection handle (1) on one side of the first rectangular notch (1011) through a hinge shaft;

the negative pressure flow guide device (4), the negative pressure flow guide device (4) is installed in the handheld part (101);

the inspection subassembly, the inspection subassembly is including installing hollow rod (5) in first mounting hole (1022) of inspection handle (1) port department, rotate through the bearing in hollow rod (5) and install connecting rod (6), the centre gripping subassembly is installed to the one end that inspection handle (1) was kept away from in connecting rod (6), quick-witted case (7) are installed with handing-over department of connecting rod (6) in hollow rod (5).

2. A medical otological examination apparatus according to claim 1, characterized in that: negative pressure guiding device (4) include bottle (401), be equipped with inlet (402) and negative pressure interface (406) on bottle (401), the end connection of inlet (402) has drainage tube (403), the one end that inlet (402) were kept away from in drainage tube (403) runs through second mounting hole (1023), just drainage tube (403) run through on the pipe shaft of wearing out and install flow valve (404).

3. A medical otological examination apparatus according to claim 2, characterized in that: the flow valve (404) is a rectangular sheet-shaped body, a clamping opening (4041) is formed in the middle of the rectangular sheet-shaped body, and the clamping opening (4041) is of a structure with a large end and a small end.

4. A medical otological examination apparatus according to claim 2, characterized in that: the drainage tube (403) is internally and symmetrically provided with a wedge-shaped baffle (405), the front end of the wedge-shaped baffle (405) is provided with an opening, and the rear end of the wedge-shaped baffle (405) is tightly attached to the inner tube wall of the drainage tube (403).

5. A medical otological examination apparatus according to claim 2, characterized in that: press one side of handle (103) to install hollow cover (8), spring assembly (9) are installed to the symmetry on the inner wall of hollow cover (8), every side install arc splint (10) jointly between spring assembly (9), the one end that inlet (402) was kept away from in drainage tube (403) runs through between second mounting hole (1023) to a pair of arc splint (10).

6. A medical otological examination apparatus according to claim 1, characterized in that: the clamping assembly comprises a mounting plate (11) mounted together with a connecting rod (6), a shaft sleeve (12) is mounted at one end, away from the connecting rod (6), of the mounting plate (11), a connecting shaft (13) is arranged in the shaft sleeve (12) in a matched and sliding mode, first connecting rods (14) are symmetrically mounted on two sides of the shaft sleeve (12), an L-shaped clamping arm (15) is rotatably mounted at one end, away from the shaft sleeve (12), of each first connecting rod (14), and a triangular clamping plate (16) is mounted at one end, away from the first connecting rod (14), of each L-shaped clamping arm (15);

wherein, connecting axle (13) is inside to be hollow structure, antiskid line (1601) are installed to the equidistance on the inner wall of triangle splint (16).

7. A medical otological examination apparatus according to claim 6, characterized in that: a mounting ring (17) is fixedly arranged on the connecting shaft (13), second connecting rods (18) are integrally mounted on two sides of the mounting ring (17), and third connecting rods (19) are rotatably connected between the second connecting rods (18) and the L-shaped clamp arms (15);

wherein, the one end that drainage tube (403) kept away from inlet (402) runs through in hollow cover (8) to connecting axle (13), just drainage tube (403) run through the one end integrated into one piece formula that goes out connecting axle (13) and install connector (4031), connector (4031) is the stair structure.

8. A medical otological examination apparatus according to claim 7, characterized in that: and a spring (20) is connected between the mounting ring (17) and the shaft sleeve (12).

9. A medical otological examination apparatus according to claim 6, characterized in that: the upper surface mounting of triangle splint (16) has blade (21), and is adjacent form shearing area between blade (21).

10. A medical otological examination apparatus according to claim 1, characterized in that: a motor (22) and a sliding rail seat (23) are installed inside the case (7), a first gear (24) is installed at the output end of the motor (22), a sliding bar (25) is matched and slides in the sliding rail seat (23), teeth (2501) are arranged on two sides of the sliding bar (25) along the length direction, and the first gear (24) is meshed and connected with the teeth (2501) on one side;

the hollow rod (5) is located in the case (7), a second rectangular notch (501) is formed in the side wall of one end of the hollow rod, a second gear (26) is installed at one end of the connecting rod (6) located in the hollow rod (5), and the second gear (26) is meshed with the teeth (2501) on the other side.