CN114795806A

CN114795806A - Medical device for treating oral cavity

Info

Publication number: CN114795806A
Application number: CN202210428278.3A
Authority: CN
Inventors: 孙菁雅
Original assignee: Nantong University
Current assignee: Nantong University
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-07-29

Abstract

The invention discloses a medical device for treating oral cavity, comprising: the device comprises a first supporting plate, a limiting structure, an oral cavity supporting structure and a medicine spraying structure; the limiting structure is arranged on the first supporting plate, and the oral cavity supporting structure and the pesticide spraying structure are both arranged on the limiting structure; the limiting structure is used for limiting and fixing the head of the human body, so that the oral cavity of the human body is prevented from being closed randomly in the treatment process; wherein, the medicine spraying structure is used for spraying medicine treatment to the oral cavity of the human body; wherein, limit structure includes the spacing groove, the inside swing joint of spacing groove has two-way lead screw, the one end of two-way lead screw runs through the outer wall of first backup pad can carry out the suction to the liquid in the cotton that absorbs water through starting miniature suction pump cooperation collecting hopper simultaneously, and the liquid discharge in the cotton that will absorb water from the outside guarantees the cotton hydroscopicity that lasts that absorbs water, and the waste liquid of suction simultaneously can be filtered through the filter screen and then emits into the waste material box in, is convenient for to the recovery of waste liquid, improves patient oral treatment's travelling comfort.

Description

Medical device for treating oral cavity

Technical Field

The invention relates to the technical field of medical instruments, in particular to a medical device for treating oral cavity.

Background

With the popularization of oral treatment technology and the improvement of oral health requirements of people, more and more patients choose to implant and repair missing teeth or carry out root canal treatment on affected teeth. The oral treatment operation is precise operation in a narrow space, and when tooth implantation or root canal treatment is carried out, the convenience of surgical instruments is a key target for success of the operation.

Mostly bear the weight of the human body through the deck chair among the medical device of current treatment oral cavity, and clean the treatment to human oral cavity or tooth through other mechanical equipment, at present treatment process, do not fix human head mostly, and the human body is under the state of lying, the inside sputum that produces of oral cavity trickles easily and goes into the throat, let the patient produce the vomiting easily, and provide the apparatus and carry out treatment process, the condition in apparatus damage oral cavity takes place easily under the condition of human head if taking place the disorder, for this reason, provide a medical device of treatment oral cavity.

Disclosure of Invention

The present invention is directed to a medical device for treating the oral cavity to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: a medical device for treating an oral cavity, comprising: the device comprises a first supporting plate, a limiting structure, an oral cavity supporting structure and a medicine spraying structure;

the limiting structure is arranged on the first supporting plate, and the oral cavity supporting structure and the pesticide spraying structure are both arranged on the limiting structure;

the limiting structure is used for limiting and fixing the head of the human body, and the stability of the head of the human body on the first supporting plate is ensured;

the oral cavity supporting structure is used for supporting and clamping the oral cavity of a human body, so that the oral cavity of the human body is prevented from being closed randomly in the treatment process;

wherein, the medicine spraying structure is used for spraying medicine treatment to the oral cavity of the human body;

wherein, limit structure includes the spacing groove, the inside swing joint of spacing groove has two-way lead screw, the one end of two-way lead screw runs through the outer wall of first backup pad, swing joint has two first sliders on the two-way lead screw, one fixed mounting has first fixed box, another of bearing on the first slider fixed mounting has the second to bear fixed box on the first slider, the second bears the internally mounted of fixed box and has waste liquid suction structure, the outside swing joint of first backup pad has the joint structure.

Preferably, oral cavity bearing structure includes a metal forming hose, a metal forming hose fixed mounting in the first outside of bearing fixed box, a metal forming hose is kept away from a first one end fixed mounting who bears fixed box has the gum clamp, the gum clamp is two semicircle hollow hose through the torsional spring installation, the internally mounted of gum clamp has the LED fluorescent tube, the externally mounted of gum clamp has a plurality of UV lamp pearls.

Preferably, the pesticide spraying structure comprises an atomizer, the atomizer is fixedly installed inside the first bearing fixing box, a pesticide containing box is fixedly installed inside the first bearing fixing box, a second supporting plate is fixedly installed inside the pesticide containing box, a dry ice containing box is arranged on the second supporting plate, a micro motor is fixedly installed outside the first bearing fixing box, an output shaft of the micro motor penetrates through the outer wall of the pesticide containing box, a stirring rod is fixedly installed on the output shaft of the micro motor, a water inlet of the atomizer is communicated with a water delivery pipe, one end, away from the atomizer, of the water delivery pipe is inserted into the pesticide containing box, a water outlet of the atomizer is communicated with a pesticide delivery hose, one end, away from the atomizer, of the pesticide delivery hose penetrates through the outer wall of the first bearing fixing box and is communicated with an annular pesticide delivery pipe, the annular pesticide delivery pipe is fixedly installed inside the gum clamp, a plurality of medicine conveying holes are formed in the outer portions of the annular medicine conveying pipe and the gum clamping hoop.

Preferably, the waste liquid suction structure includes the cotton that absorbs water, the cotton that absorbs water bond in the outside of gum clamp, the inside fixed mounting that the second bore fixed box has miniature suction pump, the inside that the second bore fixed box is provided with waste material box, the liquid outlet of miniature suction pump with waste material box is linked together, the liquid outlet intercommunication of miniature suction pump has the suction tube, the one end of suction tube runs through the second bears the outer wall of fixed box, the outside fixed mounting that the second bore fixed box has second metal forming hose, the suction tube is located the inside of second metal forming hose, second metal forming hose is kept away from the one end intercommunication that the second bore fixed box has the filter box, the outside intercommunication collecting hopper of filter box, the inside fixed mounting of filter box has a plurality of filter screens.

Preferably, the clamping structure includes a plurality of spouts, the spout is seted up in the outside of first backup pad, the inside swing joint of spout has the second slider, the outside fixed mounting of second slider has the extension spring, the outside fixed mounting of second slider has the limiting plate.

Preferably, the width of the inner wall of the sliding groove is larger than the diameter of the outer wall of the second sliding block, and the second sliding block is slidably connected to the inside of the sliding groove.

Preferably, one end of the bidirectional screw rod is rotatably connected inside the limiting groove through a bearing, and the other end of the bidirectional screw rod is fixedly provided with a knob.

Preferably, the first sliding block is in threaded connection with the bidirectional screw rod.

Preferably, the diameter of the outer wall of the first sliding block is smaller than the width of the inner wall of the limiting groove, and the first sliding block is connected to the inside of the limiting groove in a sliding mode.

Preferably, the first bearing fixed box and the second bearing fixed box are hinged to a door body through hinge pins.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the gum clamp is convenient to support the oral cavity of a human body, the oral cavity of the human body is prevented from being closed at will, meanwhile, the LED lamp tube arranged in the gum clamp can illuminate the oral cavity of the human body from the inside, the treatment convenience is enhanced, meanwhile, the arrangement of the UV lamp beads can inhibit bacteria breeding in the oral cavity of the human body, and the breeding of the bacteria in the treatment process is reduced;

according to the invention, after treatment is finished, medical staff can convey the medicine in the medicine containing box into the medicine conveying hose by starting the atomizer, and the medicine is conveyed into the oral cavity of a human body through the medicine conveying hole by matching with the gum clamp and the annular medicine conveying pipe, and the medicine is cooled through the dry ice containing box when in the medicine containing box, so that the pain relieving effect is achieved through the medicine at a lower temperature; meanwhile, the micro motor can be started to drive the stirring rod to rotate, so that the medicines are stirred, and the medicines are convenient to mix;

according to the invention, through the arrangement of the water-absorbing cotton, after the gum clamp is placed in the oral cavity of a human body, the water-absorbing cotton can absorb saliva or external liquid medicine generated by the human body, so that the phenomenon that the patient vomits due to the fact that a large amount of saliva or liquid medicine is accumulated and flows back is avoided, meanwhile, the liquid in the water-absorbing cotton can be sucked out by starting the miniature suction pump and matching with the liquid collecting hopper, the liquid in the water-absorbing cotton is discharged from the outside, the continuous water absorption of the water-absorbing cotton is ensured, meanwhile, the sucked-out waste liquid can be discharged into the waste liquid box after being filtered by the filter screen, the waste liquid is convenient to recycle, and the comfort of oral treatment of the patient is improved.

Drawings

FIG. 1 is a schematic view of a medical device for treating the oral cavity according to the present invention;

FIG. 2 is a schematic view of a medical device for treating oral cavity according to the present invention;

FIG. 3 is a schematic cross-sectional view of a first load-bearing fixing box of the medical device for treating oral cavity according to the present invention;

FIG. 4 is a schematic cross-sectional view of a second load-bearing fixing box of the medical device for treating oral cavity according to the present invention;

FIG. 5 is a schematic cross-sectional view of a filter cartridge of the medical device for treating oral cavity according to the present invention;

FIG. 6 is a schematic view of the structure of the absorbent cotton in the medical device for treating oral cavity according to the present invention;

FIG. 7 is a schematic view, partially in section, of a gingival band of the medical device for treating oral cavity of the present invention;

fig. 8 is a schematic structural diagram of a second slide block in the medical device for treating the oral cavity according to the invention.

In the figure: 10. a first support plate; 11. a limiting groove; 12. a bidirectional screw rod; 13. a knob; 14. a first slider; 15. a first load-bearing fixing box; 16. a second load-bearing securing box; 20. an atomizer; 21. a medicine containing box; 22. a water delivery pipe; 23. a second support plate; 24. a dry ice containing box; 25. a micro motor; 26. a stirring rod; 27. a drug delivery hose; 28. a first metal sizing hose; 29. a gum clamp; 30. absorbent cotton; 31. a door body; 32. an LED lamp tube; 33. an annular drug delivery tube; 34. a medicine delivery hole; 35. UV lamp beads; 40. a chute; 41. a limiting plate; 42. a second slider; 43. a tension spring; 50. a waste material box; 51. a micro suction pump; 52. a second metal sizing hose; 53. a filter cartridge; 54. a liquid collecting hopper; 55. filtering with a screen; 56. a suction pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution:

a medical device for treating an oral cavity, comprising: the device comprises a first supporting plate 10, a limiting structure, an oral cavity supporting structure and a medicine spraying structure;

wherein, the limit structure is arranged on the first support plate 10, and the oral cavity support structure and the pesticide spraying structure are both arranged on the limit structure;

the limiting structure is used for limiting and fixing the head of the human body, and the stability of the head of the human body on the first supporting plate 10 is ensured;

wherein, limit structure includes spacing groove 11, the inside swing joint of spacing groove 11 has two-way lead screw 12, the outer wall of first backup pad 10 is run through to the one end of two-way lead screw 12, swing joint has two first sliders 14 on the two-way lead screw 12, fixed mounting has first fixed box 15 that bears on one first slider 14, fixed mounting has the second to bear fixed box 16 on another first slider 14, the internally mounted that the second bore fixed box 16 has waste liquid suction structure, the outside swing joint of first backup pad 10 has the joint structure.

In the above technical scheme, a user can rotate the bidirectional screw rod 12, the rotation of the bidirectional screw rod 12 can drive the first bearing fixing box 15 and the second bearing fixing box 16 to adjust the relative position, the relative position adjustment before the first bearing fixing box 15 and the second bearing fixing box 16 can clamp and limit the head of a human body, and the head of the human body is prevented from being randomly disturbed in the treatment process to cause injury.

As shown in fig. 1-6, the composition of the oral support structure: oral cavity bearing structure includes first metal forming hose 28, and first metal forming hose 28 fixed mounting has a gum clamp 29 in the first outside that bears fixed box 15, and first metal forming hose 28 keeps away from the first one end fixed mounting that bears fixed box 15, and gum clamp 29 is two semicircle hollow hose through the torsional spring installation, and the internally mounted of gum clamp 29 has LED fluorescent tube 32, and the externally mounted of gum clamp 29 has a plurality of UV lamp pearls 35.

As shown in fig. 1-6, the principle of the oral support structure: among the oral cavity bearing structure, support gum clamp 29 through first metal design hose 28, the medical personnel of being convenient for adjust gum clamp 29 to arbitrary position, inside a plurality of LED fluorescent tubes 32 at the internally mounted of gum clamp 29 are convenient for illuminate human oral cavity, and the medical personnel of being convenient for are to the treatment of oral cavity inside, and the bacterium that multiplies suppresses, reduces multiplying of bacterium among the treatment process simultaneously UV lamp pearl 35.

As shown in fig. 1-3, the composition of the pesticide spraying structure is as follows: the pesticide spraying structure comprises an atomizer 20, the atomizer 20 is fixedly arranged inside a first bearing fixed box 15, a pesticide containing box 21 is fixedly arranged inside the first bearing fixed box 15, a second supporting plate 23 is fixedly arranged inside the pesticide containing box 21, a dry ice containing box 24 is arranged on the second supporting plate 23, a micro motor 25 is fixedly arranged outside the first bearing fixed box 15, an output shaft of the micro motor 25 penetrates through the outer wall of the pesticide containing box 21, an output shaft of the micro motor 25 is fixedly provided with a stirring rod 26, a water inlet of the atomizer 20 is communicated with a water conveying pipe 22, one end of the water conveying pipe 22 far away from the atomizer 20 is inserted into the pesticide containing box 21, a water outlet of the atomizer 20 is communicated with a pesticide conveying hose 27, one end of the pesticide conveying hose 27 far away from the atomizer 20 penetrates through the outer wall of the first bearing fixed box 15 and is communicated with an annular pesticide conveying pipe 33, the annular pesticide conveying pipe 33 is fixedly arranged inside a gum clamp 29, a plurality of medicine conveying holes 34 are formed in the outer portions of the annular medicine conveying pipe 33 and the gum clamping hoop 29.

As shown in fig. 1 to 3, the principle of the spraying structure: the medical staff can convey the medicine in the medicine containing box 21 into the medicine conveying hose 27 by starting the atomizer 20, and the medicine is conveyed into the oral cavity of the human body through the medicine conveying hole 34 by matching with the gum clamp 29 and the annular medicine conveying pipe 33, and the medicine is cooled through the dry ice containing box 24 when in the medicine containing box 21, so that the pain relieving effect is achieved through the medicine at the lower temperature; meanwhile, the micro motor 25 can be started to drive the stirring rod 26 to rotate, so that the medicines are stirred, and the medicines are conveniently mixed.

As shown in fig. 4 to 6, the composition of the waste liquid suction structure: the waste liquid suction structure comprises water absorption cotton 30, the water absorption cotton 30 is adhered to the outer portion of the gum clamp 29, a miniature suction pump 51 is fixedly mounted inside the second bearing fixing box 16, a waste material box 50 is arranged inside the second bearing fixing box 16, a liquid outlet of the miniature suction pump 51 is communicated with the waste material box 50, a suction pipe 56 is communicated with a liquid outlet of the miniature suction pump 51, one end of the suction pipe 56 penetrates through the outer wall of the second bearing fixing box 16, a second metal shaping hose 52 is fixedly mounted outside the second bearing fixing box 16, the suction pipe 56 is located inside the second metal shaping hose 52, one end, far away from the second bearing fixing box 16, of the second metal shaping hose 52 is communicated with a filter box 53, a liquid collecting hopper 54 is communicated with the outside of the filter box 53, and a plurality of filter screens 55 are fixedly mounted inside the filter box 53.

As shown in fig. 4 to 6, the principle of the waste liquid suction structure: in the waste liquid suction structure, through the setting of cotton 30 that absorbs water, inside back in human oral cavity is placed to gum clamp 29, cotton 30 that absorbs water can adsorb the saliva or the outside liquid medicine of human production, avoid saliva or liquid medicine to pile up the backward flow in a large number and cause the patient to vomit, simultaneously can carry out the suction to the liquid in the cotton 30 that absorbs water through starting miniature suction pump 51 cooperation collecting hopper 54, the liquid discharge in the cotton 30 that absorbs water from the outside, guarantee the cotton 30 that absorbs water's continuous hydroscopicity, the waste liquid of suction can filter the back through filter screen 55 and discharge into in waste material box 50 simultaneously, be convenient for to the recovery of waste liquid, improve patient oral treatment's travelling comfort.

In order to facilitate the protection of the first bearing fixed box 15 and the second bearing fixed box 16, the first bearing fixed box 15 and the second bearing fixed box 16 are hinged to a door body 31 through a pin shaft.

As shown in fig. 2 and 8, the clamping structure is composed of: the clamping structure comprises a plurality of sliding grooves 40, the sliding grooves 40 are arranged outside the first supporting plate 10, a second sliding block 42 is movably connected inside the sliding grooves 40, a tension spring 43 is fixedly arranged outside the second sliding block 42, and a limiting plate 41 is fixedly arranged outside the second sliding block 42.

As shown in fig. 2 and 8, the principle of the snap structure is as follows: the second slider 42 connected by the tension spring 43 in the clamping structure can drive the limiting plate 41 to generate resilience, so that the first supporting plate 10 can be clamped to the reclining chair by matching the limiting plate 41.

In order to rotate the bidirectional screw 12, a knob 13 is fixedly mounted at the other end of the bidirectional screw 12, and the knob 13 drives the bidirectional screw 12 to rotate.

According to the technical scheme, the working steps of the scheme are summarized and carded: in the using process, the patient's head is placed between the first bearing fixing box 15 and the second bearing fixing box 16 after the placing is completed, the two-way screw rod 12 is rotated through the knob 13, the first bearing fixing box 15 and the second bearing fixing box 16 are driven to adjust the position through the rotation of the two-way screw rod 12, so that the head of the patient is limited, after the limiting is completed, the medical personnel can clamp the gum clamp 29 on the gum of the human body, in the treatment process, the inside of the oral cavity of the human body can be conveniently illuminated by starting the LED lamp tube 32, the gum clamp 29 is made of a transparent acrylic plate, the inside of the oral cavity of the human body is convenient for the medical personnel to treat the inside of the oral cavity, meanwhile, the arrangement of the UV lamp bead 35 inhibits the breeding bacteria, and reduces the breeding of the bacteria in the treatment process, in the treatment process, through the arrangement of the absorbent cotton 30, the absorbent cotton 30 can absorb saliva or external liquid medicine generated by a human body, the phenomenon that the saliva or the liquid medicine is accumulated in a large amount and flows back to cause vomiting of a patient is avoided, meanwhile, the liquid in the absorbent cotton 30 can be sucked out by starting the micro suction pump 51 and matching with the liquid collecting hopper 54, the liquid in the absorbent cotton 30 is discharged from the outside, the continuous water absorption of the absorbent cotton 30 is ensured, meanwhile, the sucked waste liquid is discharged into the waste liquid box 50 after being filtered by the filter screen 55, the waste liquid is convenient to recycle, the comfort of oral treatment of the patient is improved, in the medicine applying process after the treatment is finished, the medicine can be poured into the medicine containing box 21, after the medicine is positioned in the medicine containing box 21, the micro motor 25 is started to drive the stirring rod 26 to rotate, so that the medicine is stirred, the medicine is convenient to mix, after the mixing is finished, the medicine in the medicine containing box 21 is conveyed into the medicine conveying hose 27 by starting the atomizer 20, and cooperate gum clamp 29 and annular medicine conveying pipe 33 to carry the medicine inside human oral cavity through medicine conveying hole 34, and the medicine holds box 24 through the dry ice and cools down when the inside of flourishing medicine box 21, and the medicine spraying after the atomizing can play the analgesia effect through lower temperature.

The parts not involved in the present invention are the same as or can be implemented by the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A medical device for treating an oral cavity, comprising: the device comprises a first supporting plate (10), a limiting structure, an oral cavity supporting structure and a medicine spraying structure;

wherein, the limit structure is arranged on the first support plate (10), and the oral cavity support structure and the pesticide spraying structure are both arranged on the limit structure;

the limiting structure is used for limiting and fixing the head of a human body, and the stability of the head of the human body on the first supporting plate (10) is ensured;

wherein, limit structure includes spacing groove (11), the inside swing joint of spacing groove (11) has two-way lead screw (12), the one end of two-way lead screw (12) is run through the outer wall of first backup pad (10), swing joint has two first sliders (14), one on two-way lead screw (12) fixed mounting has first fixed box (15) of bearing, another fixed mounting has the second to bear fixed box (16) on first slider (14), the internally mounted that the second bore fixed box (16) has the waste liquid suction structure, the outside swing joint of first backup pad (10) has the joint structure.

2. The medical device for treating the oral cavity according to claim 1, wherein: oral cavity bearing structure includes first metal forming hose (28), first metal forming hose (28) fixed mounting in the first outside of bearing fixed box (15), first metal forming hose (28) are kept away from the first one end fixed mounting who bears fixed box (15) has gum clamp (29), gum clamp (29) are two semicircle hollow hose through the torsional spring installation, the internally mounted of gum clamp (29) has LED fluorescent tube (32), the externally mounted of gum clamp (29) has a plurality of UV lamp pearls (35).

3. The medical device for treating the oral cavity according to claim 2, wherein: the pesticide spraying structure comprises an atomizer (20), the atomizer (20) is fixedly installed inside a first bearing fixing box (15), a pesticide containing box (21) is fixedly installed inside the first bearing fixing box (15), a second supporting plate (23) is fixedly installed inside the pesticide containing box (21), a dry ice containing box (24) is arranged on the second supporting plate (23), a micro motor (25) is fixedly installed outside the first bearing fixing box (15), an output shaft of the micro motor (25) penetrates through the outer wall of the pesticide containing box (21), an output shaft of the micro motor (25) is fixedly installed with a stirring rod (26), a water inlet of the atomizer (20) is communicated with a water conveying pipe (22), one end, far away from the atomizer (20), of the water conveying pipe (22) is inserted into the pesticide containing box (21), a water outlet of the atomizer (20) is communicated with a pesticide conveying hose (27), defeated medicine hose (27) are kept away from the one end of atomizer (20) is run through the outer wall and the intercommunication of first fixed box (15) of bearing has annular defeated medicine pipe (33), annular defeated medicine pipe (33) fixed mounting in the inside of gum clamp (29), annular defeated medicine pipe (33) with a plurality of defeated medicine holes (34) have all been seted up to the outside of gum clamp (29).

4. A medical device for treating the oral cavity according to claim 3, wherein: the waste liquid suction structure comprises water-absorbing cotton (30), the water-absorbing cotton (30) is adhered to the outer part of the gum clamp (29), a miniature suction pump (51) is fixedly arranged in the second bearing fixing box (16), a waste material box (50) is arranged in the second bearing fixing box (16), a liquid outlet of the miniature suction pump (51) is communicated with the waste material box (50), a suction pipe (56) is communicated with a liquid outlet of the miniature suction pump (51), one end of the suction pipe (56) penetrates through the outer wall of the second bearing fixing box (16), a second metal shaping hose (52) is fixedly arranged in the outer part of the second bearing fixing box (16), the suction pipe (56) is positioned in the second metal shaping hose (52), and one end, far away from the second bearing fixing box (16), of the second metal shaping hose (52) is communicated with a filter box (53), the outside of filter box (53) communicates collecting hopper (54), the inside fixed mounting of filter box (53) has a plurality of filter screens (55).

5. The medical device for treating the oral cavity according to claim 1, wherein: the joint structure includes a plurality of spout (40), spout (40) are seted up in the outside of first backup pad (10), the inside swing joint of spout (40) has second slider (42), the outside fixed mounting of second slider (42) has extension spring (43), the outside fixed mounting of second slider (42) has limiting plate (41).

6. The medical device for treating the oral cavity according to claim 5, wherein: the inner wall width of the sliding groove (40) is larger than the outer wall diameter of the second sliding block (42), and the second sliding block (42) is connected to the inside of the sliding groove (40) in a sliding mode.

7. The medical device for treating the oral cavity according to claim 1, wherein: one end of the bidirectional screw rod (12) is rotatably connected inside the limiting groove (11) through a bearing, and the other end of the bidirectional screw rod (12) is fixedly provided with a knob (13).

8. The medical device for treating the oral cavity according to claim 1, wherein: the first sliding block (14) is connected to the bidirectional screw rod (12) in a threaded mode.

9. The medical device for treating the oral cavity according to claim 1, wherein: the diameter of the outer wall of the first sliding block (14) is smaller than the width of the inner wall of the limiting groove (11), and the first sliding block (14) is connected to the inside of the limiting groove (11) in a sliding mode.

10. The medical device for treating the oral cavity according to claim 1, wherein: the first bearing fixing box (15) and the second bearing fixing box (16) are hinged to a door body (31) through hinge pins.