Oral cavity dilator

Abstract

According to the technical scheme, the oral cavity dilator is characterized in that the oral cavity dilator comprises a main body, a first side opening is formed in one side of the main body, a first fixing frame is fixedly connected to the top of the first side opening, and a first supporting plate is rotationally connected to the first fixing frame; when the oral cavity of the patient needs to be opened, a worker can rotate a rotating shaft, the rotating shaft rotates, the position of a first supporting plate can be rotated through an opening structure, the first supporting plate rotates with a first fixing frame as the rotating circle center, and the upper jaw or the lower jaw of the patient is made to be away from the main body; meanwhile, the fixing structure arranged after the rotating shaft rotates can fix the angle of the rotating shaft after the rotating shaft rotates, and the problem that after the oral cavity of the patient is opened, due to discomfort and relaxation, the first supporting plate is reset, and oral cavity opening fails is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an oral cavity spreader. Background Art

[0002] The oral cavity is the starting part of the digestive tract. It is connected to the outside world through the fissure in the front and connected to the pharynx through the isthmus in the back. There are organs such as teeth and tongue in the oral cavity. The front wall of the oral cavity is the lip, the side wall is the cheek, the top is the palate, and the floor of the oral cavity is the mucosa and muscle structures. The oral cavity is divided into the oral vestibule in the anterior and lateral part and the proper oral cavity in the posterior and medial part by the upper and lower dental arches; when the upper and lower teeth are occluded, the oral vestibule and the proper oral cavity can communicate through the gap behind the third molar. In clinical practice, when the patient's teeth are tightly closed, an opener or intubation can be placed through this channel to inject drugs or nutrients, while preventing tongue bites.

[0003] For some patients, an oral retractor is needed to open the patient's mouth for later cleaning. However, the oral retractor in the prior art can only open the oral cavity on both sides. For some patients with lesions in the upper or lower jaw, if the oral retractor is used on both sides, the patient may easily feel extremely uncomfortable. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides an oral retractor, which solves the problem that the oral retractor in the prior art can only open the oral cavity on both sides, and for some patients with lesions in the upper or lower jaw, if bilateral opening is performed, the patients may easily feel extremely uncomfortable.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] An oral retractor comprises a main body, a first side opening is formed on one side of the main body, a first fixing frame is fixedly connected to the top of the first side opening, a first support plate is rotatably connected to the first fixing frame, a groove adapted to the patient's teeth is formed on one side of the first support plate, a holding rod is fixedly connected to the bottom of the main body, a rotating shaft is rotatably connected to the holding rod, a retracting structure for rotating the support plate is provided on the main body, the retracting structure can rotate the position of the first support plate after the rotating shaft is rotated, and a fixing structure for fixing the rotation angle of the rotating shaft is provided on the holding rod.

[0007] By setting up the main body, when in use, the staff can extend the main body into the patient's mouth to allow the patient's teeth to be in the grooves. When the patient's mouth needs to be stretched, the staff can rotate the shaft. The rotation of the shaft can use the stretching structure to rotate the position of the first support plate, so that the first support plate rotates with the first fixed frame as the center of rotation, and the patient's upper jaw or lower jaw is moved away from the main body, thereby achieving the effect of unilaterally stretching the patient's upper jaw or lower jaw. At the same time, the fixed structure set after the rotation of the shaft can fix the angle of the shaft after rotation, thereby avoiding the problem of failure of the oral stretching caused by the first support plate being reset after the patient's mouth is stretched due to discomfort and relaxation.

[0008] Preferably, the support structure includes a first rotating cavity opened on one side of the first side opening, a first rotating rod is rotatably connected to the inner side of the main body, one end of the first rotating rod extends into the first rotating cavity and is fixedly connected to a first paddle, the other end of the first rotating rod is fixedly connected to a first bevel gear, and the top of the rotating shaft is fixedly connected to a second bevel gear meshing with the first bevel gear.

[0009] By setting the first bevel gear, when the staff rotates the shaft, the rotation of the shaft can rotate the position of the first rotating rod through the second bevel gear and the first bevel gear. The rotation of the first rotating rod can rotate the first paddle, so that the first paddle touches the position of the first support plate, thereby achieving the effect of rotating the position of the first support plate.

[0010] Preferably, a second side opening is opened on one side of the main body, a second fixing frame is fixedly connected to the top of the second side opening, a second support plate is rotatably connected to the second fixing frame, a second rotating cavity is opened in the second side opening, a second rotating rod is rotatably connected to one side of the main body, one end of the second rotating rod is fixedly connected to a third bevel gear matched with the second bevel gear, one end of the second rotating rod is connected to a connecting rod, the connecting rod extends into the second rotating cavity and is fixedly connected to a second paddle.

[0011] By setting a second rotating rod, when the staff rotates the rotating shaft, the rotation of the rotating shaft can drive the second rotating rod to rotate through the second bevel gear and the third bevel gear. The rotation of the second rotating rod can drive the second paddle to touch the position of the second support plate through the connecting rod, so that the second support plate can be rotated. When the first support plate rotates to support the upper jaw, the second support plate can rotate to support the lower jaw, thereby achieving the effect of opening the oral cavity on both sides.

[0012] Preferably, a limiting groove is provided on one side of the second rotating rod, one end of the connecting rod is fixedly connected to a limiting rod slidably mounted on the limiting groove, one end of the connecting rod is fixedly connected to a first magnet, one end of the second rotating rod is fixedly connected to a second magnet, and a first spring is connected between the limiting rod and the limiting groove.

[0013] By setting the second magnet, in the initial state, the third bevel gear and the second bevel gear are in a meshing state. In this state, rotating the shaft can rotate the first rotating rod and the second rotating rod to open the mouth on both sides. When only one side of the mouth needs to be opened, the staff can move the position of the second rotating rod so that the second rotating rod is close to the connecting rod, allowing the first magnet and the second magnet to be magnetically attracted and the third bevel gear and the second bevel gear to be disengaged. In this way, the position of the second rotating rod can be fixed, so that the second rotating rod is not interfered with when the shaft rotates, and the effect of only needing to open one side of the mouth can be achieved.

[0014] Preferably, the fixing structure includes a first gear fixedly sleeved on the outside of the rotating shaft, a fixing rod fixedly connected to the top of the holding rod, a second gear rotatably sleeved on the outside of the fixing rod that meshes with the first gear, a ratchet fixedly connected to the top of the second gear, a top cover connected to the top of the fixing rod, and a plurality of ratchet pawls adapted to the ratchet rotatably connected to the inner side wall of the top cover.

[0015] By setting the first gear, when the shaft rotates, the rotation of the shaft can drive the first gear to rotate, and the rotation of the first gear can rotate the position of the second gear and the ratchet. The pawl set after the ratchet rotates can limit the position of the ratchet and prevent the ratchet from reversing, thereby achieving the angle of the fixed shaft after rotation, avoiding the problem of the patient's upper and lower jaws applying force to cause the first support plate and the second support plate to be reset.

[0016] Preferably, the top of the fixing rod is fixedly connected to a first support rod, the top of the first support rod is fixedly connected to a positioning rod, the inner top surface of the top cover is fixedly connected to a second support rod, the bottom of the second support rod is provided with a positioning groove slidably connected to the positioning rod, and a second spring is connected between the first support rod and the second support rod.

[0017] By setting up a second support rod, when it is necessary to relax the patient's mouth, the staff can lift the top cover upwards, so that the second support rod moves upwards to stretch the second spring, and the pawl leaves the ratchet. At this time, the ratchet no longer reels in the line and can rotate in the opposite direction, thereby resetting the positions of the first support plate and the second support plate, thereby achieving the effect of relaxing the patient's mouth.

[0018] Preferably, a rotating disk is fixedly connected to the bottom of the rotating shaft, and the rotating disk is located at the bottom of the holding rod.

[0019] By setting up a turntable, it is possible for the staff to conveniently rotate the position of the shaft.

[0020] Preferably, a fixed tube is fixedly connected to one side of the interior of the main body, and the first rotating rod, the second rotating rod and the rotating shaft are rotatably connected to the fixed tube.

[0021] By providing the fixing tube, the positions of the first rotating rod, the second rotating rod and the rotating shaft can be restricted, which can increase the stability of the three during rotation.

[0022] In summary, the present invention mainly has the following beneficial effects:

[0023] By setting up the main body, when in use, the staff can extend the main body into the patient's mouth to allow the patient's teeth to be in the grooves. When the patient's mouth needs to be stretched, the staff can rotate the shaft. The rotation of the shaft can use the stretching structure to rotate the position of the first support plate, so that the support plate rotates with the fixed frame as the center of rotation, and the patient's upper jaw or lower jaw is moved away from the main body, thereby achieving the effect of unilaterally stretching the patient's upper jaw or lower jaw. At the same time, the fixed structure set after the rotation of the shaft can fix the angle of the shaft after rotation, thereby avoiding the problem of failure of the oral stretching due to the first support plate being reset after the patient's mouth is stretched due to discomfort and relaxation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an oral cavity retractor of the present invention;

[0025] Figure 2 It is a schematic diagram of the main structure of an oral retractor of the present invention;

[0026] Figure 3 It is a schematic diagram of the first side opening structure of an oral retractor of the present invention;

[0027] Figure 4 It is a schematic diagram of the second side opening structure of an oral retractor of the present invention;

[0028] Figure 5 It is a schematic diagram of a holding rod structure of an oral retractor of the present invention;

[0029] Figure 6 It is a schematic diagram of a connecting rod structure of an oral retractor of the present invention;

[0030] Figure 7 It is a schematic diagram of the top cover structure of an oral retractor of the present invention;

[0031] Figure 8 It is a cross-sectional schematic diagram of a top cover structure of an oral retractor of the present invention;

[0032] Fig. 9 The present invention is a schematic diagram of a positioning rod structure of an oral retractor.

[0033] Reference numerals: 100, main body; 101, first side opening; 102, first fixing frame; 103, first support plate; 104, holding rod; 105, rotating shaft; 200, first rotating cavity; 201, first rotating rod; 202, first paddle; 203, first bevel gear; 204, second bevel gear; 205, second side opening; 206, second fixing frame; 207, second support plate; 208, second rotating cavity; 209, second rotating rod; 210, third bevel gear; 211, connecting rod; 212, second paddle; 300, limiting groove; 301, limiting rod; 302, first magnet; 303, second magnet; 304, first spring; 305, fixing tube; 400, first gear; 401, fixing rod; 402, second gear; 403, ratchet; 404, top cover; 405, pawl; 406, first support rod; 407, positioning rod; 408, second support rod; 409, positioning groove; 410, second spring; 500, turntable. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] refer to Figure 1-Figure 9 , an oral retractor, comprising a main body 100, a first side opening 101 is opened on one side of the main body 100, a first fixing frame 102 is fixedly connected to the top of the first side opening 101, a first support plate 103 is rotatably connected to the first fixing frame 102, a groove adapted to the patient's teeth is opened on one side of the first support plate 103, a holding rod 104 is fixedly connected to the bottom of the main body 100, a rotating shaft 105 is rotatably connected to the holding rod 104, a retracting structure for rotating the support plate is provided on the main body 100, the retracting structure can rotate the position of the first support plate 103 after the rotating shaft 105 is rotated, and a fixing structure for fixing the rotation angle of the rotating shaft 105 is provided on the holding rod 104;

[0037] By setting the main body 100, when in use, the staff can extend the main body 100 into the patient's mouth to allow the patient's teeth to be in the grooves. When the patient's mouth needs to be stretched, the staff can rotate the shaft 105. The rotation of the shaft 105 can use the stretching structure to rotate the position of the first support plate 103, so that the first support plate 103 rotates with the first fixed frame 102 as the rotation center, and the patient's upper jaw or lower jaw is moved away from the main body 100, thereby achieving the effect of unilaterally stretching the patient's upper jaw or lower jaw. At the same time, the fixed structure set after the rotation of the shaft 105 can fix the angle of the shaft 105 after rotation, thereby avoiding the problem of failure of the oral stretching due to the first support plate 103 being reset after the patient's mouth is stretched due to discomfort and relaxation.

[0038] As a further solution of the present invention, the support structure includes a first rotating cavity 200 opened on one side of the first side opening 101, a first rotating rod 201 is rotatably connected to one side of the interior of the main body 100, one end of the first rotating rod 201 extends into the first rotating cavity 200 and is fixedly connected to a first paddle 202, the other end of the first rotating rod 201 is fixedly connected to a first bevel gear 203, and the top of the rotating shaft 105 is fixedly connected to a second bevel gear 204 meshing with the first bevel gear 203;

[0039] By setting the first bevel gear 203, when the staff rotates the rotating shaft 105, the rotation of the rotating shaft 105 can rotate the position of the first rotating rod 201 through the second bevel gear 204 and the first bevel gear 203. The rotation of the first rotating rod 201 can rotate the first paddle 202, so that the first paddle 202 touches the position of the first support plate 103, thereby achieving the effect of rotating the position of the first support plate 103.

[0040] As a further solution of the present invention, a second side opening 205 is opened on one side of the main body 100, a second fixing frame 206 is fixedly connected to the top of the second side opening 205, a second support plate 207 is rotatably connected to the second fixing frame 206, a second rotating cavity 208 is opened in the second side opening 205, a second rotating rod 209 is rotatably connected to one side of the main body 100, a third bevel gear 210 adapted to the second bevel gear 204 is fixedly connected to one end of the second rotating rod 209, a connecting rod 211 is connected to one end of the second rotating rod 209, the connecting rod 211 extends into the second rotating cavity 208 and is fixedly connected to a second paddle 212;

[0041] By setting the second rotating rod 209, when the staff rotates the rotating shaft 105, the rotation of the rotating shaft 105 can drive the second rotating rod 209 to rotate through the second bevel gear 204 and the third bevel gear 210. The rotation of the second rotating rod 209 can drive the second paddle 212 to touch the position of the second support plate 207 through the connecting rod 211, so that the second support plate 207 can be rotated. When the first support plate 103 rotates to support the upper jaw, the second support plate 207 rotates to support the lower jaw, thereby achieving the effect of opening the oral cavity on both sides.

[0042] As a further solution of the present invention, a limiting groove 300 is provided on one side of the second rotating rod 209, one end of the connecting rod 211 is fixedly connected to a limiting rod 301 slidably sleeved in the limiting groove 300, one end of the connecting rod 211 is fixedly connected to a first magnet 302, one end of the second rotating rod 209 is fixedly connected to a second magnet 303, and a first spring 304 is connected between the limiting rod 301 and the limiting groove 300;

[0043] By setting the second magnet 303, in the initial state, the third bevel gear 210 and the second bevel gear 204 are in a meshing state. In this state, rotating the shaft 105 can rotate the first rotating rod 201 and the second rotating rod 209 to open the mouth on both sides. When only one side of the mouth needs to be opened, the staff can move the position of the second rotating rod 209 so that the second rotating rod 209 is close to the connecting rod 211, so that the first magnet 302 and the second magnet 303 are magnetically attracted, and the third bevel gear 210 and the second bevel gear 204 are disengaged, so that the position of the second rotating rod 209 can be fixed, so that the second rotating rod 209 is not interfered with when the shaft 105 rotates, and the effect of only needing to open the mouth on one side can be achieved.

[0044] As a further solution of the present invention, the fixing structure includes a first gear 400 fixedly sleeved on the outside of the rotating shaft 105, a fixing rod 401 is fixedly connected to the top of the holding rod 104, a second gear 402 meshing with the first gear 400 is rotatably sleeved on the outside of the fixing rod 401, a ratchet 403 is fixedly connected to the top of the second gear 402, a top cover 404 is connected to the top of the fixing rod 401, and a plurality of ratchet claws 405 adapted to the ratchet 403 are rotatably connected to the inner side wall of the top cover 404;

[0045] By setting the first gear 400, when the shaft 105 rotates, the rotation of the shaft 105 can drive the first gear 400 to rotate, and the rotation of the first gear 400 can rotate the position of the second gear 402 and the ratchet 403. The pawl 405 set after the ratchet 403 rotates can limit the position of the ratchet 403 and prevent the ratchet 403 from reversing, thereby achieving the angle of the fixed shaft 105 after rotation, avoiding the problem of the patient's upper and lower jaws applying force to cause the first support plate 103 and the second support plate 207 to reset.

[0046] As a further solution of the present invention, a first support rod 406 is fixedly connected to the top of the fixed rod 401, a positioning rod 407 is fixedly connected to the top of the first support rod 406, a second support rod 408 is fixedly connected to the inner top surface of the top cover 404, a positioning groove 409 is provided at the bottom of the second support rod 408 for sliding connection with the positioning rod 407, and a second spring 410 is connected between the first support rod 406 and the second support rod 408;

[0047] By setting the second support rod 408, when it is necessary to relax the patient's mouth, the staff can lift the top cover 404 upwards, so that the second support rod 408 moves upward to stretch the second spring 410, and the pawl 405 leaves the ratchet 403. At this time, the ratchet 403 no longer reels in the line and can rotate in the opposite direction, thereby resetting the positions of the first support plate 103 and the second support plate 207, thereby achieving the effect of relaxing the patient's mouth.

[0048] Embodiment 2

[0049] In this embodiment, on the basis of the first embodiment, a rotating disk 500 is fixedly connected to the bottom of the rotating shaft 105, and the rotating disk 500 is located at the bottom of the holding rod 104;

[0050] By providing the turntable 500 , it is possible for the staff to conveniently rotate the position of the rotating shaft 105 .

[0051] As a further solution of the present invention, a fixed tube 305 is fixedly connected to one side of the interior of the main body 100, and the first rotating rod 201, the second rotating rod 209 and the rotating shaft 105 are rotatably connected to the fixed tube 305;

[0052] By providing the fixing tube 305 , the positions of the first rotating rod 201 , the second rotating rod 209 and the rotating shaft 105 can be restricted, which can increase the stability of the three during rotation.

[0053] Working principle: By setting up the main body 100, when in use, the staff can extend the main body 100 into the patient's mouth and allow the patient's teeth to be in the grooves. When the patient's mouth needs to be stretched, the staff can rotate the shaft 105. The rotation of the shaft 105 can use the stretching structure to rotate the position of the first support plate 103, so that the support plate rotates with the fixed frame as the center of rotation, and the patient's upper jaw or lower jaw is moved away from the main body 100, thereby achieving the effect of unilaterally stretching the patient's upper jaw or lower jaw. At the same time, the fixed structure set after the rotation of the shaft 105 can fix the angle of the shaft 105 after rotation, thereby avoiding the problem of failure to stretch the mouth due to the first support plate 103 being reset after the patient's mouth is stretched due to discomfort and relaxation.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oral retractor, characterized in that: The invention comprises a main body (100), a first side opening (101) is provided on one side of the main body (100), a first fixing frame (102) is fixedly connected to the top of the first side opening (101), a first support plate (103) is rotatably connected to the first fixing frame (102), a groove adapted to the patient's teeth is provided on one side of the first support plate (103), a holding rod (104) is fixedly connected to the bottom of the main body (100), a rotating shaft (105) is rotatably connected to the holding rod (104), a supporting structure for rotating the support plate is provided on the main body (100), the supporting structure can rotate the position of the first support plate (103) after the rotating shaft (105) is rotated, and a fixing structure for fixing the rotation angle of the rotating shaft (105) is provided on the holding rod (104).

2. The oral retractor according to claim 1, characterized in that: The support structure comprises a first rotating cavity (200) opened on one side of the first side opening (101); a first rotating rod (201) is rotatably connected to one side of the interior of the main body (100); one end of the first rotating rod (201) extends into the first rotating cavity (200) and is fixedly connected to a first paddle (202); the other end of the first rotating rod (201) is fixedly connected to a first bevel gear (203); and the top of the rotating shaft (105) is fixedly connected to a second bevel gear (204) meshing with the first bevel gear (203).

3. The oral retractor according to claim 2, characterized in that: A second side opening (205) is provided on one side of the main body (100), a second fixing frame (206) is fixedly connected to the top of the second side opening (205), a second support plate (207) is rotatably connected to the second fixing frame (206), a second rotating cavity (208) is provided in the second side opening (205), a second rotating rod (209) is rotatably connected to one side of the main body (100), one end of the second rotating rod (209) is fixedly connected to a third bevel gear (210) matched with the second bevel gear (204), one end of the second rotating rod (209) is connected to a connecting rod (211), the connecting rod (211) extends into the second rotating cavity (208) and is fixedly connected to a second paddle (212).

4. The oral retractor according to claim 3, characterized in that: A limiting groove (300) is provided on one side of the second rotating rod (209); one end of the connecting rod (211) is fixedly connected to a limiting rod (301) slidably mounted on the limiting groove (300); one end of the connecting rod (211) is fixedly connected to a first magnet (302); one end of the second rotating rod (209) is fixedly connected to a second magnet (303); and a first spring (304) is connected between the limiting rod (301) and the limiting groove (300).

5. The oral retractor according to claim 1, characterized in that: The fixing structure comprises a first gear (400) fixedly sleeved on the outside of the rotating shaft (105); the top of the holding rod (104) is fixedly connected to a fixing rod (401); the outside of the fixing rod (401) is rotatably sleeved with a second gear (402) meshing with the first gear (400); the top of the second gear (402) is fixedly connected to a ratchet (403); the top of the fixing rod (401) is connected to a top cover (404); the inner side wall of the top cover (404) is rotatably connected to a plurality of ratchet claws (405) adapted to the ratchet (403).

6. The oral retractor according to claim 5, characterized in that: The top of the fixed rod (401) is fixedly connected to a first support rod (406), the top of the first support rod (406) is fixedly connected to a positioning rod (407), the inner top surface of the top cover (404) is fixedly connected to a second support rod (408), the bottom of the second support rod (408) is provided with a positioning groove (409) slidably connected to the positioning rod (407), and a second spring (410) is connected between the first support rod (406) and the second support rod (408).

7. The oral retractor according to claim 1, characterized in that: A rotating disk (500) is fixedly connected to the bottom of the rotating shaft (105), and the rotating disk (500) is located at the bottom of the holding rod (104).

8. The oral retractor according to claim 4, characterized in that: A fixed tube (305) is fixedly connected to one side of the interior of the main body (100), and the first rotating rod (201), the second rotating rod (209) and the rotating shaft (105) are rotatably connected to the fixed tube (305).

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