Multi-angle adaptive dilator for oral examination

Abstract

The invention relates to the technical field of oral cavity examination, in particular to a multi-angle adaptive dilator for oral cavity examination, which comprises a support plate, a support sheet, a dilation sheet and the like, the two supporting plates are symmetrically arranged up and down; each supporting plate is connected with two supporting pieces in a sliding mode through a movable plate. Two expanding and supporting sheets are arranged between the two supporting plates; a plurality of through holes are formed in each expanding and supporting sheet; a channel is arranged in each expanding and supporting sheet; a cavity is formed in each expanding and supporting sheet; each cavity is communicated with the adjacent channel; a plurality of side holes are formed in each expanding and supporting sheet; a plurality of spray holes are formed in each expanding and supporting sheet; and a spraying cavity is formed in each expanding and supporting sheet. According to the device, the ulcer of a patient is extruded through the cleaning block, saliva at the ulcer is further adsorbed, and the oral paste on the placing block gradually gets close to the ulcer and is attached to the ulcer, so that pasting of the oral paste at the position is achieved, and medical treatment on the ulcer is improved.

Description

Technical Field

[0001] The invention relates to the technical field of oral examination, and in particular to a dilator for oral examination that is adaptable to multiple angles. Background Art

[0002] An oral expander is a medical device that is primarily used to expand the opening of the oral cavity so that doctors can better observe and operate during oral examinations, treatments, or surgeries.

[0003] According to the Chinese patent with application number CN202111465075.3: An oral expander for oral examination, the above patent, with the cooperation of the lip expansion device and the driving device, moves the device to correspond to the oral cavity by pulling the handle, twists the knob one circle forward, and the rotating groove plate drives the first L-shaped plate to move outward through the sliding column, and then the first expansion plate moves outward to expand the lips, and people can examine the oral cavity. In this way, it is convenient for people to expand the mouth and it is not easy to make the mouth move. However, the above patent does not have the function of expanding the upper and lower lips, which makes it impossible for medical staff to observe whether there is a problem with the patient's upper and lower lips, resulting in the medical staff's examination of the patient is not comprehensive enough.

[0004] At the same time, if an ulcer appears deep in the patient's mouth, medical staff may not be able to handle it smoothly due to inconvenience in operation, which may easily cause secondary damage to the patient. The above patent makes it difficult to treat the ulcer, resulting in poor treatment effect for the patient. Summary of the invention

[0005] In order to overcome the disadvantage that ulcers deep in the oral cavity are difficult for medical staff to handle and cannot be handled smoothly, which may cause secondary damage to the patient, the present invention provides a multi-angle adaptable dilator for oral examination.

[0006] The technical scheme of the present invention is: a dilator for oral examination with multi-angle adaptability, including a support plate, a support sheet and an expansion sheet; two support plates are provided, and are symmetrically arranged in an upper and lower manner; two support sheets are slidably connected to each support plate through a movable plate; two expansion sheets are provided between the two support plates; a plurality of through holes are provided in each expansion sheet; a channel is provided in each expansion sheet; a cavity is provided in each expansion sheet; each cavity is connected to an adjacent channel; a plurality of side holes are provided in each expansion sheet; a plurality of spray holes are provided on each expansion sheet; a spray cavity is provided in each expansion sheet; an adjustment component, a baffle, a cleaning block, a placement block and a push rod are also included; an adjustment component for adjusting the distance between the two support plates is provided between the two support plates; a baffle for changing the size of the spray is slidably connected in each expansion sheet; a placement block for placing an oral patch is connected to each baffle; each placement block is located outside the expansion sheet; a cleaning block for keeping the wound dry is fixedly connected to the two placement blocks; and a push rod is connected to each baffle.

[0007] More preferably, the adjustment assembly includes a fixed plate, a first fixed bin, a connecting plate, a first latch and an adjustment unit; two fixed plates are fixedly connected to the lower side of the support plate located on the upper side; a socket one is provided on the lower side of each fixed plate; a first fixed bin is fixedly connected to the lower side of each fixed plate; two connecting plates are fixedly connected to the upper side of the support plate located on the lower side; each connecting plate is slidably connected to the adjacent first fixed bin; a number of sockets two are provided on each connecting plate; a first latch is slidably connected to the rear side of each first fixed bin; and adjustment units for adjusting the distance between the two expansion plates are provided on the two support plates.

[0008] More preferably, it also includes a slider and an elastic member; a plurality of sliders are slidably connected to the two support plates; each slider located on the upper side is fixedly connected to an elastic member on one side close to the adjacent expansion plate; each elastic member's telescopic end is rotatably connected to the adjacent expansion plate; each slider located on the lower side is fixedly connected to a round rod on one side close to the adjacent expansion plate; each round rod is rotatably connected to the adjacent expansion plate.

[0009] More preferably, the adjustment unit includes a fixed rod, a second fixed bin, a connecting rod, and a second latch; each slider located on the left side is fixedly connected to a fixed rod on the right side; each fixed rod is provided with a socket three on the right side; each fixed rod is fixedly connected to a second fixed bin on the right side; each slider located on the right side is fixedly connected to a connecting rod on the left side; each connecting rod is slidably connected to an adjacent second fixed bin; each connecting rod is provided with a plurality of sockets four; and each second fixed bin is slidably connected to a second latch on the rear side.

[0010] More preferably, it also includes a toggle assembly, which includes a rotating shaft, a limit plate, a sleeve and a paddle; each support plate is rotatably connected to a rotating shaft; a rotating part is provided on the left side of each rotating shaft; each rotating shaft is slidably connected to an adjacent support plate; a limit plate is fixedly connected to each of the two rotating shafts; two sleeves are slidably connected to each rotating shaft; each sleeve is located on an adjacent support plate; and a paddle is fixedly connected to the front side of each sleeve.

[0011] More preferably, the cleaning block is configured as a sponge material.

[0012] More preferably, the rear side of each supporting piece is configured to be arc-shaped.

[0013] More preferably, each paddle is provided with a bending portion.

[0014] More preferably, each rotating part is provided with a rough surface.

[0015] More preferably, each cleaning block is wider than the width of an adjacent placement block.

[0016] The beneficial effects are as follows: the present invention realizes that the cleaning block is squeezed with the patient's ulcer, so as to further absorb the saliva at the ulcer, and the cleaning block is deformed, so that the oral patch on the placement block gradually approaches the ulcer and finally adheres to the ulcer, thereby realizing the posting of the oral patch on the ulcer at the above position, and improving the medical treatment of the ulcer;

[0017] By increasing the time the spray flows in the channel and reducing the time it flows in the cavity, the flow rate of the spray ejected from the side holes and the nozzle holes is further increased, making it easier for the spray to reach deeper locations in the oral cavity, thereby improving the spray's ability to treat deep ulcers;

[0018] The patient's lips are squeezed by the pick to turn the patient's lips out of the mouth and maintain the above state, exposing the area where the patient's lips fit the upper and lower jaws, making it easier for medical staff to examine the above-exposed area of ​​the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of a second three-dimensional structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the combined three-dimensional structure of the expansion piece, the cleaning block, the placement block and the adjustment assembly of the present invention, wherein the expansion piece and the cleaning block are treated as cross-sections;

[0022] Figure 4It is a schematic diagram of the three-dimensional structure of the expansion plate, the baffle plate and the adjustment assembly of the present invention, wherein the expansion plate and the baffle plate are cross-sectionally processed;

[0023] Figure 5 A top view of the expansion sheet and the blocking sheet assembly of the present invention;

[0024] Figure 6 It is a schematic diagram of the combined three-dimensional structure of the support plate, the support sheet and the adjustment unit of the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the adjustment unit of the present invention;

[0026] Figure 8 For the present invention Figure 3 A magnified image of the area at A;

[0027] Fig. 9 It is an exploded view of the support plate and the toggle assembly of the present invention.

[0028] Fig.10 It is an exploded side view of the toggle assembly of the present invention.

[0029] In the accompanying drawings: 1-support plate, 2-support plate, 2001-movable plate, 3-expansion plate, 3001-through hole, 3002-cavity, 3003-side hole, 3004-spray hole, 3005-channel, 3006-spray chamber, 4-blocking plate, 5-cleaning block, 6-placing block, 7-push rod, 101-fixed plate, 102-first fixed bin, 103-connecting plate, 104-first latch, 105-fixed rod, 106-second fixed bin, 107-connecting rod, 108-second latch, 109-slider, 110-elastic member, 201-rotating shaft, 20101-rotating part, 202-limiting plate, 203-sleeve, 204-paddle, 20401-bending part. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figure 1-Figure 10As shown, a dilator for oral examination with multi-angle adaptability includes a support plate 1, a support sheet 2 and an expansion sheet 3; two support plates 1 are provided, and are symmetrically arranged in an upper and lower manner; two left-right symmetrical support sheets 2 are slidably connected to each support plate 1 through a moving plate 2001; two left-right symmetrical expansion sheets 3 are arranged between the two support plates 1; a plurality of through holes 3001 are opened in each expansion sheet 3; a channel 3005 is arranged in each expansion sheet 3; a cavity 3002 is arranged in each expansion sheet 3; each cavity 3002 is connected to an adjacent channel 3005; a plurality of side holes 3003 are opened in each expansion sheet 3; a plurality of spray holes 3004 are opened on each expansion sheet 3; a spray cavity 3006 is arranged in each expansion sheet 3;

[0033] It also includes an adjustment component, a baffle 4, a cleaning block 5, a placement block 6 and a push rod 7; an adjustment component is arranged between the two support plates 1; each expansion plate 3 is slidably connected to a baffle 4; each baffle 4 is connected to an oral placement block 6; each placement block 6 is located on the outside of the expansion plate 3; a cleaning block 5 is fixedly connected to the opposite sides of the two placement blocks 6; each baffle 4 is connected to a push rod 7.

[0034] The adjustment component includes a fixed plate 101, a first fixed bin 102, a connecting plate 103, a first latch 104 and an adjustment unit; two left-right symmetrical fixed plates 101 are fixedly connected to the lower side of the support plate 1 located on the upper side; a socket 1 is provided on the lower side of each fixed plate 101; a first fixed bin 102 is fixedly connected to the lower side of each fixed plate 101; two left-right symmetrical connecting plates 103 are fixedly connected to the upper side of the support plate 1 located on the lower side; each connecting plate 103 is slidably connected to the adjacent first fixed bin 102; a number of sockets 2 are provided on each connecting plate 103; a first latch 104 is slidably connected to the rear side of each first fixed bin 102; and adjustment units are provided on the opposite sides of the two support plates 1.

[0035] It also includes a slider 109 and an elastic member 110; a plurality of four sliders 109 are slidably connected to the two support plates 1 on the opposite sides; each slider 109 located on the upper side is fixedly connected to a side close to the adjacent expansion plate 3 with an elastic member 110, and the elastic member 110 is a spring telescopic rod; the telescopic end of each elastic member 110 is rotatably connected to the adjacent expansion plate 3; each slider 109 located on the lower side is fixedly connected to a side close to the adjacent expansion plate 3 with a round rod; each round rod is rotatably connected to the adjacent expansion plate 3.

[0036] The adjustment unit includes a fixed rod 105, a second fixed bin 106, a connecting rod 107, and a second latch 108; each slider 109 located on the left side is fixedly connected to a fixed rod 105 on the right side; each fixed rod 105 is provided with a socket three on the right side; each fixed rod 105 is fixedly connected to a second fixed bin 106 on the right side; each slider 109 located on the right side is fixedly connected to a connecting rod 107 on the left side; each connecting rod 107 is slidably connected to an adjacent second fixed bin 106; each connecting rod 107 is provided with a plurality of socket fours; each second fixed bin 106 is slidably connected to a second latch 108 on the rear side.

[0037] It also includes a toggle assembly, which includes a rotating shaft 201, a limit plate 202, a sleeve 203 and a paddle 204; each support plate 1 is rotatably connected to a rotating shaft 201; a rotating portion 20101 is provided on the left side of each rotating shaft 201; each rotating shaft 201 is slidably connected to the adjacent support plate 2; a limit plate 202 is fixedly connected to the two rotating shafts 201; two left-right symmetrical sleeves 203 are slidably connected to each rotating shaft 201; each sleeve 203 is located on the adjacent support plate 2; a paddle 204 is fixedly connected to the front side of each sleeve 203.

[0038] The cleaning block 5 is configured as a sponge material.

[0039] The rear side of each support sheet 2 is configured to be arc-shaped, so that the support sheet 2 can expand the patient's oral cavity upward and downward.

[0040] First, the patient opens his mouth, and the medical staff inserts the support sheet 2 and the expansion sheet 3 into the patient's mouth, so that the support sheet 2 rests against the teeth of the patient's upper and lower jaws, and the expansion sheet 3 rests against the two sides of the patient's mouth, so that the support sheet 2 and the expansion sheet 3 support the patient's mouth, making the patient's mouth unable to close, thereby achieving the expansion of the patient's mouth, which is convenient for subsequent inspection of the patient's mouth.

[0041] Subsequently, due to the different sizes of the patients' oral cavity, the expansion degrees of the patients' oral cavity are different. Therefore, after placing the support sheet 2 and the expansion sheet 3 into the patient's oral cavity, the medical staff can pull open the first latch 104 and then pull the support plate 1 on the lower side downward to stretch the elastic member 110, thereby moving the connecting plate 103 and the slider 109 on the lower side downward, and then moving the support sheet 2 on the lower side downward in coordination with the opening of the patient's oral cavity, thereby increasing the distance between the two support plates 1 in coordination with the expansion of the patient's oral cavity, so that the support sheet 2 always presses against the patient's upper and lower jaws. After the adjustment is completed, the first latch 104 is pressed forward to insert the first latch 104 into the socket 1 and the socket 2, thereby achieving the adjustment of the fixing plate 101 and the fixing plate 101. The connecting plates 103 are locked, thereby achieving locking between the two support plates 1. At the same time, the medical staff can push the expansion piece 3 on the right side to the right, so that the blocking piece 4, the slider 109 and the elastic member 110 on the right side slide to the right, so that the distance between the two expansion pieces 3 is increased, and the two expansion pieces 3 are set against the two sides of the patient's mouth. After the adjustment is completed, the second pin 108 is pressed forward to insert the second pin 108 into the socket three and the socket four to achieve locking between the fixing rod 105 and the connecting rod 107, and then achieve locking between the two expansion pieces 3, thereby achieving multi-angle adaptation for different degrees of oral expansion of different patients, which is beneficial for medical staff to conduct oral examinations on different staff members.

[0042] Subsequently, since the upper and lower lips of the patient also need to be examined, and it is difficult for existing equipment to expand the upper and lower lips of the patient, after the expansion of the patient's oral cavity is completed, based on the view from left to right, the medical staff can rotate the rotating part 20101 located on the upper side clockwise, thereby driving the rotating shaft 201, the limiting plate 202 and the sleeve 203 located on the upper side to rotate counterclockwise, and then driving the two paddles 204 located on the upper side to rotate counterclockwise, so that the paddles 204 squeeze the patient's upper lip during the rotation process, so that the patient's upper lip is gradually separated from the upper palate, exposing the part where the upper lip and the upper palate are fitted. Thereby, the patient's upper lip is expanded, which is convenient for medical staff to examine the patient's upper lip. Similarly, based on the view from left to right, the medical staff can rotate the rotating part 20101 on the lower side counterclockwise, thereby driving the rotating shaft 201, the limiting plate 202 and the sleeve 203 on the lower side to rotate clockwise, and then driving the two paddles 204 on the lower side to rotate clockwise, so that the paddles 204 squeeze the patient's lower lip during the rotation, so that the patient's lower lip is gradually separated from the lower jaw, exposing the part where the lower lip and the lower jaw are in contact, thereby expanding the patient's lower lip, which is convenient for medical staff to examine the patient's lower lip.

[0043] Subsequently, since ulcers may appear on the patient's upper lip and lower lip, if the wound is located at the position where the paddle 204 squeezes the upper lip and lower lip, it will cause secondary injury to the patient. Therefore, when the above situation occurs, the medical staff can let the patient open his mouth first, and then move the movable plate 2001 left and right to move the support plate 2 left and right, thereby driving the sleeve 203 and the paddle 204 to move left and right, so that the paddle 204 does not contact the position of the patient with the ulcer, and then let the paddle 204 move the patient's upper lip and lower lip to improve the protection effect on the patient.

[0044] Subsequently, when it is necessary to treat the ulcers on the patient's upper lip and lower lip, the medical staff can directly stick the oral patch on the ulcers on the patient's upper lip and lower lip, or directly spray the medical spray on the above-mentioned positions. However, if the ulcer appears in the deep part of the oral cavity, the above-mentioned operation method is extremely difficult to treat it, and it is inconvenient for the medical staff to observe the position of the ulcer and it is also inconvenient to operate. Therefore, when sticking the oral patch on the ulcer deep in the oral cavity, the medical staff can fix the non-sticky surface of the oral patch on the placement block 6 in advance, and then expand the patient's oral cavity through the expansion sheet 3, and then push the push rod 7 forward, so that the push rod 7 pushes the blocking sheet 4, the cleaning block 5 and the placement block 6 to move toward the inside of the oral cavity, so that the cleaning block 5 always fits the lips during the movement, and wipes the saliva adhering to the inner side of the oral cavity until the cleaning block 5 and The placement block 6 reaches the position of the ulcer, so that the cleaning block 5 wipes the saliva at the ulcer, improves the viscosity of the oral patch on the placement block 6 on the ulcer, and is conducive to the posting of the oral patch. Subsequently, the expansion sheet 3, the baffle 4, the cleaning block 5 and the placement block 6 located on the left are explained. Based on the view from top to bottom, the medical staff rotates the expansion sheet 3 counterclockwise, thereby driving the baffle 4, the cleaning block 5 and the placement block 6 to rotate counterclockwise, so that the cleaning block 5 further absorbs the saliva at the ulcer and causes the cleaning block 5 to deform, so that the oral patch on the placement block 6 gradually approaches the ulcer and finally fits on the ulcer, thereby realizing the posting of the oral patch on the ulcer at the above position, improving the medical treatment of the ulcer. Compared with the prior art, the present invention makes it easier for medical staff to post the oral patch on the ulcer, and improves the convenience and stability of operation.

[0045] At the same time, sometimes it is necessary to spray the ulcer with medicine mist. Therefore, when the baffle 4 moves forward, the through hole 3001 will gradually be exposed. At this time, the medical staff sprays the spray into the spray chamber 3006, so that the medicine mist passes through the through hole 3001 and enters the channel 3005, and then enters the cavity 3002 along the channel 3005, and then sprays out from the side hole 3003 and the spray hole 3004 to the ulcer. Since the channel 3005 is narrow, the spray flow rate from the channel 3005 to the cavity 3002 will increase. In the process of the baffle 4 moving forward, the length of the channel 3005 is extended, and the volume of the cavity 3002 is reduced, so that when the spray is sprayed from the side hole 3003 and the nozzle hole 3004, the time for the spray to flow in the channel 3005 will be increased, and the time for the spray to flow in the cavity 3002 will be reduced, thereby further increasing the flow rate of the spray sprayed from the side hole 3003 and the nozzle hole 3004, making it easier for the spray to reach deeper positions in the oral cavity, thereby improving the spray's ability to treat deep ulcers.

[0046] Example 2

[0047] On the basis of Example 1, Figure 1 , Figure 2 and Figure 8-Figure 10 As shown, each pick 204 is provided with a bending portion 20401; when the pick 204 squeezes the patient's lips, the patient's lips are turned outward through the bending portion 20401, so that the inner side of the patient's lips is exposed, which is convenient for medical staff to check the patient's lips.

[0048] Each rotating part 20101 is configured with a rough surface to increase the friction between the medical staff and the rotating part 20101 to avoid slipping.

[0049] Each cleaning block 5 is wider than the adjacent placement block 6, so that the cleaning block 5 fits the oral cavity, preventing the oral cavity sticker on the placement block 6 from falling off the placement block 6 when the cleaning block 5 and the placement block 6 move forward.

[0050] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. A dilator for oral examination with multi-angle adaptability, comprising a support plate (1), a support sheet (2) and an expansion sheet (3); two support plates (1) are provided, and are symmetrically arranged in an upper and lower manner; each support plate (1) is slidably connected to two support sheets (2) through a movable plate (2001); two expansion sheets (3) are arranged between the two support plates (1); each expansion sheet (3) is provided with a plurality of through holes (3001); each expansion sheet (3) is provided with a channel (3005); each expansion sheet (3) is provided with a cavity (3002); each cavity (3002) is connected to an adjacent channel (3005); each expansion sheet (3) is provided with a plurality of side holes (3003); each expansion sheet (3) is provided with a plurality of spray holes (3004); each expansion sheet (3) is provided with a spray cavity (3006); characterized in that: The device also comprises an adjustment component, a baffle (4), a cleaning block (5), a placement block (6) and a push rod (7); an adjustment component for adjusting the distance between the two support plates (1) is arranged between the two support plates (1); a baffle (4) for changing the spray size is slidably connected inside each expansion plate (3); a placement block (6) for placing an oral patch is connected to each baffle (4); each placement block (6) is located outside the expansion plate (3); a cleaning block (5) for keeping the wound dry is fixedly connected to each of the two placement blocks (6); and each baffle (4) is connected to a push rod (7).

2. The multi-angle adaptable oral examination dilator according to claim 1, characterized in that: The adjustment component comprises a fixed plate (101), a first fixed bin (102), a connecting plate (103), a first latch (104) and an adjustment unit; two fixed plates (101) are fixedly connected to the lower side of the support plate (1) located on the upper side; a plug hole 1 is provided on the lower side of each fixed plate (101); a first fixed bin (102) is fixedly connected to the lower side of each fixed plate (101); two connecting plates (103) are fixedly connected to the upper side of the support plate (1) located on the lower side; each connecting plate (103) is slidably connected to an adjacent first fixed bin (102); a plurality of plug holes 2 are provided on each connecting plate (103); a first latch (104) is slidably connected to the rear side of each first fixed bin (102); and adjustment units for adjusting the distance between two expansion plates (3) are provided on the two support plates (1).

3. The multi-angle adaptable oral examination dilator according to claim 2, characterized in that: It also comprises a slider (109) and an elastic member (110); a plurality of sliders (109) are slidably connected to the two support plates (1); each slider (109) located on the upper side is fixedly connected to an elastic member (110) on one side close to the adjacent expansion plate (3); the telescopic end of each elastic member (110) is rotatably connected to the adjacent expansion plate (3); each slider (109) located on the lower side is fixedly connected to a round rod on one side close to the adjacent expansion plate (3); each round rod is rotatably connected to the adjacent expansion plate (3).

4. The multi-angle adaptable oral examination dilator according to claim 3, characterized in that: The adjustment unit comprises a fixing rod (105), a second fixing bin (106), a connecting rod (107), and a second latch (108); each slider (109) located on the left side is fixedly connected to a fixing rod (105) on the right side; each fixing rod (105) is provided with a plug hole (3) on the right side; each fixing rod (105) is fixedly connected to a second fixing bin (106) on the right side; each slider (109) located on the right side is fixedly connected to a connecting rod (107) on the left side; each connecting rod (107) is slidably connected to an adjacent second fixing bin (106); each connecting rod (107) is provided with a plurality of plug holes (4); and each second fixing bin (106) is slidably connected to a second latch (108) on the rear side.

5. The multi-angle adaptable oral examination dilator according to claim 3, characterized in that: The invention also comprises a toggle assembly, which comprises a rotating shaft (201), a limiting plate (202), a sleeve (203) and a paddle (204); each support plate (1) is rotatably connected to a rotating shaft (201); a rotating portion (20101) is arranged on the left side of each rotating shaft (201); each rotating shaft (201) is slidably connected to an adjacent support plate (2); a limiting plate (202) is fixedly connected to the two rotating shafts (201); two sleeves (203) are slidably connected to each rotating shaft (201); each sleeve (203) is located on an adjacent support plate (2); and a paddle (204) is fixedly connected to the front side of each sleeve (203).

6. The multi-angle adaptable oral examination dilator according to claim 1, characterized in that: The cleaning block (5) is configured as a sponge material.

7. The multi-angle adaptable oral examination dilator according to claim 5, characterized in that: The rear side of each supporting sheet (2) is arranged in an arc shape.

8. The multi-angle adaptable oral examination dilator according to claim 5, characterized in that: Each paddle (204) is provided with a bending portion (20401).

9. The multi-angle adaptable oral examination dilator according to claim 5, characterized in that: Each rotating part (20101) is configured as a rough surface.

10. The multi-angle adaptable oral examination dilator according to claim 6, characterized in that: Each cleaning block (5) is wider than the adjacent placement block (6).

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