Oral cavity expansion device

Abstract

The invention relates to the technical field of stomatology, in particular to an oral cavity expansion device which comprises a supporting frame, a plurality of supporting columns, a plurality of moving assemblies and a plurality of liquid suction assemblies, and the supporting frame is located at the oral cavity position of a patient; the supporting columns are symmetrically arranged on the peripheral side of the oral cavity of a patient, make contact with oral cavity tissue of the patient and are used for expanding the size of the oral cavity. The number of the moving assemblies is the same as that of the supporting columns, each moving assembly corresponds to one supporting column, the multiple moving assemblies are symmetrically arranged on the two sides of the supporting frame, one ends of the moving assemblies are slidably connected with the supporting frame, and the other ends of the moving assemblies are fixedly connected with column bodies of the supporting columns; the number of the liquid suction assemblies is equal to that of the supporting columns, and each liquid suction assembly is connected with one end of one supporting column. In the device, each supporting column can independently move left and right or up and down, the use flexibility of the device is improved, meanwhile, the liquid suction assembly can suck saliva generated in the oral cavity of a patient, and the operation difficulty of a doctor is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of oral medicine, and in particular to an oral expansion device. Background Art

[0002] During the endodontic examination, the doctor needs to carefully observe the various surfaces of the teeth, the gaps between the teeth, the gum margins, and the entrance to the pulp cavity. If the mouth is not fully expanded, these areas may be blocked by soft tissues such as the lips, cheeks, and tongue, making it impossible for the doctor to clearly see the lesion. For this reason, an oral expansion device is needed to pull apart the soft tissues to create an open field of vision so that the doctor can fully and accurately observe the condition of the teeth and pulp.

[0003] When the current oral expansion device is used to expand the oral cavity, the tissues on both sides of the oral cavity need to be stretched open. The stretched oral cavity triggers mechanical stimulation and conditioned reflexes, thereby triggering the saliva secretion reflex. The saliva flowing in the oral cavity will not only cover the tooth surface, the gum edge or other parts that need to be inspected, thereby blocking the doctor's vision, but too much saliva will also make the inspection instrument slippery, increasing the difficulty of the doctor's operation. In addition, the shape of the existing oral expansion device is fixed, and the doctor may not be able to move the tool completely freely, which will limit the doctor's flexibility when performing oral operations. Summary of the invention

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides an oral dilation device.

[0005] The oral expansion device provided in this application includes:

[0006] A support frame, wherein the support frame is located at the patient's oral cavity;

[0007] A plurality of support columns, wherein the plurality of support columns are symmetrically arranged around the patient's oral cavity, and the support columns are in contact with the patient's oral cavity tissue to expand the size of the oral cavity;

[0008] A plurality of movable components, each of which corresponds to one of the support columns, and the plurality of movable components are symmetrically arranged on both sides of the support frame, one end of the movable component is slidably connected to the support frame, and the other end is fixedly connected to the column body of the support column, and the movable component is used to adjust the position of the support column;

[0009] A plurality of liquid suction components, each of which is connected to one end of a supporting column, and the liquid suction component is used to suck saliva produced in the patient's mouth.

[0010] Optionally, each of the moving components comprises a sliding block and a moving rod, one end of the moving rod is fixedly connected to the column body of the supporting column, and the sliding block is arranged on the moving rod;

[0011] A plurality of slide grooves are symmetrically arranged along the extension direction of the side frames on both sides of the support frame, each of the slide grooves corresponds to a sliding block, and the sliding block can slide in the slide groove along the extension direction of the slide groove to move the support column along the extension direction of the slide groove.

[0012] Optionally, each sliding block is provided with an avoidance hole, the moving rod passes through the avoidance hole and is slidably connected to the sliding block, and the moving rod can move in an extension direction perpendicular to the sliding groove to enable the support column to move along the extension direction perpendicular to the sliding groove.

[0013] The optional liquid suction assembly includes a suction column assembly and a suction pipe, wherein the suction pipe is arranged in the support column, a suction groove assembly is arranged inside the suction column assembly, one end of the suction pipe is connected to the suction groove assembly through-through, and the other end is connected to the suction pump;

[0014] A plurality of suction hole assemblies are provided on the surface of the suction column assembly, and the plurality of suction hole assemblies are evenly distributed in the extension direction of the suction column assembly, and the suction hole assemblies are through-connected with the suction groove assembly.

[0015] Optionally, the suction column assembly includes a connecting column and an expansion column, the connecting column includes a connecting pin, the expansion column is a hollow structure, one end of the connecting column is connected to the support column, and the connecting pin at the other end is inserted into the expansion column;

[0016] The suction hole assembly includes a plurality of first suction holes and a plurality of second suction holes, wherein the plurality of first suction holes are evenly distributed in the extending direction of the connecting pin, and the plurality of second suction holes are evenly distributed in the extending direction of the expansion column, and the plurality of first suction holes and the plurality of second suction holes correspond to each other one by one and are connected through;

[0017] The suction groove assembly includes a first suction groove and a second suction groove, the first suction groove is arranged in the connecting column, the second suction groove is arranged in the expansion column, one end of the first suction groove is through-connected with the suction pipe, and the other end is through-connected with the second suction groove, and a plurality of the first suction holes are through-connected with the first suction groove.

[0018] Optionally, it further includes an anti-suction assembly, the anti-suction assembly includes a first driving mechanism, a plurality of push plates, two push rings and a plurality of combining columns, the expansion column is provided with a plurality of grooves in the radial direction, and the grooves are arranged on both sides of the extension direction of each of the second suction holes;

[0019] The two push rings are arranged in the expansion column and are respectively arranged at the two ends of the expansion column. The plurality of combining columns are used to connect the two push rings so that the two push rings can rotate synchronously. The circumference of the push ring is provided with a plurality of push blocks, and the number of the push blocks is equal to the number of the grooves and the positions are corresponding.

[0020] The first driving mechanism is drivingly connected to one of the push rings for driving the push ring to rotate, and the push block abuts against the push plate so that the push block pushes the push plate out of the groove.

[0021] Optionally, the first driving mechanism includes a first motor, a gear and a toothed plate, the first motor drives the gear to rotate, the gear and the toothed plate are meshed and connected, and the toothed plate is fixedly connected to the push ring.

[0022] Optionally, the push plate further comprises a plurality of sleeve blocks, each of the push plates is provided with two sleeve blocks, and the sleeve blocks are symmetrically arranged on both sides of each end of the push plate;

[0023] The anti-suction assembly further includes a plurality of first guide rods and a plurality of first springs, wherein the number of the first guide rods is equal to the number of the sleeve blocks, one end of the first guide rod is fixedly connected to the housing of the expansion column, and the other end is sleeve-connected to the sleeve block;

[0024] The number of the first springs is equal to the number of the first guide rods. The first springs are arranged between the expansion column and the sleeve block and sleeved on the first guide rods.

[0025] Optionally, two second drive assemblies are further included, and the two second drive assemblies are arranged at one end of the support column away from the connecting column, and are symmetrically arranged on both sides of the support column;

[0026] Each of the second driving components includes a second motor, a reel and a wire drawing rope, wherein the second motor is arranged on the support column, one end of the wire drawing rope is wound around the reel, and the other end is fixedly connected to the connecting column, and the second motor is drivingly connected to the reel to drive the connecting column to be retracted into the supporting column;

[0027] It also includes two sliding rods and two second springs. Two sliding blocks are provided at one end of the connecting column close to the supporting column. The two sliding blocks are symmetrically arranged on both sides of the supporting column. The two sliding rods are arranged inside the supporting column along the extension direction of the supporting column. One end of the sliding rod is fixedly connected to the shell of the supporting column, and the other end is sleeved with the sliding block. The second spring is arranged between the supporting column and the sliding block, and is sleeved on the sliding rod. When the connecting column is retracted into the supporting column, the second spring is compressed.

[0028] Optionally, a disinfection component is further included, the disinfection component includes a liquid injection plate, the liquid injection plate is arranged on the support column, the liquid injection plate is provided with a liquid injection head and a liquid spraying groove, the liquid injection head is used to inject disinfectant into the liquid injection plate, the liquid spraying groove is connected to the support column, and the liquid spraying groove is used to inject disinfectant into the support column.

[0029] And / or, it further includes a liquid drain head, which is arranged on the bottom side of the support column and is used to drain the liquid in the support column.

[0030] The oral expansion device provided by the present application places the support frame at the position of the patient's oral cavity, inserts the support column into the patient's oral cavity, and symmetrically places it on the peripheral side of the patient's oral cavity. Each movable component corresponds to a support column, and the movable components are symmetrically arranged on both sides of the support frame. One end of the movable component is slidably connected to the support frame, and the other end is fixedly connected to the column body of the support column. By adjusting the position of each movable component, the support column located on the peripheral side of the oral cavity can be adjusted individually, so that the patient's oral cavity can be expanded for the doctor to examine the patient's dental pulp. In the present application, support columns are used to expand the peripheral side of the patient's oral cavity, and each support column can be moved left and right or up and down individually, which increases the flexibility of the device, is more suitable for patients with different mouth shapes, and can also improve the patient's comfort. In addition, the mouth is stretched open, which causes mechanical stimulation and conditioned reflex, thereby triggering the saliva secretion reflex. The saliva covers the surface of the teeth, the edge of the gums or other parts that need to be examined, blocking the doctor's line of sight. The suction component in the present application can suck the saliva produced in the patient's mouth, so that the saliva continuously produced in the patient's mouth can be continuously extracted. It can not only prevent the saliva from flowing in the mouth due to the presence of too much saliva in the mouth during the oral examination, but also prevent excessive saliva from making the inspection instrument slippery, thereby increasing the difficulty of the doctor's operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0033] Figure 1 This is a schematic structural diagram of the oral dilation device according to an embodiment of the present application from a first perspective;

[0034] Figure 2This is a schematic structural diagram of the oral dilation device according to the embodiment of the present application from a second viewing angle;

[0035] Figure 3 A cross-sectional view of a liquid-absorbing component according to an embodiment of the present application;

[0036] Figure 4 This is a schematic diagram of the structure of the support column and the liquid absorption component of the embodiment of the present application;

[0037] Figure 5 This is a disassembled diagram of the expansion column and the connecting column of an embodiment of the present application;

[0038] Figure 6 A cross-sectional view of an expansion column from a first viewing angle of an embodiment of the present application;

[0039] Figure 7 A detailed cross-sectional view of an expansion column according to an embodiment of the present application;

[0040] Figure 8 A detailed diagram of an expansion column according to an embodiment of the present application;

[0041] Fig. 9 This is a structural breakdown diagram of an expansion column in other embodiments of the present application;

[0042] Fig.10 A cross-sectional view of a support column from a first viewing angle according to an embodiment of the present application;

[0043] Fig.11 A cross-sectional view of a support column from a second viewing angle according to an embodiment of the present application;

[0044] Fig.12 It is a schematic diagram of the structure of the support column in other embodiments of the present application.

[0045] The reference numerals in the specific implementation manner are as follows:

[0046] 10. Support frame; 11. Slide; 20. Support column; 30. Moving assembly; 31. Sliding block; 32. Moving rod; 40. Liquid suction assembly; 41. Suction column assembly; 411. Suction groove assembly; 411a. First suction groove; 411b. Second suction groove; 412. Suction hole assembly; 412a. First suction hole; 412b. Second suction hole; 413. Connecting column; 413a. Connecting pin; 413a1. First fixing groove; 413b. Sliding block; 414. Expansion column; 414a. Groove; 414b. Second fixing groove Fixed groove; 42, suction tube; 50, anti-suction component; 51, first driving mechanism; 511, first motor; 512, gear; 513, tooth plate; 52, push plate; 521, sleeve block; 53, push ring; 531, push block; 54, combining column; 55, first spring; 60, second driving component; 61, second motor; 62, reel; 63, wire rope; 64, slide rod; 65, second spring; 70, disinfection component; 71, injection plate; 711, injection head; 712, spray tank; 713, discharge head; 80, fixing pin. DETAILED DESCRIPTION

[0047] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0048] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present application, rather than all of the embodiments.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0050] In the description of the embodiments of the present application, "multiple" and "several" mean more than two (including two), unless otherwise clearly and specifically defined.

[0051] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0052] According to some embodiments of the present application, referring to Figure 1 and Figure 2 As shown. The oral expansion device of the embodiment of the present application includes: a support frame 10, a plurality of support columns 20, a plurality of movable components 30 and a plurality of liquid suction components 40, the support frame 10 is located at the patient's oral position; a plurality of support columns 20 are symmetrically placed around the patient's oral cavity, the support columns 20 are in contact with the patient's oral tissue, and are used to expand the size of the oral cavity; the number of movable components 30 is the same as the number of support columns 20, each movable component 30 corresponds to a support column 20, and a plurality of movable components 30 are symmetrically arranged on both sides of the support frame 10, one end of the movable component 30 is slidably connected to the support frame 10, and the other end is fixedly connected to the column body of the support column 20, and the movable component 30 is used to adjust the position of the support column 20; the number of liquid suction components 40 is equal to the number of support columns 20, each liquid suction component 40 is connected to one end of a support column 20, and preferably the liquid suction component 40 is coaxially arranged with the support column 20, and the liquid suction component 40 is used to suck saliva produced in the patient's oral cavity.

[0053] The oral dilation device in the present application preferably has four support columns 20 , four moving components 30 , and four liquid suction components 40 , and the shape of the support frame 10 is rectangular.

[0054] After the support frame 10 is placed in the position of the patient's oral cavity, four support columns 20 are inserted into the patient's oral cavity and symmetrically placed on the peripheral side of the patient's oral cavity. Each movable component 30 corresponds to a support column 20, and the four movable components 30 are symmetrically arranged on both sides of the support frame 10. One end of the movable component 30 is slidably connected to the support frame 10, and the other end is fixedly connected to the column body of the support column 20. By adjusting the position of each movable component 30, the support column 20 located on the peripheral side of the oral cavity can be moved left and right or up and down independently, so that the patient's oral cavity can be expanded for the doctor to examine the patient's dental pulp. In the present application, the peripheral side of the patient's oral cavity is expanded by using support columns 20, and each support column 20 can be moved left and right or up and down independently, which increases the flexibility of the device, is more suitable for patients with different mouth shapes, and can also improve the comfort of the patient. In addition, the mouth is stretched open to cause mechanical stimulation and conditioned reflex, thereby triggering the saliva secretion reflex. The saliva covers the surface of the teeth, the edge of the gums or other parts that need to be examined, blocking the doctor's line of sight. The suction component 40 in the present application can suck the saliva produced in the patient's mouth, so that the saliva continuously produced in the patient's mouth can be continuously extracted. It can not only prevent the saliva from flowing in the mouth due to the presence of too much saliva in the mouth during the oral examination, but also prevent excessive saliva from making the inspection instrument slippery, thereby increasing the difficulty of the doctor's operation.

[0055] According to some embodiments of the present application, reference Figure 1 and Figure 2 As shown, each moving assembly 30 includes a sliding block 31 and a moving rod 32, one end of the moving rod 32 is fixedly connected to the column body of the support column 20, and the sliding block 31 is arranged on the moving rod 32; a plurality of slide grooves 11 are symmetrically arranged along the extension direction of the side frames on both sides of the support frame 10, each slide groove 11 corresponds to a sliding block 31, and the sliding block 31 can slide in the slide groove 11 along the extension direction of the slide groove 11, so that the support column 20 moves along the extension direction of the slide groove 11. Each sliding block 31 is provided with an avoidance hole, and the moving rod 32 passes through the avoidance hole and is slidably connected to the sliding block 31, and the moving rod 32 can move in the extension direction perpendicular to the slide groove 11, so that the support column 20 moves in the extension direction perpendicular to the slide groove 11.

[0056] Specifically, the extension direction of the moving rod 32 is perpendicular to the extension direction of the slide groove 11, the support column 20 is arranged inside the support frame 10, one end of the moving rod 32 is fixedly connected to the column body of the support column 20, and the extension direction of the moving rod 32 is perpendicular to the extension direction of the support column 20.

[0057] Since the sliding block 31 is arranged on the moving rod 32, the sliding block 31 can slide in the slide groove 11 along the extension direction of the slide groove 11, thereby driving the moving rod 32 to move up and down in the extension direction of the slide groove 11, and then driving the support column 20 to move up and down in the extension direction of the slide groove 11, so that the patient's mouth can be expanded up and down. Because each sliding block 31 is provided with an avoidance hole, the moving rod 32 passes through the avoidance hole and is slidably connected to the sliding block 31, and the moving rod 32 can move in the extension direction perpendicular to the slide groove 11, so that the support column 20 moves in the extension direction perpendicular to the slide groove 11, so that the patient's mouth can be expanded left and right. Each support column 20 can move left and right or up and down independently, which increases the flexibility of the device and is more suitable for patients with different mouth shapes.

[0058] According to some embodiments of the present application, reference Figures 3 to 5 As shown, the liquid suction assembly 40 includes a suction column assembly 41 and a suction pipe 42. The suction pipe 42 is arranged in the support column 20. A suction groove assembly 411 is arranged inside the suction column assembly 41. One end of the suction pipe 42 is connected to the suction groove assembly 411, and the other end is connected to the suction pump. A plurality of suction hole assemblies 412 are arranged on the surface of the suction column assembly 41. The plurality of suction hole assemblies 412 are evenly distributed in the extension direction of the suction column assembly 41. The suction hole assembly 412 is connected to the suction groove assembly 411. The suction column assembly 41 includes a connecting column 413 and an expansion column 414. The connecting column 413 includes a connecting pin 413a. The expansion column 414 is a hollow structure. One end of the connecting column 413 is connected to the support column 20, and the connecting pin 413a at the other end is inserted into the expansion column 414. Preferably, the connecting column 413 is slidably connected to the support column 20. The connecting column 413 is sleeved in the support column 20 and can be extended relative to the support column 20.

[0059] Specifically, each suction hole assembly 412 includes a plurality of through holes, and the plurality of through holes are evenly distributed along the circumference of the suction column assembly 41 . Each suction hole assembly 412 includes a plurality of first suction holes 412a and a plurality of second suction holes 412b, the plurality of first suction holes 412a are evenly distributed in the extension direction of the connecting pin 413a, the plurality of second suction holes 412b are evenly distributed in the extension direction of the expansion column 414, the plurality of first suction holes 412a and the plurality of second suction holes 412b correspond to each other one by one and are through-connected; the suction groove assembly 411 includes a first suction groove 411a and a second suction groove 411b, the first suction groove 411a is arranged in the connecting column 413, the second suction groove 411b is arranged in the expansion column 414, one end of the first suction groove 411a is through-connected with the suction pipe 42, and the other end is through-connected with the second suction groove 411b, and the plurality of first suction holes 412a are through-connected with the first suction groove 411a.

[0060] A plurality of first suction holes 412a are provided in the extending direction of the connecting pin 413a, and a plurality of second suction holes 412b are provided in the extending direction of the expansion column 414, and the plurality of first suction holes 412a and the plurality of second suction holes 412b correspond to each other one by one and are connected through. The suction tube 42 is externally connected to a suction pump, and the expansion column 414 is in direct contact with the oral tissue. The suction pump is used to generate a certain suction force, and the saliva produced in the oral cavity is sucked into the first suction hole 412a and the second suction hole 412b, and passes through the second suction groove 411b and the first suction groove 411a at one time, and finally enters the suction tube 42, and is then sucked out by the suction pump. Since the suction hole assembly 412 is evenly distributed on the outer surface of the suction column assembly 41, it is convenient for the suction column assembly 41 to suck saliva from all directions, so that the saliva continuously produced in the patient's mouth can be continuously extracted. This can not only prevent the saliva from flowing in the mouth due to the presence of too much saliva in the mouth during the oral examination; it can also prevent the saliva from covering the tooth surface, gum edge or other parts that need to be examined, blocking the doctor's line of sight; it can also prevent excessive saliva from making the examination instrument slippery, increasing the difficulty of the doctor's operation.

[0061] According to some embodiments of the present application, reference Figures 6 to 9 As shown, the oral expansion device also includes an anti-suction component 50, which includes a first driving mechanism 51, a plurality of grooves 414a, a plurality of push plates 52, two push rings 53 and a plurality of combining columns 54. The expansion column 414 is provided with a plurality of grooves 414a, and the grooves 414a are arranged on both sides of the extension direction of each second suction hole 412b; the two push rings 53 are arranged in the expansion column 414, and are respectively arranged at both ends of the expansion column 414, and the plurality of combining columns 54 are used to connect the two push rings 53 so that the two push rings 53 can rotate synchronously, and the push ring 53 is provided with a plurality of push blocks 531 in the circumference, and the number of the push blocks 531 is equal to the number of the grooves 414a, and the positions correspond; the first driving mechanism 51 is drivingly connected to one of the push rings 53, and is used to drive the push ring 53 to rotate, and the push block 531 is abutted against the push plate 52, so that the push block 531 pushes the push plate 52 out of the groove 414a.

[0062] Specifically, the first driving mechanism 51 includes a first motor 511, a gear 512 and a toothed plate 513. The first motor 511 drives the gear 512 to rotate. The gear 512 and the toothed plate 513 are meshed and connected. The toothed plate 513 is fixedly connected to the push ring 53. When the first motor 511 drives the gear 512 to rotate, the gear 512 can drive the toothed plate 513 to move because the gear 512 and the toothed plate 513 are meshed and connected. And because the toothed plate 513 and the push ring 53 are fixedly connected, the toothed plate 513 can drive the push ring 53 to rotate in its circumferential direction.

[0063] During use, when saliva is sucked, some tissues in the cavity will inevitably be sucked into the second suction hole 412b under the action of suction. The blockage of the second suction hole 412b will affect the extraction of saliva and cause oral discomfort in the patient. Figure 8 As shown in the rotation direction of the middle gear 512, when the gear 512 rotates clockwise, it will drive the tooth plate 513 to move clockwise, and then the tooth plate 513 can drive the push ring 53 to rotate clockwise. Figure 7 At this time, the push block 531 can push the push plate 52 out of the groove 414a, and the push plate 52 can push the oral tissue sucked into the second suction hole 412b out of the second suction hole 412b. The reciprocating rotation of the first motor 511 drives the push block 531 to reciprocately push the push plate 52 out of the groove 414a, so that the tissue sucked into the second suction hole 412b can be continuously pushed out, preventing the oral tissue from being sucked into the second suction hole 412b for a long time, causing discomfort to the patient's mouth. Preferably, in order to enhance comfort, the push plate 52 can be made of rubber.

[0064] In addition, the push plate 52 also includes a plurality of sleeve blocks 521, and two sleeve blocks 521 are provided at any end of each push plate 52, and the sleeve blocks 521 are symmetrically arranged on both sides of each end of the push plate 52; the anti-suction component 50 also includes a plurality of first guide rods and a plurality of first springs 55, the number of the first guide rods is equal to the number of the sleeve blocks 521, one end of the first guide rod is fixedly connected to the shell of the expansion column 414, and the other end is sleeved and connected to the sleeve block 521; the number of the first springs 55 is equal to the number of the first guide rods, and the first springs 55 are arranged between the expansion column 414 and the sleeve block 521, and are sleeved on the first guide rod.

[0065] After the push plate 52 is pushed out from the groove 414a, in order to facilitate the reset of the push plate 52, two sleeve blocks 521 are provided at both ends of each push plate 52, one end of the first guide rod is fixedly connected to the housing of the expansion column 414, and the other end is sleeved and connected to the sleeve block 521, and the first spring 55 is sleeved on the first guide rod. When the push plate 52 is pushed out from the groove 414a, the sleeve block 521 squeezes the first spring 55 to shrink it. When the push block 531 does not apply a thrust to the push plate 52, the push sleeve block 521 can drive the push plate 52 to move in the extension direction of the first spring 55 by utilizing the elastic force of the first spring 55, so that the push plate 52 can be retracted into the first spring 55 again.

[0066] refer to Figures 10 to 12The oral expansion device also includes two second drive assemblies 60, two sliding rods 64 and two second springs 65. The two second drive assemblies 60 are arranged at one end of the support column 20 away from the connecting column 413, and are symmetrically arranged on both sides of the support column 20; each second drive assembly 60 includes a second motor 61, a reel 62 and a winding wire rope 63. The second motor 61 is arranged on the support column 20, one end of the winding wire rope 63 is wound around the reel 62, and the other end is fixedly connected to the connecting column 413. The second motor 61 is driven and connected to the reel 62 to drive the connecting column 413 to be retracted into the support column 20.

[0067] When using the oral expansion device, due to the different depths of the oral cavity of different patients, for patients with shallow oral cavity, the second motor 61 drives the reel 62 to rotate, and one end of the wire drawing rope 63 is wound around the reel 62, so that the length of the wire drawing rope 63 can be continuously shortened, and the other end of the wire drawing rope 63 is fixedly connected to the connecting column 413, and the connecting column 413 is slidably connected to the support column 20. The connecting column 413 is sleeved in the support column 20 and can be extended and retracted relative to the support column 20. The shortening of the wire drawing rope 63 will drive the connecting column 413 to retract the support column 20, and then will also drive the contraction of the expansion column 414. It prevents the expansion column 414 from being extended too far, causing excessive pressure on the patient's oral cavity, causing injury to the patient's oral tissue, and causing discomfort to the patient. When the oral expansion device is finished, the connecting column 413 and the expansion column 414 can be retracted into the support column 20 as a whole. After the connecting column 413 and the expansion column 414 are retracted into the support column 20 as a whole, the connecting column 413 and the expansion column 414 are retracted into the support column 20 as a whole. An electric control door is set at the front end of the support column 20 to ensure that after the expansion column 414 is retracted into the support column 20, the electric control door is closed to make the support column 20 airtight.

[0068] In other embodiments, reference Figure 4 , Figure 5 and Fig.12The oral expansion device also includes a disinfection component 70, which includes a liquid injection plate 71. The liquid injection plate 71 is arranged on the support column 20. The liquid injection plate 71 is provided with a liquid injection head 711 and a liquid spraying groove 712. The liquid injection head 711 and the liquid spraying groove 712 are connected through, and the liquid spraying groove 712 is used to inject disinfectant into the support column 20. An external disinfectant injection pump is connected to the liquid injection head 711 to inject the disinfectant into the liquid injection plate 71. An electric control door is arranged at the front end of the support column 20 to ensure that after the expansion column 414 is retracted into the support column 20, the electric control door is closed to make the support column 20 airtight, so as to ensure that the disinfectant can be filled in the support column 20 and the expansion column 414 is immersed and disinfected. After the disinfection is completed, the electric control door is opened, and the expansion column 414 is pushed out from the support column 20 to perform the oral expansion operation. The disinfectant is injected into the injection head 711 by the disinfectant injection pump, and the disinfectant is introduced into the multiple spray grooves 712 at the top of the support column 20 through the injection plate 71, and the spray grooves 712 spray the disinfectant from top to bottom to the outside of the expansion column 4. After the disinfectant is injected into the support column 20 to submerge the expansion column 4, and after the required time for soaking and disinfection, the disinfectant in the support column 20 is sequentially pumped into the second suction hole 412b, the first suction hole 412a, the second suction groove 411b and the first suction groove 411a by the suction pump externally connected to the suction pipe 42, so that the disinfectant flows therethrough, and the second suction hole 412b, the first suction hole 412a, the second suction groove 411b and the first suction groove 411a are disinfected.

[0069] In addition, the oral cavity expansion device also includes a liquid discharge head 713, which is arranged on the bottom side of the support column 20, and a waste liquid pipe is externally connected to the liquid discharge head 713 to discharge the waste liquid after disinfection. After the inside of the device is disinfected, the disinfectant is discharged from the suction pipe 42 using the second suction hole 412b, the first suction hole 412a, the second suction groove 411b and the first suction groove 411a. The disinfectant that cannot be discharged by the above method can be discharged through the liquid discharge head 713, thereby completing the disinfection of the expansion column 4 and ensuring that the expansion column 4 can be reused.

[0070] Two sliders 413b are provided at one end of the connecting column 413 close to the supporting column 20, and the two sliders 413b are symmetrically arranged on both sides of the supporting column 20. Two sliding rods 64 are arranged inside the supporting column 20 along the extension direction of the supporting column 20. One end of the sliding rod 64 is fixedly connected to the shell of the supporting column 20, and the other end is sleeved and connected to the slider 413b. The second spring 65 is arranged between the supporting column 20 and the slider 413b, and is sleeved on the sliding rod 64. When the connecting column 413 is retracted into the supporting column 20, the second spring 65 is compressed.

[0071] When the reel 62 pulls the connecting column 413 into the support column 20 by winding the wire drawing rope 63, the connecting column 413 drives the sliders 413b on both sides to slide on the slide bars 64 on both sides respectively. At the same time, the sliders 413b will squeeze the second spring 65 to shrink it, and then cooperate with the wire drawing rope 63 to pull the connecting column 413 to retract the expansion column 4 into the support column 20. After disinfection, the second motor 61 drives the reel 62 to reverse and release the wound wire drawing rope 63. At this time, the elastic force of the second spring 65 is used to push the slider 413b to drive the connecting column 413 and the expansion column 4 to move out of the support column 20, so that the push-out and reset operation of the expansion column 4 can be completed.

[0072] Because the connecting pin 413a is inserted into the expansion column 414 and the two are detachably connected, a plurality of first fixing grooves 413a1 are provided on the expansion column 414, and a plurality of second fixing grooves 414b are provided on the expansion column 414. The number of the first fixing grooves 413a1 and the second fixing grooves 414b are equal, and the positions correspond one to one. The first fixing grooves 413a1 and the second fixing grooves 414b are connected by a fixing pin 80 so as to fix the expansion column 414 on the connecting pin 413a.

[0073] Unscrew the fixing pin 80 from the first fixing groove 413a1 and the second fixing groove 414b, and pull the expansion column 414 out from the outside of the connecting pin 413a, and then the expansion column 414 can be removed. According to actual needs, the expansion column 414 can be disassembled and assembled, and the expansion column 414 of different lengths can be replaced to suit the oral use of different patients.

[0074] The principle and method of the oral expansion device will be introduced in detail below.

[0075] First, the support adjustment is performed. After the support frame 10 is placed at the position of the patient's mouth, the four support columns 20 are inserted into the patient's mouth and symmetrically placed on the surrounding sides of the patient's mouth. Each movable component 30 corresponds to a support column 20. The four movable components 30 are symmetrically arranged on both sides of the support frame 10. Since the sliding block 31 is arranged on the moving rod 32, the sliding block 31 can slide in the slide groove 11 along the extension direction of the slide groove 11, thereby driving the moving rod 32 to move up and down in the extension direction of the slide groove 11, and then driving the support column 20 to move up and down in the extension direction of the slide groove 11, so that the patient's mouth can be expanded up and down. Because each sliding block 31 is provided with an avoidance hole, the moving rod 32 passes through the avoidance hole and is slidably connected to the sliding block 31, and the moving rod 32 can move in the extension direction perpendicular to the slide groove 11, so that the support column 20 moves along the extension direction perpendicular to the slide groove 11, so that the patient's mouth can be expanded left and right. Each support column 20 can be moved left and right or up and down independently, which increases the flexibility of the device and makes it more suitable for patients with different mouth shapes. In this way, the patient's mouth can be expanded to allow the doctor to examine the patient's dental pulp.

[0076] Secondly, liquid suction and discharge are performed. A plurality of first suction holes 412a are set in the extension direction of the connecting pin 413a, and a plurality of second suction holes 412b are set in the extension direction of the expansion column 414. The plurality of first suction holes 412a and the plurality of second suction holes 412b correspond to each other one by one and are connected through. The suction tube 42 is externally connected to a suction pump, and the expansion column 414 is in direct contact with the oral tissue. The suction pump is used to generate a certain suction force to suck the saliva produced in the oral cavity into the first suction hole 412a and the second suction hole 412b, and pass through the second suction groove 411b and the first suction groove 411a at one time, and finally enter the suction tube 42, and then be extracted by the suction pump. Since the suction hole assembly 412 is evenly distributed on the outer surface of the suction column assembly 41, it is convenient for the suction column assembly 41 to suck saliva from all directions, so that the saliva continuously produced in the patient's mouth can be continuously extracted.

[0077] During use, when saliva is sucked, some tissues in the cavity will inevitably be sucked into the second suction hole 412b under the action of suction. The blockage of the second suction hole 412b will affect the extraction of saliva and cause oral discomfort in the patient. Figure 8 As shown in the rotation direction of the middle gear 512, when the gear 512 rotates clockwise, it will drive the tooth plate 513 to move clockwise, and then the tooth plate 513 can drive the push ring 53 to rotate clockwise. Figure 7 At this time, the push block 531 can push the push plate 52 out of the groove 414a, and the push plate 52 can push the oral tissue sucked into the second suction hole 412b out of the second suction hole 412b. The reciprocating rotation of the first motor 511 drives the push block 531 to reciprocately push the push plate 52 out of the groove 414a, so that the tissue sucked into the second suction hole 412b can be continuously pushed out, preventing the oral tissue from being sucked into the second suction hole 412b for a long time, causing discomfort to the patient's mouth.

[0078] Then the device is restored. When using the oral expansion device, due to the different depths of the oral cavity of different patients, for patients with shallow oral cavity, the second motor 61 drives the reel 62 to rotate, and one end of the wire drawing rope 63 is wound around the reel 62, so that the length of the wire drawing rope 63 can be continuously shortened. The other end of the wire drawing rope 63 is fixedly connected to the connecting column 413, and the connecting column 413 is slidably connected to the support column 20. The connecting column 413 is sleeved in the support column 20 and can be extended and retracted relative to the support column 20. The shortening of the wire drawing rope 63 will drive the connecting column 413 to retract the support column 20, and then will also drive the contraction of the expansion column 414. It prevents the expansion column 414 from being extended too far, causing excessive pressure on the patient's oral cavity, causing the patient's oral tissue to be injured, and causing the patient to feel uncomfortable. When the oral expansion device is finished, the connecting column 413 and the expansion column 414 can be retracted into the support column 20 as a whole.

[0079] Finally, disinfection is performed, and after the connecting column 413 and the expansion column 414 are retracted into the support column 20 as a whole, the connecting column 413 and the expansion column 414 are retracted into the support column 20 as a whole. An electric control door is arranged at the front end of the support column 20 to ensure that after the expansion column 414 is retracted into the support column 20, the electric control door is closed to make the support column 20 airtight.

[0080] The content of this application is not limited to the examples listed in the embodiments, and any equivalent changes made to the technical solution of this application by ordinary technicians in this field after reading the description of this application are covered by the claims of this application.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An oral dilation device, characterized in that: include: A support frame (10), wherein the support frame (10) is located in the patient's oral cavity; A plurality of support columns (20), wherein the plurality of support columns (20) are symmetrically arranged around the patient's oral cavity, and the support columns (20) are in contact with the patient's oral cavity tissue and are used to expand the size of the oral cavity; A plurality of movable components (30), each of the movable components (30) corresponds to one of the support columns (20), the plurality of movable components (30) are symmetrically arranged on both sides of the support frame (10), one end of the movable component (30) is slidably connected to the support frame (10), and the other end is fixedly connected to the column body of the support column (20), and the movable component (30) is used to adjust the position of the support column (20); A plurality of liquid suction components (40), each of which is connected to one end of a support column (20), and the liquid suction component (40) is used to suck saliva produced in the patient's mouth.

2. The oral dilation device according to claim 1, characterized in that: Each of the moving components (30) comprises a sliding block (31) and a moving rod (32), one end of the moving rod (32) is fixedly connected to the column body of the support column (20), and the sliding block (31) is arranged on the moving rod (32); A plurality of slide grooves (11) are symmetrically arranged along the extension direction of the side frames on both sides of the support frame (10), each of the slide grooves (11) corresponds to a sliding block (31), and the sliding block (31) can slide in the slide groove (11) along the extension direction of the slide groove (11) to enable the support column (20) to move along the extension direction of the slide groove (11).

3. The oral dilation device according to claim 2, characterized in that: Each of the sliding blocks (31) is provided with an avoidance hole, and the moving rod (32) passes through the avoidance hole and is slidably connected to the sliding block (31). The moving rod (32) can move in an extension direction perpendicular to the slide groove (11), so that the support column (20) moves along the extension direction perpendicular to the slide groove (11).

4. The oral dilation device according to claim 1, characterized in that: The liquid suction component (40) comprises a suction column component (41) and a suction pipe (42), wherein the suction pipe (42) is arranged in the support column (20), a suction groove component (411) is arranged inside the suction column component (41), one end of the suction pipe (42) is connected to the suction groove component (411), and the other end is connected to the suction pump; The surface of the suction column assembly (41) is provided with a plurality of suction hole assemblies (412), and the plurality of suction hole assemblies (412) are evenly distributed in the extension direction of the suction column assembly (41), and the suction hole assemblies (412) are connected in a through-connection with the suction groove assembly (411).

5. The oral dilation device according to claim 4, characterized in that: The suction column assembly (41) comprises a connecting column (413) and an expansion column (414), wherein the connecting column (413) comprises a connecting pin (413a), and the expansion column (414) is a hollow structure, wherein one end of the connecting column (413) is connected to the support column (20), and the connecting pin (413a) at the other end is inserted into the expansion column (414); The suction hole assembly (412) comprises a plurality of first suction holes (412a) and a plurality of second suction holes (412b), the plurality of first suction holes (412a) are evenly distributed in the extension direction of the connecting pin (413a), the plurality of second suction holes (412b) are evenly distributed in the extension direction of the expansion column (414), the plurality of first suction holes (412a) and the plurality of second suction holes (412b) correspond to each other one by one and are connected through. The suction groove assembly (411) includes a first suction groove (411a) and a second suction groove (411b), wherein the first suction groove (411a) is arranged in the connecting column (413), and the second suction groove (411b) is arranged in the expansion column (414), one end of the first suction groove (411a) is connected to the suction pipe (42), and the other end is connected to the second suction groove (411b), and a plurality of the first suction holes (412a) are connected to the first suction groove (411a).

6. The oral dilation device according to claim 5, characterized in that: It also includes an anti-suction assembly (50), the anti-suction assembly (50) including a first driving mechanism (51), a plurality of push plates (52), two push rings (53) and a plurality of combining columns (54), the expansion column (414) being provided with a plurality of grooves (414a) in a radial direction, the grooves (414a) being arranged on both sides of the extension direction of each of the second suction holes (412b); The two push rings (53) are arranged in the expansion column (414) and are respectively arranged at the two ends of the expansion column (414). The plurality of combining columns (54) are used to connect the two push rings (53) so that the two push rings (53) can rotate synchronously. The push ring (53) is provided with a plurality of push blocks (531) in the circumference thereof. The number of the push blocks (531) is equal to the number of the grooves (414a), and the positions thereof correspond. The first driving mechanism (51) is drivingly connected to one of the push rings (53) for driving the push ring (53) to rotate, and the push block (531) abuts against the push plate (52) so that the push block (531) pushes the push plate (52) out of the groove (414a).

7. The oral dilation device according to claim 6, characterized in that: The first driving mechanism (51) comprises a first motor (511), a gear (512) and a toothed plate (513); the first motor (511) drives the gear (512) to rotate; the gear (512) and the toothed plate (513) are meshedly connected; and the toothed plate (513) is fixedly connected to the push ring (53).

8. The oral dilation device according to claim 6, characterized in that: The push plate (52) further comprises a plurality of sleeve blocks (521), each end of each push plate (52) being provided with two sleeve blocks (521), and the sleeve blocks (521) being symmetrically arranged on both sides of each end of the push plate (52); The anti-suction assembly (50) further comprises a plurality of first guide rods and a plurality of first springs (55), wherein the number of the first guide rods is equal to the number of the sleeve blocks (521), one end of the first guide rod is fixedly connected to the shell of the expansion column (414), and the other end is sleeve-connected to the sleeve block (521); The number of the first springs (55) is equal to the number of the first guide rods. The first springs (55) are arranged between the expansion column (414) and the sleeve block (521), and are sleeved on the first guide rods.

9. The oral dilation device according to claim 5, characterized in that: It also includes two second drive assemblies (60), which are arranged at one end of the support column (20) away from the connecting column (413) and are symmetrically arranged on both sides of the support column (20); Each of the second driving components (60) comprises a second motor (61), a reel (62) and a wire drawing rope (63); the second motor (61) is arranged on the support column (20); one end of the wire drawing rope (63) is wound around the reel (62), and the other end is fixedly connected to the connecting column (413); the second motor (61) is drivingly connected to the reel (62) to drive the connecting column (413) to be retracted into the support column (20); It also includes two slide bars (64) and two second springs (65). Two slide bars (413b) are provided at one end of the connecting column (413) close to the supporting column (20). The two slide bars (413b) are symmetrically arranged on both sides of the supporting column (20). The two slide bars (64) are arranged inside the supporting column (20) along the extension direction of the supporting column (20). One end of the slide bar (64) is fixedly connected to the shell of the supporting column (20), and the other end is sleeved and connected to the slide bar (413b). The second spring (65) is arranged between the supporting column (20) and the slide bar (413b), and sleeved on the slide bar (64). When the connecting column (413) is retracted into the supporting column (20), the second spring (65) is compressed.

10. The oral dilation device according to claim 9, characterized in that: The disinfection assembly (70) further comprises a liquid injection plate (71), wherein the liquid injection plate (71) is arranged on the support column (20), and the liquid injection plate (71) is provided with a liquid injection head (711) and a liquid spraying groove (712), wherein the liquid injection head (711) is used to inject disinfectant into the liquid injection plate (71), and the liquid spraying groove (712) is connected to the support column (20), and the liquid spraying groove (712) is used to inject disinfectant into the support column (20). And / or, it further comprises a liquid drain head (713), wherein the liquid drain head (713) is arranged on the bottom side of the support column (20) and is used to drain the liquid in the support column (20).

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