Mouth opening device for oral surgery

Abstract

The invention relates to a mouth opening device for oral surgery, which comprises two shells with notches, a plurality of connecting pieces, a plurality of connecting pieces, a plurality of connecting pieces and a plurality of connecting pieces, and is characterized in that the two shells are symmetrically distributed left and right; the connecting plate is fixedly connected between the two shells; the opening mechanism comprises an arc-shaped plate, a sliding plate and a moving frame which are sequentially arranged from top to bottom, the two ends of the arc-shaped plate are fixedly connected to the tops of the two shells respectively, the moving frame is connected with the shells through a lifting mechanism, the two ends of the sliding plate are supported on the moving frame through extension springs, and contact plates are arranged on the arc-shaped plate and the sliding plate; the contact plate is used for being placed between the upper jaw and the lower jaw of a patient and is driven by the lifting mechanism to open the oral cavity of the patient. The unfolding mechanism comprises hook plates which are arranged in a bilateral symmetry mode, the two hook plates are connected with the arc-shaped plate through a translation mechanism, and the hook plates are used for being placed in the oral cavity of the patient, horizontally and symmetrically move under driving of the translation mechanism and used for opening the two sides of the oral cavity of the patient. According to the technical scheme, the lower jaw of a patient can be buffered, and the mouth opening effect is enhanced.

Description

Technical Field

[0001] The invention belongs to the technical field of oral surgery, and in particular relates to an opening device for oral surgery. Background Art

[0002] During the clinical diagnosis and treatment and surgical procedures of oral surgery, in order to facilitate the relevant medical operations, it is necessary to keep the patient's mouth in a suitable open state. When performing medical operations, the patient is usually asked to open his mouth and an opener is placed in the patient's mouth. The opener is used to restrict the patient's oral closure to achieve the purpose of opening.

[0003] Since the sizes of patients' mouths vary, the existing opening device is not convenient for controlling the size of the opening according to the size of the patient's mouth when opening the patient's mouth, and it is difficult to cushion the patient's lower jaw while opening the mouth, which easily causes discomfort to the patient when opening the mouth, and the mouth is easily blocked after opening. When opening the mouth, the existing opening device is difficult to open the patient's mouth to both sides while holding the mouth open, resulting in less operating space for staff during subsequent medical operations, resulting in poor opening effect. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to remedy the deficiencies of the prior art and provide an opening device for oral surgery.

[0005] To solve the above technical problems, the technical solution of the present invention is: An opening device for oral surgery, comprising: Two shells with notches, the two shells are symmetrically distributed on the left and right, with the notches facing each other; A connecting plate, fixedly connected between the two shells; The opening mechanism includes an arc-shaped plate, a sliding plate, and a movable frame arranged in an upper and lower order. The ends of the arc-shaped plate are respectively fixed to the tops of the two shells. The movable frame is connected to the shells via a lifting mechanism. The ends of the sliding plate are supported on the movable frame by tension springs. Both the arc-shaped plate and the sliding plate are provided with a contact plate. The contact plate is used to be placed between the patient's upper and lower jaws, and is driven by the lifting mechanism to open the patient's mouth. The unfolding mechanism includes hook plates that are symmetrically arranged on the left and right. The two hook plates are connected to the arc plate through a translation mechanism. The hook plates are used to be placed in the patient's mouth and move horizontally symmetrically under the drive of the translation mechanism to open the two sides of the patient's mouth.

[0006] Furthermore, the lifting mechanism includes a screw rod, a guide rod and a pair of guide rails. The top and bottom of the screw rod are rotatably connected to the front of one shell, the top and bottom of the guide rod are fixedly connected to the front of the other shell, and the pair of guide rails are fixedly connected to the rear of the two shells respectively; the screw rod is connected to the movable frame by a threaded connection, the guide rod and the pair of guide rails are slidably connected to the movable frame, and the movable frame is driven up and down by rotating the screw rod.

[0007] Furthermore, the guide rails are of arc-shaped structure, and sliding rings are slidably connected to the two guide rails. Two telescopic plates are rotatably connected to the two sliding rings, and the telescopic ends of the four telescopic plates are fixed to the movable frame.

[0008] Furthermore, two moving blocks are symmetrically slidably connected to the arc plate and the sliding plate, totaling four moving blocks. There are four contact plates, and the four contact plates are fixedly connected to the rear ends of the four moving blocks respectively. A handle is provided at the front end of each moving block.

[0009] Furthermore, each of the contact plates is rotatably connected to two rotating rollers, and the rotating rollers are used to contact the patient's teeth.

[0010] Furthermore, the rotating roller is made of rubber.

[0011] Furthermore, in the unfolding mechanism, the two hook plates are connected to the curved plate for left and right sliding movement; the translation mechanism includes a pair of slide rails symmetrically arranged on the left and right, the slide rails are fixedly connected to the movable frame, and a guide groove is provided on the slide rail, the guide groove consists of a vertical groove and an oblique groove, the vertical groove is located above the oblique groove and is connected; the front end of the hook plate is fixedly connected to a connecting rod, the connecting rod matches and guides the vertical groove and oblique groove on the corresponding slide rail, and when the movable frame gradually moves downward, the connecting rod first matches and guides the oblique groove of the slide rail, and then matches and guides the vertical groove of the slide rail.

[0012] Furthermore, one end of the hook plate is a barbed hook structure.

[0013] Furthermore, each of the hook plates is correspondingly provided with an auxiliary mechanism for expanding the contact area between the deployment mechanism and both sides of the patient's mouth; the auxiliary mechanism includes an inclined block, a movable plate and an extension plate, the end of the inclined block away from the wedge is fixedly connected to the corresponding guide rail, the wedge inclined surface of the inclined block faces downward, and the wedge inclined surface of the inclined block is slidingly connected to the top of the movable plate; the movable plate is slidably connected to the inner wall of the hook plate, and the extension plate is also clamped on the inner wall of the hook plate, and three compression springs are connected between the movable plate and the extension plate; when the hook plate moves, it will drive the movable plate to perform a horizontal and downward compound movement along the wedge inclined surface of the inclined block, thereby driving the extension plate to move downward and gradually extend out of the hook plate.

[0014] The beneficial effects that can be achieved by the present invention are: (1) The sliding plate is supported on the mobile frame by a tension spring. Under the action of the tension spring, the sliding plate has a certain amount of movement space, which controls the size of the opening according to the size of the patient's mouth and cushions the patient's mandible, thereby reducing the patient's discomfort when opening the mouth.

[0015] (2) The setting of the unfolding mechanism enables the two hook plates to move to both sides. When the hook plates move to both sides, they will stretch the patient's mouth to both sides, thereby stretching the sides of the patient's mouth while opening the mouth, thereby allowing more operating space in subsequent operations, thereby enhancing the opening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the three-dimensional structure of an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of a sectional three-dimensional structure of an embodiment of the present invention.

[0018] Figure 3 Schematic diagram of the cross-sectional three-dimensional structure of the shell in an embodiment of the present invention.

[0019] Figure 4 Schematic diagram of the three-dimensional structure of the opening mechanism according to an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the decomposition of the opening mechanism of an embodiment of the present invention.

[0021] Figure 6 Schematic diagram of the deployment mechanism in Example 1 of the present invention.

[0022] Figure 7 This is a schematic diagram of the decomposition of the deployment mechanism in Example 1 of the present invention.

[0023] Figure 8 Schematic diagram of the three-dimensional structure of the opening mechanism in an embodiment of the present invention.

[0024] Figure 9 Schematic diagram of the three-dimensional structure of the sliding assembly in an embodiment of the present invention.

[0025] Figure 10 Schematic diagram of the deployment mechanism and auxiliary mechanism in Example 2 of the present invention.

[0026] Figure 11 This is a schematic diagram of the cross-sectional three-dimensional structure of the auxiliary mechanism in Example 2 of the present invention.

[0027] Figure 12 This is a schematic diagram of the auxiliary mechanism in Example 2 of the present invention.

[0028] In the figure: 1-housing, 2-connecting plate, 3-opening mechanism, 31-guide rail, 32-arc plate, 321-slide groove, 33-screw rod, 34-guide rod, 35-movable frame, 36-sliding ring, 37-telescopic plate, 38-sliding plate, 39-tension spring, 4-unfolding mechanism, 41-slider, 42-hook plate, 43-connecting rod, 44-slide rail, 45-guide groove, 5-sliding assembly, 51-moving block, 52-contact plate, 53-rotating roller, 54-handle, 6-auxiliary mechanism, 61-oblique block, 62-movable plate, 63-extension plate, 64-compression spring. DETAILED DESCRIPTION

[0029] The following further describes the technical solution with reference to specific embodiments. It should be noted that terms such as "up," "down," "left," and "right" used herein to indicate directions refer only to the positions of the structures depicted in the corresponding drawings. Component numbers, such as "first" and "second," are used solely to distinguish the components being described and do not convey any sequential or technical meaning. References to "connected" and "coupled" in this application, unless otherwise specified, include both direct and indirect connections (couplings).

[0030] Example 1: An opening device for oral surgery, such as Figures 1-9 Shown, including: Two shells 1 with notches; The connecting plate 2 is fixed between the two shells 1; An opening mechanism 3, used for opening the oral cavity, is provided in the two housings 1; The unfolding mechanism 4 is used to open the two sides, and the unfolding mechanism 4 is arranged on the opening mechanism 3.

[0031] The opening mechanism 3 includes: guide rails 31 respectively fixed to the two housings 1; an arc plate 32 fixed between the tops of the two guide rails 31, and a slide groove 321 is opened at the bottom of the arc plate 32; a screw rod 33 rotatably connected to one of the guide rails 31, and the top of the screw rod 33 is rotatably connected to the arc plate 32; a guide rod 34 fixed between the other guide rail 31 and the arc plate 32; a movable frame 35 is threadedly connected to the screw rod 33, and the movable frame 35 is slidably connected to the guide rod 34; a sliding ring 36 is slidably connected to each of the two guide rails 31, and two telescopic plates 37 are rotatably connected to each of the two sliding rings, and the telescopic ends of the four telescopic plates 37 are fixed to the movable frame 35; a sliding plate 38 is slidably connected between the two guide rails 31, and a tension spring 39 is connected between the sliding plate 38 and the two moving rings, and a sliding assembly 5 is provided on the arc plate 32 and the sliding plate 38.

[0032] The guide rail 31 is an arc-shaped structure, and the guide rail 31 with the arc-shaped structure is used to adapt to the opening angle.

[0033] The sliding assembly 5 includes: four moving blocks 51, two of which are slidingly connected to the arc plate 32, and the other two are slidingly connected to the sliding plate 38. The four moving blocks 51 are fixedly connected to a contact plate 52, and each of the contact plates 52 is rotatably connected to two rotating rollers 53; a handle 54 is provided on one side of each moving block 51.

[0034] The rotating roller 53 is made of rubber, and the rubber rotating roller 53 is used to prevent damage.

[0035] The unfolding mechanism 4 includes: two sliders 41 slidably connected to the slide groove 321 of the arc plate 32; hook plates 42 respectively fixed to the bottom of the two sliders 41; notches are formed on the two hook plates 42, and connecting rods 43 are respectively fixed to the two hook plates 42; slide rails 44 are respectively fixed to the two sides of the movable frame 35, and guide grooves 45 are formed on the two slide rails 44. The two connecting rods 43 are slidably connected to the two guide grooves 45.

[0036] The guide groove 45 consists of a vertical groove and an oblique groove. The vertical groove of the guide groove 45 is located above and connected to the oblique groove of the guide groove 45 . One end of the connecting rod 43 is located in the lower part of the oblique groove of the guide groove 45 .

[0037] One end of the hook plate 42 is a barb-shaped structure, and the hook plate 42 with a barb-shaped structure at one end is used to prevent separation.

[0038] When the patient's mouth needs to be opened, the staff first puts the four contact plates 52 between the patient's upper jaw and lower jaw, and then rotates the screw rod 33. The rotation of the screw rod 33 will cause the movable frame 35 to move downward through the thread on the screw rod 33. When the movable frame 35 moves downward, it will drive the sliding ring 36 to move along the guide rail 31 through the telescopic plate 37. When the sliding ring 36 moves along the guide rail 31, the telescopic end of the telescopic plate 37 will gradually extend. When the movable ring moves downward, it will drive the sliding plate 38 to move along the guide rail 31 through the tension spring 39. When the sliding plate 38 moves, the patient's lower jaw is opened through the moving block 51 and the contact plate 52 on the sliding plate 38. When the patient's mouth is opened to the appropriate size, the staff no longer rotates the screw rod 33. In this way, the rotation of the screw rod 33 will cause the movable ring to move along the guide rail 31 through the movable frame 35 and the telescopic plate 37. When the movable ring moves, the sliding plate 38 moves to open the patient's lower jaw. At the same time, under the action of the tension spring 39, the sliding plate 38 has a certain amount of movement space, and the size of the opening can be controlled according to the size of the patient's mouth. At the same time, it cushions the patient's lower jaw, thereby reducing the patient's discomfort when opening the mouth. After the operation is completed, the staff rotates the screw rod 33 in the opposite direction. The reversal of the screw rod 33 will cause the movable frame 35 to move in the opposite direction through the thread. The reverse movement of the movable frame 35 will drive the movable ring to move in the opposite direction along the guide rail 31 through the telescopic plate 37. At the same time, the telescopic end of the telescopic plate 37 will retract. When the movable ring moves in the opposite direction, it will drive the sliding plate 38 to reset in the opposite direction through the tension spring 39. After the reset is completed, the staff stops rotating the screw rod 33. After the opening is completed, the staff can move the movable block 51 through the handle 54. When the movable block 51 moves, it will drive the rotating roller 53 to move through the contact plate 52. When the rotating roller 53 moves, it will contact the patient's teeth and cause the rotating roller 53 to rotate. When performing medical operations, the staff can move the position of the movable block 51, and then adjust the position of the support point according to the part where medical operations are required, thereby preventing the oral cavity from being blocked, which is more convenient for the staff to operate. After the operation is completed, the staff will reset the sliding plate 38, and then the staff will reset the four movable blocks 51 through the handle 54.When the moving frame 35 moves, it will drive the two slide rails 44 to move downward, and the oblique grooves of the two guide grooves 45 will squeeze the two connecting rods 43 to move to the side away from each other. Under the action of the slider 41, the two hook plates 42 will move away from each other along the slide groove 321 through the connecting rod 43. Then the two slide rails 44 continue to move downward. At this time, the two connecting rods 43 will enter the vertical grooves of the two guide grooves 45 and no longer move. In this way, when the moving frame 35 moves, it will squeeze the connecting rod 43 through the slide rails 44 and the guide grooves 45, so that the two hook plates 42 moves to both sides, and the hook plates 42 move to both sides, thereby stretching the patient's mouth to both sides, thereby opening the mouth and stretching both sides of the patient's mouth, thereby allowing more operating space during subsequent operations, thereby enhancing the opening effect; when the movable frame 35 moves in the opposite direction, it drives the two slide rails 44 to move in the opposite direction. After the two slide rails 44 move in the opposite direction for a distance, the guide grooves 45 on the two slide rails 44 will respectively squeeze the two connecting rods 43, causing the two hook plates 42 to move towards each other. Once the hook plates 42 move to the initial position, it is OK.

[0039] Example 2: Based on Example 1, Figure 10-11 As shown: It also includes an auxiliary mechanism 6 for expanding the contact area of ​​the unfolding mechanism 4, which is arranged on the hook plate 42. The auxiliary mechanism 6 includes: inclined blocks 61 respectively fixed to the top of the two guide rails 31; movable plates 62 respectively slidably connected to the inner walls of the two hook plates 42; the two inclined blocks 61 are respectively slidably connected to the top of the two movable plates 62; the expansion plates 63 are respectively clamped on the inner walls of the two hook plates 42; three compression springs 64 are connected between the two movable plates 62 and the two expansion plates 63 respectively.

[0040] The bottom surface of the inclined block 61 is an inclined surface structure, and the inclined surface structure is used to press the movable plate 62 .

[0041] When the hook plate 42 moves, the movable plate 62 will be driven to move. When the movable plate 62 moves, the inclined block 61 will squeeze the movable plate 62 through the inclined surface to make the movable plate 62 move downward. When the movable plate 62 moves downward, the compression spring 64 will squeeze the expansion plate 63 downward. The expansion plate 63 will gradually extend out from the hook plate 42 when it moves sideways, and then extend the expansion plate 63 as the hook plate 42 moves sideways, thereby increasing the contact area with the patient's mouth, thereby avoiding separation from the patient's mouth; when the hook plate 42 is reset, the expansion plate 63 will be driven to move in the opposite direction through the movable plate 62 and the tension spring 39, and at the same time, the reset of the sliding plate 38 will squeeze the bottom of the expansion plate 63 to make the expansion plate 63 retract into the hook plate 42, and wait until the expansion plate 63 is completely reset.

[0042] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An opening device for oral surgery, characterized by: include: Two shells (1) with notches, the two shells (1) are symmetrically distributed on the left and right, and the notches face each other; A connecting plate (2) is fixedly connected between the two housings (1); An opening mechanism (3) includes an arc plate (32), a sliding plate (38) and a movable frame (35) arranged in an upper and lower order, wherein the two ends of the arc plate (32) are respectively fixed to the tops of the two shells (1), the movable frame (35) is connected to the shell (1) through a lifting mechanism, and the two ends of the sliding plate (38) are supported on the movable frame (35) through tension springs (39), and a contact plate (52) is provided on both the arc plate (32) and the sliding plate (38); the contact plate (52) is used to be placed between the upper jaw and the lower jaw of the patient, and to open the patient's mouth under the drive of the lifting mechanism; The unfolding mechanism (4) includes hook plates (42) that are symmetrically arranged on the left and right sides. The two hook plates (42) are connected to the arc-shaped plate (32) via a translation mechanism. The hook plates (42) are used to be placed in the patient's oral cavity and move horizontally and symmetrically under the drive of the translation mechanism to open the two sides of the patient's oral cavity.

2. The oral surgery opening device according to claim 1, wherein: The lifting mechanism includes a screw rod (33), a guide rod (34) and a pair of guide rails (31). The top and bottom of the screw rod (33) are rotatably connected to the front of one housing (1), the top and bottom of the guide rod (34) are fixedly connected to the front of the other housing (1), and the pair of guide rails (31) are respectively fixedly connected to the rear of the two housings (1). The screw rod (33) is connected to the movable frame (35) by a thread, and the guide rod (34) and the pair of guide rails (31) are slidably connected to the movable frame (35). The movable frame (35) is driven to move up and down by rotating the screw rod (33).

3. The oral surgery opening device according to claim 2, wherein: The guide rail (31) is an arc-shaped structure. The two guide rails (31) are slidably connected to a sliding ring (36). The two sliding rings (36) are rotatably connected to two telescopic plates (37). The telescopic ends of the four telescopic plates (37) are fixedly connected to the movable frame (35).

4. The oral surgery opening device according to claim 1, wherein: Two moving blocks (51) are symmetrically slidably connected to the arc plate (32) and the sliding plate (38), totaling four moving blocks (51). The number of the contact plates (52) is four, and the four contact plates (52) are fixedly connected to the rear ends of the four moving blocks (51), respectively. The front end of each moving block (51) is provided with a handle (54).

5. The oral surgery opening device according to claim 4, characterized in that: Each of the contact plates (52) is rotatably connected to two rotating rollers (53), and the rotating rollers (53) are used to contact the patient's teeth.

6. The oral surgery opening device according to claim 5, characterized in that: The rotating roller (53) is made of rubber.

7. The oral surgery opening device according to claim 2, wherein: In the unfolding mechanism (4), the two hook plates (42) are connected to the arc plate (32) in a sliding manner left and right; the translation mechanism includes a pair of slide rails (44) symmetrically arranged left and right, the slide rails (44) are fixedly connected to the moving frame (35), and a guide groove (45) is provided on the slide rail (44), the guide groove (45) consists of a vertical groove and an oblique groove, and the vertical groove is located above the oblique groove and is connected; the front end of the hook plate (42) is fixedly connected to a connecting rod (43), and the connecting rod (43) matches and guides the vertical groove and the oblique groove on the corresponding slide rail (44). When the moving frame (35) gradually moves downward, the connecting rod (43) first matches and guides the oblique groove of the slide rail (44), and then matches and guides the vertical groove of the slide rail (44).

8. The opening device for oral surgery according to claim 1, characterized in that: One end of the hook plate (42) is a barbed hook structure.

9. The oral surgery opening device according to claim 2, wherein: Each hook plate (42) is provided with an auxiliary mechanism (6) for expanding the contact area between the deployment mechanism (4) and both sides of the patient's oral cavity; the auxiliary mechanism (6) includes an inclined block (61), a movable plate (62) and an extension plate (63); the end of the inclined block (61) away from the wedge is fixedly connected to the corresponding guide rail (31), the wedge inclined surface of the inclined block (61) faces downward, and the wedge inclined surface of the inclined block (61) is slidably connected to the top of the movable plate (62); the movable plate (62) is slidably connected to the inner wall of the hook plate (42) up and down, and the extension plate (63) is also clamped on the inner wall of the hook plate (42), and three compression springs (64) are connected between the movable plate (62) and the extension plate (63); when the hook plate (42) moves, it drives the movable plate (62) to perform a horizontal and downward composite movement along the wedge inclined surface of the inclined block (61), thereby driving the extension plate (63) to move downward and gradually extend out of the hook plate (42).

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