Oral cavity expanding device for oral cavity examination

Abstract

The utility model provides an oral cavity expander for oral cavity examination, which relates to the technical field of oral cavity examination and comprises an upper expanding plate and a lower expanding plate which are distributed in parallel, a first grab handle and a second grab handle, the first grab handle and the second grab handle are symmetrically hinged together, and the side walls, facing the inside of an oral cavity, of the two expanding plates are respectively bent towards the sides far away from each other to form blocking ends. Supporting rods obliquely extending towards the interiors of the corresponding hinge grooves are fixed to the ends of the first grab handle and the second grab handle correspondingly, and the first grab handle and the second grab handle rotate around the rotating position through pin shafts at the ends of the corresponding supporting rods, so that the first grab handle and the second grab handle horizontally swing left and right at notches of the hinge grooves to adjust the positions. The first grab handle and the second grab handle rotate around the hinged position to expand the gap between the two expanding and supporting plates, the mouth of a patient is expanded in an auxiliary mode, and the situation that the mouth of the patient is opened for a long time to bring soreness and swell feeling to cheek muscles of the mouth is avoided, and meanwhile the first grab handle and the second grab handle horizontally swing left and right at the notch of the hinged groove to adjust the position. The first grab handle and the second grab handle are prevented from blocking the examination sight of a doctor, and the doctor can conveniently perform oral examination operation.

Description

Technical Field

[0001] The utility model relates to the technical field of oral examination, in particular to an oral expander for oral examination. Background Art

[0002] Oral examination can check whether there is caries, periodontal health, wisdom teeth, missing teeth, and oral mucosal abnormalities. It can also check whether there are tumors or abnormal changes in the mouth. Usually, the doctor uses a tongue depressor to insert into the open mouth of the medical personnel and press the tongue for a comprehensive examination. The tongue depressor can only press the tongue and cannot expand the mouth. Therefore, opening the mouth for a long time will cause soreness and swelling in the cheek muscles of the mouth, which is extremely uncomfortable. The patient will involuntarily want to close the mouth, affecting the doctor's normal observation and inspection operations. Therefore, a mouth expander for oral examination is designed and produced here to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide an oral cavity expander for oral cavity inspection to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: an oral expander for oral examination, comprising:

[0005] Two expansion plates are arranged in parallel up and down, and a handle 1 and a handle 2 are symmetrically hinged together, and one side wall of the two expansion plates facing the oral cavity is bent to form a blocking end away from each other;

[0006] The two expansion plates are provided with a hinge groove on one side wall facing the outside of the oral cavity, and the ends of the handles 1 and 2 are fixed with support rods that extend obliquely into the corresponding hinge grooves. The ends of the support rods are provided with hinge notches, and a pin is rotatably provided between the side walls on both sides in the hinge notches. The pin rotates between the upper and lower side walls in the hinge groove. The handles 1 and 2 rotate around the rotating point using the corresponding pins at the ends of the support rods, so that the handles 1 and 2 can swing left and right horizontally at the notch of the hinge groove to adjust their positions. The support rod swings up and down between the upper and lower side edges of the hinge groove near the notch around the rotating point of the outer wall of the pin to adjust the inclination angle of the support rod when expanding the oral cavity.

[0007] In a further embodiment, a side wall at the intersection of the expansion plate and the blocking end is provided with a biting groove for engaging with teeth.

[0008] In a further embodiment, the width of the expansion plate is no greater than 1-1.5 cm.

[0009] In a further embodiment, two extension blocks are fixed to the side wall of the pin shaft facing the support rod, and arc-shaped spring pieces are fixed at the ends of the two extension blocks, and the two arc-shaped spring pieces extend to the upper and lower side walls of the support rod respectively, and the middle side walls of the upper and lower arc-shaped spring pieces are bent to the side away from each other, and the bent position side walls of the upper and lower arc-shaped spring pieces are respectively against the upper and lower side walls in the hinge groove.

[0010] In a further embodiment, the upper and lower side walls of the support rod are both provided with sliding grooves, and the ends of the two arc-shaped spring pieces opposite to each other extend into the corresponding sliding grooves respectively and slide in contact with the inner walls of the sliding grooves.

[0011] In a further embodiment, the two upper and lower arc-shaped spring pieces are fixed with protrusions at the bending positions of the side walls that are away from each other, and the upper and lower side walls in the hinge groove are provided with multiple grooves that are engaged with the protrusions. The multiple grooves located on the same horizontal plane are evenly spaced in a semicircular structure with the pin shaft as the center.

[0012] In a further embodiment, a semicircular hollow structure operating handle is fixed to one end of the handle 1 and the handle 2 away from the support rod, and the two operating handles are symmetrically distributed.

[0013] In a further embodiment, a stainless steel spring sheet is fixed to the end of the side wall of the operating handle of the second handle facing the other operating handle, and the end of the stainless steel spring sheet is bent and extended to form a stretching portion toward a side close to the hinged position of the first and second handles, and a clamping notch is provided on the outer wall of the bending position of the stretching portion, and a docking groove is provided on the side wall of the operating handle of the first handle facing the other operating handle, and a plurality of clamping blocks obliquely extending toward the hinged position of the first and second handles are fixed to the inner wall of the docking groove, the bending position of the stretching portion extends into the docking groove and sliders are rotatably provided on the side walls on both sides of the bending position, and guide grooves are provided on the side walls on both sides of the docking groove to be slidably engaged with the sliders;

[0014] Hold the two operating handles together with one hand, and the bending position of the stretching part of the stainless steel spring slides horizontally along the docking groove toward the side close to the hinge position of handle 1 and handle 2. After stopping and putting the two operating handles together, the engaging notch of the stretching part engages with the outer wall of the block at the corresponding position.

[0015] In a further embodiment, a pull ring is fixed to the end of the stretching portion.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model discloses an oral expander for oral examination, wherein two expansion plates are respectively placed between the upper and lower teeth, and at the same time, the side walls of the blocking parts of the two expansion plates are respectively pressed against the side walls of the upper and lower teeth facing the deep part of the oral cavity, and then the first and second handles are rotated around the hinged position to expand the gap between the two expansion plates, so as to assist in expanding the patient's mouth and avoid the soreness and swelling of the cheek muscles of the mouth caused by long-term opening of the mouth. At the same time, the first and second handles are horizontally swung left and right at the hinged groove to adjust their positions, so as to avoid the first and second handles blocking the doctor's inspection line of sight, thereby facilitating the doctor's oral examination operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0019] Figure 2 A half-section view of the expansion support plate structure of an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the support rod structure of an embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the assembly structure of the support rod, the pin shaft and two arc-shaped spring pieces according to an embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of a further improved structure of the pin shaft and two arc-shaped spring pieces in an embodiment of the utility model;

[0023] Figure 6 A half-section diagram of a further improved structure of the expansion support plate of an embodiment of the utility model;

[0024] Figure 7 A half-section diagram of the operating handle structure of an embodiment of the utility model;

[0025] Figure 8 This is a schematic diagram of the partial structure of the stainless steel spring piece according to an embodiment of the utility model;

[0026] Fig. 9 It is a schematic diagram of the bending of the tensile portion of the stainless steel spring sheet according to an embodiment of the utility model.

[0027] In the figure: 1. Handle 1; 2. Handle 2; 3. Expanding plate; 31. Biting groove; 32. Hinge groove; 4. Stainless steel spring piece; 41. Pull ring; 5. Support rod; 51. Pin shaft; 52. Arc-shaped spring piece; 53. Slide groove; 54. Bump; 6. Operating handle; 61. Block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment, this embodiment provides an oral expander for oral examination, comprising: two expansion plates 3 distributed in parallel up and down, and a handle 1 and a handle 2 symmetrically hinged together, the side walls of the two expansion plates 3 facing the oral cavity are bent to the sides away from each other to have blocking ends, the two expansion plates 3 are respectively placed between the upper and lower teeth, and the side walls of the blocking parts of the two expansion plates 3 are respectively against the side walls of the upper and lower teeth facing the deep side of the oral cavity, such as Figure 1 As shown, this prevents the expansion plate 3 from accidentally slipping off the teeth and causing discomfort by friction on the tooth tips.

[0030] The two expansion plates 3 have hinge grooves 32 on one side wall facing the outside of the oral cavity. The ends of the handles 1 and 2 are fixed with support rods 5 extending obliquely into the corresponding hinge grooves 32. The ends of the support rods 5 are provided with hinge notches. Figure 2 As shown, a pin 51 is rotatably arranged between the side walls on both sides of the hinged notch. Figure 3 As shown, the pin shaft 51 rotates between the upper and lower side walls in the hinge groove 32, the patient opens his mouth slightly, holds the ends of the handle 1 and the handle 2 2, puts the two expansion plates 3 into the oral cavity, and at the same time, the two expansion plates 3 are respectively placed against the upper and lower teeth, and the side walls of the blocking parts of the two expansion plates 3 are respectively placed against the side walls of the upper and lower teeth facing the deep part of the oral cavity. Then, the hinged handle 1 and the handle 2 2 rotate around the hinge position to expand the gap between the two expansion plates 3, which assists in expanding the patient's mouth and avoiding soreness and swelling of the cheek muscles caused by opening the mouth for a long time, while making it easier for the doctor to directly observe the inside of the oral cavity for inspection.

[0031] Furthermore, the handle 1 and the handle 2 rotate around the rotation point using the corresponding pin shaft 51 at the end of the support rod 5, and then the handle 1 and the handle 2 swing left and right horizontally at the notch of the hinge groove 32 to adjust the position, and the handle 1 and the handle 2 deviate from the middle position of the expansion plate 3, so as to avoid the handle 1 and the handle 2 blocking the doctor's inspection line of sight, thereby facilitating the doctor to perform oral examination operations. Figure 1 At the same time, a bite groove 31 for engaging with teeth is provided on the side wall at the intersection of the expansion plate 3 and the blocking end. Figure 2 As shown, the blocking end of the expansion plate 3 is against the tooth facing the deep part of the oral cavity, while the tip of the tooth is bitten into the biting groove 31, so as to prevent the expansion plate 3 from sliding misaligned on the tip of the tooth.

[0032] The width of the expansion plate 3 here is not more than 1-1.5 cm. This has the advantage of reducing the space occupied by the expansion plate 3 and avoiding bringing a greater burden to the internal space of the oral cavity.

[0033] In addition, the support rod 5 can swing up and down around the outer wall of the pin shaft 51 between the upper and lower edges of the hinge slot 32 near the slot to adjust the inclination of the support rod 5 when expanding the oral cavity. When the two support rods 5 are used to expand the upper and lower teeth to help expand the patient's mouth, the two expansion plates 3 will gradually form a V-shaped structure from a relatively flat state, and the blocking part and the contact surface between the expansion plate 3 and the teeth will creep, causing discomfort to the teeth. Therefore, during the expansion process, the support rod 5 swings up and down around the outer wall of the pin shaft 51 between the upper and lower edges of the hinge slot 32 near the slot to adjust the inclination of the support rod 5 when expanding the oral cavity, reduce the angle of the expansion plate 3 deviating from the plane, and avoid causing discomfort to the patient.

[0034] If there is no buffering medium between the upper and lower side walls of the support rod 5 and the upper and lower side walls in the hinge slot 32, the support rod 5 can swing freely between the upper and lower side walls in the hinge slot 32. Two extension blocks are fixed on the side wall facing the support rod 5 on the pin 51. The ends of the two extension blocks are fixed with arc-shaped spring pieces 52, and the two arc-shaped spring pieces 52 extend to the upper and lower side walls of the support rod 5 respectively. The middle side walls of the upper and lower arc-shaped spring pieces 52 are bent away from each other, and the side walls of the bent position of the upper and lower arc-shaped spring pieces 52 are respectively against the upper and lower side walls in the hinge slot 32. Figure 4 As shown, the upper and lower arc-shaped spring pieces 52 are respectively pressed against the upper and lower side walls of the hinge groove 32. Only when the handle 1 and the handle 2 are swung up and down with force, the arc-shaped spring piece 52 will be squeezed up and down by the support rod 5. The arc-shaped spring piece 52 is squeezed to produce tensile deformation and rebound potential energy, so as to avoid the support rod 5 from swinging up and down at will without external force intervention, affecting the stable support of the expansion plate 3.

[0035] In order to enhance the stability of the tensile deformation of the arc-shaped spring piece 52, a slide groove 53 is opened on the upper and lower side walls of the support rod 5. The ends of the two upper and lower arc-shaped spring pieces 52 respectively extend into the corresponding slide grooves 53 and slide in contact with the inner walls of the slide grooves 53. The arc-shaped spring piece 52 is squeezed and tensilely deformed, and slides along the corresponding inner walls of the slide grooves 53, thereby preventing the arc-shaped spring piece 52 from deviating from the support rod 5 and losing the supporting strength in the initial state.

[0036] There is no limit between the pin 51 and the upper and lower side walls of the hinge slot 32. The pin 51 will flip around the hinge slot 32 at will, and the control feeling is not strong. The two arc-shaped springs 52 facing each other are fixed with convex points 54 at the bending positions of the side walls away from each other. The upper and lower side walls of the hinge slot 32 are provided with multiple grooves that are engaged with the convex points 54. The multiple grooves on the same horizontal plane are evenly spaced in a semicircular structure with the pin 51 as the center. Figure 5 and Figure 6 As shown, after the expansion plate 3 is expanded between the upper and lower teeth, when the handle 1 and the handle 2 rotate around the rotation point using the corresponding support rod 5 end pin 51, the convex points 54 at the bending position of the arc-shaped spring sheet 52 sequentially pass over the corresponding grooves. When the rotation stops, the convex points 54 are stuck in the grooves at the corresponding positions. This has the advantage of preventing the support rod 5 from rotating arbitrarily without external force intervention, thereby preventing the positions of the handle 1 and the handle 2 from changing arbitrarily.

[0037] Furthermore, a semicircular hollow structure operating handle 6 is fixed to one end of the handle 1 and the handle 2 2 away from the support rod 5, and the two operating handles 6 are symmetrically distributed. By adding the operating handle 6, it is convenient to hold the handle 1 and the handle 2 2 together.

[0038] Moreover, a stainless steel spring sheet 4 is fixed to the end of the side wall of the operating handle 6 of the second handle 2 facing the other operating handle 6, and the end of the stainless steel spring sheet 4 is bent and extended to form a stretching portion near the hinged position of the first handle 1 and the second handle 2, and a clamping notch is provided on the outer wall of the bending position of the stretching portion. A docking groove is provided on the side wall of the operating handle 6 of the first handle 1 facing the other operating handle 6, and a plurality of clamping blocks 61 are fixed on the inner wall of the docking groove, which extend obliquely toward the hinged position of the first handle 1 and the second handle 2, and the bending position of the stretching portion extends into the docking groove and sliders are rotatably provided on the side walls of the bending position, and guide grooves are provided on the side walls of the docking groove to be slidably engaged with the sliders. Figure 7 and Figure 8 As shown, hold the two operating handles 6 together with one hand, and the bending position of the stretching portion of the stainless steel spring 4 slides horizontally along the docking groove toward the side close to the hinge position of the handle 1 and the handle 2 2. After the two operating handles 6 are stopped and put together, the engaging notch of the stretching portion is engaged with the outer wall of the block 61 at the corresponding position, so as to limit the gap between the two expansion plates 3 after expansion from changing, that is, stabilize the expandable mouth and free the doctor's hands.

[0039] like Fig. 9As shown, a pull ring 41 is fixed at the end of the stretching portion. The advantage of this is that when narrowing the gap between the two expansion plates 3, one needs to buckle one's fingers into the pull ring 41 and pull the stretching portion toward the side away from the hinged position of the grip 1 and the grip 2, so that the opening of the card machine gap is stretched and enlarged. At the same time, the stretching portion will be slightly lifted upward, so that the card connection gap will be separated from the card block 61, so as to reset the position of the stainless steel spring sheet 4 to its initial state, and then expand the end of the grip 1 and the grip 2 close to the operating handle 6, so that the gap between the two expansion plates 3 is narrowed, so as to facilitate removal from the patient's mouth.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oral expander for oral examination, characterized in that: include: Two expansion plates (3) arranged in parallel up and down, and a handle 1 (1) and a handle 2 (2) symmetrically hinged together, wherein the side walls of the two expansion plates (3) facing the oral cavity are respectively bent to form blocking ends away from each other; A hinge groove (32) is provided on one side wall of the two expansion plates (3) facing the outside of the oral cavity. A support rod (5) is fixed at the end of the handle 1 (1) and the handle 2 (2) and extends obliquely into the corresponding hinge groove (32). A hinge notch is provided at the end of the support rod (5). A pin shaft (51) is rotatably provided between the side walls on both sides of the hinge notch. The pin shaft (51) rotates between the upper and lower side walls in the hinge groove (32). The handle 1 (1) and the handle 2 (2) rotate around the rotation point using the corresponding pin shaft (51) at the end of the support rod (5), so that the handle 1 (1) and the handle 2 (2) can be horizontally swung left and right at the notch of the hinge groove (32) to adjust the position. The support rod (5) swings up and down between the upper and lower side edges of the hinge groove (32) near the notch around the rotation point of the outer wall of the pin shaft (51) to adjust the inclination angle of the support rod when expanding the oral cavity.

2. The oral cavity expander for oral cavity inspection according to claim 1, characterized in that: A biting groove (31) for engaging with teeth is formed on the side wall where the expansion plate (3) and the blocking end meet.

3. The oral cavity expander for oral cavity inspection according to claim 1, characterized in that: The width of the expansion plate (3) is no more than 1-1.5 cm.

4. The oral cavity expander for oral cavity inspection according to claim 1, characterized in that: Two extension blocks are fixed to the side wall of the pin shaft (51) facing the support rod (5), and arc-shaped spring pieces (52) are fixed to the ends of the two extension blocks. The two arc-shaped spring pieces (52) extend to the upper and lower side walls of the support rod (5) respectively, and the middle side walls of the upper and lower arc-shaped spring pieces (52) are bent to the sides away from each other, and the bent side walls of the upper and lower arc-shaped spring pieces (52) are respectively against the upper and lower side walls in the hinge groove (32).

5. The oral cavity expander for oral cavity inspection according to claim 4, characterized in that: The upper and lower side walls of the support rod (5) are both provided with sliding grooves (53), and the ends of the two upper and lower arc-shaped spring pieces (52) opposite to each other extend into the corresponding sliding grooves (53) respectively and slide in contact with the inner walls of the sliding grooves (53).

6. The oral cavity expander for oral cavity inspection according to claim 4, characterized in that: The two arc-shaped spring pieces (52) facing each other are both fixed with protrusions (54) at the bent positions of the side walls that are away from each other, and the upper and lower side walls in the hinge groove (32) are both provided with a plurality of grooves that are engaged with the protrusions (54), and the plurality of grooves located on the same horizontal plane are evenly spaced and arranged in a semicircular structure with the pin shaft (51) as the center.

7. The oral cavity expander for oral cavity inspection according to claim 1, characterized in that: An operating handle (6) with a semicircular hollow structure is fixed to one end of the handle 1 (1) and the handle 2 (2) away from the support rod (5), and the two operating handles (6) are symmetrically distributed.

8. The oral cavity expander for oral cavity inspection according to claim 7, characterized in that: A stainless steel spring sheet (4) is fixed to the end of the side wall of the operating handle (6) of the second handle (2) facing the other operating handle (6), and the end of the stainless steel spring sheet (4) is bent and extended to form a stretching portion close to the hinge position of the first handle (1) and the second handle (2), and a clamping notch is provided on the outer wall of the bending position of the stretching portion, and a docking groove is provided on the side wall of the operating handle (6) of the first handle (1) facing the other operating handle (6), and a plurality of clamping blocks (61) are fixed to the inner wall of the docking groove and extend obliquely toward the hinge position of the first handle (1) and the second handle (2), the bending position of the stretching portion extends into the docking groove and sliders are rotatably provided on the side walls on both sides of the bending position, and guide grooves for slidingly clamping with the sliders are provided on the side walls on both sides of the docking groove; The two operating handles (6) are held together with one hand, and the bending position of the stretching portion of the stainless steel spring sheet (4) slides horizontally along the docking groove toward the side close to the hinge position of the handle 1 (1) and the handle 2 (2). After the two operating handles (6) are stopped and held together, the engaging notch of the stretching portion engages with the outer wall of the engaging block (61) at the corresponding position.

9. The oral cavity expander for oral cavity inspection according to claim 8, characterized in that: A pull ring (41) is fixed to the end of the stretching portion.

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