Oral cavity opening device for department of stomatology

Abstract

The utility model provides an oral cavity distraction device for department of stomatology, which relates to the technical field of medical instruments and comprises a support ring, arc-shaped plates are arranged at the upper part and the lower part of the outer part of the support ring, four butt-joint rods are fixed on the outer surface of the support ring along the circumferential direction at equal intervals, two ends of each arc-shaped plate are respectively provided with a side opening, and the two ends of each arc-shaped plate are respectively provided with a side opening. According to the utility model, the arc-shaped plate and the nylon lap joint strip are made of polyethylene plastics, so that the arc-shaped plate and the nylon lap joint strip have elastic deformation capability, and when the oral cavity of a patient is opened by using the device, the relative distance between the butt joint column and the butt joint rod can be changed by rotating the threaded sleeve; meanwhile, the penetrating holes are formed in the nylon lap joint strips, so that the penetrating holes and the clamping rings can be connected with each other through nylon wires, the radian of the middle area of the arc-shaped plate is adjusted by storing the tensile force of the nylon wires, and the arc-shaped plate can be better attached to the oral cavity of the patient conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an oral cavity expansion device for stomatology. Background Art

[0002] The oral cavity is divided into the oral vestibule in the front and outside part and the proper oral cavity in the back and inside part by the upper and lower dental arches; when the upper and lower teeth are occluded, the oral vestibule and the proper oral cavity can be connected through the gap behind the third molar. In clinical practice, when the patient's jaws are tightly closed, an opener or intubation can be placed through this channel to inject drugs or nutrients, while preventing tongue bites.

[0003] When doctors are performing oral observation treatment, in order to facilitate the operation of dentists, doctors need to use oral retractors to open the patient's mouth. Existing oral retractors are mostly rigid arc-shaped plates. Such arc-shaped plates cannot be adjusted according to the size of the mouths of different patients, resulting in low oral support strength at the edges, which can easily loosen or squeeze the patient's oral muscles. Utility Model Content

[0004] In order to solve the problems in the prior art, the utility model provides a mouth opening device for stomatology.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A dental oral opening device comprises a support ring, wherein the outer portion of the support ring is provided with arc plates at the top and the bottom, and the outer surface of the support ring is provided with four docking rods equidistantly fixed along the circumferential direction, and both ends of the two arc plates are provided with side openings, and a universal joint is provided between the inner walls of the plurality of side openings, and a docking column is fixed at one end of the plurality of universal joints, and the outer surfaces of the plurality of docking columns are rotatably connected with a threaded sleeve near one end edge.

[0007] Optionally, the plurality of threaded sleeves are correspondingly threadedly connected to the outer surface of the docking rod, and two clamping rings are fixed to the outer surface of the support ring.

[0008] Optionally, a nylon lap strip is fixed to the bottom of the two arc-shaped plates, and a plurality of perforations are equidistantly formed on the tops of the two nylon lap strips.

[0009] Optionally, grooves are provided on the tops of the two arc-shaped plates, and elastic protective pads are provided on the inner bottom surfaces of the two grooves.

[0010] Optionally, the two clamping rings are connected to the through holes via nylon threads.

[0011] Optionally, the arc-shaped plate and the nylon lap strip are both elastic.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0013] 1. In the utility model, the arc plate and the nylon lap strip are made of polyethylene plastic, so that the arc plate and the nylon lap strip have elastic deformation ability. When the patient's mouth is opened by using the device, the relative distance between the docking column and the docking rod can be changed by rotating the threaded sleeve, thereby adjusting the supporting strength of the patient's mouth at the edges of the two ends of the arc plate.

[0014] In the utility model, when adjusting the curvature of the middle area of ​​the arc plate, since the perforations are arranged equidistantly on the nylon lap strip and the positions where the nylon thread is connected to the perforations are different, the range of adjustment of the curvature of the arc plate is also different. In actual use, the position where the perforations are connected can be selected according to the actual situation of the patient's oral cavity, and an elastic protective pad is arranged inside the groove on the arc plate, so that in the process of supporting the patient's oral cavity, the patient's teeth can bite on the elastic protective pad to protect the teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0016] Figure 1 The utility model provides a main perspective structural diagram of a mouth opening device for stomatology;

[0017] Figure 2 The utility model provides a schematic diagram of the main three-dimensional structure of an arc plate in a mouth opening device for stomatology;

[0018] Figure 3 The utility model provides a schematic diagram of the cross-sectional three-dimensional structure of an arc plate in a mouth opening device for stomatology.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Support ring; 2. Docking rod; 3. Snap ring; 4. Arc plate; 5. Nylon lap strip; 6. Perforation; 7. Side port; 8. Docking column; 9. Threaded sleeve; 10. Universal joint; 11. Groove; 12. Elastic protective pad.

[0021] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0022] The utility model will now be further described in detail with reference to the accompanying drawings.

[0023] Embodiment 1, as Figure 1-3 As shown, the utility model provides a technical solution for an oral opening device for stomatology: it includes a support ring 1, the outside of the support ring 1 is provided with arc plates 4 at the top and bottom, the outer surface of the support ring 1 is fixed with four docking rods 2 at equal intervals along the circumferential direction, both ends of the two arc plates 4 are provided with side openings 7, universal joints 10 are provided between the inner walls of the multiple side openings 7, one end of the multiple universal joints 10 is fixed with a docking column 8, and the outer surfaces of the multiple docking columns 8 are rotatably connected with a threaded sleeve 9 near one end edge.

[0024] The effect achieved by the entire embodiment 1 is that the arc plate 4 and the nylon lap strip 5 are made of polyethylene plastic, so that the arc plate 4 and the nylon lap strip 5 have elastic deformation capabilities. When the patient's mouth is opened by using the device, the relative distance between the docking column 8 and the docking rod 2 can be changed by rotating the threaded sleeve 9, thereby adjusting the supporting strength of the patient's mouth at the edges of both ends of the arc plate 4. At the same time, a perforation 6 is opened on the nylon lap strip 5, so that the perforation 6 and the clamp 3 can be connected to each other by a nylon thread. By storing the tension of the nylon thread, the curvature of the middle area of ​​the arc plate 4 is adjusted to facilitate better fitting with the patient's mouth.

[0025] Embodiment 2, as Figure 1-3 As shown, a plurality of threaded sleeves 9 are correspondingly threadedly connected to the outer surface of the docking rod 2, two retaining rings 3 are fixed to the outer surface of the support ring 1, nylon lap strips 5 are fixed to the bottom of the two arc plates 4, a plurality of through holes 6 are evenly spaced at the top of the two nylon lap strips 5, a groove 11 is formed at the top of the two arc plates 4, and elastic protective pads 12 are provided on the inner bottom surfaces of the two grooves 11, the two retaining rings 3 are connected to the through holes 6 by nylon threads, and the arc plates 4 and the nylon lap strips 5 are elastic.

[0026] The effect achieved by the entire embodiment 2 is that, when adjusting the curvature of the middle area of ​​the arc plate 4, since the perforations 6 are equidistantly arranged on the nylon lap strip 5 and the positions where the nylon thread is connected to the perforations 6 are different, the range of adjustment of the curvature of the arc plate 4 is also different. In actual use, the position where the perforations 6 are connected can be selected according to the actual situation of the patient's oral cavity, and an elastic protective pad 12 is arranged inside the groove 11 on the arc plate 4, so that in the process of supporting the patient's oral cavity, the patient's teeth can bite on the elastic protective pad 12 to protect the teeth.

[0027] Working principle: The arc plate 4 and the nylon lap strip 5 are made of polyethylene plastic, so that the arc plate 4 and the nylon lap strip 5 have elastic deformation ability. When the patient's mouth is opened by using the device, the relative distance between the docking column 8 and the docking rod 2 can be changed by rotating the threaded sleeve 9, so as to adjust the support strength of the patient's mouth at the edges of both ends of the arc plate 4. At the same time, a perforation 6 is opened on the nylon lap strip 5, so that the perforation 6 and the clamp 3 can be connected to each other through a nylon thread, and the tension of the nylon thread can be stored to adjust the arc plate 4. The curvature of the middle area of ​​the curved plate 4 is convenient for better fitting with the patient's oral cavity. When adjusting the curvature of the middle area of ​​the curved plate 4, since the perforations 6 are equidistantly arranged on the nylon lap strip 5, the positions where the nylon thread is connected to the perforations 6 are different, the range of adjustment of the curvature of the curved plate 4 is also different. In actual use, the position where the perforations 6 are connected can be selected according to the actual situation of the patient's oral cavity, and an elastic protective pad 12 is arranged inside the groove 11 on the curved plate 4, so that in the process of supporting the patient's oral cavity, the patient's teeth can bite on the elastic protective pad 12 to protect the teeth.

[0028] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A dental oral opening device, comprising a support ring (1), characterized in that: The support ring (1) is provided with arc-shaped plates (4) at the top and bottom of the support ring (1), and four docking rods (2) are fixed to the outer surface of the support ring (1) at equal intervals in the circumferential direction. Side openings (7) are provided at both ends of the two arc-shaped plates (4), and universal joints (10) are provided between the inner walls of the plurality of side openings (7). A docking column (8) is fixed at one end of the plurality of universal joints (10), and a threaded sleeve (9) is rotatably connected to the outer surface of the plurality of docking columns (8) near one end edge.

2. The oral cavity opening device for dentistry according to claim 1, characterized in that: The plurality of threaded sleeves (9) are correspondingly threadedly connected to the outer surface of the docking rod (2), and two clamping rings (3) are fixed to the outer surface of the support ring (1).

3. The oral cavity opening device for stomatology according to claim 2, characterized in that: The bottoms of the two arc-shaped plates (4) are both fixed with nylon lap strips (5), and the tops of the two nylon lap strips (5) are both provided with a plurality of perforations (6) at equal intervals.

4. The oral cavity opening device for stomatology according to claim 3, characterized in that: A groove (11) is provided on the top of each of the two arc-shaped plates (4), and an elastic protective pad (12) is provided on the inner bottom surface of each of the two grooves (11).

5. The oral cavity opening device for dentistry according to claim 4, characterized in that: The two clamping rings (3) and the through hole (6) are connected via nylon threads.

6. The oral cavity opening device for stomatology according to claim 5, characterized in that: The arc-shaped plate (4) and the nylon lap strip (5) are both elastic.

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