A device for measuring vertical distance of face

Abstract

The utility model provides a device for measuring the vertical distance of the face, comprising a maxillary plane plate and a measuring ruler, wherein the measuring ruler is arranged at two ends of the maxillary plane plate, and the lower end of the measuring ruler is rotatably connected to the maxillary plane plate, so as to provide a more accurate measurement method, and both the fixed point and the plane are more stable and reliable. The utility model can make the vertical distance ruler more widely applicable by positioning the maxillary bone and the orbital part; and can also help to judge whether the bilateral faces are symmetrical and whether the maxillary bone is deflected. If there is asymmetry and deflection, firstly, the angle at the connecting device will change, and secondly, the caliper can be positioned to the bilateral inner canthus at the same time. The tool has a simple structure and operation, and the measurement fixed point position is accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of oral and maxillofacial surgery, and in particular relates to a device for measuring the vertical distance of a face. Background Art

[0002] The vertical distance is the distance from the bottom of the nose to the bottom of the chin when the natural teeth are in centric occlusion, that is, the distance of 1 / 3 below the face, which represents the vertical position relationship between the upper and lower jaws. The determination of the vertical distance is of great significance in oral clinical diagnosis and treatment. The normal vertical distance height of the face maintains the coordination and beauty of the facial proportions. More importantly, the appropriate vertical distance ensures the normal occlusal contact and maintains the normal activity of the facial masticatory muscles. The determination of the vertical distance provides a basic guarantee for establishing a correct occlusal relationship. Therefore, it is often required in denture restoration, occlusal reconstruction, and orthodontic and orthognathic combined treatment.

[0003] In the prior art, the distance from the base of the nose to the base of the chin in a relaxed state is usually measured, and the average occlusal clearance of 2mm is subtracted to obtain the vertical distance in the mid-position. Alternatively, the pupil position is visually observed under direct vision, and the distance from the pupil to the oral cleft is measured with a ruler. The above methods are all relatively poor in accuracy, and the occlusal clearance varies greatly among different individuals, especially for patients with open bite and those who require combined orthodontic and orthognathic treatment, 2mm is no longer applicable. It is difficult to accurately locate the pupil and oral cleft under visual observation, and the position of the oral cleft also varies greatly among different individuals, with some having higher oral clefts and others having lower ones. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model provides a device for measuring the vertical distance of the face, which is used for clinical application of measuring the vertical distance of the face and can be positioned to the bilateral inner canthi at the same time to accurately measure the vertical distance of the face.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: a device for measuring the vertical distance of the face, including a maxillary plane plate and a measuring ruler, the measuring ruler is arranged at both ends of the maxillary plane plate, and the lower end of the measuring ruler is rotatably connected to the maxillary plane plate.

[0006] A connecting plate is arranged on the upper end of the measuring ruler, the measuring ruler is vertically connected to the connecting plate, the measuring ruler is slidably connected to the connecting plate, and the measuring ruler slides along the connecting plate.

[0007] A vernier is arranged on the measuring ruler, and the vernier and the measuring ruler are transitionally matched.

[0008] A sharp beak for positioning is arranged on the cursor, and the sharp beak is made of silicone.

[0009] The minimum scale of the measuring ruler is 1mm.

[0010] Slide blocks are arranged at both ends of the maxillary plane plate, the measuring ruler is hinged to the slide blocks, waist-shaped holes are arranged at both ends of the maxillary plane plate, and the slide blocks are arranged in the waist-shaped holes.

[0011] A locking nut is arranged at the connection between the slider and the waist-shaped hole, and the locking nut is threadedly connected with the slider, and the locking nut is a butterfly nut.

[0012] The maxillary plane plate is a retractable plate, and the measuring ruler is hinged to both ends of the maxillary plane plate.

[0013] A slidable right-angle slider is arranged on the measuring ruler.

[0014] The middle part of the maxillary plane plate is in the shape of the maxillary dental arch.

[0015] Compared with the prior art, the utility model has at least the following beneficial effects:

[0016] The utility model provides a more accurate and convenient measuring tool, the fixed point and plane are more stable and reliable, and the vertical distance ruler can be more widely used by positioning the maxillary bone and the orbital part; it can also help to judge whether the bilateral facial features are symmetrical and whether the maxillary bone is tilted. If there is asymmetry and tilt, firstly, the angle of the connecting device will change, and secondly, by positioning the bilateral inner canthus at the same time, the tool has a simple structure and operation, accurate measurement of the fixed point position, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of an implementable structure of the maxillary plane plate.

[0018] Figure 2 The utility model is a schematic diagram of an implementable structure.

[0019] Figure 3 The utility model is a structural schematic diagram of a connecting plate.

[0020] Figure 4 It is a partial enlarged schematic diagram of the measuring ruler 2.

[0021] Figure 5 A schematic diagram of an optional implementation structure. DETAILED DESCRIPTION

[0022] The utility model is described in detail below with reference to the accompanying drawings.

[0023] refer to Figure 1 , Figure 2 and Figure 3 A device for measuring vertical distance of face, comprising a maxillary plane plate and a measuring ruler 2, wherein the measuring ruler 2 is arranged at both ends of the maxillary plane plate 1, and the minimum scale of the measuring ruler 2 is 1 mm.

[0024] The measuring ruler 2 is slidably and rotatably connected to the maxillary plane plate. The measuring ruler 2 can be rotated to open it to a measuring state; or the measuring ruler 2 can be closed and parallel to the maxillary plane plate for easy storage.

[0025] refer to Figure 3 A connecting plate 3 is provided at the upper end of the measuring ruler 2, the measuring ruler 2 is vertically connected to the connecting plate 3, the measuring ruler 2 is slidably connected to the connecting plate, and the measuring ruler 2 slides along the connecting plate 3. During measurement, the person being measured fastens the maxillary plane in the oral cavity with his teeth, the measuring ruler 2 and the connecting plate 3 are kept vertical, and the connecting plate 3 is kept horizontal. If the readings of the measuring ruler 2 on both cheeks are consistent, the bilateral facial features are balanced. If the readings of the measuring ruler 2 on both cheeks are inconsistent, the bilateral facial features are asymmetric and skewed, and the facing angle between the measuring ruler 2 and the maxillary face will also change.

[0026] Optionally, both the measuring ruler 2 and the connecting plate 3 are provided with strip grooves, in which limit bars are arranged, and the cross-section of the limit bars is rectangular, which can prevent the measuring ruler 2 and the connecting plate 3 from rotating, and can keep the two vertically connected and can slide relative to each other.

[0027] In order to achieve more accurate positioning and measurement, a cursor is provided on the measuring ruler 2, and the cursor and the measuring ruler 2 are in transitional cooperation. Even if the measuring ruler is in a vertical state, the cursor will slide relative to the measuring ruler 2 only under the interference of external force.

[0028] Optionally, the maxillary plane plate 1 and the measuring ruler 2 are made of stainless steel.

[0029] Waist-shaped holes are provided at both ends of the maxillary plane plate, and a measuring ruler 2 is arranged in the waist-shaped holes, and the length of the waist-shaped holes is 2.5-3.5 cm.

[0030] One end of the measuring ruler 2 connected to the waist-shaped hole is provided with a thread, and a locking nut is provided at the connection between the measuring ruler 2 and the waist-shaped hole, and the locking nut is a butterfly nut.

[0031] The maxillary plane plate is a retractable plate, and the measuring ruler 2 is hinged to both ends of the maxillary plane plate 1. A vertical angle ruler is arranged at the lower end of the measuring ruler 2.

[0032] A limit structure is provided at the connection end between the measuring ruler 2 and the maxillary plane plate, and the limit structure adopts a locking screw.

[0033] refer to Figure 5 As an optional embodiment, a magnetic block is set at the lower end of the measuring ruler 2, and a magnetic strip is set in the maxillary plane plate 1. When measuring, the measuring ruler 2 and the connecting plate 3 are placed on the maxillary plane plate, and the magnetic block and the magnetic strip attract each other. However, the relative position of the measuring ruler 2 and the maxillary plane plate 1 can be changed. If the measuring ruler readings of the two cheeks are inconsistent, there is asymmetry and deviation on both sides of the face, and the facing angle between the measuring ruler 2 and the maxilla will also change.

[0034] The maxillary plane plate 1 can be in the form of a maxillary dental arch. It can be placed in the oral cavity against the teeth to locate the position of the maxillary plane. The maxillary plane plate is connected to the measuring ruler 2 outside the mouth, and the measuring ruler 2 is perpendicular to the maxillary plane plate 1. This connecting device can adjust the angle between the vertical distance ruler and the maxillary plane. If the patient's maxillary plane and facial midline are not deflected, it is usually 90°. A vernier is set on the measuring ruler 2, and a sharp beak for positioning is set on the vernier to facilitate more accurate positioning of the inner canthus or pupil. The scale of the measuring ruler 2 is 0 when it is parallel to the maxillary plane plate. As the vernier moves upward, the scale increases. Finally, the vernier is positioned at the inner canthus of both eyes. The scale shown is the vertical distance; the vertical distance can be determined by positioning the maxillary occlusal plane and measuring the distance from the inner canthus to the maxillary plane. The maxillary bone is in a relatively stable position. The inner canthus is easier to locate than the pupil, and the individual change is smaller than the outer canthus. This method can also determine whether the maxillary plane is deflected.

[0035] The above content is only for explaining the technical idea of ​​the utility model and cannot be used to limit the protection scope of the utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the utility model shall fall within the protection scope of the claims of the utility model.

Claims

1. A device for measuring vertical distance of a face, characterized in that: The invention comprises a maxillary plane plate (1) and a measuring ruler (2), wherein the measuring ruler (2) is arranged at both ends of the maxillary plane plate (1), and the lower end of the measuring ruler (2) is rotatably connected to the maxillary plane plate (1); a connecting plate (3) is arranged at the upper end of the measuring ruler (2), the measuring ruler (2) and the connecting plate (3) are vertically connected, the measuring ruler (2) and the connecting plate are slidably connected, and the measuring ruler (2) slides along the connecting plate (3).

2. The device for measuring vertical distance of face according to claim 1, characterized in that: A vernier is arranged on the measuring ruler (2), and the vernier is transitionally matched with the measuring ruler (2).

3. The device for measuring vertical distance of face according to claim 1, characterized in that: A sharp beak for positioning is arranged on the cursor, and the sharp beak is made of silicone.

4. The device for measuring vertical distance of face according to claim 1, characterized in that: The minimum scale of the measuring ruler (2) is 1 mm.

5. The device for measuring vertical distance of face according to claim 1, characterized in that: Slide blocks are arranged at both ends of the maxillary plane plate (1), the measuring ruler (2) is hinged to the slide blocks, waist-shaped holes are provided at both ends of the maxillary plane plate, and the slide blocks are arranged in the waist-shaped holes.

6. The device for measuring vertical distance of face according to claim 5, characterized in that: A locking nut is arranged at the connection between the slider and the waist-shaped hole, and the locking nut is threadedly connected with the slider, and the locking nut is a butterfly nut.

7. The device for measuring vertical distance of face according to claim 1, characterized in that: The maxillary plane plate (1) is a retractable plate, and the measuring ruler (2) is hinged to both ends of the maxillary plane plate (1).

8. The device for measuring vertical distance of face according to claim 1, characterized in that: A slidable right-angle slider is provided on the measuring ruler (2).

9. The device for measuring vertical distance of face according to claim 1, characterized in that: The middle part of the maxillary plane plate (1) is in the shape of a maxillary dental arch.

Images