Opening degree measurement training device

Abstract

The utility model provides an opening degree measurement training device, which is characterized in that a fan-shaped graduated scale, a first measurement arm and a second measurement arm are arranged, the second measurement arm is hinged with the first measurement arm, and the hinged ends of the first measurement arm and the second measurement arm are concentrically arranged with the fan-shaped graduated scale; one end of the torsion spring is connected with the first measuring arm, the other end is connected with the second measuring arm, and the first measuring arm and the second measuring arm have an opening angle in a natural state of the torsion spring; the first measuring arm and the second measuring arm are folded by pressing the first measuring arm and the second measuring arm and placed in the mouth of a patient, then pressing is relieved, the first measuring arm and the second measuring arm are driven to be opened through elastic force reset of the torsional spring, and then the opening degree is measured under cooperation of the patient. The opening degree can be directly measured through the scales, that is, the vertical distance between the middle cutting angles of the upper and lower jaw middle incisor teeth is measured, and the measurement result is relatively accurate; the elastic force of the torsion spring drives the measuring arm to open and close, and the training effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an opening degree measurement training device. Background Art

[0002] In clinical treatment work in the oral profession, it is usually necessary to measure the patient's mouth opening degree to diagnose whether the patient has temporomandibular joint disorder, mandibular movement dysfunction, and to evaluate the mouth opening status after rehabilitation treatment.

[0003] However, there is currently a lack of professional measurement tools in clinical practice. The method of measuring mouth opening is mainly through fingers, that is, inserting fingers vertically into the mouth and judging the severity of the opening disorder according to the number of fingers inserted. This measurement method has poor accuracy and is unhygienic. Utility Model Content

[0004] The purpose of the utility model is to provide a mouth opening measurement training device to solve the problems mentioned in the above background technology that there is currently a lack of professional mouth opening measurement tools in clinical practice and the existing mouth opening measurement methods are inaccurate.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mouth opening measurement training device, comprising: a sector-shaped scale having a scale for measuring the mouth opening; a first measuring arm, which is fixedly connected to the sector-shaped scale and is flush with the zero scale line of the sector-shaped scale; a second measuring arm, which is hinged to the first measuring arm, and the hinged ends of the first measuring arm and the second measuring arm are both arranged concentrically with the sector-shaped scale, and the lengths of the first measuring arm and the second measuring arm are the same and greater than the radius of the sector-shaped scale; a torsion spring, one end of which is connected to the first measuring arm and the other end is connected to the second measuring arm, and when the torsion spring is in a natural state, the first measuring arm and the second measuring arm have an opening angle.

[0006] Optionally, the sector-shaped scale is fixedly connected to one side of the first measuring arm.

[0007] Optionally, the sector-shaped scale is fixedly connected to the middle part of the first measuring arm, and the second measuring arm is provided with a groove, so that the first measuring arm and the second measuring arm do not interfere with the sector-shaped scale in an open or closed state.

[0008] Optionally, both the first measuring arm and the second measuring arm are provided with a slot, and the two slots are arranged away from one end at which the first measuring arm and the second measuring arm are hinged.

[0009] Optionally, the lengths of the first measuring arm and the second measuring arm are both twice the radius of the sector scale.

[0010] Optionally, in the natural state of the torsion spring, the opening angle of the first measuring arm and the second measuring arm is 45°.

[0011] Optionally, when the torsion spring is in a natural state, the scale value corresponding to the second measuring arm is 60 mm.

[0012] Optionally, the sector-shaped scale includes: a first scale, which is arranged corresponding to the first measuring arm and the second measuring arm; a second scale, which is separated from the first scale by a dividing line, and the first scale and the second scale are arranged back to back; a limiting protrusion, which is located on the side of the sector-shaped scale close to the second scale, and the limiting protrusion cooperates with the side of the sector-shaped scale to form a limiting area, which is used to abut the teeth to limit the sector-shaped scale when measuring the degree of opening.

[0013] Optionally, the surface of the limiting protrusion is smoothly arranged, and the side of the limiting area close to the sector-shaped scale is inclined toward an end close to the dividing line.

[0014] Optionally, the sector-shaped scale is a right-angle sector-shaped scale.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, a sector-shaped scale, a first measuring arm and a second measuring arm are provided, the second measuring arm is hinged to the first measuring arm, and one end of the hinge of the first measuring arm and the second measuring arm is arranged concentrically with the sector-shaped scale; a torsion spring, one end of which is connected to the first measuring arm, and the other end is connected to the second measuring arm, and in the natural state of the torsion spring, the first measuring arm and the second measuring arm have an opening angle; during use, the first measuring arm and the second measuring arm are closed and put into the patient's mouth by pressing them, and then the pressing is released, and the first measuring arm and the second measuring arm are driven to open by the elastic force of the torsion spring itself, and then the mouth opening degree is measured with the cooperation of the patient, and according to the proportional relationship between the length of the measuring arm and the radius of the sector-shaped scale, the mouth opening degree can be directly measured by the scale, that is, the vertical distance between the central incisor angles of the upper and lower mandibular central incisors is measured, and the measurement result is relatively accurate; and the first measuring arm and the second measuring arm are driven to open the mouth by the elastic force of the torsion spring, so that mouth opening training can be performed, thereby improving the training effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the front structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the back structure of the utility model.

[0019] Figure 3It is a schematic diagram of the front structure of the torsion spring of the utility model.

[0020] Figure 4 It is a schematic diagram of the side structure of the torsion spring of the utility model.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the utility model.

[0022] In the figure: 1 - sector scale, 2 - rotating shaft, 3 - first measuring arm, 4 - second measuring arm, 5 - dividing line, 6 - first scale, 7 - second scale, 8 - limiting protrusion, 9 - slot, 10 - torsion spring, 1001 - first torsion arm, 1002 - second torsion arm, 1003 - first bending portion, 1004 - second bending portion. DETAILED DESCRIPTION

[0023] The scheme of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0026] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0027] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] Please refer to Figure 1 - Figure 5 The utility model is a mouth opening measurement training device, comprising: a sector-shaped scale 1, which has scales and is used to measure the mouth opening; a first measuring arm 3, which is fixedly connected to the sector-shaped scale 1 and is flush with the zero scale line of the sector-shaped scale 1; a second measuring arm 4, which is hinged to the first measuring arm 3, and the hinged ends of the first measuring arm 3 and the second measuring arm 4 are both arranged concentrically with the sector-shaped scale 1, and the lengths of the first measuring arm 3 and the second measuring arm 4 are the same and greater than the radius of the sector-shaped scale 1; a torsion spring 10, one end of which is connected to the first measuring arm 3, and the other end is connected to the second measuring arm 4, and when the torsion spring 10 is in a natural state, the first measuring arm 3 and the second measuring arm 4 have an opening angle.

[0030] Specifically, the sector scale 1 has arc-shaped scale lines and two side edges located on both sides of the arc-shaped scale lines, one of which is fixedly connected to the first measuring arm 3; one end of the first measuring arm 3 is hinged to one end of the second measuring arm 4, and the hinged ends of the first measuring arm 3 and the second measuring arm 4 are both arranged concentrically with the sector scale 1; it can be understood that both sides of the hinged ends of the first measuring arm 3 and the second measuring arm 4 have connecting holes for the rotation shaft 2 to pass through, and the two connecting holes of the second measuring arm 4 are located between the two connecting holes of the first measuring arm 3, and the rotation shaft 2 sequentially penetrates the four connecting holes and is fixedly connected to the two connecting holes of the first measuring arm 3, so that the second measuring arm 4 can rotate along the rotation shaft 2; and then the torsion spring 10 is movably sleeved on the outer side of the rotation shaft 2, and one end is connected to the first measuring arm 3, and the other end is connected to the second measuring arm 4, so that the first measuring arm 3 and the second measuring arm 4 can be driven to open or close through the deformation of the torsion spring 10 and its own elastic reset.

[0031] More specifically, the arc-shaped scale lines of the sector scale 1 include scale lines for calculating the vertical distance between the central incisors of the upper and lower central incisors in proportion; the lengths of the first measuring arm 3 and the second measuring arm 4 are the same and greater than the radius of the sector scale 1, that is, the lengths of the first measuring arm 3 and the second measuring arm 4 are proportional to the radius of the sector scale 1, for example, the lengths of the first measuring arm 3 and the second measuring arm 4 are 1.5 times, 2 times, 2.5 times or 3 times the radius of the sector scale 1, and the specific setting can be selected according to needs, and the present application does not make specific limitations; for example, the lengths of the first measuring arm 3 and the second measuring arm 4 are twice the radius of the sector scale 1, then the opening degree values ​​of the first measuring arm 3 and the second measuring arm 4 are twice the scale value in the sector scale 1, that is, the scale to mark should be marked according to 2 times the scale value, this method can read the opening degree more accurately and quickly, greatly improving work efficiency.

[0032] During use, the first measuring arm 3 and the second measuring arm 4 are pressed to close and put into the patient's mouth, and then the pressing is released, and the first measuring arm 3 and the second measuring arm 4 are driven to open by the elastic force of the torsion spring 10 itself, and then the mouth opening degree is measured with the cooperation of the patient. According to the proportional relationship between the length of the measuring arm and the radius of the fan-shaped scale, the mouth opening degree can be directly measured through the scale, that is, the vertical distance between the central incisors of the upper and lower mandibular central incisors is measured, and the measurement result is more accurate; and the first measuring arm 3 and the second measuring arm 4 are driven to open the mouth by the elastic force of the torsion spring 10, so that mouth opening training can be performed, thereby improving the training effect.

[0033] In one embodiment of the present invention, the sector-shaped scale 1 is fixedly connected to one side of the first measuring arm 3 .

[0034] Specifically, by fixing the sector-shaped scale 1 to one side of the first measuring arm 3 , the aperture scale value can be read more conveniently and quickly during use, which greatly improves the work efficiency of medical staff.

[0035] In one embodiment of the utility model, the sector-shaped scale 1 is fixedly connected to the middle part of the first measuring arm 3, and the second measuring arm 4 is provided with a groove so that the first measuring arm 3 and the second measuring arm 4 do not interfere with the sector-shaped scale 1 in the open and closed state.

[0036] Specifically, by fixing the sector-shaped scale 1 to the middle part of the first measuring arm 3, the sector-shaped scale 1 can be prevented from being damaged due to daily collisions. By arranging the first measuring arm 3 and the second measuring arm 4 on both sides of the sector-shaped scale 1, it can better protect it and increase its service life.

[0037] In one embodiment of the present invention, the first measuring arm 3 and the second measuring arm 4 are both provided with a slot 9 , and the two slots 9 are both arranged away from the end at which the first measuring arm 3 and the second measuring arm 4 are hinged.

[0038] Specifically, the card slot 9 is used for the occlusion of teeth, and has a certain anti-slip effect. At the same time, it can also make it easier for patients to find the measurement point when measuring the mouth opening, thereby greatly improving the safety and measurement accuracy.

[0039] In one embodiment of the present invention, the lengths of the first measuring arm 3 and the second measuring arm 4 are both twice the radius of the sector scale 1 .

[0040] Specifically, the lengths of the first measuring arm 3 and the second measuring arm 4 are both twice the radius of the sector-shaped scale 1, so the opening values ​​of the first measuring arm 3 and the second measuring arm 4 are twice the scale values ​​in the sector-shaped scale 1, that is, the scale to the mark should be marked according to 2 times the scale value. This method can read the opening degree more accurately and quickly, greatly improving work efficiency.

[0041] In one embodiment of the present invention, in the natural state of the torsion spring 10 , the opening angle of the first measuring arm 3 and the second measuring arm 4 is 45°.

[0042] Specifically, by setting the torsion spring 10 in a natural state, the opening angle of the first measuring arm 3 and the second measuring arm 4 is 45°. During use, when the mouth opening degree of most patients is measured by the mouth opening training device, the torsion spring 10 is in a deformed state, that is, the torsion spring 10 is reset by its own elastic force to drive the patient's mouth to open, which greatly improves the patient's comfort when using it.

[0043] In one embodiment of the present invention, when the torsion spring 10 is in a natural state, the scale value corresponding to the second measuring arm 4 is 60 mm.

[0044] Specifically, since the maximum normal value of the normal opening degree is about 60 mm, when the torsion spring 10 is in the natural state, when the opening angle of the first measuring arm 3 and the second measuring arm 4 is 45°, the scale value corresponding to the second measuring arm 4 is 60 mm, which can measure the opening degree values ​​of most people; if the patient's opening degree is abnormal, then when measuring the opening degree, the torsion spring 10 will deform, so that the first measuring arm 3 and the second measuring arm 4 can be driven to open, and the patient does not need to apply too much force, or even no force is needed to measure the opening degree value, which not only improves the work efficiency of medical staff, but also makes the patient more comfortable during measurement.

[0045] In one embodiment of the utility model, the sector-shaped scale 1 includes: a first scale 6, which is arranged corresponding to the first measuring arm 3 and the second measuring arm 4; a second scale 7, which is separated from the first scale 6 by a dividing line 5, and the first scale 6 and the second scale 7 are arranged back to back; a limiting protrusion 8, which is located on the side of the sector-shaped scale 1 close to the second scale 7, and the limiting protrusion 8 cooperates with the side of the sector-shaped scale 1 to form a limiting area, and the limiting area is used to abut against the teeth to limit the sector-shaped scale 1 when measuring the opening degree.

[0046] Specifically, for patients with more serious conditions, since their oral opening is smaller, it is difficult to extend the first measuring arm 3 and the second measuring arm 4 into the patient's mouth due to the provision of the card slot 9. The second scale 7 in the fan-shaped scale 1 can be used to measure the opening of these patients.

[0047] More specifically, by placing one end of the sector-shaped scale 1 with the limiting protrusion 8 into the patient's mouth, supporting the patient's teeth through the intersection of the limiting protrusion 8 and the sector-shaped scale 1, and rotating the sector-shaped scale 1 so that the second scale 7 is aligned with the other side of the patient's teeth, the corresponding scale value is the opening degree value, and this measurement method is more accurate.

[0048] In one embodiment of the utility model, the surface of the limiting protrusion 8 is smoothly arranged, and the limiting area is inclined from a side close to the sector-shaped scale 1 to an end close to the dividing line 5 .

[0049] Specifically, in order to avoid causing harm to the patient during use and to improve the patient's experience, the surface of the limiting protrusion 8 is set to be smooth, and the limiting area is inclined toward the end close to the dividing line 5 on the side close to the sector scale 1. This setting is more friendly to the patient's lips and tongue, and the user experience is better.

[0050] In one embodiment of the present invention, the sector-shaped scale 1 is a right-angle sector-shaped scale.

[0051] Specifically, the sector-shaped scale 1 is a right-angle sector-shaped scale. When the torsion spring 10 is in a natural state, the opening angle of the first measuring arm 3 and the second measuring arm 4 is 45°, which is exactly at the position of the dividing line 5. The overall device has a simple structure, occupies a small space, and is more convenient to carry.

[0052] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A mouth opening measurement training device, characterized in that: include: A sector-shaped scale (1) having scales for measuring the opening degree; A first measuring arm (3) which is fixedly connected to the sector-shaped scale (1) and is flush with the zero scale line of the sector-shaped scale (1); a second measuring arm (4) which is hinged to the first measuring arm (3), and one end of the hinged first measuring arm (3) and the second measuring arm (4) are both arranged concentrically with the sector scale (1), and the lengths of the first measuring arm (3) and the second measuring arm (4) are the same and greater than the radius of the sector scale (1); A torsion spring (10) has one end connected to the first measuring arm (3) and the other end connected to the second measuring arm (4); in a natural state of the torsion spring (10), the first measuring arm (3) and the second measuring arm (4) have an opening angle.

2. The mouth opening measurement training device according to claim 1, characterized in that: The sector-shaped scale (1) is fixedly connected to one side of the first measuring arm (3).

3. The mouth opening measurement training device according to claim 1, characterized in that: The sector-shaped scale (1) is fixedly connected to the middle part of the first measuring arm (3), and the second measuring arm (4) is provided with a groove, so that the first measuring arm (3) and the second measuring arm (4) do not interfere with the sector-shaped scale (1) when they are in an open or closed state.

4. The mouth opening measurement training device according to claim 1, characterized in that: The first measuring arm (3) and the second measuring arm (4) are both provided with a slot (9), and the two slots (9) are both arranged away from one end at which the first measuring arm (3) and the second measuring arm (4) are hinged.

5. The mouth opening measurement training device according to claim 1, characterized in that: The lengths of the first measuring arm (3) and the second measuring arm (4) are both twice the radius of the sector-shaped scale (1).

6. The mouth opening measurement training device according to claim 1, characterized in that: In the natural state of the torsion spring (10), the opening angle of the first measuring arm (3) and the second measuring arm (4) is 45°.

7. The mouth opening measurement training device according to claim 1, characterized in that: When the torsion spring (10) is in a natural state, the scale value corresponding to the second measuring arm (4) is 60 mm.

8. The mouth opening measurement training device according to any one of claims 1 to 7, characterized in that: The sector-shaped scale (1) comprises: a first scale (6), which is arranged corresponding to the first measuring arm (3) and the second measuring arm (4); a second scale (7), which is separated from the first scale (6) by a separation line (5), and the first scale (6) and the second scale (7) are arranged in opposite directions; A limiting protrusion (8) is located on one side of the sector-shaped scale (1) close to the second scale (7). The limiting protrusion (8) cooperates with the side of the sector-shaped scale (1) to form a limiting area, and the limiting area is used to abut against the teeth to limit the sector-shaped scale (1) when measuring the degree of mouth opening.

9. The mouth opening measurement training device according to claim 8, characterized in that: The surface of the limiting protrusion (8) is arranged to be smooth, and the limiting area is arranged to be inclined from a side close to the sector-shaped scale (1) to an end close to the dividing line (5).

10. The mouth opening measurement training device according to claim 9, characterized in that: The sector-shaped scale (1) is a right-angle sector-shaped scale.

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