Dental and medical mirror without screw loosening phenomenon

Abstract

The present invention relates to a dental and medical mirror for use in dentistry and hospitals, the dental and medical mirror comprising: a mirror main body which is gripped by a hand during use; and a mirror holder part which is coupled to the mirror main body part, has a mirror provided at one end thereof, and is replaced after use for a certain period of time, the mirror main body part and the mirror holder part are coupled to each other easily and firmly by a simple insertion operation, and the mirror holder part is provided with a mirror at one end thereof and can be replaced after use for a certain period of time. And the phenomenon that the screw rod is loosened in the operation of using the mirror can be completely eliminated.

Description

Technical Field

[0001] The present invention relates to a dental and medical mirror used in dentistry and hospitals, and more particularly to a dental and medical mirror which, as a dental and medical mirror, includes: a mirror main body portion that is grasped by hand during use; and a mirror support portion that is combined with the mirror main body portion and has a mirror provided at one end and is replaced after a certain period of use. The combination form of the mirror main body portion and the mirror support portion adopts an elastic combination method instead of the existing screw combination method. Through a simple insertion operation, they can be easily and firmly combined with each other, and the screw loosening phenomenon that occurs during the operation of using the mirror can be completely eliminated. Background Art

[0002] Generally, a dental and medical mirror, as a tool used for treating or examining the oral cavity, includes: a mirror main body portion that is grasped by hand during use; and a mirror support portion that has a mirror installed at one end and can be combined with the mirror main body portion through a screw fastening connection method at the other end. The dental and medical mirror as described above is mainly used to insert into the oral cavity to illuminate dark places, or to push aside and pull tissues such as the tongue or cheek.

[0003] Refer to Figure 1 and Figure 2 Previously, a dental and medical mirror included: a mirror support portion 1 having a mirror 3 provided at one end; and a mirror main body portion 2 formed in a rod shape so that an operator can easily grasp it by hand when using the mirror. An axial hole is formed along the length direction at one end of the mirror main body portion 2, and one end of the mirror support portion 1 is inserted and combined into the axial hole of the mirror main body portion 2. Threads are formed on the inner side surface of a certain part of the axial hole of the mirror main body portion 2, and corresponding threads are formed at one end of the mirror support portion 1 inserted into the axial hole of the mirror main body portion 2. Therefore, as Figure 2 shown, the mirror support portion 1 and the mirror main body portion 2 have a structure that can be combined with each other through a screw fastening connection method by a threaded joint portion 4.

[0004] However, the above-mentioned conventional dental and medical mirror has the following problems: Especially when repeatedly performing operations such as pushing aside and pulling tissues such as the cheek or tongue, at an unexpected moment during the operation, the threaded joint portion connecting the mirror main body portion and the mirror support portion often loosens, resulting in the interruption of the operation. It is necessary to rotate again to make them tightly connected to each other before use, which is troublesome and at the same time suddenly reduces the attention of medical personnel who need to concentrate on treatment and examination. Summary of the Invention

[0005] An object of the present invention is to provide a dental and medical mirror that can easily and firmly combine a mirror main body portion and a mirror support portion through a simple insertion operation, and can also be easily disassembled (disengaged, separated) when necessary. In particular, during a surgical procedure where the mirror is repeatedly used to push aside the cheek or tongue, the combination of the mirror main body portion held by hand and the mirror support portion has a function of never loosening or disintegrating.

[0006] To achieve the above object, an embodiment of the present invention provides a dental and medical mirror used for oral examination and treatment, which is characterized by including: a mirror main body portion having a shaft hole in the length direction formed at one end, and a C-shaped spring receiving portion capable of receiving a C-shaped spring provided on the outer side surface of the side where the shaft hole is formed, and at least one fastening connector receiving side through hole penetrating from the outer side surface to the shaft hole to receive a fastening connector is formed at a certain position of the C-shaped spring receiving portion; a fastening connector located in the fastening connector receiving side through hole; a C-shaped spring located in the C-shaped spring receiving portion, and at least one first fastening connector mounting portion is provided at a position corresponding to the fastening connector receiving side through hole; and a mirror support portion having a mirror provided at one end, and a fastening connection portion including at least one second fastening connector mounting portion is provided on the outer side surface of the other end inserted into the shaft hole of the mirror main body portion.

[0007] Preferably, the fastening connection portion further includes a shaft hole insertion guiding portion, which can avoid the entry resistance caused by the fastening connector protruding toward the shaft hole side when the fastening connection portion of the mirror support portion enters the shaft hole of the mirror main body portion.

[0008] More preferably, the shaft hole insertion guiding portion is formed in the form of a groove or a flat portion from the end of the fastening connection portion to the same position on the circumference where at least the second fastening connector mounting portion is formed.

[0009] Preferably, the C-shaped spring receiving portion is formed in the form of a groove along the circumference of the mirror main body portion on the outer side surface of the side where the shaft hole is formed.

[0010] More preferably, the first fastening connector mounting portion and the second fastening connector mounting portion are constituted by grooves or through holes capable of receiving and supporting the fastening connector.

[0011] Preferably, in order to prevent slipping when fastening the mirror portion or using the mirror, at least one anti-slip portion recessed toward the vertical central axis in the length direction is provided on the outer side surface of the adjacent portion of the C-shaped spring receiving portion.

[0012] More preferably, three anti-slip portions are formed in the form of grooves or flats along the circumference.

[0013] According to the present invention, the advantage is that the mirror support part and the mirror main body part can not only be easily and firmly combined with each other through a simple insertion operation, but also can be easily disassembled when necessary. Through this firm characteristic combination structure, especially during a surgical procedure where the mirror is repeatedly used to push aside the cheek or tongue, etc., the combination of the mirror main body part held by hand and the mirror support part has the advantage of never loosening or disassembling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a perspective view of a dental and medical mirror according to the prior art.

[0015] Figure 2 is an assembled perspective view of a dental and medical mirror according to the prior art.

[0016] Figure 3 is a perspective view of a dental and medical mirror according to an embodiment of the present invention.

[0017] Figure 4 is an exploded perspective view of a dental and medical mirror according to an embodiment of the present invention.

[0018] Figure 5 is an assembled perspective view of a dental and medical mirror according to an embodiment of the present invention.

[0019] Figure 6 (a) and Figure 6 (b) are combined cross-sectional views showing the process of inserting the mirror support part into the mirror main body in a dental and medical mirror according to an embodiment of the present invention in sequence.

[0020] Figure 7 (a) and Figure 7 (b) are combined cross-sectional views showing the process of rotating and combining the mirror support part relative to the mirror main body in a state where the mirror support part is inserted into the mirror main body in a dental and medical mirror according to an embodiment of the present invention in sequence. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Hereinafter, with reference to the drawings, preferred embodiments of the present invention will be described in more detail.

[0022] Figure 3 is a perspective view of a dental and medical mirror according to an embodiment of the present invention, Figure 4 is an exploded perspective view of a dental and medical mirror according to an embodiment of the present invention, Figure 5 is an assembled perspective view of a dental and medical mirror according to an embodiment of the present invention.

[0023] Refer to Figures 3 to 5, a dental and medical mirror 100 according to an embodiment of the present invention includes: a mirror main body 10 that can be grasped by an operator and has a shaft hole in the length direction formed at one end; and a mirror support part 20 that has a mirror 30 provided at one end and a fastening connection part inserted into the shaft hole of the mirror main body provided at the other end.

[0024] On the outer side surface of the mirror main body 10 on the side where the shaft hole is formed, there is a C-shaped spring receiving part 12 that can receive the C-shaped spring 30. Preferably, as Figure 4 shown, the C-shaped spring receiving part 12 is formed in a groove shape along the circumference of the mirror main body 10 on the outer side surface of the side where the shaft hole is formed. As Figure 4 shown, at least one fastening connector receiving side through hole 14 that penetrates from the outer side surface to the shaft hole is formed at a certain position of the C-shaped spring receiving part 12.

[0025] As Figure 5 shown, a fastening connector 40 is provided in the fastening connector receiving side through hole 14. As Figure 4 and Figure 5 shown, the C-shaped spring 30 is located in the C-shaped spring receiving part 12 of the mirror main body 10 and has at least one first fastening connector mounting part 32 at a position corresponding to the fastening connector receiving side through hole 14. Preferably, the first fastening connector mounting part 32 of the C-shaped spring 30 is formed in the shape of a groove or through hole that can receive and support the fastening connector 40.

[0026] The fastening connector 40 is located between the fastening connector receiving side through hole 14 of the mirror main body 10 and the first fastening connector mounting part 32 of the C-shaped spring 30, and is configured to press the fastening connector 40 mounted in the fastening connector receiving side through hole 14 toward the shaft hole through the elastic action of the C-shaped spring 30.

[0027] A mirror 50 is provided at one end of the mirror support part 20, and a fastening connection part including at least one second fastening connector mounting part 22 is provided on the outer side surface of the other end inserted into the shaft hole of the mirror main body 10. Preferably, the second fastening connector mounting part 22 of the mirror support part 20 is formed in the shape of a groove or through hole that can receive and support the fastening connector 40. As Figure 4 shown, the fastening connection part further includes a shaft hole insertion guiding part 24. When the fastening connection part of the mirror support part 20 enters the shaft hole of the mirror main body 10, the shaft hole insertion guiding part 24 can avoid the entry resistance caused by the fastening connector 40 protruding toward the shaft hole side.

[0028] Preferably, the shaft hole insertion guiding part 24 is formed in the shape of a groove or flat part from the end of the fastening connection part to the same position on the circumference where at least the second fastening connector mounting part 22 is formed.

[0029] Reference Figure 4 , at least one anti-slip portion 16 that is recessed toward the vertical central axis in the length direction is provided on the outer side surface of the adjacent portion of the C-shaped spring housing portion 12, thereby preventing the hand from slipping when fastening and connecting the mirror portion or using the mirror. Preferably, at least two, preferably three, anti-slip portions 16 are formed along the circumference in the form of grooves or planes.

[0030] Figure 5 is an assembled perspective view of a dental and medical mirror according to an embodiment of the present invention. In particular, Figure 5 shows the state before the mirror main body portion 10 and the mirror bracket portion 20 of the dental and medical mirror of the present invention are combined. Reference Figure 5 , the fastening connector 40 is located between the through hole 14 of the fastening connector housing side surface of the mirror main body portion 10 and the first fastening connector mounting portion 32 of the C-shaped spring 30, and due to the elastic action of the C-shaped spring 30, a part of the fastening connector 40 is kept in a state of protruding toward the shaft hole side. In order to smoothly insert the fastening connection portion of the mirror bracket portion 20 into the shaft hole of the mirror main body portion 10 without the resistance caused by the protruding fastening connector 40, the shaft hole insertion guide portion 24 formed at one end of the mirror bracket portion 20 must face the shaft hole and be inserted along the direction corresponding to the protruding fastening connector 40. Therefore, the function of the shaft hole insertion guide portion 24 is to guide the insertion direction of the mirror bracket portion 20 so that when the fastening connection portion of the mirror bracket portion 20 enters the shaft hole of the mirror main body portion 10, the entry resistance caused by the fastening connector 40 protruding toward the shaft hole side can be avoided.

[0031] Figure 6 (a) and Figure 6 (b) are assembled cross-sectional views showing the process of inserting the mirror bracket portion into the mirror main body portion in a dental and medical mirror according to an embodiment of the present invention in sequence, Figure 7 (a) and Figure 7 (b) are assembled cross-sectional views showing the process of rotating and combining the mirror bracket portion with respect to the mirror main body portion in the state where the mirror bracket portion is inserted into the mirror main body portion in a dental and medical mirror according to an embodiment of the present invention in sequence.

[0032] Figure 6 (a) shows the state before insertion, Figure 6 (b) is a view showing an intermediate process in which a part of the mirror bracket portion 20 is inserted into the mirror main body portion 10. Reference Figure 6(b), when the shaft hole insertion guiding portion 24 formed at one end of the mirror bracket portion 20 faces the shaft hole and is inserted in a direction corresponding to the protruding fastening connection member 40, due to the structural feature of the shaft hole insertion guiding portion 24 formed in the form of a groove or a flat portion, it can face the shaft hole and be smoothly inserted without any entry resistance caused by the protruding fastening connection member 40.

[0033] Figure 7 (a) is a view showing a state where the mirror bracket portion 20 is completely inserted into the bottom of the mirror main body portion 10. In such a state where the mirror bracket portion 20 is completely inserted into the mirror main body portion 10, as Figure 7 (b) shows, when the mirror bracket portion 20 is slowly rotated relative to the mirror main body portion 10 (or when the mirror main body portion 10 is rotated relative to the mirror bracket portion 20, the effect is the same), at a specific position where the second fastening connection member mounting portion 22 of the mirror bracket portion 20 and the protruding fastening connection member 40 correspond to each other, the fastening connection member 40 is mounted on the second fastening connection member mounting portion 22 of the mirror bracket portion 20. As a result, through the fastening connection member 40 pressurized by the elastic action of the C-shaped spring, a firm elastic connection between the mirror main body portion 10 and the mirror bracket portion 20 is completed.

[0034] Although the present invention has been described in detail with reference to specific embodiments in the above with reference to the accompanying drawings, the present invention is not limited to the above specific structures. Those with general knowledge in the art can also make various modifications or changes to the present invention without departing from the technical idea and the scope of rights of the present invention recorded in the patent claims. However, it is intended to state in advance that such simple design material modifications or deformed structures clearly fall within the scope of rights of the present invention.

Claims

1. A dental and medical mirror, as a dental and medical mirror used during oral examination and treatment, is characterized in that, Comprising: A mirror main body having a shaft hole in the length direction formed at one end, and a C-shaped spring receiving portion for receiving a C-shaped spring provided on the outer side surface of the side where the shaft hole is formed. At a certain position of the C-shaped spring receiving portion, at least one fastening connection member receiving side through hole is formed which penetrates from the outer side surface to the shaft hole to receive a fastening connection member; A fastening connection member located in the fastening connection member receiving side through hole; A C-shaped spring located in the C-shaped spring receiving portion, and at least one first fastening connection member mounting portion is provided at a position corresponding to the fastening connection member receiving side through hole; and A mirror support portion having a mirror provided at one end, and a fastening connection portion including at least one second fastening connection member mounting portion provided on the outer side surface of the other end inserted into the shaft hole of the mirror main body.

2. The dental and medical mirror according to claim 1, wherein The fastening connection portion further includes a shaft hole insertion guiding portion, which can avoid the insertion resistance caused by the fastening connection member protruding toward the shaft hole side when the fastening connection portion of the mirror support portion enters the shaft hole of the mirror main body.

3. The dental and medical mirror according to claim 2, wherein The shaft hole insertion guiding portion is formed in the form of a groove or a flat portion from the end of the fastening connection portion to the same position on the circumference where at least the second fastening connection member mounting portion is formed.

4. The dental and medical mirror according to claim 1, wherein The C-shaped spring receiving portion is formed in the form of a groove along the circumference of the mirror main body on the outer side surface of the side where the shaft hole is formed.

5. The dental and medical mirror according to claim 1, wherein The first fastening connection member mounting portion and the second fastening connection member mounting portion are constituted by grooves or through holes capable of receiving and supporting the fastening connection member.

6. The dental and medical mirror according to claim 1, wherein In order to prevent slipping when fastening the mirror portion or using the mirror, at least one anti-slip portion recessed toward the vertical central axis in the length direction is provided on the outer side surface of the adjacent portion of the C-shaped spring receiving portion.

7. The dental and medical mirror according to claim 6, wherein Three anti-slip portions are formed in the form of grooves or flats along the circumference.

Images