Wedge

Abstract

The utility model provides a wedge which comprises a soft piece, a main body, a handle and a plurality of stop pieces, the soft piece can generate elastic deformation and comprises a head part and an insertion part which are connected, the head part is used for guiding the insertion part to enter slits between teeth, and the size of the insertion part is gradually increased from the middle to the two ends; the limiting part limits the insertion part to move along the insertion direction or the opposite direction of the insertion direction; the plurality of stop pieces are arranged on the periphery of the soft piece at intervals in the insertion direction, each stop piece can generate elastic deformation, and the stop pieces are gradually away from the soft piece in the insertion direction so as to limit the soft piece to move in the direction opposite to the insertion direction; the main body is strip-shaped and penetrates through the soft piece, and one end of the main body is close to the head part; the handle is connected to the other end of the body. The wedge can be stably inserted into a slit between teeth and is not easy to loosen, and the forming sheet arranged on the peripheral side of the teeth can be attached to the teeth so as to treat the teeth.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and specifically to a wedge. Background Art

[0002] In dental treatment, a forming sheet is used to surround the sides of the teeth. In order to make the forming sheet fit the teeth, a wedge is inserted into the gap between two adjacent teeth.

[0003] In the related art, the wedge is prone to loosening after being inserted into the tooth gap, which makes the forming sheet unable to fit the teeth well and affects the treatment effect of the teeth. Utility Model Content

[0004] In view of this, it is necessary to provide a wedge which is easy to insert into the tooth gap and is not prone to loosening.

[0005] In one embodiment of the present application, a wedge is provided, comprising a soft part, a main body, a handle and a plurality of stop plates. The soft part can undergo elastic deformation, and the soft part comprises a head and an insertion part connected to each other. The head is used to guide the insertion part into the tooth gap, and the size of the insertion part gradually increases from the middle to both ends to limit the movement of the insertion part in the insertion direction or in the opposite direction of the insertion direction; a plurality of stop plates are arranged at intervals on the periphery of the soft part along the insertion direction, and each stop plate can undergo elastic deformation, and the stop plates gradually move away from the soft part in the insertion direction to limit the movement of the soft part in the opposite direction of the insertion direction; the main body is in the shape of an elongated strip, and the main body is passed through the soft part, and one end of the main body is close to the head; the handle is connected to the other end of the main body.

[0006] In the above-mentioned wedge, one end of the main body is driven by the handle to insert the soft part into the gap between teeth along the insertion direction, so that the insertion part enters the gap between teeth through the head, and the middle of the insertion part is arranged in the gap between teeth. In this way, in the absence of external force, the insertion part is not easy to move from the middle with a smaller size to the two ends with a larger size, so that the insertion part is not easy to move in the insertion direction or the opposite direction of the insertion direction, and is not easy to loosen; by arranging multiple stopper sheets at intervals on the outer periphery of the soft part, it can abut against the teeth, so that the forming sheet can fit the teeth, and the arrangement of multiple stopper sheets gradually away from the soft part along the insertion direction can prevent the soft part from moving in the opposite direction of the insertion direction without affecting the insertion of the soft part into the gap between teeth along the insertion direction, so that the soft part is not easy to loosen. Therefore, the above-mentioned wedge can be stably inserted into the gap between teeth, is not easy to loosen, and can make the forming sheet arranged on the peripheral side of the teeth fit the teeth, so as to treat the teeth.

[0007] In some embodiments, the soft part includes a first side wall, a second side wall and a third side wall, which together form a channel through which the main body can pass, and the distance between the first side wall and the second side wall gradually decreases toward the end away from the third side wall.

[0008] In some embodiments, the stopping piece extends from the third side wall toward the first side wall and the second side wall to cover a portion of the first side wall and the second side wall.

[0009] In some embodiments, the stopper extends to two-thirds of the distance between the first side wall and the second side wall and the third side wall.

[0010] In some embodiments, the stopper has a thickness along the insertion direction, and the thickness gradually decreases from the center line of the soft member toward an end away from the soft member.

[0011] In some embodiments, the size of the head gradually increases toward the insertion portion.

[0012] In some embodiments, the main body includes a connecting portion and an enlarged portion connected to each other, the enlarged portion enlarges from the connecting portion, the connecting portion is passed through the soft part, the enlarged portion is arranged at the end of the soft part away from the handle, and the enlarged portion is used to stop the soft part from moving relative to the main body along the insertion direction.

[0013] In some embodiments, the size of the enlarged portion gradually increases toward the connecting portion.

[0014] In some embodiments, the main body further comprises a convex ring, the size of which is larger than the size of the connecting portion, the convex ring is arranged between the connecting portion and the handle, and the convex ring is used to stop the soft part from moving in the opposite direction of the insertion direction relative to the main body.

[0015] In some embodiments, the soft part is a silicone part or a thermoplastic elastic part, and the main body is a plastic part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a wedge in one embodiment of the present application.

[0017] Figure 2 for Figure 1 Another view of the structural diagram of the middle wedge.

[0018] Figure 3 for Figure 1 Exploded view of the middle wedge.

[0019] Figure 4 for Figure 1 Schematic diagram of the structure of the soft part and the stopper.

[0020] Figure 5 for Figure 1 Top view of the middle wedge.

[0021] Figure 6 for Figure 1 Bottom view of the middle wedge.

[0022] Main component symbols

[0023] 100 - wedge;

[0024] 10-soft part, 11-head, 12-insertion part, 101-first side wall, 102-second side wall, 103-third side wall, 104-channel;

[0025] 20-main body, 21-connecting part, 22-bulging part, 23-convex ring;

[0026] 30-handle, 31-connection hole;

[0027] 40- stopper;

[0028] a-insertion direction, b-center line. DETAILED DESCRIPTION

[0029] The technical solution of the present application will be described below in conjunction with the drawings in the implementation modes of the present application. Obviously, the described implementation modes are only part of the implementation modes of the present application, rather than all the implementation modes.

[0030] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time.

[0031] Furthermore, the terms “first,” “second,” “third,” etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0033] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0034] See also Figure 1 and Figure 2In one embodiment of the present application, a wedge 100 is provided, comprising a soft part 10, a main body 20, a handle 30 and a plurality of stoppers 40. The main body 20 can be connected to the soft part 10 to support the soft part 10. The soft part 10 can undergo elastic deformation and can avoid damaging the gums after being inserted into the tooth gap. Compared with the main body 20 with higher hardness, the soft part 10 can improve the patient's comfort. The plurality of stoppers 40 can undergo elastic deformation to fill the tooth gap and abut against the teeth to make the forming sheet fit the teeth. Among them, the soft part 10 is a silicone part, which can protect the gums to a certain extent and improve the patient's comfort. The main body 20 is a plastic part that can support the soft part 10. The stopper 40 is a thin silicone sheet, which is not easy to damage the patient's gums and can improve the patient's comfort.

[0035] In some embodiments, see Figure 3 The soft part 10 includes a head 11 and an inserting part 12 connected to each other. The size of the head 11 is smaller than the inserting part 12, so that the inserting part 12 can be guided into the tooth gap through the head 11. Figure 5 and Figure 6 The size of the insertion part 12 gradually increases from the middle to the two ends. When the middle of the insertion part 12 is set in the tooth gap, the insertion part 12 is limited to move along the insertion direction a or the opposite direction of the insertion direction a to prevent the soft part 10 from loosening.

[0036] In some embodiments, see Figures 1 to 6 A plurality of stopper sheets 40 are arranged at intervals on the outer periphery of the soft part 10 along the insertion direction a, so that the soft part 10 provided with the stopper sheets 40 expands outward as a whole, can better fill the tooth gap, and abut the forming sheet surrounding the tooth periphery against the tooth, so that the forming sheet fits the tooth. The stopper sheets 40 gradually move away from the soft part 10 along the insertion direction a, so as to limit the movement of the soft part 10 in the opposite direction of the insertion direction a, so that the soft part 10 is not easy to loosen.

[0037] In some embodiments, see Figure 3 The main body 20 is in a long strip shape. The main body 20 is inserted into the soft part 10. One end of the main body 20 is close to the head 11 to drive the head 11 of the soft part 10 to be inserted into the tooth gap. The handle 30 is connected to the other end of the main body 20 for operation.

[0038] When in use, the medical staff aligns one end of the main body 20 with the tooth gap through the handle 30, and drives the one end of the main body 20 to be inserted into the tooth gap along the insertion direction a until the middle of the insertion portion 12 is located in the tooth gap. At this time, the wedge 100 is stably inserted into the tooth gap and is not easy to loosen, and the forming sheet disposed on the peripheral side of the tooth can fit the tooth so as to treat the tooth.

[0039] In some embodiments, see Figure 4, the soft part 10 includes a first side wall 101, a second side wall 102 and a third side wall 103. The first side wall 101, the second side wall 102 and the third side wall 103 together form a channel 104 for accommodating the main body 20 to pass through, and the distance between the first side wall 101 and the second side wall 102 gradually decreases toward the end away from the third side wall 103. The channel 104 is located at the center of the soft part 10. The first side wall 101, the second side wall 102 and the third side wall 103 are located at the periphery of the channel. The gap between the teeth at the end close to the gums is wider, and the gap between the teeth at the end away from the gums is narrower. When the soft part 10 is set in the gap between the teeth, the third side wall 103 is close to the gums, and the connection area between the first side wall 101 and the second side wall 102 is away from the gums, so that the shape of the soft part 10 is adapted to the shape of the gap between the teeth to fill the gap between the teeth.

[0040] As an illustrative example, the upper end of the first side wall 101 is connected to the upper end of the second side wall 102 , and both ends of the third side wall 103 are connected to the lower end of the first side wall 101 and the lower end of the second side wall 102 , respectively.

[0041] In some embodiments, see Figures 1 to 6 The stopper sheet 40 extends from the third side wall 103 toward the first side wall 101 and the second side wall 102 to cover part of the first side wall 101 and the second side wall 102. This enables the stopper sheet 40 to better fill the gap between teeth to press the forming sheet against the teeth. Compared with the stopper sheet 40 only arranged on the first side wall 101 and the second side wall 102, the stopper sheet 40 covering the third side wall 103, part of the first side wall 101 and part of the second side wall 102 has higher strength, and the stopper sheet 40 as a whole is not easy to be damaged. At the same time, such a stopper sheet 40 can also better prevent the soft piece 10 inserted in the gap between teeth from moving in the opposite direction of the insertion direction a.

[0042] Since the gap between the teeth is narrower at the end away from the gum, in some embodiments, see Figure 3 The stopper 40 extends to two-thirds of the distance between the first side wall 101 and the second side wall 102 and the third side wall 103. This can prevent the stopper 40 from expanding outward in a narrow gap between teeth and affecting use, so that the soft part 10 can better fill the patient's gap between teeth.

[0043] In some embodiments, see Figure 5 and Figure 6 The connection area between the first side wall 101 and the second side wall 102 is a straight line, the soft part 10 is symmetrical along the center line b, and the center line b of the soft part 10 coincides with the straight line. The stopper 40 is symmetrical along the center line b. When the soft part 10 is inserted into the tooth gap, the side faces of two adjacent teeth can be subjected to the same force, which is convenient for medical staff to use.

[0044] In some embodiments, see Figures 1 to 5The stopper sheet 40 has a thickness along the insertion direction a, and the thickness gradually decreases from the center line b of the soft part 10 toward the end away from the soft part 10. The stopper sheet 40 expands outward as a whole, and the thickness of the stopper sheet 40 is the smallest at the part farthest from the outer periphery of the soft part 10. When in use, the part of the stopper sheet 40 farthest from the outer periphery of the soft part 10 fills the widest part of the tooth gap. According to the size of the tooth gap, this part will undergo a certain elastic deformation and press the forming sheet against the teeth. The thickness of this part is set to be smaller so that this part undergoes elastic deformation, which can better adapt to the patient's tooth gap. The part of the stopper sheet 40 close to the center line b only needs to undergo a smaller deformation, or even no deformation. Setting the thickness of this part to be larger can increase the strength of the stopper sheet 40 to prevent the stopper sheet 40 from being damaged. The closer to the center line b, the smaller the amplitude of the elastic deformation that the stopper sheet 40 needs to undergo. Therefore, gradually reducing the thickness of the stopper sheet 40 is in line with the force condition of the stopper sheet 40 when the wedge 100 is used.

[0045] In some embodiments, see 2 and Figure 6 In the third side wall 103, the thickness of the stopper sheet 40 gradually decreases from the center line b toward the two ends of the third side wall 103. When in use, the portion of the stopper sheet 40 located at the center line b is used to contact the gums, and this portion does not need to be deformed during use. Setting the portion of the stopper sheet 40 located at the center line b to be thicker will not affect the use, and can also increase the strength of the stopper sheet 40, making the stopper sheet 40 less likely to be damaged. The portion of the stopper sheet 40 extending toward the two ends of the third side wall 103 is located at the widest part of the tooth gap, and this portion will abut against the teeth and deform. Setting the thickness of this portion to be smaller is conducive to the deformation of the stopper sheet 40 and pressing the forming sheet against the teeth.

[0046] In some embodiments, see Figures 1 to 6 The size of the head 11 gradually increases toward the insertion portion 12. The insertion portion 12 can be guided to be inserted into the tooth gap.

[0047] In some embodiments, see Figure 3 The main body 20 includes a connecting portion 21 and an enlarged portion 22 connected to each other. The enlarged portion 22 is enlarged from the connecting portion 21. When the main body 20 is inserted into the soft member 10, the connecting portion 21 is inserted into the soft member 10 to support the soft member 10, and the enlarged portion 22 is provided at one end of the soft member 10 away from the handle 30, and can stop the soft member 10 from moving along the insertion direction a relative to the main body 20. The hardness of the enlarged portion 22 provided at one end of the soft member 10 is greater than the hardness of the soft member, and can drive the soft member 10 into the tooth gap.

[0048] In some embodiments, see Figures 1 to 3 , Figure 5 and Figure 6 The size of the enlarged portion 22 gradually increases toward the connecting portion 21, so as to guide the soft member 10 to be inserted into the tooth gap.

[0049] In some embodiments, the main body 20 further includes a convex ring 23. The size of the convex ring 23 is larger than the size of the connecting portion 21. The convex ring 23 is disposed between the connecting portion 21 and the handle 30 to stop the soft component 10 from moving in the opposite direction of the insertion direction a relative to the main body 20. Therefore, the convex ring 23 and the enlarged portion 22 can stably arrange the soft component 10 at the connecting portion 21 of the main body 20, prevent the soft component 10 from sliding relative to the main body 20, and facilitate the main body 20 to provide support for the soft component 10 and drive the soft component 10 to be inserted into the tooth gap.

[0050] In some embodiments, the handle 30 has a connection hole 31. The handle 30 and the connection hole 31 are used to connect an operating tool. The operating tool is a dental wedge inserter, which is connected to the connection hole 31 and accurately places the wedge 100 in the tooth gap or removes it.

[0051] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application and are not intended to be limiting of the present application. As long as they are within the spirit and scope of the present application, appropriate changes and modifications to the above embodiments are within the scope of the present application.

Claims

1. A wedge, characterized in that: include: A soft part capable of elastic deformation, the soft part comprising a head and an insertion part connected to each other, the head being used to guide the insertion part into the tooth gap, the size of the insertion part gradually increasing from the middle to both ends to limit the movement of the insertion part along the insertion direction or in the opposite direction of the insertion direction; A plurality of stopper plates are arranged at intervals on the outer periphery of the soft part along the insertion direction, each of the stopper plates can be elastically deformed, and the stopper plates gradually move away from the soft part along the insertion direction to limit the movement of the soft part in the opposite direction of the insertion direction; The main body is in the shape of a long strip, and the main body is inserted into the soft part, and one end of the main body is close to the head; A handle is connected to the other end of the main body.

2. The wedge according to claim 1, characterized in that: The soft part includes a first side wall, a second side wall and a third side wall. The first side wall, the second side wall and the third side wall together form a channel through which the main body can pass, and the distance between the first side wall and the second side wall gradually decreases toward an end away from the third side wall.

3. The wedge according to claim 2, characterized in that: The stopping piece extends from the third side wall toward the first side wall and the second side wall to cover a portion of the first side wall and the second side wall.

4. The wedge according to claim 3, characterized in that: The stopper extends to a position where the first side wall and the second side wall are two-thirds of the distance from the third side wall.

5. The wedge according to claim 2, characterized in that: The stopper has a thickness along the insertion direction, and the thickness gradually decreases from the center line b of the soft part toward an end away from the soft part.

6. The wedge according to claim 1, characterized in that: The size of the head portion gradually increases toward the insertion portion.

7. The wedge according to any one of claims 1 to 6, characterized in that: The main body includes a connecting portion and an enlarged portion connected to each other, the enlarged portion enlarges from the connecting portion, the connecting portion is penetrated through the soft part, the enlarged portion is arranged at one end of the soft part away from the handle, and the enlarged portion is used to stop the soft part from moving relative to the main body along the insertion direction.

8. The wedge according to claim 7, characterized in that: The size of the enlarged portion gradually increases toward the connecting portion.

9. The wedge according to claim 7, characterized in that: The main body also includes a convex ring, the size of which is larger than the size of the connecting portion, the convex ring is arranged between the connecting portion and the handle, and the convex ring is used to stop the soft part from moving in the opposite direction of the insertion direction relative to the main body.

10. The wedge according to claim 1, characterized in that: The soft part is a silicone part or a thermoplastic elastic part, and the main body is a plastic part.

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