CN219126803U - Oral cavity spreader for stomatology department - Google Patents

Abstract

The utility model discloses an oral cavity spreader for stomatology, which consists of two mutually hinged clamp rods, wherein the front ends of the clamp rods are provided with tooth support plates, the tail ends of the clamp rods are provided with handles, and an angle fixing assembly is arranged between the mutually hinged positions of the clamp rods and the handles. According to the utility model, the rotation angle between the tooth support plate and the clamp rod can be slightly adjusted through the two support rod-slide block structures which are oppositely arranged, so that the contact area of the tooth support plate and the teeth is increased, the formation of larger stress at the local tooth position is avoided, and the damage to the teeth is avoided. The utility model adopts a double-support rod structure, can disperse stress and avoid deformation caused by overlarge stress of materials. In addition, the sliding block is combined with the structure supported by the pressure reducing pad in a sliding way, so that the structure has better bearing capacity compared with a rotating shaft structure, and is not easy to deform.

Description

Oral cavity spreader for stomatology department

Technical Field

The utility model relates to the field of medicine medical appliances, in particular to an oral cavity spreader for stomatology.

Background

The treatment or operation part of the back teeth area is deeper, the mouth cavity, the tongue body and the cheek tongue side of the tooth body are tightly attached, the treatment or operation space is small and difficult to fix, the necessary spacing distance between the two sides of the tooth body can not be ensured, and the operation is easy to cause damage to the tongue body mucous membrane and the oral mucous membrane. Therefore, the oral cavity is firstly distracted and fixed by using the oral cavity distractor, and then the subsequent operation is carried out.

In the prior art, as in CN201711381650.5, an oral cavity opening fixing device is disclosed, and the opening fixing of the oral cavity can be performed by forming a support at the tooth position. In the process of pushing the oral cavity to be opened continuously by using the forceps body, the angle of the teeth is changed continuously, and the angle of the tooth fixing sleeve in the technology cannot be adjusted in the process of opening the oral cavity, so that partial teeth are stressed too much easily, and the teeth are damaged.

CN202123020238.5 discloses a technical solution that the fixing seat can be rotationally adjusted, but the following problems exist: 1. the fixing seat can freely rotate along the rotating shaft, so that the rotating angle is larger, the angle of the fixing seat is required to be adjusted in advance before the fixing seat is used, one side with the tooth groove is aligned to the tooth, the operation is complex, and the fixing seat is polluted due to touching the fixing seat in the operation process; 2. all stresses generated during opening are borne by the rotating shaft, so that the rotating shaft is stressed too much, and the rotating shaft is easy to deform, so that the service life is influenced.

Disclosure of Invention

The utility model aims to overcome the problems and provide the oral cavity spreader for the department of stomatology, which not only can achieve the aim of freely adjusting the angle in the spreading process, but also can ensure the stability and the strength of the structure and prolong the service life. In order to achieve the above purpose, the utility model adopts the following technical scheme:

an oral cavity spreader for stomatology comprises two mutually hinged clamp rods, wherein the front ends of the clamp rods are provided with tooth support plates, the tail ends of the clamp rods are provided with handles, and an angle fixing assembly is arranged between the mutually hinged positions of the clamp rods and the handles;

the tooth supporting plate is rotationally connected with the clamp rod.

As an improvement, two support rods which are oppositely arranged are arranged on one side, close to the clamp rod, of the tooth support plate, and sliding blocks are arranged at the tail ends of the support rods; the clamp rod is provided with an opening corresponding to the position of the supporting rod, an accommodating cavity for sliding of the sliding block is arranged in the opening, and pressure reducing pads are arranged at the top and the bottom of the accommodating cavity.

As an improvement, the pressure reducing pad is made of rubber having a high elastic modulus.

As an improvement, the clamp bar comprises a first clamp bar and a second clamp bar;

the angle fixing assembly includes: the movable clamping plate is matched with the rack, and the spring piece is used for promoting the movable clamping plate to be pressed on the rack;

the first clamp rod is provided with a slotted hole, and the tail end of the rack is fixedly connected with the second clamp rod and penetrates out of the slotted hole; the movable clamping plate is hinged with the inner wall of the slotted hole, a protruding part is arranged at the lower part of the slotted hole, and the spring piece is fixed on the first clamp rod and is pressed on the protruding part;

the movable clamping plate is provided with inverted teeth matched with the racks.

As an improvement, the top of the movable clamping plate is also provided with a second handle.

The utility model has the advantages that:

according to the utility model, the rotation angle between the tooth support plate and the clamp rod can be slightly adjusted through the two support rod-slide block structures which are oppositely arranged, so that the contact area of the tooth support plate and the teeth is increased, the formation of larger stress at the local tooth position is avoided, and the damage to the teeth is avoided.

The utility model adopts a double-support rod structure, can disperse stress and avoid deformation caused by overlarge stress of materials. In addition, the sliding block is combined with the structure supported by the pressure reducing pad in a sliding way, so that the structure has better bearing capacity compared with a rotating shaft structure, and is not easy to deform.

Drawings

Fig. 1 is a structural view of an oral cavity spreader for stomatology in example 1.

Fig. 2 is a view showing the structure of a dental support plate in an oral cavity distractor according to example 1.

Fig. 3 is a view showing the structure of the end of the jaw bar of the oral cavity spreader of example 1.

Fig. 4 is a structural view of a second clamp bar in an oral distractor according to embodiment 1.

Fig. 5 is a structural view of a first clamp bar in an oral distractor according to embodiment 1.

The figure indicates:

the clamp comprises a clamp body, a clamp rod 1, an opening 11, a receiving cavity 12, a clamp rod 13, a clamp rod 14, a clamp rod second, a clamp rod 15, a slot hole 2, a tooth supporting plate 21, a support rod 22, a slider 3, a handle 3, a 4-angle fixing component 41, a rack 42, a movable clamping plate 421, a protrusion 422, a pawl 43, a spring piece 44, a handle second and a pressure reducing pad 5.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

In the description of the embodiments of the present utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the product of the present utility model is conventionally put when used, it is merely for convenience of describing the present utility model and simplifying the description, and it does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang" and the like, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present utility model, "plurality" means at least 2.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

The embodiment discloses an oral cavity spreader for stomatology, which consists of two clamp rods 1 hinged with each other. The front end of the clamp rod 1 is provided with a tooth supporting plate 2, and the tail end is provided with a handle 3. An angle fixing component 4 is arranged between the hinging position of the clamp bars 1 and the handle 3.

Two support rods 21 are arranged on one side of the tooth support plate 2, which is close to the clamp rod 1, and sliding blocks 22 are arranged at the tail ends of the support rods 21. The clamp rod 1 is provided with an opening 11 corresponding to the position of the supporting rod 21, a containing cavity 12 for sliding a sliding block 22 is arranged in the opening 11, and the top and the bottom of the containing cavity 12 are respectively provided with a pressure reducing pad 5. The decompression pad 5 is made of rubber with high elastic modulus, and can play a limiting role on the sliding block 22, and meanwhile, when the angle of the tooth supporting plate 2 needs to be changed, the decompression pad 5 in the different accommodating cavities 12 can elastically deform to different degrees according to different stress received by the position of the decompression pad 5, so that the effect of rotating the tooth supporting plate 2 is achieved.

The clamp bar 1 comprises a first clamp bar 13 and a second clamp bar 14.

The angle fixing assembly 4 includes: a rack 41, a movable catch plate 42 cooperating with the rack 41, and a spring piece 43 urging the movable catch plate 42 to press against the rack 41.

The first clamp rod 13 is provided with a slotted hole 15, and the tail end of the rack 41 is fixedly connected with the second clamp rod 14 and penetrates out of the slotted hole 15; the movable clamping plate 42 is hinged with the inner wall of the slotted hole 15. The movable clamping plate 42 is provided with a protruding part 421 at the lower part of the slot hole, one end of the spring piece 43 is fixed on the first clamp rod 13, and the other end is pressed on the protruding part 421. The movable clamping plate 42 is provided with a pawl 422 matched with the rack 41.

The top of the movable clamping plate 42 is also provided with a second handle 44.

In use, the thumb and middle finger pass through the handles 3, respectively, and then the index finger pulls the second handle 44 to unlock the angle fixing assembly. The dental fixture plate 2 is then placed at the patient's teeth. The thumb and middle finger exert force to prop open the mouth of the patient. The support rod-slide block-decompression pad design in the embodiment can automatically adjust the rotation direction of the tooth support plate 2 according to the stress. When the opening reaches a specified degree, the index finger is loosened, and the spring piece 43 drives the movable clamping plate 42 to be clamped on the rack 41 for angle fixing.

The above description of the specific embodiments of the present utility model is given by way of example only, and the present utility model is not equivalent to the above-described specific embodiments. Any equivalent modifications and substitutions for the present utility model will occur to those skilled in the art, and are also within the scope of the present utility model. Accordingly, equivalent changes and modifications to the disclosed embodiments are intended to be included within the scope of the present utility model.

Claims (4)

1. The oral cavity spreader for the stomatology department is characterized by comprising two mutually hinged clamp rods, wherein the front ends of the clamp rods are provided with tooth supporting plates, the tail ends of the clamp rods are provided with handles, and an angle fixing assembly is arranged between the mutually hinged positions of the clamp rods and the handles;

the tooth supporting plate is rotationally connected with the clamp rod;

two support rods which are oppositely arranged are arranged on one side, close to the clamp rods, of the tooth support plate, and sliding blocks are arranged at the tail ends of the support rods; the clamp rod is provided with an opening corresponding to the position of the supporting rod, an accommodating cavity for sliding of the sliding block is arranged in the opening, and pressure reducing pads are arranged at the top and the bottom of the accommodating cavity.

2. The oral cavity spreader for stomatology according to claim 1, wherein the pressure reducing pad is made of rubber with high elastic modulus.

3. The oral cavity spreader of claim 1, wherein the clamp bar comprises a first clamp bar and a second clamp bar;

the angle fixing assembly includes: the movable clamping plate is matched with the rack, and the spring piece is used for promoting the movable clamping plate to be pressed on the rack;

the first clamp rod is provided with a slotted hole, and the tail end of the rack is fixedly connected with the second clamp rod and penetrates out of the slotted hole; the movable clamping plate is hinged with the inner wall of the slotted hole, a protruding part is arranged at the lower part of the slotted hole, and the spring piece is fixed on the first clamp rod and is pressed on the protruding part;

the movable clamping plate is provided with inverted teeth matched with the racks.

4. A dental oral spreader according to claim 3, wherein the top of the movable catch plate is further provided with a second handle.

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