Lip retractor for oral digital photographyTechnical Field
The invention relates to the technical field of oral digital photographing auxiliary equipment, in particular to a lip retractor for oral digital photographing.
Background
The oral photography is one of important links in oral treatment, is beneficial to collecting clinical data for preoperative diagnosis and analysis, and enables transmission of aesthetic information and treatment plans to be more visual, and can be used as legal basis if necessary. In the process of oral photography, a lip retractor is often used to retract the tissues of the lips and cheeks, exposing the soft and hard tissues in the mouth, and allowing more light to enter the interior of the oral cavity.
However, the lip retractor commonly used in clinic at present cannot be adjusted according to the opening degree and the tension degree of the labial muscles of a patient, and the jaw which is photographed cannot expose the whole dentition, so that the lip retractor is difficult to be used as a reference for oral clinical treatment. In addition, when the oral photography is performed, two doctors are required to cooperate, one doctor holds the two oral retractor to pull the corners of the mouth of the two sides of the oral cavity of the patient backwards, and then the other doctor performs the oral photography.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the lip retractor for the oral digital photography, which not only can adjust the width of the lip retractor to adapt to different opening degrees and tension degrees of lip muscles of different patients, but also can adjust and fix the distance between the two lip retractors so as to facilitate the oral digital photography.
In order to solve the technical problems, the invention adopts the following technical scheme:
The lip retractor for digital photography of the oral cavity comprises a lip retractor, a fixing rod for fixing the lip retractor and a telescopic horizontal plate, wherein the fixing rod is fixedly arranged on the horizontal plate; the lip retractor comprises an angle drag hook and a fixed handle, wherein the angle drag hook is telescopically connected to two sides of the fixed handle, and the fixed handle is vertically connected to the fixed rod.
According to the lip retractor for oral digital photography, the distance between the two fixing rods is adjusted through the telescopic horizontal plate to adjust and fix the distance between the two lip retractors, and the width of the lip retractors can be adjusted through telescopic connection of the oral angle drag hook and the fixing handle, so that the lip retractor is suitable for different mouth opening degrees of oral cavities of different patients and the tension degree of lip muscles, is suitable for patients of any age groups, and improves the comfort level of the patients; in addition, the positions of the two lip retractors can be fixed, one person can finish the operation during the oral digital photographing operation, the operation is convenient and quick, and the working efficiency is improved.
Further, the connecting part of the fixing rod and the fixing handle is provided with an elastically telescopic fixing clamp, the fixing clamp comprises two fixing wrapping sheets with the same structure, and the two fixing wrapping sheets are connected by an elastically telescopic elastic piece. The fixing clamp capable of elastically stretching is arranged, so that the fixing of the lip retractor is convenient and quick, when the lip retractor needs to be fixed, one fixing wrapping sheet is pulled up, and the fixing handle of the lip retractor is inserted, so that the fixing of the lip retractor can be completed.
Further, the horizontal plate comprises a middle plate and sliding plates arranged at two ends of the middle plate, the fixing rods are fixedly arranged on the sliding plates, and the sliding plates are in sliding connection with the middle plate. The distance between the two lip retractors is adjusted by adjusting the relative positions of the fixing plate and the middle plate and adjusting the positions between the two fixing rods so as to adapt to patients of different age groups, and the applicability is strong.
Further, a plurality of parallel plug-in connection rods are arranged on the sliding plate, and plug-in holes matched with the plug-in connection rods are formed in the middle plate; and the plug hole is provided with a limiting piece for limiting the relative displacement of the plug rod and the plug hole. The sliding plate is connected with the middle plate in a plugging manner, so that the distance between the two lip retractors can be conveniently adjusted, and the limiting piece is arranged to prevent the sliding plate from being separated from the middle plate.
Further, a connecting rod is hinged on the sliding plate, and one end of the connecting rod is hinged with a fixed block; the center of the middle plate is penetrated with a screw rod, and the fixed block is fixedly connected with the screw rod. The screw rod is screwed in or out of the middle plate to widen or shorten the distance between the two lip retractors, so that the operation is convenient and quick; when the distance between the two lip retractors is adjusted to a proper position, the relative position between the middle plate and the sliding plate is kept unchanged under the action of the screw rod and the connecting rod, so that the full exposure of the dental crowns of the patient can be kept, the photographic process is convenient, the mouth corners on two sides of the oral cavity of the patient do not need to be pulled backwards by one person holding two oral cavity retractor, the oral cavity photographic process is performed by the other person, and the working efficiency is improved.
Further, the angle drag hooks are symmetrically arranged on two sides of the fixed handle; the fixed handle is of a Y-shaped structure made of polystyrene and comprises a handle end and a clamping end matched with the angle drag hook; the angle drag hook is of an arc-shaped structure and consists of an inner layer structure made of polystyrene and an outer layer structure supported by polyurethane. The device is used for preventing the cheeks of the patient from being hooked by the angle drag hook, and improving the comfort of the patient.
Further, a spring screw is arranged between the angle drag hook and the fixed handle, and the spring screw is embedded at one end of the angle drag hook; two groups of clamping holes which are symmetrically arranged are arranged on the fixed handle, and the clamping holes are matched with the spring screws. When the width of the lip retractor needs to be adjusted, the lip retractor can move to a proper position outside the clamping end or inside the clamping end, and the balls in the spring screws spring up to be clamped into the connecting holes, so that the fixing of the angle drag hook and the clamping end is realized.
Further, the handle end is provided with knurling, and the handle end and the clamping end are connected with upwardly arched connecting ends. The friction force between the lip retractor and the fixing clamp is increased due to the arrangement of the knurling, so that the connection is firmer; the connection end is arched upwards, so that the clamping end and the angle drag hook are conveniently placed into the oral cavity of a patient, and the comfort level of the patient can be improved.
Compared with the prior art, the invention has the beneficial effects that:
The lip retractor for oral digital photography can adjust the distance between the two lip retractors by screwing in or screwing out the screw rod, and has simple structure and convenient operation; the distance between the two lip retractors can be fixed through the action between the screw rod and the connecting rod, so that the dental crowns of the patient can be fully exposed, the photographic process is convenient, one person is not required to hold the two oral cavity retractor to pull the mouth corners at two sides of the oral cavity of the patient backwards, and the other person can carry out the oral cavity photographic process, so that the working efficiency is improved; the mouth angle retractor consists of an inner layer structure made of polystyrene and an outer layer structure supported by polyurethane, so that the oral cavity of a patient can be prevented from being injured by the hook, and the comfort level of the patient is improved; the width of the lip retractor can be conveniently adjusted through the arrangement of the angle drag hook and the spring screw at the clamping end, so that the lip retractor is suitable for the mouth opening degree and the labial muscle tension degree of the oral cavity of patients of different ages, and has strong applicability.
Drawings
Fig. 1 is a schematic view of the lip retractor for oral digital photography according to the present invention.
Fig. 2 is a schematic view showing the structure of the lip retractor for oral digital photography in an open state.
Fig. 3 is a schematic view of the structure of the lip retractor for oral digital photography.
Detailed Description
The invention is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Example 1
As shown in fig. 1 to 3, the lip retractor for oral digital photography of the present invention comprises a lip retractor 1, a fixing rod 2 for fixing the lip retractor 1, and a retractable horizontal plate 3, wherein the fixing rod 2 is fixedly arranged on the horizontal plate 3; the lip retractor 1 comprises an angle retractor 11 and a fixed handle 12, wherein the angle retractor 11 is telescopically connected to two sides of the fixed handle 12, and the fixed handle 12 is vertically connected to the fixed rod 2; the horizontal plate 3 is composed of a middle plate 31 and sliding plates 32 arranged at two ends of the middle plate 31, the fixed rod 2 is fixedly arranged on the sliding plates 32, and the sliding plates 32 are in sliding connection with the middle plate 31.
Specifically, as shown in fig. 2, a plurality of parallel insertion rods 33 are arranged on the sliding plate 32, insertion holes 34 matched with the insertion rods are arranged on the middle plate 31, and limiting pieces for limiting the relative displacement of the insertion rods 33 and the insertion holes 34 are arranged on the insertion holes 34 so as to prevent the sliding plate 32 from sliding off the middle plate 31; the sliding plate 32 is hinged with a connecting rod 5, and one end of the connecting rod 5 is hinged with a fixed block 6; the screw rod 7 is penetrated at the center of the middle plate 31, the fixed block 6 is fixedly connected with the screw rod 7, the distance between the two lip retractors 1 is widened or shortened by screwing in or out the screw rod 7 in the middle plate 31, and the relative position between the middle plate 31 and the sliding plate 32 can be kept unchanged by the action of the screw rod 7 and the connecting rod 5; as shown in fig. 3, a spring screw 13 is disposed between the corner retractor 11 and the fixed handle 12, the spring screw 13 is embedded into one end of the corner retractor 11, two sets of symmetrically arranged clamping holes 14 are disposed on the fixed handle 12, the clamping holes 14 are matched with the spring screw 13, and balls in the spring screw 13 can be sprung up to be clamped into the connecting holes 14, so that the corner retractor 11 and the clamping end 14 are fixed.
In addition, as shown in fig. 1, an elastically telescopic fixing clip 4 is arranged at the joint of the fixing rod 2 and the fixing handle 12, the fixing clip 4 comprises two fixing package pieces 41 with the same structure, and the two fixing package pieces 41 are connected by an elastically telescopic elastic piece, so that the fixing handle 12 and the fixing rod 2 are conveniently connected; as shown in fig. 3, the corner retractor 11 is symmetrically arranged at two sides of the fixed handle 12, the fixed handle 12 has a Y-shaped structure made of polystyrene, and comprises a handle end 121 and a clamping end 122 matched with the corner retractor 11, the corner retractor 11 has an arc-shaped structure, and is composed of an inner layer structure made of polystyrene and an outer layer structure supported by polyurethane, so that the lip and cheek of a patient can be prevented from being scratched, and the comfort level of the patient is improved; the handle end 121 is provided with knurling, and the handle end 121 and the clamping end 122 are connected with an upwardly arched connecting end 123, so that the angle drag hook 11 is conveniently placed in the oral cavity of a patient, and the connection reliability between the lip retractor 1 and the fixed rod 2 is improved.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.