Universal adjustable palate fornix impression tray for opening and closing windows

Abstract

The utility model discloses a universal opening and closing window adjustable palate fornix impression tray which comprises a tray body provided with a handle and a dentition groove, a plurality of impression plates corresponding to teeth in number are detachably connected to the lower portion in the dentition groove, impression rod holes penetrating through the dentition groove are formed below the impression plates, a palate fornix plate is hinged to the tray body, and the palate fornix plate is hinged to the tray body. A fixing plate fixedly connected with the tray body is arranged below the palatal vault plate, the fixing plate is in threaded connection with an adjusting screw rod, the adjusting screw rod upwards penetrates through the fixing plate and is rotationally connected with a lifting plate for jacking the palatal vault plate, and the lifting plate is fixedly connected with a guide rod in sliding connection with the fixing plate. According to the utility model, the opening and closing windows of the tray body are universal and can be repeatedly used, the resource waste is reduced, the height of the palate dome plate can be adjusted according to the palate dome heights of different crowds, the clinical complex operation is reduced, and the accurate impression on the oral cavity of a patient is ensured.

Description

Technical Field

[0001] This utility model relates to the field of impression tray technology, and in particular to an impression tray with a universally adjustable palatal dome for opening and closing windows. Background Technology

[0002] In the process of dental implant restoration, taking impressions is an essential step. Due to the different impression rods used, there are currently two corresponding impression methods and two types of impression trays in clinical practice: fenestration and closed-fenestration. The fenestration impression tray is made by grinding a fenestration hole into the tray according to the corresponding position of the impression rod. The location of the fenestration hole varies depending on the individual patient's oral structure. Therefore, trays used for fenestration impressions are mostly disposable. During use, the fenestration area is pre-cut on the tray according to the position of the implant, ensuring the fenestration area corresponds to the implant.

[0003] However, existing fenestration trays require on-site grinding when creating the fenestration area, wasting both materials and time. Furthermore, once the fenestration is done, the tray can only be used by the current patient and cannot be reused, resulting in resource waste. Moreover, palatal vault height varies among different populations, ranging from high-arched to medium-arched. Existing impression trays are all designed for the flat or medium-arched type, and cannot be adjusted to accommodate different palatal vault heights. To obtain a precise impression, additional intraoral valerate padding is required for high-arched cases to compress the palatal impression material and accurately capture the palatal shape. This increases the complexity of clinical procedures and hinders precise oral impression taking. Utility Model Content

[0004] To address the technical problems of existing technologies, such as the inability to reuse impression trays after grinding and opening windows, resulting in resource waste, and the inability to adjust impression trays according to different palatal vault heights, which increases the complexity of clinical operations and is not conducive to accurate impression taking of patients' oral cavity, this utility model provides the following technical solution.

[0005] This utility model discloses a universal palatal dome adjustable impression tray with openable and closed windows. It includes a tray body with a handle and a dental arch groove. Several impression templates corresponding to the number of teeth are detachably connected to the lower part of the dental arch groove. An impression rod hole penetrating the dental arch groove is provided below each impression template. A palatal dome plate is hinged to the tray body. A fixing plate fixedly connected to the tray body is located below the palatal dome plate. An adjusting screw is threaded onto the fixing plate. The adjusting screw passes upward through the fixing plate and is rotatably connected to a lifting plate that lifts the palatal dome plate. A guide rod slidably connected to the fixing plate is fixedly connected to the lifting plate.

[0006] As a further technical solution, the printing template is detachably connected to the tooth groove via a snap fastener.

[0007] As a further technical solution, the fastener includes a fastening strip with a fastening groove that is fixedly connected to the tooth groove, and the lower end of the printing template is provided with a snap-in protrusion that matches the fastening groove.

[0008] As a further technical solution, a filling block that abuts against the palatal dome plate is fixedly connected to the upper part of the lifting plate.

[0009] As a further technical solution, the palatal dome plate includes a first plate, a second plate, and a third plate that are hinged to the tray body, and the filling block is located below the junction of the first plate, the second plate, and the third plate.

[0010] As a further technical solution, the filling block is made of a flexible material.

[0011] The beneficial effects of this utility model are as follows: The lower part of the dentition groove of the tray body is provided with multiple impression templates corresponding to the number of teeth. Below each impression template is an impression rod hole penetrating the dentition groove, with each impression template corresponding to one impression rod hole. The impression templates and dentition grooves are detachably connected. When all impression templates are within the dentition grooves, it can be used as a conventional closed-window impression tray. After the impression templates are disassembled, it can be used as an open-window impression tray, achieving versatility for both opening and closing windows, allowing for reuse and reducing resource waste. The palatal dome plate is hinged to the tray body. Driven by an adjusting screw, the lifting plate and filling plate lift the palatal dome plate, allowing the height of the palatal dome plate to be adjusted according to the palatal dome height of different individuals, reducing complex clinical operations and ensuring accurate impressions of the patient's oral cavity. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the universal palatal dome adjustable impression tray with opening and closing window of this utility model;

[0013] Figure 2 This is another perspective schematic diagram of the universal palatal dome adjustable impression tray with openable and closed window of this utility model.

[0014] Figure 3 yes Figure 2 An enlarged exploded view of part A in the middle;

[0015] Figure 4 This is a schematic diagram of the lower part of the tray body of the universal palatal dome adjustable impression tray with openable and closed window of this utility model.

[0016] Figure 5 This is a schematic diagram of the lower part of the palatal dome plate of the universal palatal dome adjustable impression tray with a window for opening and closing.

[0017] In the diagram: 1-Tray body; 101-Handle; 2-Dental groove; 3-Palatal dome plate; 301-First plate; 302-Second plate; 303-Third plate; 4-Impression template; 5-Impression rod hole; 6-Snap fastener; 601-Snapping strip; 602-Snapping groove; 603-Snap-in protrusion; 7-Fixing plate; 8-Adjusting screw; 9-Guide rod; 10-Lifting plate; 11-Filling block. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0019] In the description of this utility model, it should be understood that the terms "upper" and "lower" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] like Figure 1 As shown, this utility model discloses a universal palatal vault adjustable impression tray with open and close window, including a tray body 1 with a handle 101 and a tooth socket 2. By holding the handle 101, the tray body 1 filled with impression material in the tooth socket 2 can be inserted into the patient's oral cavity to take an impression.

[0021] like Figure 2 and Figure 3 As shown, in a preferred embodiment, a plurality of impression templates 4 corresponding to the number of teeth are detachably connected to the lower part of the dental arch 2. Each impression template 4 is individually installed and removed from the dental arch 2, and there is no interference between adjacent impression templates 4. The impression template 4 is detachably connected to the inner wall of the dental arch 2 via a snap fastener 6. An impression rod hole 5 penetrating the dental arch 2 is provided below the impression template 4, and each impression rod hole 5 corresponds to one impression template 4. When the impression template 4 is in the dental arch 3, it can be used as a conventional closed-window impression tray. After the impression template 4 is removed, it can be used as an open-window impression tray, realizing the universality of opening and closing windows for the tray body 1, which is reusable and reduces resource waste.

[0022] Specifically, the fastener 6 includes a fastening strip 601 fixedly connected to the dental arch 2. The fastening strip 601 has a fastening groove 602 along its axial direction. The lower end of the impression template 4 is fixedly connected to a snap-in protrusion 603 that matches the fastening groove 602. Pressing the impression template 4 firmly inserts the snap-in protrusion 603 into the fastening groove 602, thus fixing the impression template 4 to the dental arch 2. Pulling the impression template 4 forcefully disengages the snap-in protrusion 603 from the fastening groove 602, thus separating the impression template 4 from the dental arch 2. After disassembly, the impression rod can be used by passing it through the impression rod hole 5 for closed-window impressions. Of course, the fastener 6 is not limited to the structure shown in the figure; other methods that allow for detachable connection between the impression template 4 and the inner wall of the dental arch 2 can also be used.

[0023] like Figure 4 and Figure 5 As shown, in a preferred embodiment, the palatal dome plate 3 is hinged to the tray body 1. The palatal dome plate 3 includes a first plate 301, a second plate 302, and a third plate 303 that are hinged to the tray body 1. The first plate 301, the second plate 302, and the third plate 303 are respectively hinged to the tray body 1 through existing hinges. The first plate 301, the second plate 302, and the third plate 303 can rotate up and down relative to the tray body 1 to adjust the height of the palatal dome plate 3.

[0024] Below the palatal dome plate 3 is a fixed plate 7 that is fixedly connected to the tray body 1. The fixed plate 7 is threadedly connected to an adjusting screw 8. The adjusting screw 8 and the fixed plate 7 are designed to not excessively compress the tongue. The adjusting screw 8 passes upward through the fixed plate 7 and is rotatably connected to a lifting plate 10. The lifting plate 10 can lift the palatal dome plate 3 when it rises. The lifting plate 10 is fixedly connected to a guide rod 9 that is slidably connected to the fixed plate 7. By turning the adjusting screw 8, the lifting plate 10 can move up and down, thereby lifting or lowering the palatal dome plate 3, thus adjusting the height of the palatal dome plate 3 to suit the palatal dome height of different people.

[0025] In a preferred embodiment, a filling block 11, which abuts against the palatal dome plate 3, is fixedly connected to the upper part of the lifting plate 10. The filling block 11 is made of a flexible material. The filling block 11 is located below the junction of the first plate 301, the second plate 302, and the third plate 303. When the lifting plate 10 rises and lifts the palatal dome plate 3, the first plate 301, the second plate 302, and the third plate 303 move upward and a gap appears between them. The filling block 11 rises with the lifting plate 10 and can fill the gap.

[0026] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, various changes or equivalent substitutions can be made without departing from the concept of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A universal adjustable impression tray for opening and closing windows of the palate, comprising a tray body (1) provided with a handle (101) and a dentition slot (2), characterized in that: The lower part of the tooth groove (2) is detachably connected to several impression templates (4) corresponding to the number of teeth. The impression templates (4) are provided with impression rod holes (5) that penetrate the tooth groove (2) below. The tray body (1) is hinged to a palatal dome plate (3). The palatal dome plate (3) is provided with a fixing plate (7) fixedly connected to the tray body (1) below. The fixing plate (7) is threadedly connected to an adjusting screw (8). The adjusting screw (8) passes upward through the fixing plate (7) and is rotatably connected to a lifting plate (10) that lifts the palatal dome plate (3). The lifting plate (10) is fixedly connected to a guide rod (9) that is slidably connected to the fixing plate (7).

2. The universal palatal vault adjustable impression tray for on-and-off window according to claim 1, wherein: The printing template (4) is detachably connected to the tooth groove (2) via a snap fastener (6).

3. The universal palatal vault adjustable impression tray for on-and-off window according to claim 2, characterized in that: The fastener (6) includes a fastening strip (601) with a fastening groove (602) fixedly connected to the tooth groove (2), and the lower end of the printing template (4) is provided with a snap-in protrusion (603) that matches the fastening groove (602).

4. The universal palatal vault adjustable impression tray for on-and-off window according to claim 1, wherein: The upper part of the lifting plate (10) is fixedly connected to a filling block (11) that abuts against the palatal dome plate (3).

5. The universal palatal vault adjustable impression tray for open-close window according to claim 4, wherein: The palatal dome plate (3) includes a first plate (301), a second plate (302) and a third plate (303) hinged to the tray body (1), and the filling block (11) is located below the junction of the first plate (301), the second plate (302) and the third plate (303).

6. The universal palatal vault adjustable impression tray for open-close window according to claim 4, wherein: The filler block (11) is made of a flexible material.

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