Oral cavity dilator

Abstract

The utility model discloses an oral cavity dilator, and belongs to the field of medical instruments. An oral cavity dilator comprises a lower denture and an upper denture, connecting rods are connected to the two ends of the lower denture and the two ends of the upper denture, adjusting mechanisms are connected to the outer ends of the connecting rods located at the two ends of the upper denture, the connecting rods located at the two ends of the lower denture are fixedly installed at the bottom ends of the adjusting mechanisms, and sleeves are rotationally installed at the ends, connected with the lower denture and the upper denture, of the connecting rods. Second screws are installed at the corresponding positions of the lower denture and the upper denture, a rotating shaft is installed at the end, connected with the connecting rod, of the connecting rod, a sleeve is rotationally connected with the connecting rod through the rotating shaft, and the sleeve is in threaded connection with the second screws. The denture is connected with the adjusting mechanism through the connecting rod, so that the adjusting mechanism is prevented from shielding the operation view of the oral cavity part, and the examination and treatment efficiency of the oral cavity is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an oral retractor. Background Technology

[0002] An oral retractor is an instrument used to open the mouth during medical procedures, typically in emergency situations, surgery, or dental treatments. By separating the patient's upper and lower teeth, the oral retractor keeps the mouth in a stable open position, providing the doctor with a clear field of vision. This is especially important for medical procedures that require prolonged manipulation, as it reduces patient fatigue caused by prolonged mouth opening.

[0003] A search revealed Chinese patent application number 202320519598.X, which discloses an oral retractor. The retractor includes a support body with arc-shaped ends and a through groove. Auxiliary grooves communicating with the through grooves are formed on both the upper and lower surfaces of the support body. An upper dental tray and a lower dental tray are slidably connected within the auxiliary grooves. Tooth grooves are formed on the opposite sides of the upper and lower dental trays. An adjustment mechanism is provided on the support body. This oral retractor, by increasing the angle of the pull rod, allows the upper and lower dental trays to move opposite each other, thus adjusting the size of the oral cavity opening. This facilitates treatment and observation of the oral cavity by medical staff. Furthermore, the restriction of the upper and lower dental trays prevents the patient's mouth from closing during treatment, ensuring safety and allowing medical staff to perform normal oral care.

[0004] Although the aforementioned patent can separate the patient's upper and lower teeth, its supporting body is also located in the patient's oral cavity. When supporting the patient's upper and lower teeth, the supporting body will also obstruct the operating field of the patient's oral cavity, which can easily affect the efficiency of diagnosis and treatment of the patient's oral cavity. At the same time, its upper and lower dental trays are inconvenient to clean and are prone to bacterial growth.

[0005] Therefore, oral retractors are urgently needed to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to solve the problems of obstructing the operating field of vision and the inconvenience of disassembly and cleaning caused by the support body in the prior art, and to propose an oral cavity opener.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An oral retractor includes a lower dental tray and an upper dental tray. Both ends of the lower and upper dental trays are connected to connecting rods. The outer ends of the connecting rods at both ends of the upper dental tray are connected to an adjustment mechanism. The connecting rods at both ends of the lower dental tray are fixedly installed at the bottom ends of the adjustment mechanism. A sleeve is rotatably mounted on the end of each connecting rod that connects to the lower and upper dental trays. Second screws are installed at corresponding positions on the lower and upper dental trays. A rotating shaft is mounted on the end of each connecting rod that connects to the connecting rod. The sleeve is rotatably connected to the connecting rod via the rotating shaft, and the sleeve is threadedly connected to the second screw.

[0009] As a preferred technical solution of this application, the lower dental tray and the upper dental tray are provided with a support seat on the side facing the teeth, and a soft pad is sleeved on the support seat.

[0010] As a preferred technical solution of this application, the cross-section of the support base is T-shaped.

[0011] As a preferred technical solution of this application, both the lower dental tray and the upper dental tray are equipped with card holders at both ends of the support base.

[0012] As a preferred technical solution of this application, the top of the card holder is provided with a placement groove, which is an arc-shaped groove.

[0013] As a preferred technical solution of this application, the back of the adjustment mechanism located on both sides is provided with an elastic strap.

[0014] As a preferred technical solution of this application, the adjustment mechanism includes a frame, and a first screw is provided inside the frame, with a handle installed on the top of the first screw.

[0015] As a preferred technical solution of this application, a slider is provided on one end of the connecting rod connected to the upper dental tray and the adjusting mechanism, which is mounted on the first screw. A sleeve is installed at the bottom of the frame, and the sleeve is used to connect with the connecting rod located on the lower dental tray.

[0016] As a preferred technical solution of this application, the bottom end of the sleeve is provided with a threaded portion, and a fixing nut is threadedly connected to the threaded portion.

[0017] Compared with the prior art, the present invention provides an oral retractor with the following advantages:

[0018] 1. This oral retractor, through the setting of a connecting rod, connects the dental tray to the adjustment mechanism, preventing the adjustment mechanism from obstructing the operating field of the oral cavity, effectively improving the efficiency of oral examination and treatment, and solving the problem in the prior art that the operating field of the oral cavity is easily obstructed when the patient's oral cavity is retracted;

[0019] 2. This oral retractor, by setting a sleeve on the end of the connecting rod that connects to the dental tray, achieves connection with the second screw on the dental tray through the sleeve, which facilitates installation and disassembly. It solves the problem in the prior art that it is inconvenient to disassemble the dental tray, which leads to inconvenience in cleaning and maintenance of the dental tray and a reduction in service life.

[0020] 3. This oral retractor, through the bracket set on the dental tray, achieves contact between the bracket and the patient's teeth during support, and the teeth are held in place by the placement slot on the bracket, which improves the stability during use and solves the problem of the dental tray easily falling off when in contact with the teeth in the existing technology. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the upper dental tray structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the soft pad installation structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the adjustment mechanism structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the connecting rod and sleeve connection structure of this utility model.

[0026] In the picture:

[0027] 1. Lower tooth holder; 2. Connecting rod; 3. Adjustment mechanism; 301. Frame; 302. Sleeve rod; 303. First screw; 304. Handle; 4. Elastic strap; 5. Soft pad; 6. Card seat; 7. Upper tooth holder; 8. Slider; 9. Second screw; 10. Support seat; 11. Rotating shaft; 12. Sleeve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] Example 1:

[0030] Reference Figures 1-5An oral cavity retractor includes a lower dental tray 1 and an upper dental tray 7. Both ends of the lower dental tray 1 and the upper dental tray 7 are connected to connecting rods 2. The outer ends of the connecting rods 2 at both ends of the upper dental tray 7 are connected to adjustment mechanisms 3. The connecting rods 2 at both ends of the lower dental tray 1 are fixedly installed at the bottom of the adjustment mechanism 3. The distance between the upper dental tray 7 and the lower dental tray 1 can be adjusted by the adjustment mechanism 3, which facilitates opening the patient's oral cavity during use. At the same time, by setting the connecting rods 2, the obstruction of the patient's oral cavity by the adjustment mechanism can be effectively reduced, making it more convenient to perform oral examinations or treatments. The back of the adjustment mechanism 3 located on both sides is provided with elastic straps 4, which can improve the stability of the device during installation and prevent it from falling off.

[0031] Reference Figure 2 and Figure 3 Furthermore, the lower dental tray 1 and the upper dental tray 7 are provided with a support seat 10 on the tooth-facing side. The cross-section of the support seat 10 is T-shaped, and a soft pad 5 is fitted on the support seat 10. The soft pad 5 is a silicone pad or a rubber pad, which can protect the teeth and the lower dental tray 1 and the upper dental tray 7 that come into contact with the teeth during use, thereby increasing the service life of the lower dental tray 1 and the upper dental tray 7. It also makes it easier to replace the soft pad 5, making it more hygienic. At both ends of the support seat 10, there are retainers 6 installed on the lower dental tray 1 and the upper dental tray 7. The top of the retainer 6 has a placement groove. The placement groove is an arc-shaped groove, which can be combined with the upper or lower teeth during use, improving the stability when opened and effectively preventing it from falling off.

[0032] Reference Figure 1 and Figure 4 Furthermore, the adjustment mechanism 3 includes a frame 301, inside which is provided a first screw 303. A handle 304 is installed on the top of the first screw 303. By rotating the first screw 303 through the handle 304, a slider 8 is installed on the first screw 303 at one end of the connecting rod 2 connected to the upper tooth bracket 7 and connected to the adjustment mechanism 3. A sleeve 302 is installed at the bottom of the frame 301. The sleeve 302 is used to connect to the connecting rod 2 located on the lower tooth bracket 1, and the bottom end of the sleeve 302 is provided with a threaded part. A fixing nut is threaded onto the threaded part. After connecting the slider 8 on the connecting rod 2 to the sleeve 302, it is fixed by the nut. In addition, the diameter of the sleeve 302 is smaller than the inner diameter of the slider 8, which makes installation more convenient and quick, and also facilitates disassembly for better handling of parts.

[0033] Reference Figure 4 and Figure 5Furthermore, a sleeve 12 is rotatably installed on the end of the connecting rod 2 that connects to the lower dental tray 1 and the upper dental tray 7. A second screw 9 is installed at the corresponding position on the lower dental tray 1 and the upper dental tray 7. A rotating shaft 11 is installed on the end of the connecting rod 2 that connects to the connecting rod 2. The sleeve 12 is rotatably connected to the connecting rod 2 through the rotating shaft 11. The sleeve 12 is threadedly connected to the second screw 9. During installation, the connecting rod 2 is fixed to the dental tray by rotating the sleeve 12, which makes it easier to disassemble the dental tray and make daily maintenance and disinfection more convenient, effectively improving the service life of the dental tray.

[0034] Specifically, when this oral retractor is in operation / use: the device is placed in the patient's mouth, and then the distance between the upper dental tray 7 and the lower dental tray 1 is adjusted by the adjustment mechanism 3. The soft pad 5 contacts the patient's teeth, and at the same time, it maintains a gentle connection between the teeth and the bracket 6 when retracting, improving stability. Then, the distance between the upper dental tray 7 and the lower dental tray 1 is adjusted to a suitable size, i.e., the size of the patient's mouth that needs to be opened, by adjusting the adjustment mechanism 3. During use, the elastic strap 4 can also be placed on the patient's head to restrict the adjustment mechanism 3 and the dental tray.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An oral retractor, comprising a lower dental tray (1) and an upper dental tray (7), characterized in that, Both ends of the lower dental tray (1) and the upper dental tray (7) are connected to connecting rods (2). The outer ends of the connecting rods (2) located at both ends of the upper dental tray (7) are connected to an adjustment mechanism (3). The connecting rods (2) at both ends of the lower dental tray (1) are fixedly installed at the bottom end of the adjustment mechanism (3). A sleeve (12) is rotatably installed on the end of the connecting rod (2) that is connected to the lower dental tray (1) and the upper dental tray (7). A second screw (9) is installed at the corresponding position on the lower dental tray (1) and the upper dental tray (7). A rotating shaft (11) is installed on the end of the connecting rod (2) that is connected to the connecting rod (2). The sleeve (12) is rotatably connected to the connecting rod (2) through the rotating shaft (11). The sleeve (12) is threadedly connected to the second screw (9).

2. The oral retractor according to claim 1, characterized in that, The lower dental tray (1) and the upper dental tray (7) are provided with a support seat (10) on the side facing the teeth, and a soft pad (5) is fitted on the support seat (10).

3. The oral retractor according to claim 2, characterized in that, The cross-section of the support base (10) is T-shaped.

4. The oral retractor according to claim 2, characterized in that, Both the lower dental tray (1) and the upper dental tray (7) are equipped with card holders (6) at both ends of the support base (10).

5. The oral retractor according to claim 4, characterized in that, The top of the card holder (6) is provided with a placement groove, which is an arc-shaped groove.

6. The oral retractor according to claim 1, characterized in that, Elastic straps (4) are provided on the back of the adjustment mechanisms (3) located on both sides.

7. The oral retractor according to claim 1, characterized in that, The adjustment mechanism (3) includes a frame (301), inside which a first screw (303) is provided, and a handle (304) is installed on the top of the first screw (303).

8. An oral retractor according to claim 7, characterized in that, A slider (8) is provided on the connecting rod (2) connected to the upper dental tray (7) and the end connected to the adjusting mechanism (3). A sleeve rod (302) is installed at the bottom of the frame (301). The sleeve rod (302) is used to connect with the connecting rod (2) located on the lower dental tray (1).

9. An oral retractor according to claim 8, characterized in that, The bottom end of the sleeve (302) is provided with a threaded part, and a fixing nut is threadedly connected to the threaded part.

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