An oral expander

Abstract

The utility model relates to oral medical technology field, and the application discloses a kind of oral cavity dilator, including control block, control block inside rotation is connected with control runner, the both sides of control runner are fixed with screw rod, the screw rod of control runner both ends is opposite in thread direction, every the one end of screw rod away from control block is rotationally connected with baffle, the utility model is set up control runner by being arranged in control block, and screw rod opposite in thread is set up in control runner both ends, and two sliding plates are connected with the screw rod thread of two sides, so that staff can be adjusted by rotating control runner, so that the distance between two sliding plates is adjustable, so that the distance between dilator main body is adjustable, solve the most of the dilator of existing fixed structure, cannot be adaptively adjusted according to the size of patient's oral cavity and operation demand, this both increase the difficulty of doctor's operation, also possibly cause unnecessary harm to patient's problem.

Description

Technical Field

[0001] This utility model application relates to the field of oral medicine technology, specifically to an oral retractor. Background Technology

[0002] The oral cavity is the beginning of the digestive tract. It connects to the outside through the mouth fissure anteriorly and continues to the pharynx posteriorly via the pharyngeal isthmus. The oral cavity contains organs such as teeth and tongue. The anterior wall is the lip, the lateral walls are the cheeks, the roof is the palate, and the floor consists of mucosa and muscle structures. The oral cavity is divided into the oral vestibule (anterolateral part) and the oral cavity proper (posterior medial part) by the upper and lower dental arches. When the upper and lower teeth are occlusal, the oral vestibule and the oral cavity proper communicate through the space behind the third molar. Clinically, when a patient has trismus, this passage can be used to insert an oral gag or intubation tube to administer medication or nutrients, while simultaneously preventing tongue biting.

[0003] In oral and maxillofacial surgery, retractors are commonly used auxiliary tools. However, most existing retractors have a fixed structure and cannot be adaptively adjusted according to the size of the patient's mouth and the needs of the surgery. This increases the difficulty of operation for doctors and may cause unnecessary harm to patients. Therefore, developing an adaptively adjustable oral retractor is of great practical significance. Summary of the Invention

[0004] To address the problem that most existing oral retractors use a fixed structure and cannot adaptively adjust to the size of the patient's mouth and the needs of the surgery, which increases the difficulty of operation for doctors and may cause unnecessary harm to patients, this invention provides an oral retractor to solve the above problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An oral retractor includes a control block, a control wheel rotatably connected inside the control block, screws fixed on both sides of the control wheel with opposite thread directions at both ends, a baffle rotatably connected to the end of each screw away from the control block, a fixing rod fixed between each baffle and the control block, a sliding plate threaded onto each screw, the sliding plate slidably connected to the fixing rod, a rotating plate rotatably connected to the end of the sliding plate away from the control block, an outer ring fixed to the end of the rotating plate away from the sliding plate, an inner ring slidably fitted inside the outer ring, and a retractor body fixed to the end of the inner ring away from the control block.

[0007] Furthermore, a partition is fixed inside the inner collar, a sleeve rod is fixed on the partition, a limit block is provided above the sleeve rod, the limit block is slidably connected to the top surface of the inner collar, and a spring is sleeved on the sleeve rod.

[0008] Furthermore, the control block has rotating grooves on both sides that match the shape of the screws, and the two screws are rotatably connected to both sides of the control block.

[0009] Furthermore, the control wheel extends beyond the top and bottom surfaces of the control block, and the outer surface of the control wheel is provided with anti-slip stripes.

[0010] Furthermore, both the outer and inner rings have openings on their top surfaces that match the shape of the limiting block, and the limiting block has a sliding groove inside that matches the shape of the sleeve rod.

[0011] Furthermore, the top surface of the spring is fixedly connected to the bottom surface of the limiting block, and the bottom surface of the spring is fixedly connected to the top surface of the partition plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, a control wheel is set inside the control block, and screws with opposite patterns are set at both ends of the control wheel. Two sliding plates are threadedly connected to the screws on both sides, so that the distance between the two sliding plates can be adjusted by rotating the control wheel. This makes the distance between the main bodies of the retractor adjustable, which solves the problem that most existing retractors adopt a fixed structure and cannot be adaptively adjusted according to the size of the patient's mouth and the needs of the surgery. This increases the difficulty of operation for doctors and may cause unnecessary harm to patients.

[0014] 2. In this utility model, the main body of the spreader is fixed to one end of the inner ring, and the inner ring is detachably fixed inside the outer ring by a limiting block. At the same time, the sliding plate and the rotating plate are rotatably connected, so that the operator can control the position of the sliding plate by rotating the sliding plate, thus avoiding the sliding plate from obstructing the operator's working environment. The detachable design between the outer ring and the inner ring also makes it convenient for the operator to replace the main body of the spreader, thereby reducing the cost of using the tool and avoiding the problem of tool wear and tear caused by the non-reusability of the main body of the spreader. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural schematic diagram according to an embodiment of the present application;

[0017] Figure 2 yes Figure 1 The above-view three-dimensional structural diagram is shown in the embodiment.

[0018] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the sleeve structure in the embodiment shown;

[0019] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the limiting structure in the embodiment shown.

[0020] The meanings of the reference numerals in the figure are as follows: 1. Control block; 2. Control wheel; 3. Screw; 4. Baffle; 5. Fixed rod; 6. Sliding plate; 7. Rotating plate; 8. Outer ring; 9. Inner ring; 10. Spreader body; 11. Partition; 12. Sleeve rod; 13. Spring; 14. Limiting block; 15. Slide groove. Detailed Implementation

[0021] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 An oral retractor includes a control block 1, a control wheel 2 rotatably connected inside the control block 1, screws 3 fixed on both sides of the control wheel 2, the screws 3 at both ends of the control wheel 2 having opposite thread directions, a baffle 4 rotatably connected to the end of each screw 3 away from the control block 1, a fixing rod 5 fixed between each baffle 4 and the control block 1, a sliding plate 6 threadedly connected to each screw 3, the sliding plate 6 being slidably connected to the fixing rod 5, a rotating plate 7 rotatably connected to the end of the sliding plate 6 away from the control block 1, an outer ring 8 fixed to the end of the rotating plate 7 away from the sliding plate 6, an inner ring 9 slidably sleeved inside the outer ring 8, and a retractor body 10 fixed to the end of the inner ring 9 away from the control block 1, so that the distance between the retractor bodies 10 is adjustable.

[0023] Specifically, the control block 1 has rotating grooves on both sides that match the shape of the screw 3. The two screws 3 are rotatably connected to both sides of the control block 1. The control wheel 2 extends out of the top and bottom surfaces of the control block 1. The outer side of the control wheel 2 is provided with anti-slip stripes to facilitate the control wheel 2 in controlling the rotation of the screw 3.

[0024] As an optimization solution, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a partition 11 is fixed inside the inner collar 9, and a sleeve rod 12 is fixed on the partition 11. A limit block 14 is provided above the sleeve rod 12. The limit block 14 is slidably connected to the top surface of the inner collar 9. A spring 13 is sleeved on the sleeve rod 12, so that the inner collar 9 can be detached.

[0025] Specifically, both the outer ring 8 and the inner ring 9 have openings on their top surfaces that match the shape of the limiting block 14. The limiting block 14 has a sliding groove 15 inside that matches the shape of the sleeve rod 12. The top surface of the spring 13 is fixedly connected to the bottom surface of the limiting block 14, and the bottom surface of the spring 13 is fixedly connected to the top surface of the partition 11, so that the limiting block 14 limits and fixes the outer ring 8.

[0026] Working principle: The main body 10 of the spreader is placed in the patient's mouth. Based on the desired distance between the main bodies 10, the control wheel 2 is rotated, causing the screws 3 on both sides to rotate simultaneously. As the screws 3 rotate, the sliding plates 6 on both sides move simultaneously, sliding on the fixed rod 5. Simultaneously, the sliding plates 6 move, causing the rotating plate 7 to move. The rotating plate 7 then moves the outer ring 8, which in turn moves the inner ring 9, causing the inner ring 9 to move the main body 10 to both sides. Once the main body 10 has reached the desired position, the control wheel 2 is stopped. At this point, the sliding plates 6 are rotated, causing... One end of the sliding plate 6 rotates on the rotating plate 7, allowing the two sliding plates 6 to move and thus avoid obstructing the subsequent operation of the staff. After the operation is completed, the control wheel 2 is rotated in the opposite direction, causing the control wheel 2 to drive the screw 3 to retract the main body 10 of the spreader. After the main body 10 of the spreader is retracted, it is taken out of the mouth. At this time, by pressing the limiting block 14, the limiting block 14 moves downward. At this time, the sleeve rod 12 slides inside the slide groove 15, and the spring 13 is compressed and stored, so that the limiting block 14 releases the limitation on the outer ring 8. The staff can then pull out the inner ring 9 to remove and replace it.

[0027] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An oral retractor, comprising a control block (1), characterized in that: The control block (1) is rotatably connected to a control wheel (2). Both sides of the control wheel (2) are fixed with screws (3). The screws (3) at both ends of the control wheel (2) have opposite thread directions. A baffle (4) is rotatably connected to the end of each screw (3) away from the control block (1). A fixing rod (5) is fixed between each baffle (4) and the control block (1). A sliding plate (6) is threaded onto each screw (3). The sliding plate (6) is slidably connected to the fixing rod (5). A rotating plate (7) is rotatably connected to the end of the sliding plate (6) away from the control block (1). 7) An outer ring (8) is fixed at one end away from the sliding plate (6). An inner ring (9) is slidably fitted inside the outer ring (8). A spreader body (10) is fixed at one end of the inner ring (9) away from the control block (1). A partition (11) is fixed inside the inner ring (9). A sleeve rod (12) is fixed on the partition (11). A limit block (14) is provided above the sleeve rod (12). The limit block (14) is slidably connected to the top surface of the inner ring (9). A spring (13) is fitted on the sleeve rod (12). Openings matching the shape of the limit block (14) are provided on the top surfaces of both the outer ring (8) and the inner ring (9). A sliding groove (15) matching the shape of the sleeve rod (12) is provided inside the limit block (14). The top surface of the spring (13) is fixedly connected to the bottom surface of the limit block (14). The bottom surface of the spring (13) is fixedly connected to the top surface of the partition (11).

2. The oral cavity retractor according to claim 1, characterized in that: The control block (1) has rotating grooves on both sides that match the shape of the screw (3), and the two screws (3) are rotatably connected to both sides of the control block (1).

3. The oral retractor according to claim 1, characterized in that: The control wheel (2) extends out of the top and bottom surfaces of the control block (1), and the outer surface of the control wheel (2) is provided with anti-slip stripes.

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