Mouth retractor

Abstract

The utility model relates to ear nose throat mouth part prop open technical field, and disclose a mouth part prop open device, including the outer frame, the one side sliding of outer frame is inserted and is equipped with the moving column, wherein a group the outer surface of center column is located in the outer frame inside fixed cover and is equipped with the first gear, the one end of center column extends to the outer frame outside fixed with the square frame, the middle slide of square frame is inserted and is equipped with the connecting rod, the top end one side of square bar is fixed with the dilatation plug, the utility model discloses through the cooperation use between outer frame, pull bolt, moving column, limit slot, first gear, second gear, square bar, dilatation plug and first spring, make two groups of dilatation plug's dilatation range controllable, and the specific situation of convenient adjustment according to patient, through the cooperation use between outer frame, square bar, center column, square frame, second spring, clamping block and connecting rod, conveniently replace the dilatation plug of wear or damage, reduce the use cost.

Description

Technical Field

[0001] This utility model relates to the field of ear, nose, throat and mouth opening technology; more specifically to a mouth opening device. Background Technology

[0002] Otolaryngology, formerly known as "Five Ophthalmology Department," is a medical science that specializes in the study of diseases of the ear, nose, pharynx, larynx, and related head and neck regions. This discipline encompasses vital sensory organs and respiratory pathways, including the ear responsible for hearing, the nose for smell, the larynx connecting the mouth and trachea, and the pharynx serving as a passageway between the nasal cavity and throat. The normal function of these organs is crucial for human life and health. In otolaryngology, mouth retractors are frequently used to open the patient's mouth for easier observation and manipulation by doctors.

[0003] Existing mouth opening devices are not convenient to adjust the opening diameter according to each patient's specific situation, which can easily cause patients to experience strong discomfort. In addition, most existing mouth opening devices are one-piece, and the part inserted into the patient's mouth is not easy to disassemble, resulting in high replacement costs. Moreover, when there are many patients, the disinfection waiting time is too long, which wastes the time of both patients and doctors. Therefore, there is an urgent need for a mouth opening device to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a mouth opening device to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a mouth opening device, comprising:

[0006] The outer frame has a first spring fixed on one side of its front side, a pull bolt slidably inserted through the front side of the outer frame, one end of the pull bolt being slidably inserted in the middle of the first spring, and the other end of the pull bolt being fixedly connected to the other end of the first spring. A movable column is slidably inserted through one side of the outer frame, and a limit groove is formed on one side of the movable column. Both ends of the upper end of the outer frame are rotatably inserted with central columns. One set of central columns has a first gear fixedly sleeved on its outer surface inside the outer frame, and the other set of central columns has a second gear fixedly sleeved on its outer surface inside the outer frame.

[0007] One end of the central column extends to the outside of the outer frame and is fixed with a square frame. The inner walls of the square frame are fixed with two second springs. One end of the second spring is fixed with a locking block. A connecting rod is slidably inserted in the middle of the square frame. One end of the connecting rod is fixed with a square rod. An expansion plug is fixed to one side of the top of the square rod.

[0008] Preferably, multiple sets of limiting grooves are provided, and the multiple sets of limiting grooves are equally distributed on one side of the moving column in a linear array. One end of the pull bolt passes through the outer frame and is slidably inserted into the limiting groove, which facilitates fixing the position of the moving column.

[0009] Preferably, the top surface of the movable column has a toothed groove that meshes with the first gear, and there is a significant gap between the movable column and the second gear. The first gear and the second gear mesh with each other, which facilitates the rotation of the first gear and the second gear when the movable column is pushed.

[0010] Preferably, the square rod and the dilator are provided in two symmetrically distributed sets, and the surfaces of the square rod and the dilator in both sets are covered with soft silicone pads to facilitate opening the patient's mouth while reducing harm to the patient.

[0011] Preferably, the locking blocks are provided in four sets, with each pair of locking blocks symmetrically distributed on both sides of the inner side of each set of squares. The locking blocks slide inside the squares, and both sides of the locking blocks are set as inclined surfaces. The inclination of the inclined surface on the side of the locking block away from the central column is greater than the inclination of the inclined surface on the side closer to the central column, which facilitates quick assembly and disassembly of the square rod. Disassembly of the square rod from the square frame requires more force than installation.

[0012] Preferably, the connecting rod has slots on both sides that are adapted to the locking block, and one end of the locking block is slidably inserted into the slot, so that the two are tightly attached without gaps, which facilitates the fixing of the square rod and the square frame.

[0013] The technical effects and advantages of this utility model are as follows: This utility model uses the outer frame, pull bolt, moving column, limiting groove, first gear, second gear, square rod, expansion plug and first spring in cooperation to make the expansion range of the two sets of expansion plugs controllable, which can be easily adjusted according to the specific situation of the patient, improve the effectiveness and comfort of the opening effect, reduce oral discomfort or pain caused by excessive opening, reduce the patient's tension and fear, and help the patient cooperate better with the treatment.

[0014] The outer frame, square rod, central column, square frame, second spring, locking block and connecting rod work together to easily replace worn or damaged expansion plugs without replacing the entire device. This helps to extend the overall service life of the device and reduce the cost of use. When there are many patients, doctors can quickly replace the old expansion plugs with spare ones, while the old expansion plugs are sent for disinfection and cleaning, reducing the waiting time for doctors and patients. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional structural diagram of the present invention.

[0016] Figure 2This is a partial cross-sectional three-dimensional structural diagram of the present invention.

[0017] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the present invention.

[0018] Figure 4 This is a partial cross-sectional top view of the three-dimensional structure of this utility model.

[0019] The attached diagram is labeled as follows: 1. Outer frame; 2. Bolt; 3. Moving column; 4. Limiting groove; 5. First gear; 6. Second gear; 7. Square rod; 8. Expansion plug; 9. Central column; 10. First spring; 11. Square frame; 12. Second spring; 13. Locking block; 14. Connecting rod. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The instrument placement rack involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1

[0022] like Figures 1 to 3 As shown, this embodiment proposes a mouth opening device, including an outer frame 1. A first spring 10 is fixed on one side of the front of the outer frame 1. A pull bolt 2 is slidably inserted through one side of the front of the outer frame 1, and one end of the pull bolt 2 is slidably inserted in the middle of the first spring 10. The other end of the pull bolt 2 is fixedly connected to the other end of the first spring 10. A movable column 3 is slidably inserted through one side of the outer frame 1, and a limiting groove 4 is opened on one side of the movable column 3. A central column 9 is rotatably inserted at both ends of the upper end of the outer frame 1. A first gear 5 is fixedly sleeved on the outer surface of one set of central columns 9 inside the outer frame 1, and a second gear 6 is fixedly sleeved on the outer surface of another set of central columns 9 inside the outer frame 1. Multiple sets of limiting grooves 4 are opened, and the multiple sets of limiting grooves 4 are equidistantly distributed on one side of the movable column 3 in a linear array. One end of the pull bolt 2 passes through the outer frame 1 and is slidably inserted into the limiting groove 4. A tooth groove that meshes with the first gear 5 is opened on the top surface of the movable column 3. There is a clear gap between the movable column 3 and the second gear 6. The first gear 5 and the second gear 6 mesh with each other.

[0023] In this embodiment, when expanding the two sets of expansion plugs 8, the pull bolt 2 can be pulled first to stretch the first spring 10. After one end of the pull bolt 2 is completely pulled out from the inside of one set of limiting grooves 4, the moving column 3 is pulled to the right, away from the first gear 5, so that the first gear 5 meshes and rotates counterclockwise. The first gear 5 then drives the second gear 6 to mesh and rotate clockwise. The first gear 5 and the second gear 6 drive the two sets of central columns 9 to rotate simultaneously and in opposite directions. The two sets of central columns 9 drive the two sets of square frames 11, connecting rods 14, square rods 7 and expansion plugs 8 to rotate simultaneously. Finally, the two sets of expansion plugs 8 rotate in opposite directions in an expanding manner. After expanding to the appropriate position, the moving column 3 is stopped, the pull bolt 2 is released, and under the rebound of the first spring 10, one end of the pull bolt 2 is inserted into the corresponding set of limiting grooves 4, so that the position of the moving column 3 is fixed, and the expansion plug 8 will no longer rotate easily.

[0024] Example 2

[0025] like Figure 1 and Figure 4 As shown, based on the same concept as the above embodiment, this embodiment also proposes: one end of the central column 9 extends to the outside of the outer frame 1 and is fixed with a square frame 11, and the two ends of the inner wall of the square frame 11 are fixed with a second spring 12, one end of the second spring 12 is fixed with a locking block 13, a connecting rod 14 is slidably inserted in the middle of the square frame 11, and one end of the connecting rod 14 is fixed with a square rod 7, and one side of the top of the square rod 7 is fixed with an expansion plug 8. Two sets of square rods 7 and expansion plugs 8 are symmetrically distributed. The surface of 8 is covered with soft silicone pads. There are four sets of card blocks 13. Two sets of card blocks 13 are symmetrically distributed on both sides of the inside of each set of squares 11. The card blocks 13 slide inside the squares 11. Both sides of the card blocks 13 are set as inclined surfaces. The inclination of the inclined surface of the card block 13 away from the central column 9 is greater than the inclination of the inclined surface of the card block 13 closer to the central column 9. The connecting rod 14 has slots on both sides that are adapted to the card blocks 13. One end of the card block 13 is slidably inserted into the slot. The two are tightly attached without gaps.

[0026] In this embodiment, when the expansion plug 8 needs to be replaced, the square rod 7 can be pulled away from the outer frame 1, causing the connecting rod 14 to be pulled out from the square frame 11. During this process, the locking block 13 will be squeezed by the connecting rod 14 and retract into the square frame 11. The locking block 13 will also squeeze the second spring 12. The doctor needs to use a certain amount of force to continue pulling the square rod 7, so that the locking block 13 is completely pulled out from the slots on both sides of the connecting rod 14 until the connecting rod 14 is completely pulled out from the square frame 11. Then, the new square rod 7 is moved closer to the outer frame 1 until the new connecting rod 14 is inserted into the square frame 11. Similarly, the locking block 13 will be squeezed and retracted into the square frame 11 until the locking block 13 is aligned with the slot. Under the rebound of the second spring 12, the locking block 13 is inserted into the slot, thus limiting the connection rod 14. Finally, the new square rod 7 and the expansion plug 8 are installed.

[0027] Working principle: Before use, install the complete and sterilized dilator 8 with the outer frame 1. Then, insert the dilator 8 into the patient's mouth so that the patient's lips are held in place by the dilator 8. Finally, adjust the rotation angle of the two sets of dilators 8 as needed to make the dilation diameter of the patient's mouth appropriate. The above is the complete working principle of this utility model.

[0028] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0029] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0030] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mouth opening device, characterized in that, include: The outer frame (1) has a first spring (10) fixed on one side of its front side. A pull bolt (2) is slidably inserted through one side of the front side of the outer frame (1), and one end of the pull bolt (2) is slidably inserted in the middle of the first spring (10). The other end of the pull bolt (2) is fixedly connected to the other end of the first spring (10). A movable column (3) is slidably inserted through one side of the outer frame (1), and a limit groove (4) is opened on one side of the movable column (3). Both ends of the upper end of the outer frame (1) are rotatably inserted with a central column (9). The outer surface of one set of the central columns (9) is located inside the outer frame (1) and a first gear (5) is fixedly sleeved thereon. The outer surface of the other set of the central columns (9) is located inside the outer frame (1) and a second gear (6) is fixedly sleeved thereon. One end of the central column (9) extends to the outside of the outer frame (1) and is fixed with a square frame (11). The inner walls of the square frame (11) are fixed with two ends of a second spring (12). One end of the second spring (12) is fixed with a locking block (13). A connecting rod (14) is slidably inserted in the middle of the square frame (11). One end of the connecting rod (14) is fixed with a square rod (7). An expansion plug (8) is fixed on one side of the top of the square rod (7).

2. The mouth opening device according to claim 1, characterized in that: The limiting groove (4) has multiple sets, and the multiple sets of the limiting groove (4) are equidistantly distributed on one side of the moving column (3) in a linear array. One end of the pull bolt (2) passes through the outer frame (1) and is slidably inserted into the limiting groove (4).

3. The mouth opening device according to claim 1, characterized in that: The top surface of the movable column (3) is provided with a tooth groove that meshes with the first gear (5). There is a clear gap between the movable column (3) and the second gear (6). The first gear (5) and the second gear (6) mesh with each other.

4. The mouth opening device according to claim 1, characterized in that: The square rod (7) and the expansion plug (8) are provided in two symmetrically distributed sets, and the surfaces of the square rod (7) and the expansion plug (8) in both sets are covered with soft silicone pads.

5. The mouth opening device according to claim 1, characterized in that: The card block (13) is provided in four groups. Each pair of card blocks (13) are symmetrically distributed on both sides of the inside of each group of squares (11). The card block (13) slides inside the square (11). Both sides of the card block (13) are set as inclined surfaces. The inclination of the inclined surface of the card block (13) away from the central column (9) is greater than the inclination of the inclined surface of the card block (13) closer to the central column (9).

6. The mouth opening device according to claim 1, characterized in that: The connecting rod (14) has slots on both sides that are adapted to the locking block (13). One end of the locking block (13) is slidably inserted into the slot, and the two are tightly attached without any gaps.

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