Medical telescopic bite block

Abstract

The utility model discloses a medical telescopic bite block which comprises a shell, a movable opening is formed in one side of the shell, two movable distraction plates are symmetrically arranged in the shell, each movable distraction plate is in a Z shape and comprises a distraction piece, a connecting vertical plate and a driving transverse plate, and the end, away from the connecting vertical plate, of each distraction piece is in a concave arc shape. The two opening plates are arranged in an attached mode and extend out of the shell from the movable opening, adapters are installed on the two driving transverse plates, racks are fixedly installed on the adapters and are perpendicular to the driving transverse plates, a rotating shaft is rotationally connected to the side, away from the movable opening, of the shell, a gear is fixed to the rotating shaft, and the two racks are arranged on the two sides of the gear in a matched mode respectively. A handle rod perpendicular to the rotating shaft is arranged at the end, extending out of the shell, of the rotating shaft. The mouth of a patient can only be opened slightly, the two opening pieces are placed in the mouth of the patient and between the upper teeth and the lower teeth, then the handle rod is rotated, the handle rod can drive the two opening pieces to be far away from each other to achieve opening, and use is very convenient.

Description

Technical Field

[0001] The utility model belongs to the field of medical tools, and particularly relates to a medical retractable tooth pad. Background Art

[0002] A dental pad is a medical device commonly used in clinical practice. For example, it can be used to fix the patient's mouth in a suitable position during gastroscopy and / or treatment, transesophageal ultrasound examination, etc., to ensure the stability and accuracy of the examination instrument when inserted into the mouth. It is usually made of plastic or metal, with a simple structure and easy to use.

[0003] However, in clinical practice, especially in the critical care department, comatose patients are often encountered. Such patients have poor cooperation and limited mouth opening, making it difficult to put the dental pad in. The dental pad placement process may cause damage to the patient's teeth and gums, making it not very convenient to use. Utility Model Content

[0004] The utility model provides a medical retractable tooth pad, which is used to solve the technical problems mentioned in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a medical retractable tooth pad, comprising an outer shell, a movable expansion plate, a rack, a gear, a rotating shaft and a handle rod, a movable opening is opened on one side of the outer shell, the movable expansion plate has two and is symmetrically arranged inside the outer shell, the movable expansion plate is Z-shaped, including an expansion piece, a connecting vertical plate and a driving horizontal plate, the expansion piece extends into the patient's mouth, and the expansion piece is formed into an inwardly concave arc at one end away from the connecting vertical plate. The two expansion plates are arranged in a close relationship and extend out of the outer shell from the movable opening, and there is a spacing between the two driving horizontal plates. An adapter is installed on the two driving horizontal plates, and a rack is fixedly installed on the adapter, and the rack is perpendicular to the driving horizontal plate. A rotating shaft is rotatably connected to the side of the outer shell away from the movable opening, and a gear is fixed on the rotating shaft. The two racks are respectively arranged on both sides of the gear, and a handle rod perpendicular to the rotating shaft is arranged at one end of the rotating shaft extending out of the outer shell.

[0006] By adopting the above technical solution, for patients who are not conscious, the patient's mouth can only be opened a little bit. The use process of the device is as follows: initially, check whether the expansion plates are together. If they are together, they can be used directly. If they are not together, rotate the handle rod to merge the two expansion plates together, and then place the two expansion plates in the patient's mouth and between the upper and lower teeth. Then rotate the handle rod, and the handle rod can drive the gear to rotate. Due to the cooperation between the movable expansion plate and the outer shell, the rack can support the movable expansion plate, and the rack can only move up and down. The rotation of the gear can drive the rack to move, thereby driving the two movable expansion plates to move up and down respectively, so that the two expansion plates can be moved away from each other to achieve expansion, and the patient's mouth is opened. There is no need to pry the patient externally to cause harm, and it is very convenient to use.

[0007] Preferably, sliding plates are fixed to both sides of the driving cross plate, and sliding grooves matching the sliding plates are provided on the inner wall of the housing.

[0008] By adopting the above technical solution, on the one hand, the movable spreading plate can be well limited to move up and down, and on the other hand, it can be matched inside the housing so that the movable spreading plate supports inside the housing at the rack.

[0009] Preferably, the adapter includes four legs arranged in a rectangle and fixed on the driving cross plate, and an adapter plate fixed to the bottom of the legs. The rack is fixed on the adapter plate, and two adapters are arranged opposite to each other.

[0010] By adopting the above technical solution, the adapter can disperse the concentrated force of the rack on the driving cross plate and achieve force dispersion.

[0011] Preferably, a locking bolt is threadedly connected to the end of the handle rod far from the rotating shaft, and the locking bolt abuts against the housing.

[0012] By adopting the above technical solution, after the patient's mouth is opened, it can be fixed on the housing through the locking bolt, thereby preventing the rotating shaft from rotating and keeping the patient's mouth open.

[0013] Preferably, the top plate of the housing is fixed to the side plate by screws.

[0014] By adopting the above technical solution, the assembly and disassembly are relatively convenient.

[0015] Preferably, a U-shaped guiding column located outside the rack is fixed on the driving cross plate.

[0016] By adopting the above technical solution, the stability of the movement can be enhanced.

[0017] Preferably, both ends of the spreading piece have arc-shaped rounded corners.

[0018] By adopting the above technical solution, sharp corners are avoided and no damage is caused to the patient.

[0019] Preferably, two connecting rings are fixed on the outer surface of the housing, and an elastic strap with both ends connected to the connecting rings is provided.

[0020] By adopting the above technical solution, it can cooperate with the strap to be fixed on the patient's head, which is convenient to use.

[0021] The beneficial effects of the utility model are embodied in: for patients who are not conscious, the patient's mouth can only be opened a little bit, and the use process of the device is as follows: initially, check whether the expansion plates are together. If so, they can be used directly. If not, rotate the handle rod to merge the two expansion plates together, and then place the two expansion plates in the patient's mouth and between the upper and lower teeth. Then rotate the handle rod, and the handle rod can drive the gear to rotate. Due to the cooperation between the movable expansion plate and the outer shell, the rack can support the movable expansion plate, and the rack can only move up and down. The rotation of the gear can drive the rack to move, thereby driving the two movable expansion plates to move up and down respectively, so that the two expansion plates can be moved away from each other to achieve expansion, and the patient's mouth is opened without the need to pry the patient externally to cause harm. It is very convenient to use.

[0022] Other features and advantages of the utility model will be described in the subsequent description, and in part will become apparent from the description, or be understood by implementing the utility model; the main purpose and other advantages of the utility model can be realized and obtained through the solutions particularly pointed out in the description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of the structure of the housing of an embodiment of the utility model;

[0025] Figure 3 is a cross-sectional view of a housing of an embodiment of the utility model;

[0026] Figure 4 It is a three-dimensional diagram of the transmission diagram of the internal structure of the housing of the embodiment of the utility model;

[0027] Figure 5 It is a front view of the transmission diagram of the internal structure of the housing of the embodiment of the utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the housing of the embodiment of the utility model in an expanded state;

[0029] Figure 7 It is an overall view of the expanded state of an embodiment of the utility model.

[0030] Figure numerals: 1. outer shell; 2. movable expansion plate; 21. expansion plate; 22. connecting vertical plate; 23. driving horizontal plate; 3. rack; 4. gear; 5. rotating shaft; 6. handle rod; 7. adapter; 71. support leg; 72. adapter plate; 8. sliding plate; 9. locking bolt; 10. U-shaped guide column; 11. rounded corner; 12. connecting ring; 13. elastic strap. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is described in detail below through embodiments. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, but cannot be interpreted as limiting the technical solution of the present invention.

[0032] Combination Figures 1-7 , a medical retractable tooth pad, comprising a shell 1, a movable expansion plate 2, a rack 3, a gear 4, a rotating shaft 5 and a handle rod 6. A movable opening is opened on one side of the shell 1, and the movable expansion plate 2 has two and is symmetrically arranged inside the shell 1. The movable expansion plate 2 is Z-shaped, including an expansion piece 21, a connecting vertical plate 22 and a driving horizontal plate 23. The expansion piece 21 extends into the patient's mouth, and the expansion piece 21 is far from the end of the connecting vertical plate 22 to form an inwardly concave arc. The two expansion plates are arranged in a close relationship and extend out of the movable opening of the shell 1. There is a spacing between the two driving horizontal plates 23. An adapter 7 is installed on the two driving horizontal plates 23, and a rack 3 is fixedly installed on the adapter 7. The rack 3 is perpendicular to the driving horizontal plate 23. A rotating shaft 5 is rotatably connected to the side of the shell 1 away from the movable opening, and a gear 4 is fixed on the rotating shaft 5. The two racks 3 are respectively arranged on both sides of the gear 4, and a handle rod 6 perpendicular to the rotating shaft 5 is arranged at one end of the rotating shaft 5 extending out of the shell 1.

[0033] For patients who are not conscious, their mouths can only be opened a little bit. The use process of the device is as follows: initially, check whether the expansion pieces 21 are together. If so, they can be used directly. If not, rotate the handle bar 6 to merge the two expansion pieces 21 together, and then place the two expansion pieces 21 in the patient's mouth and between the upper and lower teeth. Then rotate the handle bar 6, which can drive the gear 4 to rotate. Due to the cooperation between the movable expansion plate 2 and the outer shell 1, the rack 3 can support the movable expansion plate 2, and the rack 3 can only move up and down. The rotation of the gear 4 can drive the rack 3 to move, thereby driving the two movable expansion plates 2 to move up and down respectively, so that the two expansion pieces 21 can move away from each other to achieve expansion, and the patient's mouth is expanded. There is no need to pry the patient externally to cause harm, and it is very convenient to use.

[0034] Sliding plates 8 are fixed on both sides of the driving cross plate 23, and sliding grooves matching the sliding plates 8 are provided on the inner wall of the outer shell 1. On the one hand, the movable expansion plate 2 can be well limited to move up and down, and on the other hand, it can be matched in the outer shell 1 so that the movable expansion plate 2 is supported in the outer shell 1 at the rack 3.

[0035] The adapter 7 includes four rectangularly arranged legs 71 fixed on the driving cross plate 23 and an adapter plate 72 fixed on the bottom of the legs 71. The rack 3 is fixed on the adapter plate 72. The two adapters 7 are arranged opposite each other. The adapter 7 can disperse the concentrated force of the rack 3 on the driving cross plate 23 to achieve force dispersion.

[0036] One end of the handle rod 6 far from the rotating shaft 5 is threadedly connected with a locking bolt 9. The locking bolt 9 abuts against the outer shell 1. After the patient's mouth is opened, it can be fixed on the outer shell 1 through the locking bolt 9, so as to prevent the rotating shaft 5 from rotating, thereby keeping the patient's mouth open.

[0037] The top plate of the outer shell 1 is fixed to the side plate by screws, which is convenient for assembly and disassembly.

[0038] A U-shaped guiding column 10 located outside the rack 3 is fixed on the driving cross plate 23, which can enhance the stability of movement.

[0039] Both ends of the spreading piece 21 have arc-shaped rounded corners 11 to avoid forming sharp corners and causing no damage to the patient.

[0040] Two connecting rings 12 are fixed on the outer surface of the outer shell 1. An elastic strap 13 with both ends connected to the connecting rings 12 is provided, which can cooperate with the strap to be fixed on the patient's head and is convenient to use.

[0041] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A medical retractable tooth pad, characterized in that: The invention comprises a housing (1), a movable opening plate (2), a rack (3), a gear (4), a rotating shaft (5) and a handle bar (6); a movable opening is opened on one side of the housing (1); the movable opening plates (2) have two movable opening plates (2) and are symmetrically arranged inside the housing (1); the movable opening plates (2) are Z-shaped and comprise an opening piece (21), a connecting vertical plate (22) and a driving horizontal plate (23); the opening piece (21) extends into the patient's mouth; one end of the opening piece (21) away from the connecting vertical plate (22) is in an inwardly concave arc shape; the two opening plates are arranged in close contact and are movable from the movable opening. The housing (1) extends outward, and a spacing is formed between the two driving transverse plates (23). The two driving transverse plates (23) are provided with adapters (7). A rack (3) is fixedly mounted on the adapter (7). The rack (3) is perpendicular to the driving transverse plate (23). A rotating shaft (5) is rotatably connected to a side of the housing (1) away from the movable opening. A gear (4) is fixed to the rotating shaft (5). The two racks (3) are respectively arranged on both sides of the gear (4). A handle bar (6) perpendicular to the rotating shaft (5) is arranged at one end of the rotating shaft (5) extending outward from the housing (1).

2. A medical retractable tooth pad according to claim 1, characterized in that: Sliding plates (8) are fixed on both sides of the driving transverse plate (23), and sliding grooves matching the sliding plates (8) are arranged on the inner wall of the housing (1).

3. The medical retractable tooth pad according to claim 2, characterized in that: The adapter (7) comprises four legs (71) arranged in a rectangular shape and fixed on the driving transverse plate (23) and an adapter plate (72) fixed on the bottom of the legs (71); the rack (3) is fixed on the adapter plate (72); and the two adapters (7) are arranged opposite to each other.

4. The medical retractable tooth pad according to claim 3, characterized in that: One end of the handle bar (6) away from the rotating shaft (5) is threadedly connected with a locking bolt (9), and the locking bolt (9) abuts against the housing (1).

5. The medical retractable tooth pad according to claim 4, characterized in that: The top plate of the housing (1) is fixed to the side plates by means of screws.

6. The medical retractable tooth pad according to claim 5, characterized in that: A U-shaped guide column (10) located outside the rack (3) is fixed on the driving transverse plate (23).

7. The medical retractable tooth pad according to claim 6, characterized in that: Both ends of the expansion piece (21) have arc-shaped rounded corners (11).

8. The medical retractable tooth pad according to claim 7, characterized in that: Two connecting rings (12) are fixed to the outer surface of the shell (1), and an elastic binding band (13) is provided with two ends connected to the connecting rings (12).

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