Mouth opening maintaining tool for dental treatment

Abstract

The application discloses a mouth opening keeping tool for oral treatment in the technical field of oral opening keeping, which comprises a support frame, and further comprises a first opening plate and a second opening plate, wherein the first opening plate and the second opening plate are slidably connected with the support frame; and a first bidirectional screw rod is rotatably connected with the top end of the support frame and is threadedly connected with the first opening plate and the second opening plate. In the process of keeping the mouth open, the wet layer is rolled along the lip corner by the reciprocating lifting of the driving rod to moisten the lip corner of the patient, so that the patient does not need to actively lick the lips by the tongue to affect the operation of the medical staff, and the tearing pain caused by the dry cracking of the lip corner of the patient during the operation of the medical staff on the mouth is avoided, thereby causing the discomfort of the patient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oral cavity expansion, in particular to a mouth opening keeping tool for oral treatment. BACKGROUND

[0002] When treating or examining the oral cavity, the patient usually needs to keep the mouth open for a long time, which will cause the patient's face or oral cavity to be uncomfortable and close the mouth uncontrollably due to the instinctive action, thereby affecting the operation of the medical staff. In order to facilitate the patient's mouth opening and the operation of the medical staff, an external supporting device is often used to assist the patient's mouth opening.

[0003] When the existing supporting device expands the oral cavity, the lip arch, upper lip peak, lower lip peak and lip corner in the patient's lip part will be opened. When the oral cavity is opened to the maximum, the upper lip peak and the lower lip peak will not be torn, but will be gradually tightened, and the lip arch will not be torn, but the lip corner will be torn. Although it is not a big problem in normal circumstances, the patient's lip part will be dry in the cold weather of winter, causing the lip corner or the upper and lower lips to crack, especially the position of the lip corner. Since the lip arch, the upper lip peak and the lower lip peak are not under stress when the oral cavity is opened, even if there is a dry crack, it does not hinder the opening of the oral cavity, but the lip corner position will be torn seriously after the dry crack, causing serious discomfort. SUMMARY

[0004] The purpose of the present application is to provide a mouth opening keeping tool for oral treatment to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a mouth opening keeping tool for oral treatment, comprising a supporting frame, further comprising:

[0006] A first expansion plate and a second expansion plate are slidably connected to the supporting frame. A first bidirectional screw is rotatably connected to the top end of the supporting frame and is threadedly connected to the first expansion plate and the second expansion plate. Two side plates are symmetrically arranged above the supporting frame. Two drive rods are symmetrically distributed and slidably connected to the side plates. A drive assembly is located below the drive rods and drives the drive rods to move up and down. A connecting piece is arranged in front of each drive rod and can move synchronously with the drive rods. A sliding block is arranged in pairs and slides on the connecting pieces. A first spring is fixed between the sliding block and the inner wall of the connecting piece. A fixing piece is arranged in pairs above the sliding blocks. A plug rod is rotatably arranged on the fixing piece. A wet layer is sleeved on the plug rods.

[0007] As a further scheme of the present application, the driving assembly has two groups and is arranged on one side of the driving rod respectively, and the driving assembly comprises:

[0008] The motor is fixedly connected to the side plate, the wheel disc is fixedly connected to the output shaft of the motor, the push block is slidingly connected to the inner wall of the side plate, one end of the pull rod is rotatably connected to the push block and the other end is eccentrically rotatably connected to the wheel disc, the push rod is rotatably connected to the top of the push block and the bottom of the push rod is rotatably connected to the side wall of the driving rod, and the reciprocating movement of the push block drives the push rod to drive the driving rod and the connecting piece to reciprocate and lift.

[0009] As a further scheme of the present application, the end of the push block is provided with a pressing end.

[0010] As a further scheme of the present application, the connecting piece is slidingly connected with a fixing rod, the second spring is fixedly connected between the top and bottom of the fixing rod and the connecting piece, the first air cylinder is fixedly connected between the fixing rod and the side plate, the seizing piece is slidingly connected to the connecting piece, the third spring is fixedly connected between the seizing piece and the connecting piece, and the end of the seizing piece is wedge-shaped.

[0011] As a further scheme of the present application, the side of the fixing rod is provided with a rack rod, the rack rod is fixedly connected to the side plate, the rack rod is located in front of the fixing piece, the fixing piece is externally provided with teeth capable of engaging with the rack rod, the fixing piece is rotatably connected with the sliding block, and the torsional spring is sleeved between the rotating shaft of the fixing piece and the sliding block.

[0012] As a further scheme of the present application, the push block is slidingly connected with the pressing end, and the second air cylinder is fixedly connected between the push block and the pressing end.

[0013] As a further scheme of the present application, the two side plates are slidingly connected with the support frame, and the second bidirectional screw rod is threadedly connected to the two side plates.

[0014] As a further scheme of the present application, the wet layer can be one of sponge, non-woven fabric and sterile tape.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] 1. In the process of keeping the oral cavity open, the wet layer rolls along the lip corner to wet the lip corner of the patient through the reciprocating lifting of the driving rod, so that the patient does not need to actively move the tongue to influence the operation of the medical staff, and the tearing pain caused by the dry cracking of the lip corner of the patient during the operation of the medical staff on the oral cavity is avoided.

[0017] 2. When the mouth is open, the muscle tissue is pressed by the pressing end, and the pressing end is driven to press and rub the part by the reciprocating movement of the push block, so that the overall muscle tissue stiffness that should occur during the opening of the mouth is interrupted. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the application;

[0019] Figure 2 It is a schematic diagram of the connection relationship between the support frame and the first and second opening plates of the application;

[0020] Figure 3 It is a schematic diagram of the contact between the lip corner and the wet layer of the application;

[0021] Figure 4 It is a schematic diagram of the position relationship between the push rod, the drive rod and the connecting piece of the application;

[0022] Figure 5 It is a side view of the connecting piece, the fixed rod and the rack rod of the application;

[0023] Figure 6 It is a schematic diagram of the position relationship between the first spring and the biting piece of the application;

[0024] Figure 7 It is a schematic diagram of the drive rod descending from above the biting piece of the application;

[0025] Figure 8 It is a schematic diagram of the position relationship between the push rod, the drive rod and the push block of the application;

[0026] Figure 9 It is a schematic diagram of the position relationship between the pressing end, the push block and the second cylinder of the application;

[0027] Figure 10 It is a schematic diagram of the pressing end pressing the face when the face is pressed.

[0028] In the drawings, the components represented by each reference numeral are as follows:

[0029] 1, support frame; 2, first opening plate; 3, second opening plate; 4, side plate; 5, drive rod; 6, connecting piece; 7, sliding block; 8, first spring; 9, fixed piece; 10, insertion rod; 11, wet layer; 12, motor; 13, wheel disc; 14, push block; 15, pull rod; 16, push rod; 17, pressing end; 18, second double screw; 19, first double screw; 20, fixed rod; 21, second spring; 22, first cylinder; 23, biting piece; 24, third spring; 25, torsion spring; 26, second cylinder; 27, rack rod. DETAILED DESCRIPTION

[0030] Please refer to Figures 1-10 The present application provides a technical solution: a mouth opening keeping tool for oral treatment, comprising a support frame 1, further comprising:

[0031] The first and second opening plates 2 and 3 are slidably connected to the support frame 1; the first bidirectional screw rod 19 is rotatably connected to the top end of the support frame 1 and is threadedly connected to the first and second opening plates 2 and 3; two side plates 4 are symmetrically arranged above the support frame 1; two drive rods 5 are symmetrically distributed and are respectively arranged on one side of the two side plates 4 and are slidably connected to the side plates 4; a drive assembly is arranged below the drive rods 5 and is used to drive the drive rods 5 to move up and down; a connecting piece 6 is arranged in front of each drive rod 5 and can move synchronously with the drive rod 5; a pair of sliding blocks 7 are arranged and are slidably arranged on the two connecting pieces 6, and a first spring 8 is fixedly connected between each sliding block 7 and the inner wall of the connecting piece 6; a fixing piece 9 is arranged on each sliding block 7, and a plug rod 10 is rotatably arranged on the fixing piece 9; a wetting layer 11 is sleeved on the two plug rods 10.

[0032] As Figures 1-7 shown:

[0033] Before use, the support frame 1 is placed on a table, and the patient's mouth is aligned with the first and second opening plates 2 and 3, and then the patient's mouth is opened to make the first and second opening plates 2 and 3 enter the mouth, and the first bidirectional screw rod 19 is rotated to make the first and second opening plates 2 and 3 lift the teeth to open the mouth, at this time the two wetting layers 11 will contact the middle of the patient's lip corners and will block the wetting layers 11, at this time the wetting layer 11, the plug rod 10 and the fixing piece 9 will drive the sliding block 7 to slide along the connecting piece 6 and compress the first spring 8, the wetting layer 11 is soaked in water or oil and has the function of wetting the lip corners, and then the medical staff can operate the patient's mouth;

[0034] During the operation of the patient's mouth by the medical staff, the drive assembly is started, which will cyclically drive the drive rod 5 to rise and fall along the side plate 4, and the connecting piece 6 will move synchronously when the drive rod 5 rises and falls, at this time the wetting layer 11 will roll along the stretched lip corners, as Figure 3 shown, the resistance generated by the contact between the wetting layer 11 and the lip corners during the reciprocating lifting of the connecting piece 6 will make the plug rod 10, the fixing piece 9 and the sliding block 7 slide along the connecting piece 6, at this time the first spring 8 is intermittently compressed and reset, so that the lip corners and the wetting layer 11 can continuously maintain the state of contact, thereby wetting the lip corners to avoid tearing pain caused by dry cracking of the lip corners;

[0035] The present application, in the process of keeping the mouth open, the wet layer 11 along the lip roll by driving the reciprocating rod 5 to make the patient's lip wet, without the patient's initiative by the tongue to the mouth of the medical staff operating, and avoid in the medical staff to the operation of the mouth of the patient's lip dry crack when the tear caused by the pain of patients with discomfort;

[0036] When the medical staff operation is completed, only need to rotate the first two-way screw 19 to make the first and second support plate 2 and 3 close to each other can be completed reset.

[0037] The driving assembly has two groups and is arranged on one side of the driving rod 5, and the driving assembly comprises:

[0038] The motor 12 is fixedly connected to the side plate 4; the wheel disc 13 is fixedly connected with the output shaft of the motor 12; the push block 14 is slidingly connected with the inner wall of the side plate 4; the pull rod 15 is rotatably connected with one end of the push block 14 and eccentrically connected with the other end on the wheel disc 13; the push rod 16 is rotatably connected with the top of the push block 14 and rotatably connected with the bottom of the driving rod 5, and the push block 14 is moved back and forth to drive the push rod 16 and the connecting piece 6 to move up and down.

[0039] As shown in Figure 1 、 Figure 4 、 Figure 8 and Figure 9 :

[0040] When the mouth is opened, the motor 12 is started, the motor 12 drives the wheel disc 13 to rotate, the pull rod 15 eccentrically arranged on the wheel disc 13 drives the push block 14 to slide back and forth in the inner wall of the slot pre-provided on the side plate 4, and the push block 14 slides back and forth to drive the push rod 16 to drive the driving rod 5 to slide up and down along the side plate 4, thereby driving the connecting piece 6 and the wet layer 11 to move up and down.

[0041] The end of the push block 14 is provided with a pressing end 17.

[0042] As shown in Figure 1 、 Figure 4 and Figure 9 and Figure 10 :

[0043] Before the oral cavity is expanded by the first expansion plate 2 and the second expansion plate 3, the patient's face is between the two side plates 4, at this time, the two pressing ends 17 are in the position of the muscle tissue of the "upper jaw edge" and "middle screen" of the face, when the oral cavity is not expanded, the pressing end 17 only contacts the skin of this part but does not press the skin, and when the oral cavity is expanded, the jaw expands the muscle of this part and pushes the pressing end 17, and the pressing end 17 cannot move, so that the muscle of the "upper jaw edge" and "middle screen" is pressed, and when the oral cavity is expanded, the muscle of this part is pressed by the pressing end 17, and the reciprocating movement of the push block 14 forward and backward with the rotation of the wheel disc 13 drives the pressing end 17 to press and rub this part, and through the pressing and reciprocating rubbing, the overall muscle stiffness that should occur during the expansion of the oral cavity can be interrupted, as shown in Figure 10 Under the long-time force of the pressing end 17, the muscle tissue of this area can recover quickly even if it is sore, but if the overall muscle stiffness causes muscle fatigue, it will cause long-term discomfort in speaking and eating;

[0044] When the medical staff completes the operation, the oral cavity is separated from the first expansion plate 2 and the second expansion plate 3, and the resistance of the pressing end 17 to the skin disappears when the oral cavity is closed.

[0045] The connecting piece 6 is slidably connected with a fixed rod 20, the top end and the bottom end of the fixed rod 20 and the connecting piece 6 are fixedly connected with a second spring 21, the fixed rod 20 and the side plate 4 are fixedly connected with a first air cylinder 22, the connecting piece 6 is slidably connected with a biting piece 23, the connecting piece 6 and the biting piece 23 are fixedly connected with a third spring 24, and the end of the biting piece 23 is wedge-shaped. When the driving rod 5 contacts the upper and lower biting pieces 23, the driving rod 5 can be embedded in the two biting pieces 23 by pressing the biting piece 23 downward to make the biting piece 23 slide along the connecting piece 6.

[0046] As shown in Figure 1 , Figures 4-7 ,

[0047] After the oral cavity is expanded, the work of moistening the lip corner can be intermittent, when it is needed to stop the work of moistening the lip corner, the first air cylinder 22 is started, the first air cylinder 22 is elongated to push the fixed rod 20 and the connecting piece 6 to move forward, at this time, the biting piece 23 is separated from the driving rod 5, so that the driving rod 5 does not drive the connecting piece 6 to move up and down when it moves up and down, at this time, the continuous rotation of the motor 12 makes the pressing end 17 continue to press the patient's face, and the wet layer 11 is separated from the lip corner and stops moving up and down, at this time, the connecting piece 6 is in front of the middle position of the lip corner under the action of the two second springs 21.

[0048] When the wetting of the corners of the lips needs to be continued, the first cylinder 22 is shortened to the limit, at which time the fixed rod 20 and the connecting piece 6 are both moved to the limit backward, and the wetting layer 11 is in contact with the corners of the lips again, so the driving rod 5 is continuously moved up and down, so when the connecting piece 6 is moved to the limit backward, the driving rod 5 is above or below the connecting piece 6 and approaches the connecting piece 6, but when the driving rod 5 approaches the connecting piece 6, the end of the driving rod 5 is in contact with the end of the biting piece 23 above or below, and the end of the biting piece 23 is wedge-shaped, so the contact between the end of the driving rod 5 and the biting piece 23 pushes the biting piece 23 to slide along the connecting piece 6 and compresses the third spring 24, so that the end of the driving rod 5 can pass the biting piece 23 and be between the two biting pieces 23, at which time the two biting pieces 23 are in the middle of the driving rod 5 and limit the driving rod 5, at which time the up and down movement of the driving rod 5 drives the connecting piece 6 to move up and down, and the connecting piece 6 slides up and down along the fixed rod 20 and compresses and stretches the two second springs 21 above, so that the wetting layer 11 wets the corners of the lips.

[0049] The fixed rod 20 is provided with a rack rod 27 on one side, and the rack rod 27 is fixedly connected to the side plate 4, and the rack rod 27 is located in front of the fixed piece 9, and the fixed piece 9 is externally provided with teeth that can engage with the rack rod 27, and the fixed piece 9 is rotatably connected with the sliding block 7, and a torsional spring 25 is sleeved between the rotating shaft of the fixed piece 9 and the sliding block 7.

[0050] As shown in Figure 1 , Figure 4 and Figure 5 :

[0051] When the first cylinder 22 is elongated to drive the fixed rod 20 and the connecting piece 6 to move forward to the limit, the fixed piece 9 will be in contact with and engage with the rack rod 27, at which time the fixed piece 9 will be rotated on the sliding block 7 around the rotating shaft and compress the torsional spring 25, so that the fixed piece 9 rotates with the insertion rod 10, at which time the wetting layer 11 will rotate to both sides after moving to the front of the oral cavity, which can be displaced when the corners of the lips do not need to be wetted, and can also facilitate the addition of water or oil to the wetting layer 11 to avoid the wetting layer 11 from not being wetted;

[0052] and the torsional spring 25 has a large elastic force, which can keep the continuous contact with the corners of the lips by sliding the sliding block 7 along the connecting piece 6 when the wetting layer 11 is blocked from rotating in contact with the corners of the lips.

[0053] The push block 14 is slidably connected with the pressing end 17, and the second cylinder 26 is fixedly connected between the push block 14 and the pressing end 17.

[0054] As shown in Figure 9 :

[0055] The left and right positions of the pressing end 17 can be controlled by the extension and retraction of the second cylinder 26, because after the oral cavity is opened, the face will move closer to the pressing end 17, at this time, the pressing end 17 will press the patient's face, and the front and back movement of the push block 14 can continuously press the patient's face, when it is necessary to cancel the pressing, the second cylinder 26 can be controlled to be shortened, then the pressing end 17 will move in the opposite direction of the push block 14 and separate from the patient's face, and then the pressing work is intermittently stopped when the lip corner is moistened.

[0056] The two side plates 4 are slidably connected with the support frame 1, and the second bidirectional screw rod 18 is threadedly connected on the two side plates 4 and rotationally connected with the support frame 1.

[0057] As shown in Figure 1 and Figure 2 :

[0058] The rotation of the second bidirectional screw rod 18 can make the two side plates 4 close and away from each other, so that the distance between the two pressing ends 17 can be finely adjusted, thereby ensuring that the pressing end 17 can be conveniently contacted with the face.

[0059] The wetting layer 11 can be one of sponge, non-woven fabric and sterile tape.

[0060] As shown in Figure 4 and Figure 5 :

[0061] The wetting layer 11 can be fixed in the form of sleeving on the insertion rod 10 or winding on the insertion rod 10, but the material thereof should meet the requirement of having the function of absorbing liquid, so as to ensure the wetting of the lip corner.

Claims

1. An open-mouth holding tool for oral treatment, comprising a support frame (1), characterized in that, Also include: The first opening plate (2) and the second opening plate (3) are slidably connected with the support frame (1); The first bidirectional screw rod (19) is rotatably connected with the top end of the support frame (1) and is threadedly connected with the first opening plate (2) and the second opening plate (3); Two side plates (4) are symmetrically arranged above the support frame (1); The driving rods (5) are symmetrically distributed, and two driving rods (5) are arranged on one side of the two side plates (4) and are slidably connected with the side plates (4); The driving assembly is located below the driving rod (5) and drives the driving rod (5) to move up and down; The connecting pieces (6) are arranged in front of the driving rods (5), and the connecting pieces (6) can move synchronously with the driving rods (5); The sliding blocks (7) are arranged in pairs and slide on the two connecting pieces (6), and the first springs (8) are fixedly connected between the sliding blocks (7) and the inner walls of the connecting pieces (6); The fixing pieces (9) are arranged in pairs and are arranged above the two sliding blocks (7), and the insertion rods (10) are rotatably arranged on the fixing pieces (9); The wet layer (11) is sleeved on the two insertion rods (10).

2. The mouth opening maintaining tool for dental treatment according to claim 1, characterized by: The driving assembly has two groups and is arranged on one side of the driving rod (5), and the driving assembly comprises: The motor (12) is fixedly connected to the side plate (4); The wheel disc (13) is fixedly connected with the output shaft of the motor (12); The push block (14) is slidably connected with the inner wall of the side plate (4); The pull rod (15) is rotatably connected with the push block (14) at one end and eccentrically rotatably connected with the wheel disc (13) at the other end; The push rod (16) is rotatably connected to the push block (14) at the top end and rotatably connected to the side wall of the driving rod (5) at the bottom end, and the reciprocating movement of the push block (14) drives the push rod (16) to reciprocatingly lift the driving rod (5) and the connecting piece (6).

3. A mouth prop according to claim 2, wherein: The end of the push block (14) is provided with a pressing end (17).

4. The mouth positioning device of claim 2, wherein: The connecting piece (6) is slidably connected with the fixed rod (20), the second spring (21) is fixedly connected between the top end and the bottom end of the connecting piece (6), the first air cylinder (22) is fixedly connected between the connecting piece (6) and the side plate (4), the seizing piece (23) is slidably connected on the connecting piece (6), the third spring (24) is fixedly connected between the seizing piece (23) and the connecting piece (6), and the end of the seizing piece (23) is wedge-shaped. When the driving rod (5) contacts the seizing pieces (23) above and below, the seizing pieces (23) slide along the connecting piece (6) by pressing downward, so that the driving rod (5) can be embedded in the two seizing pieces (23).

5. A mouth prop according to claim 4, wherein: The fixed rod (20) is provided with a rack rod (27) on one side, the rack rod (27) is fixedly connected to the side plate (4), the rack rod (27) is located in front of the fixed part (9), the fixed part (9) is provided with teeth outside, which can be engaged with the rack rod (27), the fixed part (9) is rotatably connected with the sliding block (7), and the torsional spring (25) is sleeved between the rotating shaft of the fixed part (9) and the sliding block (7).

6. The mouth prop of claim 3, wherein: The push block (14) is slidably connected with the pressing end (17), and the second air cylinder (26) is fixedly connected between the push block (14) and the pressing end (17).

7. The mouth prop of claim 1, wherein: The two side plates (4) are slidably connected with the support frame (1), and the second bidirectional screw rod (18) is threadedly connected to the two side plates (4), and the second bidirectional screw rod (18) is rotatably connected to the support frame (1).

8. The mouth prop of claim 1, wherein: The wet layer (11) can be one of sponge, non-woven fabric and sterile tape.

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