A type of gastroscopy dental support

Abstract

This invention provides a gastroscopy dental support, comprising a lower pad assembly, a strap, a rack assembly, a lifting assembly, an upper pad body, a drive assembly, a first pawl assembly, and a sliding pawl assembly. The strap is disposed on the lower pad assembly. The rack assembly is slidably disposed on the lower pad assembly, and the lifting assembly is rotatably disposed on the lower pad assembly. The upper pad body is connected to both the lifting assembly and the lower pad assembly. The sliding rack assembly enables the lifting assembly to raise or lower the upper pad body. The drive assembly is rotatably disposed on the lower pad assembly and can spontaneously return to its original position after rotation. The rotation of the drive assembly can cause the rack assembly to slide. The first pawl assembly is rotatably disposed on the lower pad assembly, and the sliding pawl assembly is slidably disposed on the lower pad assembly. The rotation of the drive assembly can cause the sliding pawl assembly to slide, thereby restricting the rotation of the drive assembly. The aforementioned gastroscopy dental support can be quickly adjusted to the minimum distance that the gastroscope can pass through.

Description

Technical Field

[0001] This invention relates to the field of gastric examination technology, and more specifically to a dental support for a gastroscope. Background Technology

[0002] As is well known, gastroscopy is a medical examination method that uses a thin, flexible tube inserted into the patient's stomach. Doctors can use a camera at the tip of the tube to view lesions in the patient's esophagus, stomach, and duodenum on a monitor. Because the endoscope tube contains signal lines for transmitting signals, and because the patient's throat is often constantly stimulated during the insertion of the tube, the patient will subconsciously close their mouth, and their teeth will inevitably bite against the endoscope tube. Over time, the endoscope tube will be damaged.

[0003] Therefore, dental supports are often needed during gastroscopy. However, existing dental supports may not be able to be adjusted in height or are difficult to adjust quickly to the minimum height required for the endoscope to pass through. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention proposes a dental support for gastroscopy, which solves the problem mentioned in the background art that existing dental supports are difficult to quickly adjust to the minimum height required for the gastroscope to pass through.

[0005] To solve this technical problem, the technical solution adopted by the present invention is as follows:

[0006] An endoscopic dental support includes a lower pad assembly, a strap, a rack assembly, a lifting assembly, an upper pad body, a drive assembly, a first pawl assembly, and a sliding pawl assembly;

[0007] The strap is provided on the lower pad assembly;

[0008] The rack assembly is slidably disposed on the lower pad assembly, the lifting assembly is rotatably disposed on the lower pad assembly, and the upper pad is connected to the lifting assembly and the lower pad assembly respectively; sliding the rack assembly can cause the lifting assembly to raise or lower the upper pad.

[0009] The drive assembly is rotatably mounted on the lower pad assembly and can spontaneously return to its original position after rotation. The rotation of the drive assembly can drive the rack assembly to slide. The first pawl assembly is rotatably mounted on the lower pad assembly, and the sliding pawl assembly is slidably mounted on the lower pad assembly. The rotation of the drive assembly can drive the sliding pawl assembly to slide, thereby restricting the rotation of the drive assembly.

[0010] Furthermore, the lower pad assembly includes a lower pad body and a telescopic rod; the strap is disposed on the lower pad body, the drive assembly is rotatably disposed on the lower pad body, the top surface of the lower pad body is provided with a placement groove, the rack assembly is slidably disposed in the placement groove, and the lifting assembly is rotatably disposed in the placement groove; the telescopic rod is disposed on the top surface of the lower pad body and is connected to the upper pad body.

[0011] Furthermore, the rack assembly includes a first rack and a second rack; the first rack is slidably connected to the inner side of the placement groove, and the rotation of the drive assembly can drive the first rack to slide; the second rack is disposed on the side of the first rack, and the sliding of the second rack can drive the lifting assembly to rotate.

[0012] Furthermore, the lifting assembly includes an internally threaded tube, an external toothed ring, and a stud; the internally threaded tube is rotatably connected to the bottom surface of the placement groove, the toothed ring is coaxially sleeved on the internally threaded tube, and the second rack can mesh with the external toothed ring; the stud is screwed into the internally threaded tube, and its top surface is rotatably connected to the upper pad.

[0013] Furthermore, the drive assembly includes a rotating shaft, a first gear, a second gear, a first torsion spring, and a ratchet; the rotating shaft is rotatably connected to the lower pad, one end of the rotating shaft is placed in the placement groove, and the first gear is coaxially arranged thereon, the first gear meshing with the first rack; the other end of the rotating shaft is placed outside the lower pad, and the ratchet is coaxially arranged thereon, the first pawl assembly can restrict the rotation of the ratchet; the second gear is coaxially arranged on the rotating shaft and close to the ratchet, and is connected to the lower pad through the first torsion spring; the rotation of the second gear can drive the sliding pawl assembly to slide, so that the sliding pawl assembly restricts the rotation of the ratchet.

[0014] Furthermore, the first pawl assembly includes a first pawl shaft, a first pawl body, and a first pawl torsion spring; the first pawl shaft is disposed on the lower pad, the first pawl body is rotatably connected to the first pawl shaft and connected to the lower pad through the first pawl torsion spring, and the first pawl body can restrict the rotation of the ratchet.

[0015] Furthermore, the sliding pawl assembly includes a sliding rack, a second pawl shaft, a second pawl body, and a second pawl torsion spring; the sliding rack is slidably connected to the lower pad and meshes with the second gear; the second pawl shaft is disposed on the sliding rack, the second pawl body is disposed on the second pawl shaft, and is connected to the sliding rack through the second pawl torsion spring.

[0016] The advancements of this application compared to existing technologies are as follows:

[0017] When the lifting component is at its lowest point, the drive component is in a self-recovering state and its rotation is restricted by the first pawl component. Rotating the first pawl component away from the drive component causes the drive component to rotate, which in turn causes the rack and pinion components and the sliding pawl component to slide, thereby causing the lifting component to lift the upper pad and the sliding pawl component to slide toward the drive component. When the upper pad moves to the minimum distance that the endoscope can pass through, the sliding pawl component slides to the bottom and restricts the rotation of the drive component. At this point, the device automatically adjusts to the minimum distance that the endoscope can pass through. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 A schematic diagram of a dental support for a gastroscope provided in an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A cross-sectional schematic diagram of a dental support for a gastroscopy is shown.

[0021] Figure 3 A schematic diagram of the lifting component;

[0022] Figure 4 This is a schematic diagram of a rack and pinion assembly;

[0023] Figure 5 This is a schematic diagram of the driving component.

[0024] Figure label:

[0025] 1-Lower pad assembly; 11-Lower pad body; 111-Placement slot; 12-Telescopic rod;

[0026] 2-Strap;

[0027] 3-Rack assembly; 31-First rack; 32-Second rack;

[0028] 4-Lifting assembly; 41-Internal threaded tube; 42-External toothed ring; 43-Stud;

[0029] 5-Upper pad body;

[0030] 6-Drive assembly; 61-Shaft; 62-First gear; 63-Second gear; 64-First torsion spring; 65-Ratchet;

[0031] 7-First pawl assembly; 71-First pawl shaft; 72-First pawl body; 73-First pawl torsion spring;

[0032] 8-Sliding pawl assembly; 81-Sliding rack; 82-Second pawl shaft; 83-Second pawl body; 84-Second pawl torsion spring. Detailed Implementation

[0033] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0034] Please refer to the following: Figures 1-5 This embodiment provides a gastroscopy dental support, including a lower pad assembly 1, a strap 2, a rack assembly 3, a lifting assembly 4, an upper pad body 5, a drive assembly 6, a first pawl assembly 7, and a sliding pawl assembly 8.

[0035] The strap 2 is located on the lower pad assembly 1. It should be understood that the device can be secured to the patient's head by the strap 2.

[0036] The rack assembly 3 is slidably mounted on the lower pad assembly 1, and the lifting assembly 4 is rotatably mounted on the lower pad assembly 1. The upper pad 5 is connected to both the lifting assembly 4 and the lower pad assembly 1. Sliding the rack assembly 3 allows the lifting assembly 4 to raise or lower the upper pad 5. Furthermore, the lifting assembly 4 and the rack assembly 3 can be arranged in a one-to-one correspondence and multiple sets can be provided. In this embodiment, two sets of lifting assemblies 4 are provided opposite each other. The driving assembly 6 can simultaneously drive multiple rack assemblies 3 to slide. In this embodiment, the driving assembly 6 can simultaneously drive two rack assemblies 3 to slide in opposite directions or towards each other. It should be understood that the endoscope passes between the upper pad 5 and the lower pad assembly 1, and between the two lifting assemblies 4.

[0037] In other embodiments, the lower pad assembly 1 includes a lower pad body 11 and a telescopic rod 12; a strap 2 is disposed on the lower pad body 11, a drive assembly 6 is rotatably disposed on the lower pad body 11, a placement groove 111 is provided on the top surface of the lower pad body 11, a rack assembly 3 is slidably disposed in the placement groove 111, and a lifting assembly 4 is rotatably disposed in the placement groove 111; the telescopic rod 12 is disposed on the top surface of the lower pad body 11 and connected to the upper pad body 5. It should be understood that the endoscope passes between the lower pad body 11 and the upper pad body 5, and when the lifting assembly 4 lifts the upper pad body 5, the telescopic rod 12 extends accordingly.

[0038] In other embodiments, the rack assembly 3 includes a first rack 31 and a second rack 32; the first rack 31 is slidably connected to the inner side of the placement groove 111, and the rotation of the drive assembly 6 can cause the first rack 31 to slide; the second rack 32 is disposed on the side of the first rack 31, and the sliding of the second rack 32 can cause the lifting assembly 4 to rotate. In this embodiment, the first rack 31 and the second rack 32 are set at 90°.

[0039] In other embodiments, the lifting assembly 4 includes an internally threaded tube 41, an external toothed ring 42, and a stud 43. The internally threaded tube 41 is rotatably connected to the bottom surface of the placement groove 111, the toothed ring is coaxially fitted onto the internally threaded tube 41, and the second rack 32 can mesh with the external toothed ring 42. The stud 43 is screwed into the internally threaded tube 41, and its top surface is rotatably connected to the upper pad 5. It should be understood that the sliding of the second rack 32 drives the internally threaded tube 41 to rotate, and the rotation of the internally threaded tube 41 drives the stud 43 to rotate and lift. Since the stud 43 is rotatably connected to the upper pad 5, and the upper pad 5 is connected by a telescopic rod 12 and will not rotate, that is, the upper pad 5 will not rotate but will only lift during the rotation and lifting process of the stud 43.

[0040] The drive assembly 6 is rotatably mounted on the lower pad assembly 1 and can spontaneously return to its original position after rotation. The rotation of the drive assembly 6 can drive the rack assembly 3 to slide. The first pawl assembly 7 is rotatably mounted on the lower pad assembly 1, and the sliding pawl assembly 8 is slidably mounted on the lower pad assembly 1. The rotation of the drive assembly 6 can drive the sliding pawl assembly 8 to slide, thus restricting the rotation of the drive assembly 6. It should be understood that when the upper pad 5 is at its lowest point, the drive assembly 6 is in a spontaneously returning state and its return is restricted by the first pawl assembly 7. During the return process of the drive assembly 6, the sliding assembly continuously moves closer to the drive assembly 6. During this process, the drive assembly 6 can engage the sliding pawl assembly 8. Subsequently, when the upper pad 5 is raised to the minimum height that the endoscope can pass through, the sliding pawl assembly 8 slides to its lowest point, simultaneously restricting the rotation of the drive assembly 6.

[0041] In other embodiments, the drive assembly 6 includes a rotating shaft 61, a first gear 62, a second gear 63, a first torsion spring 64, and a ratchet 65. The rotating shaft 61 is rotatably connected to the lower pad 11. One end of the rotating shaft 61 is placed in the placement groove 111 and coaxially disposed with the first gear 62, which meshes with the first rack 31. The other end of the rotating shaft 61 is placed outside the lower pad 11 and coaxially disposed with the ratchet 65. The first pawl assembly 7 can restrict the rotation of the ratchet 65. The second gear 63 is coaxially disposed on the rotating shaft 61 and close to the ratchet 65, and is connected to the lower pad 11 through the first torsion spring 64. The rotation of the second gear 63 can drive the sliding pawl assembly 8 to slide, thereby restricting the rotation of the ratchet 65. It should be understood that the first gear 62 can simultaneously drive multiple first racks 31 to slide. When the upper pad 5 is at its lowest point, the first torsion spring 64 is in a compressed state.

[0042] In other embodiments, the first pawl assembly 7 includes a first pawl shaft 71, a first pawl body 72, and a first pawl torsion spring 73; the first pawl shaft 71 is disposed on the lower pad 11, the first pawl body 72 is rotatably connected to the first pawl shaft 71, and is connected to the lower pad 11 through the first pawl torsion spring 73, and the first pawl body 72 can restrict the rotation of the ratchet 65.

[0043] In other embodiments, the sliding pawl assembly 8 includes a sliding rack 81, a second pawl shaft 82, a second pawl body 83, and a second pawl torsion spring 84; the sliding rack 81 is slidably connected to the lower pad 11 and meshes with the second gear 63; the second pawl shaft 82 is disposed on the sliding rack 81, the second pawl body 83 is disposed on the second pawl shaft 82, and is connected to the sliding rack 81 through the second pawl torsion spring 84. It should be understood that when the upper pad 5 is at its lowest point, the second pawl body 83 is away from the ratchet 65, and the second gear 63 meshes with the sliding rack 81. During the sliding rack 81's movement toward the drive assembly 6, the second pawl body 83 can be pushed and rotated by the ratchet 65. When the sliding rack 81 slides to its lowest point, the second pawl body 83 abuts against the ratchet 65 and restricts its rotation. At this time, the ratchet teeth of the sliding rack 81 have just left the second gear 63, and the distance between the upper pad 5 and the lower pad 11 is the minimum size through which the endoscope can pass. The torsion spring is still in a compressed state. If it is desired to further increase the distance between the upper pad 5 and the lower pad 11, it is only necessary to rotate the second pawl body 83 and the first pawl body 72 to move them away from the ratchet 65. The ratchet 65 will then continue to rotate, allowing the upper pad 5 to continue to rise. At the desired height, the first pawl body 72 and the second pawl body 83 will be released to restrict the ratchet 65's rotation.

[0044] When the aforementioned endoscope support is at its lowest point via the lifting assembly 4, the drive assembly 6 is in a self-recovering state, and its rotation is restricted by the first pawl assembly 7. Rotating the first pawl assembly 7 away from the drive assembly 6 causes the drive assembly 6 to rotate, causing the rack assembly 3 and the sliding pawl assembly 8 to slide, thereby causing the lifting assembly 4 to lift the upper pad 5 and the sliding pawl assembly 8 to slide toward the drive assembly 6. When the upper pad 5 moves to the minimum distance that the endoscope can pass through, the sliding pawl assembly slides to the bottom and restricts the rotation of the drive assembly 6. At this time, the device automatically adjusts to the minimum distance that the endoscope can pass through.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A dental support for gastroscopy, characterized in that, It includes a lower pad assembly, straps, rack assembly, lifting assembly, upper pad body, drive assembly, first pawl assembly, and sliding pawl assembly; The strap is provided on the lower pad assembly; The rack assembly is slidably disposed on the lower pad assembly, the lifting assembly is rotatably disposed on the lower pad assembly, and the upper pad is connected to the lifting assembly and the lower pad assembly respectively; sliding the rack assembly can cause the lifting assembly to raise or lower the upper pad. The drive assembly is rotatably mounted on the lower pad assembly and can spontaneously return to its original position after rotation. The rotation of the drive assembly can drive the rack assembly to slide. The first pawl assembly is rotatably mounted on the lower pad assembly, and the sliding pawl assembly is slidably mounted on the lower pad assembly. The rotation of the drive assembly can drive the sliding pawl assembly to slide, so that the sliding pawl assembly restricts the rotation of the drive assembly. The lower pad assembly includes a lower pad body and a telescopic rod; the strap is disposed on the lower pad body, the drive assembly is rotatably disposed on the lower pad body, the top surface of the lower pad body is provided with a placement groove, the rack assembly is slidably disposed in the placement groove, and the lifting assembly is rotatably disposed in the placement groove; the telescopic rod is disposed on the top surface of the lower pad body and is connected to the upper pad body; The rack assembly includes a first rack and a second rack; the first rack is slidably connected to the inner side of the placement groove, and the rotation of the drive assembly can drive the first rack to slide; the second rack is disposed on the side of the first rack, and the sliding of the second rack can drive the lifting assembly to rotate. The lifting assembly includes an internally threaded tube, an external toothed ring, and a stud; the internally threaded tube is rotatably connected to the bottom surface of the placement groove, the toothed ring is coaxially sleeved on the internally threaded tube, and the second rack can mesh with the external toothed ring; the stud is screwed into the internally threaded tube, and its top surface is rotatably connected to the upper pad. The drive assembly includes a rotating shaft, a first gear, a second gear, a first torsion spring, and a ratchet. The rotating shaft is rotatably connected to the lower pad. One end of the rotating shaft is placed in the placement groove and coaxially disposed with the first gear, which meshes with the first rack. The other end of the rotating shaft is placed outside the lower pad and coaxially disposed with the ratchet. A first pawl assembly can restrict the rotation of the ratchet. The second gear is coaxially disposed on the rotating shaft and close to the ratchet, and connected to the lower pad through the first torsion spring. The rotation of the second gear can drive the sliding pawl assembly to slide, thereby restricting the rotation of the ratchet. The first pawl assembly includes a first pawl shaft, a first pawl body, and a first pawl torsion spring; the first pawl shaft is disposed on the lower pad, the first pawl body is rotatably connected to the first pawl shaft and connected to the lower pad through the first pawl torsion spring, and the first pawl body can restrict the rotation of the ratchet. The sliding pawl assembly includes a sliding rack, a second pawl shaft, a second pawl body, and a second pawl torsion spring; the sliding rack is slidably connected to the lower pad and can mesh with the second gear; the second pawl shaft is disposed on the sliding rack, the second pawl body is disposed on the second pawl shaft, and is connected to the sliding rack through the second pawl torsion spring; When the lifting component is at its lowest point, the drive component is in a self-recovering state and its rotation is restricted by the first pawl component. Rotating the first pawl component moves it away from the drive component, and the drive component rotates to make the rack component and the sliding pawl component slide. This causes the lifting component to lift the upper pad and the sliding pawl component to slide toward the drive component. When the upper pad moves to the minimum distance that the endoscope can pass through, the sliding pawl component slides to the bottom and restricts the rotation of the drive component. At this time, the device automatically adjusts to the minimum distance that the endoscope can pass through.

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