Intraoral auxiliary mouth opening device for cervical vertebra mouth opening position

Abstract

The intraoral auxiliary mouth opening device for the cervical vertebra mouth opening position comprises an intraoral support, and the intraoral support comprises an upper U-shaped frame, a lower U-shaped frame and an elastic deformation part; the rear end of the upper U-shaped frame and the rear end of the lower U-shaped frame are integrally formed and connected through an elastic deformation part, and the opening and closing angle between the upper U-shaped frame and the lower U-shaped frame can be adjusted. Two side angle fixing structures located on the left side and the right side of the tongue and a front angle fixing structure located on the front side of the tongue are arranged between the upper U-shaped frame and the lower U-shaped frame. According to the utility model, the mouth opening angle and range are effectively adjusted and fixed, the shooting efficiency and accuracy are improved, the device is particularly beneficial to the shooting of patients with trauma and mobility inconvenience, the mouth opening position of the cervical vertebra can be observed at multiple angles, the accuracy of X-ray shooting and diagnosis is improved, and meanwhile, the uniformity of the shooting positions of the same part is ensured.

Description

Technical Field

[0001] This utility model relates to the field of medical testing equipment technology, specifically to an intraoral auxiliary mouth-opening device for the cervical spine mouth-opening position. Background Technology

[0002] In the diagnosis and treatment of orthopedic diseases, if a patient is suspected of having cervical subluxation or odontoid fracture, it is often necessary to take a cervical spine open-mouth view radiograph.

[0003] The standard method for taking an open-mouth cervical spine radiograph is to position the patient vertically to the cassette along the nasal-auditory line (the line connecting the external auditory canal and the anterior nasal spine), with the mouth as wide open as possible. However, current techniques for taking open-mouth cervical spine radiographs require the patient to open their mouth voluntarily, adjusting the position and range of mouth opening as much as possible to achieve the desired image. Currently, the normal range of mouth opening for adults is approximately 35-55 mm, based on the distance between the incisors, with an estimated angle of 20-40 degrees. However, the angle of mouth opening varies from person to person and is greatly influenced by subjective factors. Furthermore, movement is common during the imaging process, often resulting in inconsistent and non-standard positioning after imaging, and motion artifacts in the image. This is especially true for patients with trauma or limited mobility, who are even less likely to achieve the ideal positioning, leading to non-standard images that fail to meet diagnostic requirements. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides an intraoral auxiliary mouth opening device for the cervical spine mouth opening position.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An intraoral auxiliary mouth-opening device for cervical spine mouth-opening position includes an intraoral support, the intraoral support comprising an upper U-shaped frame, a lower U-shaped frame, and an elastically deformable part; the rear ends of the upper U-shaped frame and the rear ends of the lower U-shaped frame are integrally connected by the elastically deformable part, and the opening angle between the upper U-shaped frame and the lower U-shaped frame is adjustable; characterized in that:

[0007] Two side angle fixing structures are provided between the upper U-shaped frame and the lower U-shaped frame, located on the left and right sides of the tongue respectively, and a front angle fixing structure is located on the front side of the tongue. The side angle fixing structure includes a side fixing groove on the lower U-shaped frame and a side support rod whose upper end is rotatably connected to the upper U-shaped frame via a support rod hinge shaft. The side fixing groove is provided with multiple side limiting tooth grooves. The lower end of the side support rod is configured to be able to rotate and slide into the side fixing groove and cooperate with the side limiting tooth grooves during the opening and closing of the upper U-shaped frame and the lower U-shaped frame, with the support rod hinge shaft as the rotation axis.

[0008] The front angle fixing structure includes an upper fixing plate protruding on the upper U-shaped frame and a lower fixing seat protruding on the lower U-shaped frame. The upper fixing plate and the lower fixing seat are constrained in relative position by locking components.

[0009] In this utility model, the upper fixing plate is provided with a locking elongated hole extending from top to bottom, the front side of the lower fixing seat is provided with a clearance hole for avoiding the locking member, and the rear side is provided with a fixing hole corresponding to the locking elongated hole. The locking member presses against the upper fixing plate and passes through the locking elongated hole and is fixed in the fixing hole.

[0010] In this utility model, the lower fixing seat is provided with a telescopic hole with an upper opening, and the lower end of the upper fixing plate is slidably and telescopically inserted into the telescopic hole. The telescopic hole is located between the clearance hole and the fixing hole, and both the clearance hole and the fixing hole are connected to the telescopic hole.

[0011] In this utility model, the fixing hole is a screw hole, and the locking member includes a screw part, an operating handle integrally formed at one end of the screw part, and a pressing head integrally formed at the other end of the screw part. The screw part is threaded into the fixing hole; the pressing head is used to extend into the clearance hole to press the upper fixing plate.

[0012] In this utility model, the front end of the upper U-shaped frame is provided with an upper operating part, and the front end of the lower U-shaped frame is provided with a lower operating part.

[0013] In this utility model, both the upper surface of the upper operating part and the lower surface of the lower operating part are recessed with anti-slip grooves.

[0014] In this utility model, the upper end face of the upper U-shaped frame is provided with two movable limiting parts arranged from front to back, and a tooth matching groove is formed between the two movable limiting parts.

[0015] In this utility model, the intraoral auxiliary mouth-opening device further includes a silicone sleeve, the shape of which is the same as that of the intraoral support, and a wrapping groove is provided inside the silicone sleeve, and the intraoral support is disposed in the wrapping groove.

[0016] In this utility model, the silicone sleeve is provided with two mounting holes, through which the upper operating part and the lower operating part pass respectively.

[0017] In this invention, the lower end of the side support rod is provided with a locking protrusion for engaging with the side limiting tooth groove.

[0018] The beneficial effects of this utility model are as follows: This utility model has two side angle fixing structures located on the left and right sides of the tongue and a front angle fixing structure located on the front side of the tongue, respectively, between the upper U-shaped frame and the lower U-shaped frame. This effectively adjusts and fixes the mouth opening angle and range, increases the efficiency and accuracy of imaging, and is particularly beneficial for imaging patients with trauma or limited mobility. It also allows for observation of the cervical spine in the mouth opening position from multiple angles, improving the accuracy of X-ray imaging and diagnosis, while ensuring the uniformity of the imaging position for the same area. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 A three-dimensional view of an intraoral auxiliary mouth-opening device;

[0021] Figure 2 Three-dimensional intraoral stent Figure 1 ;

[0022] Figure 3 Three-dimensional intraoral stent Figure 2 ;

[0023] Figure 4 This is a 3D view of the silicone sleeve. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0025] Reference Figure 1-4 An intraoral auxiliary mouth-opening device for cervical spine mouth-opening position includes an intraoral support 1. The intraoral support 1 includes an upper U-shaped frame 11, a lower U-shaped frame 12, and an elastic deformation part 13. Both the upper U-shaped frame 11 and the lower U-shaped frame 12 are U-shaped, so that the upper U-shaped frame 11 and the lower U-shaped frame 12 are adapted to the upper and lower teeth respectively. The rear ends of the upper U-shaped frame 11 and the lower U-shaped frame 12 are integrally connected by the elastic deformation part 13. Specifically, the left rear end of the upper U-shaped frame 11 and the left rear end of the lower U-shaped frame 12 are integrally connected by the elastic deformation part 13, and the rear ends of the upper U-shaped frame 11 and the left rear end of the lower U-shaped frame 12 are integrally connected by the elastic deformation part 13. The elastic deformation part 13 can deform, so that the opening and closing angle between the upper U-shaped frame 11 and the lower U-shaped frame 12 is adjustable.

[0026] Furthermore, two side angle fixing structures are provided between the upper U-shaped frame 11 and the lower U-shaped frame 12, located on the left and right sides of the tongue respectively, and a front angle fixing structure is located on the front side of the tongue. The side angle fixing structure includes a side fixing groove 121 on the lower U-shaped frame 12 and a side support rod 3 rotatably connected to the upper U-shaped frame 11 via a support rod hinge shaft 2 at its upper end. The side fixing groove 121 is provided with a plurality of side limiting teeth 122 for cooperating with the side support rod 3 to maintain the opening angle of the upper U-shaped frame 11 and the lower U-shaped frame 12. The plurality of side limiting teeth 122 are arranged from front to back. In this embodiment, there are three lateral limiting grooves 122, which correspond to opening and closing angles of 20 degrees, 30 degrees, and 40 degrees, respectively, forming a three-level adjustment function for the opening and closing angle between the upper U-shaped frame 11 and the lower U-shaped frame 12. This allows the patient to adjust to the most suitable position for taking the X-ray according to their own situation, and accurately take an open-mouth X-ray of the cervical spine.

[0027] Furthermore, the lower end of the side support rod 3 is configured to be able to rotate and slide into the side fixing groove 121 and cooperate with the side limiting tooth groove 122 during the opening and closing of the upper U-shaped frame 11 and the lower U-shaped frame 12. The front angle fixing structure includes an upper fixing plate 111 protruding on the upper U-shaped frame 11 and a lower fixing seat 123 protruding on the lower U-shaped frame 12. The upper fixing plate 111 can adjust the length of its overlap with the lower fixing seat 123 as the upper U-shaped frame 11 swings up and down. The upper fixing plate 111 and the lower fixing seat 123 are constrained in relative position by a locking member 4.

[0028] In a preferred embodiment, the upper fixing plate 111 is provided with a locking elongated hole 112 extending from top to bottom, the lower fixing seat 123 is provided with a clearance hole 1231 on the front side for avoiding the locking member 4, and a fixing hole 1232 corresponding to the locking elongated hole 112 on the rear side. The locking member 4 presses against the upper fixing plate 111 and passes through the locking elongated hole 112 and is fixed in the fixing hole 1232, thereby limiting the length of overlap between the upper fixing plate 111 and the lower fixing seat 123.

[0029] In this embodiment, the lower fixing base 123 is provided with a telescopic hole 1233 with an opening at the upper end. The lower end of the upper fixing plate 111 is slidably and telescopically inserted into the telescopic hole 1233. The telescopic hole 1233 is located between the clearance hole 1231 and the fixing hole 1232. Both the clearance hole 1231 and the fixing hole 1232 are connected to the telescopic hole 1233. By sliding the lower end of the upper fixing plate 111 into the telescopic hole 1233, the upper fixing plate 111 and the lower fixing base 123 can be prevented from being misaligned during the opening and closing of the upper U-shaped frame 11 and the lower U-shaped frame 12, which is beneficial for the combination of the upper fixing plate 111 and the lower fixing base 123.

[0030] In this embodiment, the fixing hole 1232 is a screw hole, and the locking member 4 includes a screw part 41, an operating handle 42 integrally formed at one end of the screw part 41, and a pressing head 43 integrally formed at the other end of the screw part 41. The screw part 41 is threaded into the fixing hole 1232. The operating handle 42 is used for medical personnel to operate and rotate the screw part 41. The pressing head 43 is used to extend into the clearance hole 1231 to press the upper fixing plate 111. Tightening the locking member 4 allows the pressing head 43 to press against the front side of the upper fixing plate 111, thereby clamping and fixing the upper fixing plate 111 with the lower fixing seat 123, thus improving the stability of the upper U-shaped frame 11 and the lower U-shaped frame 12 after locking the angle.

[0031] In a preferred embodiment, the upper U-shaped frame 11 has an upper operating part 113 protruding from its front end, and the lower U-shaped frame 12 has a lower operating part 124 protruding from its front end. The upper operating part 113 and the lower operating part 124 facilitate the opening and closing of the upper U-shaped frame 11 and the lower U-shaped frame 12 by medical personnel. Furthermore, the upper surface of the upper operating part 113 and the lower surface of the lower operating part 124 are both recessed with anti-slip grooves to reduce the probability of fingers slipping off the upper operating part 113 and the lower operating part 124 during operation.

[0032] To prevent the intraoral auxiliary mouth opening device from moving further into the oral cavity, the upper end face of the upper U-shaped frame 11 is provided with two moving limiting parts 14 arranged from front to back. A tooth matching groove is formed between the two moving limiting parts 14, and the tooth matching groove can accommodate at least two of the patient's incisors.

[0033] In a preferred embodiment, the intraoral auxiliary mouth-opening device further includes a silicone sleeve 5. The shape of the silicone sleeve 5 is the same as that of the intraoral support 1. The silicone sleeve 5 has a wrapping groove 51, in which the intraoral support 1 and the movable limiting part 14 are both located. The lower surface of the upper U-shaped frame 11, the upper surface of the lower U-shaped frame 12, and the rear surface of the elastic deformation part 13 are not obstructed by the silicone sleeve 5, thereby ensuring the normal use of the side angle fixing structure and the front angle fixing structure. Simultaneously, the silicone sleeve 5 has two mounting holes 52, through which the upper operating part 113 and the lower operating part 124 pass, thus confining the silicone sleeve 5 to the intraoral support 1. The structure is simple and easy to install. The silicone sleeve 5 padding allows the patient's teeth to be more comfortable and not chafed when biting on the device.

[0034] In this embodiment, the bottom of the upper U-shaped frame 11 is provided with two sets of hinge seats, each set of hinge seats corresponding to a side support rod 3. The hinge seat is composed of two protrusions on the hinge portion at the bottom of the upper U-shaped frame 11. The upper end of the side support rod 3 is inserted between the two hinge portions and connected to the two hinge portions by a support rod hinge shaft 2, so that the lower end of the side support rod 3 can rotate back and forth around the hinge seat. In this embodiment, the upper end of the side support rod 3 and the hinge portion are provided with connection holes adapted to the support rod hinge shaft 2, and the support rod hinge shaft 2 is riveted to the hinge seat.

[0035] In this embodiment, the lower end of the side support rod 3 is inclinedly provided with a locking protrusion 31 for engaging with the side limiting tooth groove 122. When the locking protrusion 31 is engaged in the side limiting tooth groove 122, the lower end of the side support rod 3 can only rotate backward without external force intervention, and cannot rotate forward, thereby limiting the angle between the upper U-shaped frame 11 and the lower U-shaped frame 12.

[0036] In a preferred embodiment, the intraoral support 1 and the four locking rods hinge shafts 2 are all made of plastic that does not interfere with X-ray detection, such as polyetheretherketone (PEEK), to reduce the influence of the intraoral auxiliary mouth opening device on X-rays.

[0037] When in use, the patient's incisors are engaged in the matching tooth slots to limit the intraoral assistive mouth opening device from moving further into the oral cavity. The upper U-shaped frame 11 is controlled to open relative to the lower U-shaped frame 12. During this process, the lower end of the side support rod 3 rotates and swings backward under the action of gravity, and the locking protrusion 31 is engaged in one of the side limiting tooth slots 122. After adjusting to the appropriate angle, the locking piece 4 is tightened so that the side angle fixing structure and the front angle fixing structure simultaneously limit the opening and closing angles of the upper U-shaped frame 11 and the lower U-shaped frame 12. The opening and closing angles of the upper U-shaped frame 11 and the lower U-shaped frame 12 are simultaneously limited by the side angle fixing structure and the front angle fixing structure. The side support rod 3 provides most of the support force, while the upper fixing plate 111 and the lower fixing seat 123 provide part of the support force. This achieves dual limitation of the upper U-shaped frame 11 and the lower U-shaped frame 12, effectively ensuring the stability of the upper U-shaped frame 11 and the lower U-shaped frame 12 during use, thereby ensuring the quality of the intraoral auxiliary mouth opening device in assisting the patient to open their mouth.

[0038] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. An intraoral auxiliary opening device for cervical vertebra open mouth position, comprising an intraoral support (1), the intraoral support (1) comprising an upper U-shaped frame (11), a lower U-shaped frame (12) and an elastic deformation part (13); the rear end of the upper U-shaped frame (11) and the rear end of the lower U-shaped frame (12) are integrally connected by the elastic deformation part (13), and the opening and closing angle between the upper U-shaped frame (11) and the lower U-shaped frame (12) is adjustable; characterized in that: two side angle fixing structures located on the left and right sides of the tongue and a front angle fixing structure located on the front side of the tongue are arranged between the upper U-shaped frame (11) and the lower U-shaped frame (12), the side angle fixing structure comprises a side fixing groove (121) arranged on the lower U-shaped frame (12) and a side support rod (3) rotatably connected to the upper U-shaped frame (11) by a support rod hinged shaft (2) at the upper end, and a plurality of side limiting tooth grooves (122) are arranged in the side fixing groove (121); the lower end of the side support rod (3) is configured to rotate and swing in the side fixing groove (121) with the support rod hinged shaft (2) as the rotation center during the opening and closing process of the upper U-shaped frame (11) and the lower U-shaped frame (12), and cooperate with the side limiting tooth grooves (122); The front angle fixing structure comprises an upper fixing plate (111) protruding from the upper U-shaped frame (11) and a lower fixing seat (123) protruding from the lower U-shaped frame (12), and the relative position between the upper fixing plate (111) and the lower fixing seat (123) is constrained by a locking piece (4). The upper fixing plate (111) is provided with a locking long hole (112) extending in length from top to bottom, the front side of the lower fixing seat (123) is provided with an avoiding hole (1231) for avoiding the locking piece (4), and the rear side is provided with a fixing hole (1232) corresponding to the locking long hole (112), and the locking piece (4) is pressed on the upper fixing plate (111) and fixed in the fixing hole (1232) through the locking long hole (112).

2. An intraoral mouth opening aid for use in a neutral position of the cervical spine according to claim 1, characterized in that: The lower fixing seat (123) is provided with an expansion hole (1233) with an open upper end, and the lower end of the upper fixing plate (111) is slidably inserted into the expansion hole (1233), the expansion hole (1233) is located between the avoiding hole (1231) and the fixing hole (1232), and the avoiding hole (1231) and the fixing hole (1232) are both communicated with the expansion hole (1233).

3. An intraoral mouth opening aid for use in a neutral position of the cervical spine according to claim 2, characterized in that: The fixing hole (1232) is a threaded hole, the locking piece (4) comprises a screw rod part (41), an operating handle (42) integrally formed at one end of the screw rod part (41), and a pressing head (43) integrally formed at the other end of the screw rod part (41), and the screw rod part (41) is threadedly connected in the fixing hole (1232); the pressing head (43) is used for extending into the avoiding hole (1231) to press the upper fixing plate (111).

4. The intraoral mouth opening assist device for open mouth position of cervical vertebra according to claim 2 or 3, characterized in that: The front end of the upper U-shaped frame (11) is protrudingly provided with an upper operating part (113), and the front end of the lower U-shaped frame (12) is protrudingly provided with a lower operating part (124).

5. The mouth opening device for open mouth position of cervical vertebra according to claim 1, wherein: ​ 6. An intraoral mouth opening aid for use in a neutral position of the cervical spine according to claim 5, characterized in that: The upper surface of the upper operating part (113) and the lower surface of the lower operating part (124) are concavely provided with anti-skid grooves.

7. The mouth opening device for open mouth position of cervical vertebra according to claim 1, wherein: The upper end surface of the upper U-shaped frame (11) is protrusively provided with two moving limiting parts (14) arranged from front to back, and a tooth matching groove is formed between the two moving limiting parts (14).

8. The mouth opening device for open mouth position of cervical vertebra according to claim 5, wherein: The intraoral auxiliary mouth opening device further comprises a silica gel sleeve (5), the shape of the silica gel sleeve (5) is the same as that of the intraoral support (1), the silica gel sleeve (5) is internally provided with a wrapping groove (51), and the intraoral support (1) is arranged in the wrapping groove (51).

9. An intraoral mouth opening assist device for a neutral position of the cervical spine as claimed in claim 8, wherein: Two mounting perforations (52) are arranged on the silica gel sleeve (5), and the upper operating part (113) and the lower operating part (124) respectively pass through the mounting perforations (52).

10. The mouth opening device for open mouth position of cervical vertebra according to claim 1, wherein: The lower end of the side supporting rod (3) is obliquely provided with a clamping protrusion (31) used for clamping into the side limiting tooth groove (122).

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