A flexible, buffered oral sampling stent

Abstract

This utility model relates to an elastically cushioned oral sampling holder, belonging to the field of oral medical device technology. It includes a tray wing; a handle; and an elastic buffer component connecting the handle and the tray wing. The elastic buffer component includes a rotating connection mechanism that allows the tray wing to rotate relative to the handle. The elastic buffer component also includes an elastic element that provides elastic cushioning force when the tray wing rotates relative to the handle. This utility model can achieve an elastically cushioned connection between the tray wing and the handle, effectively avoiding localized pressure and discomfort caused by excessive operating force, and improving the comfort and accuracy of impression taking.

Description

Technical Field

[0001] This application relates to the field of oral medical device technology, and in particular to an elastic buffer oral sampling stent. Background Technology

[0002] An impression tray is a specialized tool used in dental clinical procedures to hold impression materials and accurately obtain the morphology of oral soft and hard tissues. In the field of dental restoration, impression taking is a crucial step, and its accuracy directly affects the quality of subsequent restorations and the patient's wearing comfort.

[0003] However, existing dental impression trays typically use a rigid connection between the handle and the tray wings. When the operator inserts the tray coated with impression material into the mouth, to ensure the impression material fully covers all teeth, especially for teeth with slight misalignment, the operator applies slightly higher than average initial force. When the operator applies excessive initial force, the rigid tray directly transmits all the force to the mucosa, easily causing localized pressure and discomfort. Simultaneously, there are stress concentration points at the connection between the handle and the tray wings, and in the transition area between the tray wings and the base plate. When these stress concentration points are subjected to the aforementioned localized pressure, the material at these points deforms. The response is less uniform than in other areas. Specifically, at these stress concentration points, the material's elastic deformation capacity is limited, causing the outward tilt angle of the tray wings to be insufficient to fully adapt to the local protrusions of the alveolar mucosa due to the small deformations in these local areas. This type of fixed rigid tray is suitable for scenarios where the oral cavity morphology is relatively standard, the operator is experienced, and the requirements for impression accuracy are not so extreme. However, in scenarios where it is necessary to deal with lingual misaligned teeth, which have particularly high requirements for impression accuracy and where the patient's oral physiological structure is complex and variable, the limitations of the fixed rigid tray become apparent. It is easy to cause inaccurate identification of local pressure and untimely warnings, ultimately affecting the quality of the impression.

[0004] Therefore, existing technologies need to be improved and developed. Utility Model Content

[0005] This application provides an elastic buffered oral sampling holder to improve the technical problems in related technologies, such as the rigid connection of the oral impression tray causing local pressure discomfort, stress concentration and limited impression accuracy during operation.

[0006] This application provides an elastically cushioned oral sampling holder, including: a tray wing; Handle; and An elastic buffer element that connects the handle to the tray wing; The resilient buffer includes a rotatable connection mechanism that allows the tray wing to rotate relative to the handle; The resilient buffer also includes an elastic element that provides resilient cushioning force when the tray wing rotates relative to the handle.

[0007] The technical solutions described above in this application embodiment have at least the following technical effects: they can achieve an elastic buffer connection between the tray wing and the handle, effectively avoiding local pressure and discomfort caused by excessive operating force, and improving the comfort and accuracy of impression making.

[0008] In this embodiment, the rotating connection mechanism includes a ball head and a ball head seat that rotates with the ball head; the elastic element is a buffer spring, one end of which is connected to the ball head.

[0009] This technical solution provides a specific method for achieving rotational connection and elastic buffering, which is compact in structure and reliable in function.

[0010] In this embodiment, the elastic buffer also includes a connecting housing and a connecting rod; the handle is connected to the connecting housing, and the tray wing is connected to the connecting rod.

[0011] This technical solution provides external protection and internal connection support for the elastic buffer, enhancing the stability and durability of the overall structure.

[0012] In this embodiment, the ball joint is disposed inside the connecting housing, and the ball joint is connected to the connecting rod.

[0013] This technical solution allows for the clever integration of the ball head and ball joint into the connecting housing and connecting rod, further optimizing the structure and reducing external interference.

[0014] In this embodiment, the buffer spring is disposed inside the connecting housing, and the other end of the buffer spring is connected to the inner wall of the connecting housing.

[0015] This technical solution allows the buffer spring to be safely housed inside the connecting housing, preventing external damage and providing stable elastic support.

[0016] In this embodiment, a connecting hole is provided on the ball joint, and one end of the buffer spring passes through the connecting hole and is connected to the ball joint.

[0017] This technical solution enables precise connection between the buffer spring and the ball head, ensuring effective transmission of elastic force.

[0018] In this embodiment, the tray wing is provided with a plurality of rear-side retaining holes.

[0019] This technical solution enhances the retention of the impression material on the tray wings, preventing the impression material from shifting during operation.

[0020] In this embodiment, the rear retaining hole is a frustum-shaped structure that is wider at the top and narrower at the bottom.

[0021] This technical solution can further optimize the structure of the retention holes and improve the retention strength and stability of the impression material.

[0022] In this embodiment, the tray wing is also provided with a plurality of front retaining holes.

[0023] This technical solution can comprehensively enhance the retention capability of the tray wings for the printing material, adapting to the printing needs of different areas.

[0024] In this embodiment, the distribution density of the front retaining holes is greater than that of the rear retaining holes.

[0025] This technical solution enables more refined retention designs based on the impression requirements of different areas of the oral cavity, thereby improving the overall accuracy of the impression.

[0026] Beneficial effects This invention incorporates an elastic buffer between the handle and the tray wings. This buffer includes a rotating connection mechanism and an elastic element, allowing the tray wings to rotate relative to the handle and providing elastic cushioning during rotation. When the operator applies initial force, the elastic buffer absorbs some of the impact force, preventing all force from being directly transmitted to the oral mucosa, thus significantly reducing local pressure and discomfort. The presence of the elastic buffer allows the tray wings to fine-tune according to the actual shape of the oral cavity when entering the mouth, better adapting to local protrusions of the alveolar mucosa. This is especially beneficial when dealing with complex situations such as lingual misaligned teeth, providing more precise impression adaptation. Attached Figure Description

[0027] Figure 1 A three-dimensional structural diagram of the elastic buffered oral sampling stent provided in the embodiments of this application; Figure 2 A three-dimensional structural diagram of the handle and elastic buffer provided in the embodiments of this application; Figure 3 A cross-sectional structural schematic diagram of the elastic buffer provided in the embodiments of this application; Figure 4 A three-dimensional structural diagram of the pallet wing and a cross-sectional structural diagram along AA are provided for embodiments of this application.

[0028] The following are the labeling elements in the figure: 1. Tray wing; 11. Handle; 12. Rear retaining hole; 13. Front retaining hole; 2. Elastic buffer; 21. Ball head seat; 22. Ball head; 23. Connecting hole; 24. Buffer spring; 25. Connecting housing; 26. Connecting rod. Detailed Implementation

[0029] However, existing dental impression trays typically use a rigid connection between the handle and the tray wings. When the operator inserts the tray coated with impression material into the mouth, to ensure the impression material fully covers all teeth, especially for teeth with slight misalignment, the operator applies slightly higher than average initial force. When the operator applies excessive initial force, the rigid tray directly transmits all the force to the mucosa, easily causing localized pressure and discomfort. Simultaneously, there are stress concentration points at the connection between the handle and the tray wings, and in the transition area between the tray wings and the base plate. When these stress concentration points are subjected to the aforementioned localized pressure, the material at these points deforms. The response is less uniform than in other areas. Specifically, at these stress concentration points, the material's elastic deformation capacity is limited, causing the outward tilt angle of the tray wings to be insufficient to fully adapt to the local protrusions of the alveolar mucosa due to the small deformations in these local areas. This type of fixed rigid tray is suitable for scenarios where the oral cavity morphology is relatively standard, the operator is experienced, and the requirements for impression accuracy are not so extreme. However, in scenarios where it is necessary to deal with lingual misaligned teeth, which have particularly high requirements for impression accuracy and where the patient's oral physiological structure is complex and variable, the limitations of the fixed rigid tray become apparent. It is easy to cause inaccurate identification of local pressure and untimely warnings, ultimately affecting the quality of the impression.

[0030] Based on this, in order to improve the technical problems in the related technology where the rigid connection of the dental impression tray easily causes local pressure discomfort, stress concentration and limited impression accuracy during operation, the embodiments of this application provide the following solutions.

[0031] Please refer to the following: Figures 1 to 4 This application provides an elastic buffer oral sampling holder, which includes: a tray wing 1; Handle 11; and Elastic buffer 2, which connects the handle 11 and the tray wing 1; The elastic buffer 2 includes a rotating connection mechanism that allows the tray wing 1 to rotate relative to the handle 11; The elastic buffer 2 also includes an elastic element that provides elastic cushioning force when the tray wing 1 rotates relative to the handle 11.

[0032] The elastically cushioned oral sampling holder provided in this application includes an elastic buffer 2 comprising a rotating connection mechanism and an elastic element. The rotating connection mechanism allows the tray wing 1 to rotate relative to the handle 11, thereby providing flexibility during the impression process. This rotation can be multi-directional, allowing the tray wing 1 to be finely adjusted at different angles to better adapt to the complex curvature of the oral cavity. The elastic element provides elastic cushioning force when the tray wing 1 rotates relative to the handle 11. This elastic cushioning force can absorb the impact force generated during operation, avoid the instantaneous accumulation of local pressure, and ensure that the tray wing 1 can return to its initial position after being subjected to force, thereby ensuring the repeatability and stability of the impression.

[0033] In this embodiment, the rotating connection mechanism includes a ball head 22 and a ball head seat 21 that rotates with the ball head 22; the elastic element is a buffer spring 24, one end of which is connected to the ball head 22.

[0034] This configuration, through the introduction of a rotating connection mechanism consisting of ball head 22 and ball head seat 21, allows the tray wing 1 to rotate relative to the handle 11 in a flexible and stable manner. Simultaneously, the buffer spring 24, acting as an elastic element, is connected at one end to the ball head 22, enabling it to be effectively stretched or compressed during tray wing 1 rotation, thus providing continuous and controllable elastic cushioning force. This design not only clarifies the internal structure of the elastic buffer element 2 but also, through the rotational engagement of the ball head 22 and ball head seat 21 and the elastic action of the buffer spring 24, jointly solves the problem of flexible rotation and cushioning between the tray wing 1 and the handle 11 during impression making, avoiding patient discomfort or impression failure that might result from a rigid connection.

[0035] In this embodiment, the elastic buffer 2 further includes a connecting housing 25 and a connecting rod 26; the handle 11 is connected to the connecting housing 25, and the tray wing 1 is connected to the connecting rod 26.

[0036] This configuration, through the introduction of the connecting housing 25 and the connecting rod 26, connects the handle 11 to the connecting housing 25 and the tray wing 1 to the connecting rod 26. Thus, the internal components of the elastic buffer 2 are effectively integrated inside the connecting housing 25, preventing direct exposure of internal precision parts, reducing the risk of wear and damage, and extending service life. Simultaneously, the introduction of the connecting housing 25 and the connecting rod 26 makes the connection between the elastic buffer 2 and the handle 11 and the tray wing 1 more stable and reliable, reducing the possibility of loosening or detachment, and improving the overall structural strength and operational stability of the impression tray.

[0037] In this embodiment, the ball head seat 21 is disposed inside the connecting housing 25, and the ball head 22 is connected to the connecting rod 26.

[0038] This design allows the ball head seat 21 and ball head 22 to be cleverly integrated into the connecting housing 25 and connecting rod 26, further optimizing the structure and reducing external interference.

[0039] In this embodiment, the buffer spring 24 is disposed inside the connecting housing 25, and the other end of the buffer spring 24 is connected to the inner wall of the connecting housing 25.

[0040] This design allows the buffer spring 24 to be safely housed inside the connecting housing 25, preventing external damage and providing stable elastic support.

[0041] In this embodiment, the ball head seat 21 is provided with a connecting hole 23, and one end of the buffer spring 24 passes through the connecting hole 23 and is connected to the ball head 22.

[0042] This design, by creating a connecting hole 23 on the ball head seat 21, allows the buffer spring 24 to directly pass through the connecting hole 23 and connect to the ball head 22, thereby shortening the connection path of the buffer spring 24, reducing losses in intermediate links, and improving the buffering effect. Furthermore, this connection method also makes the overall structure more compact, reducing the volume of the elastic buffer 2, and facilitating the use and operation of the dental impression tray.

[0043] In this embodiment, the tray wing 1 is provided with a plurality of rear retaining holes 12.

[0044] This design enhances the retention of the impression material on the tray wing 1, preventing the impression material from shifting during operation.

[0045] In this embodiment, the rear retaining hole 12 is a frustum-shaped structure that is wider at the top and narrower at the bottom.

[0046] This design can further optimize the structure of the retention holes and improve the retention strength and stability of the impression material.

[0047] In this embodiment, the tray wing 1 is also provided with a plurality of front retaining holes 13.

[0048] This design enhances the ability of the tray wing 1 to retain the printing material, adapting to the printing needs of different areas.

[0049] In this embodiment, the distribution density of the front retaining hole 13 is greater than that of the rear retaining hole 12.

[0050] This design allows for more refined retention design based on the impression requirements of different areas of the oral cavity, thereby improving the overall accuracy of the impression.

[0051] The working principle of the elastic buffer oral sampling holder provided in this application embodiment is as follows: During the use of the elastic buffer oral sampling holder, when the tray wing 1 coated with impression material is first inserted into the oral cavity, the operator applies an initial force slightly higher than average. Through the rotation between the ball head 22 and the ball head seat 21 between the handle 11 and the tray wing 1, the tray wing 1 is allowed to have a certain degree of localized micro-movement when subjected to the initial force applied by the operator, instead of transmitting all the force directly to the mucosa. During the rotation of the ball head 22, the buffer spring 2 at the center point of the connection hole 23 at the tail of the ball head 22, which is opened through the ball head seat 21, connects to the center point of the connecting shell 25. 4. Due to the tension generated by the rotation of the ball head 22, when subjected to the initial force applied by the operator, the buffer spring 24 can produce an elastic deformation of 1-2 mm, thereby absorbing part of the impact force, avoiding the instantaneous accumulation of local pressure, reducing the structural rigidity of the handle 11 connection, and allowing the pressure to be more evenly distributed on the entire tray wing 1, thereby reducing the concentration of local pressure and making the force transmitted to the tray wing 1 and the oral mucosa more gentle, avoiding the instantaneous surge of local pressure; at the same time, the buffer spring 24 also has a certain restoring force. When used repeatedly, the restoring force can maintain the stability of the tray structure, ensure the consistency of positioning for each mold taking, and improve the repeatability of the impression.

[0052] The tray wing 1 contains anterior retention holes 13 and posterior retention holes 12. The anterior retention holes 13 are more densely packed than the posterior retention holes 12, which is beneficial for the open space in the anterior tooth area where the teeth are relatively sparse. More holes allow for more mechanical interlocking points, improving the connection between the impression material and the tray and compensating for the lower force on the anterior tray. On the other hand, due to the narrow space and dense tooth arrangement in the posterior molar area, too many holes in the posterior retention holes 12 would reduce the rigidity of the tray and may also affect the fit with oral tissues. The posterior molars experience greater chewing force, and the impression relies on the stability of the tray itself. Fewer holes ensure the strength of the tray and prevent deformation. Meanwhile, the rear retention hole 12 is a frustum shape, wider at the top and narrower at the bottom. The wider opening at the top allows more impression material to be embedded, while the narrower diameter at the bottom forms a hook-like structure, making the connection between the impression material and the tray more secure after solidification, preventing it from falling off during impression removal. The tray in the molar area needs to withstand biting forces. The frustum shape, wider at the top and narrower at the bottom, requires less cutting of the tray body compared to a round hole of equal width at the top and bottom, retaining more material and maintaining the rigidity of the tray. The space in the molar area is narrow. The wider opening at the top facilitates the rapid flow of impression material and the expulsion of air, reducing air bubbles. The narrower design at the bottom prevents excessive material penetration and ensures the clarity of the impression edges. Finally, the smooth inner wall of the frustum shape and its inclined angle make it easier for residual impression material to fall off during subsequent tray cleaning, reducing the difficulty of cleaning.

[0053] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An elastic cushioned mouth swab holder, characterized by, include: Tray wing (1); Handle (11); and An elastic buffer (2) is provided, which connects the handle (11) to the tray wing (1). The elastic buffer (2) includes a rotating connection mechanism that allows the tray wing (1) to rotate relative to the handle (11); The elastic buffer (2) also includes an elastic element that provides elastic cushioning force when the tray wing (1) rotates relative to the handle (11).

2. The elastomeric cushioned mouth speculum holder of claim 1, wherein, The rotating connection mechanism includes a ball head (22) and a ball head seat (21) that rotates with the ball head (22); the elastic element is a buffer spring (24), one end of which is connected to the ball head (22).

3. The elastomeric cushioned mouth speculum holder of claim 2, wherein, The elastic buffer (2) also includes a connecting shell (25) and a connecting rod (26); the handle (11) is connected to the connecting shell (25), and the tray wing (1) is connected to the connecting rod (26).

4. The elastomeric bumpered mouth speculum of claim 3, wherein, The ball head seat (21) is disposed inside the connecting housing (25), and the ball head (22) is connected to the connecting rod (26).

5. The elastomeric bumpered mouth speculum of claim 4, wherein, The buffer spring (24) is disposed inside the connecting housing (25), and the other end of the buffer spring (24) is connected to the inner wall of the connecting housing (25).

6. The elastomeric bumpered mouth speculum of claim 5, wherein, The ball head seat (21) has a connecting hole (23), and one end of the buffer spring (24) passes through the connecting hole (23) and connects to the ball head (22).

7. The elastomeric bumpered mouth speculum of claim 1, wherein, The tray wing (1) has multiple rear-side retaining holes (12).

8. The elastomeric bumpered mouth speculum of claim 7, wherein, The rear retaining hole (12) is a frustum-shaped structure that is wider at the top and narrower at the bottom.

9. The elastomeric bumpered mouth speculum of claim 7, wherein, The tray wing (1) is also provided with a number of front retaining holes (13).

10. The elastomeric bumpered mouth speculum of claim 9, wherein, The distribution density of the front retaining holes (13) is greater than that of the rear retaining holes (12).

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