Occlusion pad for oral cavity scanning

Abstract

The utility model relates to an occlusal pad for oral cavity scanning, and belongs to the technical field of medical instruments. The occlusal pad comprises an upper occlusal layer, a lower occlusal layer, a stretching layer, moisture absorption layers, a one-way valve and an inflation mechanism, the upper occlusal layer and the lower occlusal layer are sealed through the stretching layer, the space between the upper occlusal layer and the lower occlusal layer is an inflation space, the moisture absorption layers are arranged on the outer sides of the upper occlusal layer and the lower occlusal layer respectively, and the one-way valve is arranged on the inflation space. A one-way valve is arranged on the stretching layer facing the outer side of the oral cavity and connected with an inflation mechanism. The mouth opening distance of upper and lower teeth can be adjusted according to the oral cavity condition of a patient, the comfort level of the patient is improved under the condition that the oral cavity CT shooting is stable, saliva generated in the oral cavity of the patient can be sucked in time, and discomfort of the patient is avoided.

Description

Technical Field

[0001] The utility model relates to a bite pad for oral scanning, belonging to the technical field of medical equipment. Background Art

[0002] Dental implants are becoming increasingly popular among tooth loss restoration options. The accuracy of implant placement directly affects the final positional accuracy of the implanted denture. To achieve the ideal restoration effect, implant guides are required to ensure the position, angle, and depth of the implant. Computer-aided design and manufacturing technology is currently used. This involves reconstructing a three-dimensional model of the jaw using CT images of the patient's maxillofacial area before the implant surgery. The appropriate implant type is selected based on the image data of the jaw. A digital surgical guide is then selected and designed based on information such as the implant's teeth and bone mass, ultimately resulting in an overall implant surgery plan.

[0003] During the image scan, the patient needs to open their mouth to separate their upper and lower teeth. Taking an oral CT scan takes tens of seconds, making it difficult for the patient to remain still for long periods of time. Currently, doctors typically have patients bite cotton rolls, soft pads, or other objects to separate the palate and tongue. However, cotton rolls and soft pads are relatively soft and deform significantly when bitten, resulting in poor separation of the palate and tongue, which can easily lead to poor image quality and ghosting. Chinese patent document CN114931394A discloses a CBCT-assisted scanning bite pad, comprising an occlusal portion comprising an upper occlusal portion and a lower occlusal portion. The upper and lower occlusal portions have a plurality of grooves disposed on their facing surfaces. The grooves, when joined, form a space for accommodating hard round balls, which are evenly distributed within the occlusal portion. While this bite pad can also fill the space between the upper and lower teeth, its opening distance is not adjustable and it does not account for moisture absorption during prolonged occlusion. Therefore, the present invention is proposed. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the utility model provides an oral scanning bite pad, which can adjust the opening distance of the upper and lower teeth according to the patient's oral condition, improve the patient's comfort while ensuring the stability of oral CT shooting, and can promptly absorb the saliva produced in the patient's mouth to avoid discomfort to the patient.

[0005] The technical solution of the utility model is as follows:

[0006] A bite pad for oral scanning comprises an upper bite layer, a lower bite layer, a stretch layer, a hygroscopic layer, a one-way valve and an inflation mechanism, wherein the upper bite layer and the lower bite layer are sealed by the stretch layer, the space between the upper bite layer and the lower bite layer is an inflation space, hygroscopic layers are respectively provided on the outside of the upper bite layer and the lower bite layer, a one-way valve is provided on the stretch layer facing the outside of the oral cavity, and the one-way valve is connected to the inflation mechanism.

[0007] According to the preferred embodiment of the present invention, the inflation mechanism is an air pump or a compressed air bag.

[0008] According to the preferred embodiment of the present invention, the upper occlusal layer and the lower occlusal layer are made of hard plastic, such as polyethylene, and the stretching layer is made of soft plastic, such as polyvinyl chloride (PVC). The stretching layer is used to provide adjustment space for the thickness of the occlusal pad, thereby meeting different upper and lower tooth opening distances. At the same time, the upper and lower occlusal layers are made of hard plastic, which avoids the influence of occlusal deformation on shooting.

[0009] According to the preferred embodiment of the present invention, the moisture absorbing layer is made of a water-absorbing resin, which can fully absorb the saliva produced by the patient opening his mouth, thereby alleviating the patient's discomfort.

[0010] When in use, first connect the one-way valve of the occlusal pad to the external inflation mechanism, then the patient opens the upper and lower teeth, inserts the occlusal pad, and uses the inflation mechanism to inflate it. The thickness of the occlusal pad becomes thicker. The thickness of the occlusal pad is adjusted according to the patient's comfort and shooting requirements, and then the scanning and shooting are carried out. The saliva produced by the patient in the middle is absorbed by the hygroscopic layer.

[0011] The beneficial effects of the present invention are:

[0012] 1. The utility model provides an oral scanning bite pad, which can adjust the opening distance of the upper and lower teeth according to the patient's oral condition, improve the patient's comfort while ensuring the stability of oral CT shooting, and can absorb the saliva produced by the patient's mouth in time to avoid discomfort to the patient.

[0013] 2. The utility model utilizes a stretching layer to provide adjustment space for the thickness of the bite pad, thereby meeting different upper and lower tooth opening distances. At the same time, the upper and lower bite layers are made of hard plastic, which avoids the influence of bite deformation on shooting.

[0014] 3. The inflation mechanism and the bite pad of the utility model are of separate design. The bite pad is a disposable product. The separate design ensures that only the bite pad needs to be replaced, thereby reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the compressed air bag of the utility model;

[0017] Among them, 1. upper bite layer; 2. lower bite layer; 3. stretch layer; 4. moisture absorption layer; 5. one-way valve; 6. trachea; 7. compression airbag. DETAILED DESCRIPTION

[0018] The present invention will be further described below through embodiments and in conjunction with the accompanying drawings, but is not limited thereto.

[0019] Example 1:

[0020] like Figure 1-2 As shown, this embodiment provides an occlusal pad for oral scanning, comprising an upper occlusal layer 1, a lower occlusal layer 2, a stretching layer 3, a hygroscopic layer 4, a one-way valve 5 and an inflation mechanism, wherein the upper occlusal layer 1 and the lower occlusal layer 2 are sealed by the stretching layer 3, the space between the upper occlusal layer 1 and the lower occlusal layer 2 is an inflation space, hygroscopic layers 4 are respectively provided on the outside of the upper occlusal layer 1 and the lower occlusal layer 2, a one-way valve 5 is provided on the stretching layer facing the outside of the oral cavity, and the one-way valve 5 is connected to the inflation mechanism.

[0021] The shape of the bite pad is not limited and can be rectangular, semi-elliptical, etc., as long as it meets the requirements of use.

[0022] The inflation mechanism is a compressed air bag 7 , which is connected to a one-way valve 5 through an air pipe 6 .

[0023] The upper occlusal layer 1 and the lower occlusal layer 2 are made of hard plastic, such as polyethylene, and the stretching layer 3 is made of soft plastic, such as polyvinyl chloride (PVC). The stretching layer provides adjustment space for the thickness of the occlusal pad to meet different upper and lower tooth opening distances. At the same time, the upper and lower occlusal layers are made of hard plastic, which avoids the influence of occlusal deformation on shooting.

[0024] The moisture-absorbing layer 4 is made of a water-absorbing resin, which can fully absorb the saliva produced by the patient opening his mouth, thereby alleviating the patient's discomfort.

[0025] When in use, first connect the one-way valve 5 of the bite pad to the external inflation mechanism, then the patient opens the upper and lower teeth, puts in the bite pad, and uses the inflation mechanism to inflate it. The thickness of the bite pad becomes thicker. The thickness of the bite pad is adjusted according to the patient's comfort and shooting requirements, and then scanning and shooting are carried out. The saliva produced by the patient in the middle is absorbed by the hygroscopic layer.

[0026] Example 2:

[0027] A bite pad for oral scanning has a structure as described in Example 1, except that the inflation mechanism is an air pump connected to a one-way valve via an air pipe.

[0028] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0029] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A bite pad for oral scanning, characterized in that: It includes an upper bite layer, a lower bite layer, a stretch layer, a hygroscopic layer, a one-way valve and an inflation mechanism, wherein the upper bite layer and the lower bite layer are sealed by the stretch layer, the space between the upper bite layer and the lower bite layer is an inflation space, hygroscopic layers are respectively provided on the outside of the upper bite layer and the lower bite layer, a one-way valve is provided on the stretch layer facing the outside of the oral cavity, and the one-way valve is connected to the inflation mechanism.

2. The bite pad for oral scanning according to claim 1, wherein: The inflation mechanism is an air pump or a compressed air bag.

3. The bite pad for oral scanning according to claim 1, wherein: The upper and lower bite layers are made of hard plastic, and the stretching layer is made of soft plastic.

4. The bite pad for oral scanning according to claim 1, wherein: The moisture absorbing layer is made of water absorbing resin.

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