Saliva suction device for oral cavity diagnosis and treatment

By setting up a double filter in the saliva suction device for filtering, the problem of debris and impurities entering the waterway pipeline of the dental chair is solved, and the effect of reducing the maintenance cost of the dental chair is achieved.

CN223299194UActive Publication Date: 2025-09-05BEIJING HOSPITAL OF INTEGRATED TRADITIONAL CHINESE & WESTERN MEDICINE (BEIJING UNIV OF CHINESE MEDICINE AFFILIATED HOSPITAL OF INTEGRATED TRADITIONAL CHINESE & WESTERN MEDICINE)
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Patent Information

Application Number
CN202422428912.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-09-05
Estimated Expiration
2034-10-09

AI Technical Summary

Technical Problem

The existing saliva suction device easily sucks debris and impurities in the oral cavity when sucking saliva, resulting in blockage of the waterway of the dental chair and increasing the cost of use and maintenance of the hospital.

Method used

The saliva suction device is equipped with a first filter and a second filter for double filtration, the first filter is performed for primary filtration, and the second filter is performed for secondary filtration, and filter pore designs with different pore sizes are respectively used to filter debris and impurities in the saliva.

Benefits of technology

Effectively filter debris and impurities in saliva, prevent the water pipes of the dental chairs from being blocked, and reduce the cost of using and maintaining the dental chairs.

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Abstract

The present disclosure relates to a saliva aspiration device for oral diagnosis and treatment, the saliva aspiration device comprising: a tubular body defining a lumen and comprising a flexible portion; a tip coupled to the distal end of the tubular body and configured to draw liquid within the oral cavity of a patient; the first filter screen is arranged in the inner cavity and located between the suction head and the flexible part, and the first filter screen is configured to be used for conducting primary filtering on sucked liquid; the second filter screen is arranged in the inner cavity and located between the flexible part and the near side end of the tubular body, and the second filter screen is configured to be used for conducting secondary filtering on sucked liquid.
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Description

Technical Field

[0001] The present disclosure relates to the field of oral medical instruments, and more particularly to a saliva suction device for oral diagnosis and treatment. Background Art

[0002] As a common oral medical device, the saliva suction device can promptly absorb liquids (such as saliva and water spray) in the patient's mouth. When the doctor performs oral treatment or diagnosis on the patient, the patient's mouth is stimulated by the instrument and will secrete more saliva. Moreover, during the treatment or diagnosis process, in order to avoid damage to the oral cavity caused by high temperature generated by the grinding and cutting of the instrument, the doctor needs to spray water into the mouth at regular intervals to cool the tooth. Therefore, more and more liquid will accumulate in the mouth. By using a saliva suction device to promptly absorb the retained liquid in the mouth, it can help keep the doctor's operating field clear.

[0003] Existing saliva suction devices have a relatively simple structure and are prone to sucking in oral debris and impurities during saliva extraction. Since the debris and impurities generated in the patient's mouth during treatment or diagnosis can be large, once these debris and impurities, along with the remaining oral fluid, are sucked into the dental chair's water pipes by the saliva suction device, they can easily cause blockage in the pipes, increasing the hospital's operating and maintenance costs for the dental chair. Utility Model Content

[0004] In response to the above-mentioned problems existing in the prior art, the present disclosure provides a saliva suction device for oral diagnosis and treatment. By arranging a first filter net and a second filter net in the tubular body for double filtration, it can effectively filter debris and impurities in the saliva to prevent clogging of the dental chair water pipe, thereby reducing the use and maintenance costs of the dental chair.

[0005] According to one aspect of the present disclosure, a saliva suction device for oral diagnosis and treatment is provided, the saliva suction device comprising:

[0006] a tubular body defining an interior lumen and including a flexible portion;

[0007] a suction tip coupled to the distal end of the tubular body and configured to aspirate liquid from a patient's oral cavity;

[0008] a first filter disposed in the inner cavity and between the suction head and the flexible portion, the first filter configured to perform a primary filtration on the sucked liquid; and

[0009] The second filter is disposed in the inner cavity and between the flexible portion and the proximal end of the tubular body, and the second filter is configured to perform secondary filtration on the sucked liquid.

[0010] In one embodiment of the saliva suction device, the pore size of the filter holes of the first filter mesh is larger than the pore size of the filter holes of the second filter mesh.

[0011] In one embodiment of the saliva suction device, the first filter screen is arranged perpendicular to the side wall of the tubular body.

[0012] In one embodiment of the saliva suction device, the first filter screen is tilted at an acute angle relative to a side wall of the tubular body.

[0013] In one embodiment of the saliva suction device, the angle formed by the first filter relative to the side wall of the tubular body is between 30° and 60°.

[0014] In one embodiment of the saliva aspiration device, the first filter screen includes a first filter screen portion and a second filter screen portion, the first filter screen portion is close to the distal end of the tubular body, the second filter screen portion is close to the proximal end of the tubular body, and the pore size of the filter holes of the first filter screen portion is larger than the pore size of the filter holes of the second filter screen portion.

[0015] In one embodiment of the saliva suction device, the second filter screen is arranged perpendicular to the side wall of the tubular body.

[0016] In one embodiment of the saliva suction device, the second filter screen is tilted at an acute angle relative to the side wall of the tubular body.

[0017] In one embodiment of the saliva suction device, the angle formed by the second filter relative to the side wall of the tubular body is between 30° and 60°.

[0018] In one embodiment of the saliva aspiration device, the second filter screen includes a third filter screen portion and a fourth filter screen portion, the third filter screen portion is close to the distal end of the tubular body, the fourth filter screen portion is close to the proximal end of the tubular body, and the pore size of the filter holes of the third filter screen portion is larger than the pore size of the filter holes of the fourth filter screen portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Various objects, features, and advantages of the present disclosure will become more apparent upon consideration of the following description of preferred embodiments of the present disclosure in conjunction with the accompanying drawings. The accompanying drawings are merely illustrative illustrations of the present disclosure and are not necessarily drawn to scale. In the drawings, like reference numerals designate identical or similar parts throughout.

[0020] Figure 1 FIG. 1 is an overall schematic diagram of a saliva suction device according to a first embodiment of the present disclosure.

[0021] Figure 2 FIG. 1 is a schematic diagram of a stretched saliva suction device according to the first embodiment of the present disclosure.

[0022] Figure 3 FIG. 4 is an overall schematic diagram of a saliva suction device according to a second embodiment of the present disclosure.

[0023] Figure 4 FIG. 4 is a schematic diagram of a filter in a saliva suction device according to a second embodiment of the present disclosure. DETAILED DESCRIPTION

[0024] The present disclosure will be described below with reference to the accompanying drawings, wherein the accompanying drawings illustrate preferred embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in a variety of different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present disclosure more complete and to fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the technical features in the embodiments disclosed herein can be combined in various ways to provide more additional embodiments. Those skilled in the art may appropriately modify the detailed configuration without departing from the scope of the present disclosure.

[0025] It should be understood that like reference numerals refer to like elements throughout the drawings. In the drawings, the dimensions of some features may be distorted for clarity.

[0026] An embodiment of a saliva suction device for oral diagnosis and treatment disclosed herein is described in detail with reference to the accompanying drawings, wherein similar reference numerals indicate identical or corresponding components in the various drawings. As used in the art, the term "distal" refers to a position on the side farther from the user of the device, while the term "proximal" refers to a position on the side closer to the user of the device. In addition, all spatial reference terms (e.g., horizontal, vertical, top, upper, lower, bottom, left and right, etc.) are for illustrative purposes only and may vary within the scope of the present disclosure.

[0027] Unless otherwise specified, the terms used herein (including technical and scientific terms) shall have the meanings that are commonly understood by those of ordinary skill in the art to which this disclosure relates. Unless otherwise specified, the terms "include" and "comprising" as used in the specification and claims shall be interpreted as open-ended, that is, "include" and "comprising" shall be interpreted as synonymous with the terms "include at least" or "include at least."

[0028] Unless otherwise specified, the terms "first," "second," and the like used in this disclosure are used to distinguish different elements in terms of title, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any and all combinations of one or more of the associated listed terms.

[0029] It should be understood that the terms used in the specification are only used to describe specific embodiments and are not intended to limit the present disclosure. For the sake of brevity and / or clarity, well-known functions or structures may not be described in detail.

[0030] In view of the above-mentioned defects in the prior art, the present disclosure provides a saliva suction device for oral diagnosis and treatment. The embodiments for implementing the present disclosure will be described in detail below with reference to the accompanying drawings.

[0031] First embodiment

[0032] Figure 1 FIG. 1 is an overall schematic diagram of a saliva suction device according to a first embodiment of the present disclosure.

[0033] Figure 2 FIG is a schematic diagram of a stretched saliva suction device according to the first embodiment of the present disclosure. Figure 1 As shown, the saliva suction device for oral diagnosis and treatment includes a suction tip 1 and a tubular body 2. The suction tip 1 is coupled to the distal end of the tubular body 2 and is configured to aspirate fluid from a patient's oral cavity. Specifically, the suction tip 1 is provided with one or more through-holes that communicate with the inner cavity defined by the tubular body 2. During clinical operation, a physician places the suction tip 1 on a saliva collection area in the oral cavity to aspirate the remaining fluid.

[0034] The tubular body 2 defines an inner cavity and includes a flexible portion 3. Figure 2 As shown, the flexible portion 3 can be extended and bent during clinical operation. During clinical operation, the doctor can place the suction tip 1 in a suitable operating position by controlling the extension length and bending direction of the flexible portion 3, and the suction tip 1 is unlikely to move in the oral cavity due to the resilience of the tubular body 2.

[0035] like Figure 1As shown, the saliva suction device for oral diagnosis and treatment further includes a first filter 4 and a second filter 5. Both the first filter 4 and the second filter 5 are disposed within the inner cavity defined by the tubular body 2. The first filter 4 is located between the suction head 1 and the flexible portion 3 and is configured to perform a primary filtration of the sucked liquid. The second filter 5 is located between the flexible portion 3 and the proximal end of the tubular body 2 and is configured to perform a secondary filtration of the sucked liquid.

[0036] Preferably, the pore size of the filter holes of the first filter 4 is larger than the pore size of the filter holes of the second filter 5. The saliva sucked by the saliva suction device enters the inner cavity of the tubular body 2, is first filtered through the first filter 4, and then filtered twice through the second filter 5. The pore size of the filter holes of the first filter 4 is set to block relatively large debris and impurities in a manner that does not affect the efficiency of sucking saliva. The pore size of the filter holes of the second filter 5 is set to be smaller than the pore size of the filter holes of the first filter 4, thereby blocking relatively small residues. For example, the pore size of the filter holes of the first filter 4 can be set to 0.8mm to 1.0mm. The pore size of the filter holes of the second filter 5 can be set to 0.3mm to 0.5mm.

[0037] In addition, if Figure 1 As shown, the first filter screen 4 can be arranged perpendicular to the sidewall of the tubular body 2. In other words, the first filter screen 4 can be arranged perpendicular to the longitudinal axis of the tubular body 2. In addition, the second filter screen 5 can be arranged perpendicular to the sidewall of the tubular body 2. In other words, the second filter screen 5 can be arranged perpendicular to the longitudinal axis of the tubular body 2.

[0038] Furthermore, if Figure 1 As shown, the saliva suction device used for oral diagnosis and treatment can also include a mouth corner hook 6. During clinical use, the doctor inserts the proximal end of the tubular body 2 of the saliva suction device into the water pipe of the dental chair, then stretches the flexible part 3 of the tubular body 2 to an appropriate length, and adjusts the direction of the suction head 1 so that it is close to the operating area in the patient's mouth. After that, the doctor first fixes the saliva suction device at the appropriate position of the patient's mouth corner hook 6, and then adjusts the length and direction by stretching the flexible part 3, thereby placing the suction head 1 in the operating area in the patient's mouth. The mouth corner hook 6 can be made of hard rubber material to increase comfort while ensuring a certain strength. During clinical operation, the doctor can hang the saliva suction device on the patient's mouth corner through the mouth corner hook 6, which is not only simple to operate and easy to fix, but also not easy to slip off.

[0039] As described above, in the first embodiment, by arranging the first filter 4 and the second filter 5 in the tubular body 2 for double filtration, debris and impurities in the saliva can be effectively filtered to prevent clogging of the dental chair water pipe, thereby reducing the use and maintenance costs of the dental chair.

[0040] Second embodiment

[0041] Figure 3 FIG. 4 is an overall schematic diagram of a saliva suction device according to a second embodiment of the present disclosure. Figure 4 Schematic diagram of a filter in a saliva suction device according to a second embodiment of the present disclosure. In Embodiment 2, the structure and operation different from those of the above-mentioned Embodiment 1 will be mainly described, and components with the same structure and function will be given the same reference numerals, and their detailed description will be omitted.

[0042] like Figure 3 As shown, compared with the embodiment 1, the main difference of the saliva suction device according to the second embodiment of the present disclosure is that the second filter 5 is tilted in a manner that forms an acute angle with respect to the side wall of the tubular body 2. Figure 3 In the illustrated saliva suction device, the first filter 4 is still positioned perpendicular to the sidewall of the tubular body 2. However, those skilled in the art will appreciate that the first filter and / or the second filter can be tilted at an acute angle relative to the sidewall of the tubular body 2. Preferably, the angle formed by the first filter and / or the second filter relative to the sidewall of the tubular body 2 is between 30° and 60°. By tilting the first filter and / or the second filter at an acute angle relative to the sidewall of the tubular body 2, relatively large debris and impurities generated during oral care can be effectively filtered and temporarily stored, and premature clogging of the first filter and / or the second filter can be avoided.

[0043] like Figure 4 As shown, compared with the embodiment 1, another difference of the saliva suction device according to the second embodiment of the present disclosure is that the second filter 5 can be preferably configured to include two parts with filter holes of different pore sizes. Figure 4 The second filter screen 5 is shown to include two parts with filter holes of different diameters, but those skilled in the art will appreciate that the first filter screen and / or the second filter screen may be configured to include two parts with filter holes of different diameters. Figure 3 and Figure 4As shown, the first filter 4 may include a first filter portion and a second filter portion, wherein the first filter portion is located near the distal end of the tubular body 2, the second filter portion is located near the proximal end of the tubular body 2, and the pore size of the filter holes in the first filter portion is larger than the pore size of the filter holes in the second filter portion. Furthermore, the second filter 5 may include a third filter portion and a fourth filter portion, wherein the third filter portion is located near the distal end of the tubular body 2, the fourth filter portion is located near the proximal end of the tubular body 2, and the pore size of the filter holes in the third filter portion is larger than the pore size of the filter holes in the fourth filter portion. For example, the pore size of the filter holes in the first filter portion of the first filter 4 may be set to 0.8 mm to 1.0 mm, and the pore size of the filter holes in the second filter portion of the first filter 4 may be set to 0.6 mm to 0.8 mm. The pore size of the filter holes of the third filter mesh portion of the second filter mesh 5 may be set to 0.4 mm to 0.6 mm, and the pore size of the filter holes of the fourth filter mesh portion of the second filter mesh 5 may be set to 0.3 mm to 0.4 mm.

[0044] By configuring the first filter and / or the second filter to include two portions with different filter pore sizes, the larger pore size portion of the filter ensures that saliva extraction efficiency is not affected, while the smaller pore size portion of the filter can be used to intercept and temporarily store filtered material. This further improves the filtration efficiency of the first filter and / or the second filter, and prevents premature clogging of the first filter and / or the second filter.

[0045] Although the present disclosure has been described with reference to exemplary embodiments, it should be understood that the present disclosure is not limited to the exemplary embodiments described above. Various variations and modifications may be made to the exemplary embodiments described above without departing from the scope of the present disclosure. The scope of the appended claims should be accorded the broadest interpretation so as to encompass all such variations and modifications and equivalent structures and functions.

Claims

1. A saliva suction device for oral diagnosis and treatment, characterized in that: The saliva suction device comprises: a tubular body defining an interior lumen and including a flexible portion; a suction tip coupled to the distal end of the tubular body and configured to aspirate liquid from a patient's oral cavity; a first filter disposed in the inner cavity and between the suction head and the flexible portion, the first filter configured to perform a primary filtration on the sucked liquid; and The second filter is disposed in the inner cavity and between the flexible portion and the proximal end of the tubular body, and the second filter is configured to perform secondary filtration on the sucked liquid.

2. The saliva suction device according to claim 1, characterized in that The pore size of the filtering holes of the first filter net is larger than the pore size of the filtering holes of the second filter net.

3. The saliva suction device according to claim 2, characterized in that: The first filter screen is arranged perpendicular to the side wall of the tubular body.

4. The saliva suction device according to claim 2, characterized in that: The first filter screen is disposed obliquely at an acute angle relative to a side wall of the tubular body.

5. The saliva suction device according to claim 4, characterized in that: The angle formed by the first filter screen relative to the side wall of the tubular body is between 30° and 60°.

6. The saliva suction device according to claim 5, characterized in that: The first filter screen includes a first filter screen portion and a second filter screen portion, the first filter screen portion is close to the distal end of the tubular body, the second filter screen portion is close to the proximal end of the tubular body, and the aperture of the filter holes of the first filter screen portion is larger than the aperture of the filter holes of the second filter screen portion.

7. The saliva suction device according to any one of claims 1 to 6, characterized in that: The second filter screen is arranged perpendicular to the side wall of the tubular body.

8. The saliva suction device according to any one of claims 1 to 6, characterized in that: The second filter screen is disposed obliquely at an acute angle relative to a side wall of the tubular body.

9. The saliva suction device according to claim 8, characterized in that: The angle formed by the second filter screen relative to the side wall of the tubular body is between 30° and 60°.

10. The saliva suction device according to claim 9, characterized in that: The second filter screen includes a third filter screen portion and a fourth filter screen portion, the third filter screen portion is close to the distal end of the tubular body, the fourth filter screen portion is close to the proximal end of the tubular body, and the aperture of the filter holes of the third filter screen portion is larger than the aperture of the filter holes of the fourth filter screen portion.