Suction device with surrounding suction function
By designing a suction device with a surround suction function, the problems of inconvenient operation and high manpower load in the existing technology are solved. It achieves the effect of large-area suction of aerosols and liquids, while protecting the patient's oral mucosa, and is suitable for oral treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN UNIV
- Filing Date
- 2025-03-10
- Publication Date
- 2026-04-24
AI Technical Summary
The single-headed saliva suction tubes currently used in oral treatment are inconvenient to operate, have a limited suction range, and allow patients' saliva and other liquids to easily leak out. Furthermore, the four-handed operation results in a heavy workload and cannot effectively protect dentists from aerosol contamination.
Design a suction device with circumferential suction function, including an outer ring, an inner tube, and a connecting ring. It is made of flexible material. The inner tube has suction holes. It is fixedly connected to the outer ring and the inner tube through the connecting ring to realize circumferential suction of aerosols and liquids. Combined with the mouth-widening function, it protects the patient's oral mucosa.
It achieves wide-range aerosol and liquid absorption, protects the patient's oral mucosa, reduces manpower requirements, provides good visibility, and is suitable for single use.
Smart Images

Figure CN224155820U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, and specifically relates to a suction device with a circumferential suction function. Background Technology
[0002] During oral treatment, aerosols are formed by the mixture of saliva, blood, tooth debris, nasal and throat secretions in the patient's mouth with the air. The use of dental handpieces and ultrasonic scalers generates a large amount of aerosols. These aerosols exist for a long time in the form of deposits on various surfaces in the examination room and suspended in the air, especially in the ultrasonic scaling room. This makes oral healthcare workers continuously and extensively exposed to high levels of aerosols, facing the risk of inhaling aerosols and contact with contaminating deposits. Therefore, it is necessary to use saliva suction tubes to remove saliva, blood, tooth debris, nasal and throat secretions from the patient's mouth.
[0003] Currently, the main methods used in clinical treatment, whether weak or strong negative pressure suction, all employ single-headed saliva suction tubes. These methods are inconvenient to operate, have a limited suction range, and allow saliva and other liquids in the patient's mouth to easily leak out through the gaps between the patient's lips. Furthermore, while ideally, oral treatment should be performed with four hands, the current practice of having four hands results in a significant workload for the patient. Utility Model Content
[0004] To solve the above problems, this utility model provides an attraction device with a circumferential attraction function, which adopts the following technical solution:
[0005] An attraction device with a circumferential attraction function includes:
[0006] Outer ring road;
[0007] The suction device body includes an inner tube ring and an outer suction tube; one end of the outer suction tube is connected to the inner tube ring to aspirate aerosols and oral fluids generated during oral treatment, and the other end is detachably connected to the negative pressure suction tube of the dental comprehensive treatment machine.
[0008] A connecting ring, the two ends of which are fixedly connected to the outer ring and the inner tube ring, respectively.
[0009] Furthermore, the connecting ring is a cylindrical structure; the interior of the connecting ring is hollow; both ends of the connecting ring along the axial direction are fixedly connected to the outer ring and the inner tube ring respectively; a handle is connected to the outer ring ring for stretching the outer ring ring; the center line of the connecting ring, the center line of the inner tube ring, and the center line of the outer ring ring are coaxially arranged.
[0010] Furthermore, the connecting ring is made of a flexible material with elasticity.
[0011] Furthermore, the inner tube ring includes a first inner tube ring and a second inner tube ring; the inner diameter of the first end of the first inner tube ring is larger than the inner diameter of the second end of the first inner tube ring; the first end and the second end of the first inner tube ring are detachably connected by a connecting unit to form a ring structure; the first inner tube ring is detachably connected to the end of the connecting ring away from the outer ring; one end of the second inner tube ring communicates with the outer suction tube, and the other end passes radially through the first inner tube ring and extends towards the center of the first inner tube ring.
[0012] Furthermore, the first inner tube ring is provided with a plurality of first suction holes to absorb aerosols generated during oral treatment; the plurality of first suction holes are evenly arranged in a ring structure along the central axis of the inner tube ring; the second inner tube ring is provided with a plurality of second suction holes at one end away from the outer suction tube to absorb liquid in the oral cavity.
[0013] Furthermore, the connecting unit includes a first spring, a limiting block, and a locking block; the first spring, the limiting block, and the locking block are disposed at the same end of the first inner tube ring; the limiting block is connected to the inner wall of the first inner tube ring; one end of the first spring is sleeved on the limiting block and abuts against the inner wall of the first inner tube ring, and the other end is connected to the locking block, so that the locking block can extend and retract radially within the first inner tube ring; the locking block cooperates with the first suction hole to adjust the size of the area enclosed by the first inner tube ring and fix the end of the first inner tube ring.
[0014] Furthermore, the first inner tube ring, the second inner tube ring, and the outer suction tube are all flexible tubes.
[0015] Beneficial effects:
[0016] This utility model provides a suction device with a circumferential suction function, which can simultaneously suction aerosols generated during oral treatment and suction oral fluids, with a large suction range. This suction device is for one person only and is a disposable product. It performs integrated suction and combines suction with mouth widening function, which can not only protect the patient's oral mucosa, but also provide the dentist with a good oral field of vision, while saving human resources. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the attraction device with circumferential attraction function of this utility model;
[0018] Figure 2 This is a bottom view of the attraction device with a circumferential attraction function according to this utility model;
[0019] Figure 3This is a partial enlarged view of the attraction device with circumferential attraction function of this utility model;
[0020] Figure 4 This is a schematic diagram of the adjustment and installation of the first inner tube ring of the suction device with circumferential suction function of this utility model.
[0021] Figure 5 This is a schematic diagram showing the connection between the second inner tube ring and the second inner tube ring in Embodiment 2 of the present invention;
[0022] Figure 6 This is a bottom view of the connecting ring in Embodiment 3 of this utility model;
[0023] The components are as follows: 1. Outer ring; 2. Outer suction tube; 3. Connecting ring; 4. First inner tube ring; 5. Second inner tube ring; 6. First suction hole; 7. Second suction hole; 8. First spring; 9. Limiting block; 10. Locking block; 11. Handheld part; 12. Second inner tube ring one; 13. Second inner tube ring two; 14. Second spring; 15. Annular protrusion; 16. Slide groove; 17. Slider; 18. Mesh cover. Detailed Implementation
[0024] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below.
[0025] Example 1
[0026] Reference Figures 1 to 4 An attraction device with a circumferential attraction function, comprising:
[0027] Outer ring 1;
[0028] The main body of the suction device includes an inner tube ring and an outer suction tube 2; one end of the outer suction tube 2 is connected to the inner tube ring 4 to absorb aerosols and oral fluids generated during oral treatment, and the other end is detachably connected to the negative pressure suction tube of the dental comprehensive treatment machine.
[0029] Connecting ring 3, with its two ends fixedly connected to outer ring 1 and inner tube ring respectively.
[0030] In this embodiment, the connecting ring 3 is a cylindrical structure; the interior of the connecting ring 3 is hollow; the two ends of the connecting ring 3 along the axial direction are fixedly connected to the outer ring 1 and the inner tube ring respectively; a hand-held part 11 is connected to the outer ring 1 to stretch the outer ring ring; the center line of the connecting ring 3, the center line of the inner tube ring, and the center line of the outer ring 1 are coaxially arranged.
[0031] The handle 11 is symmetrically arranged at both ends of the outer ring 1 about the center line of the outer ring 1 and is fixedly connected to the outer ring 1. The position of the saliva tube can be adjusted by the handle 11.
[0032] In this embodiment, the connecting ring 3 is made of a flexible material with elasticity.
[0033] Through the above technical solution, the connecting ring 3 opens the patient's lips and protects the patient's lips.
[0034] In this embodiment, the inner tube ring includes a first inner tube ring 4 and a second inner tube ring 5; the inner diameter of the first end of the first inner tube ring 4 is larger than the inner diameter of the second end of the first inner tube ring 4; the first end of the first inner tube ring 4 and the second end of the first inner tube ring 4 are detachably connected by a connecting unit to form a ring structure; one end of the second inner tube ring 5 is connected to the outer suction tube 2, and the other end passes radially through the inner tube ring 4 and extends toward the center of the inner tube ring 4.
[0035] Wherein, the inner diameter of the first end of the first inner tube ring 4 is larger than the inner diameter of the second end of the first inner tube ring 4, so that the second end of the first inner tube ring 4 is inserted into the first end of the first inner tube ring 4.
[0036] In another embodiment, the diameter of the first end of the first inner tube ring 4 is the same as the diameter of the second end of the first inner tube ring 4. The first end of the first inner tube ring 4 and the second end of the first inner tube ring 4 are connected by a connecting pipe. The outer diameter of the first end of the first inner tube ring 4 and the outer diameter of the second end of the first inner tube ring 4 are respectively adapted to the inner diameter of the connecting pipe.
[0037] In this embodiment, the first inner tube ring 4 is provided with a plurality of first suction holes 6 to absorb aerosols generated during oral treatment; the plurality of first suction holes 6 are evenly arranged in a ring structure along the central axis of the inner tube ring; the second inner tube ring 5 is provided with a plurality of second suction holes 7 at one end away from the outer suction tube 2 to absorb liquid in the oral cavity.
[0038] Through the above technical solution, the first inner tube ring 4 is connected to the first port of the outer suction tube 2, and the aerosol generated during oral treatment is directly sucked through the first suction hole 6. The outer suction tube 2 is connected to the second inner tube ring 5 to suck the liquid in the oral cavity. Under the combined suction action of the first suction hole 6 and the second suction hole 7, the aerosol and liquid in the oral cavity can be sucked in time. Then, the aerosol generated during oral treatment and the liquid in the oral cavity are sucked out into the negative pressure suction tube of the dental comprehensive treatment machine through the first inner tube ring 4 and the second inner tube ring 5.
[0039] In this embodiment, the connecting unit includes a first spring 8, a limiting block 9, and a locking block 10; the first spring 8, the limiting block 9, and the locking block 10 are disposed at the same end of the first inner tube ring 4; the limiting block 9 is connected to the inner wall of the first inner tube ring 4; one end of the first spring 8 is sleeved on the limiting block 9 and abuts against the inner wall of the first inner tube ring 4, and the other end is connected to the locking block 10 so that the locking block 10 can extend and retract radially within the first inner tube ring 4; the locking block 10 cooperates with the first suction hole 6 to adjust the size of the area enclosed by the first inner tube ring 4 and fix the end of the first inner tube ring 4.
[0040] The locking block 10 is a spherical or hemispherical structure with a diameter larger than that of the first suction hole 6. The locking block 10 is spring-locked into the first suction hole 6 by the first spring 8, connecting the first end and the second end of the first inner tube ring 4 to prevent the locking block 10 from coming out of the first suction hole 6. By adjusting the locking block 10 to cooperate with the first suction hole 6 at different positions, the size of the area enclosed by the first inner tube ring 4 can be adjusted.
[0041] In another embodiment, the locking block 10 is a cylindrical structure with a diameter smaller than that of the first suction hole 6. The locking block 10 is spring-loaded into the first suction hole 6 by the first spring 8, connecting the first end and the second end of the first inner tube ring 4 to fix the end of the first inner tube ring 4.
[0042] The length of the limiting block 9 is less than the length of the first spring 8 in its natural extension and retraction state, so that the first spring 8 extends and retracts along the limiting block 9.
[0043] Depending on the size of the patient's mouth, the length of the ring enclosed by the first inner tube 4 can be adjusted by adjusting the length of the second end of the first inner tube 4 extending into the first end of the first inner tube 4.
[0044] As shown in the figure, the connection between the first end and the second end of the first inner tube ring 4 during use is as follows: Press the locking block 10 to compress the first spring 8. Under the action of the limiting block 9, the first spring 8 is prevented from deviating. Insert the second end of the first inner tube ring 4 into the first end of the inner suction tube. At this time, the locking block 10 is inserted at the end away from the first suction hole 6. When the second end of the first inner tube ring 4 is inserted into the designated position in the first end of the first inner tube ring 4, rotate the second end of the first inner tube ring 4 until the locking block 10 is engaged in the first suction hole 6, thus completing the fixation between the first end and the second end of the first inner tube ring 4.
[0045] In this embodiment, the first inner tube ring 4, the second inner tube ring 5, and the outer suction tube 2 are all flexible tubes.
[0046] The following is a method of using an attraction device with a circumferential attraction function provided in this embodiment:
[0047] S1. Install the first inner tube ring 4: Press the locking block 10 to insert the second end of the first inner tube ring 4 into the first end of the first inner tube ring 4. At this time, the locking block 10 is inserted at the end away from the first suction hole 6. When the second end of the first inner tube ring 4 is inserted into the designated position in the first end of the first inner tube ring 4, rotate the second end of the inner suction tube so that the first suction hole 6 of the first end of the first inner tube ring 4 and the first suction hole 6 of the second end of the first inner tube ring 4 coincide. After they coincide, release the locking block 10 so that the locking block 10 is engaged in the first suction hole 6, and connect the first end of the first inner tube ring 4 and the second end of the first inner tube ring 4.
[0048] S2. Place the first inner tube 4 and the second inner tube 5 into the patient's mouth to aspirate aerosols and liquids. After use, place the suction tube into the medical waste bin.
[0049] Example 2
[0050] This embodiment is an improvement based on Embodiment 1, and the improvement is as follows: Figure 5 As shown, the second inner tube ring 5 includes: a first inner tube ring 12, a second inner tube ring 13, and a second spring 14; the second inner tube ring 12 and the second inner tube ring 13 are hollow inside; the first inner tube ring 12 is fitted outside the second inner tube ring 13, and an annular protrusion 15 is provided inside the first end of the first inner tube ring 12; the second spring 14 is disposed inside the second inner tube ring 12, the first end of the second spring 14 is connected to the annular protrusion 15, and the second end of the second spring 14 is connected to the first end of the second inner tube ring 13, so as to realize the extension and retraction of the second inner tube ring 13 within the second inner tube ring 12; the second end of the second inner tube ring 13 is connected to a mesh cover 18, which is an elastic flexible mesh cover to prevent the second end of the second inner tube ring 13 from causing damage to the patient's mucosa due to prolonged negative pressure suction in the oral cavity.
[0051] A sliding groove 16 is provided on the outer wall of the second inner tube ring 13. A slider 17 is connected to the second end of the second inner tube ring 12. The slider 17 is adapted to the sliding groove 16. The slider 17 slides in the sliding groove 16 to guide and limit the second inner tube ring 13 when it extends and retracts in the second inner tube ring 12.
[0052] The first end of the second inner tube coil 12 is connected to the outer suction tube 2, and the second end of the second inner tube coil 12 passes through the first inner tube coil 4, so that the second inner tube coil 13 is located in the annular area enclosed by the first inner tube coil 4, so as to draw liquid from the patient's mouth.
[0053] Through the above technical solution, the second inner tube ring 13 can extend and retract within the second inner tube ring 12 to adapt to the patient's oral cavity depth and reduce pressure on oral tissues.
[0054] Example 3
[0055] This embodiment is an improvement based on Embodiment 1, and the improvement is as follows: Figure 6 As shown, the external suction tube 2 includes a main external suction tube and multiple external suction tubes; the first end of the main external suction tube is detachably connected to the negative pressure suction tube of the dental comprehensive treatment machine, the second end of the main external suction tube is connected to the first end of the external suction tube, and the second end of the external suction tube is connected to the first inner tube ring 4 to draw aerosols and liquids in the first inner tube ring 4.
[0056] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A suction device with a circumferential attraction function, characterized in that, include: Outer ring road; The main body of the suction device includes an inner tube ring and an outer suction tube; One end of the external suction tube is connected to the inner tube ring to draw up aerosols and oral fluids generated during oral treatment, and the other end is detachably connected to the negative pressure suction tube of the dental comprehensive treatment machine. A connecting ring, the two ends of which are fixedly connected to the outer ring and the inner tube ring, respectively.
2. The suction device having a surround suction function according to claim 1, characterized by, The connecting ring is a cylindrical structure; the interior of the connecting ring is hollow; the two ends of the connecting ring along the axial direction are fixedly connected to the outer ring and the inner tube ring respectively; a hand-held part is connected to the outer ring ring for stretching the outer ring ring; the center line of the connecting ring, the center line of the inner tube ring, and the center line of the outer ring ring are coaxially arranged.
3. The suction device having a surround suction function according to claim 2, characterized by, The connecting ring is made of a flexible material with elasticity.
4. The suction device having a surrounding suction function according to claim 2, wherein The inner tube ring includes a first inner tube ring and a second inner tube ring; the inner diameter of the first end of the first inner tube ring is larger than the inner diameter of the second end of the first inner tube ring; the first end and the second end of the first inner tube ring are detachably connected by a connecting unit to form a ring structure; the first inner tube ring is detachably connected to the end of the connecting ring away from the outer ring; one end of the second inner tube ring is connected to the outer suction tube, and the other end passes radially through the first inner tube ring and extends toward the center of the first inner tube ring.
5. The suction device having a surround suction function according to claim 4, wherein The first inner tube ring has multiple first suction holes to absorb aerosols generated during oral treatment; the multiple first suction holes are evenly arranged in a ring structure along the central axis of the inner tube ring; the second inner tube ring has multiple second suction holes at the end away from the outer suction tube to absorb liquid in the oral cavity.
6. The suction device having a surround suction function according to claim 5, wherein The connecting unit includes a first spring, a limiting block, and a locking block; the first spring, the limiting block, and the locking block are disposed at the same end of the first inner tube ring; the limiting block is connected to the inner wall of the first inner tube ring; one end of the first spring is sleeved on the limiting block and abuts against the inner wall of the first inner tube ring, and the other end is connected to the locking block, so that the locking block can extend and retract radially within the first inner tube ring; the locking block cooperates with the first suction hole to adjust the size of the area enclosed by the first inner tube ring and fix the end of the first inner tube ring.
7. The suction device having a surround suction function according to claim 6, wherein The first inner tube ring, the second inner tube ring, and the outer suction tube are all flexible tubes.