Tooth pulp aspirator

By designing a dental pulp aspirator with support and position adjustment components, the problem of involuntary oral closure in patients has been solved, improving the stability and efficiency of treatment and reducing the risk of root canal perforation.

CN121370408APending Publication Date: 2026-01-23THE AFFILIATED STOMATOLOGICAL HOSPITAL OF KUNMING MEDICAL UNIV
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Patent Information

Application Number
CN202511731859.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-24
Publication Date
2026-01-23

AI Technical Summary

Technical Problem

Traditional pulp aspiration devices are prone to involuntary cavity closure after the patient's mouth has been open for a long time, which cannot provide effective support for the patient's oral cavity and affects the treatment process.

Method used

A dental pulp aspirator was designed, comprising a support component and a position adjustment component. The support component fixes the patient's teeth and the angle locking component locks them in place to prevent mouth closure. The position adjustment component adjusts the position of the aspiration head to accurately aspirate the dental pulp.

Benefits of technology

It effectively avoids oral closure, improves the stability and efficiency of treatment, reduces the workload of medical staff, and lowers the risk of root canal perforation.

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Abstract

The invention relates to the technical field of dental pulp aspirators, in particular to a tooth and dental pulp aspirator which comprises an aspirator body and an aspiration head, the aspiration head is fixedly installed at the end of the aspirator body, a supporting frame is arranged on the outer side of the aspirator body, a connecting frame is connected to the outer side of the supporting frame, and the connecting frame is connected with the aspirator body. Supporting assemblies are arranged on the upper side and the lower side of the connecting frame, and a position adjusting assembly is arranged between the supporting frame and the aspirator body. Through the arrangement of the supporting assembly, a medical worker determines the position of a diseased tooth, fixes the teeth of a patient, supports the oral cavity of the patient and locks the teeth through the angle locking assembly, the situation that after the oral cavity of the patient is opened for a long time, the patient is prone to generating an autonomous cavity closing action, and the treatment process is affected is avoided, meanwhile, the aspirator body is supported in an auxiliary mode, and the treatment efficiency is improved. The working intensity of medical staff is reduced; and through the arrangement of the position adjusting assembly, adjustment at any angle can be carried out.
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Description

Technical Field

[0001] This invention relates to the field of dental pulp aspiration technology, specifically to a dental pulp aspiration device. Background Technology

[0002] The dental pulp is located within the pulp chamber inside the tooth. The shape of the pulp chamber is roughly similar to that of the tooth body; the pulp chamber at the crown is larger and called the pulp room, while the pulp chamber at the root is smaller and called the root canal. There is a small opening at the root apex called the apical foramen. The dental pulp mainly contains nerves, blood vessels, lymph nodes, and connective tissue, as well as odontoblasts arranged around the pulp, whose function is to produce dentin. If the pulp congestion persists for a long time, it develops into acute pulpitis. Treatment for pulpitis requires the removal of the pulp tissue, filling the root canals and pulp chamber with other materials. Traditionally, pulp aspiration is performed under local anesthesia to deactivate the pulp, and then a suction device is used to remove the rinsing fluid and infected material or pulp tissue from the root canals.

[0003] A search revealed patent application number (202221804117.1), which discloses "a dental pulp aspirator," comprising a fixed housing, supporting feet, a partition plate, a suction pump, a connecting tube, a gripper, a suction needle, a storage and fixing structure, a drying and sterilization structure, and a cleaning structure. Supporting feet are fixedly connected to the four corners of the bottom surface of the fixed housing. A partition plate is fixedly connected to the inner cavity of the fixed housing. A suction pump is fixedly installed in the inner cavity of the fixed housing. One end of the connecting tube is fixedly connected to the suction end of the suction pump, and a connector is fixedly connected to the other end of the connecting tube. A cleaning structure is installed in the inner cavity of the fixed housing, and a drying and sterilization structure is installed in the storage and fixing structure. This application allows for the suction of dental pulp. Furthermore, the cleaning structure facilitates convenient cleaning of the internal suction tube and suction needle, making it simple and convenient to use.

[0004] However, the above-mentioned devices have the following problems: traditional suction devices have a single function, and patients are prone to involuntary cavity closure after opening their mouths for a long time, which cannot provide support for the patient's oral cavity and can easily affect the treatment process. Therefore, we have proposed a dental pulp suction device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a dental pulp aspiration device to solve the problem mentioned in the background art, where patients tend to involuntarily close their mouths after prolonged periods of oral closure, which fails to provide support for the patient's oral cavity and can easily affect the treatment process.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dental pulp aspirator, comprising an aspirator body and a suction head, wherein the suction head is fixedly installed at the end of the aspirator body, a support frame is provided on the outer side of the aspirator body, a connecting frame is connected to the outer side of the support frame, support components are provided on the upper and lower sides of the connecting frame, and a position adjustment component is provided between the support frame and the aspirator body.

[0007] Preferably, the support assembly includes a first connector, a second connector, a first connecting rod, and a positioning component. The first connector is connected to the upper and lower sides of the connecting frame, the second connector is connected to the outside of the first connector, one end of the first connecting rod is fixedly connected to a first connecting rod, and the other end of the first connecting rod is provided with a positioning component.

[0008] Preferably, the position adjustment assembly includes a fixed ring, a movable block, and a connecting tube. The fixed ring is fixedly connected to the inner wall of the support frame, and a movable groove is opened inside the fixed ring. The connecting tube is movably sleeved on the outer side of the suction body, and the movable block is fixedly connected to the outer surface of the connecting tube.

[0009] Preferably, an angle locking assembly is provided between the first connector and the second connector. The angle locking assembly includes a third connecting rod, a ratchet, a fourth connecting rod, a limiting plate, and a limiting block. The third connecting rod is fixedly connected to the inner wall of the second connector, and the ratchet is fixedly connected to the surface of the third connecting rod. The fourth connecting rod is rotatably connected to the inner wall of the first connector. The limiting plate is fixedly connected to the outer side of the fourth connecting rod, and the limiting block is fixedly connected to the inner wall of the limiting plate. The gap between the limiting block and the ratchet is adapted.

[0010] Preferably, the positioning assembly includes a third connector, a second connecting rod, a positioning plate, and bolts. The end of the first connecting rod is fixedly connected to the third connector, and the two ends of the third connector are respectively connected to the second connecting rod. The other end of the second connecting rod is connected to the positioning plate, and bolts are provided at the connection between the third connector and the second connecting rod.

[0011] Preferably, the connecting frame has three sets of connecting holes inside. One set of connecting holes is located at the center of the connecting frame, and the other two sets of connecting holes are symmetrically distributed with the center point of the connecting frame as the axis. A connecting block is fixedly connected to the outer surface of the first connecting member, and a nut is connected to the outer side of the connecting block.

[0012] Preferably, the inner wall of the fixed ring is equidistantly fitted with balls, the movable block is spherical, and the inner diameter of the movable groove is adapted to the movable block.

[0013] Preferably, a protective pad is fixedly connected to the surface of the positioning plate, and the protective pad is made of silicone.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention, through the setting of a support component, allows medical staff to determine the location of the damaged tooth, fix the patient's tooth, support the patient's oral cavity, and lock it in place through an angle locking component. This prevents the patient from involuntarily closing the cavity after keeping their mouth open for a long time, which could affect the treatment process. At the same time, it provides auxiliary support for the main body of the suction device, reducing the workload of medical staff.

[0015] This invention, through the setting of the position adjustment component, can be adjusted to any angle, making it convenient to aim the suction head at the damaged tooth and extract the pulp. At the same time, the restriction of the connecting tube avoids the risk of root canal perforation and improves the doctor's work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the support component and the position adjustment component of the present invention; Figure 3 For the present invention Figure 1 Schematic diagram of the middle connecting frame; Figure 4 For the present invention Figure 2 A magnified view of part A in the diagram; Figure 5 For the present invention Figure 3 A magnified view of part B in the diagram.

[0018] In the diagram: 1. Suction device body; 2. Suction head; 3. Support frame; 4. Connecting frame; 5. Support assembly; 51. First connecting piece; 52. Second connecting piece; 53. First connecting rod; 54. Positioning assembly; 541. Third connecting piece; 542. Second connecting rod; 543. Positioning plate; 544. Bolt; 545. Protective pad; 6. Angle locking assembly; 601. Third connecting rod; 602. Ratchet; 603. Fourth connecting rod; 604. Limiting plate; 605. Limiting block; 606. Connecting block; 607. Nut; 7. Position adjustment assembly; 701. Fixing ring; 702. Movable groove; 703. Movable block; 704. Connecting pipe; 8. Connecting hole; 9. Ball bearing. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-5 The present invention provides an embodiment of a dental pulp aspirator, comprising an aspirator body 1 and a suction head 2. The suction head 2 is fixedly installed at the end of the aspirator body 1. A support frame 3 is provided on the outer side of the aspirator body 1. The suction head 2 passes through the support frame 3. The outer side of the support frame 3 is connected to a connecting frame 4 through four sets of connecting posts. At least one pair of support components 5 are provided on the upper and lower sides of the connecting frame 4 for supporting the teeth on the upper and lower sides of the patient, thereby fixing the position of the aspirator body 1. A position adjustment component 7 is provided between the support frame 3 and the aspirator body 1 for adjusting the position of the aspirator body 1. This device, through the setting of support component 5 and position adjustment component 7, solves the problem that patients are prone to involuntary cavity closure after opening their mouths for a long time, which fails to provide support for the patient's oral cavity and easily affects the treatment process of the therapist.

[0021] Furthermore, the support assembly 5 includes a first connector 51, a second connector 52, a first connecting rod 53, and a positioning assembly 54. The first connector 51 is connected to the upper and lower sides of the connecting frame 4, the second connector 52 is connected to the outside of the first connector 51, one end of the first connecting rod 53 is fixedly connected to the first connecting rod 53, and the other end of the first connecting rod 53 is provided with the positioning assembly 54. Figure 2 As shown, the structure is used to connect the first connector 51 and the second connector 52. By rotating the first connecting rods 53 on the upper and lower sides, the positioning component 54 is fitted into the patient's teeth, thereby supporting the patient's oral cavity, preventing closure, and supporting the entire device.

[0022] Furthermore, the position adjustment assembly 7 includes a fixed ring 701, a movable block 703, and a connecting pipe 704. The fixed ring 701 is fixedly connected to the inner wall of the support frame 3. The fixed ring 701 has a movable groove 702 inside. The connecting pipe 704 is movably sleeved on the outer side of the suction body 1. The movable block 703 is fixedly connected to the outer surface of the connecting pipe 704. Figure 2 As shown, this structure is used to adjust the orientation of the suction head 2 by holding the suction body 1 and rotating the connecting tube 704 in the movable groove 702 under the action of the movable block 703, so as to make it easier to align the suction head 2 with the damaged caries tooth and extract the pulp.

[0023] Furthermore, an angle locking assembly 6 is provided between the first connecting member 51 and the second connecting member 52. The angle locking assembly 6 includes a third connecting rod 601, a ratchet 602, a fourth connecting rod 603, a limiting plate 604, and a limiting block 605. The third connecting rod 601 is fixedly connected to the inner wall of the second connecting member 52, and the ratchet 602 is fixedly connected to the surface of the third connecting rod 601. The fourth connecting rod 603 is rotatably connected to the inner wall of the first connecting member 51, and the limiting plate 604 is fixedly connected to the outer side of the fourth connecting rod 603. The limiting block 605 is fixedly connected to the inner wall of the limiting plate 604. The gap between the limiting block 605 and the ratchet 602 is adapted. Another set of ratchet 602 faces the opposite direction. At the same time, the limiting plate 604 and the limiting block 605 are adjusted accordingly. Figure 4 As shown, this structure is used to drive the third connecting rod 601 and ratchet 602 to rotate when the first connecting rod 53 rotates. When the ratchet 602 rotates, it pushes the limiting block 605, causing the limiting plate 604 to swing. After adjustment, the limiting plate 604 re-inserts the limiting block 605 into the gap of the ratchet 602 to lock the ratchet 602, thereby limiting the first connecting rod 53.

[0024] Furthermore, the positioning assembly 54 includes a third connector 541, a second connecting rod 542, a positioning plate 543, and a bolt 544. The first connecting rod 53 is fixedly connected to the third connector 541 at one end. The second connecting rod 542 is connected to both ends of the third connector 541, and the positioning plate 543 is connected to the other end of the second connecting rod 542. A bolt 544 is provided at the connection between the third connector 541 and the second connecting rod 542. Figure 5 As shown, the structure is used to support the patient's teeth by attaching two sets of positioning plates 543 to the surface of the teeth, thereby enhancing the stability of the device. The angle of the second connecting rod 542 can be adjusted by bolts 544, thereby improving the applicability of the device.

[0025] Furthermore, the connector 4 has three sets of connecting holes 8 inside. One set of connecting holes 8 is located at the center of the connector 4, and the other two sets of connecting holes 8 are symmetrically distributed around the center point of the connector 4. A connecting block 606 is fixedly connected to the outer surface of the first connector 51, and a nut 607 is connected to the outer side of the connecting block 606. When treating anterior teeth, four sets of support components 5 can be installed on both sides of the connector 4 through the connecting holes 8. When treating posterior teeth on one side, support components 5 are installed in the connecting holes 8 on the other side. Figure 3 As shown, this structure is used to facilitate the adjustment of the support component 5 to a suitable position according to the patient's tooth treatment location through three sets of connection holes 8, so as to avoid hindering the operation of medical staff.

[0026] Furthermore, the inner wall of the fixed ring 701 is equidistantly fitted with balls 9 in an annular shape, the movable block 703 is spherical, and the inner diameter of the movable groove 702 is adapted to the movable block 703. For example... Figure 3 As shown, this structure is used to reduce the friction between the movable block 703 and the movable groove 702 by means of the ball bearing 9, so that the suction body 1 can be adjusted more flexibly.

[0027] Furthermore, a protective pad 545, made of silicone, is fixedly connected to the surface of the positioning plate 543. Figure 5 As shown, this structure is used to prevent the positioning plate 543 from directly contacting the teeth and thus causing damage to the teeth by setting the protective pad 545.

[0028] Working principle: When using, such as Figure 3 and Figure 4 As shown, according to the position of the patient's treated teeth, the connecting block 606 is inserted into the corresponding connecting hole 8, and the connecting block 606 is fixed by the nut 607, as follows. Figure 2 and Figure 4 As shown, rotating the first connecting rod 53 on both the upper and lower sides causes the third connecting rod 601 and ratchet 602 to rotate. When the ratchet 602 rotates, it pushes the limiting block 605, causing the limiting plate 604 to swing. After adjustment, the limiting plate 604 re-inserts the limiting block 605 into the gap of the ratchet 602, locking the ratchet 602 and thus limiting the first connecting rod 53. At this time, as... Figure 5 As shown, the two sets of positioning plates 543 at the third connector 541 are respectively attached to the surface of the patient's teeth for support. After being fixed, as... Figure 2 As shown, by holding the suction device body 1, the connecting tube 704 is driven to rotate in the movable groove 702 under the action of the movable block 703, thereby adjusting the orientation of the suction head 2, so as to make it easier to align the suction head 2 with the damaged caries tooth and extract the pulp. The above is the entire working principle of the present invention.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A dental pulp aspirator, comprising a suction body (1) and a suction head (2), characterized in that: A suction head (2) is fixedly installed at the end of the suction body (1). A support frame (3) is provided on the outside of the suction body (1). A connecting frame (4) is connected to the outside of the support frame (3). Support components (5) are provided on the upper and lower sides of the connecting frame (4). A position adjustment component (7) is provided between the support frame (3) and the suction body (1).

2. The dental pulp aspiration device according to claim 1, characterized in that: The support component (5) includes a first connector (51), a second connector (52), a first connecting rod (53), and a positioning component (54). The first connector (51) is connected to the upper and lower sides of the connecting frame (4). The second connector (52) is connected to the outside of the first connector (51). One end of the first connecting rod (53) is fixedly connected to the first connecting rod (53), and the other end of the first connecting rod (53) is provided with a positioning component (54).

3. The dental pulp aspiration device according to claim 1, characterized in that: The position adjustment component (7) includes a fixed ring (701), a movable block (703) and a connecting pipe (704). The fixed ring (701) is fixedly connected to the inner wall of the support frame (3). The fixed ring (701) has a movable groove (702) inside. The connecting pipe (704) is movably sleeved on the outer side of the suction body (1). The movable block (703) is fixedly connected to the outer surface of the connecting pipe (704).

4. A dental pulp aspiration device according to claim 2, characterized in that: An angle locking assembly (6) is provided between the first connector (51) and the second connector (52). The angle locking assembly (6) includes a third connecting rod (601), a ratchet (602), a fourth connecting rod (603), a limiting plate (604), and a limiting block (605). The inner wall of the second connector (52) is fixedly connected to the third connecting rod (601), and the surface of the third connecting rod (601) is fixedly connected to the ratchet (602). The inner wall of the first connector (51) is rotatably connected to the fourth connecting rod (603), and the outer side of the fourth connecting rod (603) is fixedly connected to the limiting plate (604). The inner wall of the limiting plate (604) is fixedly connected to the limiting block (605), and the gap between the limiting block (605) and the ratchet (602) is adapted.

5. A dental pulp aspiration device according to claim 2, characterized in that: The positioning component (54) includes a third connector (541), a second connecting rod (542), a positioning plate (543), and a bolt (544). The end of the first connecting rod (53) is fixedly connected to the third connector (541). The two ends of the third connector (541) are respectively connected to the second connecting rod (542). The other end of the second connecting rod (542) is connected to the positioning plate (543). A bolt (544) is provided at the connection between the third connector (541) and the second connecting rod (542).

6. A dental pulp aspiration device according to claim 2, characterized in that: The connecting frame (4) has three sets of connecting holes (8) inside. One set of connecting holes (8) is located at the center of the connecting frame (4), and the other two sets of connecting holes (8) are symmetrically distributed with the center point of the connecting frame (4) as the axis. A connecting block (606) is fixedly connected to the outer surface of the first connecting piece (51), and a nut (607) is connected to the outer side of the connecting block (606).

7. A dental pulp aspiration device according to claim 3, characterized in that: The inner wall of the fixed ring (701) is equidistantly fitted with balls (9), the movable block (703) is spherical, and the inner diameter of the movable groove (702) is adapted to the movable block (703).

8. A dental pulp aspiration device according to claim 5, characterized in that: The surface of the positioning plate (543) is fixedly connected to a protective pad (545), which is made of silicone.

Citation Information

Patent Citations

  • Tooth pulp aspirator

    CN217611468U