Dental root canal washing equipment with solution component detection function

Abstract

The invention relates to dental root canal washing equipment with a solution component detection function, which is used for washing a root canal or a dental pulp cavity, and comprises an emitter, a light guide arm, a sleeve and a laser release mechanism which are connected in sequence, the emitter comprises a laser device and a light source, the emission wavelength of the laser device is 2780nm, and the laser device and the light source are connected with the input end of the light guide arm through a monochromator; a groove is formed in one side of the sleeve, the laser releasing mechanism comprises an outer shell which is detachably matched with the groove in an inserted mode, and an optical fiber is fixedly arranged on the outer shell; the laser emits invisible light with the wavelength of 2780 nm for root canal washing and coaxial monochromatic guiding light, and therefore the effect of guiding and positioning can be achieved under the condition that the visual field is narrow. The laser emits invisible light with the wavelength of 2780 nm to carry out root canal washing, dentin debris and a contamination layer in a root canal are more efficiently removed, and solution detection can also be carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a dental root canal flushing device with a solution component detection function. Background Art

[0002] With technological advancements, the dental field is demanding increasingly high success rates for root canal treatments. Traditional ultrasonic root canal irrigation has limited strength. To overcome these bottlenecks, laser-assisted root canal irrigation has emerged. Pulsed lasers activate irrigants such as sodium hypochlorite solution or saline within the pulp cavity or root canal, generating a powerful fluid field within the root canal system. This irrigates and washes the root canal walls, effectively killing microorganisms within the root canal. The resulting irrigation effect is significantly superior to traditional sonic or ultrasonic irrigation.

[0003] Studies have shown that the 2780nm wavelength laser is the peak absorption of water, so the intensity of this wavelength laser cleaning in the root canal is far greater than that of traditional ultrasonic cleaning. At the same time, the 2780nm wavelength laser used for irrigation is invisible light, which has a narrow field of view during oral care, making it inconvenient to accurately clean the root canal. In addition, the mode is single and it is impossible to quantitatively analyze the cleanliness of the solution. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a dental root canal flushing device with a solution composition detection function to solve the above problems.

[0005] The present invention provides the following technical solutions: A dental root canal flushing device with a solution composition detection function, used for flushing a root canal or a dental pulp cavity, comprising an emitter, a light guide arm, a sleeve, and a laser release mechanism connected in sequence; The transmitter includes a laser and a light source, the laser emission wavelength is 2780nm, and the laser and the light source are both connected to the input end of the light guide arm through a monochromator; A groove is provided on one side of the sleeve, and the laser release mechanism includes an outer shell that is detachably plugged into the groove, and an optical fiber is fixedly mounted on the outer shell; one end of the optical fiber extends to the interior of the outer shell and is a spherical end, and the other end extends to the outside of the outer shell and is a pointed structure.

[0006] Preferably, the laser is a crystal of E r 3+ , C r 3+ :YSGG laser.

[0007] Preferably, the light guide arm includes a plurality of joints movably connected in sequence, each joint is provided with a reflector, and the laser and light are reflected and transmitted in the light guide arm through the reflector at the joint.

[0008] Preferably, one or more receiving grooves are provided on the outside of the outer shell, and a sealing ring is built into the receiving groove.

[0009] Preferably, the sleeve has a built-in barrier assembly, and the outer shell is inserted into or pulled out of the groove of the sleeve to achieve the closure of the barrier assembly.

[0010] Preferably, the barrier assembly includes an annular push rod, a return spring and an annular member, a guide groove is provided on the annular member, a baffle and a guide member are provided on the annular push rod, the guide member moves in the guide groove, and when the outer shell is inserted into the groove of the sleeve, it pushes the annular push rod to move along its axial direction. In this process, the annular push rod is driven to rotate along its circumferential direction through the cooperation of the guide member and the guide groove, so that the baffle closes the sleeve, and the return spring is used to push the annular push rod to reset.

[0011] Preferably, a movable plate is movably connected to the sleeve, and the movable plate is located on the side of the barrier assembly away from the groove. An amplifying lens and a mid-infrared collimator are provided on the movable plate, and the movable plate can be adjusted to move the amplifying lens or the mid-infrared collimator to the light guiding path of the sleeve.

[0012] Preferably, the periphery of the multiplier lens and the mid-infrared collimator is provided with more than one positioning hole, and further includes a positioning ring driven by a power assembly to move closer to or away from the movable plate, and the side wall of the positioning ring is provided with a conical positioning column adapted to the positioning hole.

[0013] Preferably, the power assembly includes a driving tooth rotatably connected in the sleeve, the positioning ring is coaxially threadedly connected to the driving tooth, and the positioning ring is axially slidably fitted in the sleeve along the positioning ring.

[0014] The present invention has the following beneficial technical effects: The laser of the present invention emits invisible light with a wavelength of 2780nm for root canal washing. At the same time, the light source can emit monochromatic guiding light coaxial with the invisible light with a wavelength of 2780nm through a monochromator, thereby playing a guiding and positioning role in the case of a narrow field of view.

[0015] Lasers, which emit invisible light at a wavelength of 2780nm, offer numerous advantages over ultrasonic irrigation. They more effectively remove dentin debris and smear layers from the root canal, particularly at the root canal apex. They also offer enhanced bactericidal properties, significantly reducing bacterial counts in the dentinal tubules. They also offer precise control of energy and frequency, enabling more precise manipulation. Furthermore, they are more suitable for complex root canals, such as those with curved or calcified structures, and offer lower rates of postoperative pain and greater patient comfort.

[0016] The entrance end of the optical fiber is a spherical structure that can collect light, and the exit end is a pointed structure that can focus and emit light. All the light is concentrated and then emitted, which has better effect and higher efficiency.

[0017] Meanwhile, when performing solution testing, the optical fiber is immersed in the solution being tested. Light from the light source is transmitted through a monochromator and a light-guiding arm before being coupled into the fiber probe. It then passes through the solution being tested and is received by the detector. Certain heavy metal ions in the test solution absorb this light, and by comparing it with a calibration solution, the content of that heavy metal ion can be determined, thus achieving quantitative analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the cooperation between the sleeve and the laser release mechanism of the present invention; Figure 3 This is a schematic diagram of the laser release mechanism of the present invention; Figure 4 This is a schematic structural diagram of the barrier assembly of the present invention; Figure 5 This is a schematic diagram of the coordination of the movable plate and the barrier assembly of the present invention; Figure 6 This is a schematic diagram of the cooperation between the movable plate and the positioning ring of the present invention; Figure 7 It is a schematic diagram of the structure of the power component of the present invention.

[0019] The reference numerals in the figures are: 1. Emitter; 2. Light guide arm; 3. Sleeve; 31. Groove; 4. Laser release mechanism; 41. Outer shell; 42. Optical fiber; 43. Ball end; 44. Sealing ring; 5. Spacer assembly; 51. Ring push rod; 52. Return spring; 53. Ring member; 531. Guide groove; 54. Baffle; 55. Guide member; 6. Movable plate; 61. Enhanced lens; 62. Mid-infrared collimator; 63. Positioning hole; 64. Positioning ring; 65. Conical positioning column; 66. Drive tooth. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] Example 1: A dental root canal flushing device with a solution composition detection function, used for flushing the root canal or pulp cavity, such as Figure 1-Figure 3 Shown, including: It includes a transmitter 1, a light guide arm 2, a sleeve 3 and a laser release mechanism 4 which are connected in sequence; Transmitter 1 includes a laser and a light source. The laser is a crystal E r 3+ , C r 3+ :YSGG lasers are based on the principle of stimulated emission and consist of three key components: a pump source, a gain medium, and a resonant cavity. The pump source provides energy to the laser, pumping the particles in the Er, Cr:YSGG crystal from the ground state to a high energy level, achieving population inversion. When particles transition from a high energy level to a low energy level, they emit photons with the same frequency, phase, propagation direction, and polarization state as the exciting photons. The resonant cavity is composed of mirrors, etc. Photons reflect back and forth between the mirrors, continuously inducing stimulated radiation, thereby generating a high-intensity 2780nm laser. The light emitted by the laser and the light source are coaxially arranged, and both the laser and the light source are connected to the input end of the light guide arm 2 through a monochromator; The light guide arm 2 consists of multiple joints, typically seven, each equipped with a reflector. Laser light is reflected and transmitted within the light guide arm 2 by the reflectors at the joints. By controlling the relative positions of the lenses at the joints, the light path can be transmitted at any position and angle in space, thereby transmitting the laser from the laser to the target location. The light guide arm 2 is constructed entirely of high-quality aluminum alloy, and the joints are connected by bearings, ensuring both strength and stability while providing good flexibility. Lasers with a wavelength of 2780nm are closest to the peak absorption of water and are easily absorbed by water molecules. When laser light acts on water in cavities such as root canals, it produces a cavitation effect, activating the irrigation fluid in the root canal and generating photothermal and photoacoustic effects. This causes the irrigation fluid to form a high-speed fluid and shock wave, thereby removing the smear layer, debris, and bacteria, and cleaning the root canal. like Figure 2 As shown, a groove 31 is provided on one side of the sleeve 3; Figure 3 As shown, the laser release mechanism 4 comprises an outer housing 41 that removably plugs into the groove 31. An optical fiber 42 is bonded to the outer housing 41 using optical adhesive. One end of the optical fiber 42 extends into the interior of the outer housing 41 (near the light-guiding arm 2) and forms a spherical end 43 (a ball lens). The other end extends outside the outer housing 41 and forms a pointed tip. Three receiving grooves are defined in the outer wall of the outer housing 41, each housing a corresponding sealing ring 44. During use, the outer housing 41 with the spherical end 43 is directly inserted into the instrument's groove 31 to achieve connection. The elastic sealing ring 44 not only provides a seal but also prevents the outer housing 41 from falling out of the groove 31 of the sleeve 3.

[0022] Ultraviolet-visible spectrophotometry is a method for measuring the absorbance of substances in the wavelength range of 190 to 800 nm. It is used for identification, impurity inspection and quantitative determination. Its system structure mainly includes a light source, a monochromator, a solution container and a detector.

[0023] When using optical fiber 42 for detection, it is immersed in the solution being tested. The operating principle is that light output by a light source is coupled into optical fiber 42 through a monochromator and light-guide arm 2. It then transmits through the solution being tested and is received by the detector. Certain heavy metal ions in the test solution absorb this light, and by comparing it with a calibration solution, the content of these heavy metal ions can be determined, thus achieving quantitative analysis.

[0024] The numerical aperture (NA) of a standard optical fiber is 0.22, and the light output from the optical fiber probe diverges with a full divergence angle of 25.4°.

[0025] Example 2: includes all the contents of Example 1, except that: like Figure 2 、 Figure 4 As shown, a barrier assembly 5 is built into the sleeve 3, and the barrier assembly 5 is relatively located between the end of the light guide arm 2 and the spherical end 43. Since the laser release mechanism 4 will be pulled out from the groove 31 of the sleeve 3, in order to prevent dust from entering the interior of the sleeve 3 during this period and causing pollution, the barrier assembly 5 is designed to automatically close during the period when the laser release mechanism 4 is pulled out from the groove 31 of the sleeve 3.

[0026] The barrier assembly 5 includes an annular push rod 51, a return spring 52, an annular member 53, a baffle 54 and a guide member 55. The annular push rod 51 slides linearly relative to the sleeve 3 along its axial direction, and one end of the annular push rod 51 extends into the groove 31. The annular push rod 51 and the annular member 53 are arranged in a relative annular manner. A spirally extending guide groove 531 is provided on the side of the annular member 53 close to the annular push rod 51. The guide member 55 and the baffle 54 are fixedly provided on the annular push rod 51, and the spherical guide member 55 moves relatively in the guide groove 531.

[0027] Working principle: Under normal conditions, one end of the annular push rod 51 moves into the groove 31 under the elastic force of the return spring 52. At this time, the baffle 54 relatively closes the path of the inner cavity of the sleeve 3 for light to pass through. When the outer shell 41 of the laser release mechanism 4 is inserted into the groove 31 of the sleeve 3, the annular push rod 51 is pushed to move and the reset spring 52 is compressed. In the process of the annular push rod 51 being pushed, the annular push rod 51 is guided to rotate around its own axis through the cooperation of the guide groove 531 and the guide member 55, so that the baffle 54 rotates out of the path for light to pass through.

[0028] Example 3: includes all the contents of Example 2, except that: like Figure 2 、 Figure 5-Figure 7 As shown, a movable plate 6 is linearly slidably connected to the sleeve 3, and an amplifying lens 61 and a mid-infrared collimator 62 are provided on the movable plate 6. The movable plate 6 moves relative to the sleeve 3 so that one of the amplifying lens 61 and the mid-infrared collimator 62 is located on the path of the light passing through the inner cavity of the sleeve 3; When performing solution detection, the amplifying lens 61 can be moved to the path through which the light in the inner cavity of the sleeve 3 passes, so that the light emitted from the light-guiding arm 2 is efficiently coupled into the optical fiber 42 through the amplifying lens 61 .

[0029] When performing dental root canal flushing, the mid-infrared collimator 62 can be moved to the path through which the inner cavity light of the sleeve 3 passes, so that the invisible light emitted from the light guide arm 2 is output as low divergence angle collimated light through the mid-infrared collimator 62.

[0030] The movement of the movable plate 6 has a greater impact on the accuracy and requires precise positioning. A number of positioning holes 63 can be opened on the movable plate 6, some of which are located outside the infrared collimator 62, and some of which are located outside the amplifying lens 61; the plurality of positioning holes 63 outside the infrared collimator 62 and the positioning holes 63 are arranged in the same manner; A positioning ring 64 is provided in the inner cavity of the sleeve 3, and a plurality of annularly arranged conical positioning posts 65 are provided on the side of the positioning ring 64 close to the movable plate 6. The positioning ring 64 moves relatively in the inner cavity of the sleeve 3 along the axis of the positioning ring 64, and the driving tooth 66 is connected to the inside of the sleeve 3 by rotating around its axis, and the driving tooth 66 and the positioning ring 64 are coaxially threaded. The driving tooth 66 can be driven to rotate manually or by other means of a motor. The rotation of the driving tooth 66 drives the positioning ring 64 to move along its axial direction, so that the conical positioning posts 65 on the side wall of the positioning ring 64 are inserted into the corresponding positioning holes 63 of the movable plate 6. Since the conical positioning posts 65 have a conical structure, the movable plate 6 can be corrected, so that the amplifying lens 61 and the infrared collimator 62 on the movable plate 6 after the position is adjusted are moved to the set position with high precision, thereby reducing errors.

[0031] The positioning ring 64 is driven by the rotation of the driving teeth 66, thereby avoiding plane imbalance caused by asynchronous driving of several telescopic rods.

[0032] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A dental root canal flushing device with a solution composition detection function, used for flushing a root canal or a dental pulp cavity, characterized in that: It includes a transmitter (1), a light guide arm (2), a sleeve (3) and a laser release mechanism (4) connected in sequence; The transmitter (1) includes a laser and a light source, the laser emission wavelength is 2780nm, and the laser and the light source are both connected to the input end of the light guide arm (2) through a monochromator; A groove (31) is formed on one side of the sleeve (3), and the laser release mechanism (4) comprises an outer shell (41) that is detachably plugged into the groove (31), and an optical fiber (42) is fixedly arranged on the outer shell (41); one end of the optical fiber (42) extends into the interior of the outer shell (41) and is in the form of a spherical end (43), and the other end extends to the exterior of the outer shell (41) and is in the form of a pointed structure.

2. The dental root canal flushing device with solution composition detection function according to claim 1, characterized in that: The laser is a crystal of E r 3+ , C r 3+ :YSGG laser.

3. The dental root canal flushing device with solution composition detection function according to claim 1, characterized in that: The light guide arm (2) comprises a plurality of joints movably connected in sequence, each joint being provided with a reflector, and the laser and light are reflected and transmitted within the light guide arm (2) through the reflector at the joint.

4. The dental root canal flushing device with solution composition detection function according to claim 1, characterized in that: The outer side of the outer shell (41) is provided with one or more receiving grooves, and a sealing ring (44) is built into the receiving groove.

5. The dental root canal flushing device with solution composition detection function according to claim 1, characterized in that: The sleeve (3) has a built-in barrier assembly (5), and the outer shell (41) is inserted into or extracted from the groove (31) of the sleeve (3) to achieve the closure of the barrier assembly (5).

6. The dental root canal flushing device with solution composition detection function according to claim 5, characterized in that: The barrier assembly (5) comprises an annular push rod (51), a return spring (52) and an annular member (53), wherein a guide groove (531) is provided on the annular member (53), a baffle (54) and a guide member (55) are provided on the annular push rod (51), and the guide member (55) moves in the guide groove (531). When the outer shell (41) is inserted into the groove (31) of the sleeve (3), the annular push rod (51) is pushed to move along its axial direction. During this process, the annular push rod (51) is driven to rotate along its circumferential direction by the cooperation of the guide member (55) and the guide groove (531), so that the baffle (54) closes the sleeve (3), and the return spring (52) is used to push the annular push rod (51) to reset.

7. The dental root canal flushing device with solution composition detection function according to claim 5, characterized in that: A movable plate (6) is movably connected to the sleeve (3), and the movable plate (6) is located on the side of the barrier assembly (5) away from the groove (31). An amplifying lens (61) and a mid-infrared collimator (62) are provided on the movable plate (6). The movable plate (6) is movably adjusted to move the amplifying lens (61) or the mid-infrared collimator (62) to the light guide path of the sleeve (3).

8. The dental root canal flushing device with solution composition detection function according to claim 7, characterized in that: The amplifying lens (61) and the mid-infrared collimator (62) are provided with one or more positioning holes (63) on their peripheries, and also include a positioning ring (64) driven by a power assembly to move closer to or away from the movable plate (6), wherein the side wall of the positioning ring (64) is provided with a conical positioning column (65) adapted to the positioning hole (63).

9. The dental root canal flushing device with solution composition detection function according to claim 8, characterized in that: The power assembly includes a driving tooth (66) rotatably connected in the sleeve (3), the positioning ring (64) is coaxially threadedly connected to the driving tooth (66), and the positioning ring (64) is axially slidably fitted in the sleeve (3) along the positioning ring (64).

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