Handle and electric root canal flusher

Abstract

The utility model belongs to the field of dental treatment instruments, and relates to a handle which comprises a shell and a main path pipe arranged in the shell, the main path pipe is provided with a first connector and at least two second connectors, the first connector is connected with a connector used for being connected with a disposable needle, and the two second connectors are used for water inlet and water outlet respectively; the two second interfaces are communicated with the first interface through a connecting channel; the utility model further relates to an electric root canal flusher. According to the technical scheme, the connector can be connected with the disposable syringe needle for manual injection of a doctor, the disposable syringe needle is effectively matched, other syringe needles matched with the handle do not need to be purchased, the universality of a product is improved, the use cost is reduced, meanwhile, the disposable syringe needle is thrown away at any time and does not need to be detached after being used for high-temperature steam sterilization, and the use cost is reduced. The use is very convenient.

Description

Technical Field

[0001] The present application relates to the technical field of dental treatment instruments, and more specifically, to a handle and an electric root canal irrigator. Background Art

[0002] In root canal treatment, doctors will perform root canal irrigation after root canal flushing to prevent bacterial growth. They will introduce irrigation disinfectants such as sodium hypochlorite or saline into the root canal to flush and disinfect the root canal, thereby minimizing bacteria and removing calcified debris generated on the root canal wall during root canal preparation. Currently, hospitals and clinics generally rely on manual use of syringes to complete root canal irrigation. On the one hand, this method is inefficient, has a low flow rate, and is inconvenient to operate; on the other hand, after root canal irrigation, a small amount of waste liquid and debris will still remain in the root canal, leaving a risk of infection.

[0003] Existing root canal irrigation and suction devices often include an irrigation unit and a suction unit. A detachable nozzle needle is installed on the infusion tube of the existing device. The detachable nozzle needle has an irrigation nozzle and one side is connected to a suction nozzle through a negative pressure tube.

[0004] At present, the existing technical solutions still have shortcomings. The detachable nozzle needle has a complex structure, and a negative pressure tube needs to be dragged during flushing, which is inconvenient for dentists to use. In addition, the detachable nozzle needle is conical in shape, and the length is generally 15-25mm. The diameters of the thick end and the thin end are generally at least 1mm and at least 0.5mm, respectively. The needle diameter of the manual injection root canal flushing needle is even smaller. Such manual injection root canal flushing needles are all disposable needles, which are very convenient for doctors to use and throw away after use. However, the current existing technology cannot be adapted to the universal disposable root canal flushing needle. At the same time, the detachable nozzle needle of the electric root canal flusher in the existing technology needs to be removed for high-temperature steam sterilization after use, and needs to be reinstalled after high-temperature sterilization for the next use, which is very inconvenient to use. Utility Model Content

[0005] The technical problem to be solved by the embodiments of the present application is that the handle of the prior art is not compatible with the syringe needle of a manual injection and the handle has electronic components that are not convenient for high-temperature steaming and sterilization.

[0006] In order to solve the above technical problems, the present application provides a handle, which adopts the following technical solution:

[0007] It includes a shell and a main pipe arranged in the shell, the main pipe is provided with a first interface and at least two second interfaces, the first interface is connected to a connector for connecting a disposable needle, and the two second interfaces are respectively used for water inlet and water outlet; the two second interfaces are connected to the first interface through a connecting channel.

[0008] Furthermore, the second interfaces are respectively connected with plugs for connecting to a flusher, and the connectors are connected to the plugs through the main pipe.

[0009] Furthermore, the connecting channel is a stepped hole structure, and the contraction direction is from the plug toward the connector.

[0010] Furthermore, the housing includes a handle housing, a connector housing and a plug housing, and the handle housing is installed between the connector housing and the plug housing.

[0011] Furthermore, the connector housing is provided with a connector connection cavity, and during assembly, one end of the connector is inserted into the first interface, and the other end of the connector passes through the connector connection cavity and partially leaks out of the handle.

[0012] Furthermore, the connector connecting cavity comprises a first connecting cavity and a second connecting cavity which are interconnected, the inner diameter of the first connecting cavity is larger than the inner diameter of the second connecting cavity, a first step is formed between the first connecting cavity and the second connecting cavity, the connector abuts against the first step, and a second step is provided at one end of the main pipe close to the connector, and the second step abuts against the connector.

[0013] Furthermore, the connector is provided with a connecting portion suitable for sleeve-fitting the disposable needle, and the inner wall of the connecting cavity is provided with a Luer thread suitable for screwing onto the end flange of the disposable needle along the axial direction of the connector.

[0014] Furthermore, a joint shell thread is provided on the joint shell, a handle shell thread is provided on the handle shell, the joint shell thread is connected to one end of the main pipe, and the handle shell thread is connected to one end of the main pipe or to the joint shell thread, and the plug shell thread is connected to the other end of the main pipe or to the handle shell thread.

[0015] Furthermore, the handle also includes an insert and a tail cover for fixing the plug, one end of the insert abuts against the end of the main pipe, the inner wall of the plug shell is circumferentially provided with a flange, and a limiting portion is provided on the outer side of the insert, and the limiting portion is clamped in a chamber formed by the flange, the inner wall of the insert and the main pipe, the other end of the insert is threadedly connected to the inner wall of the plug shell, and the tail cover is provided with a third connecting cavity. During assembly, one end of the plug is inserted into the second interface, and the other end of the plug is arranged in the third connecting cavity after passing through the insert.

[0016] Furthermore, the other end of the plug located in the third connecting cavity is a pagoda connector, and the two pagoda connectors are respectively suitable for assembling a liquid outlet pipe and a liquid inlet pipe of an electric root canal irrigator.

[0017] Furthermore, a first sealing ring is provided between the joint and the main pipe, and a second sealing ring is provided between the plug and the main pipe.

[0018] Furthermore, at least one first groove for accommodating the first sealing ring is provided on the outer circumference of the joint, and at least one second groove for accommodating the second sealing ring is provided on the outer circumference of the plug.

[0019] In order to solve the above technical problems, the embodiment of the present application further provides an electric root canal irrigator, which adopts the following technical solution:

[0020] It comprises a main unit and the handle, wherein the main unit is provided with a liquid outlet pipe and a liquid inlet pipe respectively connected with the plug.

[0021] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects: the connector of the present application is used to connect a disposable needle used by doctors for manual injection. The connector is effectively compatible with the disposable needle, and there is no need to purchase other needles that are compatible with the handle, thereby improving the versatility of the product and reducing the cost of use. At the same time, the disposable needle can be used and discarded at will, and there is no need to remove it for high-temperature steam sterilization after use, which is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the scheme of the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a three-dimensional picture of the handle;

[0024] Figure 2 This is an exploded view of the handle;

[0025] Figure 3 is a cross-sectional view of the handle.

[0026] Figure numerals: 1. main pipe; 2. connector; 3. plug; 4. handle housing; 5. connector housing; 6. plug housing; 8. insert; 9. tail cover; 11. first interface; 12. second interface; 13. connecting channel; 14. second step; 21. connecting part; 51. first connecting cavity; 52. second connecting cavity; 53. first step; 61. flange; 71. first sealing ring; 72. second sealing ring; 81. limiting part; 91. third connecting cavity; 100. shell. DETAILED DESCRIPTION

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0028] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] In order to make the technical personnel in this field better understand the present application scheme, the following will be combined with the attached Figure 1-Figure 3 , clearly and completely describe the technical solutions in the embodiments of the present application.

[0030] A handle comprises: a shell 100 and a main pipe 1 arranged in the shell 100, the main pipe 1 is provided with a first interface 11 and at least two second interfaces 12, the first interface 11 is connected with a connector 2 for connecting a disposable needle, the two second interfaces 12 are respectively used for water inlet and water outlet, the two second interfaces 12 are connected with the first interface 11 through a connecting channel 13, the connector 2 is used to connect a disposable needle for manual injection by a doctor, and the disposable needle is effectively adapted, and there is no need to purchase other needles adapted to the handle, thereby improving the versatility of the product and reducing the cost of use. At the same time, the disposable needle can be used and discarded at will, and there is no need to remove it for high-temperature steam sterilization after use, which is very convenient to use.

[0031] Furthermore, the electronic components of the present application, such as the flow control switch, mode selection switch, main switch, etc., are all set on the host screen or pedal of the flusher. Therefore, the handle adopts a fully mechanical structure design without electronic components. The entire handle can be completely placed in a disinfection device for steaming and sterilization, which ensures the stability of the overall structure while preventing virus residues and reducing the cost of use.

[0032] Furthermore, in the present application, all electronic components are located on the electric root canal irrigator, that is, the electric root canal irrigator controls the liquid outlet and the liquid inlet to flow water into and out of the plug 3. There is no need to set electronic components on the handle. All parts of the handle are made of cooking-resistant materials, such as metal or hard plastic, preferably 316L stainless steel, so as to achieve cooking sterilization of the handle.

[0033] Furthermore, the second interface 12 is respectively connected with a plug 3 for connecting the irrigator, and the connector 2 is connected to the plug 3 through the main pipe 1. The plug 3 is respectively connected to the liquid outlet pipe and the liquid inlet pipe of the irrigator; when the plug 3 is connected to the liquid outlet pipe, the second interface 12 connected to the plug 3 is used for water intake, and the irrigator transmits the irrigating disinfectant such as sodium hypochlorite or saline to the second interface 12 through the liquid outlet pipe and the plug 3 connected thereto. Since the connector 2 is connected to the plug 3 through the main pipe 1, the irrigating disinfectant flows into the root canal of the inlet cavity through the connector 2 and the disposable needle connected to the connector 2, and the root canal is irrigated and disinfected, thereby minimizing bacteria and removing calcified debris generated on the root canal wall during root canal preparation. When the plug 3 is connected to the liquid inlet pipe, the second interface 12 connected to the plug 3 is used for water outlet. After the water pump of the irrigator is started, suction is generated. The liquid and calcified debris in the root canal of the oral cavity are sucked by the disposable needle and sequentially pass through the joint 2, the first interface 11, the second interface 12, the plug 3 and the liquid inlet pipe to reach the waste liquid tank in the irrigator. At the same time, when the water pump is turned on, there is a little suction on the corresponding liquid inlet pipe, the plug 3 connected to the liquid inlet pipe and the second interface 12, so that the waste liquid enters the liquid inlet pipe and does not cause backflow or contamination of the clean water pipe. The clean water pipe such as the liquid outlet pipe, the plug 3 connected to the liquid outlet pipe and the second interface 12 effectively prevents the waste liquid from contacting with flushing disinfectants such as sodium hypochlorite or saline and thereby contaminating the flushing disinfectants.

[0034] Furthermore, the two second interfaces 12, one is used for water inlet and the other is used for water outlet, thereby realizing independent control. One handle can spray out flushing disinfectant and absorb waste liquid at the same time. The doctor only needs to control the flusher to adjust it at any time. The control is convenient and there is no need to replace the other handle to spray out flushing disinfectant or absorb waste liquid, thereby improving the convenience of use.

[0035] Further, the two second interfaces 12 are connected to the first interface 11 through a connecting channel 13. The connecting channel 13 connects the second interface 12 and the first interface 11, that is, the two second interfaces 12 converge at the first interface 11, and the two converge at the first interface 11. Whether it is a flushing disinfectant such as sodium hypochlorite or saline used for cleaning and disinfection, or a sucked waste liquid, all pass through the first interface 11. However, when the water pump is turned on, there is a little suction force on the corresponding liquid inlet pipe, the plug 3 connected to the liquid inlet pipe, and the second interface 12, so that the waste liquid can only enter the connecting channel 13 of the plug 3 connected to the liquid inlet pipe, and will not enter the connecting channel 13 of the plug 3 connected to the liquid outlet pipe, effectively preventing the waste liquid from contacting with flushing disinfectants such as sodium hypochlorite or saline, thereby contaminating the flushing disinfectant and ensuring the effectiveness of treatment.

[0036] Furthermore, the first interface 11 will not have a situation where water is simultaneously entering and exiting, that is, the flushing device delivering flushing disinfectants such as sodium hypochlorite or saline and absorbing waste liquid are two different procedures and cannot be performed at the same time. Only one of them can be completed before the other. For example, the flushing disinfectant is delivered first, and then the waste liquid is absorbed after the delivery, or the flushing disinfectant is delivered after the waste liquid is absorbed, so as to prevent the flushing disinfectant from being sucked away or contaminated when the two procedures are performed at the same time.

[0037] Furthermore, the connecting channel 13 is a stepped hole structure, and the contraction direction is from the plug toward the joint. When the second interface 12 is filled with water, since the connecting channel 13 gradually contracts from the plug toward the joint, the rate and pressure of the flushing disinfectant such as sodium hypochlorite or saline gradually increase when it moves forward in the connecting channel 13, so as to form a high-speed and high-pressure water flow to spray to the root canal of the oral cavity; when the second interface 12 is discharged from water, that is, during the suction process, the step hole diameter increases in the opposite direction to that when water is inlet, and the suction force generated by the water pump of the irrigator gradually increases to ensure higher suction efficiency and facilitate the suction of liquid and calcified debris in the root canal of the oral cavity.

[0038] Furthermore, the housing 100 includes a handle housing 4, a connector housing 5 and a plug housing 6, wherein the handle housing 4 is installed between the connector housing 5 and the plug housing 6. The connector housing 5 is used to fix the connector 2, and the plug housing 6 is used to fix the plug 3. The handle housing 4, the connector housing 5 and the plug housing 6 are made of a retort-resistant material, such as metal or hard plastic, preferably 316L stainless steel, so as to achieve retort sterilization of the handle. The housing 100 is arranged in sections, which is conducive to the installation and replacement of the main pipe 1, the connector 2 and the plug 3; at the same time, it can also be further desilted and disinfected.

[0039] Furthermore, the connector housing 5 is provided with a connector connection cavity, one end of the connector 2 is inserted into the first interface 11, and the other end of the connector 2 passes through the connector connection cavity and partially leaks out of the handle. The connector 2 partially leaks out of the handle, which is convenient for positioning and docking installation with a disposable needle.

[0040] Further, the joint connection cavity includes a first connection cavity 51 and a second connection cavity 52 that are interconnected, the inner diameter of the first connection cavity 51 is larger than the inner diameter of the second connection cavity 52, a first step 53 is formed between the first connection cavity 51 and the second connection cavity 52, the joint 2 abuts on the first step 53, and the end of the main pipe 1 close to the joint 2 is provided with a second step 14, and the second step 14 abuts on the joint 2. The abutting installation method can not only fix the joint 2, but also limit the movement of the joint 2 to ensure its sealed connection.

[0041] Furthermore, the connector 2 is provided with a connecting portion 21 suitable for sleeve-fitting the disposable needle, and the inner wall of the connecting cavity 52 is provided with a Luer thread suitable for screwing the flange at the end of the disposable needle along the axial direction of the connector 2. The connector housing 5 is connected to the disposable needle, and the interior is a Luer thread. The disposable needle is a disposable needle commonly used by doctors. When in use, the disposable needle only needs to be screwed into the handle and locked. After use, the needle is rotated and removed, which is convenient and quick, and has a good fixing effect.

[0042] Furthermore, the handle is located at one end of the connector housing 5 in the form of a male Luer connector, which is a standardized micro-seepage-free connector. The male Luer connector of the handle is connected to the female Luer connector of a matching disposable needle, which has the effect of quick connection and strong versatility.

[0043] Furthermore, the joint shell 5 is provided with a joint shell thread, the handle shell 4 is provided with a handle shell thread, the joint shell is threadedly connected to one end of the main pipe 1, and the handle shell is threadedly connected to one end of the main pipe 1 or to the joint shell, and the plug shell is threadedly connected to the other end of the main pipe 1 or to the handle shell. The threaded connection is convenient for disassembly and assembly, which is conducive to the installation and replacement of the main pipe 1, the joint 2 and the plug 3; at the same time, it can also be further disinfected and desilted.

[0044] Furthermore, the handle also includes an insert 8 and a tail cover 9 for fixing the plug 3. One end of the insert 8 abuts against the end of the main pipe 1. The inner wall of the plug shell 6 is circumferentially provided with a flange 61. A limiting portion 81 is provided on the outer side of the insert 8. The limiting portion 81 is clamped in the chamber formed by the flange 61, the inner wall of the insert 8 and the main pipe 1. The other end of the insert 8 is threadedly connected to the inner wall of the plug shell 6. The tail cover 9 is provided with a third connection cavity 91. During assembly, one end of the plug 3 is inserted into the second interface 12, and the other end of the plug 3 is arranged in the third connection cavity 91 after passing through the insert 8. The insert 8 can position and fix the two plugs 3 respectively to prevent the two plugs 3 from moving, resulting in loss of sealing connection, etc. The tail cover 9 is convenient for disassembly and assembly of the liquid outlet pipe and the liquid inlet pipe on the connector 3.

[0045] Furthermore, the connector housing 5 and the handle housing 4, the handle housing 4 and the plug housing 6, the second interface 12 and the plug 3, and the insert 8 and the tail cover 9 are fixed together by rigid connection, and the rigid connection includes threaded connection, adhesive, laser welding, etc., preferably threaded connection.

[0046] Furthermore, the other end of the plug 3 located in the third connecting cavity 91 is a pagoda connector, and the two pagoda connectors are respectively suitable for assembling the liquid outlet pipe and the liquid inlet pipe of the electric root canal irrigator, so as to facilitate the quick connection of the plug 3 with the liquid outlet pipe and the liquid inlet pipe of the irrigator and prevent it from loosening during use.

[0047] Furthermore, a first sealing ring 71 is provided between the connector 2 and the main pipe 1, and a second sealing ring 72 is provided between the plug 3 and the main pipe 1. The first sealing ring 71 ensures a sealed connection between the connector 2 and the first interface 11, and the second sealing ring 72 ensures a sealed connection between the plug 3 and the second interface 12, ensuring that the irrigator accurately delivers irrigating disinfectants such as sodium hypochlorite or saline to the root canal of the oral cavity, while ensuring the suction force of the liquid pipette so that the waste liquid enters the liquid inlet pipe.

[0048] Furthermore, at least one first groove for accommodating the first sealing ring 71 is provided on the outer circumference of the connector 2, and at least one second groove for accommodating the second sealing ring 72 is provided on the outer circumference of the plug 3. After assembly, the two ends of the first sealing ring 71 respectively abut against the bottom wall of the first groove and the inner wall of the first interface 11, and the two ends of the second sealing ring 72 respectively abut against the bottom wall of the second groove and the inner wall of the second interface 12. In this embodiment, two first grooves and two second grooves are provided respectively, and the provision of the first groove and the second groove can prevent the first sealing ring 71 and the second sealing ring 72 from coming out, thereby ensuring a sealed connection between the connector 2 and the first interface 11, and between the plug 3 and the second interface 12.

[0049] The embodiment of the present application also provides an electric root canal irrigator, comprising: a main unit and the handle, wherein the main unit is provided with a liquid outlet pipe and a liquid inlet pipe respectively connected to the plug 3. The connector 2 is used to connect a disposable needle for manual injection by a doctor, effectively adapting to the disposable needle, eliminating the need to purchase other needles adapted to the handle, thereby improving the versatility of the product and reducing the cost of use.

[0050] At the same time, during the clinical process, the handle needs to be disinfected before entering the human oral cavity. Disinfection is generally carried out by high-temperature boiling. The existing technology has integrated buttons on the handle, which has electronic components. During high-temperature boiling, especially the water vapor generated during the process, irreversible damage will be caused to the electronic components. Therefore, the existing technology needs to protect the electronic components to ensure that the electronic components are intact and the entire handle structure is stable. However, protecting the electronic components will bring higher costs.

[0051] The electronic components of the present application, such as the flow control switch, mode selection switch, main switch, etc., are all set on the host screen or pedal of the flusher. Therefore, the handle adopts a fully mechanical structure design without electronic components. The entire handle can be completely placed in a disinfection device for steaming and sterilization, which ensures the stability of the overall structure while preventing virus residues and reducing the cost of use.

[0052] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A handle, comprising: A housing and a main pipe arranged in the housing, characterized in that the main pipe is provided with a first interface and at least two second interfaces, the first interface is connected with a connector for connecting a disposable needle, and the two second interfaces are respectively used for water inlet and water outlet; the two second interfaces are connected with the first interface through a connecting channel; The housing comprises a handle housing, a connector housing and a plug housing, wherein the handle housing is installed between the connector housing and the plug housing; The joint housing is provided with a joint connection cavity, one end of the joint is inserted into the first interface, and the other end of the joint passes through the joint connection cavity and partially leaks out of the handle; The joint connecting cavity includes a first connecting cavity and a second connecting cavity which are interconnected, the inner diameter of the first connecting cavity is larger than the inner diameter of the second connecting cavity, a first step is formed between the first connecting cavity and the second connecting cavity, the joint abuts against the first step, and a second step is provided at one end of the main pipe close to the joint, and the second step abuts against the joint.

2. The handle according to claim 1, characterized in that: The second interfaces are respectively connected with plugs for connecting to a flusher, and the connectors are communicated with the plugs through the main pipe.

3. The handle according to claim 2, characterized in that: The connecting channel is a stepped hole structure, and the contraction direction is from the plug toward the connector.

4. The handle according to claim 1, characterized in that: The connector is provided with a connecting portion suitable for sleeve-connecting the disposable needle, and the inner wall of the connecting cavity is provided with a Luer thread suitable for screwing the end flange of the disposable needle along the axial direction of the connector.

5. The handle according to claim 4, characterized in that: The joint shell is provided with a joint shell thread, the handle shell is provided with a handle shell thread, the joint shell is threadedly connected to one end of the main pipe, and the handle shell is threadedly connected to one end of the main pipe or to the joint shell, and the plug shell is threadedly connected to the other end of the main pipe or to the handle shell.

6. The handle according to claim 5, characterized in that: The handle also includes an insert and a tail cover for fixing the plug, one end of the insert abuts against the end of the main pipe, a flange is circumferentially provided on the inner wall of the plug shell, a limiting portion is provided on the outer side of the insert, the limiting portion is clamped in a chamber formed by the flange, the inner wall of the insert and the main pipe, the other end of the insert is threadedly connected to the inner wall of the plug shell, the tail cover is provided with a third connecting cavity, one end of the plug is inserted into the second interface, and the other end of the plug is arranged in the third connecting cavity after passing through the insert.

7. The handle according to claim 6, characterized in that: The other end of the plug located in the third connecting cavity is a pagoda connector, and the two pagoda connectors are respectively suitable for assembling a liquid outlet pipe and a liquid inlet pipe of an electric root canal irrigator.

8. The handle according to any one of claims 1 to 7, characterized in that: A first sealing ring is arranged between the joint and the main pipe, and a second sealing ring is arranged between the plug and the main pipe.

9. The handle according to claim 8, characterized in that At least one first groove for accommodating the first sealing ring is arranged on the outer circumference of the joint, and at least one second groove for accommodating the second sealing ring is arranged on the outer circumference of the plug.

10. An electric root canal irrigator, characterized in that: include: A host and a handle as described in any one of claims 1 to 9, wherein the host is provided with a liquid outlet pipe and a liquid inlet pipe respectively connected to the plug.

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