Root canal flushing device

Abstract

The utility model belongs to the technical field of dental equipment, and relates to a root canal flushing device which comprises a handle and a main machine, the handle is connected to the main machine, a controller is arranged in the main machine and electrically connected with the handle, and the working states of the controller at least comprise a flushing mode, a vacuum mode and a reciprocating mode. The controller controls the handle to flush the root canal in the flushing mode, controls the handle to suck waste liquid in the root canal in the vacuum mode, and controls the handle to alternately flush the root canal and suck waste liquid in the root canal in the reciprocating mode. According to the technical scheme, by setting the reciprocating mode, when the root canal flushing device conducts root canal flushing, reciprocating switching between the flushing mode and the vacuum mode can be automatically conducted, frequent back-and-forth switching between the flushing mode and the vacuum mode by manually pressing a key is not needed, and root canal flushing operation is simpler and more convenient.

Description

Technical Field

[0001] The present application relates to the technical field of dental equipment, and more specifically, to a root canal irrigation device. Background Art

[0002] In root canal treatment, after completing the root canal flushing operation, the doctor will introduce flushing disinfectants such as sodium hypochlorite or saline into the root canal to flush and disinfect the root canal in order to prevent bacterial growth in the root canal and remove calcified debris on the root canal wall. During the root canal flushing process, the root canal is generally flushed first, and then the waste liquid in the root canal is sucked out. Flushing and waste liquid suction need to be performed repeatedly.

[0003] Existing root canal flushing equipment generally has a flushing mode and a waste liquid suction mode. When flushing the root canal, the execution time of the flushing mode and the waste liquid suction mode is relatively short, and it is necessary to manually press buttons multiple times to switch back and forth between the two modes, which makes the mode switching operation inconvenient. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the present application is: in the prior art, when the root canal is flushed, the execution time of the flushing mode and the waste liquid suction mode is relatively short, and multiple manual button presses are required to switch back and forth between the flushing mode and the waste liquid suction mode, making the mode switching operation inconvenient.

[0005] In order to solve the above technical problems, the present application provides a root canal irrigation device, which adopts the following technical solution:

[0006] A root canal irrigation device, comprising a handle and a main unit;

[0007] The handle is connected to the host;

[0008] The host is provided with a controller, the controller is electrically connected to the handle, and the working state of the controller includes at least a flushing mode, a vacuum mode and a reciprocating mode;

[0009] The controller controls the handle to rinse the root canal in the flushing mode, controls the handle to suck waste liquid from the root canal in the vacuum mode, and controls the handle to alternately rinse the root canal and suck waste liquid from the root canal in the reciprocating mode.

[0010] Furthermore, the host also includes a liquid storage tank, a first water pump and a first pipeline, and the handle is provided with a handle pipeline;

[0011] The liquid storage tank, the first water pump and the handle pipeline are connected through the first pipeline;

[0012] The controller is electrically connected to the first water pump, and in a flushing mode, the controller controls the first water pump to transport the liquid in the liquid storage tank to the handle pipeline.

[0013] Furthermore, the main unit also includes a waste water tank, a second water pump and a second pipeline;

[0014] The waste water tank, the second water pump and the handle pipeline are connected through the second pipeline;

[0015] The controller is electrically connected to the second water pump, and the controller controls the second water pump and the handle to suck the waste liquid in the root canal into the waste water tank in a vacuum mode.

[0016] Further, the controller controls the first water pump and the second water pump to work alternately in a reciprocating mode;

[0017] The first water pump provides power to transport the liquid in the liquid storage tank to the root canal through the first pipeline and the handle pipeline;

[0018] The second water pump provides power to draw the waste liquid in the root canal into the waste water tank through the handle pipeline and the second pipeline.

[0019] Furthermore, the working state of the controller also includes a self-cleaning mode, and the controller controls the first water pump and the second water pump to work simultaneously in the self-cleaning mode;

[0020] The first water pump provides power to transport the liquid in the liquid storage tank to the handle pipeline, and at the same time, the second water pump provides power to suck the liquid in the handle pipeline into the waste water tank.

[0021] Furthermore, the main unit also includes a shell, a first water pump switch and a second water pump switch. The shell is provided with a accommodating cavity. The first water pump, the second water pump, the first water pump switch and the second water pump switch are arranged in the accommodating cavity. The first water pump switch and the second water pump switch are used to control the opening and closing of the first water pump and the second water pump, respectively.

[0022] Furthermore, a tail wire structure is provided at the tail end of the handle, and a tail wire pipeline connected to the handle pipeline is provided in the tail wire structure, and the first pipeline and the second pipeline are both connected to the handle pipeline through the tail wire pipeline.

[0023] Furthermore, the waste water tank is detachably mounted on the shell, the waste water tank comprises a box body and a water pipe joint, the water pipe joint is arranged between the box body and the second water pump, a water inlet is opened on the side wall of the box body, the water pipe joint comprises a hollow body and tapered sections arranged at both ends of the body, and the two tapered sections are respectively connected to the second pipeline and the water inlet.

[0024] Furthermore, the wastewater tank also includes a drain port and a sealing plug. The drain port is arranged on the top wall of the tank body, and the sealing plug is sealed and connected to the drain port.

[0025] Furthermore, the waste water tank also includes a handrail, and the handrail is fixed on the outer side wall of the box body.

[0026] Furthermore, the root canal flushing device also includes a foot switch and a power supply, the foot switch and the power supply are electrically connected to the host respectively, the foot switch is used to control the start and stop of the root canal flushing device, and the power supply is used to supply power to the root canal flushing device.

[0027] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0028] The technical solution provided by the present application sets a reciprocating mode. When performing root canal flushing, after the reciprocating mode is selected, the controller first executes the flushing mode and controls the first water pump to start. The first water pump continuously provides power within a preset time, so that the medicine in the liquid storage tank is pumped into the root canal through the first pipeline and the handle pipeline to flush the root canal. After the flushing mode is completed, the controller controls the first water pump to stop working. At the same time, the working state of the controller is switched to the vacuum mode and controls the second water pump to work. The second water pump continuously provides power within a preset time, so that the waste liquid in the root canal is sucked into the waste water tank through the handle pipeline and the second pipeline. The root canal flushing device can automatically switch back and forth between the flushing mode and the vacuum mode, without the need to frequently switch back and forth between the flushing mode and the vacuum mode by manually pressing a button, and the root canal flushing operation is simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the solutions in the present application or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. 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.

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the root canal flushing device provided by an embodiment of the utility model;

[0031] Figure 2 It is an exploded schematic diagram of a host provided by an embodiment of the utility model;

[0032] Figure 3 It is an exploded schematic diagram of a waste water tank provided by an embodiment of the utility model;

[0033] Figure 4 It is a front view of the waste water tank provided by the embodiment of the utility model;

[0034] Figure 5 It is a side view of a waste water tank provided by an embodiment of the utility model;

[0035] Figure 6 It is a rear view of the waste water tank provided by the embodiment of the utility model;

[0036] Figure 7 It is a side view of a water pipe joint provided in an embodiment of the utility model.

[0037] Reference numerals:

[0038] 100. Root canal flushing device; 1. Handle; 2. Main unit; 21. Controller; 22. Shell; 221. First shell; 2211. First mounting seat; 2212. Second mounting seat; 222. Second shell; 23. Liquid storage tank; 24. First water pump; 25. Wastewater tank; 251. Box body; 2511. Water inlet; 2512. Drain outlet; 252. Water pipe joint; 2521. Main body; 2522. Conical section; 253. Sealing plug; 254. Handrail; 26. Second water pump; 27. First water pump switch; 28. Second water pump switch; 29. ​​Display screen; 3. Foot switch; 4. Power supply. DETAILED DESCRIPTION

[0039] 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.

[0040] 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.

[0041] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0042] Combine the following Figures 1 to 7 , describing an embodiment of the utility model.

[0043] Please refer to Figure 1 and Figure 2 As shown, the root canal flushing device 100 of the present application includes a handle 1 and a main unit 2, the handle 1 is detachably connected to the main unit 2, a controller 21 is provided in the main unit 2, the controller 21 is electrically connected to the handle 1, and the working states of the controller 21 include a flushing mode, a vacuum mode and a reciprocating mode; the controller 21 controls the handle 1 to flush the root canal in the flushing mode, controls the handle 1 to extract waste liquid from the root canal in the vacuum mode, and controls the handle 1 to alternately flush the root canal and extract waste liquid from the root canal in the reciprocating mode.

[0044] Specifically, during the process of root canal treatment, the root canal needs to be repeatedly flushed and the waste liquid needs to be sucked out. A reciprocating mode is provided on the controller 21. After selecting the reciprocating mode, the root canal flushing device 100 can automatically switch back and forth between the flushing mode and the vacuum mode. There is no need to manually press a button repeatedly to switch back and forth between the flushing mode and the vacuum mode. The root canal flushing operation is simpler and more convenient.

[0045] In this embodiment, relevant parameters of each mode can be set according to needs, such as flushing flow rate, flushing time, suction time, etc.

[0046] In one embodiment, Figure 1 and Figure 2As shown, the host 2 also includes a shell 22, a liquid storage tank 23, a first water pump 24 and a first pipeline (not shown in the figure), a handle pipeline (not shown in the figure) is provided in the handle 1, a needle (not shown in the figure) is provided at one end of the handle pipeline, and the handle pipeline is connected to the needle, a receiving chamber (not shown in the figure) is provided in the shell 22, and the controller 21 and the first water pump 24 are arranged in the receiving chamber, the liquid storage tank 23 is fixed on the shell 22, and the liquid storage tank 23, the first water pump 24 and the handle pipeline are connected through the first pipeline; the controller 21 is electrically connected to the first water pump 24, and the controller 21 controls the first water pump 24 to transport the liquid in the liquid storage tank 23 to the handle pipeline in the flushing mode. In this embodiment, the liquid storage tank 23 is used to store liquid medicine or clean water, and the number of liquid storage tanks 23 is not limited. The number of liquid storage tanks 23 is at least one, and each liquid storage tank 23 is individually adapted with an independent first water pump 24 and a first pipeline.

[0047] In a preferred embodiment, there is one liquid storage tank 23, and a plurality of compartments are provided in the liquid storage tank 23, each compartment is used to store different medicinal solutions, and each compartment is individually adapted with an independent first water pump 24 and a first pipeline to prevent adverse effects caused by mixing of medicinal solutions during medicinal solution delivery, thereby preventing damage to the root canal.

[0048] Specifically, the housing 22 includes a first housing 221 and a second housing 222, and the first housing 221 and the second housing 222 are surrounded by a receiving cavity, in which the controller 21 and the first water pump 24 are fixed. A first mounting seat 2211 is provided on the outer wall of the first housing 221, and the liquid storage tank 23 is fixed on the first mounting seat 2211. The liquid storage tank 23 is provided with a water outlet (not shown in the figure), and the first pipeline is composed of a plurality of water pipes. The water outlet of the liquid storage tank 23, the first water pump 24 and the handle pipeline are connected through the water pipe of the first pipeline. When the controller 21 is in the flushing mode, the needle of the handle 1 is placed in the patient's tooth root canal, and the controller 21 controls the first water pump 24 to work, and the first water pump 24 pumps the liquid in the liquid storage tank 23 into the handle pipeline, and the handle pipeline and the needle then transport the liquid to the root canal, thereby achieving flushing of the root canal.

[0049] In one embodiment, Figure 1 and Figure 2As shown, the host 2 also includes a wastewater tank 25, a second water pump 26 and a second pipeline (not shown in the figure), the second water pump 26 is arranged in the accommodating cavity, the wastewater tank 25 is fixed on the shell 22, the wastewater tank 25, the second water pump 26 and the handle pipeline are connected through the second pipeline, and the controller 21 is electrically connected to the second water pump 26. Specifically, a second mounting seat 2212 is provided on the outer wall of the first shell 221, the wastewater tank 25 is fixed on the second mounting seat 2212, the wastewater tank 25 is used to collect waste liquid in the root canal, the second pipeline is composed of a plurality of water pipes, the wastewater tank 25, the second water pump 26 and the handle pipeline are connected through the water pipe of the second pipeline, the controller 21 controls the second water pump 26 to work in the vacuum mode, and the second water pump 26 sucks the waste liquid in the handle pipeline, the needle and the root canal into the wastewater tank 25, thereby realizing the suction of the root canal waste liquid.

[0050] In a preferred embodiment, the root canal irrigation device 100 further includes a vacuum assembly (not shown in the figure), which is connected to the wastewater tank 25. When the controller 21 is in the vacuum mode, the vacuum assembly works and evacuates the wastewater tank 25, so that the wastewater tank 25 is in a vacuum state. When the wastewater tank 25 is in a vacuum state, the vacuum environment helps to reduce the resistance of the wastewater during the pumping process, so that the wastewater can be pumped into the wastewater tank 25 more smoothly.

[0051] In one embodiment, Figure 1 and Figure 2 As shown, a reciprocating mode is provided on the controller 21. When the controller 21 is in the reciprocating mode, the controller 21 controls the first water pump 24 and the second water pump 26 to work alternately. Specifically, the controller 21 first controls the first water pump 24 to work within a first preset time length. When the first water pump 24 works, it provides power and delivers the liquid in the liquid storage tank 23 to the root canal through the first pipeline and the handle pipeline to flush the root canal; when the working time of the first water pump 24 reaches the first preset time length, the controller 21 controls the first water pump 24 to stop working. At the same time, the controller 21 controls the second water pump 26 to work within a second preset time length. When the second water pump 26 works, it provides power to suck the waste liquid in the root canal into the waste water tank 25 through the handle pipeline and the second pipeline; when the working time of the second water pump 26 reaches the second preset time length, the controller 21 controls the second water pump 26 to stop working. The first water pump 24 and the second water pump 26 work alternately N times in this cycle. In this embodiment, the number of times N that the first water pump 24 and the second water pump 26 work alternately, the first preset time length, and the second preset time length are not limited and can be flexibly set according to actual needs.

[0052] In one embodiment, Figure 1 and Figure 2As shown, the working state of the controller 21 also includes a self-cleaning mode. Specifically, after the doctor completes the root canal flushing operation, there will be residual liquid or waste liquid in the relevant pipes inside the root canal flushing device 100, and it is necessary to use a cleaning liquid to clean the relevant pipes inside the root canal flushing device 100. In this embodiment, the cleaning liquid is clean water. Before starting the self-cleaning mode, the liquid in the liquid storage tank 23 is replaced with clean water, and then the self-cleaning mode is started. When the controller 21 is in the self-cleaning mode, the controller 21 controls the first water pump 24 and the second water pump 26 to work simultaneously. When the first water pump 24 is working, the first water pump 24 delivers the clean water in the liquid storage tank 23 to the handle pipeline through the first pipeline to clean the first pipeline and the handle pipeline. At the same time, the controller 21 controls the second water pump 26 to pump the clean water in the handle pipeline into the second pipeline and the waste water tank 25 to clean the second pipeline. In this embodiment, the first pipeline, the handle pipeline and the second pipeline are interconnected. When the self-cleaning mode is executed, the clean water continuously flows through the first pipeline, the handle pipeline and the second pipeline to clean the first pipeline, the handle pipeline and the second pipeline. The first water pump 24 and the second water pump 26 work at the same time. The first water pump 24 can continuously supply water to the first pipeline and the handle pipeline. The second water pump 26 forms a negative pressure in the second pipeline. The water in the handle pipeline is sucked into the second pipeline under the action of the negative pressure. The negative pressure makes the water flow faster in the second pipeline, and the flushing effect of the second pipeline is better.

[0053] In a preferred embodiment, before starting the self-cleaning mode, the water outlet end of the handle 1 can be placed in a water tank (not shown in the figure), or the water outlet end of the handle 1 can be blocked with a seal (not shown in the figure) to prevent clean water that cannot be sucked out in time from overflowing from the water outlet end of the handle 1 to the ground.

[0054] In one embodiment, Figure 2 As shown, the host 2 further includes a first water pump switch 27 and a second water pump switch 28, which are arranged in the accommodating cavity, and the first water pump switch 27 and the second water pump switch 28 respectively control the opening and closing of the first water pump 24 and the second water pump 26. In this embodiment, the types of the first water pump switch 27 and the second water pump switch 28 are not limited, and the first water pump switch 27 and the second water pump switch 28 can be a manual switch, a float switch, a pressure switch, an automatic switch or other types of switches. Preferably, the first water pump switch 27 and the second water pump switch 28 are both solenoid valve switches.

[0055] In an embodiment not shown in the figure, the tail end of the handle 1 is further provided with a tail wire structure (not shown in the figure), and a tail wire pipeline connected to the handle pipeline is provided in the tail wire structure, and the first pipeline and the second pipeline are both connected to the handle pipeline through the tail wire pipeline. In some preferred embodiments, a water flow regulating member (not shown in the figure) is further provided in the tail wire structure, and the water flow regulating member is used to adjust the flow rate of the liquid flowing through the handle pipeline.

[0056] In one embodiment, Figure 2 , Figure 6 and Figure 7 As shown, a second mounting seat 2212 is provided on the first housing 221, and the wastewater tank 25 is detachably fixed on the second mounting seat 2212, so that the wastewater tank 25 can be removed from the housing 22 to discharge wastewater and clean the wastewater tank 25. The wastewater tank 25 includes a housing 251 and a water pipe joint 252, which is arranged between the housing 251 and the second water pump 26. A water inlet 2511 is provided on the side wall of the housing 251. The water pipe joint 252 includes a hollow body 2521 and tapered sections 2522 arranged at both ends of the body 2521, and the two tapered sections 2522 are respectively connected to the second pipeline and the water inlet 2511. The tapered section 2522 makes the connection between the water pipe joint 252 and the water pipe tighter, effectively preventing liquid or gas from leaking at the connection.

[0057] In one embodiment, Figure 3 As shown, the wastewater tank 25 also includes a drain port 2512 and a sealing plug 253. The drain port 2512 is arranged on the top wall of the box body 251. The wastewater in the wastewater tank 25 can be discharged to the outside through the drain port 2512. The sealing plug 253 is detachably connected to the drain port 2512. The sealing plug 253 is used to seal the drain port 2512. The sealing plug 253 and the drain port 2512 are connected by interference fit or threaded connection. The sealing plug 253 is made of elastic material. Preferably, the sealing plug 253 is made of elastic plastic.

[0058] In one embodiment, Figures 3 to 5 As shown, the waste water tank 25 further includes a handrail 254, which is fixed to the outer side wall of the box body 251. The handrail 254 facilitates pulling out the waste water tank 25 for pouring water and installing it on the housing 22.

[0059] In one embodiment, Figure 1 As shown, the root canal flushing device 100 further includes a foot switch 3 and a power supply 4, the foot switch 3 and the power supply 4 are electrically connected to the host 2 respectively, the foot switch 3 is used to control the start and stop of the root canal flushing device 100, and the power supply 4 is used to supply power to the root canal flushing device 100. Preferably, the power supply 4 is an external switch power supply 4, and the foot switch 3 is a wired foot switch 3. When the foot switch 3 is stepped on, the root canal flushing device 100 is started, and when the foot switch 3 is released, the root canal flushing device 100 is stopped.

[0060] In one embodiment, Figure 1 As shown, the root canal irrigation device 100 further includes a display screen 29 , which is fixed on the first housing 221 , and is used to select an operating mode and adjust parameters.

[0061] 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 root canal irrigation device, characterized in that: Including handle and host; The handle is connected to the host; The host is provided with a controller, the controller is electrically connected to the handle, and the working state of the controller includes at least a flushing mode, a vacuum mode and a reciprocating mode; The controller controls the handle to rinse the root canal in the rinsing mode, controls the handle to suck waste liquid from the root canal in the vacuum mode, and controls the handle to alternately rinse the root canal and suck waste liquid from the root canal in the reciprocating mode; The host also includes a liquid storage tank, a first water pump and a first pipeline, and the handle is provided with a handle pipeline; The liquid storage tank, the first water pump and the handle pipeline are connected through the first pipeline; The controller is electrically connected to the first water pump, and the controller controls the first water pump to transport the liquid in the liquid storage tank to the handle pipeline in the flushing mode; The main machine also includes a waste water tank, a second water pump and a second pipeline; The waste water tank, the second water pump and the handle pipeline are connected through the second pipeline; The controller is electrically connected to the second water pump, and the controller controls the second water pump and the handle to suck the waste liquid in the root canal into the waste water tank in a vacuum mode; The controller controls the first water pump and the second water pump to work alternately in a reciprocating mode; The first water pump provides power to transport the liquid in the liquid storage tank to the root canal through the first pipeline and the handle pipeline; The second water pump provides power to draw the waste liquid in the root canal into the waste water tank through the handle pipeline and the second pipeline.

2. The root canal irrigation device according to claim 1, characterized in that: The working state of the controller further includes a self-cleaning mode, in which the controller controls the first water pump and the second water pump to work simultaneously; The first water pump provides power to transport the liquid in the liquid storage tank to the handle pipeline, and at the same time, the second water pump provides power to suck the liquid in the handle pipeline into the waste water tank.

3. The root canal irrigation device according to any one of claims 1 to 2, characterized in that: The main unit also includes a shell, a first water pump switch and a second water pump switch. The shell is provided with a accommodating cavity. The first water pump, the second water pump, the first water pump switch and the second water pump switch are arranged in the accommodating cavity. The first water pump switch and the second water pump switch are used to control the opening and closing of the first water pump and the second water pump respectively.

4. The root canal irrigation device according to any one of claims 1 to 2, characterized in that: The tail end of the handle is also provided with a tail wire structure, in which a tail wire pipeline connected with the handle pipeline is provided, and the first pipeline and the second pipeline are both connected with the handle pipeline through the tail wire pipeline.

5. The root canal irrigation device according to claim 3, characterized in that: The waste water tank is detachably mounted on the shell, and comprises a tank body and a water pipe joint, wherein the water pipe joint is arranged between the tank body and the second water pump, and a water inlet is provided on the side wall of the tank body, and the water pipe joint comprises a hollow body and tapered sections arranged at both ends of the body, and the two tapered sections are respectively connected to the second pipeline and the water inlet.

6. The root canal irrigation device according to claim 5, characterized in that: The wastewater tank further comprises a drain port and a sealing plug, wherein the drain port is arranged on the top wall of the tank body, and the sealing plug is sealedly connected to the drain port.

7. The root canal irrigation device according to claim 6, characterized in that: The waste water tank also includes a handrail, which is fixed on the outer side wall of the tank body.

8. The root canal irrigation device according to any one of claims 1 to 2, characterized in that: The root canal flushing device also includes a foot switch and a power supply, wherein the foot switch and the power supply are electrically connected to the host respectively, the foot switch is used to control the start and stop of the root canal flushing device, and the power supply is used to supply power to the root canal flushing device.

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