Oral irrigation device

By integrating the rinsing tube and suction tube into the same housing, the oral irrigation device solves the problems of long operation intervals and cross-infection risks in the prior art, and achieves efficient oral cleaning and waste liquid treatment.

CN224572855UActive Publication Date: 2026-07-31BENQ MEDICAL CENT SUZHOU CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BENQ MEDICAL CENT SUZHOU CO LTD
Filing Date
2025-07-02
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing oral irrigation devices cannot quickly adapt to different oral structures. The separation of irrigation and suction functions leads to long operation intervals and poses a risk of cross-infection. Furthermore, traditional devices are difficult to meet the operation needs of children or patients with crowded teeth.

Method used

Design an oral irrigation device that integrates the rinsing tube and the suction tube in the same housing. The dispensing head can be quickly replaced by an adapter, and the suction action can be controlled by a drive component, integrating rinsing and suction functions and reducing switching time.

Benefits of technology

It enables simultaneous rinsing and cleaning as well as waste absorption during oral hygiene, reducing switching time, simplifying treatment, improving operational efficiency, and lowering the risk of cross-infection.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224572855U_ABST
    Figure CN224572855U_ABST
Patent Text Reader

Abstract

This utility model provides an oral irrigation device, including a housing with an adapter on it, the adapter having a through hole communicating with the housing; a liquid outlet head detachably sleeved on the adapter, the liquid outlet head having a liquid outlet hole communicating with the through hole; an irrigation assembly including an irrigation tube and a pump body; the irrigation tube is disposed in the housing and contains irrigation fluid, one end of the irrigation tube is embedded in the through hole, and the other end is connected to the pump body; and a suction assembly including a suction port on the housing, and a suction tube and a waste liquid collection tank disposed in the housing; wherein, one end of the suction tube slides through the suction port in a first direction, the other end is connected to the waste liquid collection tank, and the bottom of the waste liquid collection tank has a negative pressure interface for connecting to an external negative pressure device.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of medical and nursing auxiliary devices, specifically to an oral care rinsing device. Background Technology

[0002] In oral healthcare, it is frequently necessary to rinse and clean the oral cavity, such as during tooth extractions and fillings, to maintain oral hygiene. This is especially important for dental implant surgery, where the mouth needs to be rinsed and waste fluids removed continuously during the procedure to prevent blood or debris from interfering with the surgical process.

[0003] Traditional oral irrigation devices often use a rigid dispensing head design with a fixed pipe diameter. This design does not allow for quick replacement of the dispensing head as needed, and requires multiple replacements of the entire irrigation device. This makes it difficult to adapt to the diverse operational needs of patients with special anatomical structures, such as children's mouths and patients with crowded teeth.

[0004] In existing technologies, the irrigation and aspiration functions are designed separately. In clinical practice, it is necessary to repeatedly change the irrigator and the negative pressure aspirator, resulting in an average operation interval of 8-12 seconds per operation. This leads to prolonged wound exposure time and an increased probability of secondary contamination. Independent aspiration devices are prone to soft tissue adsorption damage due to improper tube diameter matching, which not only increases the difficulty of postoperative management but also poses a risk of cross-infection.

[0005] Therefore, it is necessary to design an oral irrigation device to improve the above-mentioned defects. Utility Model Content

[0006] The purpose of this invention is to provide an oral irrigation device that integrates an irrigation tube and a suction tube in the same housing, enabling simultaneous rinsing and cleaning as well as waste fluid absorption during oral cleaning, reducing switching time; and it can be used with different types of dispensing heads via an adapter, allowing for quick disassembly and replacement during use, thus improving operational efficiency.

[0007] To achieve the above objectives, this utility model provides an oral irrigation device, comprising:

[0008] The housing has an adapter on it, and the adapter has a through-hole that communicates with the housing;

[0009] The liquid outlet head is detachably fitted onto the adapter, and the liquid outlet head has a liquid outlet hole communicating with the through port;

[0010] A flushing assembly includes a flushing pipe and a pump body; the flushing pipe is disposed within the housing and contains flushing fluid, one end of the flushing pipe is embedded in the through-hole, and the other end is connected to the pump body; and,

[0011] The suction assembly includes: a liquid extraction port opened on the housing, and a suction tube and a waste liquid collection tank disposed inside the housing; wherein one end of the suction tube is slidably inserted into the liquid extraction port, and the other end is connected to the waste liquid collection tank, and a negative pressure interface is opened at the bottom of the waste liquid collection tank for connection to an external negative pressure device.

[0012] Preferably, the oral irrigation device further includes a drive assembly disposed within the housing, the drive assembly comprising:

[0013] A pressing member, pivotally connected to the housing, has opposing first and second ends, the first end located within the housing, and the second end extending out of the housing; and

[0014] The transmission rod has one end hinged to the first end of the pressing member and the other end hinged to the outer wall of the suction tube.

[0015] Specifically, the pressing component is controlled to pivot, which in turn drives the transmission rod to move, and the transmission rod drives the suction tube to move axially along the suction port.

[0016] Preferably, the driver component also includes:

[0017] A fixing block is fixedly disposed on the outer wall of the suction tube, and the other end of the transmission rod is hinged to the fixing block; and,

[0018] A return spring is sleeved on the suction tube, with one end contacting the fixing block and the other end contacting the inner wall of the housing;

[0019] When the pressing element is pressed, the pressing element causes the transmission rod to move, the fixing block compresses the reset spring, and the transmission rod drives the suction tube to move and extend out of the suction port.

[0020] Preferably, the adapter is cylindrical, and a plurality of mounting grooves are evenly provided on the outer side wall of the adapter. The mounting grooves extend radially along the adapter, and a spring locking pin is movably installed in the mounting groove.

[0021] Preferably, the liquid outlet has a mounting portion, which is cylindrical and has an inner diameter that matches the outer diameter of the adapter.

[0022] The inner wall of the mounting part is provided with multiple guide grooves, which correspond one-to-one with the spring lock pin and fit together properly.

[0023] Preferably, the guide groove is an L-shaped guide groove, which includes a guide portion extending axially along the mounting portion and an engaging portion extending circumferentially along the inner sidewall of the mounting portion.

[0024] When the mounting part of the adapter is sleeved on the outer side wall of the adapter, the spring locking pin moves to the engaging part via the guide part of the corresponding L-shaped guide groove, and the adapter is rotated circumferentially so that the spring locking pin and the engaging part are engaged and fixed along the axial direction of the mounting part.

[0025] Preferably, the flushing tube extends into the liquid outlet, and a sealing ring is provided between the flushing tube and the liquid outlet.

[0026] Preferably, it also includes a switch; the switch protrudes from the housing and is electrically connected to the pump body to control the pump body to pressurize and spray the flushing fluid in the flushing pipe.

[0027] Preferably, the waste liquid collection tank is equipped with a filter screen that divides the waste liquid collection tank into upper and lower layers to filter waste residue.

[0028] Preferably, the housing also has a handle portion, and the handle portion has a receiving space, in which the waste liquid collection tank is located.

[0029] Compared with existing technologies, the oral irrigation device provided by this utility model integrates the irrigation tube and the suction tube within the same housing. A pump pressurizes the irrigation fluid in the irrigation tube to spray out for rinsing, while the suction tube removes waste fluid. This allows for simultaneous rinsing and waste fluid absorption during oral cleaning, reducing switching time and simplifying the process. Furthermore, the adapter allows for the use of different types of dispensing heads to meet various needs, enabling quick disassembly and replacement, and improving operational efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an oral irrigation device according to an embodiment of the present invention;

[0031] Figure 2 This is an exploded view of the overall structure of an oral irrigation device according to an embodiment of the present invention;

[0032] Figure 3 This is a partial internal structure diagram of an oral irrigation device according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the adapter and liquid outlet of an oral irrigation device according to an embodiment of the present invention;

[0034] Figure 5 This is a schematic cross-sectional view of the adapter of an oral irrigation device according to an embodiment of the present invention;

[0035] Figure 6 This is a cross-sectional view of the overall structure of an oral irrigation device according to an embodiment of the present invention;

[0036] Figure 7yes Figure 6 An enlarged schematic diagram of part A in the middle. Detailed Implementation

[0037] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.

[0038] Certain terms are used in the specification and claims to refer to specific elements. It will be understood by those skilled in the art that manufacturers may use different names to refer to the same element. This specification and claims do not distinguish elements by differences in name, but rather by differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to".

[0039] Reference Figure 1 , Figure 2 and Figure 6 As shown, Figure 1 This is a schematic diagram of the overall structure of the oral irrigation device of this utility model; Figure 2 This is an exploded view of the overall structure of the oral irrigation device of this utility model. Figure 6 This is a cross-sectional view of the overall structure of the oral irrigation device of this utility model.

[0040] The oral irrigation device of this invention includes a housing 1, a liquid outlet head 6, an irrigation assembly, and a suction assembly. The housing 1 is cylindrical and preferably made of medical-grade polymer material, possessing lightweight and corrosion-resistant properties. An adapter 2 is installed at the front end of the housing 1, preferably coaxially mounted with the housing 1. The adapter 2 has an axially formed through-hole 201 communicating with the inner cavity of the housing 1. The liquid outlet head 6 is detachably fitted onto the front end of the adapter 2, and has a liquid outlet hole communicating with the through-hole. It is understood that the adapter 2 can be used with different types of liquid outlet heads 6 to meet different needs, allowing for quick disassembly and replacement, and improving operational efficiency.

[0041] The aforementioned rinsing assembly includes a rinsing tube 3 and a pump body 301. The rinsing tube 3 is disposed within the housing 1 and contains rinsing fluid. One end of the rinsing tube 3 is embedded in the through-hole 201, and the other end extends to the rear end of the housing 1 and is connected to the pump body 301. The pump body 301 is electrically connected to a rinsing switch 302, which extends out of the housing 1. By pressing the rinsing switch 302, medical personnel can control the pump body 301 to pressurize and spray the oral rinsing fluid in the rinsing tube 3, so that the rinsing fluid is delivered through the through-hole 201 to the front end of the outlet head 6, thereby achieving directional rinsing of the oral cavity.

[0042] The aforementioned aspiration assembly includes a suction port 101 opened on the housing 1, and a suction tube 4 and a waste liquid collection tank 8 disposed within the housing 1. The suction port 101 is located below the quick-release connector 2. One end of the suction tube 4 passes through the suction port 101 and can slide within the suction port 101 in a first direction (i.e., along the axial direction of the suction port 101). The other end of the suction tube 4 is connected to the upper opening of the waste liquid collection tank 8. The bottom of the waste liquid collection tank 8 is provided with a negative pressure interface 802, which can be connected to an external negative pressure device. A filter screen 801 (preferably made of stainless steel) is provided inside the tank, dividing the waste liquid collection tank 8 into upper and lower layers, which facilitates postoperative management and reduces the difficulty of management.

[0043] As can be seen, the oral irrigation device provided by this utility model integrates the irrigation tube 3 and the suction tube 4 in the same housing 1. The pump body 301 pressurizes the irrigation fluid in the irrigation tube 3 to achieve spraying and rinsing, and the suction tube 4 is used to suction the waste liquid. During the oral cleaning process, rinsing and cleaning and waste liquid absorption can be carried out simultaneously, reducing the switching time.

[0044] In one embodiment, the lower rear end of the housing 1 is further provided with a hand grip 5. The outer side of the hand grip 5 is covered with anti-slip rubber. The hand grip 5 has an accommodating space, in which the waste liquid collection tank 8 is installed.

[0045] Further reference Figure 2 and Figure 3 As shown, in one embodiment, the oral irrigation device further includes a drive assembly disposed within the housing 1. The drive assembly includes a pressing member 7 (e.g., Y-shaped), a transmission rod 702, a fixing block 401, and a return spring 402. The fixing block 401 is fixedly disposed on the outer wall of the suction tube 4. The pressing member 7 is pivotally connected to the housing 1, and has opposing first and second ends. The first end is located inside the housing 1, and the second end extends out of the housing 1 (preferably protruding from the front side of the connection between the hand grip portion 5 and the housing 1) for user operation. One end of the transmission rod 702 is hinged to the first end of the pressing member 7, and the other end is hinged to the fixing block 401. The return spring 402 is sleeved on the suction tube 4, with one end contacting the inner wall of the housing 1 (e.g., Y-shaped). Figure 7 The other end contacts the fixing block 401. In a preferred embodiment, fixing blocks 401 are symmetrically arranged on the left and right outer side walls of the suction tube 4, and two transmission rods 702 are also symmetrically arranged, and the two transmission rods 702 are hinged to the corresponding fixing blocks 401.

[0046] When the control button 7 pivots, it drives the transmission rod 702 to move, which in turn drives the suction tube 4 to move axially along the suction port 101. Specifically, in the initial state, one end of the suction tube 4 protrudes from the discharge port 101. When a medical staff member presses the control button 7, the control button 7 pivots and drives the transmission rod 702 to move towards the discharge port 101. The transmission rod 702 pushes the suction tube 4 further forward, protruding from the discharge port 101, to significantly increase the suction range. At this time, the fixing block 401 compresses the return spring 402. When the medical staff member releases the control button 7, the return spring 402 returns to its original position, pushing the suction tube 4 back to its initial position. With the above-mentioned drive components, the controllability of the suction action can be ensured, avoiding soft tissue damage caused by continuous suction. Furthermore, this device can be operated with a single hand, eliminating operation intervals.

[0047] Please continue to refer to Figure 4 and Figure 5 As shown, the adapter 2 is cylindrical, and multiple mounting grooves 202 are evenly distributed circumferentially on the outer side wall of the adapter 2. Each mounting groove 202 is a cylindrical groove extending radially along the adapter 2. A spring-locking pin 203 is movably installed within each mounting groove 202, and the spring at the tail of the spring-locking pin 203 is connected to the bottom of the cylindrical groove 202 (e.g., ...). Figure 5 As shown, the spring lock pin 203 can extend and retract within the cylindrical groove 202. The dispensing head 6 has a mounting part, which is cylindrical in shape and its inner diameter matches the outer diameter of the adapter 2. Multiple guide grooves 601 (L-shaped guide grooves) are provided on its inner sidewall, corresponding one-to-one with the spring lock pin 203 and engaging properly. The guide groove 601 is L-shaped, including a guide portion extending axially along the mounting part and a engaging portion extending circumferentially along the inner sidewall of the mounting part. When the mounting part of the adapter 2 is fitted onto the outer sidewall of the adapter 2, the spring lock pin 203 moves to the engaging portion via the guide portion of the corresponding L-shaped guide groove, and then the adapter 2 is rotated circumferentially, so that the spring lock pin 203 and the adapter 2 are engaged and fixed axially along the mounting part, ensuring a stable connection between the dispensing head 6 and the adapter 2.

[0048] like Figure 7 As shown, in one embodiment, the flushing tube 3 extends into the liquid outlet 6, and a sealing ring 602 is provided between the flushing tube 3 and the liquid outlet 6. The sealing ring 602 is made of medical silicone material, and its inner diameter is equal to the outer diameter of the flushing tube 3, so as to realize the dynamic sealing between the flushing tube 3 and the liquid outlet 6 and prevent the flushing fluid from leaking.

[0049] When using this device for oral irrigation, first select a suitable dispensing head 6, attach it to the front end of the adapter 2, and rotate to lock it. Connect the external negative pressure device to the negative pressure interface 802 to maintain the suction tube 4 in a negative pressure suction state. Turn on the irrigation switch 302 to start the pump body 301, and the irrigation fluid will spray out from the front end of the dispensing head 6 through the irrigation tube 3 for rinsing. When it is necessary to aspirate waste liquid, hold the handle 5 with one hand and press the press element 7 with your thumb to push the suction tube 4 forward, aspirating the waste liquid in the oral cavity into the waste liquid collection tank 8. The waste liquid is stored after being filtered through the filter screen 801. When the press element 7 is released, the return spring 402 automatically retracts the suction tube 4, stopping the suction. When it is necessary to replace the dispensing head 6, simply rotate the dispensing head 6 in the opposite direction for quick disassembly.

[0050] Furthermore, in one embodiment, to optimize the pressure control function of the flushing fluid, a pressure regulating valve is installed in the middle section of the flushing pipe 3. The pressure regulating valve includes a knob and a valve body. The knob is exposed on the side of the housing 1. The opening degree of the valve body can be adjusted by rotating the knob, thereby controlling the flow rate and pressure of the flushing fluid. The pressure regulating valve is electrically connected to the pump body 301 and can automatically adjust the output power of the pump body 301 according to the valve body opening degree to achieve the regulation of flushing pressure. Furthermore, in one preferred embodiment, an LCD screen is added to the outer surface of the housing 1 to display the current flushing pressure value in real time, which facilitates precise operation by medical personnel.

[0051] In summary, the oral irrigation device provided by this utility model integrates the irrigation tube and the suction tube within the same housing. Irrigation is achieved by pressurizing the irrigation fluid through a pump, and the suction action is controlled as needed by a drive assembly. Furthermore, the adapter 2 allows for the use of different types of dispensing heads 6, meeting various needs and enabling quick disassembly and replacement, thus improving operational efficiency. Moreover, by using an external negative pressure device in conjunction with a waste fluid collection tank and employing a filter screen to filter the aspirated waste fluid, the difficulty of postoperative management is reduced.

[0052] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.

Claims

1. An oral irrigation device, characterized by, include: The housing has an adapter on it, and the adapter has a through-hole that communicates with the housing; The liquid outlet head is detachably fitted onto the adapter, and the liquid outlet head has a liquid outlet hole communicating with the through port; A flushing assembly includes a flushing pipe and a pump body; the flushing pipe is disposed inside the housing and contains flushing fluid, one end of the flushing pipe is embedded in the through-hole, and the other end is connected to the pump body; as well as, The suction assembly includes: a liquid extraction port opened on the housing, and a suction tube and a waste liquid collection tank disposed inside the housing; wherein one end of the suction tube is slidably inserted into the liquid extraction port, and the other end is connected to the waste liquid collection tank, and a negative pressure interface is opened at the bottom of the waste liquid collection tank for connection to an external negative pressure device.

2. The oral irrigation device of claim 1, wherein, It also includes a drive assembly disposed within the housing, the drive assembly comprising: A pressing member, pivotally connected to the housing, has opposing first and second ends, the first end located within the housing, and the second end extending out of the housing; and The transmission rod has one end hinged to the first end of the pressing member and the other end hinged to the outer wall of the suction tube. Specifically, the pressing component is controlled to pivot, which in turn drives the transmission rod to move, and the transmission rod drives the suction tube to move axially along the suction port.

3. The oral irrigation device of claim 2, wherein, The driver component also includes: A fixing block is fixedly disposed on the outer wall of the suction tube, and the other end of the transmission rod is hinged to the fixing block; and, A return spring is sleeved on the suction tube, with one end contacting the fixing block and the other end contacting the inner wall of the housing; When the pressing element is pressed, the pressing element causes the transmission rod to move, the fixing block compresses the reset spring, and the transmission rod drives the suction tube to move and extend out of the suction port.

4. The oral irrigation device of claim 1, wherein, The adapter is cylindrical, and multiple mounting grooves are evenly arranged on the outer side wall of the adapter. The mounting grooves extend radially along the adapter, and spring locking pins are movably installed in the mounting grooves.

5. The oral irrigation device of claim 4, wherein the handle is configured to be held in a hand of the user. The liquid outlet has a mounting part, which is cylindrical and its inner diameter is adapted to the outer diameter of the adapter. The inner wall of the mounting part is provided with multiple guide grooves, which correspond one-to-one with the spring lock pin and fit together properly.

6. The oral irrigation device of claim 5, wherein, The guide groove is an L-shaped guide groove, which includes a guide portion extending axially along the mounting portion and a locking portion extending circumferentially along the inner sidewall of the mounting portion; When the mounting part of the adapter is sleeved on the outer side wall of the adapter, the spring locking pin moves to the engaging part via the guide part of the corresponding L-shaped guide groove, and the adapter is rotated circumferentially so that the spring locking pin and the engaging part are engaged and fixed along the axial direction of the mounting part.

7. The oral irrigation device of claim 1, wherein, The flushing tube extends into the liquid outlet, and a sealing ring is provided between the flushing tube and the liquid outlet.

8. The oral irrigation device of claim 1, wherein, It also includes a switch; the switch protrudes from the housing and is electrically connected to the pump body to control the pump body to pressurize and spray the flushing fluid in the flushing pipe.

9. The oral irrigation device of claim 1, wherein, The waste liquid collection tank is equipped with a filter screen that divides the tank into upper and lower layers to filter waste residue.

10. The oral irrigation device of claim 1, wherein, The housing also has a handle, and the handle has a receiving space in which the waste liquid collection tank is located.