CN111420093A

CN111420093A - Dental chair pipeline disinfection system and dental chair pipeline suck-back prevention method

Info

Publication number: CN111420093A
Application number: CN202010322539.4A
Authority: CN
Inventors: 刘强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2020-07-17

Abstract

The invention discloses a dental chair pipeline disinfection system and a dental chair pipeline suck-back prevention method. After the disinfection is finished, the connecting pipe of the mobile phone is put back on the instrument plate of the dental chair, the controller is turned to a working state, and the mobile phone works normally; during the work, when the cell-phone stopped working, the fluid input end can be simultaneously cut off to the valve body, and the clean gas through worrying is carried to the pipeline to the atomizer simultaneously, makes all pipelines form the malleation, reduces or even stops the resorption.

Description

Dental chair pipeline disinfection system and dental chair pipeline suck-back prevention method

Technical Field

The invention relates to the technical field of medical instruments, in particular to a dental chair pipeline disinfection system and a dental chair pipeline suck-back prevention method.

Background

The dental chair is provided with a relatively complex pipeline, the output end of the pipeline is connected with the mobile phone, and the pipeline is difficult to clean and disinfect in daily maintenance, so that bacteria and viruses are easily stored in the pipeline, thereby causing cross infection among patients, and when the mobile phone is turned off, namely, the supply of gas and liquid is cut off, the movement of the mobile phone continues to rotate due to inertia to form a certain negative pressure, and the negative pressure can suck back pollutants such as saliva and blood in the oral cavity of the patient into a water vapor pipeline and the pipeline, thereby causing suck-back pollution.

Disclosure of Invention

The invention aims to provide a dental chair pipeline disinfection system and a dental chair pipeline suck-back prevention method.

In order to achieve the purpose, the invention adopts the following technical scheme:

the disinfection system of the dental chair pipeline comprises a mobile phone connecting pipe, a dental chair, an atomizer and a valve body;

the dental chair comprises a pipeline;

the valve body can be switched between a disinfection state and a working state;

in a disinfection state, the valve body cuts off the input of the pipeline and switches on the output end of the atomizer;

when the atomizer works, the valve body is switched to be connected with a pipeline and the output end of the atomizer is cut off.

From this, when disinfecting the pipeline, take off the cell-phone connecting pipe of dental chair apparatus dish, make the pipeline unblocked, the valve body switches on atomizer and pipeline, and the atomizer disinfects hypochlorous acid gas transport to the pipeline, and then carry clean gas, discharge the gaseous discharge pipeline of disinfecting outside, disinfect the back, the valve body cuts being connected of atomizer and pipeline, and the output and the cell-phone connecting pipe of pipeline are connected to normal work, the valve body can switch between disinfection state and operating condition.

In some embodiments, the valve body comprises a fluid input, a fluid output, and an air cavity;

the fluid input end is connected with a fluid supply device;

the fluid output end is connected with the input end of the pipeline;

the air cavity is connected with the atomizer.

Therefore, the fluid input end of the valve body is connected with the fluid supply device, and the fluid supply device can supply fluid required by work to the mobile phone; the atomizer is connected with the air cavity, can supply sterilizing gas or clean gas to the pipeline of dental chair, realizes operating condition and sterile state's switching through the valve body.

In some embodiments, the valve body further comprises a valve core, and the valve core is provided with a bridging air passage and a switching air passage;

when the valve core is at the initial position, the bridging air passage is communicated with the fluid input end and the fluid output end;

when the valve core is in the magnetic attraction position, the switching air passage is communicated with the fluid output end and the air cavity.

Therefore, the working state and the disinfection state are switched by the movement of the valve core, when the valve core is in the initial position, the system is in the working state, and the fluid input end is communicated with the fluid output end; when the valve core is in the magnetic attraction position, the system is in a disinfection state, and the air cavity is communicated with the fluid output end.

In some embodiments, the valve body further comprises a transmission chamber, and the valve core is slidably connected to the transmission chamber;

one end of the transmission cavity is provided with an electromagnet;

one end of the valve core close to the electromagnet is sleeved with a reset elastic piece, one end of the reset elastic piece is abutted against the electromagnet, and the other end of the reset elastic piece is abutted against the limiting flange of the valve core.

Therefore, the valve core realizes the switching between the magnetic attraction position and the initial position through the electromagnet and the reset elastic part structure, namely the switching between the working state and the disinfection state, and the reset elastic part is a spring.

In some embodiments, a sealing ring is provided on both sides of the bridging airway.

Thus, the sealing ring is arranged to increase the sealing performance of the bridging air channel.

In some embodiments, the air chamber comprises a first chamber provided with a first air passage and a second chamber provided with a second air passage.

Therefore, when the valve core is located at the magnetic attraction position, the first cavity and the second cavity are communicated with the corresponding switching air passage through the first air passage and the second air passage respectively.

In some embodiments, the fluid output end is provided with a first output group and a second output group, the first output group is provided with three groups, and the first output group comprises an A-bit output end, a B-bit output end and a C-bit output end;

the second output group comprises a D bit output end and an E bit output end;

the number of outputs of the fluid outputs corresponds to the number of inputs of the fluid inputs.

Therefore, three groups of first output groups and three groups of second output groups are arranged, so that the valve body can be simultaneously connected with four mobile phones.

The method for preventing the back suction of the dental chair pipeline comprises the following steps:

during working, when the handpiece is changed from starting to stopping, clean gas is conveyed to the pipeline of the dental chair, so that the pipeline forms positive pressure.

Therefore, after the disinfection is finished, the output end of the pipeline is connected with the mobile phone connecting pipe, the mobile phone works normally, when the mobile phone is turned off from starting in the working process, clean gas is synchronously and simultaneously conveyed to the pipeline of the dental chair, positive pressure is formed in the pipeline, and negative pressure suck back caused by inertial rotation of a movement of the mobile phone is prevented. The method effectively disinfects the pipeline of the dental chair pipeline, reduces cross infection, and can prevent the system from generating suck-back pollution by positively conveying clean gas.

The invention has the beneficial effects that: the atomizer atomizes the hypochlorous acid disinfectant and then conveys the atomized hypochlorous acid disinfectant to a pipeline of the dental chair to effectively disinfect the pipeline and a water-gas pipeline;

the valve body can be switched between the working state and the disinfection state, so that the disinfection of the pipeline of the dental chair is more convenient;

moreover, the disinfection method is to convey disinfection gas and clean gas to the pipeline of the dental chair in sequence, the disinfection effect is good and no residue is left;

finally, when the mobile phone is changed from starting to stopping, clean gas can be conveyed to the pipeline to form positive pressure so as to prevent suck back.

Drawings

FIG. 1 is a block diagram of a dental chair line disinfection system of the present invention;

FIG. 2 is a top view of the valve body of the dental chair line disinfection system of the present invention in the magnetically attracted position;

FIG. 3 is a front view of the valve body of the dental chair line disinfection system of the present invention in the magnetically attracted position;

FIG. 4 is a cross-sectional view A1-A1 of FIG. 2;

FIG. 5 is an enlarged view of D1 of FIG. 4;

FIG. 6 is a sectional view of B1-B1 of FIG. 3;

FIG. 7 is a cross-sectional view of C1-C1 of FIG. 6;

FIG. 8 is a top view of a valve body of the dental chair line disinfection system of the present invention in an initial position;

FIG. 9 is a front view of the valve body of the dental chair line disinfection system of the present invention in an initial position;

FIG. 10 is a cross-sectional view A2-A2 of FIG. 8;

FIG. 11 is an enlarged view of D2 of FIG. 10;

FIG. 12 is a cross-sectional view B2-B2 of FIG. 9;

FIG. 13 is a cross-sectional view of C2-C2 of FIG. 12;

wherein: 1-a mobile phone; 20 dental chairs; 2-a pipeline; 3-a valve body; 31-a transmission cavity; 32-air cavity; 321-a first cavity; 321 a-a first airway; 322-a second cavity; 322 a-a second airway; 33-a valve core; 331-bridging the airway; 332-a stop flange; 333-sealing ring; 334-switching air passages; 34-an electromagnet; 35-a return elastic member; 36-a fluid input; 37-a fluid output; 371 — first output group; a 3711-A bit output terminal; a 3712-B bit output terminal; a 3713-C bit output terminal; 372-a second output set; a 3721-D bit output terminal; a 3722-E bit output; 4-an atomizer; 41-a conveying pipeline; 5-a container; 6-a controller; 7-mobile phone connecting pipe; 8-fluid supply means.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 13, the disinfection system for dental chair pipeline comprises a handpiece connecting pipe 7, a dental chair 20, an atomizer 4 and a valve body 3;

dental chair 20 includes a pipeline 2;

the valve body 3 can be switched between a disinfection state and a working state;

in a disinfection state, the valve body 3 cuts off the input of the pipeline 2 and switches on the output end of the atomizer 4;

in the operating state, the valve body 3 is switched on to the pipeline 2 and the output of the atomizer 4 is switched off.

Further, the handset connection tube 7 can be connected to the handset 1.

To further illustrate, the valve body 3 includes a fluid input 36, a fluid output 37, and a gas chamber 32;

the fluid input 36 is connected to the fluid supply 8;

the fluid output 37 is connected to the input of line 2;

the air chamber 32 is connected to the atomizer 4.

Further explaining, the valve body 3 further comprises a valve core 33, and the valve core 33 is provided with a bridging air passage 331 and a switching air passage 334;

when the spool 33 is in the initial position, the bridge passage 331 communicates the fluid input 36 with the fluid output 37;

when the valve core 33 is in the magnetic attraction position, the transfer air passage 334 communicates the fluid output end 37 with the air chamber 32.

Further, the valve body 3 further comprises a transmission cavity 31, and the valve core 33 is slidably connected to the transmission cavity 31;

one end of the transmission cavity 31 is provided with an electromagnet 34;

one end of the valve core 33 close to the electromagnet 34 is sleeved with a reset elastic element 35, one end of the reset elastic element 35 abuts against the electromagnet 34, and the other end of the reset elastic element 35 abuts against a limit flange 332 of the valve core 33.

Further, two sides of the bridging air passage 331 are both provided with sealing rings 333.

Further, the air chamber 32 includes a first chamber 321 and a second chamber 322, the first chamber 321 is provided with a first air passage 321a, and the second chamber 322 is provided with a second air passage 322 a.

Further, the fluid output end 37 is provided with a first output group 371 and a second output group 372, the first output group 371 is provided with three groups, and the first output group 371 comprises an a-bit output end 3711, a B-bit output end 3712 and a C-bit output end 3713;

second output set 372 includes D-bit output 3721 and E-bit output 3722;

to explain further, the number of fluid outputs 37 corresponds to the number of fluid inputs 36.

Further, when the valve core 33 is in the magnetic attraction position, the plurality of second air passages 322a are respectively communicated with the a-bit output end 3711, the B-bit output end 3712 and the D-bit output end 3721;

the plurality of first air passages 321a communicate with the C-bit output terminal 3713 and the E-bit output terminal 3722, respectively.

Further, the atomizer 4 is provided with a piezoelectric plate and a fan; the atomizer 4 is connected to the air chamber 32 of the valve body 3 through a delivery conduit 41. The piezoelectric piece can atomize disinfectant solutions such as hypochlorous acid, and the fan can convey the atomized disinfectant gas to the pipeline.

Further, the atomizer 4 is provided with a filter structure, and the filter structure is a filter screen or a filter plate. When the piezoelectric patches do not work, the atomizer 4 can convey the filtered clean gas to the fluid output end of the valve body under the driving of the fan. The piezoelectric patches can be switched on and off in a limited time through a time switch and the like, so that the piezoelectric patches stop working after working for a period of time, the fan can continue working, the fan is connected with the inductive switch and the like, and the piezoelectric patches and the fan can be controlled independently.

Further, the dental chair 20 can control the start and stop of the mobile phone 1 by pedaling, the electromagnet 34 can be electrified by induction when the pedal is released, the electromagnet 34 is powered off when the pedal is stepped, and an induction switch can be arranged between the pedal and the electromagnet 34.

Further explaining, the system also comprises a controller 6, wherein the controller 6 is provided with a button which can switch the disinfection state and the working state; the controller 6 is electrically connected with the electromagnets 34 and the atomizer 4, respectively.

Further, the fluid supply device 8 is a waterway of the oral cavity complex treatment table.

during operation, when the handpiece 1 is turned from on to off, clean air is supplied to the line 2 of the dental chair 20, and the line 2 is pressurized to a positive pressure.

A method of disinfecting dental chair tubing, the method comprising the steps of:

the method comprises the following steps: the output end of the pipeline 2 of the dental chair 20 is communicated with the outside;

step two: delivering hypochlorous acid gas to the input end of line 2 of dental chair 20;

step three: delivering clean gas to the input end of line 2 of dental chair 20;

step four: after the disinfection is finished, the output end of the pipeline 2 is connected with the mobile phone connecting pipe 7, and the mobile phone 1 works normally.

Further, the hypochlorous acid is a food-grade disinfectant, the disinfection effect is good and safe, and residues can be reduced by atomizing into gas and then disinfecting.

The working principle is as follows:

before working, the button of the controller 6 is pulled to a disinfection state, the hand phone connecting pipe 7 of the dental chair 20 instrument tray is taken down and placed in the container 5, so that the output end of the pipeline 2 is communicated with the outside, and the pipeline 2 is smooth.

In the disinfection state, the piezoelectric sheet of the atomizer 4 and the fan are electrified to work, the piezoelectric sheet atomizes the hypochlorous acid solution into disinfection gas, the fan conveys the hypochlorous acid gas to the pipeline 2 of the dental chair 20, after about 5 minutes, the piezoelectric sheet stops atomizing, but the fan continues to work, and the filtered clean gas is conveyed to the pipeline 2, the duration time is about 3 minutes, the clean gas can remove the residual hypochlorous acid gas in the pipeline 2, and the disinfection of the pipeline of the dental chair 20 is completed. Referring to fig. 2 to 7, at this time, the electromagnet 34 of the valve body 3 electrically drives the valve core 33 to move from the initial position to the magnetic attraction position, that is, the valve core 33 is close to the electromagnet 34, and the first cavity 321 and the second cavity 322 are communicated with the fluid output end 37 through the switching air passage 334 of the valve core 33. Referring to fig. 6, it can be seen that at this time, the fluid input end 36 is misaligned with the bridging air channel 331, and the fluid input end 36 and the fluid output end 37 are in the blocking state.

After sterilization, the handpiece connector 7 in the container 5 is placed back on the instrument tray of the dental chair 20, and the button of the controller 6 is turned to the working state.

In the working state, the fluid input end 36 is communicated with the fluid output end 37, and the fluid supply device 8 can supply corresponding fluid to drive the mobile phone 1 to work normally; referring to fig. 8 to 13, when the electromagnet 34 is not powered, the valve element 33 is in the initial position under the action of the return elastic element 35, the valve element 33 is away from the electromagnet 34, and the bridging air passage 331 of the valve element 33 communicates the fluid input end 36 and the fluid output end 37. Referring to fig. 13, it can be seen that at this time, the first air passage 321a and the second air passage 322a of the air chamber 32 are both misaligned with the corresponding adaptor air passage 334, and the air chamber 32 and the fluid output end 37 are in a blocked state, i.e. the pipeline 2 is not communicated with the atomizer 4.

During the working conditions, when the handpiece 1 is activated, the line 2 expands under pressure, which provides the power for generating the negative pressure during the stoppage, and the high speed rotation of the movement helps this suction, so that bacteria or viruses in the mouth can easily enter the line 2. The system is that when the mobile phone 1 stops working, the system can cut off the fluid input end 36, and meanwhile, filtered clean gas is conveyed to the input end of the pipeline 2, so that all the pipelines 2 form positive pressure, and the possibility of back suction of instruments is avoided.

That is, when the mobile phone 1 stops working, the electromagnet 34 of the valve body 3 is energized instantly, the valve core 33 slides to the magnetic attraction position to enable the pipeline 2 to be communicated with the atomizer 4, and the fan of the fog device 4 is energized to work to convey the filtered clean gas into the pipeline 2 for about 3 seconds, so that positive pressure is formed in the pipeline 2 to prevent suck back. When the mobile phone 1 is started again, the valve core 33 is reset to the initial position, the fluid input end 36 is communicated with the fluid output end 37, and the mobile phone 1 works normally.

The foregoing disclosure discloses only some embodiments of the invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept herein, and it is intended to cover all such modifications and variations as fall within the scope of the invention.

Claims

1. The disinfection system for the dental chair pipeline is characterized by comprising a mobile phone connecting pipe (7), a dental chair (20), an atomizer (4) and a valve body (3);

the dental chair (20) comprises a pipeline (2);

the valve body (3) can be switched between a disinfection state and a working state;

in a disinfection state, the valve body (3) cuts off the input of the pipeline (2) and switches on the output end of the atomizer (4);

when the atomizer works, the valve body (3) is switched to be connected with the pipeline (2) and the output end of the atomizer (4) is cut off.

2. Dental chair line disinfection system according to claim 1, wherein the valve body (3) comprises a fluid input (36), a fluid output (37) and an air chamber (32);

the fluid input end (36) is connected with a fluid supply device (8);

the fluid output (37) is connected to the input of the pipeline (2);

the air chamber (32) is connected with the atomizer (4).

3. Dental chair line disinfection system according to claim 2, wherein the valve body (3) further comprises a valve cartridge (33), the valve cartridge (33) being provided with a bridging air passage (331) and a changeover air passage (334);

when the valve core (33) is in the initial position, the bridging air passage (331) is communicated with the fluid input end (36) and the fluid output end (37);

when the valve core (33) is in the magnetic attraction position, the adapting air passage (334) is communicated with the fluid output end (37) and the air cavity (32).

4. A dental chair line disinfection system as claimed in claim 3, wherein said valve body (3) further comprises a transmission chamber (31), said valve cartridge (33) being slidably connected to said transmission chamber (31);

one end of the transmission cavity (31) is provided with an electromagnet (34);

one end, close to the electromagnet (34), of the valve core (33) is sleeved with a reset elastic piece (35), one end of the reset elastic piece (35) abuts against the electromagnet (34), and the other end of the reset elastic piece (35) abuts against a limiting flange (332) of the valve core (33).

5. A dental chair line disinfection system as claimed in claim 3, wherein sealing rings (333) are provided on both sides of the bridging airway (331).

6. Dental chair line disinfection system according to claim 2, wherein the air chamber (32) comprises a first cavity (321) and a second cavity (322), the first cavity (321) being provided with a first air passage (321a) and the second cavity (322) being provided with a second air passage (322 a).

7. The system of claim 6, wherein the fluid output (37) is provided with a first output set (371) and a second output set (372), the first output set (371) being provided in three sets, the first output set (371) comprising an a-bit output (3711), a B-bit output (3712), and a C-bit output (3713);

the second output group (372) comprises a D-bit output (3721) and an E-bit output (3722);

the number of fluid outlets (37) corresponds to the number of fluid inlets (36).

8. The method for preventing the back suction of the dental chair pipeline is characterized by comprising the following steps:

during work, when the handpiece (1) is stopped from starting, clean gas is conveyed to the pipeline (2) of the dental chair (20) to enable the pipeline (2) to form positive pressure.