JPH0423543Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is installed in a dental clinic and is used to remove cutting dust, water injection, and saliva droplets that are generated in the oral cavity when a doctor grinds a patient's cavity. This invention relates to a dental dust suction device that sucks in cutting dust and droplets by setting a suction port near the oral cavity.

[Conventional technology]

In conventional dental clinics, cutting dust, water, saliva, etc. generated when grinding a patient's cavities are sucked in through a vacuum mouth inserted into the patient's mouth by an assistant.

[Problem that the invention attempts to solve]

However, the cutting dust generated by this grinding is very fine, and not all of it is sucked into the vacuum mouth, and some of the cutting dust, droplets, and bacteria attached to the teeth, along with dental plaque, etc. It scatters from the patient's oral cavity into the clinic room, contaminating the air inside the clinic.

Recently, it has become a problem that doctors, assistants, or patients are at risk of becoming infected and becoming ill if they directly inhale these scattered bacteria or come into contact with bacteria that has accumulated on the floor or equipment. .

[Means for solving problems]

This invention aims to solve the above-mentioned problems in conventional dental treatment by installing a suction port connected to a vacuum device near the patient's oral cavity to remove cutting dust, droplets, and bacteria that fly from the patient's oral cavity. This is to prevent inhalation and contamination of the air in the treatment room, as well as to prevent doctors and assistants from inhaling these materials and becoming infected. a first arm to which a shaft is attached; a rotating shaft rotatably attached to the tip of the first arm; two parallel rods having one end rotatably attached to the rotating shaft; a support member rotatably attached to the tip of the parallel rod; a biasing means stretched between the two parallel rods in order to balance the weight applied to the support member; and the support member. a suction port mounted to be rotatable in vertical and horizontal directions; a connecting pipe for connecting the suction port to the vacuum means; A dental dust suction device comprising an extending plate and a piston that is housed in a plurality of through holes formed in the other parallel rod, and that protrudes and abuts against the plate with friction when pressure from a pressure source is applied. made by.

[Effect]

The dental dust suction device of the present invention pulls out the first arm by rotating the rotating shaft pivotally supported on the base,
Furthermore, by rotating the rotating shaft to which the parallel rod is attached, the support body to which the suction port is attached can be pulled out from the base body to any desired position.

In addition, by rotating the two parallel rods about the rotation axis, the support body can be moved up and down without changing its angle.
The suction port can be brought near the patient's oral cavity.

Then, by rotating the suction port up and down, left and right, and directing it towards the patient's oral cavity, the Vacuum device is operated, which sucks in the cutting dust, droplets, and bacteria scattered from the patient's oral cavity, and air in the treatment room. This is to prevent contamination.

Furthermore, if you want to fix the suction port close to the patient's oral cavity, by supplying compressed air into the through hole formed on one side of the parallel rod, the piston will protrude and the tip will be placed parallel to the other side. Since the two parallel rods come into frictional contact with the plates attached to the rods, the movement of the two parallel rods is fixed, and therefore the suction port can be fixed close to the patient's oral cavity.

〔Example〕

An embodiment in which the dental dust suction device of the present invention is attached and uses a partition unit that partitions a treatment room into treatment sections will be described below with reference to the drawings.

In Figures 1 to 3, A ₁ is a partition wall that separates the patient passage side, and on one side of it is a medical treatment section B.
A partition wall _A2 is connected to one side of a partition unit C that partitions the space.

A chair D for a patient is installed in each of the plurality of treatment sections B thus formed, and patients enter the treatment section B from between the partition wall A ₁ and the partition wall A ₂ of the adjacent treatment section B. , seated on chair _B1 , and the doctor and assistant enter the room through the end of partition unit C.

The partition unit C is equipped with equipment necessary for medical treatment, such as a doctor table D, an assistant table E, a film viewer F, a spittoon G, a dust suction arm H, and a brushing mirror I.

This brushing mirror I is used to instruct the patient in tooth brushing by photographing the patient's tooth brushing state.

Next, the doctor table D mentioned above is
FIG. 7 will be explained.

There is a bulkhead below table C ₁ in Figures 1 and 2.
A guide rail 1 bent in an L-shape or a U-shape is attached to the end opposite to _A2 .

Two rollers 2 are installed on the top surface of this guide rail 1.
A movable body 5 that can move along the guide rail 1 is movably supported with two rollers 3 on the front side and one roller 4 on the back side.

A rotating body 6 is attached to the lower surface of the moving body 5 so as to be rotatable in the horizontal direction, and two rollers 7 of the rotating body 6 are in contact with the front surface of the rail 1.

Therefore, when all of the rollers 7 of the rotating body 6 are in contact with the rail 1, the rotating body 6 cannot rotate relative to the moving body 5, but as shown in FIG. When the rail 1 moves to an L-shaped position at the end of the rail 1, one roller 7 of the rotating body 6 becomes free, and the rotating body 6 becomes rotatable.

A support 8 is fixed to this rotating body 6, and a support rod 10 and a support frame 11 are connected between it and the base 9 of the doctor table D.
are supported in such a way that their fulcrums form parallelograms.

Therefore, the support rod 10 and the support frame 11 rotate while maintaining a parallel state around the fulcrum of the support 8, and therefore, the doctor table D attached to the top surface of the table 9 can rotate up and down while remaining horizontal. You can move to

A guide roller 12 is pivotally attached to the support frame 11, and an arm 14 is pivotally attached to one end of a chain 13 at the fulcrum between the stand 9 and the support rod 10. It is slidably fitted on the shaft of No. 12.

Therefore, the rotation angle of the support rod 10 and the support frame 11 with respect to the support body 8 is limited to the range in which the elongated hole 14a can move the axis of the guide roller 12, and the rotation angle of the support rod 10 and the support frame 11 with respect to the support body 8 is limited to the range in which the elongated hole 14a can move the axis of the guide roller 12. The height of is limited to a certain range.

The chain 13 is fixed to a fixing piece 16 to which one end of a spring 15 is fixed via the upper surface of the guide roller 12, and the other end of the spring 15 is attached to a fulcrum of the support frame 11 and the support body 8. It is fastened to a fastening piece 17 that is screwed into the screw rod 18.

Therefore, when the table 9 also descends as the doctor table D descends, the spring 15 is stretched by the chain 13, and the gravitational force applied to the table 9 due to the drag force causes the doctor table D to move downward. Balance, Doctor Table D
can be stopped at any height.

Then, by rotating the screw rod 18, the fastening piece 17 is moved and the strength of the spring 15 is adjusted to achieve the optimum balance.

In this way, the doctor table D can be moved back and forth, so when the doctor enters and leaves the treatment area B, he moves it to the end of the rail 1 and moves it to the end of the rail 1, as shown by D'' in FIG. It also rotates to the retracted state so that it does not get in the way of entering and exiting the room.

In addition, when a patient enters treatment area B, sits on chair B ₁ , and is interviewed and examined in a standing position,
Doctor table D can be used by moving doctor table D to position D'.

Furthermore, when examining or treating a patient in a supine position, the device is returned to the D position near the patient's head.

A support 19 of a holder 20 for hooking and supporting a tool used for machining teeth of an air turbine or the like is attached to the lower surface of the doctor table D as shown in FIG. far ultraviolet tube 50
is installed.

Therefore, tools such as an air turbine can be held in the holder 20.
If you hook it to a
Bacteria on these tools are killed and good hygiene is maintained.

Further, on the front surface of this holder 20, a cover 21 is provided in two stages, the front surface of which can be opened by rotating in the direction of arrow a. It is designed so that it can be rotated sideways to the closed state shown in FIG.

Therefore, by closing this when not in use, it is possible to increase the efficiency of far ultraviolet irradiation, and also prevent dust and bacteria floating in the air from adhering to the tool. This can prevent doctors from becoming infected with bacteria.

Next, the 9th film viewer F, which holds an X-ray photograph, etc., and looks through it with a light beam from the rear, is installed.
10 will be explained.

This film viewer F is composed of a frame body 23 with a frosted glass 22 on the front side and a fluorescent lamp housed _inside . It is attached to the other end of a support rod 24 which is supported and is rotatable in the horizontal direction.

Therefore, the support rod 24 can be rotated and pulled out from the partition unit C to any desired position, and the support rod 24 can be pulled out to any desired position.
It can be oriented at any angle relative to 4.

Therefore, it is possible to make good use of the X-ray photographs, such as by explaining medical treatment while showing the X-ray photograph to the patient, or by bringing the X-ray photograph close to the patient's head and performing treatment while looking at it.

Next, the patient should gargle with Spitton G first.
11 to 13 will be explained.

In the partition unit C, a window hole _3C3 is bored in the wall opposite to the side where the doctor table D is installed, and a support arm 26 with a rail 25 whose upper and lower sides are guide surfaces is fixed in the center of the window hole 3C3. Moreover, a guide roll 27 is rotatably attached to the tip of this support arm 26.

Spitton G is the drain fitting 29 at the tip of the covering frame 28.
A drain pipe 30 from the drain fitting 29 passes through the support arm 26 and is connected to a drain pipe under the floor.

Then, an inner frame 31 fixed inside the cover frame 28
A roll 32 that rolls between the upper and lower guide surfaces of the rail 25 is attached to the rail 25, and a rail 33 having a recessed portion 33a near the outer end is attached. It is placed.

Therefore, the rail 33 is guided by the guide roll 27, and the roll 32 rolls on the rail 25, so that the covering frame 28 can be pulled forward or pushed backward with respect to the support arm 26. .

As a result, the spittoon G is connected to the partition unit C.
The patient can easily gargle by pulling it forward and bringing it close to the patient.

However, when not in use, the spittoon G is moved closer to the partition unit C to widen the distance between it and the patient, making it easier for the assistant to work. This prevents Spitton G from sticking out easily.

Further, regardless of the position of the spittoon G, the drain pipe 30 passes through the cover frame 28 and the support arm 26 and is not visible from the outside, so that the appearance is not spoiled.

Next, during patient treatment, bacteria, tooth polishing powder, etc. that are scattered from the patient's oral cavity are absorbed, and the doctors and assistants inhale the airborne particles.
The dust suction arm H for preventing infection with diseases will be explained with reference to FIGS. 14 to 18.

This dust suction arm H is provided below the table C ₁ of the partition unit C, and has a rotary shaft 34 rotatably attached to the partition unit C, and is attached to the tip of a first arm 35 that is rotatable in the horizontal direction. A rotating shaft 36 is rotatably attached.

The base ends of a first support rod 37 and a second support rod 38 are pivotally supported on the rotating shaft 36, and a support body 39 is pivotally supported at the tips of these, and these pivot points are parallel to each other. It forms a quadrilateral.

The first arm 35 rotates in the horizontal direction by the rotation of the rotation shaft 34 to pull out the rotation shaft 36, and further rotates the first support rod 37 and the second support rod 38 in the horizontal direction by the rotation of the rotation shaft 36. It is possible to rotate the support body 39 to any horizontal position.

A bolt 40 is screwed into the middle of the second support rod 38, and by its rotation, the lengths of the rotating shaft 36 and the support body 39 are adjusted, and the lengths of the first support rod 37 and the second support rod 38 are adjusted. Together, the supports 39 are kept vertical.

Further, a spring 41 is stretched between the first support rod 37 and the second support rod 38, and the weight and other loads applied to the support body 39 due to the biasing of the spring 41 cause the first support rod 37, The second support rod 38 prevents the support body 39 from rotating in the direction of lowering it.

A limiting arm 42 having a long hole 42a is pivotally attached to the pivot point between the second support rod 38 and the rotation shaft 36, and the long hole 42a is connected to the pin 37a of the first support rod 37.
It is slidably mated to the

By this fitting, the first support rod 37 and the second support rod 3
8 rotates in the vertical direction, the pin 37a is inserted into the elongated hole 4.
2a, but the pin 37a is inserted into the elongated hole 42.
By reaching the end a, the rotation angle of the first support rod 37 and the second support rod 38, that is, the vertical position of the support body 39 is limited within a certain range.

Further, a plate 37b is fixed to the left and right side surfaces of the first support rod 37, and a plurality of through holes 38a are bored between the plates 37b in the second support rod 38, and the inner surface of the second support rod 38 is formed in the through holes 38a. Two pistons 43 each serving as a pressure surface are inserted symmetrically, and a compressed air pipe 44 is connected between the pressure surfaces of each piston 43.

Therefore, when compressed air is introduced between the pressure surfaces of the piston 43, the outer end of the piston 43 is brought into contact with the plate 37.
b, and in order to stop the movement of the plate 37b, the vertical rotation of the first support rod 37 and the second support rod 38 is stopped.

The support body 39 can thus be stopped at a position near the patient's face.

An L-shaped plate 45 is attached to the lower surface of the support body 39 so as to be freely rotatable in the horizontal direction, and a suction port 46 is attached to this L-shaped plate 45 so as to be freely rotatable in the vertical direction. It can be oriented in any direction, up, down, left, or right.

A pipe 4 connected to this suction port 46
7 is a cover plate 48 of the first support rod 37 and the second support rod 38;
and is connected to the vacuum device through the inside of the first arm 35.

Therefore, if this suction port 46 is placed close to the patient's oral cavity and directed in that direction, the dust scattered during treatment and the bacteria emitted from the oral cavity will be inhaled together with the air, and the doctor or assistant will inhale this and become infected. It is possible to prevent this and also to prevent indoor contamination.

Finally, the assistant table E is a table on which a vacuum mouth for inhaling saliva and treatment dust in the patient's oral cavity, a water injection nozzle for injecting cleansing water into the oral cavity, and the like are hung.

[Effect of idea]

As described above, the present invention rotates the first arm in the horizontal direction with respect to the base by rotating its rotation axis, and further rotates the first arm in the horizontal direction with respect to the base by rotating the rotation axis at its tip.
By rotating the parallel rod of the book in the horizontal direction, the suction port attached to the support at the tip can be pulled out from the base to any desired position.

If the two parallel rods are rotated in a direction perpendicular to the rotation axis, the weight applied to the support body by the urging means can be balanced, and the suction port can be set to an arbitrary height. I can do it.

In this way, by setting the suction port close to the patient's oral cavity and rotating the suction port vertically and horizontally with respect to the support, the suction port can be directed toward the patient's oral cavity, and the vacuum device As a result, cutting dust, droplets, and bacteria from the patient's oral cavity are sucked in with the air, thereby preventing contamination of the air in the treatment room.

This keeps the air in the clinic clean and prevents doctors and assistants from inhaling bacteria, or from touching their hands with germs on equipment placed in the clinic and becoming infected with bacteria. The risk of developing the disease can be prevented.

Furthermore, by supplying compressed air into the through hole formed in one of the parallel rods, the piston protrudes and the tip abuts with friction against the plate attached to the other parallel rod, so that the two The movement of the parallel rods is fixed, so the suction port can be fixed close to the patient's oral cavity, and the suction port will not be lowered during work by the doctor or assistant, etc. It has the following effects.

[Brief explanation of the drawing]

1 and 2 are slope views from the opposite side when the medical treatment section of the embodiment is formed, FIG. 3 is a plan view of the same, and FIG. 4 is a front view of the doctor table slide mechanism.
5 and 6 are a side view and a plan view thereof, FIG. 7 is a side view of the doctor table support mechanism, FIG. 8 is a side view of a part of the doctor table, and FIGS. 9 and 10.
The figures are a plan view and a perspective front view of the film viewer, Figure 11 is a side view of the spittoon entry and exit mechanism, and Figure 12 is a side view of the spittoon entry and exit mechanism.
Figure 13 is the front view and plan view, Figure 14,
Figure 15 is a plan view and side view of the dust suction arm, Figure 16 is
17 are a side view and a plan view of the rotation prevention mechanism, and FIG. 18 is a perspective view of the suction port portion thereof. A ₁ ...Partition wall, B...Clinical section, C...Partition unit, D...Doctor's table, E...
Assistant table, F...Film viewer, G...Spitzton, H...Dust suction arm, 1...
...Guide rail, 2, 3, 4...Roller, 5...
Moving body, 6... Rotating body, 7... Roller, 9...
Stand, 10... Support rod, 11... Support frame, 13... Chain, 15... Spring, 19... Support, 20
... Holder, 50 ... Far ultraviolet tube, 21 ... Cover, 22 ... Ground glass, 23 ... Frame, 24 ...
...support rod, 25...rail, 26...support arm,
28... Covering frame, 30... Drain pipe, 33... Rail, 34... Rotating shaft, 35... First arm, 3
6...Rotating shaft, 37...First support rod, 38...Second
Support rod, 39...Support, 41...Spring, 4
5... L-shaped board, 46... Suction port, 47... Pipe, 48... Covering plate.

Claims (1)

[Scope of utility model registration request] a first arm having a rotary shaft attached to the rotary shaft so as to be rotatable in a horizontal direction with respect to the floor; a rotary shaft rotatably attached to the tip of the first arm; and one end rotatably attached to the rotary shaft. Two parallel rods are attached, a support is rotatably attached to the tips of the two parallel rods, and a space is provided between the two parallel rods in order to balance the weight applied to the support. a biasing means stretched over the supporting member; a suction port mounted on the support body so as to be rotatable in vertical and horizontal directions; a connecting pipe connecting the suction port to the vacuum means; A plate is attached to the left and right sides and extends to the left and right sides of the other parallel rod, and the plate is housed in a plurality of through holes formed in the other parallel rod, and when pressure from a pressure source is applied, the plate protrudes and applies friction to the plate. A dental dust suction device characterized by comprising a piston that comes into contact with the piston.